git-gui.shon commit git-gui: Don't allow users to commit a bad octopus merge. (dff7e88)
   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 _reponame {}
  30
  31proc appname {} {
  32        global _appname
  33        return $_appname
  34}
  35
  36proc gitdir {args} {
  37        global _gitdir
  38        if {$args eq {}} {
  39                return $_gitdir
  40        }
  41        return [eval [concat [list file join $_gitdir] $args]]
  42}
  43
  44proc reponame {} {
  45        global _reponame
  46        return $_reponame
  47}
  48
  49######################################################################
  50##
  51## config
  52
  53proc is_many_config {name} {
  54        switch -glob -- $name {
  55        remote.*.fetch -
  56        remote.*.push
  57                {return 1}
  58        *
  59                {return 0}
  60        }
  61}
  62
  63proc load_config {include_global} {
  64        global repo_config global_config default_config
  65
  66        array unset global_config
  67        if {$include_global} {
  68                catch {
  69                        set fd_rc [open "| git repo-config --global --list" r]
  70                        while {[gets $fd_rc line] >= 0} {
  71                                if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
  72                                        if {[is_many_config $name]} {
  73                                                lappend global_config($name) $value
  74                                        } else {
  75                                                set global_config($name) $value
  76                                        }
  77                                }
  78                        }
  79                        close $fd_rc
  80                }
  81        }
  82
  83        array unset repo_config
  84        catch {
  85                set fd_rc [open "| git repo-config --list" r]
  86                while {[gets $fd_rc line] >= 0} {
  87                        if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
  88                                if {[is_many_config $name]} {
  89                                        lappend repo_config($name) $value
  90                                } else {
  91                                        set repo_config($name) $value
  92                                }
  93                        }
  94                }
  95                close $fd_rc
  96        }
  97
  98        foreach name [array names default_config] {
  99                if {[catch {set v $global_config($name)}]} {
 100                        set global_config($name) $default_config($name)
 101                }
 102                if {[catch {set v $repo_config($name)}]} {
 103                        set repo_config($name) $default_config($name)
 104                }
 105        }
 106}
 107
 108proc save_config {} {
 109        global default_config font_descs
 110        global repo_config global_config
 111        global repo_config_new global_config_new
 112
 113        foreach option $font_descs {
 114                set name [lindex $option 0]
 115                set font [lindex $option 1]
 116                font configure $font \
 117                        -family $global_config_new(gui.$font^^family) \
 118                        -size $global_config_new(gui.$font^^size)
 119                font configure ${font}bold \
 120                        -family $global_config_new(gui.$font^^family) \
 121                        -size $global_config_new(gui.$font^^size)
 122                set global_config_new(gui.$name) [font configure $font]
 123                unset global_config_new(gui.$font^^family)
 124                unset global_config_new(gui.$font^^size)
 125        }
 126
 127        foreach name [array names default_config] {
 128                set value $global_config_new($name)
 129                if {$value ne $global_config($name)} {
 130                        if {$value eq $default_config($name)} {
 131                                catch {exec git repo-config --global --unset $name}
 132                        } else {
 133                                regsub -all "\[{}\]" $value {"} value
 134                                exec git repo-config --global $name $value
 135                        }
 136                        set global_config($name) $value
 137                        if {$value eq $repo_config($name)} {
 138                                catch {exec git repo-config --unset $name}
 139                                set repo_config($name) $value
 140                        }
 141                }
 142        }
 143
 144        foreach name [array names default_config] {
 145                set value $repo_config_new($name)
 146                if {$value ne $repo_config($name)} {
 147                        if {$value eq $global_config($name)} {
 148                                catch {exec git repo-config --unset $name}
 149                        } else {
 150                                regsub -all "\[{}\]" $value {"} value
 151                                exec git repo-config $name $value
 152                        }
 153                        set repo_config($name) $value
 154                }
 155        }
 156}
 157
 158proc error_popup {msg} {
 159        set title [appname]
 160        if {[reponame] ne {}} {
 161                append title " ([reponame])"
 162        }
 163        set cmd [list tk_messageBox \
 164                -icon error \
 165                -type ok \
 166                -title "$title: error" \
 167                -message $msg]
 168        if {[winfo ismapped .]} {
 169                lappend cmd -parent .
