git-gui.shon commit git-gui: Implemented file browser and incremental blame. (35874c1)
   1#!/bin/sh
   2# Tcl ignores the next line -*- tcl -*- \
   3exec wish "$0" -- "$@"
   4
   5set appvers {@@GIT_VERSION@@}
   6set copyright {
   7Copyright © 2006, 2007 Shawn Pearce, Paul Mackerras.
   8
   9This program is free software; you can redistribute it and/or modify
  10it under the terms of the GNU General Public License as published by
  11the Free Software Foundation; either version 2 of the License, or
  12(at your option) any later version.
  13
  14This program is distributed in the hope that it will be useful,
  15but WITHOUT ANY WARRANTY; without even the implied warranty of
  16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17GNU General Public License for more details.
  18
  19You should have received a copy of the GNU General Public License
  20along with this program; if not, write to the Free Software
  21Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA}
  22
  23######################################################################
  24##
  25## read only globals
  26
  27set _appname [lindex [file split $argv0] end]
  28set _gitdir {}
  29set _gitexec {}
  30set _reponame {}
  31set _iscygwin {}
  32
  33proc appname {} {
  34        global _appname
  35        return $_appname
  36}
  37
  38proc gitdir {args} {
  39        global _gitdir
  40        if {$args eq {}} {
  41                return $_gitdir
  42        }
  43        return [eval [concat [list file join $_gitdir] $args]]
  44}
  45
  46proc gitexec {args} {
  47        global _gitexec
  48        if {$_gitexec eq {}} {
  49                if {[catch {set _gitexec [exec git --exec-path]} err]} {
  50                        error "Git not installed?\n\n$err"
  51                }
  52        }
  53        if {$args eq {}} {
  54                return $_gitexec
  55        }
  56        return [eval [concat [list file join $_gitexec] $args]]
  57}
  58
  59proc reponame {} {
  60        global _reponame
  61        return $_reponame
  62}
  63
  64proc is_MacOSX {} {
  65        global tcl_platform tk_library
  66        if {[tk windowingsystem] eq {aqua}} {
  67                return 1
  68        }
  69        return 0
  70}
  71
  72proc is_Windows {} {
  73        global tcl_platform
  74        if {$tcl_platform(platform) eq {windows}} {
  75                return 1
  76        }
  77        return 0
  78}
  79
  80proc is_Cygwin {} {
  81        global tcl_platform _iscygwin
  82        if {$_iscygwin eq {}} {
  83                if {$tcl_platform(platform) eq {windows}} {
  84                        if {[catch {set p [exec cygpath --windir]} err]} {
  85                                set _iscygwin 0
  86                        } else {
  87                                set _iscygwin 1
  88                        }
  89                } else {
  90                        set _iscygwin 0
  91                }
  92        }
  93        return $_iscygwin
  94}
  95
  96######################################################################
  97##
  98## config
  99
 100proc is_many_config {name} {
 101        switch -glob -- $name {
 102        remote.*.fetch -
 103        remote.*.push
 104                {return 1}
 105        *
 106                {return 0}
 107        }
 108}
 109
 110proc is_config_true {name} {
 111        global repo_config
 112        if {[catch {set v $repo_config($name)}]} {
 113                return 0
 114        } elseif {$v eq {true} || $v eq {1} || $v eq {yes}} {
 115                return 1
 116        } else {
 117                return 0
 118        }
 119}
 120
 121proc load_config {include_global} {
 122        global repo_config global_config default_config
 123
 124        array unset global_config
 125        if {$include_global} {
 126                catch {
 127                        set fd_rc [open "| git repo-config --global --list" r]
 128                        while {[gets $fd_rc line] >= 0} {
 129                                if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
 130                                        if {[is_many_config $name]} {
 131                                                lappend global_config($name) $value
 132                                        } else {
 133                                                set global_config($name) $value
 134                                        }
 135                                }
 136                        }
 137                        close $fd_rc
 138                }
 139        }
 140
 141        array unset repo_config
 142        catch {
 143                set fd_rc [open "| git repo-config --list" r]
 144                while {[gets $fd_rc line] >= 0} {
 145                        if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
 146                                if {[is_many_config $name]} {
 147                                        lappend repo_config($name) $value
 148                                } else {
 149                                        set repo_config($name) $value
 150                                }
 151                        }
 152                }
 153                close $fd_rc
 154        }
 155
 156        foreach name [array names default_config] {
 157                if {[catch {set v $global_config($name)}]} {
 158                        set global_config($name) $default_config($name)
 159                }
 160                if {[catch {set v $repo_config($name)}]} {
 161                        set repo_config($name) $default_config($name)
 162                }
 163        }
 164}
 165
 166proc save_config {} {
 167        global default_config font_descs
 168        global repo_config global_config
 169        global repo_config_new global_config_new
 170
 171        foreach option $font_descs {
 172                set name [lindex $option 0]
 173                set font [lindex $option 1]
 174                font configure $font \
 175                        -family $global_config_new(gui.$font^^family) \
 176                        -size $global_config_new(gui.$font^^size)
 177                font configure ${font}bold \
 178                        -family $global_config_new(gui.$font^^family) \
 179                        -size $global_config_new(gui.$font^^size)
 180                set global_config_new(gui.$name) [font configure $font]
 181                unset global_config_new(gui.$font^^family)
 182                unset global_config_new(gui.$font^^size)
 183        }
 184
 185        foreach name [array names default_config] {
 186                set value $global_config_new($name)
 187                if {$value ne $global_config($name)} {
 188                        if {$value eq $default_config($name)} {
 189                                catch {exec git repo-config --global --unset $name}
 190                        } else {
 191                                regsub -all "\[{}\]" $value {"} value
 192                                exec git repo-config --global $name $value
 193                        }
 194                        set global_config($name) $value
 195                        if {$value eq $repo_config($name)} {
 196                                catch {exec git repo-config --unset $name}
 197                                set repo_config($name) $value
 198                        }
 199                }
 200        }
 201
 202        foreach name [array names default_config] {
 203                set value $repo_config_new($name)
 204                if {$value ne $repo_config($name)} {
 205                        if {$value eq $global_config($name)} {
 206                                catch {exec git repo-config --unset $name}
 207                        } else {
 208                                regsub -all "\[{}\]" $value {"} value
 209                                exec git repo-config $name $value
 210                        }
 211                        set repo_config($name) $value
 212                }
 213        }
 214}
 215
 216proc error_popup {msg} {
 217        set title [appname]
 218        if {[reponame] ne {}} {
 219                append title " ([reponame])"
 220        }
 221        set cmd [list tk_messageBox \
 222                -icon error \
 223                -type ok \
 224                -title "$title: error" \
 225                -message $msg]
 226        if {[winfo ismapped .]} {
 227                lappend cmd -parent .
 228        }
 229        eval $cmd
 230}
 231
 232proc warn_popup {msg} {
 233        set title [appname]
 234        if {[reponame] ne {}} {
 235                append title " ([reponame])"
 236        }
 237        set cmd [list tk_messageBox \
 238                -icon warning \
 239                -type ok \
 240                -title "$title: warning" \
 241                -message $msg]
 242        if {[winfo ismapped .]} {
 243                lappend cmd -parent .
 244        }
 245        eval $cmd
 246}
 247
 248proc info_popup {msg {parent .}} {
 249        set title [appname]
 250        if {[reponame] ne {}} {
 251                append title " ([reponame])"
 252        }
 253        tk_messageBox \
 254                -parent $parent \
 255                -icon info \
 256                -type ok \
 257                -title $title \
 258                -message $msg
 259}
 260
 261proc ask_popup {msg} {
 262        set title [appname]
 263        if {[reponame] ne {}} {
 264                append title " ([reponame])"
 265        }
 266        return [tk_messageBox \
 267                -parent . \
 268                -icon question \
 269                -type yesno \
 270                -title $title \
 271                -message $msg]
 272}
 273
 274######################################################################
 275##
 276## repository setup
 277
 278if {   [catch {set _gitdir $env(GIT_DIR)}]
 279        && [catch {set _gitdir [exec git rev-parse --git-dir]} err]} {
 280        catch {wm withdraw .}
 281        error_popup "Cannot find the git directory:\n\n$err"
 282        exit 1
 283}
 284if {![file isdirectory $_gitdir] && [is_Cygwin]} {
 285        catch {set _gitdir [exec cygpath --unix $_gitdir]}
 286}
 287if {![file isdirectory $_gitdir]} {
 288        catch {wm withdraw .}
 289        error_popup "Git directory not found:\n\n$_gitdir"
 290        exit 1
 291}
 292if {[lindex [file split $_gitdir] end] ne {.git}} {
 293        catch {wm withdraw .}
 294        error_popup "Cannot use funny .git directory:\n\n$_gitdir"
 295        exit 1
 296}
 297if {[catch {cd [file dirname $_gitdir]} err]} {
 298        catch {wm withdraw .}
 299        error_popup "No working directory [file dirname $_gitdir]:\n\n$err"
 300        exit 1
 301}
 302set _reponame [lindex [file split \
 303        [file normalize [file dirname $_gitdir]]] \
 304        end]
 305
 306set single_commit 0
 307if {[appname] eq {git-citool}} {
 308        set single_commit 1
 309}
 310
 311######################################################################
 312##
 313## task management
 314
 315set rescan_active 0
 316set diff_active 0
 317set last_clicked {}
 318
 319set disable_on_lock [list]
 320set index_lock_type none
 321
 322proc lock_index {type} {
 323        global index_lock_type disable_on_lock
 324
 325        if {$index_lock_type eq {none}} {
 326                set index_lock_type $type
 327                foreach w $disable_on_lock {
 328                        uplevel #0 $w disabled
 329                }
 330                return 1
 331        } elseif {$index_lock_type eq "begin-$type"} {
 332                set index_lock_type $type
 333                return 1
 334        }
 335        return 0
 336}
 337
 338proc unlock_index {} {
 339        global index_lock_type disable_on_lock
 340
 341        set index_lock_type none
 342        foreach w $disable_on_lock {
 343                uplevel #0 $w normal
 344        }
 345}
 346
 347######################################################################
 348##
 349## status
 350
 351proc repository_state {ctvar hdvar mhvar} {
 352        global current_branch
 353        upvar $ctvar ct $hdvar hd $mhvar mh
 354
 355        set mh [list]
 356
 357        if {[catch {set current_branch [exec git symbolic-ref HEAD]}]} {
 358                set current_branch {}
 359        } else {
 360                regsub ^refs/((heads|tags|remotes)/)? \
 361                        $current_branch \
 362                        {} \
 363                        current_branch
 364        }
 365
 366        if {[catch {set hd [exec git rev-parse --verify HEAD]}]} {
 367                set hd {}
 368                set ct initial
 369                return
 370        }
 371
 372        set merge_head [gitdir MERGE_HEAD]
 373        if {[file exists $merge_head]} {
 374                set ct merge
 375                set fd_mh [open $merge_head r]
 376                while {[gets $fd_mh line] >= 0} {
 377                        lappend mh $line
 378                }
 379                close $fd_mh
 380                return
 381        }
 382
 383        set ct normal
 384}
 385
 386proc PARENT {} {
 387        global PARENT empty_tree
 388
 389        set p [lindex $PARENT 0]
 390        if {$p ne {}} {
 391                return $p
 392        }
 393        if {$empty_tree eq {}} {
 394                set empty_tree [exec git mktree << {}]
 395        }
 396        return $empty_tree
 397}
 398
 399proc rescan {after {honor_trustmtime 1}} {
 400        global HEAD PARENT MERGE_HEAD commit_type
 401        global ui_index ui_workdir ui_status_value ui_comm
 402        global rescan_active file_states
 403        global repo_config
 404
 405        if {$rescan_active > 0 || ![lock_index read]} return
 406
 407        repository_state newType newHEAD newMERGE_HEAD
 408        if {[string match amend* $commit_type]
 409                && $newType eq {normal}
 410                && $newHEAD eq $HEAD} {
 411        } else {
 412                set HEAD $newHEAD
 413                set PARENT $newHEAD
 414                set MERGE_HEAD $newMERGE_HEAD
 415                set commit_type $newType
 416        }
 417
 418        array unset file_states
 419
 420        if {![$ui_comm edit modified]
 421                || [string trim [$ui_comm get 0.0 end]] eq {}} {
 422                if {[load_message GITGUI_MSG]} {
 423                } elseif {[load_message MERGE_MSG]} {
 424                } elseif {[load_message SQUASH_MSG]} {
 425                }
 426                $ui_comm edit reset
 427                $ui_comm edit modified false
 428        }
 429
 430        if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
 431                rescan_stage2 {} $after
 432        } else {
 433                set rescan_active 1
 434                set ui_status_value {Refreshing file status...}
 435                set cmd [list git update-index]
 436                lappend cmd -q
 437                lappend cmd --unmerged
 438                lappend cmd --ignore-missing
 439                lappend cmd --refresh
 440                set fd_rf [open "| $cmd" r]
 441                fconfigure $fd_rf -blocking 0 -translation binary
 442                fileevent $fd_rf readable \
 443                        [list rescan_stage2 $fd_rf $after]
 444        }
 445}
 446
 447proc rescan_stage2 {fd after} {
 448        global ui_status_value
 449        global rescan_active buf_rdi buf_rdf buf_rlo
 450
 451        if {$fd ne {}} {
 452                read $fd
 453                if {![eof $fd]} return
 454                close $fd
 455        }
 456
 457        set ls_others [list | git ls-files --others -z \
 458                --exclude-per-directory=.gitignore]
 459        set info_exclude [gitdir info exclude]
 460        if {[file readable $info_exclude]} {
 461                lappend ls_others "--exclude-from=$info_exclude"
 462        }
 463
 464        set buf_rdi {}
 465        set buf_rdf {}
 466        set buf_rlo {}
 467
 468        set rescan_active 3
 469        set ui_status_value {Scanning for modified files ...}
 470        set fd_di [open "| git diff-index --cached -z [PARENT]" r]
 471        set fd_df [open "| git diff-files -z" r]
 472        set fd_lo [open $ls_others r]
 473
 474        fconfigure $fd_di -blocking 0 -translation binary -encoding binary
 475        fconfigure $fd_df -blocking 0 -translation binary -encoding binary
 476        fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
 477        fileevent $fd_di readable [list read_diff_index $fd_di $after]
 478        fileevent $fd_df readable [list read_diff_files $fd_df $after]
 479        fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
 480}
 481
 482proc load_message {file} {
 483        global ui_comm
 484
 485        set f [gitdir $file]
 486        if {[file isfile $f]} {
 487                if {[catch {set fd [open $f r]}]} {
 488                        return 0
 489                }
 490                set content [string trim [read $fd]]
 491                close $fd
 492                regsub -all -line {[ \r\t]+$} $content {} content
 493                $ui_comm delete 0.0 end
 494                $ui_comm insert end $content
 495                return 1
 496        }
 497        return 0
 498}
 499
 500proc read_diff_index {fd after} {
 501        global buf_rdi
 502
 503        append buf_rdi [read $fd]
 504        set c 0
 505        set n [string length $buf_rdi]
 506        while {$c < $n} {
 507                set z1 [string first "\0" $buf_rdi $c]
 508                if {$z1 == -1} break
 509                incr z1
 510                set z2 [string first "\0" $buf_rdi $z1]
 511                if {$z2 == -1} break
 512
 513                incr c
 514                set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
 515                set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
 516                merge_state \
 517                        [encoding convertfrom $p] \
 518                        [lindex $i 4]? \
 519                        [list [lindex $i 0] [lindex $i 2]] \
 520                        [list]
 521                set c $z2
 522                incr c
 523        }
 524        if {$c < $n} {
 525                set buf_rdi [string range $buf_rdi $c end]
 526        } else {
 527                set buf_rdi {}
 528        }
 529
 530        rescan_done $fd buf_rdi $after
 531}
 532
 533proc read_diff_files {fd after} {
 534        global buf_rdf
 535
 536        append buf_rdf [read $fd]
 537        set c 0
 538        set n [string length $buf_rdf]
 539        while {$c < $n} {
 540                set z1 [string first "\0" $buf_rdf $c]
 541                if {$z1 == -1} break
 542                incr z1
 543                set z2 [string first "\0" $buf_rdf $z1]
 544                if {$z2 == -1} break
 545
 546                incr c
 547                set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
 548                set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
 549                merge_state \
 550                        [encoding convertfrom $p] \
 551                        ?[lindex $i 4] \
 552                        [list] \
 553                        [list [lindex $i 0] [lindex $i 2]]
 554                set c $z2
 555                incr c
 556        }
 557        if {$c < $n} {
 558                set buf_rdf [string range $buf_rdf $c end]
 559        } else {
 560                set buf_rdf {}
 561        }
 562
 563        rescan_done $fd buf_rdf $after
 564}
 565
 566proc read_ls_others {fd after} {
 567        global buf_rlo
 568
 569        append buf_rlo [read $fd]
 570        set pck [split $buf_rlo "\0"]
 571        set buf_rlo [lindex $pck end]
 572        foreach p [lrange $pck 0 end-1] {
 573                merge_state [encoding convertfrom $p] ?O
 574        }
 575        rescan_done $fd buf_rlo $after
 576}
 577
 578proc rescan_done {fd buf after} {
 579        global rescan_active
 580        global file_states repo_config
 581        upvar $buf to_clear
 582
 583        if {![eof $fd]} return
 584        set to_clear {}
 585        close $fd
 586        if {[incr rescan_active -1] > 0} return
 587
 588        prune_selection
 589        unlock_index
 590        display_all_files
 591        reshow_diff
 592        uplevel #0 $after
 593}
 594
 595proc prune_selection {} {
 596        global file_states selected_paths
 597
 598        foreach path [array names selected_paths] {
 599                if {[catch {set still_here $file_states($path)}]} {
 600                        unset selected_paths($path)
 601                }
 602        }
 603}
 604
 605######################################################################
 606##
 607## diff
 608
 609proc clear_diff {} {
 610        global ui_diff current_diff_path current_diff_header
 611        global ui_index ui_workdir
 612
 613        $ui_diff conf -state normal
 614        $ui_diff delete 0.0 end
 615        $ui_diff conf -state disabled
 616
 617        set current_diff_path {}
 618        set current_diff_header {}
 619
 620        $ui_index tag remove in_diff 0.0 end
 621        $ui_workdir tag remove in_diff 0.0 end
 622}
 623
 624proc reshow_diff {} {
 625        global ui_status_value file_states file_lists
 626        global current_diff_path current_diff_side
 627
 628        set p $current_diff_path
 629        if {$p eq {}
 630                || $current_diff_side eq {}
 631                || [catch {set s $file_states($p)}]
 632                || [lsearch -sorted -exact $file_lists($current_diff_side) $p] == -1} {
 633                clear_diff
 634        } else {
 635                show_diff $p $current_diff_side
 636        }
 637}
 638
 639proc handle_empty_diff {} {
 640        global current_diff_path file_states file_lists
 641
 642        set path $current_diff_path
 643        set s $file_states($path)
 644        if {[lindex $s 0] ne {_M}} return
 645
 646        info_popup "No differences detected.
 647
 648[short_path $path] has no changes.
 649
 650The modification date of this file was updated
 651by another application, but the content within
 652the file was not changed.
 653
 654A rescan will be automatically started to find
 655other files which may have the same state."
 656
 657        clear_diff
 658        display_file $path __
 659        rescan {set ui_status_value {Ready.}} 0
 660}
 661
 662proc show_diff {path w {lno {}}} {
 663        global file_states file_lists
 664        global is_3way_diff diff_active repo_config
 665        global ui_diff ui_status_value ui_index ui_workdir
 666        global current_diff_path current_diff_side current_diff_header
 667
 668        if {$diff_active || ![lock_index read]} return
 669
 670        clear_diff
 671        if {$lno == {}} {
 672                set lno [lsearch -sorted -exact $file_lists($w) $path]
 673                if {$lno >= 0} {
 674                        incr lno
 675                }
 676        }
 677        if {$lno >= 1} {
 678                $w tag add in_diff $lno.0 [expr {$lno + 1}].0
 679        }
 680
 681        set s $file_states($path)
 682        set m [lindex $s 0]
 683        set is_3way_diff 0
 684        set diff_active 1
 685        set current_diff_path $path
 686        set current_diff_side $w
 687        set current_diff_header {}
 688        set ui_status_value "Loading diff of [escape_path $path]..."
 689
 690        # - Git won't give us the diff, there's nothing to compare to!
 691        #
 692        if {$m eq {_O}} {
 693                set max_sz [expr {128 * 1024}]
 694                if {[catch {
 695                                set fd [open $path r]
 696                                set content [read $fd $max_sz]
 697                                close $fd
 698                                set sz [file size $path]
 699                        } err ]} {
 700                        set diff_active 0
 701                        unlock_index
 702                        set ui_status_value "Unable to display [escape_path $path]"
 703                        error_popup "Error loading file:\n\n$err"
 704                        return
 705                }
 706                $ui_diff conf -state normal
 707                if {![catch {set type [exec file $path]}]} {
 708                        set n [string length $path]
 709                        if {[string equal -length $n $path $type]} {
 710                                set type [string range $type $n end]
 711                                regsub {^:?\s*} $type {} type
 712                        }
 713                        $ui_diff insert end "* $type\n" d_@
 714                }
 715                if {[string first "\0" $content] != -1} {
 716                        $ui_diff insert end \
 717                                "* Binary file (not showing content)." \
 718                                d_@
 719                } else {
 720                        if {$sz > $max_sz} {
 721                                $ui_diff insert end \
 722"* Untracked file is $sz bytes.
 723* Showing only first $max_sz bytes.
 724" d_@
 725                        }
 726                        $ui_diff insert end $content
 727                        if {$sz > $max_sz} {
 728                                $ui_diff insert end "
 729* Untracked file clipped here by [appname].
 730* To see the entire file, use an external editor.
 731" d_@
 732                        }
 733                }
 734                $ui_diff conf -state disabled
 735                set diff_active 0
 736                unlock_index
 737                set ui_status_value {Ready.}
 738                return
 739        }
 740
 741        set cmd [list | git]
 742        if {$w eq $ui_index} {
 743                lappend cmd diff-index
 744                lappend cmd --cached
 745        } elseif {$w eq $ui_workdir} {
 746                if {[string index $m 0] eq {U}} {
 747                        lappend cmd diff
 748                } else {
 749                        lappend cmd diff-files
 750                }
 751        }
 752
 753        lappend cmd -p
 754        lappend cmd --no-color
 755        if {$repo_config(gui.diffcontext) > 0} {
 756                lappend cmd "-U$repo_config(gui.diffcontext)"
 757        }
 758        if {$w eq $ui_index} {
 759                lappend cmd [PARENT]
 760        }
 761        lappend cmd --
 762        lappend cmd $path
 763
 764        if {[catch {set fd [open $cmd r]} err]} {
 765                set diff_active 0
 766                unlock_index
 767                set ui_status_value "Unable to display [escape_path $path]"
 768                error_popup "Error loading diff:\n\n$err"
 769                return
 770        }
 771
 772        fconfigure $fd \
 773                -blocking 0 \
 774                -encoding binary \
 775                -translation binary
 776        fileevent $fd readable [list read_diff $fd]
 777}
 778
 779proc read_diff {fd} {
 780        global ui_diff ui_status_value diff_active
 781        global is_3way_diff current_diff_header
 782
 783        $ui_diff conf -state normal
 784        while {[gets $fd line] >= 0} {
 785                # -- Cleanup uninteresting diff header lines.