 170        }
 171        eval $cmd
 172}
 173
 174proc warn_popup {msg} {
 175        set title [appname]
 176        if {[reponame] ne {}} {
 177                append title " ([reponame])"
 178        }
 179        set cmd [list tk_messageBox \
 180                -icon warning \
 181                -type ok \
 182                -title "$title: warning" \
 183                -message $msg]
 184        if {[winfo ismapped .]} {
 185                lappend cmd -parent .
 186        }
 187        eval $cmd
 188}
 189
 190proc info_popup {msg {parent .}} {
 191        set title [appname]
 192        if {[reponame] ne {}} {
 193                append title " ([reponame])"
 194        }
 195        tk_messageBox \
 196                -parent $parent \
 197                -icon info \
 198                -type ok \
 199                -title $title \
 200                -message $msg
 201}
 202
 203proc ask_popup {msg} {
 204        set title [appname]
 205        if {[reponame] ne {}} {
 206                append title " ([reponame])"
 207        }
 208        return [tk_messageBox \
 209                -parent . \
 210                -icon question \
 211                -type yesno \
 212                -title $title \
 213                -message $msg]
 214}
 215
 216######################################################################
 217##
 218## repository setup
 219
 220if {   [catch {set _gitdir $env(GIT_DIR)}]
 221        && [catch {set _gitdir [exec git rev-parse --git-dir]} err]} {
 222        catch {wm withdraw .}
 223        error_popup "Cannot find the git directory:\n\n$err"
 224        exit 1
 225}
 226if {![file isdirectory $_gitdir]} {
 227        catch {wm withdraw .}
 228        error_popup "Git directory not found:\n\n$_gitdir"
 229        exit 1
 230}
 231if {[lindex [file split $_gitdir] end] ne {.git}} {
 232        catch {wm withdraw .}
 233        error_popup "Cannot use funny .git directory:\n\n$gitdir"
 234        exit 1
 235}
 236if {[catch {cd [file dirname $_gitdir]} err]} {
 237        catch {wm withdraw .}
 238        error_popup "No working directory [file dirname $_gitdir]:\n\n$err"
 239        exit 1
 240}
 241set _reponame [lindex [file split \
 242        [file normalize [file dirname $_gitdir]]] \
 243        end]
 244
 245set single_commit 0
 246if {[appname] eq {git-citool}} {
 247        set single_commit 1
 248}
 249
 250######################################################################
 251##
 252## task management
 253
 254set rescan_active 0
 255set diff_active 0
 256set last_clicked {}
 257
 258set disable_on_lock [list]
 259set index_lock_type none
 260
 261proc lock_index {type} {
 262        global index_lock_type disable_on_lock
 263
 264        if {$index_lock_type eq {none}} {
 265                set index_lock_type $type
 266                foreach w $disable_on_lock {
 267                        uplevel #0 $w disabled
 268                }
 269                return 1
 270        } elseif {$index_lock_type eq "begin-$type"} {
 271                set index_lock_type $type
 272                return 1
 273        }
 274        return 0
 275}
 276
 277proc unlock_index {} {
 278        global index_lock_type disable_on_lock
 279
 280        set index_lock_type none
 281        foreach w $disable_on_lock {
 282                uplevel #0 $w normal
 283        }
 284}
 285
 286######################################################################
 287##
 288## status
 289
 290proc repository_state {ctvar hdvar mhvar} {
 291        global current_branch
 292        upvar $ctvar ct $hdvar hd $mhvar mh
 293
 294        set mh [list]
 295
 296        if {[catch {set current_branch [exec git symbolic-ref HEAD]}]} {
 297                set current_branch {}
 298        } else {
 299                regsub ^refs/((heads|tags|remotes)/)? \
 300                        $current_branch \
 301                        {} \
 302                        current_branch
 303        }
 304
 305        if {[catch {set hd [exec git rev-parse --verify HEAD]}]} {
 306                set hd {}
 307                set ct initial
 308                return
 309        }
 310
 311        set merge_head [gitdir MERGE_HEAD]
 312        if {[file exists $merge_head]} {
 313                set ct merge
 314                set fd_mh [open $merge_head r]
 315                while {[gets $fd_mh line] >= 0} {
 316                        lappend mh $line
 317                }
 318                close $fd_mh
 319                return