 786                #
 787                if {   [string match {diff --git *}      $line]
 788                        || [string match {diff --cc *}       $line]
 789                        || [string match {diff --combined *} $line]
 790                        || [string match {--- *}             $line]
 791                        || [string match {+++ *}             $line]} {
 792                        append current_diff_header $line "\n"
 793                        continue
 794                }
 795                if {[string match {index *} $line]} continue
 796                if {$line eq {deleted file mode 120000}} {
 797                        set line "deleted symlink"
 798                }
 799
 800                # -- Automatically detect if this is a 3 way diff.
 801                #
 802                if {[string match {@@@ *} $line]} {set is_3way_diff 1}
 803
 804                if {[string match {mode *} $line]
 805                        || [string match {new file *} $line]
 806                        || [string match {deleted file *} $line]
 807                        || [string match {Binary files * and * differ} $line]
 808                        || $line eq {\ No newline at end of file}
 809                        || [regexp {^\* Unmerged path } $line]} {
 810                        set tags {}
 811                } elseif {$is_3way_diff} {
 812                        set op [string range $line 0 1]
 813                        switch -- $op {
 814                        {  } {set tags {}}
 815                        {@@} {set tags d_@}
 816                        { +} {set tags d_s+}
 817                        { -} {set tags d_s-}
 818                        {+ } {set tags d_+s}
 819                        {- } {set tags d_-s}
 820                        {--} {set tags d_--}
 821                        {++} {
 822                                if {[regexp {^\+\+([<>]{7} |={7})} $line _g op]} {
 823                                        set line [string replace $line 0 1 {  }]
 824                                        set tags d$op
 825                                } else {
 826                                        set tags d_++
 827                                }
 828                        }
 829                        default {
 830                                puts "error: Unhandled 3 way diff marker: {$op}"
 831                                set tags {}
 832                        }
 833                        }
 834                } else {
 835                        set op [string index $line 0]
 836                        switch -- $op {
 837                        { } {set tags {}}
 838                        {@} {set tags d_@}
 839                        {-} {set tags d_-}
 840                        {+} {
 841                                if {[regexp {^\+([<>]{7} |={7})} $line _g op]} {
 842                                        set line [string replace $line 0 0 { }]
 843                                        set tags d$op
 844                                } else {
 845                                        set tags d_+
 846                                }
 847                        }
 848                        default {
 849                                puts "error: Unhandled 2 way diff marker: {$op}"
 850                                set tags {}
 851                        }
 852                        }
 853                }
 854                $ui_diff insert end $line $tags
 855                if {[string index $line end] eq "\r"} {
 856                        $ui_diff tag add d_cr {end - 2c}
 857                }
 858                $ui_diff insert end "\n" $tags
 859        }
 860        $ui_diff conf -state disabled
 861
 862        if {[eof $fd]} {
 863                close $fd
 864                set diff_active 0
 865                unlock_index
 866                set ui_status_value {Ready.}
 867
 868                if {[$ui_diff index end] eq {2.0}} {
 869                        handle_empty_diff
 870                }
 871        }
 872}
 873
 874proc apply_hunk {x y} {
 875        global current_diff_path current_diff_header current_diff_side
 876        global ui_diff ui_index file_states
 877
 878        if {$current_diff_path eq {} || $current_diff_header eq {}} return
 879        if {![lock_index apply_hunk]} return
 880
 881        set apply_cmd {git apply --cached --whitespace=nowarn}
 882        set mi [lindex $file_states($current_diff_path) 0]
 883        if {$current_diff_side eq $ui_index} {
 884                set mode unstage
 885                lappend apply_cmd --reverse
 886                if {[string index $mi 0] ne {M}} {
 887                        unlock_index
 888                        return
 889                }
 890        } else {
 891                set mode stage
 892                if {[string index $mi 1] ne {M}} {
 893                        unlock_index
 894                        return
 895                }
 896        }
 897
 898        set s_lno [lindex [split [$ui_diff index @$x,$y] .] 0]
 899        set s_lno [$ui_diff search -backwards -regexp ^@@ $s_lno.0 0.0]
 900        if {$s_lno eq {}} {
 901                unlock_index
 902                return
 903        }
 904
 905        set e_lno [$ui_diff search -forwards -regexp ^@@ "$s_lno + 1 lines" end]
 906        if {$e_lno eq {}} {
 907                set e_lno end
 908        }
 909
 910        if {[catch {
 911                set p [open "| $apply_cmd" w]
 912                fconfigure $p -translation binary -encoding binary
 913                puts -nonewline $p $current_diff_header
 914                puts -nonewline $p [$ui_diff get $s_lno $e_lno]
 915                close $p} err]} {
 916                error_popup "Failed to $mode selected hunk.\n\n$err"
 917                unlock_index
 918                return
 919        }
 920
 921        $ui_diff conf -state normal
 922        $ui_diff delete $s_lno $e_lno
 923        $ui_diff conf -state disabled
 924
 925        if {[$ui_diff get 1.0 end] eq "\n"} {
 926                set o _
 927        } else {
 928                set o ?
 929        }
 930
 931        if {$current_diff_side eq $ui_index} {
 932                set mi ${o}M
 933        } elseif {[string index $mi 0] eq {_}} {
 934                set mi M$o
 935        } else {
 936                set mi ?$o
 937        }
 938        unlock_index
 939        display_file $current_diff_path $mi
 940        if {$o eq {_}} {
 941                clear_diff
 942        }
 943}
 944
 945######################################################################
 946##
 947## commit
 948
 949proc load_last_commit {} {
 950        global HEAD PARENT MERGE_HEAD commit_type ui_comm
 951        global repo_config
 952
 953        if {[llength $PARENT] == 0} {
 954                error_popup {There is nothing to amend.
 955
 956You are about to create the initial commit.
 957There is no commit before this to amend.
 958}
 959                return
 960        }
 961
 962        repository_state curType curHEAD curMERGE_HEAD
 963        if {$curType eq {merge}} {
 964                error_popup {Cannot amend while merging.
 965
 966You are currently in the middle of a merge that
 967has not been fully completed.  You cannot amend
 968the prior commit unless you first abort the
 969current merge activity.
 970}
 971                return
 972        }
 973
 974        set msg {}
 975        set parents [list]
 976        if {[catch {
 977                        set fd [open "| git cat-file commit $curHEAD" r]
 978                        fconfigure $fd -encoding binary -translation lf
 979                        if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
 980                                set enc utf-8
 981                        }
 982                        while {[gets $fd line] > 0} {
 983                                if {[string match {parent *} $line]} {
 984                                        lappend parents [string range $line 7 end]
 985                                } elseif {[string match {encoding *} $line]} {
 986                                        set enc [string tolower [string range $line 9 end]]
 987                                }
 988                        }
 989                        fconfigure $fd -encoding $enc
 990                        set msg [string trim [read $fd]]
 991                        close $fd
 992                } err]} {
 993                error_popup "Error loading commit data for amend:\n\n$err"
 994                return
 995        }
 996
 997        set HEAD $curHEAD
 998        set PARENT $parents
 999        set MERGE_HEAD [list]
1000        switch -- [llength $parents] {
1001        0       {set commit_type amend-initial}
1002        1       {set commit_type amend}
1003        default {set commit_type amend-merge}
1004        }
1005
1006        $ui_comm delete 0.0 end
1007        $ui_comm insert end $msg
1008        $ui_comm edit reset
1009        $ui_comm edit modified false
1010        rescan {set ui_status_value {Ready.}}
1011}
1012
1013proc create_new_commit {} {
1014        global commit_type ui_comm
1015
1016        set commit_type normal
1017        $ui_comm delete 0.0 end
1018        $ui_comm edit reset
1019        $ui_comm edit modified false
1020        rescan {set ui_status_value {Ready.}}
1021}
1022
1023set GIT_COMMITTER_IDENT {}
1024
1025proc committer_ident {} {
1026        global GIT_COMMITTER_IDENT
1027
1028        if {$GIT_COMMITTER_IDENT eq {}} {
1029                if {[catch {set me [exec git var GIT_COMMITTER_IDENT]} err]} {
1030                        error_popup "Unable to obtain your identity:\n\n$err"
1031                        return {}
1032                }
1033                if {![regexp {^(.*) [0-9]+ [-+0-9]+$} \
1034                        $me me GIT_COMMITTER_IDENT]} {
1035                        error_popup "Invalid GIT_COMMITTER_IDENT:\n\n$me"
1036                        return {}
1037                }
1038        }
1039
1040        return $GIT_COMMITTER_IDENT
1041}
1042
1043proc commit_tree {} {
1044        global HEAD commit_type file_states ui_comm repo_config
1045        global ui_status_value pch_error
1046
1047        if {[committer_ident] eq {}} return
1048        if {![lock_index update]} return
1049
1050        # -- Our in memory state should match the repository.
1051        #
1052        repository_state curType curHEAD curMERGE_HEAD
1053        if {[string match amend* $commit_type]
1054                && $curType eq {normal}
1055                && $curHEAD eq $HEAD} {
1056        } elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
1057                info_popup {Last scanned state does not match repository state.
1058
1059Another Git program has modified this repository
1060since the last scan.  A rescan must be performed
1061before another commit can be created.
1062
1063The rescan will be automatically started now.
1064}
1065                unlock_index
1066                rescan {set ui_status_value {Ready.}}
1067                return
1068        }
1069
1070        # -- At least one file should differ in the index.
1071        #
1072        set files_ready 0
1073        foreach path [array names file_states] {
1074                switch -glob -- [lindex $file_states($path) 0] {
1075                _? {continue}
1076                A? -
1077                D? -
1078                M? {set files_ready 1}
1079                U? {
1080                        error_popup "Unmerged files cannot be committed.
1081
1082File [short_path $path] has merge conflicts.
1083You must resolve them and add the file before committing.
1084"
1085                        unlock_index
1086                        return
1087                }
1088                default {
1089                        error_popup "Unknown file state [lindex $s 0] detected.
1090
1091File [short_path $path] cannot be committed by this program.
1092"
1093                }
1094                }
1095        }
1096        if {!$files_ready} {
1097                info_popup {No changes to commit.
1098
1099You must add at least 1 file before you can commit.
1100}
1101                unlock_index
1102                return
1103        }
1104
1105        # -- A message is required.
1106        #
1107        set msg [string trim [$ui_comm get 1.0 end]]
1108        regsub -all -line {[ \t\r]+$} $msg {} msg
1109        if {$msg eq {}} {
1110                error_popup {Please supply a commit message.
1111
1112A good commit message has the following format:
1113
1114- First line: Describe in one sentance what you did.
1115- Second line: Blank
1116- Remaining lines: Describe why this change is good.
1117}
1118                unlock_index
1119                return
1120        }
1121
1122        # -- Run the pre-commit hook.
1123        #
1124        set pchook [gitdir hooks pre-commit]
1125
1126        # On Cygwin [file executable] might lie so we need to ask
1127        # the shell if the hook is executable.  Yes that's annoying.
1128        #
1129        if {[is_Cygwin] && [file isfile $pchook]} {
1130                set pchook [list sh -c [concat \
1131                        "if test -x \"$pchook\";" \
1132                        "then exec \"$pchook\" 2>&1;" \
1133                        "fi"]]
1134        } elseif {[file executable $pchook]} {
1135                set pchook [list $pchook |& cat]
1136        } else {
1137                commit_writetree $curHEAD $msg
1138                return
1139        }
1140
1141        set ui_status_value {Calling pre-commit hook...}
1142        set pch_error {}
1143        set fd_ph [open "| $pchook" r]
1144        fconfigure $fd_ph -blocking 0 -translation binary
1145        fileevent $fd_ph readable \
1146                [list commit_prehook_wait $fd_ph $curHEAD $msg]
1147}
1148
1149proc commit_prehook_wait {fd_ph curHEAD msg} {
1150        global pch_error ui_status_value
1151
1152        append pch_error [read $fd_ph]
1153        fconfigure $fd_ph -blocking 1
1154        if {[eof $fd_ph]} {
1155                if {[catch {close $fd_ph}]} {
1156                        set ui_status_value {Commit declined by pre-commit hook.}
1157                        hook_failed_popup pre-commit $pch_error
1158                        unlock_index
1159                } else {
1160                        commit_writetree $curHEAD $msg
1161                }
1162                set pch_error {}
1163                return
1164        }
1165        fconfigure $fd_ph -blocking 0
1166}
1167
1168proc commit_writetree {curHEAD msg} {
1169        global ui_status_value
1170
1171        set ui_status_value {Committing changes...}
1172        set fd_wt [open "| git write-tree" r]
1173        fileevent $fd_wt readable \
1174                [list commit_committree $fd_wt $curHEAD $msg]
1175}
1176
1177proc commit_committree {fd_wt curHEAD msg} {
1178        global HEAD PARENT MERGE_HEAD commit_type
1179        global single_commit all_heads current_branch
1180        global ui_status_value ui_comm selected_commit_type
1181        global file_states selected_paths rescan_active
1182        global repo_config
1183
1184        gets $fd_wt tree_id
1185        if {$tree_id eq {} || [catch {close $fd_wt} err]} {
1186                error_popup "write-tree failed:\n\n$err"
1187                set ui_status_value {Commit failed.}
1188                unlock_index
1189                return
1190        }
1191
1192        # -- Build the message.
1193        #
1194        set msg_p [gitdir COMMIT_EDITMSG]
1195        set msg_wt [open $msg_p w]
1196        if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
1197                set enc utf-8
1198        }
1199        fconfigure $msg_wt -encoding $enc -translation binary
1200        puts -nonewline $msg_wt $msg
1201        close $msg_wt
1202
1203        # -- Create the commit.
1204        #
1205        set cmd [list git commit-tree $tree_id]
1206        set parents [concat $PARENT $MERGE_HEAD]
1207        if {[llength $parents] > 0} {
1208                foreach p $parents {
1209                        lappend cmd -p $p
1210                }
1211        } else {
1212                # git commit-tree writes to stderr during initial commit.
1213                lappend cmd 2>/dev/null
1214        }
1215        lappend cmd <$msg_p
1216        if {[catch {set cmt_id [eval exec $cmd]} err]} {
1217                error_popup "commit-tree failed:\n\n$err"
1218                set ui_status_value {Commit failed.}
1219                unlock_index
1220                return
1221        }
1222
1223        # -- Update the HEAD ref.
1224        #
1225        set reflogm commit
1226        if {$commit_type ne {normal}} {
1227                append reflogm " ($commit_type)"
1228        }
1229        set i [string first "\n" $msg]
1230        if {$i >= 0} {
1231                append reflogm {: } [string range $msg 0 [expr {$i - 1}]]
1232        } else {
1233                append reflogm {: } $msg
1234        }
1235        set cmd [list git update-ref -m $reflogm HEAD $cmt_id $curHEAD]
1236        if {[catch {eval exec $cmd} err]} {
1237                error_popup "update-ref failed:\n\n$err"
1238                set ui_status_value {Commit failed.}
1239                unlock_index
1240                return
1241        }
1242
1243        # -- Make sure our current branch exists.
1244        #
1245        if {$commit_type eq {initial}} {
1246                lappend all_heads $current_branch
1247                set all_heads [lsort -unique $all_heads]
1248                populate_branch_menu
1249        }
1250
1251        # -- Cleanup after ourselves.
1252        #
1253        catch {file delete $msg_p}
1254        catch {file delete [gitdir MERGE_HEAD]}
1255        catch {file delete [gitdir MERGE_MSG]}
1256        catch {file delete [gitdir SQUASH_MSG]}
1257        catch {file delete [gitdir GITGUI_MSG]}
1258
1259        # -- Let rerere do its thing.
1260        #
1261        if {[file isdirectory [gitdir rr-cache]]} {
1262                catch {exec git rerere}
1263        }
1264
1265        # -- Run the post-commit hook.
1266        #
1267        set pchook [gitdir hooks post-commit]
1268        if {[is_Cygwin] && [file isfile $pchook]} {
1269                set pchook [list sh -c [concat \
1270                        "if test -x \"$pchook\";" \
1271                        "then exec \"$pchook\";" \
1272                        "fi"]]
1273        } elseif {![file executable $pchook]} {
1274                set pchook {}
1275        }
1276        if {$pchook ne {}} {
1277                catch {exec $pchook &}
1278        }
1279
1280        $ui_comm delete 0.0 end
1281        $ui_comm edit reset
1282        $ui_comm edit modified false
1283
1284        if {$single_commit} do_quit
1285
1286        # -- Update in memory status
1287        #
1288        set selected_commit_type new
1289        set commit_type normal
1290        set HEAD $cmt_id
1291        set PARENT $cmt_id
1292        set MERGE_HEAD [list]
1293
1294        foreach path [array names file_states] {
1295                set s $file_states($path)
1296                set m [lindex $s 0]
1297                switch -glob -- $m {
1298                _O -
1299                _M -
1300                _D {continue}
1301                __ -
1302                A_ -
1303                M_ -
1304                D_ {
1305                        unset file_states($path)
1306                        catch {unset selected_paths($path)}
1307                }
1308                DO {
1309                        set file_states($path) [list _O [lindex $s 1] {} {}]
1310                }
1311                AM -
1312                AD -
1313                MM -
1314                MD {
1315                        set file_states($path) [list \
1316                                _[string index $m 1] \
1317                                [lindex $s 1] \
1318                                [lindex $s 3] \
1319                                {}]
1320                }
1321                }
1322        }
1323
1324        display_all_files
1325        unlock_index
1326        reshow_diff
1327        set ui_status_value \
1328                "Changes committed as [string range $cmt_id 0 7]."