 320        }
 321
 322        set ct normal
 323}
 324
 325proc PARENT {} {
 326        global PARENT empty_tree
 327
 328        set p [lindex $PARENT 0]
 329        if {$p ne {}} {
 330                return $p
 331        }
 332        if {$empty_tree eq {}} {
 333                set empty_tree [exec git mktree << {}]
 334        }
 335        return $empty_tree
 336}
 337
 338proc rescan {after {honor_trustmtime 1}} {
 339        global HEAD PARENT MERGE_HEAD commit_type
 340        global ui_index ui_workdir ui_status_value ui_comm
 341        global rescan_active file_states
 342        global repo_config
 343
 344        if {$rescan_active > 0 || ![lock_index read]} return
 345
 346        repository_state newType newHEAD newMERGE_HEAD
 347        if {[string match amend* $commit_type]
 348                && $newType eq {normal}
 349                && $newHEAD eq $HEAD} {
 350        } else {
 351                set HEAD $newHEAD
 352                set PARENT $newHEAD
 353                set MERGE_HEAD $newMERGE_HEAD
 354                set commit_type $newType
 355        }
 356
 357        array unset file_states
 358
 359        if {![$ui_comm edit modified]
 360                || [string trim [$ui_comm get 0.0 end]] eq {}} {
 361                if {[load_message GITGUI_MSG]} {
 362                } elseif {[load_message MERGE_MSG]} {
 363                } elseif {[load_message SQUASH_MSG]} {
 364                }
 365                $ui_comm edit reset
 366                $ui_comm edit modified false
 367        }
 368
 369        if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
 370                rescan_stage2 {} $after
 371        } else {
 372                set rescan_active 1
 373                set ui_status_value {Refreshing file status...}
 374                set cmd [list git update-index]
 375                lappend cmd -q
 376                lappend cmd --unmerged
 377                lappend cmd --ignore-missing
 378                lappend cmd --refresh
 379                set fd_rf [open "| $cmd" r]
 380                fconfigure $fd_rf -blocking 0 -translation binary
 381                fileevent $fd_rf readable \
 382                        [list rescan_stage2 $fd_rf $after]
 383        }
 384}
 385
 386proc rescan_stage2 {fd after} {
 387        global ui_status_value
 388        global rescan_active buf_rdi buf_rdf buf_rlo
 389
 390        if {$fd ne {}} {
 391                read $fd
 392                if {![eof $fd]} return
 393                close $fd
 394        }
 395
 396        set ls_others [list | git ls-files --others -z \
 397                --exclude-per-directory=.gitignore]
 398        set info_exclude [gitdir info exclude]
 399        if {[file readable $info_exclude]} {
 400                lappend ls_others "--exclude-from=$info_exclude"
 401        }
 402
 403        set buf_rdi {}
 404        set buf_rdf {}
 405        set buf_rlo {}
 406
 407        set rescan_active 3
 408        set ui_status_value {Scanning for modified files ...}
 409        set fd_di [open "| git diff-index --cached -z [PARENT]" r]
 410        set fd_df [open "| git diff-files -z" r]
 411        set fd_lo [open $ls_others r]
 412
 413        fconfigure $fd_di -blocking 0 -translation binary -encoding binary
 414        fconfigure $fd_df -blocking 0 -translation binary -encoding binary
 415        fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
 416        fileevent $fd_di readable [list read_diff_index $fd_di $after]
 417        fileevent $fd_df readable [list read_diff_files $fd_df $after]
 418        fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
 419}
 420
 421proc load_message {file} {
 422        global ui_comm
 423
 424        set f [gitdir $file]
 425        if {[file isfile $f]} {
 426                if {[catch {set fd [open $f r]}]} {
 427                        return 0
 428                }
 429                set content [string trim [read $fd]]
 430                close $fd
 431                regsub -all -line {[ \r\t]+$} $content {} content
 432                $ui_comm delete 0.0 end
 433                $ui_comm insert end $content
 434                return 1
 435        }
 436        return 0
 437}
 438
 439proc read_diff_index {fd after} {
 440        global buf_rdi
 441
 442        append buf_rdi [read $fd]
 443        set c 0
 444        set n [string length $buf_rdi]
 445        while {$c < $n} {
 446                set z1 [string first "\0" $buf_rdi $c]