1329}
1330
1331######################################################################
1332##
1333## fetch push
1334
1335proc fetch_from {remote} {
1336        set w [new_console \
1337                "fetch $remote" \
1338                "Fetching new changes from $remote"]
1339        set cmd [list git fetch]
1340        lappend cmd $remote
1341        console_exec $w $cmd console_done
1342}
1343
1344proc push_to {remote} {
1345        set w [new_console \
1346                "push $remote" \
1347                "Pushing changes to $remote"]
1348        set cmd [list git push]
1349        lappend cmd -v
1350        lappend cmd $remote
1351        console_exec $w $cmd console_done
1352}
1353
1354######################################################################
1355##
1356## ui helpers
1357
1358proc mapicon {w state path} {
1359        global all_icons
1360
1361        if {[catch {set r $all_icons($state$w)}]} {
1362                puts "error: no icon for $w state={$state} $path"
1363                return file_plain
1364        }
1365        return $r
1366}
1367
1368proc mapdesc {state path} {
1369        global all_descs
1370
1371        if {[catch {set r $all_descs($state)}]} {
1372                puts "error: no desc for state={$state} $path"
1373                return $state
1374        }
1375        return $r
1376}
1377
1378proc escape_path {path} {
1379        regsub -all "\n" $path "\\n" path
1380        return $path
1381}
1382
1383proc short_path {path} {
1384        return [escape_path [lindex [file split $path] end]]
1385}
1386
1387set next_icon_id 0
1388set null_sha1 [string repeat 0 40]
1389
1390proc merge_state {path new_state {head_info {}} {index_info {}}} {
1391        global file_states next_icon_id null_sha1
1392
1393        set s0 [string index $new_state 0]
1394        set s1 [string index $new_state 1]
1395
1396        if {[catch {set info $file_states($path)}]} {
1397                set state __
1398                set icon n[incr next_icon_id]
1399        } else {
1400                set state [lindex $info 0]
1401                set icon [lindex $info 1]
1402                if {$head_info eq {}}  {set head_info  [lindex $info 2]}
1403                if {$index_info eq {}} {set index_info [lindex $info 3]}
1404        }
1405
1406        if     {$s0 eq {?}} {set s0 [string index $state 0]} \
1407        elseif {$s0 eq {_}} {set s0 _}
1408
1409        if     {$s1 eq {?}} {set s1 [string index $state 1]} \
1410        elseif {$s1 eq {_}} {set s1 _}
1411
1412        if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
1413                set head_info [list 0 $null_sha1]
1414        } elseif {$s0 ne {_} && [string index $state 0] eq {_}
1415                && $head_info eq {}} {
1416                set head_info $index_info
1417        }
1418
1419        set file_states($path) [list $s0$s1 $icon \
1420                $head_info $index_info \
1421                ]
1422        return $state
1423}
1424
1425proc display_file_helper {w path icon_name old_m new_m} {
1426        global file_lists
1427
1428        if {$new_m eq {_}} {
1429                set lno [lsearch -sorted -exact $file_lists($w) $path]
1430                if {$lno >= 0} {
1431                        set file_lists($w) [lreplace $file_lists($w) $lno $lno]
1432                        incr lno
1433                        $w conf -state normal
1434                        $w delete $lno.0 [expr {$lno + 1}].0
1435                        $w conf -state disabled
1436                }
1437        } elseif {$old_m eq {_} && $new_m ne {_}} {
1438                lappend file_lists($w) $path
1439                set file_lists($w) [lsort -unique $file_lists($w)]
1440                set lno [lsearch -sorted -exact $file_lists($w) $path]
1441                incr lno
1442                $w conf -state normal
1443                $w image create $lno.0 \
1444                        -align center -padx 5 -pady 1 \
1445                        -name $icon_name \
1446                        -image [mapicon $w $new_m $path]
1447                $w insert $lno.1 "[escape_path $path]\n"
1448                $w conf -state disabled
1449        } elseif {$old_m ne $new_m} {
1450                $w conf -state normal
1451                $w image conf $icon_name -image [mapicon $w $new_m $path]
1452                $w conf -state disabled
1453        }
1454}
1455
1456proc display_file {path state} {
1457        global file_states selected_paths
1458        global ui_index ui_workdir
1459
1460        set old_m [merge_state $path $state]
1461        set s $file_states($path)
1462        set new_m [lindex $s 0]
1463        set icon_name [lindex $s 1]
1464
1465        set o [string index $old_m 0]
1466        set n [string index $new_m 0]
1467        if {$o eq {U}} {
1468                set o _
1469        }
1470        if {$n eq {U}} {
1471                set n _
1472        }
1473        display_file_helper     $ui_index $path $icon_name $o $n
1474
1475        if {[string index $old_m 0] eq {U}} {
1476                set o U
1477        } else {
1478                set o [string index $old_m 1]
1479        }
1480        if {[string index $new_m 0] eq {U}} {
1481                set n U
1482        } else {
1483                set n [string index $new_m 1]
1484        }
1485        display_file_helper     $ui_workdir $path $icon_name $o $n
1486
1487        if {$new_m eq {__}} {
1488                unset file_states($path)
1489                catch {unset selected_paths($path)}
1490        }
1491}
1492
1493proc display_all_files_helper {w path icon_name m} {
1494        global file_lists
1495
1496        lappend file_lists($w) $path
1497        set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
1498        $w image create end \
1499                -align center -padx 5 -pady 1 \
1500                -name $icon_name \
1501                -image [mapicon $w $m $path]
1502        $w insert end "[escape_path $path]\n"
1503}
1504
1505proc display_all_files {} {
1506        global ui_index ui_workdir
1507        global file_states file_lists
1508        global last_clicked
1509
1510        $ui_index conf -state normal
1511        $ui_workdir conf -state normal
1512
1513        $ui_index delete 0.0 end
1514        $ui_workdir delete 0.0 end
1515        set last_clicked {}
1516
1517        set file_lists($ui_index) [list]
1518        set file_lists($ui_workdir) [list]
1519
1520        foreach path [lsort [array names file_states]] {
1521                set s $file_states($path)
1522                set m [lindex $s 0]
1523                set icon_name [lindex $s 1]
1524
1525                set s [string index $m 0]
1526                if {$s ne {U} && $s ne {_}} {
1527                        display_all_files_helper $ui_index $path \
1528                                $icon_name $s
1529                }
1530
1531                if {[string index $m 0] eq {U}} {
1532                        set s U
1533                } else {
1534                        set s [string index $m 1]
1535                }
1536                if {$s ne {_}} {
1537                        display_all_files_helper $ui_workdir $path \
1538                                $icon_name $s
1539                }
1540        }
1541
1542        $ui_index conf -state disabled
1543        $ui_workdir conf -state disabled
1544}
1545
1546proc update_indexinfo {msg pathList after} {
1547        global update_index_cp ui_status_value
1548
1549        if {![lock_index update]} return
1550
1551        set update_index_cp 0
1552        set pathList [lsort $pathList]
1553        set totalCnt [llength $pathList]
1554        set batch [expr {int($totalCnt * .01) + 1}]
1555        if {$batch > 25} {set batch 25}
1556
1557        set ui_status_value [format \
1558                "$msg... %i/%i files (%.2f%%)" \
1559                $update_index_cp \
1560                $totalCnt \
1561                0.0]
1562        set fd [open "| git update-index -z --index-info" w]
1563        fconfigure $fd \
1564                -blocking 0 \
1565                -buffering full \
1566                -buffersize 512 \
1567                -encoding binary \
1568                -translation binary
1569        fileevent $fd writable [list \
1570                write_update_indexinfo \
1571                $fd \
1572                $pathList \
1573                $totalCnt \
1574                $batch \
1575                $msg \
1576                $after \
1577                ]
1578}
1579
1580proc write_update_indexinfo {fd pathList totalCnt batch msg after} {
1581        global update_index_cp ui_status_value
1582        global file_states current_diff_path
1583
1584        if {$update_index_cp >= $totalCnt} {
1585                close $fd
1586                unlock_index
1587                uplevel #0 $after
1588                return
1589        }
1590
1591        for {set i $batch} \
1592                {$update_index_cp < $totalCnt && $i > 0} \
1593                {incr i -1} {
1594                set path [lindex $pathList $update_index_cp]
1595                incr update_index_cp
1596
1597                set s $file_states($path)
1598                switch -glob -- [lindex $s 0] {
1599                A? {set new _O}
1600                M? {set new _M}
1601                D_ {set new _D}
1602                D? {set new _?}
1603                ?? {continue}
1604                }
1605                set info [lindex $s 2]
1606                if {$info eq {}} continue
1607
1608                puts -nonewline $fd "$info\t[encoding convertto $path]\0"
1609                display_file $path $new
1610        }
1611
1612        set ui_status_value [format \
1613                "$msg... %i/%i files (%.2f%%)" \
1614                $update_index_cp \
1615                $totalCnt \
1616                [expr {100.0 * $update_index_cp / $totalCnt}]]
1617}
1618
1619proc update_index {msg pathList after} {
1620        global update_index_cp ui_status_value
1621
1622        if {![lock_index update]} return
1623
1624        set update_index_cp 0
1625        set pathList [lsort $pathList]
1626        set totalCnt [llength $pathList]
1627        set batch [expr {int($totalCnt * .01) + 1}]
1628        if {$batch > 25} {set batch 25}
1629
1630        set ui_status_value [format \
1631                "$msg... %i/%i files (%.2f%%)" \
1632                $update_index_cp \
1633                $totalCnt \
1634                0.0]
1635        set fd [open "| git update-index --add --remove -z --stdin" w]
1636        fconfigure $fd \
1637                -blocking 0 \
1638                -buffering full \
1639                -buffersize 512 \
1640                -encoding binary \
1641                -translation binary
1642        fileevent $fd writable [list \
1643                write_update_index \
1644                $fd \
1645                $pathList \
1646                $totalCnt \
1647                $batch \
1648                $msg \
1649                $after \
1650                ]
1651}
1652
1653proc write_update_index {fd pathList totalCnt batch msg after} {
1654        global update_index_cp ui_status_value
1655        global file_states current_diff_path
1656
1657        if {$update_index_cp >= $totalCnt} {
1658                close $fd
1659                unlock_index
1660                uplevel #0 $after
1661                return
1662        }
1663
1664        for {set i $batch} \
1665                {$update_index_cp < $totalCnt && $i > 0} \
1666                {incr i -1} {
1667                set path [lindex $pathList $update_index_cp]
1668                incr update_index_cp
1669
1670                switch -glob -- [lindex $file_states($path) 0] {
1671                AD {set new __}
1672                ?D {set new D_}
1673                _O -
1674                AM {set new A_}
1675                U? {
1676                        if {[file exists $path]} {
1677                                set new M_
1678                        } else {
1679                                set new D_
1680                        }
1681                }
1682                ?M {set new M_}
1683                ?? {continue}
1684                }
1685                puts -nonewline $fd "[encoding convertto $path]\0"
1686                display_file $path $new
1687        }
1688
1689        set ui_status_value [format \
1690                "$msg... %i/%i files (%.2f%%)" \
1691                $update_index_cp \
1692                $totalCnt \
1693                [expr {100.0 * $update_index_cp / $totalCnt}]]
1694}
1695
1696proc checkout_index {msg pathList after} {
1697        global update_index_cp ui_status_value
1698
1699        if {![lock_index update]} return
1700
1701        set update_index_cp 0
1702        set pathList [lsort $pathList]
1703        set totalCnt [llength $pathList]
1704        set batch [expr {int($totalCnt * .01) + 1}]
1705        if {$batch > 25} {set batch 25}
1706
1707        set ui_status_value [format \
1708                "$msg... %i/%i files (%.2f%%)" \
1709                $update_index_cp \
1710                $totalCnt \
1711                0.0]
1712        set cmd [list git checkout-index]
1713        lappend cmd --index
1714        lappend cmd --quiet
1715        lappend cmd --force
1716        lappend cmd -z
1717        lappend cmd --stdin
1718        set fd [open "| $cmd " w]
1719        fconfigure $fd \
1720                -blocking 0 \
1721                -buffering full \
1722                -buffersize 512 \
1723                -encoding binary \
1724                -translation binary
1725        fileevent $fd writable [list \
1726                write_checkout_index \
1727                $fd \
1728                $pathList \
1729                $totalCnt \
1730                $batch \
1731                $msg \
1732                $after \
1733                ]
1734}
1735
1736proc write_checkout_index {fd pathList totalCnt batch msg after} {
1737        global update_index_cp ui_status_value
1738        global file_states current_diff_path
1739
1740        if {$update_index_cp >= $totalCnt} {
1741                close $fd
1742                unlock_index
1743                uplevel #0 $after
1744                return
1745        }
1746
1747        for {set i $batch} \
1748                {$update_index_cp < $totalCnt && $i > 0} \
1749                {incr i -1} {
1750                set path [lindex $pathList $update_index_cp]
1751                incr update_index_cp
1752                switch -glob -- [lindex $file_states($path) 0] {
1753                U? {continue}
1754                ?M -
1755                ?D {
1756                        puts -nonewline $fd "[encoding convertto $path]\0"
1757                        display_file $path ?_
1758                }
1759                }
1760        }
1761
1762        set ui_status_value [format \
1763                "$msg... %i/%i files (%.2f%%)" \
1764                $update_index_cp \
1765                $totalCnt \
1766                [expr {100.0 * $update_index_cp / $totalCnt}]]
1767}
1768
1769######################################################################
1770##
1771## branch management
1772
1773proc is_tracking_branch {name} {
1774        global tracking_branches
1775
1776        if {![catch {set info $tracking_branches($name)}]} {
1777                return 1
1778        }
1779        foreach t [array names tracking_branches] {
1780                if {[string match {*/\*} $t] && [string match $t $name]} {
1781                        return 1
1782                }
1783        }
1784        return 0
1785}
1786
1787proc load_all_heads {} {
1788        global all_heads
1789
1790        set all_heads [list]
1791        set fd [open "| git for-each-ref --format=%(refname) refs/heads" r]
1792        while {[gets $fd line] > 0} {
1793                if {[is_tracking_branch $line]} continue
1794                if {![regsub ^refs/heads/ $line {} name]} continue
1795                lappend all_heads $name
1796        }
1797        close $fd
1798
1799        set all_heads [lsort $all_heads]
1800}
1801
1802proc populate_branch_menu {} {
1803        global all_heads disable_on_lock
1804
1805        set m .mbar.branch
1806        set last [$m index last]
1807        for {set i 0} {$i <= $last} {incr i} {
1808                if {[$m type $i] eq {separator}} {
1809                        $m delete $i last
1810                        set new_dol [list]
1811                        foreach a $disable_on_lock {
1812                                if {[lindex $a 0] ne $m || [lindex $a 2] < $i} {
1813                                        lappend new_dol $a
1814                                }
1815                        }
1816                        set disable_on_lock $new_dol
1817                        break
1818                }
1819        }
1820
1821        if {$all_heads ne {}} {
1822                $m add separator
1823        }
1824        foreach b $all_heads {
1825                $m add radiobutton \
1826                        -label $b \
1827                        -command [list switch_branch $b] \
1828                        -variable current_branch \
1829                        -value $b \
1830                        -font font_ui
1831                lappend disable_on_lock \
1832                        [list $m entryconf [$m index last] -state]
1833        }
1834}
1835
1836proc all_tracking_branches {} {
1837        global tracking_branches
1838
1839        set all_trackings {}
1840        set cmd {}
1841        foreach name [array names tracking_branches] {
1842                if {[regsub {/\*$} $name {} name]} {
1843                        lappend cmd $name
1844                } else {
1845                        regsub ^refs/(heads|remotes)/ $name {} name
1846                        lappend all_trackings $name
1847                }
1848        }
1849
1850        if {$cmd ne {}} {
1851                set fd [open "| git for-each-ref --format=%(refname) $cmd" r]
1852                while {[gets $fd name] > 0} {
1853                        regsub ^refs/(heads|remotes)/ $name {} name
1854                        lappend all_trackings $name
1855                }
1856                close $fd
1857        }
1858
1859        return [lsort -unique $all_trackings]
1860}
1861
1862proc do_create_branch_action {w} {
1863        global all_heads null_sha1 repo_config
1864        global create_branch_checkout create_branch_revtype
1865        global create_branch_head create_branch_trackinghead
1866        global create_branch_name create_branch_revexp
1867
1868        set newbranch $create_branch_name
1869        if {$newbranch eq {}
1870                || $newbranch eq $repo_config(gui.newbranchtemplate)} {
1871                tk_messageBox \
1872                        -icon error \
1873                        -type ok \
1874                        -title [wm title $w] \
1875                        -parent $w \
1876                        -message "Please supply a branch name."
1877                focus $w.desc.name_t
1878                return
1879        }
1880        if {![catch {exec git show-ref --verify -- "refs/heads/$newbranch"}]} {
1881                tk_messageBox \
1882                        -icon error \
1883                        -type ok \
1884                        -title [wm title $w] \
1885                        -parent $w \
1886                        -message "Branch '$newbranch' already exists."
1887                focus $w.desc.name_t
1888                return
1889        }
1890        if {[catch {exec git check-ref-format "heads/$newbranch"}]} {
1891                tk_messageBox \
1892                        -icon error \
1893                        -type ok \
1894                        -title [wm title $w] \
1895                        -parent $w \
1896                        -message "We do not like '$newbranch' as a branch name."
1897                focus $w.desc.name_t
1898                return
1899        }
1900
1901        set rev {}
1902        switch -- $create_branch_revtype {
1903        head {set rev $create_branch_head}
1904        tracking {set rev $create_branch_trackinghead}
1905        expression {set rev $create_branch_revexp}
1906        }
1907        if {[catch {set cmt [exec git rev-parse --verify "${rev}^0"]}]} {
1908                tk_messageBox \
1909                        -icon error \
1910                        -type ok \
1911                        -title [wm title $w] \
1912                        -parent $w \
1913                        -message "Invalid starting revision: $rev"
1914                return
1915        }
1916        set cmd [list git update-ref]
1917        lappend cmd -m
1918        lappend cmd "branch: Created from $rev"
1919        lappend cmd "refs/heads/$newbranch"
1920        lappend cmd $cmt
1921        lappend cmd $null_sha1
1922        if {[catch {eval exec $cmd} err]} {
1923                tk_messageBox \
1924                        -icon error \
1925                        -type ok \
1926                        -title [wm title $w] \
1927                        -parent $w \
1928                        -message "Failed to create '$newbranch'.\n\n$err"
1929                return
1930        }
1931
1932        lappend all_heads $newbranch
1933        set all_heads [lsort $all_heads]
1934        populate_branch_menu
1935        destroy $w
1936        if {$create_branch_checkout} {
1937                switch_branch $newbranch
1938        }
1939}
1940
1941proc radio_selector {varname value args} {
1942        upvar #0 $varname var
1943        set var $value
1944}
1945
1946trace add variable create_branch_head write \
1947        [list radio_selector create_branch_revtype head]
1948trace add variable create_branch_trackinghead write \
1949        [list radio_selector create_branch_revtype tracking]
1950
1951trace add variable delete_branch_head write \
1952        [list radio_selector delete_branch_checktype head]
1953trace add variable delete_branch_trackinghead write \
1954        [list radio_selector delete_branch_checktype tracking]
1955
1956proc do_create_branch {} {
1957        global all_heads current_branch repo_config
1958        global create_branch_checkout create_branch_revtype
1959        global create_branch_head create_branch_trackinghead
1960        global create_branch_name create_branch_revexp
1961
1962        set w .branch_editor
1963        toplevel $w
1964        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
1965
1966        label $w.header -text {Create New Branch} \
1967                -font font_uibold
1968        pack $w.header -side top -fill x
1969
1970        frame $w.buttons
1971        button $w.buttons.create -text Create \
1972                -font font_ui \
1973                -default active \
1974                -command [list do_create_branch_action $w]
1975        pack $w.buttons.create -side right
1976        button $w.buttons.cancel -text {Cancel} \
1977                -font font_ui \
1978                -command [list destroy $w]
1979        pack $w.buttons.cancel -side right -padx 5
1980        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
1981
1982        labelframe $w.desc \
1983                -text {Branch Description} \
1984                -font font_ui
1985        label $w.desc.name_l -text {Name:} -font font_ui
1986        entry $w.desc.name_t \
1987                -borderwidth 1 \
1988                -relief sunken \
1989                -width 40 \
1990                -textvariable create_branch_name \
1991                -font font_ui \
1992                -validate key \
1993                -validatecommand {
1994                        if {%d == 1 && [regexp {[~^:?*\[\0- ]} %S]} {return 0}
1995                        return 1
1996                }
1997        grid $w.desc.name_l $w.desc.name_t -sticky we -padx {0 5}
1998        grid columnconfigure $w.desc 1 -weight 1
1999        pack $w.desc -anchor nw -fill x -pady 5 -padx 5
2000
2001        labelframe $w.from \
2002                -text {Starting Revision} \
2003                -font font_ui
2004        radiobutton $w.from.head_r \
2005                -text {Local Branch:} \
2006                -value head \
2007                -variable create_branch_revtype \
2008                -font font_ui
2009        eval tk_optionMenu $w.from.head_m create_branch_head $all_heads
2010        grid $w.from.head_r $w.from.head_m -sticky w
2011        set all_trackings [all_tracking_branches]
2012        if {$all_trackings ne {}} {
2013                set create_branch_trackinghead [lindex $all_trackings 0]
2014                radiobutton $w.from.tracking_r \
2015                        -text {Tracking Branch:} \
2016                        -value tracking \
2017                        -variable create_branch_revtype \
2018                        -font font_ui
2019                eval tk_optionMenu $w.from.tracking_m \
2020                        create_branch_trackinghead \
2021                        $all_trackings
2022                grid $w.from.tracking_r $w.from.tracking_m -sticky w
2023        }
2024        radiobutton $w.from.exp_r \
2025                -text {Revision Expression:} \
2026                -value expression \
2027                -variable create_branch_revtype \
2028                -font font_ui
2029        entry $w.from.exp_t \
2030                -borderwidth 1 \
2031                -relief sunken \
2032                -width 50 \
2033                -textvariable create_branch_revexp \
2034                -font font_ui \
2035                -validate key \
2036                -validatecommand {
2037                        if {%d == 1 && [regexp {\s} %S]} {return 0}
2038                        if {%d == 1 && [string length %S] > 0} {
2039                                set create_branch_revtype expression
2040                        }
2041                        return 1
2042                }
2043        grid $w.from.exp_r $w.from.exp_t -sticky we -padx {0 5}
2044        grid columnconfigure $w.from 1 -weight 1
2045        pack $w.from -anchor nw -fill x -pady 5 -padx 5
2046
2047        labelframe $w.postActions \
2048                -text {Post Creation Actions} \
2049                -font font_ui
2050        checkbutton $w.postActions.checkout \
2051                -text {Checkout after creation} \
2052                -variable create_branch_checkout \
2053                -font font_ui
2054        pack $w.postActions.checkout -anchor nw
2055        pack $w.postActions -anchor nw -fill x -pady 5 -padx 5
2056
2057        set create_branch_checkout 1
2058        set create_branch_head $current_branch
2059        set create_branch_revtype head
2060        set create_branch_name $repo_config(gui.newbranchtemplate)
2061        set create_branch_revexp {}
2062
2063        bind $w <Visibility> "
2064                grab $w
2065                $w.desc.name_t icursor end
2066                focus $w.desc.name_t
2067        "
2068        bind $w <Key-Escape> "destroy $w"
2069        bind $w <Key-Return> "do_create_branch_action $w;break"
2070        wm title $w "[appname] ([reponame]): Create Branch"
2071        tkwait window $w
2072}
2073
2074proc do_delete_branch_action {w} {
2075        global all_heads
2076        global delete_branch_checktype delete_branch_head delete_branch_trackinghead
2077
2078        set check_rev {}
2079        switch -- $delete_branch_checktype {
2080        head {set check_rev $delete_branch_head}
2081        tracking {set check_rev $delete_branch_trackinghead}
2082        always {set check_rev {:none}}
2083        }
2084        if {$check_rev eq {:none}} {
2085                set check_cmt {}
2086        } elseif {[catch {set check_cmt [exec git rev-parse --verify "${check_rev}^0"]}]} {
2087                tk_messageBox \
2088                        -icon error \
2089                        -type ok \
2090                        -title [wm title $w] \
2091                        -parent $w \
2092                        -message "Invalid check revision: $check_rev"
2093                return
2094        }
2095
2096        set to_delete [list]
2097        set not_merged [list]
2098        foreach i [$w.list.l curselection] {
2099                set b [$w.list.l get $i]
2100                if {[catch {set o [exec git rev-parse --verify $b]}]} continue
2101                if {$check_cmt ne {}} {
2102                        if {$b eq $check_rev} continue
2103                        if {[catch {set m [exec git merge-base $o $check_cmt]}]} continue
2104                        if {$o ne $m} {
2105                                lappend not_merged $b
2106                                continue
2107                        }
2108                }
2109                lappend to_delete [list $b $o]
2110        }
2111        if {$not_merged ne {}} {
2112                set msg "The following branches are not completely merged into $check_rev:
2113
2114 - [join $not_merged "\n - "]"
2115                tk_messageBox \
2116                        -icon info \
2117                        -type ok \
2118                        -title [wm title $w] \
2119                        -parent $w \
2120                        -message $msg
2121        }
2122        if {$to_delete eq {}} return
2123        if {$delete_branch_checktype eq {always}} {
2124                set msg {Recovering deleted branches is difficult.
2125
2126Delete the selected branches?}
2127                if {[tk_messageBox \
2128                        -icon warning \
2129                        -type yesno \
2130                        -title [wm title $w] \
2131                        -parent $w \
2132                        -message $msg] ne yes} {
2133                        return
2134                }
2135        }
2136
2137        set failed {}
2138        foreach i $to_delete {
2139                set b [lindex $i 0]
2140                set o [lindex $i 1]
2141                if {[catch {exec git update-ref -d "refs/heads/$b" $o} err]} {
2142                        append failed " - $b: $err\n"
2143                } else {
2144                        set x [lsearch -sorted -exact $all_heads $b]
2145                        if {$x >= 0} {
2146                                set all_heads [lreplace $all_heads $x $x]
2147                        }
2148                }
2149        }
2150
2151        if {$failed ne {}} {
2152                tk_messageBox \
2153                        -icon error \
2154                        -type ok \
2155                        -title [wm title $w] \
2156                        -parent $w \
2157                        -message "Failed to delete branches:\n$failed"
2158        }
2159
2160        set all_heads [lsort $all_heads]
2161        populate_branch_menu
2162        destroy $w
2163}
2164
2165proc do_delete_branch {} {
2166        global all_heads tracking_branches current_branch
2167        global delete_branch_checktype delete_branch_head delete_branch_trackinghead
2168
2169        set w .branch_editor
2170        toplevel $w
2171        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
2172
2173        label $w.header -text {Delete Local Branch} \
2174                -font font_uibold
2175        pack $w.header -side top -fill x
2176
2177        frame $w.buttons
2178        button $w.buttons.create -text Delete \
2179                -font font_ui \
2180                -command [list do_delete_branch_action $w]
2181        pack $w.buttons.create -side right
2182        button $w.buttons.cancel -text {Cancel} \
2183                -font font_ui \
2184                -command [list destroy $w]
2185        pack $w.buttons.cancel -side right -padx 5
2186        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
2187
2188        labelframe $w.list \
2189                -text {Local Branches} \
2190                -font font_ui
2191        listbox $w.list.l \
2192                -height 10 \
2193                -width 70 \
2194                -selectmode extended \
2195                -yscrollcommand [list $w.list.sby set] \
2196                -font font_ui
2197        foreach h $all_heads {
2198                if {$h ne $current_branch} {
2199                        $w.list.l insert end $h
2200                }
2201        }
2202        scrollbar $w.list.sby -command [list $w.list.l yview]
2203        pack $w.list.sby -side right -fill y
2204        pack $w.list.l -side left -fill both -expand 1
2205        pack $w.list -fill both -expand 1 -pady 5 -padx 5
2206
2207        labelframe $w.validate \
2208                -text {Delete Only If} \
2209                -font font_ui
2210        radiobutton $w.validate.head_r \
2211                -text {Merged Into Local Branch:} \
2212                -value head \
2213                -variable delete_branch_checktype \
2214                -font font_ui
2215        eval tk_optionMenu $w.validate.head_m delete_branch_head $all_heads
2216        grid $w.validate.head_r $w.validate.head_m -sticky w
2217        set all_trackings [all_tracking_branches]
2218        if {$all_trackings ne {}} {
2219                set delete_branch_trackinghead [lindex $all_trackings 0]
2220                radiobutton $w.validate.tracking_r \
2221                        -text {Merged Into Tracking Branch:} \
2222                        -value tracking \
2223                        -variable delete_branch_checktype \
2224                        -font font_ui
2225                eval tk_optionMenu $w.validate.tracking_m \
2226                        delete_branch_trackinghead \
2227                        $all_trackings
2228                grid $w.validate.tracking_r $w.validate.tracking_m -sticky w
2229        }
2230        radiobutton $w.validate.always_r \
2231                -text {Always (Do not perform merge checks)} \
2232                -value always \
2233                -variable delete_branch_checktype \
2234                -font font_ui
2235        grid $w.validate.always_r -columnspan 2 -sticky w
2236        grid columnconfigure $w.validate 1 -weight 1
2237        pack $w.validate -anchor nw -fill x -pady 5 -padx 5
2238
2239        set delete_branch_head $current_branch
2240        set delete_branch_checktype head
2241
2242        bind $w <Visibility> "grab $w; focus $w"
2243        bind $w <Key-Escape> "destroy $w"
2244        wm title $w "[appname] ([reponame]): Delete Branch"
2245        tkwait window $w
2246}
2247
2248proc switch_branch {new_branch} {
2249        global HEAD commit_type current_branch repo_config
2250
2251        if {![lock_index switch]} return
2252
2253        # -- Our in memory state should match the repository.
2254        #
2255        repository_state curType curHEAD curMERGE_HEAD
2256        if {[string match amend* $commit_type]
2257                && $curType eq {normal}
2258                && $curHEAD eq $HEAD} {
2259        } elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
2260                info_popup {Last scanned state does not match repository state.
2261
2262Another Git program has modified this repository
2263since the last scan.  A rescan must be performed
2264before the current branch can be changed.
2265
2266The rescan will be automatically started now.
2267}
2268                unlock_index
2269                rescan {set ui_status_value {Ready.}}
2270                return
2271        }
2272
2273        # -- Don't do a pointless switch.
2274        #
2275        if {$current_branch eq $new_branch} {
2276                unlock_index
2277                return
2278        }
2279
2280        if {$repo_config(gui.trustmtime) eq {true}} {
2281                switch_branch_stage2 {} $new_branch
2282        } else {
2283                set ui_status_value {Refreshing file status...}
2284                set cmd [list git update-index]
2285                lappend cmd -q
2286                lappend cmd --unmerged
2287                lappend cmd --ignore-missing
2288                lappend cmd --refresh
2289                set fd_rf [open "| $cmd" r]
2290                fconfigure $fd_rf -blocking 0 -translation binary
2291                fileevent $fd_rf readable \
2292                        [list switch_branch_stage2 $fd_rf $new_branch]
2293        }
2294}
2295
2296proc switch_branch_stage2 {fd_rf new_branch} {
2297        global ui_status_value HEAD
2298
2299        if {$fd_rf ne {}} {
2300                read $fd_rf
2301                if {![eof $fd_rf]} return
2302                close $fd_rf
2303        }
2304
2305        set ui_status_value "Updating working directory to '$new_branch'..."
2306        set cmd [list git read-tree]
2307        lappend cmd -m
2308        lappend cmd -u
2309        lappend cmd --exclude-per-directory=.gitignore
2310        lappend cmd $HEAD
2311        lappend cmd $new_branch
2312        set fd_rt [open "| $cmd" r]
2313        fconfigure $fd_rt -blocking 0 -translation binary
2314        fileevent $fd_rt readable \
2315                [list switch_branch_readtree_wait $fd_rt $new_branch]
2316}
2317
2318proc switch_branch_readtree_wait {fd_rt new_branch} {
2319        global selected_commit_type commit_type HEAD MERGE_HEAD PARENT
2320        global current_branch
2321        global ui_comm ui_status_value
2322
2323        # -- We never get interesting output on stdout; only stderr.
2324        #
2325        read $fd_rt
2326        fconfigure $fd_rt -blocking 1
2327        if {![eof $fd_rt]} {
2328                fconfigure $fd_rt -blocking 0
2329                return
2330        }
2331
2332        # -- The working directory wasn't in sync with the index and
2333        #    we'd have to overwrite something to make the switch. A
2334        #    merge is required.
2335        #
2336        if {[catch {close $fd_rt} err]} {
2337                regsub {^fatal: } $err {} err
2338                warn_popup "File level merge required.
2339
2340$err
2341
2342Staying on branch '$current_branch'."
2343                set ui_status_value "Aborted checkout of '$new_branch' (file level merging is required)."
2344                unlock_index
2345                return
2346        }
2347
2348        # -- Update the symbolic ref.  Core git doesn't even check for failure
2349        #    here, it Just Works(tm).  If it doesn't we are in some really ugly
2350        #    state that is difficult to recover from within git-gui.
2351        #
2352        if {[catch {exec git symbolic-ref HEAD "refs/heads/$new_branch"} err]} {
2353                error_popup "Failed to set current branch.
2354
2355This working directory is only partially switched.
2356We successfully updated your files, but failed to
2357update an internal Git file.
2358
2359This should not have occurred.  [appname] will now
2360close and give up.
2361
2362$err"
2363                do_quit
2364                return
2365        }
2366
2367        # -- Update our repository state.  If we were previously in amend mode
2368        #    we need to toss the current buffer and do a full rescan to update
2369        #    our file lists.  If we weren't in amend mode our file lists are
2370        #    accurate and we can avoid the rescan.
2371        #
2372        unlock_index
2373        set selected_commit_type new
2374        if {[string match amend* $commit_type]} {
2375                $ui_comm delete 0.0 end
2376                $ui_comm edit reset
2377                $ui_comm edit modified false
2378                rescan {set ui_status_value "Checked out branch '$current_branch'."}
2379        } else {
2380                repository_state commit_type HEAD MERGE_HEAD
2381                set PARENT $HEAD
2382                set ui_status_value "Checked out branch '$current_branch'."
2383        }
2384}
2385
2386######################################################################
2387##
2388## remote management
2389
2390proc load_all_remotes {} {
2391        global repo_config
2392        global all_remotes tracking_branches
2393
2394        set all_remotes [list]
2395        array unset tracking_branches
2396
2397        set rm_dir [gitdir remotes]
2398        if {[file isdirectory $rm_dir]} {
2399                set all_remotes [glob \
2400                        -types f \
2401                        -tails \
2402                        -nocomplain \
2403                        -directory $rm_dir *]
2404
2405                foreach name $all_remotes {
2406                        catch {
2407                                set fd [open [file join $rm_dir $name] r]
2408                                while {[gets $fd line] >= 0} {
2409                                        if {![regexp {^Pull:[   ]*([^:]+):(.+)$} \
2410                                                $line line src dst]} continue
2411                                        if {![regexp ^refs/ $dst]} {
2412                                                set dst "refs/heads/$dst"
2413                                        }
2414                                        set tracking_branches($dst) [list $name $src]
2415                                }
2416                                close $fd
2417                        }
2418                }
2419        }
2420
2421        foreach line [array names repo_config remote.*.url] {
2422                if {![regexp ^remote\.(.*)\.url\$ $line line name]} continue
2423                lappend all_remotes $name
2424
2425                if {[catch {set fl $repo_config(remote.$name.fetch)}]} {
2426                        set fl {}
2427                }
2428                foreach line $fl {
2429                        if {![regexp {^([^:]+):(.+)$} $line line src dst]} continue
2430                        if {![regexp ^refs/ $dst]} {
2431                                set dst "refs/heads/$dst"
2432                        }
2433                        set tracking_branches($dst) [list $name $src]
2434                }
2435        }
2436
2437        set all_remotes [lsort -unique $all_remotes]
2438}
2439
2440proc populate_fetch_menu {} {
2441        global all_remotes repo_config
2442
2443        set m .mbar.fetch
2444        foreach r $all_remotes {
2445                set enable 0
2446                if {![catch {set a $repo_config(remote.$r.url)}]} {
2447                        if {![catch {set a $repo_config(remote.$r.fetch)}]} {
2448                                set enable 1
2449                        }
2450                } else {
2451                        catch {
2452                                set fd [open [gitdir remotes $r] r]
2453                                while {[gets $fd n] >= 0} {
2454                                        if {[regexp {^Pull:[ \t]*([^:]+):} $n]} {
2455                                                set enable 1
2456                                                break
2457                                        }
2458                                }
2459                                close $fd
2460                        }
2461                }
2462
2463                if {$enable} {
2464                        $m add command \
2465                                -label "Fetch from $r..." \
2466                                -command [list fetch_from $r] \
2467                                -font font_ui
2468                }
2469        }
2470}
2471
2472proc populate_push_menu {} {
2473        global all_remotes repo_config
2474
2475        set m .mbar.push
2476        set fast_count 0
2477        foreach r $all_remotes {
2478                set enable 0
2479                if {![catch {set a $repo_config(remote.$r.url)}]} {
2480                        if {![catch {set a $repo_config(remote.$r.push)}]} {
2481                                set enable 1
2482                        }
2483                } else {
2484                        catch {
2485                                set fd [open [gitdir remotes $r] r]
2486                                while {[gets $fd n] >= 0} {
2487                                        if {[regexp {^Push:[ \t]*([^:]+):} $n]} {
2488                                                set enable 1
2489                                                break
2490                                        }
2491                                }
2492                                close $fd
2493                        }
2494                }
2495
2496                if {$enable} {
2497                        if {!$fast_count} {
2498                                $m add separator
2499                        }
2500                        $m add command \
2501                                -label "Push to $r..." \
2502                                -command [list push_to $r] \
2503                                -font font_ui
2504                        incr fast_count
2505                }
2506        }
2507}
2508
2509proc start_push_anywhere_action {w} {
2510        global push_urltype push_remote push_url push_thin push_tags
2511
2512        set r_url {}
2513        switch -- $push_urltype {
2514        remote {set r_url $push_remote}
2515        url {set r_url $push_url}
2516        }
2517        if {$r_url eq {}} return
2518
2519        set cmd [list git push]
2520        lappend cmd -v
2521        if {$push_thin} {
2522                lappend cmd --thin
2523        }
2524        if {$push_tags} {
2525                lappend cmd --tags
2526        }
2527        lappend cmd $r_url
2528        set cnt 0
2529        foreach i [$w.source.l curselection] {
2530                set b [$w.source.l get $i]
2531                lappend cmd "refs/heads/$b:refs/heads/$b"
2532                incr cnt
2533        }
2534        if {$cnt == 0} {
2535                return
2536        } elseif {$cnt == 1} {
2537                set unit branch
2538        } else {
2539                set unit branches
2540        }
2541
2542        set cons [new_console "push $r_url" "Pushing $cnt $unit to $r_url"]
2543        console_exec $cons $cmd console_done
2544        destroy $w
2545}
2546
2547trace add variable push_remote write \
2548        [list radio_selector push_urltype remote]
2549
2550proc do_push_anywhere {} {
2551        global all_heads all_remotes current_branch
2552        global push_urltype push_remote push_url push_thin push_tags
2553
2554        set w .push_setup
2555        toplevel $w
2556        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
2557
2558        label $w.header -text {Push Branches} -font font_uibold
2559        pack $w.header -side top -fill x
2560
2561        frame $w.buttons
2562        button $w.buttons.create -text Push \
2563                -font font_ui \
2564                -command [list start_push_anywhere_action $w]
2565        pack $w.buttons.create -side right
2566        button $w.buttons.cancel -text {Cancel} \
2567                -font font_ui \
2568                -command [list destroy $w]
2569        pack $w.buttons.cancel -side right -padx 5
2570        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
2571
2572        labelframe $w.source \
2573                -text {Source Branches} \
2574                -font font_ui
2575        listbox $w.source.l \
2576                -height 10 \
2577                -width 70 \
2578                -selectmode extended \
2579                -yscrollcommand [list $w.source.sby set] \
2580                -font font_ui
2581        foreach h $all_heads {
2582                $w.source.l insert end $h
2583                if {$h eq $current_branch} {
2584                        $w.source.l select set end
2585                }
2586        }
2587        scrollbar $w.source.sby -command [list $w.source.l yview]
2588        pack $w.source.sby -side right -fill y
2589        pack $w.source.l -side left -fill both -expand 1
2590        pack $w.source -fill both -expand 1 -pady 5 -padx 5
2591
2592        labelframe $w.dest \
2593                -text {Destination Repository} \
2594                -font font_ui
2595        if {$all_remotes ne {}} {
2596                radiobutton $w.dest.remote_r \
2597                        -text {Remote:} \
2598                        -value remote \
2599                        -variable push_urltype \
2600                        -font font_ui
2601                eval tk_optionMenu $w.dest.remote_m push_remote $all_remotes
2602                grid $w.dest.remote_r $w.dest.remote_m -sticky w
2603                if {[lsearch -sorted -exact $all_remotes origin] != -1} {
2604                        set push_remote origin
2605                } else {
2606                        set push_remote [lindex $all_remotes 0]
2607                }
2608                set push_urltype remote
2609        } else {
2610                set push_urltype url
2611        }
2612        radiobutton $w.dest.url_r \
2613                -text {Arbitrary URL:} \
2614                -value url \
2615                -variable push_urltype \
2616                -font font_ui
2617        entry $w.dest.url_t \
2618                -borderwidth 1 \
2619                -relief sunken \
2620                -width 50 \
2621                -textvariable push_url \
2622                -font font_ui \
2623                -validate key \
2624                -validatecommand {
2625                        if {%d == 1 && [regexp {\s} %S]} {return 0}
2626                        if {%d == 1 && [string length %S] > 0} {
2627                                set push_urltype url
2628                        }
2629                        return 1
2630                }
2631        grid $w.dest.url_r $w.dest.url_t -sticky we -padx {0 5}
2632        grid columnconfigure $w.dest 1 -weight 1
2633        pack $w.dest -anchor nw -fill x -pady 5 -padx 5
2634
2635        labelframe $w.options \
2636                -text {Transfer Options} \
2637                -font font_ui
2638        checkbutton $w.options.thin \
2639                -text {Use thin pack (for slow network connections)} \
2640                -variable push_thin \
2641                -font font_ui
2642        grid $w.options.thin -columnspan 2 -sticky w
2643        checkbutton $w.options.tags \
2644                -text {Include tags} \
2645                -variable push_tags \
2646                -font font_ui
2647        grid $w.options.tags -columnspan 2 -sticky w
2648        grid columnconfigure $w.options 1 -weight 1
2649        pack $w.options -anchor nw -fill x -pady 5 -padx 5
2650
2651        set push_url {}
2652        set push_thin 0
2653        set push_tags 0
2654
2655        bind $w <Visibility> "grab $w"
2656        bind $w <Key-Escape> "destroy $w"
2657        wm title $w "[appname] ([reponame]): Push"
2658        tkwait window $w
2659}
2660
2661######################################################################
2662##
2663## merge
2664
2665proc can_merge {} {
2666        global HEAD commit_type file_states
2667
2668        if {[string match amend* $commit_type]} {
2669                info_popup {Cannot merge while amending.
2670
2671You must finish amending this commit before
2672starting any type of merge.
2673}
2674                return 0
2675        }
2676
2677        if {[committer_ident] eq {}} {return 0}
2678        if {![lock_index merge]} {return 0}
2679
2680        # -- Our in memory state should match the repository.
2681        #
2682        repository_state curType curHEAD curMERGE_HEAD
2683        if {$commit_type ne $curType || $HEAD ne $curHEAD} {
2684                info_popup {Last scanned state does not match repository state.
2685
2686Another Git program has modified this repository
2687since the last scan.  A rescan must be performed
2688before a merge can be performed.
2689
2690The rescan will be automatically started now.
2691}
2692                unlock_index
2693                rescan {set ui_status_value {Ready.}}
2694                return 0
2695        }
2696
2697        foreach path [array names file_states] {
2698                switch -glob -- [lindex $file_states($path) 0] {
2699                _O {
2700                        continue; # and pray it works!
2701                }
2702                U? {
2703                        error_popup "You are in the middle of a conflicted merge.
2704
2705File [short_path $path] has merge conflicts.
2706
2707You must resolve them, add the file, and commit to
2708complete the current merge.  Only then can you
2709begin another merge.
2710"
2711                        unlock_index
2712                        return 0
2713                }
2714                ?? {
2715                        error_popup "You are in the middle of a change.
2716
2717File [short_path $path] is modified.
2718
2719You should complete the current commit before
2720starting a merge.  Doing so will help you abort
2721a failed merge, should the need arise.
2722"
2723                        unlock_index
2724                        return 0
2725                }
2726                }
2727        }
2728
2729        return 1
2730}
2731
2732proc visualize_local_merge {w} {
2733        set revs {}
2734        foreach i [$w.source.l curselection] {
2735                lappend revs [$w.source.l get $i]
2736        }
2737        if {$revs eq {}} return
2738        lappend revs --not HEAD
2739        do_gitk $revs
2740}
2741
2742proc start_local_merge_action {w} {
2743        global HEAD ui_status_value current_branch
2744
2745        set cmd [list git merge]
2746        set names {}
2747        set revcnt 0
2748        foreach i [$w.source.l curselection] {
2749                set b [$w.source.l get $i]
2750                lappend cmd $b
2751                lappend names $b
2752                incr revcnt
2753        }
2754
2755        if {$revcnt == 0} {
2756                return
2757        } elseif {$revcnt == 1} {
2758                set unit branch
2759        } elseif {$revcnt <= 15} {
2760                set unit branches
2761        } else {
2762                tk_messageBox \
2763                        -icon error \
2764                        -type ok \
2765                        -title [wm title $w] \
2766                        -parent $w \
2767                        -message "Too many branches selected.
2768
2769You have requested to merge $revcnt branches
2770in an octopus merge.  This exceeds Git's
2771internal limit of 15 branches per merge.
2772
2773Please select fewer branches.  To merge more
2774than 15 branches, merge the branches in batches.
2775"
2776                return
2777        }
2778
2779        set msg "Merging $current_branch, [join $names {, }]"
2780        set ui_status_value "$msg..."
2781        set cons [new_console "Merge" $msg]
2782        console_exec $cons $cmd [list finish_merge $revcnt]
2783        bind $w <Destroy> {}
2784        destroy $w
2785}
2786
2787proc finish_merge {revcnt w ok} {
2788        console_done $w $ok
2789        if {$ok} {
2790                set msg {Merge completed successfully.}
2791        } else {
2792                if {$revcnt != 1} {
2793                        info_popup "Octopus merge failed.
2794
2795Your merge of $revcnt branches has failed.
2796
2797There are file-level conflicts between the
2798branches which must be resolved manually.
2799
2800The working directory will now be reset.
2801
2802You can attempt this merge again
2803by merging only one branch at a time." $w
2804
2805                        set fd [open "| git read-tree --reset -u HEAD" r]
2806                        fconfigure $fd -blocking 0 -translation binary
2807                        fileevent $fd readable [list reset_hard_wait $fd]
2808                        set ui_status_value {Aborting... please wait...}
2809                        return
2810                }
2811
2812                set msg {Merge failed.  Conflict resolution is required.}
2813        }
2814        unlock_index
2815        rescan [list set ui_status_value $msg]
2816}
2817
2818proc do_local_merge {} {
2819        global current_branch
2820
2821        if {![can_merge]} return
2822
2823        set w .merge_setup
2824        toplevel $w
2825        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
2826
2827        label $w.header \
2828                -text "Merge Into $current_branch" \
2829                -font font_uibold
2830        pack $w.header -side top -fill x
2831
2832        frame $w.buttons
2833        button $w.buttons.visualize -text Visualize \
2834                -font font_ui \
2835                -command [list visualize_local_merge $w]
2836        pack $w.buttons.visualize -side left
2837        button $w.buttons.create -text Merge \
2838                -font font_ui \
2839                -command [list start_local_merge_action $w]
2840        pack $w.buttons.create -side right
2841        button $w.buttons.cancel -text {Cancel} \
2842                -font font_ui \
2843                -command [list destroy $w]
2844        pack $w.buttons.cancel -side right -padx 5
2845        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
2846
2847        labelframe $w.source \
2848                -text {Source Branches} \
2849                -font font_ui
2850        listbox $w.source.l \
2851                -height 10 \
2852                -width 70 \
2853                -selectmode extended \
2854                -yscrollcommand [list $w.source.sby set] \
2855                -font font_ui
2856        scrollbar $w.source.sby -command [list $w.source.l yview]
2857        pack $w.source.sby -side right -fill y
2858        pack $w.source.l -side left -fill both -expand 1
2859        pack $w.source -fill both -expand 1 -pady 5 -padx 5
2860
2861        set cmd [list git for-each-ref]
2862        lappend cmd {--format=%(objectname) %(refname)}
2863        lappend cmd refs/heads
2864        lappend cmd refs/remotes
2865        set fr_fd [open "| $cmd" r]
2866        fconfigure $fr_fd -translation binary
2867        while {[gets $fr_fd line] > 0} {
2868                set line [split $line { }]
2869                set sha1([lindex $line 0]) [lindex $line 1]
2870        }
2871        close $fr_fd
2872
2873        set to_show {}
2874        set fr_fd [open "| git rev-list --all --not HEAD"]
2875        while {[gets $fr_fd line] > 0} {
2876                if {[catch {set ref $sha1($line)}]} continue
2877                regsub ^refs/(heads|remotes)/ $ref {} ref
2878                lappend to_show $ref
2879        }
2880        close $fr_fd
2881
2882        foreach ref [lsort -unique $to_show] {
2883                $w.source.l insert end $ref
2884        }
2885
2886        bind $w <Visibility> "grab $w"
2887        bind $w <Key-Escape> "unlock_index;destroy $w"
2888        bind $w <Destroy> unlock_index
2889        wm title $w "[appname] ([reponame]): Merge"
2890        tkwait window $w
2891}
2892
2893proc do_reset_hard {} {
2894        global HEAD commit_type file_states
2895
2896        if {[string match amend* $commit_type]} {
2897                info_popup {Cannot abort while amending.