 447                if {$z1 == -1} break
 448                incr z1
 449                set z2 [string first "\0" $buf_rdi $z1]
 450                if {$z2 == -1} break
 451
 452                incr c
 453                set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
 454                set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
 455                merge_state \
 456                        [encoding convertfrom $p] \
 457                        [lindex $i 4]? \
 458                        [list [lindex $i 0] [lindex $i 2]] \
 459                        [list]
 460                set c $z2
 461                incr c
 462        }
 463        if {$c < $n} {
 464                set buf_rdi [string range $buf_rdi $c end]
 465        } else {
 466                set buf_rdi {}
 467        }
 468
 469        rescan_done $fd buf_rdi $after
 470}
 471
 472proc read_diff_files {fd after} {
 473        global buf_rdf
 474
 475        append buf_rdf [read $fd]
 476        set c 0
 477        set n [string length $buf_rdf]
 478        while {$c < $n} {
 479                set z1 [string first "\0" $buf_rdf $c]
 480                if {$z1 == -1} break
 481                incr z1
 482                set z2 [string first "\0" $buf_rdf $z1]
 483                if {$z2 == -1} break
 484
 485                incr c
 486                set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
 487                set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
 488                merge_state \
 489                        [encoding convertfrom $p] \
 490                        ?[lindex $i 4] \
 491                        [list] \
 492                        [list [lindex $i 0] [lindex $i 2]]
 493                set c $z2
 494                incr c
 495        }
 496        if {$c < $n} {
 497                set buf_rdf [string range $buf_rdf $c end]
 498        } else {
 499                set buf_rdf {}
 500        }
 501
 502        rescan_done $fd buf_rdf $after
 503}
 504
 505proc read_ls_others {fd after} {
 506        global buf_rlo
 507
 508        append buf_rlo [read $fd]
 509        set pck [split $buf_rlo "\0"]
 510        set buf_rlo [lindex $pck end]
 511        foreach p [lrange $pck 0 end-1] {
 512                merge_state [encoding convertfrom $p] ?O
 513        }
 514        rescan_done $fd buf_rlo $after
 515}
 516
 517proc rescan_done {fd buf after} {
 518        global rescan_active
 519        global file_states repo_config
 520        upvar $buf to_clear
 521
 522        if {![eof $fd]} return
 523        set to_clear {}
 524        close $fd
 525        if {[incr rescan_active -1] > 0} return
 526
 527        prune_selection
 528        unlock_index
 529        display_all_files
 530        reshow_diff
 531        uplevel #0 $after
 532}
 533
 534proc prune_selection {} {
 535        global file_states selected_paths
 536
 537        foreach path [array names selected_paths] {
 538                if {[catch {set still_here $file_states($path)}]} {
 539                        unset selected_paths($path)
 540                }
 541        }
 542}
 543
 544######################################################################
 545##
 546## diff
 547
 548proc clear_diff {} {
 549        global ui_diff current_diff_path current_diff_header
 550        global ui_index ui_workdir
 551
 552        $ui_diff conf -state normal
 553        $ui_diff delete 0.0 end
 554        $ui_diff conf -state disabled
 555
 556        set current_diff_path {}
 557        set current_diff_header {}
 558
 559        $ui_index tag remove in_diff 0.0 end
 560        $ui_workdir tag remove in_diff 0.0 end
 561}
 562
 563proc reshow_diff {} {
 564        global ui_status_value file_states file_lists
 565        global current_diff_path current_diff_side
 566
 567        set p $current_diff_path
 568        if {$p eq {}
 569                || $current_diff_side eq {}
 570                || [catch {set s $file_states($p)}]
 571                || [lsearch -sorted -exact $file_lists($current_diff_side) $p] == -1} {
 572                clear_diff
 573        } else {
 574                show_diff $p $current_diff_side
 575        }
 576}
 577
 578proc handle_empty_diff {} {
 579        global current_diff_path file_states file_lists
 580
 581        set path $current_diff_path
 582        set s $file_states($path)
 583        if {[lindex $s 0] ne {_M}} return
 584
 585        info_popup "No differences detected.
 586
 587[short_path $path] has no changes.