2898
2899You must finish amending this commit.
2900}
2901                return
2902        }
2903
2904        if {![lock_index abort]} return
2905
2906        if {[string match *merge* $commit_type]} {
2907                set op merge
2908        } else {
2909                set op commit
2910        }
2911
2912        if {[ask_popup "Abort $op?
2913
2914Aborting the current $op will cause
2915*ALL* uncommitted changes to be lost.
2916
2917Continue with aborting the current $op?"] eq {yes}} {
2918                set fd [open "| git read-tree --reset -u HEAD" r]
2919                fconfigure $fd -blocking 0 -translation binary
2920                fileevent $fd readable [list reset_hard_wait $fd]
2921                set ui_status_value {Aborting... please wait...}
2922        } else {
2923                unlock_index
2924        }
2925}
2926
2927proc reset_hard_wait {fd} {
2928        global ui_comm
2929
2930        read $fd
2931        if {[eof $fd]} {
2932                close $fd
2933                unlock_index
2934
2935                $ui_comm delete 0.0 end
2936                $ui_comm edit modified false
2937
2938                catch {file delete [gitdir MERGE_HEAD]}
2939                catch {file delete [gitdir rr-cache MERGE_RR]}
2940                catch {file delete [gitdir SQUASH_MSG]}
2941                catch {file delete [gitdir MERGE_MSG]}
2942                catch {file delete [gitdir GITGUI_MSG]}
2943
2944                rescan {set ui_status_value {Abort completed.  Ready.}}
2945        }
2946}
2947
2948######################################################################
2949##
2950## browser
2951
2952set next_browser_id 0
2953
2954proc new_browser {} {
2955        global next_browser_id cursor_ptr
2956        global browser_commit browser_status browser_stack browser_path browser_busy
2957
2958        set w .browser[incr next_browser_id]
2959        set w_list $w.list.l
2960        set browser_commit($w_list) HEAD
2961        set browser_status($w_list) {Starting...}
2962        set browser_stack($w_list) {}
2963        set browser_path($w_list) $browser_commit($w_list):
2964        set browser_busy($w_list) 1
2965
2966        toplevel $w
2967        label $w.path -textvariable browser_path($w_list) \
2968                -anchor w \
2969                -justify left \
2970                -borderwidth 1 \
2971                -relief sunken \
2972                -font font_uibold
2973        pack $w.path -anchor w -side top -fill x
2974
2975        frame $w.list
2976        text $w_list -background white -borderwidth 0 \
2977                -cursor $cursor_ptr \
2978                -state disabled \
2979                -wrap none \
2980                -height 20 \
2981                -width 70 \
2982                -xscrollcommand [list $w.list.sbx set] \
2983                -yscrollcommand [list $w.list.sby set] \
2984                -font font_ui
2985        $w_list tag conf in_sel \
2986                -background [$w_list cget -foreground] \
2987                -foreground [$w_list cget -background]
2988        scrollbar $w.list.sbx -orient h -command [list $w_list xview]
2989        scrollbar $w.list.sby -orient v -command [list $w_list yview]
2990        pack $w.list.sbx -side bottom -fill x
2991        pack $w.list.sby -side right -fill y
2992        pack $w_list -side left -fill both -expand 1
2993        pack $w.list -side top -fill both -expand 1
2994
2995        label $w.status -textvariable browser_status($w_list) \
2996                -anchor w \
2997                -justify left \
2998                -borderwidth 1 \
2999                -relief sunken \
3000                -font font_ui
3001        pack $w.status -anchor w -side bottom -fill x
3002
3003        bind $w_list <Button-1>        "browser_click 0 $w_list @%x,%y;break"
3004        bind $w_list <Double-Button-1> "browser_click 1 $w_list @%x,%y;break"
3005
3006        bind $w <Visibility> "focus $w"
3007        bind $w <Destroy> "
3008                array unset browser_buffer $w_list
3009                array unset browser_files $w_list
3010                array unset browser_status $w_list
3011                array unset browser_stack $w_list
3012                array unset browser_path $w_list
3013                array unset browser_commit $w_list
3014                array unset browser_busy $w_list
3015        "
3016        wm title $w "[appname] ([reponame]): File Browser"
3017        ls_tree $w_list $browser_commit($w_list) {}
3018}
3019
3020proc browser_click {was_double_click w pos} {
3021        global browser_files browser_status browser_path
3022        global browser_commit browser_stack browser_busy
3023
3024        if {$browser_busy($w)} return
3025        set lno [lindex [split [$w index $pos] .] 0]
3026        set info [lindex $browser_files($w) [expr {$lno - 1}]]
3027
3028        $w conf -state normal
3029        $w tag remove sel 0.0 end
3030        $w tag remove in_sel 0.0 end
3031        if {$info ne {}} {
3032                $w tag add in_sel $lno.0 [expr {$lno + 1}].0
3033                if {$was_double_click} {
3034                        switch -- [lindex $info 0] {
3035                        parent {
3036                                set parent [lindex $browser_stack($w) end-1]
3037                                set browser_stack($w) [lrange $browser_stack($w) 0 end-2]
3038                                if {$browser_stack($w) eq {}} {
3039                                        regsub {:.*$} $browser_path($w) {:} browser_path($w)
3040                                } else {
3041                                        regsub {/[^/]+$} $browser_path($w) {} browser_path($w)
3042                                }
3043                                set browser_status($w) "Loading $browser_path($w)..."
3044                                ls_tree $w [lindex $parent 0] [lindex $parent 1]
3045                        }
3046                        tree {
3047                                set name [lindex $info 2]
3048                                set escn [escape_path $name]
3049                                set browser_status($w) "Loading $escn..."
3050                                append browser_path($w) $escn
3051                                ls_tree $w [lindex $info 1] $name
3052                        }
3053                        blob {
3054                                set name [lindex $info 2]
3055                                set p {}
3056                                foreach n $browser_stack($w) {
3057                                        append p [lindex $n 1]
3058                                }
3059                                append p $name
3060                                show_blame $browser_commit($w) $p
3061                        }
3062                        }
3063                }
3064        }
3065        $w conf -state disabled
3066}
3067
3068proc ls_tree {w tree_id name} {
3069        global browser_buffer browser_files browser_stack browser_busy
3070
3071        set browser_buffer($w) {}
3072        set browser_files($w) {}
3073        set browser_busy($w) 1
3074
3075        $w conf -state normal
3076        $w tag remove in_sel 0.0 end
3077        $w tag remove sel 0.0 end
3078        $w delete 0.0 end
3079        if {$browser_stack($w) ne {}} {
3080                $w image create end \
3081                        -align center -padx 5 -pady 1 \
3082                        -name icon0 \
3083                        -image file_uplevel
3084                $w insert end {[Up To Parent]}
3085                lappend browser_files($w) parent
3086        }
3087        lappend browser_stack($w) [list $tree_id $name]
3088        $w conf -state disabled
3089
3090        set fd [open "| git ls-tree -z $tree_id" r]
3091        fconfigure $fd -blocking 0 -translation binary -encoding binary
3092        fileevent $fd readable [list read_ls_tree $fd $w]
3093}
3094
3095proc read_ls_tree {fd w} {
3096        global browser_buffer browser_files browser_status browser_busy
3097
3098        if {![winfo exists $w]} {
3099                catch {close $fd}
3100                return
3101        }
3102
3103        append browser_buffer($w) [read $fd]
3104        set pck [split $browser_buffer($w) "\0"]
3105        set browser_buffer($w) [lindex $pck end]
3106
3107        set n [llength $browser_files($w)]
3108        $w conf -state normal
3109        foreach p [lrange $pck 0 end-1] {
3110                set info [split $p "\t"]
3111                set path [lindex $info 1]
3112                set info [split [lindex $info 0] { }]
3113                set type [lindex $info 1]
3114                set object [lindex $info 2]
3115
3116                switch -- $type {
3117                blob {
3118                        set image file_plain
3119                }
3120                tree {
3121                        set image file_dir
3122                        append path /
3123                }
3124                default {
3125                        set image file_question
3126                }
3127                }
3128
3129                if {$n > 0} {$w insert end "\n"}
3130                $w image create end \
3131                        -align center -padx 5 -pady 1 \
3132                        -name icon[incr n] \
3133                        -image $image
3134                $w insert end [escape_path $path]
3135                lappend browser_files($w) [list $type $object $path]
3136        }
3137        $w conf -state disabled
3138
3139        if {[eof $fd]} {
3140                close $fd
3141                set browser_status($w) Ready.
3142                set browser_busy($w) 0
3143                array unset browser_buffer $w
3144        }
3145}
3146
3147proc show_blame {commit path} {
3148        global next_browser_id blame_status blame_data
3149
3150        set w .browser[incr next_browser_id]
3151        set blame_status($w) {Loading current file content...}
3152        set texts [list]
3153
3154        toplevel $w
3155        panedwindow $w.out -orient horizontal
3156
3157        label $w.path -text "$commit:$path" \
3158                -anchor w \
3159                -justify left \
3160                -borderwidth 1 \
3161                -relief sunken \
3162                -font font_uibold
3163        pack $w.path -anchor w -side top -fill x
3164
3165        text $w.out.commit -background white -borderwidth 0 \
3166                -state disabled \
3167                -wrap none \
3168                -height 40 \
3169                -width 8 \
3170                -font font_diff
3171        $w.out add $w.out.commit
3172        lappend texts $w.out.commit
3173
3174        text $w.out.author -background white -borderwidth 0 \
3175                -state disabled \
3176                -wrap none \
3177                -height 40 \
3178                -width 20 \
3179                -font font_diff
3180        $w.out add $w.out.author
3181        lappend texts $w.out.author
3182
3183        text $w.out.date -background white -borderwidth 0 \
3184                -state disabled \
3185                -wrap none \
3186                -height 40 \
3187                -width [string length "yyyy-mm-dd hh:mm:ss"] \
3188                -font font_diff
3189        $w.out add $w.out.date
3190        lappend texts $w.out.date
3191
3192        text $w.out.linenumber -background white -borderwidth 0 \
3193                -state disabled \
3194                -wrap none \
3195                -height 40 \
3196                -width 5 \
3197                -font font_diff
3198        $w.out.linenumber tag conf linenumber -justify right
3199        $w.out add $w.out.linenumber
3200        lappend texts $w.out.linenumber
3201
3202        text $w.out.file -background white -borderwidth 0 \
3203                -state disabled \
3204                -wrap none \
3205                -height 40 \
3206                -width 80 \
3207                -font font_diff
3208        $w.out add $w.out.file
3209        lappend texts $w.out.file
3210
3211        label $w.status -textvariable blame_status($w) \
3212                -anchor w \
3213                -justify left \
3214                -borderwidth 1 \
3215                -relief sunken \
3216                -font font_ui
3217        pack $w.status -anchor w -side bottom -fill x
3218
3219        scrollbar $w.sby -orient v -command [list scrollbar2many $texts yview]
3220        pack $w.sby -side right -fill y
3221        pack $w.out -side left -fill both -expand 1
3222
3223        menu $w.ctxm -tearoff 0
3224        $w.ctxm add command -label "Copy Commit" \
3225                -font font_ui \
3226                -command "blame_copycommit $w \$cursorW @\$cursorX,\$cursorY"
3227
3228        foreach i $texts {
3229                $i tag conf in_sel \
3230                        -background [$i cget -foreground] \
3231                        -foreground [$i cget -background]
3232                $i conf -yscrollcommand [list many2scrollbar $texts yview $w.sby]
3233                bind $i <Button-1> "blame_highlight $i @%x,%y $texts;break"
3234                bind_button3 $i "
3235                        set cursorX %x
3236                        set cursorY %y
3237                        set cursorW %W
3238                        tk_popup $w.ctxm %X %Y
3239                "
3240        }
3241
3242        bind $w <Visibility> "focus $w"
3243        bind $w <Destroy> "
3244                array unset blame_status $w
3245                array unset blame_data $w,*
3246        "
3247        wm title $w "[appname] ([reponame]): File Viewer"
3248
3249        set blame_data($w,total_lines) 0
3250        set fd [open "| git cat-file blob $commit:$path" r]
3251        fconfigure $fd -blocking 0 -translation lf -encoding binary
3252        fileevent $fd readable [list read_blame_catfile $fd $w $commit $path \
3253                $texts $w.out.linenumber $w.out.file]
3254}
3255
3256proc read_blame_catfile {fd w commit path texts w_lno w_file} {
3257        global blame_status blame_data
3258
3259        if {![winfo exists $w_file]} {
3260                catch {close $fd}
3261                return
3262        }
3263
3264        set n $blame_data($w,total_lines)
3265        foreach i $texts {$i conf -state normal}
3266        while {[gets $fd line] >= 0} {
3267                regsub "\r\$" $line {} line
3268                incr n
3269                $w_lno insert end $n linenumber
3270                $w_file insert end $line
3271                foreach i $texts {$i insert end "\n"}
3272        }
3273        foreach i $texts {$i conf -state disabled}
3274        set blame_data($w,total_lines) $n
3275
3276        if {[eof $fd]} {
3277                close $fd
3278                set blame_status($w) {Loading annotations...}
3279                set fd [open "| git blame --incremental $commit -- $path" r]
3280                fconfigure $fd -blocking 0 -translation lf -encoding binary
3281                fileevent $fd readable "read_blame_incremental $fd $w $texts"
3282        }
3283}
3284
3285proc read_blame_incremental {fd w w_commit w_author w_date w_lno w_file} {
3286        global blame_status blame_data
3287
3288        if {![winfo exists $w_commit]} {
3289                catch {close $fd}
3290                return
3291        }
3292
3293        $w_commit conf -state normal
3294        $w_author conf -state normal
3295        $w_date conf -state normal
3296
3297        while {[gets $fd line] >= 0} {
3298                if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
3299                        commit original_line final_line line_count]} {
3300                        set blame_data($w,commit) $commit
3301                        set blame_data($w,original_line) $original_line
3302                        set blame_data($w,final_line) $final_line
3303                        set blame_data($w,line_count) $line_count
3304                } elseif {[string match {filename *} $line]} {
3305                        set n $blame_data($w,line_count)
3306                        set lno $blame_data($w,final_line)
3307                        set file [string range $line 9 end]
3308                        set commit $blame_data($w,commit)
3309                        set abbrev [string range $commit 0 8]
3310
3311                        if {[catch {set author $blame_data($w,$commit,author)} err]} {
3312                        puts $err
3313                                set author {}
3314                        }
3315
3316                        if {[catch {set atime $blame_data($w,$commit,author-time)}]} {
3317                                set atime {}
3318                        } else {
3319                                set atime [clock format $atime -format {%Y-%m-%d %T}]
3320                        }
3321
3322                        while {$n > 0} {
3323                                $w_commit delete $lno.0 "$lno.0 lineend"
3324                                $w_author delete $lno.0 "$lno.0 lineend"
3325                                $w_date delete $lno.0 "$lno.0 lineend"
3326
3327                                $w_commit insert $lno.0 $abbrev
3328                                $w_author insert $lno.0 $author
3329                                $w_date insert $lno.0 $atime
3330                                set blame_data($w,line$lno,commit) $commit
3331
3332                                incr n -1
3333                                incr lno
3334                        }
3335                } elseif {[regexp {^([a-z-]+) (.*)$} $line line header data]} {
3336                        set blame_data($w,$blame_data($w,commit),$header) $data
3337                }
3338        }
3339
3340        $w_commit conf -state disabled
3341        $w_author conf -state disabled
3342        $w_date conf -state disabled
3343
3344        if {[eof $fd]} {
3345                close $fd
3346                set blame_status($w) {Annotation complete.}
3347        }
3348}
3349
3350proc blame_highlight {w pos args} {
3351        set lno [lindex [split [$w index $pos] .] 0]
3352        foreach i $args {
3353                $i tag remove in_sel 0.0 end
3354        }
3355        if {$lno eq {}} return
3356        foreach i $args {
3357                $i tag add in_sel $lno.0 "$lno.0 + 1 line"
3358        }
3359}
3360
3361proc blame_copycommit {w i pos} {
3362        global blame_data
3363        set lno [lindex [split [$i index $pos] .] 0]
3364        if {![catch {set commit $blame_data($w,line$lno,commit)}]} {
3365                clipboard clear
3366                clipboard append \
3367                        -format STRING \
3368                        -type STRING \
3369                        -- $commit
3370        }
3371}
3372
3373######################################################################
3374##
3375## icons
3376
3377set filemask {
3378#define mask_width 14
3379#define mask_height 15
3380static unsigned char mask_bits[] = {
3381   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
3382   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
3383   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
3384}
3385
3386image create bitmap file_plain -background white -foreground black -data {
3387#define plain_width 14
3388#define plain_height 15
3389static unsigned char plain_bits[] = {
3390   0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
3391   0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
3392   0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
3393} -maskdata $filemask
3394
3395image create bitmap file_mod -background white -foreground blue -data {
3396#define mod_width 14
3397#define mod_height 15
3398static unsigned char mod_bits[] = {
3399   0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
3400   0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
3401   0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
3402} -maskdata $filemask
3403
3404image create bitmap file_fulltick -background white -foreground "#007000" -data {
3405#define file_fulltick_width 14
3406#define file_fulltick_height 15
3407static unsigned char file_fulltick_bits[] = {
3408   0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
3409   0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
3410   0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
3411} -maskdata $filemask
3412
3413image create bitmap file_parttick -background white -foreground "#005050" -data {
3414#define parttick_width 14
3415#define parttick_height 15
3416static unsigned char parttick_bits[] = {
3417   0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
3418   0x7a, 0x14, 0x02, 0x16, 0x02, 0x13, 0x8a, 0x11, 0xda, 0x10, 0x72, 0x10,
3419   0x22, 0x10, 0x02, 0x10, 0xfe, 0x1f};
3420} -maskdata $filemask
3421
3422image create bitmap file_question -background white -foreground black -data {
3423#define file_question_width 14
3424#define file_question_height 15
3425static unsigned char file_question_bits[] = {
3426   0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
3427   0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
3428   0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
3429} -maskdata $filemask
3430
3431image create bitmap file_removed -background white -foreground red -data {
3432#define file_removed_width 14
3433#define file_removed_height 15
3434static unsigned char file_removed_bits[] = {
3435   0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
3436   0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
3437   0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
3438} -maskdata $filemask
3439
3440image create bitmap file_merge -background white -foreground blue -data {
3441#define file_merge_width 14
3442#define file_merge_height 15
3443static unsigned char file_merge_bits[] = {
3444   0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
3445   0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
3446   0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
3447} -maskdata $filemask
3448
3449image create bitmap file_dir -background white -foreground blue -data {
3450#define mod_width 14
3451#define mod_height 15
3452static unsigned char mod_bits[] = {
3453   0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
3454   0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
3455   0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
3456} -maskdata $filemask
3457
3458image create bitmap file_uplevel -background white -foreground blue -data {
3459#define mod_width 14
3460#define mod_height 15
3461static unsigned char mod_bits[] = {
3462   0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
3463   0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
3464   0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
3465} -maskdata $filemask
3466
3467set ui_index .vpane.files.index.list
3468set ui_workdir .vpane.files.workdir.list
3469
3470set all_icons(_$ui_index)   file_plain
3471set all_icons(A$ui_index)   file_fulltick
3472set all_icons(M$ui_index)   file_fulltick
3473set all_icons(D$ui_index)   file_removed
3474set all_icons(U$ui_index)   file_merge
3475
3476set all_icons(_$ui_workdir) file_plain
3477set all_icons(M$ui_workdir) file_mod
3478set all_icons(D$ui_workdir) file_question
3479set all_icons(U$ui_workdir) file_merge
3480set all_icons(O$ui_workdir) file_plain
3481
3482set max_status_desc 0
3483foreach i {
3484                {__ "Unmodified"}
3485
3486                {_M "Modified, not staged"}
3487                {M_ "Staged for commit"}
3488                {MM "Portions staged for commit"}
3489                {MD "Staged for commit, missing"}
3490
3491                {_O "Untracked, not staged"}
3492                {A_ "Staged for commit"}
3493                {AM "Portions staged for commit"}
3494                {AD "Staged for commit, missing"}
3495
3496                {_D "Missing"}
3497                {D_ "Staged for removal"}
3498                {DO "Staged for removal, still present"}
3499
3500                {U_ "Requires merge resolution"}
3501                {UU "Requires merge resolution"}
3502                {UM "Requires merge resolution"}
3503                {UD "Requires merge resolution"}
3504        } {
3505        if {$max_status_desc < [string length [lindex $i 1]]} {
3506                set max_status_desc [string length [lindex $i 1]]
3507        }
3508        set all_descs([lindex $i 0]) [lindex $i 1]
3509}
3510unset i
3511
3512######################################################################
3513##
3514## util
3515
3516proc bind_button3 {w cmd} {
3517        bind $w <Any-Button-3> $cmd
3518        if {[is_MacOSX]} {
3519                bind $w <Control-Button-1> $cmd
3520        }
3521}
3522
3523proc scrollbar2many {list mode args} {
3524        foreach w $list {eval $w $mode $args}
3525}
3526
3527proc many2scrollbar {list mode sb top bottom} {
3528        $sb set $top $bottom
3529        foreach w $list {$w $mode moveto $top}
3530}
3531
3532proc incr_font_size {font {amt 1}} {
3533        set sz [font configure $font -size]
3534        incr sz $amt
3535        font configure $font -size $sz
3536        font configure ${font}bold -size $sz
3537}
3538
3539proc hook_failed_popup {hook msg} {
3540        set w .hookfail
3541        toplevel $w
3542
3543        frame $w.m
3544        label $w.m.l1 -text "$hook hook failed:" \
3545                -anchor w \
3546                -justify left \
3547                -font font_uibold
3548        text $w.m.t \
3549                -background white -borderwidth 1 \
3550                -relief sunken \
3551                -width 80 -height 10 \
3552                -font font_diff \
3553                -yscrollcommand [list $w.m.sby set]
3554        label $w.m.l2 \
3555                -text {You must correct the above errors before committing.} \
3556                -anchor w \
3557                -justify left \
3558                -font font_uibold
3559        scrollbar $w.m.sby -command [list $w.m.t yview]
3560        pack $w.m.l1 -side top -fill x
3561        pack $w.m.l2 -side bottom -fill x
3562        pack $w.m.sby -side right -fill y
3563        pack $w.m.t -side left -fill both -expand 1
3564        pack $w.m -side top -fill both -expand 1 -padx 5 -pady 10
3565
3566        $w.m.t insert 1.0 $msg
3567        $w.m.t conf -state disabled
3568
3569        button $w.ok -text OK \
3570                -width 15 \
3571                -font font_ui \
3572                -command "destroy $w"
3573        pack $w.ok -side bottom -anchor e -pady 10 -padx 10
3574
3575        bind $w <Visibility> "grab $w; focus $w"
3576        bind $w <Key-Return> "destroy $w"
3577        wm title $w "[appname] ([reponame]): error"
3578        tkwait window $w
3579}
3580
3581set next_console_id 0
3582
3583proc new_console {short_title long_title} {
3584        global next_console_id console_data
3585        set w .console[incr next_console_id]
3586        set console_data($w) [list $short_title $long_title]
3587        return [console_init $w]
3588}
3589
3590proc console_init {w} {
3591        global console_cr console_data M1B
3592
3593        set console_cr($w) 1.0
3594        toplevel $w
3595        frame $w.m
3596        label $w.m.l1 -text "[lindex $console_data($w) 1]:" \
3597                -anchor w \
3598                -justify left \
3599                -font font_uibold
3600        text $w.m.t \
3601                -background white -borderwidth 1 \
3602                -relief sunken \
3603                -width 80 -height 10 \
3604                -font font_diff \
3605                -state disabled \
3606                -yscrollcommand [list $w.m.sby set]
3607        label $w.m.s -text {Working... please wait...} \
3608                -anchor w \
3609                -justify left \
3610                -font font_uibold
3611        scrollbar $w.m.sby -command [list $w.m.t yview]
3612        pack $w.m.l1 -side top -fill x
3613        pack $w.m.s -side bottom -fill x
3614        pack $w.m.sby -side right -fill y
3615        pack $w.m.t -side left -fill both -expand 1
3616        pack $w.m -side top -fill both -expand 1 -padx 5 -pady 10
3617
3618        menu $w.ctxm -tearoff 0
3619        $w.ctxm add command -label "Copy" \
3620                -font font_ui \
3621                -command "tk_textCopy $w.m.t"
3622        $w.ctxm add command -label "Select All" \
3623                -font font_ui \
3624                -command "focus $w.m.t;$w.m.t tag add sel 0.0 end"
3625        $w.ctxm add command -label "Copy All" \
3626                -font font_ui \
3627                -command "
3628                        $w.m.t tag add sel 0.0 end
3629                        tk_textCopy $w.m.t
3630                        $w.m.t tag remove sel 0.0 end
3631                "
3632
3633        button $w.ok -text {Close} \
3634                -font font_ui \
3635                -state disabled \
3636                -command "destroy $w"
3637        pack $w.ok -side bottom -anchor e -pady 10 -padx 10
3638
3639        bind_button3 $w.m.t "tk_popup $w.ctxm %X %Y"
3640        bind $w.m.t <$M1B-Key-a> "$w.m.t tag add sel 0.0 end;break"
3641        bind $w.m.t <$M1B-Key-A> "$w.m.t tag add sel 0.0 end;break"
3642        bind $w <Visibility> "focus $w"
3643        wm title $w "[appname] ([reponame]): [lindex $console_data($w) 0]"
3644        return $w
3645}
3646
3647proc console_exec {w cmd after} {
3648        # -- Cygwin's Tcl tosses the enviroment when we exec our child.