 588
 589The modification date of this file was updated
 590by another application, but the content within
 591the file was not changed.
 592
 593A rescan will be automatically started to find
 594other files which may have the same state."
 595
 596        clear_diff
 597        display_file $path __
 598        rescan {set ui_status_value {Ready.}} 0
 599}
 600
 601proc show_diff {path w {lno {}}} {
 602        global file_states file_lists
 603        global is_3way_diff diff_active repo_config
 604        global ui_diff ui_status_value ui_index ui_workdir
 605        global current_diff_path current_diff_side current_diff_header
 606
 607        if {$diff_active || ![lock_index read]} return
 608
 609        clear_diff
 610        if {$lno == {}} {
 611                set lno [lsearch -sorted -exact $file_lists($w) $path]
 612                if {$lno >= 0} {
 613                        incr lno
 614                }
 615        }
 616        if {$lno >= 1} {
 617                $w tag add in_diff $lno.0 [expr {$lno + 1}].0
 618        }
 619
 620        set s $file_states($path)
 621        set m [lindex $s 0]
 622        set is_3way_diff 0
 623        set diff_active 1
 624        set current_diff_path $path
 625        set current_diff_side $w
 626        set current_diff_header {}
 627        set ui_status_value "Loading diff of [escape_path $path]..."
 628
 629        # - Git won't give us the diff, there's nothing to compare to!
 630        #
 631        if {$m eq {_O}} {
 632                set max_sz [expr {128 * 1024}]
 633                if {[catch {
 634                                set fd [open $path r]
 635                                set content [read $fd $max_sz]
 636                                close $fd
 637                                set sz [file size $path]
 638                        } err ]} {
 639                        set diff_active 0
 640                        unlock_index
 641                        set ui_status_value "Unable to display [escape_path $path]"
 642                        error_popup "Error loading file:\n\n$err"
 643                        return
 644                }
 645                $ui_diff conf -state normal
 646                if {![catch {set type [exec file $path]}]} {
 647                        set n [string length $path]
 648                        if {[string equal -length $n $path $type]} {
 649                                set type [string range $type $n end]
 650                                regsub {^:?\s*} $type {} type
 651                        }
 652                        $ui_diff insert end "* $type\n" d_@
 653                }
 654                if {[string first "\0" $content] != -1} {
 655                        $ui_diff insert end \
 656                                "* Binary file (not showing content)." \
 657                                d_@
 658                } else {
 659                        if {$sz > $max_sz} {
 660                                $ui_diff insert end \
 661"* Untracked file is $sz bytes.
 662* Showing only first $max_sz bytes.
 663" d_@
 664                        }
 665                        $ui_diff insert end $content
 666                        if {$sz > $max_sz} {
 667                                $ui_diff insert end "
 668* Untracked file clipped here by [appname].
 669* To see the entire file, use an external editor.
 670" d_@
 671                        }
 672                }
 673                $ui_diff conf -state disabled
 674                set diff_active 0
 675                unlock_index
 676                set ui_status_value {Ready.}
 677                return
 678        }
 679
 680        set cmd [list | git]
 681        if {$w eq $ui_index} {
 682                lappend cmd diff-index
 683                lappend cmd --cached
 684        } elseif {$w eq $ui_workdir} {
 685                if {[string index $m 0] eq {U}} {
 686                        lappend cmd diff
 687                } else {
 688                        lappend cmd diff-files
 689                }
 690        }
 691
 692        lappend cmd -p
 693        lappend cmd --no-color
 694        if {$repo_config(gui.diffcontext) > 0} {
 695                lappend cmd "-U$repo_config(gui.diffcontext)"
 696        }
 697        if {$w eq $ui_index} {
 698                lappend cmd [PARENT]
 699        }
 700        lappend cmd --
 701        lappend cmd $path
 702
 703        if {[catch {set fd [open $cmd r]} err]} {
 704                set diff_active 0
 705                unlock_index
 706                set ui_status_value "Unable to display [escape_path $path]"
 707                error_popup "Error loading diff:\n\n$err"
 708                return
 709        }
 710
 711        fconfigure $fd \
 712                -blocking 0 \
 713                -encoding binary \
 714                -translation binary
 715        fileevent $fd readable [list read_diff $fd]
 716}
 717
 718proc read_diff {fd} {
 719        global ui_diff ui_status_value diff_active
 720        global is_3way_diff current_diff_header
 721
 722        $ui_diff conf -state normal
 723        while {[gets $fd line] >= 0} {
 724                # -- Cleanup uninteresting diff header lines.