3649        #    But most users need that so we have to relogin. :-(
3650        #
3651        if {[is_Cygwin]} {
3652                set cmd [list sh --login -c "cd \"[pwd]\" && [join $cmd { }]"]
3653        }
3654
3655        # -- Tcl won't let us redirect both stdout and stderr to
3656        #    the same pipe.  So pass it through cat...
3657        #
3658        set cmd [concat | $cmd |& cat]
3659
3660        set fd_f [open $cmd r]
3661        fconfigure $fd_f -blocking 0 -translation binary
3662        fileevent $fd_f readable [list console_read $w $fd_f $after]
3663}
3664
3665proc console_read {w fd after} {
3666        global console_cr
3667
3668        set buf [read $fd]
3669        if {$buf ne {}} {
3670                if {![winfo exists $w]} {console_init $w}
3671                $w.m.t conf -state normal
3672                set c 0
3673                set n [string length $buf]
3674                while {$c < $n} {
3675                        set cr [string first "\r" $buf $c]
3676                        set lf [string first "\n" $buf $c]
3677                        if {$cr < 0} {set cr [expr {$n + 1}]}
3678                        if {$lf < 0} {set lf [expr {$n + 1}]}
3679
3680                        if {$lf < $cr} {
3681                                $w.m.t insert end [string range $buf $c $lf]
3682                                set console_cr($w) [$w.m.t index {end -1c}]
3683                                set c $lf
3684                                incr c
3685                        } else {
3686                                $w.m.t delete $console_cr($w) end
3687                                $w.m.t insert end "\n"
3688                                $w.m.t insert end [string range $buf $c $cr]
3689                                set c $cr
3690                                incr c
3691                        }
3692                }
3693                $w.m.t conf -state disabled
3694                $w.m.t see end
3695        }
3696
3697        fconfigure $fd -blocking 1
3698        if {[eof $fd]} {
3699                if {[catch {close $fd}]} {
3700                        set ok 0
3701                } else {
3702                        set ok 1
3703                }
3704                uplevel #0 $after $w $ok
3705                return
3706        }
3707        fconfigure $fd -blocking 0
3708}
3709
3710proc console_chain {cmdlist w {ok 1}} {
3711        if {$ok} {
3712                if {[llength $cmdlist] == 0} {
3713                        console_done $w $ok
3714                        return
3715                }
3716
3717                set cmd [lindex $cmdlist 0]
3718                set cmdlist [lrange $cmdlist 1 end]
3719
3720                if {[lindex $cmd 0] eq {console_exec}} {
3721                        console_exec $w \
3722                                [lindex $cmd 1] \
3723                                [list console_chain $cmdlist]
3724                } else {
3725                        uplevel #0 $cmd $cmdlist $w $ok
3726                }
3727        } else {
3728                console_done $w $ok
3729        }
3730}
3731
3732proc console_done {args} {
3733        global console_cr console_data
3734
3735        switch -- [llength $args] {
3736        2 {
3737                set w [lindex $args 0]
3738                set ok [lindex $args 1]
3739        }
3740        3 {
3741                set w [lindex $args 1]
3742                set ok [lindex $args 2]
3743        }
3744        default {
3745                error "wrong number of args: console_done ?ignored? w ok"
3746        }
3747        }
3748
3749        if {$ok} {
3750                if {[winfo exists $w]} {
3751                        $w.m.s conf -background green -text {Success}
3752                        $w.ok conf -state normal
3753                }
3754        } else {
3755                if {![winfo exists $w]} {
3756                        console_init $w
3757                }
3758                $w.m.s conf -background red -text {Error: Command Failed}
3759                $w.ok conf -state normal
3760        }
3761
3762        array unset console_cr $w
3763        array unset console_data $w
3764}
3765
3766######################################################################
3767##
3768## ui commands
3769
3770set starting_gitk_msg {Starting gitk... please wait...}
3771
3772proc do_gitk {revs} {
3773        global env ui_status_value starting_gitk_msg
3774
3775        # -- On Windows gitk is severly broken, and right now it seems like
3776        #    nobody cares about fixing it.  The only known workaround is to
3777        #    always delete ~/.gitk before starting the program.
3778        #
3779        if {[is_Windows]} {
3780                catch {file delete [file join $env(HOME) .gitk]}
3781        }
3782
3783        # -- Always start gitk through whatever we were loaded with.  This
3784        #    lets us bypass using shell process on Windows systems.
3785        #
3786        set cmd [info nameofexecutable]
3787        lappend cmd [gitexec gitk]
3788        if {$revs ne {}} {
3789                append cmd { }
3790                append cmd $revs
3791        }
3792
3793        if {[catch {eval exec $cmd &} err]} {
3794                error_popup "Failed to start gitk:\n\n$err"
3795        } else {
3796                set ui_status_value $starting_gitk_msg
3797                after 10000 {
3798                        if {$ui_status_value eq $starting_gitk_msg} {
3799                                set ui_status_value {Ready.}
3800                        }
3801                }
3802        }
3803}
3804
3805proc do_stats {} {
3806        set fd [open "| git count-objects -v" r]
3807        while {[gets $fd line] > 0} {
3808                if {[regexp {^([^:]+): (\d+)$} $line _ name value]} {
3809                        set stats($name) $value
3810                }
3811        }
3812        close $fd
3813
3814        set packed_sz 0
3815        foreach p [glob -directory [gitdir objects pack] \
3816                -type f \
3817                -nocomplain -- *] {
3818                incr packed_sz [file size $p]
3819        }
3820        if {$packed_sz > 0} {
3821                set stats(size-pack) [expr {$packed_sz / 1024}]
3822        }
3823
3824        set w .stats_view
3825        toplevel $w
3826        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
3827
3828        label $w.header -text {Database Statistics} \
3829                -font font_uibold
3830        pack $w.header -side top -fill x
3831
3832        frame $w.buttons -border 1
3833        button $w.buttons.close -text Close \
3834                -font font_ui \
3835                -command [list destroy $w]
3836        button $w.buttons.gc -text {Compress Database} \
3837                -font font_ui \
3838                -command "destroy $w;do_gc"
3839        pack $w.buttons.close -side right
3840        pack $w.buttons.gc -side left
3841        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
3842
3843        frame $w.stat -borderwidth 1 -relief solid
3844        foreach s {
3845                {count           {Number of loose objects}}
3846                {size            {Disk space used by loose objects} { KiB}}
3847                {in-pack         {Number of packed objects}}
3848                {packs           {Number of packs}}
3849                {size-pack       {Disk space used by packed objects} { KiB}}
3850                {prune-packable  {Packed objects waiting for pruning}}
3851                {garbage         {Garbage files}}
3852                } {
3853                set name [lindex $s 0]
3854                set label [lindex $s 1]
3855                if {[catch {set value $stats($name)}]} continue
3856                if {[llength $s] > 2} {
3857                        set value "$value[lindex $s 2]"
3858                }
3859
3860                label $w.stat.l_$name -text "$label:" -anchor w -font font_ui
3861                label $w.stat.v_$name -text $value -anchor w -font font_ui
3862                grid $w.stat.l_$name $w.stat.v_$name -sticky we -padx {0 5}
3863        }
3864        pack $w.stat -pady 10 -padx 10
3865
3866        bind $w <Visibility> "grab $w; focus $w"
3867        bind $w <Key-Escape> [list destroy $w]
3868        bind $w <Key-Return> [list destroy $w]
3869        wm title $w "[appname] ([reponame]): Database Statistics"
3870        tkwait window $w
3871}
3872
3873proc do_gc {} {
3874        set w [new_console {gc} {Compressing the object database}]
3875        console_chain {
3876                {console_exec {git pack-refs --prune}}
3877                {console_exec {git reflog expire --all}}
3878                {console_exec {git repack -a -d -l}}
3879                {console_exec {git rerere gc}}
3880        } $w
3881}
3882
3883proc do_fsck_objects {} {
3884        set w [new_console {fsck-objects} \
3885                {Verifying the object database with fsck-objects}]
3886        set cmd [list git fsck-objects]
3887        lappend cmd --full
3888        lappend cmd --cache
3889        lappend cmd --strict
3890        console_exec $w $cmd console_done
3891}
3892
3893set is_quitting 0
3894
3895proc do_quit {} {
3896        global ui_comm is_quitting repo_config commit_type
3897
3898        if {$is_quitting} return
3899        set is_quitting 1
3900
3901        # -- Stash our current commit buffer.
3902        #
3903        set save [gitdir GITGUI_MSG]
3904        set msg [string trim [$ui_comm get 0.0 end]]
3905        regsub -all -line {[ \r\t]+$} $msg {} msg
3906        if {(![string match amend* $commit_type]
3907                || [$ui_comm edit modified])
3908                && $msg ne {}} {
3909                catch {
3910                        set fd [open $save w]
3911                        puts -nonewline $fd $msg
3912                        close $fd
3913                }
3914        } else {
3915                catch {file delete $save}
3916        }
3917
3918        # -- Stash our current window geometry into this repository.
3919        #
3920        set cfg_geometry [list]
3921        lappend cfg_geometry [wm geometry .]
3922        lappend cfg_geometry [lindex [.vpane sash coord 0] 1]
3923        lappend cfg_geometry [lindex [.vpane.files sash coord 0] 0]
3924        if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
3925                set rc_geometry {}
3926        }
3927        if {$cfg_geometry ne $rc_geometry} {
3928                catch {exec git repo-config gui.geometry $cfg_geometry}
3929        }
3930
3931        destroy .
3932}
3933
3934proc do_rescan {} {
3935        rescan {set ui_status_value {Ready.}}
3936}
3937
3938proc unstage_helper {txt paths} {
3939        global file_states current_diff_path
3940
3941        if {![lock_index begin-update]} return
3942
3943        set pathList [list]
3944        set after {}
3945        foreach path $paths {
3946                switch -glob -- [lindex $file_states($path) 0] {
3947                A? -
3948                M? -
3949                D? {
3950                        lappend pathList $path
3951                        if {$path eq $current_diff_path} {
3952                                set after {reshow_diff;}
3953                        }
3954                }
3955                }
3956        }
3957        if {$pathList eq {}} {
3958                unlock_index
3959        } else {
3960                update_indexinfo \
3961                        $txt \
3962                        $pathList \
3963                        [concat $after {set ui_status_value {Ready.}}]
3964        }
3965}
3966
3967proc do_unstage_selection {} {
3968        global current_diff_path selected_paths
3969
3970        if {[array size selected_paths] > 0} {
3971                unstage_helper \
3972                        {Unstaging selected files from commit} \
3973                        [array names selected_paths]
3974        } elseif {$current_diff_path ne {}} {
3975                unstage_helper \
3976                        "Unstaging [short_path $current_diff_path] from commit" \
3977                        [list $current_diff_path]
3978        }
3979}
3980
3981proc add_helper {txt paths} {
3982        global file_states current_diff_path
3983
3984        if {![lock_index begin-update]} return
3985
3986        set pathList [list]
3987        set after {}
3988        foreach path $paths {
3989                switch -glob -- [lindex $file_states($path) 0] {
3990                _O -
3991                ?M -
3992                ?D -
3993                U? {
3994                        lappend pathList $path
3995                        if {$path eq $current_diff_path} {
3996                                set after {reshow_diff;}
3997                        }
3998                }
3999                }
4000        }
4001        if {$pathList eq {}} {
4002                unlock_index
4003        } else {
4004                update_index \
4005                        $txt \
4006                        $pathList \
4007                        [concat $after {set ui_status_value {Ready to commit.}}]
4008        }
4009}
4010
4011proc do_add_selection {} {
4012        global current_diff_path selected_paths
4013
4014        if {[array size selected_paths] > 0} {
4015                add_helper \
4016                        {Adding selected files} \
4017                        [array names selected_paths]
4018        } elseif {$current_diff_path ne {}} {
4019                add_helper \
4020                        "Adding [short_path $current_diff_path]" \
4021                        [list $current_diff_path]
4022        }
4023}
4024
4025proc do_add_all {} {
4026        global file_states
4027
4028        set paths [list]
4029        foreach path [array names file_states] {
4030                switch -glob -- [lindex $file_states($path) 0] {
4031                U? {continue}
4032                ?M -
4033                ?D {lappend paths $path}
4034                }
4035        }
4036        add_helper {Adding all changed files} $paths
4037}
4038
4039proc revert_helper {txt paths} {
4040        global file_states current_diff_path
4041
4042        if {![lock_index begin-update]} return
4043
4044        set pathList [list]
4045        set after {}
4046        foreach path $paths {
4047                switch -glob -- [lindex $file_states($path) 0] {
4048                U? {continue}
4049                ?M -
4050                ?D {
4051                        lappend pathList $path
4052                        if {$path eq $current_diff_path} {
4053                                set after {reshow_diff;}
4054                        }
4055                }
4056                }
4057        }
4058
4059        set n [llength $pathList]
4060        if {$n == 0} {
4061                unlock_index
4062                return
4063        } elseif {$n == 1} {
4064                set s "[short_path [lindex $pathList]]"
4065        } else {
4066                set s "these $n files"
4067        }
4068
4069        set reply [tk_dialog \
4070                .confirm_revert \
4071                "[appname] ([reponame])" \
4072                "Revert changes in $s?
4073
4074Any unadded changes will be permanently lost by the revert." \
4075                question \
4076                1 \
4077                {Do Nothing} \
4078                {Revert Changes} \
4079                ]
4080        if {$reply == 1} {
4081                checkout_index \
4082                        $txt \
4083                        $pathList \
4084                        [concat $after {set ui_status_value {Ready.}}]
4085        } else {
4086                unlock_index
4087        }
4088}
4089
4090proc do_revert_selection {} {
4091        global current_diff_path selected_paths
4092
4093        if {[array size selected_paths] > 0} {
4094                revert_helper \
4095                        {Reverting selected files} \
4096                        [array names selected_paths]
4097        } elseif {$current_diff_path ne {}} {
4098                revert_helper \
4099                        "Reverting [short_path $current_diff_path]" \
4100                        [list $current_diff_path]
4101        }
4102}
4103
4104proc do_signoff {} {
4105        global ui_comm
4106
4107        set me [committer_ident]
4108        if {$me eq {}} return
4109
4110        set sob "Signed-off-by: $me"
4111        set last [$ui_comm get {end -1c linestart} {end -1c}]
4112        if {$last ne $sob} {
4113                $ui_comm edit separator
4114                if {$last ne {}
4115                        && ![regexp {^[A-Z][A-Za-z]*-[A-Za-z-]+: *} $last]} {
4116                        $ui_comm insert end "\n"
4117                }
4118                $ui_comm insert end "\n$sob"
4119                $ui_comm edit separator
4120                $ui_comm see end
4121        }
4122}
4123
4124proc do_select_commit_type {} {
4125        global commit_type selected_commit_type
4126
4127        if {$selected_commit_type eq {new}
4128                && [string match amend* $commit_type]} {
4129                create_new_commit
4130        } elseif {$selected_commit_type eq {amend}
4131                && ![string match amend* $commit_type]} {
4132                load_last_commit
4133
4134                # The amend request was rejected...
4135                #
4136                if {![string match amend* $commit_type]} {
4137                        set selected_commit_type new
4138                }
4139        }
4140}
4141
4142proc do_commit {} {
4143        commit_tree
4144}
4145
4146proc do_about {} {
4147        global appvers copyright
4148        global tcl_patchLevel tk_patchLevel
4149
4150        set w .about_dialog
4151        toplevel $w
4152        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
4153
4154        label $w.header -text "About [appname]" \
4155                -font font_uibold
4156        pack $w.header -side top -fill x
4157
4158        frame $w.buttons
4159        button $w.buttons.close -text {Close} \
4160                -font font_ui \
4161                -command [list destroy $w]
4162        pack $w.buttons.close -side right
4163        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
4164
4165        label $w.desc \
4166                -text "[appname] - a commit creation tool for Git.