 725                #
 726                if {   [string match {diff --git *}      $line]
 727                        || [string match {diff --cc *}       $line]
 728                        || [string match {diff --combined *} $line]
 729                        || [string match {--- *}             $line]
 730                        || [string match {+++ *}             $line]} {
 731                        append current_diff_header $line "\n"
 732                        continue
 733                }
 734                if {[string match {index *} $line]} continue
 735                if {$line eq {deleted file mode 120000}} {
 736                        set line "deleted symlink"
 737                }
 738
 739                # -- Automatically detect if this is a 3 way diff.
 740                #
 741                if {[string match {@@@ *} $line]} {set is_3way_diff 1}
 742
 743                if {[string match {mode *} $line]
 744                        || [string match {new file *} $line]
 745                        || [string match {deleted file *} $line]
 746                        || [string match {Binary files * and * differ} $line]
 747                        || $line eq {\ No newline at end of file}
 748                        || [regexp {^\* Unmerged path } $line]} {
 749                        set tags {}
 750                } elseif {$is_3way_diff} {
 751                        set op [string range $line 0 1]
 752                        switch -- $op {
 753                        {  } {set tags {}}
 754                        {@@} {set tags d_@}
 755                        { +} {set tags d_s+}
 756                        { -} {set tags d_s-}
 757                        {+ } {set tags d_+s}
 758                        {- } {set tags d_-s}
 759                        {--} {set tags d_--}
 760                        {++} {
 761                                if {[regexp {^\+\+([<>]{7} |={7})} $line _g op]} {
 762                                        set line [string replace $line 0 1 {  }]
 763                                        set tags d$op
 764                                } else {
 765                                        set tags d_++
 766                                }
 767                        }
 768                        default {
 769                                puts "error: Unhandled 3 way diff marker: {$op}"
 770                                set tags {}
 771                        }
 772                        }
 773                } else {
 774                        set op [string index $line 0]
 775                        switch -- $op {
 776                        { } {set tags {}}
 777                        {@} {set tags d_@}
 778                        {-} {set tags d_-}
 779                        {+} {
 780                                if {[regexp {^\+([<>]{7} |={7})} $line _g op]} {
 781                                        set line [string replace $line 0 0 { }]
 782                                        set tags d$op
 783                                } else {
 784                                        set tags d_+
 785                                }
 786                        }
 787                        default {
 788                                puts "error: Unhandled 2 way diff marker: {$op}"
 789                                set tags {}
 790                        }
 791                        }
 792                }
 793                $ui_diff insert end $line $tags
 794                if {[string index $line end] eq "\r"} {
 795                        $ui_diff tag add d_cr {end - 2c}
 796                }
 797                $ui_diff insert end "\n" $tags
 798        }
 799        $ui_diff conf -state disabled
 800
 801        if {[eof $fd]} {
 802                close $fd
 803                set diff_active 0
 804                unlock_index
 805                set ui_status_value {Ready.}
 806
 807                if {[$ui_diff index end] eq {2.0}} {
 808                        handle_empty_diff
 809                }
 810        }
 811}
 812
 813proc apply_hunk {x y} {
 814        global current_diff_path current_diff_header current_diff_side
 815        global ui_diff ui_index file_states
 816
 817        if {$current_diff_path eq {} || $current_diff_header eq {}} return
 818        if {![lock_index apply_hunk]} return
 819
 820        set apply_cmd {git apply --cached --whitespace=nowarn}
 821        set mi [lindex $file_states($current_diff_path) 0]
 822        if {$current_diff_side eq $ui_index} {
 823                set mode unstage
 824                lappend apply_cmd --reverse
 825                if {[string index $mi 0] ne {M}} {
 826                        unlock_index
 827                        return
 828                }
 829        } else {
 830                set mode stage
 831                if {[string index $mi 1] ne {M}} {
 832                        unlock_index
 833                        return
 834                }
 835        }
 836
 837        set s_lno [lindex [split [$ui_diff index @$x,$y] .] 0]
 838        set s_lno [$ui_diff search -backwards -regexp ^@@ $s_lno.0 0.0]
 839        if {$s_lno eq {}} {
 840                unlock_index
 841                return
 842        }
 843
 844        set e_lno [$ui_diff search -forwards -regexp ^@@ "$s_lno + 1 lines" end]
 845        if {$e_lno eq {}} {
 846                set e_lno end
 847        }
 848
 849        if {[catch {
 850                set p [open "| $apply_cmd" w]
 851                fconfigure $p -translation binary -encoding binary
 852                puts -nonewline $p $current_diff_header
 853                puts -nonewline $p [$ui_diff get $s_lno $e_lno]
 854                close $p} err]} {
 855                error_popup "Failed to $mode selected hunk.\n\n$err"
 856                unlock_index
 857                return
 858        }
 859
 860        $ui_diff conf -state normal
 861        $ui_diff delete $s_lno $e_lno
 862        $ui_diff conf -state disabled
 863
 864        if {[$ui_diff get 1.0 end] eq "\n"} {
 865                set o _
 866        } else {
 867                set o ?