4167$copyright" \
4168                -padx 5 -pady 5 \
4169                -justify left \
4170                -anchor w \
4171                -borderwidth 1 \
4172                -relief solid \
4173                -font font_ui
4174        pack $w.desc -side top -fill x -padx 5 -pady 5
4175
4176        set v {}
4177        append v "[appname] version $appvers\n"
4178        append v "[exec git version]\n"
4179        append v "\n"
4180        if {$tcl_patchLevel eq $tk_patchLevel} {
4181                append v "Tcl/Tk version $tcl_patchLevel"
4182        } else {
4183                append v "Tcl version $tcl_patchLevel"
4184                append v ", Tk version $tk_patchLevel"
4185        }
4186
4187        label $w.vers \
4188                -text $v \
4189                -padx 5 -pady 5 \
4190                -justify left \
4191                -anchor w \
4192                -borderwidth 1 \
4193                -relief solid \
4194                -font font_ui
4195        pack $w.vers -side top -fill x -padx 5 -pady 5
4196
4197        menu $w.ctxm -tearoff 0
4198        $w.ctxm add command \
4199                -label {Copy} \
4200                -font font_ui \
4201                -command "
4202                clipboard clear
4203                clipboard append -format STRING -type STRING -- \[$w.vers cget -text\]
4204        "
4205
4206        bind $w <Visibility> "grab $w; focus $w"
4207        bind $w <Key-Escape> "destroy $w"
4208        bind_button3 $w.vers "tk_popup $w.ctxm %X %Y; grab $w; focus $w"
4209        wm title $w "About [appname]"
4210        tkwait window $w
4211}
4212
4213proc do_options {} {
4214        global repo_config global_config font_descs
4215        global repo_config_new global_config_new
4216
4217        array unset repo_config_new
4218        array unset global_config_new
4219        foreach name [array names repo_config] {
4220                set repo_config_new($name) $repo_config($name)
4221        }
4222        load_config 1
4223        foreach name [array names repo_config] {
4224                switch -- $name {
4225                gui.diffcontext {continue}
4226                }
4227                set repo_config_new($name) $repo_config($name)
4228        }
4229        foreach name [array names global_config] {
4230                set global_config_new($name) $global_config($name)
4231        }
4232
4233        set w .options_editor
4234        toplevel $w
4235        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
4236
4237        label $w.header -text "[appname] Options" \
4238                -font font_uibold
4239        pack $w.header -side top -fill x
4240
4241        frame $w.buttons
4242        button $w.buttons.restore -text {Restore Defaults} \
4243                -font font_ui \
4244                -command do_restore_defaults
4245        pack $w.buttons.restore -side left
4246        button $w.buttons.save -text Save \
4247                -font font_ui \
4248                -command [list do_save_config $w]
4249        pack $w.buttons.save -side right
4250        button $w.buttons.cancel -text {Cancel} \
4251                -font font_ui \
4252                -command [list destroy $w]
4253        pack $w.buttons.cancel -side right -padx 5
4254        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
4255
4256        labelframe $w.repo -text "[reponame] Repository" \
4257                -font font_ui
4258        labelframe $w.global -text {Global (All Repositories)} \
4259                -font font_ui
4260        pack $w.repo -side left -fill both -expand 1 -pady 5 -padx 5
4261        pack $w.global -side right -fill both -expand 1 -pady 5 -padx 5
4262
4263        set optid 0
4264        foreach option {
4265                {b merge.summary {Summarize Merge Commits}}
4266                {i-1..5 merge.verbosity {Merge Verbosity}}
4267
4268                {b gui.trustmtime  {Trust File Modification Timestamps}}
4269                {i-1..99 gui.diffcontext {Number of Diff Context Lines}}
4270                {t gui.newbranchtemplate {New Branch Name Template}}
4271                } {
4272                set type [lindex $option 0]
4273                set name [lindex $option 1]
4274                set text [lindex $option 2]
4275                incr optid
4276                foreach f {repo global} {
4277                        switch -glob -- $type {
4278                        b {
4279                                checkbutton $w.$f.$optid -text $text \
4280                                        -variable ${f}_config_new($name) \
4281                                        -onvalue true \
4282                                        -offvalue false \
4283                                        -font font_ui
4284                                pack $w.$f.$optid -side top -anchor w
4285                        }
4286                        i-* {
4287                                regexp -- {-(\d+)\.\.(\d+)$} $type _junk min max
4288                                frame $w.$f.$optid
4289                                label $w.$f.$optid.l -text "$text:" -font font_ui
4290                                pack $w.$f.$optid.l -side left -anchor w -fill x
4291                                spinbox $w.$f.$optid.v \
4292                                        -textvariable ${f}_config_new($name) \
4293                                        -from $min \
4294                                        -to $max \
4295                                        -increment 1 \
4296                                        -width [expr {1 + [string length $max]}] \
4297                                        -font font_ui
4298                                bind $w.$f.$optid.v <FocusIn> {%W selection range 0 end}
4299                                pack $w.$f.$optid.v -side right -anchor e -padx 5
4300                                pack $w.$f.$optid -side top -anchor w -fill x
4301                        }
4302                        t {
4303                                frame $w.$f.$optid
4304                                label $w.$f.$optid.l -text "$text:" -font font_ui
4305                                entry $w.$f.$optid.v \
4306                                        -borderwidth 1 \
4307                                        -relief sunken \
4308                                        -width 20 \
4309                                        -textvariable ${f}_config_new($name) \
4310                                        -font font_ui
4311                                pack $w.$f.$optid.l -side left -anchor w
4312                                pack $w.$f.$optid.v -side left -anchor w \
4313                                        -fill x -expand 1 \
4314                                        -padx 5
4315                                pack $w.$f.$optid -side top -anchor w -fill x
4316                        }
4317                        }
4318                }
4319        }
4320
4321        set all_fonts [lsort [font families]]
4322        foreach option $font_descs {
4323                set name [lindex $option 0]
4324                set font [lindex $option 1]
4325                set text [lindex $option 2]
4326
4327                set global_config_new(gui.$font^^family) \
4328                        [font configure $font -family]
4329                set global_config_new(gui.$font^^size) \
4330                        [font configure $font -size]
4331
4332                frame $w.global.$name
4333                label $w.global.$name.l -text "$text:" -font font_ui
4334                pack $w.global.$name.l -side left -anchor w -fill x
4335                eval tk_optionMenu $w.global.$name.family \
4336                        global_config_new(gui.$font^^family) \
4337                        $all_fonts
4338                spinbox $w.global.$name.size \
4339                        -textvariable global_config_new(gui.$font^^size) \
4340                        -from 2 -to 80 -increment 1 \
4341                        -width 3 \
4342                        -font font_ui
4343                bind $w.global.$name.size <FocusIn> {%W selection range 0 end}
4344                pack $w.global.$name.size -side right -anchor e
4345                pack $w.global.$name.family -side right -anchor e
4346                pack $w.global.$name -side top -anchor w -fill x
4347        }
4348
4349        bind $w <Visibility> "grab $w; focus $w"
4350        bind $w <Key-Escape> "destroy $w"
4351        wm title $w "[appname] ([reponame]): Options"
4352        tkwait window $w
4353}
4354
4355proc do_restore_defaults {} {
4356        global font_descs default_config repo_config
4357        global repo_config_new global_config_new
4358
4359        foreach name [array names default_config] {
4360                set repo_config_new($name) $default_config($name)
4361                set global_config_new($name) $default_config($name)
4362        }
4363
4364        foreach option $font_descs {
4365                set name [lindex $option 0]
4366                set repo_config(gui.$name) $default_config(gui.$name)
4367        }
4368        apply_config
4369
4370        foreach option $font_descs {
4371                set name [lindex $option 0]
4372                set font [lindex $option 1]
4373                set global_config_new(gui.$font^^family) \
4374                        [font configure $font -family]
4375                set global_config_new(gui.$font^^size) \
4376                        [font configure $font -size]
4377        }
4378}
4379
4380proc do_save_config {w} {
4381        if {[catch {save_config} err]} {
4382                error_popup "Failed to completely save options:\n\n$err"
4383        }
4384        reshow_diff
4385        destroy $w
4386}
4387
4388proc do_windows_shortcut {} {
4389        global argv0
4390
4391        set fn [tk_getSaveFile \
4392                -parent . \
4393                -title "[appname] ([reponame]): Create Desktop Icon" \
4394                -initialfile "Git [reponame].bat"]
4395        if {$fn != {}} {
4396                if {[catch {
4397                                set fd [open $fn w]
4398                                puts $fd "@ECHO Entering [reponame]"
4399                                puts $fd "@ECHO Starting git-gui... please wait..."
4400                                puts $fd "@SET PATH=[file normalize [gitexec]];%PATH%"
4401                                puts $fd "@SET GIT_DIR=[file normalize [gitdir]]"
4402                                puts -nonewline $fd "@\"[info nameofexecutable]\""
4403                                puts $fd " \"[file normalize $argv0]\""
4404                                close $fd
4405                        } err]} {
4406                        error_popup "Cannot write script:\n\n$err"
4407                }
4408        }
4409}
4410
4411proc do_cygwin_shortcut {} {
4412        global argv0
4413
4414        if {[catch {
4415                set desktop [exec cygpath \
4416                        --windows \
4417                        --absolute \
4418                        --long-name \
4419                        --desktop]
4420                }]} {
4421                        set desktop .
4422        }
4423        set fn [tk_getSaveFile \
4424                -parent . \
4425                -title "[appname] ([reponame]): Create Desktop Icon" \
4426                -initialdir $desktop \
4427                -initialfile "Git [reponame].bat"]
4428        if {$fn != {}} {
4429                if {[catch {
4430                                set fd [open $fn w]
4431                                set sh [exec cygpath \
4432                                        --windows \
4433                                        --absolute \
4434                                        /bin/sh]
4435                                set me [exec cygpath \
4436                                        --unix \
4437                                        --absolute \
4438                                        $argv0]
4439                                set gd [exec cygpath \
4440                                        --unix \
4441                                        --absolute \
4442                                        [gitdir]]
4443                                set gw [exec cygpath \
4444                                        --windows \
4445                                        --absolute \
4446                                        [file dirname [gitdir]]]
4447                                regsub -all ' $me "'\\''" me
4448                                regsub -all ' $gd "'\\''" gd
4449                                puts $fd "@ECHO Entering $gw"
4450                                puts $fd "@ECHO Starting git-gui... please wait..."
4451                                puts -nonewline $fd "@\"$sh\" --login -c \""
4452                                puts -nonewline $fd "GIT_DIR='$gd'"
4453                                puts -nonewline $fd " '$me'"
4454                                puts $fd "&\""
4455                                close $fd
4456                        } err]} {
4457                        error_popup "Cannot write script:\n\n$err"
4458                }
4459        }
4460}
4461
4462proc do_macosx_app {} {
4463        global argv0 env
4464
4465        set fn [tk_getSaveFile \
4466                -parent . \
4467                -title "[appname] ([reponame]): Create Desktop Icon" \
4468                -initialdir [file join $env(HOME) Desktop] \
4469                -initialfile "Git [reponame].app"]
4470        if {$fn != {}} {
4471                if {[catch {
4472                                set Contents [file join $fn Contents]
4473                                set MacOS [file join $Contents MacOS]
4474                                set exe [file join $MacOS git-gui]
4475
4476                                file mkdir $MacOS
4477
4478                                set fd [open [file join $Contents Info.plist] w]
4479                                puts $fd {<?xml version="1.0" encoding="UTF-8"?>
4480<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
4481<plist version="1.0">
4482<dict>
4483        <key>CFBundleDevelopmentRegion</key>
4484        <string>English</string>
4485        <key>CFBundleExecutable</key>
4486        <string>git-gui</string>
4487        <key>CFBundleIdentifier</key>
4488        <string>org.spearce.git-gui</string>
4489        <key>CFBundleInfoDictionaryVersion</key>
4490        <string>6.0</string>
4491        <key>CFBundlePackageType</key>
4492        <string>APPL</string>
4493        <key>CFBundleSignature</key>
4494        <string>????</string>
4495        <key>CFBundleVersion</key>
4496        <string>1.0</string>
4497        <key>NSPrincipalClass</key>
4498        <string>NSApplication</string>
4499</dict>
4500</plist>}
4501                                close $fd
4502
4503                                set fd [open $exe w]
4504                                set gd [file normalize [gitdir]]
4505                                set ep [file normalize [gitexec]]
4506                                regsub -all ' $gd "'\\''" gd
4507                                regsub -all ' $ep "'\\''" ep
4508                                puts $fd "#!/bin/sh"
4509                                foreach name [array names env] {
4510                                        if {[string match GIT_* $name]} {
4511                                                regsub -all ' $env($name) "'\\''" v
4512                                                puts $fd "export $name='$v'"
4513                                        }
4514                                }
4515                                puts $fd "export PATH='$ep':\$PATH"
4516                                puts $fd "export GIT_DIR='$gd'"
4517                                puts $fd "exec [file normalize $argv0]"
4518                                close $fd
4519
4520                                file attributes $exe -permissions u+x,g+x,o+x
4521                        } err]} {
4522                        error_popup "Cannot write icon:\n\n$err"
4523                }
4524        }
4525}
4526
4527proc toggle_or_diff {w x y} {
4528        global file_states file_lists current_diff_path ui_index ui_workdir
4529        global last_clicked selected_paths
4530
4531        set pos [split [$w index @$x,$y] .]
4532        set lno [lindex $pos 0]
4533        set col [lindex $pos 1]
4534        set path [lindex $file_lists($w) [expr {$lno - 1}]]
4535        if {$path eq {}} {
4536                set last_clicked {}
4537                return
4538        }
4539
4540        set last_clicked [list $w $lno]
4541        array unset selected_paths
4542        $ui_index tag remove in_sel 0.0 end
4543        $ui_workdir tag remove in_sel 0.0 end
4544
4545        if {$col == 0} {
4546                if {$current_diff_path eq $path} {
4547                        set after {reshow_diff;}
4548                } else {
4549                        set after {}
4550                }
4551                if {$w eq $ui_index} {
4552                        update_indexinfo \
4553                                "Unstaging [short_path $path] from commit" \
4554                                [list $path] \
4555                                [concat $after {set ui_status_value {Ready.}}]
4556                } elseif {$w eq $ui_workdir} {
4557                        update_index \
4558                                "Adding [short_path $path]" \
4559                                [list $path] \
4560                                [concat $after {set ui_status_value {Ready.}}]
4561                }
4562        } else {
4563                show_diff $path $w $lno
4564        }
4565}
4566
4567proc add_one_to_selection {w x y} {
4568        global file_lists last_clicked selected_paths
4569
4570        set lno [lindex [split [$w index @$x,$y] .] 0]
4571        set path [lindex $file_lists($w) [expr {$lno - 1}]]
4572        if {$path eq {}} {
4573                set last_clicked {}
4574                return
4575        }
4576
4577        if {$last_clicked ne {}
4578                && [lindex $last_clicked 0] ne $w} {
4579                array unset selected_paths
4580                [lindex $last_clicked 0] tag remove in_sel 0.0 end
4581        }
4582
4583        set last_clicked [list $w $lno]
4584        if {[catch {set in_sel $selected_paths($path)}]} {
4585                set in_sel 0
4586        }
4587        if {$in_sel} {
4588                unset selected_paths($path)
4589                $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
4590        } else {
4591                set selected_paths($path) 1
4592                $w tag add in_sel $lno.0 [expr {$lno + 1}].0
4593        }
4594}
4595
4596proc add_range_to_selection {w x y} {
4597        global file_lists last_clicked selected_paths
4598
4599        if {[lindex $last_clicked 0] ne $w} {
4600                toggle_or_diff $w $x $y
4601                return
4602        }
4603
4604        set lno [lindex [split [$w index @$x,$y] .] 0]
4605        set lc [lindex $last_clicked 1]
4606        if {$lc < $lno} {
4607                set begin $lc
4608                set end $lno
4609        } else {
4610                set begin $lno
4611                set end $lc
4612        }
4613
4614        foreach path [lrange $file_lists($w) \
4615                [expr {$begin - 1}] \
4616                [expr {$end - 1}]] {
4617                set selected_paths($path) 1
4618        }
4619        $w tag add in_sel $begin.0 [expr {$end + 1}].0
4620}
4621
4622######################################################################
4623##
4624## config defaults
4625
4626set cursor_ptr arrow
4627font create font_diff -family Courier -size 10
4628font create font_ui
4629catch {
4630        label .dummy
4631        eval font configure font_ui [font actual [.dummy cget -font]]
4632        destroy .dummy
4633}
4634
4635font create font_uibold
4636font create font_diffbold
4637
4638if {[is_Windows]} {
4639        set M1B Control
4640        set M1T Ctrl
4641} elseif {[is_MacOSX]} {
4642        set M1B M1
4643        set M1T Cmd
4644} else {
4645        set M1B M1
4646        set M1T M1
4647}
4648
4649proc apply_config {} {
4650        global repo_config font_descs
4651
4652        foreach option $font_descs {
4653                set name [lindex $option 0]
4654                set font [lindex $option 1]
4655                if {[catch {
4656                        foreach {cn cv} $repo_config(gui.$name) {
4657                                font configure $font $cn $cv
4658                        }
4659                        } err]} {
4660                        error_popup "Invalid font specified in gui.$name:\n\n$err"
4661                }
4662                foreach {cn cv} [font configure $font] {
4663                        font configure ${font}bold $cn $cv
4664                }
4665                font configure ${font}bold -weight bold
4666        }
4667}
4668
4669set default_config(merge.summary) false
4670set default_config(merge.verbosity) 2
4671set default_config(gui.trustmtime) false
4672set default_config(gui.diffcontext) 5
4673set default_config(gui.newbranchtemplate) {}
4674set default_config(gui.fontui) [font configure font_ui]
4675set default_config(gui.fontdiff) [font configure font_diff]
4676set font_descs {
4677        {fontui   font_ui   {Main Font}}
4678        {fontdiff font_diff {Diff/Console Font}}
4679}
4680load_config 0
4681apply_config
4682
4683######################################################################
4684##
4685## ui construction
4686
4687# -- Menu Bar
4688#
4689menu .mbar -tearoff 0
4690.mbar add cascade -label Repository -menu .mbar.repository
4691.mbar add cascade -label Edit -menu .mbar.edit
4692if {!$single_commit} {
4693        .mbar add cascade -label Branch -menu .mbar.branch
4694}
4695.mbar add cascade -label Commit -menu .mbar.commit
4696if {!$single_commit} {
4697        .mbar add cascade -label Merge -menu .mbar.merge
4698        .mbar add cascade -label Fetch -menu .mbar.fetch
4699        .mbar add cascade -label Push -menu .mbar.push
4700}
4701. configure -menu .mbar
4702
4703# -- Repository Menu
4704#
4705menu .mbar.repository
4706
4707.mbar.repository add command \
4708        -label {Browse Current Branch} \
4709        -command new_browser \
4710        -font font_ui
4711.mbar.repository add separator
4712
4713.mbar.repository add command \
4714        -label {Visualize Current Branch} \
4715        -command {do_gitk {}} \
4716        -font font_ui
4717.mbar.repository add command \
4718        -label {Visualize All Branches} \
4719        -command {do_gitk {--all}} \
4720        -font font_ui
4721.mbar.repository add separator
4722
4723if {!$single_commit} {
4724        .mbar.repository add command -label {Database Statistics} \
4725                -command do_stats \
4726                -font font_ui
4727
4728        .mbar.repository add command -label {Compress Database} \
4729                -command do_gc \
4730                -font font_ui
4731
4732        .mbar.repository add command -label {Verify Database} \
4733                -command do_fsck_objects \
4734                -font font_ui
4735
4736        .mbar.repository add separator
4737
4738        if {[is_Cygwin]} {
4739                .mbar.repository add command \
4740                        -label {Create Desktop Icon} \
4741                        -command do_cygwin_shortcut \
4742                        -font font_ui
4743        } elseif {[is_Windows]} {
4744                .mbar.repository add command \
4745                        -label {Create Desktop Icon} \
4746                        -command do_windows_shortcut \
4747                        -font font_ui
4748        } elseif {[is_MacOSX]} {
4749                .mbar.repository add command \
4750                        -label {Create Desktop Icon} \
4751                        -command do_macosx_app \
4752                        -font font_ui
4753        }
4754}
4755
4756.mbar.repository add command -label Quit \
4757        -command do_quit \
4758        -accelerator $M1T-Q \
4759        -font font_ui
4760
4761# -- Edit Menu
4762#
4763menu .mbar.edit
4764.mbar.edit add command -label Undo \
4765        -command {catch {[focus] edit undo}} \
4766        -accelerator $M1T-Z \
4767        -font font_ui
4768.mbar.edit add command -label Redo \
4769        -command {catch {[focus] edit redo}} \
4770        -accelerator $M1T-Y \
4771        -font font_ui
4772.mbar.edit add separator
4773.mbar.edit add command -label Cut \
4774        -command {catch {tk_textCut [focus]}} \
4775        -accelerator $M1T-X \
4776        -font font_ui
4777.mbar.edit add command -label Copy \
4778        -command {catch {tk_textCopy [focus]}} \
4779        -accelerator $M1T-C \
4780        -font font_ui
4781.mbar.edit add command -label Paste \
4782        -command {catch {tk_textPaste [focus]; [focus] see insert}} \
4783        -accelerator $M1T-V \
4784        -font font_ui
4785.mbar.edit add command -label Delete \
4786        -command {catch {[focus] delete sel.first sel.last}} \
4787        -accelerator Del \
4788        -font font_ui
4789.mbar.edit add separator
4790.mbar.edit add command -label {Select All} \
4791        -command {catch {[focus] tag add sel 0.0 end}} \
4792        -accelerator $M1T-A \
4793        -font font_ui
4794
4795# -- Branch Menu
4796#
4797if {!$single_commit} {
4798        menu .mbar.branch
4799
4800        .mbar.branch add command -label {Create...} \
4801                -command do_create_branch \
4802                -accelerator $M1T-N \
4803                -font font_ui
4804        lappend disable_on_lock [list .mbar.branch entryconf \
4805                [.mbar.branch index last] -state]
4806
4807        .mbar.branch add command -label {Delete...} \
4808                -command do_delete_branch \
4809                -font font_ui
4810        lappend disable_on_lock [list .mbar.branch entryconf \
4811                [.mbar.branch index last] -state]
4812}
4813
4814# -- Commit Menu
4815#
4816menu .mbar.commit
4817
4818.mbar.commit add radiobutton \
4819        -label {New Commit} \
4820        -command do_select_commit_type \
4821        -variable selected_commit_type \
4822        -value new \
4823        -font font_ui
4824lappend disable_on_lock \
4825        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4826
4827.mbar.commit add radiobutton \
4828        -label {Amend Last Commit} \
4829        -command do_select_commit_type \
4830        -variable selected_commit_type \
4831        -value amend \
4832        -font font_ui
4833lappend disable_on_lock \
4834        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4835
4836.mbar.commit add separator
4837
4838.mbar.commit add command -label Rescan \
4839        -command do_rescan \
4840        -accelerator F5 \
4841        -font font_ui
4842lappend disable_on_lock \
4843        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4844
4845.mbar.commit add command -label {Add To Commit} \
4846        -command do_add_selection \
4847        -font font_ui
4848lappend disable_on_lock \
4849        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4850
4851.mbar.commit add command -label {Add All To Commit} \
4852        -command do_add_all \
4853        -accelerator $M1T-I \
4854        -font font_ui
4855lappend disable_on_lock \
4856        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4857
4858.mbar.commit add command -label {Unstage From Commit} \
4859        -command do_unstage_selection \
4860        -font font_ui
4861lappend disable_on_lock \
4862        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4863
4864.mbar.commit add command -label {Revert Changes} \
4865        -command do_revert_selection \
4866        -font font_ui
4867lappend disable_on_lock \
4868        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4869
4870.mbar.commit add separator
4871
4872.mbar.commit add command -label {Sign Off} \
4873        -command do_signoff \
4874        -accelerator $M1T-S \
4875        -font font_ui
4876
4877.mbar.commit add command -label Commit \
4878        -command do_commit \
4879        -accelerator $M1T-Return \
4880        -font font_ui
4881lappend disable_on_lock \
4882        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4883
4884if {[is_MacOSX]} {
4885        # -- Apple Menu (Mac OS X only)
4886        #
4887        .mbar add cascade -label Apple -menu .mbar.apple
4888        menu .mbar.apple
4889
4890        .mbar.apple add command -label "About [appname]" \
4891                -command do_about \
4892                -font font_ui
4893        .mbar.apple add command -label "[appname] Options..." \
4894                -command do_options \
4895                -font font_ui
4896} else {
4897        # -- Edit Menu
4898        #
4899        .mbar.edit add separator
4900        .mbar.edit add command -label {Options...} \
4901                -command do_options \
4902                -font font_ui
4903
4904        # -- Tools Menu
4905        #
4906        if {[file exists /usr/local/miga/lib/gui-miga]
4907                && [file exists .pvcsrc]} {
4908        proc do_miga {} {
4909                global ui_status_value
4910                if {![lock_index update]} return
4911                set cmd [list sh --login -c "/usr/local/miga/lib/gui-miga \"[pwd]\""]
4912                set miga_fd [open "|$cmd" r]
4913                fconfigure $miga_fd -blocking 0
4914                fileevent $miga_fd readable [list miga_done $miga_fd]
4915                set ui_status_value {Running miga...}
4916        }
4917        proc miga_done {fd} {
4918                read $fd 512
4919                if {[eof $fd]} {
4920                        close $fd
4921                        unlock_index
4922                        rescan [list set ui_status_value {Ready.}]
4923                }
4924        }
4925        .mbar add cascade -label Tools -menu .mbar.tools
4926        menu .mbar.tools
4927        .mbar.tools add command -label "Migrate" \
4928                -command do_miga \
4929                -font font_ui
4930        lappend disable_on_lock \
4931                [list .mbar.tools entryconf [.mbar.tools index last] -state]
4932        }
4933}
4934
4935# -- Help Menu
4936#
4937.mbar add cascade -label Help -menu .mbar.help
4938menu .mbar.help
4939
4940if {![is_MacOSX]} {
4941        .mbar.help add command -label "About [appname]" \
4942                -command do_about \
4943                -font font_ui
4944}
4945
4946set browser {}
4947catch {set browser $repo_config(instaweb.browser)}
4948set doc_path [file dirname [gitexec]]
4949set doc_path [file join $doc_path Documentation index.html]
4950
4951if {[is_Cygwin]} {
4952        set doc_path [exec cygpath --windows $doc_path]
4953}
4954
4955if {$browser eq {}} {
4956        if {[is_MacOSX]} {
4957                set browser open
4958        } elseif {[is_Cygwin]} {
4959                set program_files [file dirname [exec cygpath --windir]]
4960                set program_files [file join $program_files {Program Files}]
4961                set firefox [file join $program_files {Mozilla Firefox} firefox.exe]
4962                set ie [file join $program_files {Internet Explorer} IEXPLORE.EXE]
4963                if {[file exists $firefox]} {
4964                        set browser $firefox
4965                } elseif {[file exists $ie]} {
4966                        set browser $ie
4967                }
4968                unset program_files firefox ie
4969        }
4970}
4971
4972if {[file isfile $doc_path]} {
4973        set doc_url "file:$doc_path"
4974} else {
4975        set doc_url {http://www.kernel.org/pub/software/scm/git/docs/}
4976}
4977
4978if {$browser ne {}} {
4979        .mbar.help add command -label {Online Documentation} \
4980                -command [list exec $browser $doc_url &] \
4981                -font font_ui
4982}
4983unset browser doc_path doc_url
4984
4985# -- Branch Control
4986#
4987frame .branch \
4988        -borderwidth 1 \
4989        -relief sunken
4990label .branch.l1 \
4991        -text {Current Branch:} \
4992        -anchor w \
4993        -justify left \
4994        -font font_ui
4995label .branch.cb \
4996        -textvariable current_branch \
4997        -anchor w \
4998        -justify left \
4999        -font font_ui
5000pack .branch.l1 -side left
5001pack .branch.cb -side left -fill x
5002pack .branch -side top -fill x
5003
5004if {!$single_commit} {
5005        menu .mbar.merge
5006        .mbar.merge add command -label {Local Merge...} \
5007                -command do_local_merge \
5008                -font font_ui
5009        lappend disable_on_lock \
5010                [list .mbar.merge entryconf [.mbar.merge index last] -state]
5011        .mbar.merge add command -label {Abort Merge...} \
5012                -command do_reset_hard \
5013                -font font_ui
5014        lappend disable_on_lock \
5015                [list .mbar.merge entryconf [.mbar.merge index last] -state]
5016
5017
5018        menu .mbar.fetch
5019
5020        menu .mbar.push
5021        .mbar.push add command -label {Push...} \
5022                -command do_push_anywhere \
5023                -font font_ui
5024}
5025
5026# -- Main Window Layout
5027#
5028panedwindow .vpane -orient vertical
5029panedwindow .vpane.files -orient horizontal
5030.vpane add .vpane.files -sticky nsew -height 100 -width 200
5031pack .vpane -anchor n -side top -fill both -expand 1
5032
5033# -- Index File List
5034#
5035frame .vpane.files.index -height 100 -width 200
5036label .vpane.files.index.title -text {Changes To Be Committed} \
5037        -background green \
5038        -font font_ui
5039text $ui_index -background white -borderwidth 0 \
5040        -width 20 -height 10 \
5041        -wrap none \
5042        -font font_ui \
5043        -cursor $cursor_ptr \
5044        -xscrollcommand {.vpane.files.index.sx set} \
5045        -yscrollcommand {.vpane.files.index.sy set} \
5046        -state disabled
5047scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
5048scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
5049pack .vpane.files.index.title -side top -fill x
5050pack .vpane.files.index.sx -side bottom -fill x
5051pack .vpane.files.index.sy -side right -fill y
5052pack $ui_index -side left -fill both -expand 1
5053.vpane.files add .vpane.files.index -sticky nsew
5054
5055# -- Working Directory File List
5056#
5057frame .vpane.files.workdir -height 100 -width 200
5058label .vpane.files.workdir.title -text {Changed But Not Updated} \
5059        -background red \
5060        -font font_ui
5061text $ui_workdir -background white -borderwidth 0 \
5062        -width 20 -height 10 \
5063        -wrap none \
5064        -font font_ui \
5065        -cursor $cursor_ptr \
5066        -xscrollcommand {.vpane.files.workdir.sx set} \
5067        -yscrollcommand {.vpane.files.workdir.sy set} \
5068        -state disabled
5069scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
5070scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
5071pack .vpane.files.workdir.title -side top -fill x
5072pack .vpane.files.workdir.sx -side bottom -fill x
5073pack .vpane.files.workdir.sy -side right -fill y
5074pack $ui_workdir -side left -fill both -expand 1
5075.vpane.files add .vpane.files.workdir -sticky nsew
5076
5077foreach i [list $ui_index $ui_workdir] {
5078        $i tag conf in_diff -font font_uibold
5079        $i tag conf in_sel \
5080                -background [$i cget -foreground] \
5081                -foreground [$i cget -background]
5082}
5083unset i
5084
5085# -- Diff and Commit Area
5086#
5087frame .vpane.lower -height 300 -width 400
5088frame .vpane.lower.commarea
5089frame .vpane.lower.diff -relief sunken -borderwidth 1
5090pack .vpane.lower.commarea -side top -fill x
5091pack .vpane.lower.diff -side bottom -fill both -expand 1
5092.vpane add .vpane.lower -sticky nsew
5093
5094# -- Commit Area Buttons
5095#
5096frame .vpane.lower.commarea.buttons
5097label .vpane.lower.commarea.buttons.l -text {} \
5098        -anchor w \
5099        -justify left \
5100        -font font_ui
5101pack .vpane.lower.commarea.buttons.l -side top -fill x
5102pack .vpane.lower.commarea.buttons -side left -fill y
5103
5104button .vpane.lower.commarea.buttons.rescan -text {Rescan} \
5105        -command do_rescan \
5106        -font font_ui
5107pack .vpane.lower.commarea.buttons.rescan -side top -fill x
5108lappend disable_on_lock \
5109        {.vpane.lower.commarea.buttons.rescan conf -state}
5110
5111button .vpane.lower.commarea.buttons.incall -text {Add All} \
5112        -command do_add_all \
5113        -font font_ui
5114pack .vpane.lower.commarea.buttons.incall -side top -fill x
5115lappend disable_on_lock \
5116        {.vpane.lower.commarea.buttons.incall conf -state}
5117
5118button .vpane.lower.commarea.buttons.signoff -text {Sign Off} \
5119        -command do_signoff \
5120        -font font_ui
5121pack .vpane.lower.commarea.buttons.signoff -side top -fill x
5122
5123button .vpane.lower.commarea.buttons.commit -text {Commit} \
5124        -command do_commit \
5125        -font font_ui
5126pack .vpane.lower.commarea.buttons.commit -side top -fill x
5127lappend disable_on_lock \
5128        {.vpane.lower.commarea.buttons.commit conf -state}
5129
5130# -- Commit Message Buffer
5131#
5132frame .vpane.lower.commarea.buffer
5133frame .vpane.lower.commarea.buffer.header
5134set ui_comm .vpane.lower.commarea.buffer.t
5135set ui_coml .vpane.lower.commarea.buffer.header.l
5136radiobutton .vpane.lower.commarea.buffer.header.new \
5137        -text {New Commit} \
5138        -command do_select_commit_type \
5139        -variable selected_commit_type \
5140        -value new \
5141        -font font_ui
5142lappend disable_on_lock \
5143        [list .vpane.lower.commarea.buffer.header.new conf -state]
5144radiobutton .vpane.lower.commarea.buffer.header.amend \
5145        -text {Amend Last Commit} \
5146        -command do_select_commit_type \
5147        -variable selected_commit_type \
5148        -value amend \
5149        -font font_ui
5150lappend disable_on_lock \
5151        [list .vpane.lower.commarea.buffer.header.amend conf -state]
5152label $ui_coml \
5153        -anchor w \
5154        -justify left \
5155        -font font_ui
5156proc trace_commit_type {varname args} {
5157        global ui_coml commit_type
5158        switch -glob -- $commit_type {
5159        initial       {set txt {Initial Commit Message:}}
5160        amend         {set txt {Amended Commit Message:}}
5161        amend-initial {set txt {Amended Initial Commit Message:}}
5162        amend-merge   {set txt {Amended Merge Commit Message:}}
5163        merge         {set txt {Merge Commit Message:}}
5164        *             {set txt {Commit Message:}}
5165        }
5166        $ui_coml conf -text $txt
5167}
5168trace add variable commit_type write trace_commit_type
5169pack $ui_coml -side left -fill x
5170pack .vpane.lower.commarea.buffer.header.amend -side right
5171pack .vpane.lower.commarea.buffer.header.new -side right
5172
5173text $ui_comm -background white -borderwidth 1 \
5174        -undo true \
5175        -maxundo 20 \
5176        -autoseparators true \
5177        -relief sunken \
5178        -width 75 -height 9 -wrap none \
5179        -font font_diff \
5180        -yscrollcommand {.vpane.lower.commarea.buffer.sby set}
5181scrollbar .vpane.lower.commarea.buffer.sby \
5182        -command [list $ui_comm yview]
5183pack .vpane.lower.commarea.buffer.header -side top -fill x
5184pack .vpane.lower.commarea.buffer.sby -side right -fill y
5185pack $ui_comm -side left -fill y
5186pack .vpane.lower.commarea.buffer -side left -fill y
5187
5188# -- Commit Message Buffer Context Menu
5189#
5190set ctxm .vpane.lower.commarea.buffer.ctxm
5191menu $ctxm -tearoff 0
5192$ctxm add command \
5193        -label {Cut} \
5194        -font font_ui \
5195        -command {tk_textCut $ui_comm}
5196$ctxm add command \
5197        -label {Copy} \
5198        -font font_ui \
5199        -command {tk_textCopy $ui_comm}
5200$ctxm add command \
5201        -label {Paste} \
5202        -font font_ui \
5203        -command {tk_textPaste $ui_comm}
5204$ctxm add command \
5205        -label {Delete} \
5206        -font font_ui \
5207        -command {$ui_comm delete sel.first sel.last}
5208$ctxm add separator
5209$ctxm add command \
5210        -label {Select All} \
5211        -font font_ui \
5212        -command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
5213$ctxm add command \
5214        -label {Copy All} \
5215        -font font_ui \
5216        -command {
5217                $ui_comm tag add sel 0.0 end
5218                tk_textCopy $ui_comm
5219                $ui_comm tag remove sel 0.0 end
5220        }
5221$ctxm add separator
5222$ctxm add command \
5223        -label {Sign Off} \
5224        -font font_ui \
5225        -command do_signoff
5226bind_button3 $ui_comm "tk_popup $ctxm %X %Y"
5227
5228# -- Diff Header
5229#
5230set current_diff_path {}
5231set current_diff_side {}
5232set diff_actions [list]
5233proc trace_current_diff_path {varname args} {
5234        global current_diff_path diff_actions file_states
5235        if {$current_diff_path eq {}} {
5236                set s {}
5237                set f {}
5238                set p {}
5239                set o disabled
5240        } else {
5241                set p $current_diff_path
5242                set s [mapdesc [lindex $file_states($p) 0] $p]
5243                set f {File:}
5244                set p [escape_path $p]
5245                set o normal
5246        }
5247
5248        .vpane.lower.diff.header.status configure -text $s
5249        .vpane.lower.diff.header.file configure -text $f
5250        .vpane.lower.diff.header.path configure -text $p
5251        foreach w $diff_actions {
5252                uplevel #0 $w $o
5253        }
5254}
5255trace add variable current_diff_path write trace_current_diff_path
5256
5257frame .vpane.lower.diff.header -background orange
5258label .vpane.lower.diff.header.status \
5259        -background orange \
5260        -width $max_status_desc \
5261        -anchor w \
5262        -justify left \
5263        -font font_ui
5264label .vpane.lower.diff.header.file \
5265        -background orange \
5266        -anchor w \
5267        -justify left \
5268        -font font_ui
5269label .vpane.lower.diff.header.path \
5270        -background orange \
5271        -anchor w \
5272        -justify left \
5273        -font font_ui
5274pack .vpane.lower.diff.header.status -side left
5275pack .vpane.lower.diff.header.file -side left
5276pack .vpane.lower.diff.header.path -fill x
5277set ctxm .vpane.lower.diff.header.ctxm
5278menu $ctxm -tearoff 0
5279$ctxm add command \
5280        -label {Copy} \
5281        -font font_ui \
5282        -command {
5283                clipboard clear
5284                clipboard append \
5285                        -format STRING \
5286                        -type STRING \
5287                        -- $current_diff_path
5288        }
5289lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
5290bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"
5291
5292# -- Diff Body
5293#
5294frame .vpane.lower.diff.body
5295set ui_diff .vpane.lower.diff.body.t
5296text $ui_diff -background white -borderwidth 0 \
5297        -width 80 -height 15 -wrap none \
5298        -font font_diff \
5299        -xscrollcommand {.vpane.lower.diff.body.sbx set} \
5300        -yscrollcommand {.vpane.lower.diff.body.sby set} \
5301        -state disabled
5302scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
5303        -command [list $ui_diff xview]
5304scrollbar .vpane.lower.diff.body.sby -orient vertical \
5305        -command [list $ui_diff yview]
5306pack .vpane.lower.diff.body.sbx -side bottom -fill x
5307pack .vpane.lower.diff.body.sby -side right -fill y
5308pack $ui_diff -side left -fill both -expand 1
5309pack .vpane.lower.diff.header -side top -fill x
5310pack .vpane.lower.diff.body -side bottom -fill both -expand 1
5311
5312$ui_diff tag conf d_cr -elide true
5313$ui_diff tag conf d_@ -foreground blue -font font_diffbold
5314$ui_diff tag conf d_+ -foreground {#00a000}
5315$ui_diff tag conf d_- -foreground red
5316
5317$ui_diff tag conf d_++ -foreground {#00a000}
5318$ui_diff tag conf d_-- -foreground red
5319$ui_diff tag conf d_+s \
5320        -foreground {#00a000} \
5321        -background {#e2effa}
5322$ui_diff tag conf d_-s \
5323        -foreground red \
5324        -background {#e2effa}
5325$ui_diff tag conf d_s+ \
5326        -foreground {#00a000} \
5327        -background ivory1
5328$ui_diff tag conf d_s- \
5329        -foreground red \
5330        -background ivory1
5331
5332$ui_diff tag conf d<<<<<<< \
5333        -foreground orange \
5334        -font font_diffbold
5335$ui_diff tag conf d======= \
5336        -foreground orange \
5337        -font font_diffbold
5338$ui_diff tag conf d>>>>>>> \
5339        -foreground orange \
5340        -font font_diffbold
5341
5342$ui_diff tag raise sel
5343
5344# -- Diff Body Context Menu
5345#
5346set ctxm .vpane.lower.diff.body.ctxm
5347menu $ctxm -tearoff 0
5348$ctxm add command \
5349        -label {Refresh} \
5350        -font font_ui \
5351        -command reshow_diff
5352lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
5353$ctxm add command \
5354        -label {Copy} \
5355        -font font_ui \
5356        -command {tk_textCopy $ui_diff}
5357lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
5358$ctxm add command \
5359        -label {Select All} \
5360        -font font_ui \
5361        -command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
5362lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
5363$ctxm add command \
5364        -label {Copy All} \
5365        -font font_ui \
5366        -command {
5367                $ui_diff tag add sel 0.0 end
5368                tk_textCopy $ui_diff
5369                $ui_diff tag remove sel 0.0 end
5370        }
5371lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
5372$ctxm add separator
5373$ctxm add command \
5374        -label {Apply/Reverse Hunk} \
5375        -font font_ui \
5376        -command {apply_hunk $cursorX $cursorY}
5377set ui_diff_applyhunk [$ctxm index last]
5378lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
5379$ctxm add separator
5380$ctxm add command \
5381        -label {Decrease Font Size} \
5382        -font font_ui \
5383        -command {incr_font_size font_diff -1}
5384lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
5385$ctxm add command \
5386        -label {Increase Font Size} \
5387        -font font_ui \
5388        -command {incr_font_size font_diff 1}
5389lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
5390$ctxm add separator
5391$ctxm add command \
5392        -label {Show Less Context} \
5393        -font font_ui \
5394        -command {if {$repo_config(gui.diffcontext) >= 2} {
5395                incr repo_config(gui.diffcontext) -1
5396                reshow_diff
5397        }}
5398lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
5399$ctxm add command \
5400        -label {Show More Context} \
5401        -font font_ui \
5402        -command {
5403                incr repo_config(gui.diffcontext)
5404                reshow_diff
5405        }
5406lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
5407$ctxm add separator
5408$ctxm add command -label {Options...} \
5409        -font font_ui \
5410        -command do_options
5411bind_button3 $ui_diff "
5412        set cursorX %x
5413        set cursorY %y
5414        if {\$ui_index eq \$current_diff_side} {
5415                $ctxm entryconf $ui_diff_applyhunk -label {Unstage Hunk From Commit}
5416        } else {
5417                $ctxm entryconf $ui_diff_applyhunk -label {Stage Hunk For Commit}
5418        }
5419        tk_popup $ctxm %X %Y
5420"
5421unset ui_diff_applyhunk
5422
5423# -- Status Bar
5424#
5425set ui_status_value {Initializing...}
5426label .status -textvariable ui_status_value \
5427        -anchor w \
5428        -justify left \
5429        -borderwidth 1 \
5430        -relief sunken \
5431        -font font_ui
5432pack .status -anchor w -side bottom -fill x
5433
5434# -- Load geometry
5435#
5436catch {
5437set gm $repo_config(gui.geometry)
5438wm geometry . [lindex $gm 0]
5439.vpane sash place 0 \
5440        [lindex [.vpane sash coord 0] 0] \
5441        [lindex $gm 1]
5442.vpane.files sash place 0 \
5443        [lindex $gm 2] \
5444        [lindex [.vpane.files sash coord 0] 1]
5445unset gm
5446}
5447
5448# -- Key Bindings
5449#
5450bind $ui_comm <$M1B-Key-Return> {do_commit;break}
5451bind $ui_comm <$M1B-Key-i> {do_add_all;break}
5452bind $ui_comm <$M1B-Key-I> {do_add_all;break}
5453bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
5454bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
5455bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
5456bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
5457bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
5458bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
5459bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
5460bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
5461
5462bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
5463bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
5464bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
5465bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
5466bind $ui_diff <$M1B-Key-v> {break}
5467bind $ui_diff <$M1B-Key-V> {break}
5468bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
5469bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
5470bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
5471bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
5472bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
5473bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
5474bind $ui_diff <Button-1>   {focus %W}
5475
5476if {!$single_commit} {
5477        bind . <$M1B-Key-n> do_create_branch
5478        bind . <$M1B-Key-N> do_create_branch
5479}
5480
5481bind .   <Destroy> do_quit
5482bind all <Key-F5> do_rescan
5483bind all <$M1B-Key-r> do_rescan
5484bind all <$M1B-Key-R> do_rescan
5485bind .   <$M1B-Key-s> do_signoff
5486bind .   <$M1B-Key-S> do_signoff
5487bind .   <$M1B-Key-i> do_add_all
5488bind .   <$M1B-Key-I> do_add_all
5489bind .   <$M1B-Key-Return> do_commit
5490bind all <$M1B-Key-q> do_quit
5491bind all <$M1B-Key-Q> do_quit
5492bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
5493bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
5494foreach i [list $ui_index $ui_workdir] {
5495        bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
5496        bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
5497        bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
5498}
5499unset i
5500
5501set file_lists($ui_index) [list]
5502set file_lists($ui_workdir) [list]
5503
5504set HEAD {}
5505set PARENT {}
5506set MERGE_HEAD [list]
5507set commit_type {}
5508set empty_tree {}
5509set current_branch {}
5510set current_diff_path {}
5511set selected_commit_type new
5512
5513wm title . "[appname] ([file normalize [file dirname [gitdir]]])"
5514focus -force $ui_comm
5515
5516# -- Warn the user about environmental problems.  Cygwin's Tcl
5517#    does *not* pass its env array onto any processes it spawns.
5518#    This means that git processes get none of our environment.
5519#
5520if {[is_Cygwin]} {
5521        set ignored_env 0
5522        set suggest_user {}
5523        set msg "Possible environment issues exist.
5524
5525The following environment variables are probably
5526going to be ignored by any Git subprocess run
5527by [appname]:
5528
5529"
5530        foreach name [array names env] {
5531                switch -regexp -- $name {
5532                {^GIT_INDEX_FILE$} -
5533                {^GIT_OBJECT_DIRECTORY$} -
5534                {^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
5535                {^GIT_DIFF_OPTS$} -
5536                {^GIT_EXTERNAL_DIFF$} -
5537                {^GIT_PAGER$} -
5538                {^GIT_TRACE$} -
5539                {^GIT_CONFIG$} -
5540                {^GIT_CONFIG_LOCAL$} -
5541                {^GIT_(AUTHOR|COMMITTER)_DATE$} {
5542                        append msg " - $name\n"
5543                        incr ignored_env
5544                }
5545                {^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
5546                        append msg " - $name\n"
5547                        incr ignored_env
5548                        set suggest_user $name
5549                }
5550                }
5551        }
5552        if {$ignored_env > 0} {
5553                append msg "
5554This is due to a known issue with the
5555Tcl binary distributed by Cygwin."
5556
5557                if {$suggest_user ne {}} {
5558                        append msg "
5559
5560A good replacement for $suggest_user
5561is placing values for the user.name and
5562user.email settings into your personal
5563~/.gitconfig file.
5564"
5565                }
5566                warn_popup $msg
5567        }
5568        unset ignored_env msg suggest_user name
5569}
5570
5571# -- Only initialize complex UI if we are going to stay running.
5572#
5573if {!$single_commit} {
5574        load_all_remotes
5575        load_all_heads
5576
5577        populate_branch_menu
5578        populate_fetch_menu
5579        populate_push_menu
5580}
5581
5582# -- Only suggest a gc run if we are going to stay running.
5583#
5584if {!$single_commit} {
5585        set object_limit 2000
5586        if {[is_Windows]} {set object_limit 200}
5587        regexp {^([0-9]+) objects,} [exec git count-objects] _junk objects_current
5588        if {$objects_current >= $object_limit} {
5589                if {[ask_popup \
5590                        "This repository currently has $objects_current loose objects.
5591
5592To maintain optimal performance it is strongly
5593recommended that you compress the database
5594when more than $object_limit loose objects exist.
5595
5596Compress the database now?"] eq yes} {
5597                        do_gc
5598                }
5599        }
5600        unset object_limit _junk objects_current
5601}
5602
5603lock_index begin-read
5604after 1 do_rescan