 868        }
 869
 870        if {$current_diff_side eq $ui_index} {
 871                set mi ${o}M
 872        } elseif {[string index $mi 0] eq {_}} {
 873                set mi M$o
 874        } else {
 875                set mi ?$o
 876        }
 877        unlock_index
 878        display_file $current_diff_path $mi
 879        if {$o eq {_}} {
 880                clear_diff
 881        }
 882}
 883
 884######################################################################
 885##
 886## commit
 887
 888proc load_last_commit {} {
 889        global HEAD PARENT MERGE_HEAD commit_type ui_comm
 890        global repo_config
 891
 892        if {[llength $PARENT] == 0} {
 893                error_popup {There is nothing to amend.
 894
 895You are about to create the initial commit.
 896There is no commit before this to amend.
 897}
 898                return
 899        }
 900
 901        repository_state curType curHEAD curMERGE_HEAD
 902        if {$curType eq {merge}} {
 903                error_popup {Cannot amend while merging.
 904
 905You are currently in the middle of a merge that
 906has not been fully completed.  You cannot amend
 907the prior commit unless you first abort the
 908current merge activity.
 909}
 910                return
 911        }
 912
 913        set msg {}
 914        set parents [list]
 915        if {[catch {
 916                        set fd [open "| git cat-file commit $curHEAD" r]
 917                        fconfigure $fd -encoding binary -translation lf
 918                        if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
 919                                set enc utf-8
 920                        }
 921                        while {[gets $fd line] > 0} {
 922                                if {[string match {parent *} $line]} {
 923                                        lappend parents [string range $line 7 end]
 924                                } elseif {[string match {encoding *} $line]} {
 925                                        set enc [string tolower [string range $line 9 end]]
 926                                }
 927                        }
 928                        fconfigure $fd -encoding $enc
 929                        set msg [string trim [read $fd]]
 930                        close $fd
 931                } err]} {
 932                error_popup "Error loading commit data for amend:\n\n$err"
 933                return
 934        }
 935
 936        set HEAD $curHEAD
 937        set PARENT $parents
 938        set MERGE_HEAD [list]
 939        switch -- [llength $parents] {
 940        0       {set commit_type amend-initial}
 941        1       {set commit_type amend}
 942        default {set commit_type amend-merge}
 943        }
 944
 945        $ui_comm delete 0.0 end
 946        $ui_comm insert end $msg
 947        $ui_comm edit reset
 948        $ui_comm edit modified false
 949        rescan {set ui_status_value {Ready.}}
 950}
 951
 952proc create_new_commit {} {
 953        global commit_type ui_comm
 954
 955        set commit_type normal
 956        $ui_comm delete 0.0 end
 957        $ui_comm edit reset
 958        $ui_comm edit modified false
 959        rescan {set ui_status_value {Ready.}}
 960}
 961
 962set GIT_COMMITTER_IDENT {}
 963
 964proc committer_ident {} {
 965        global GIT_COMMITTER_IDENT
 966
 967        if {$GIT_COMMITTER_IDENT eq {}} {
 968                if {[catch {set me [exec git var GIT_COMMITTER_IDENT]} err]} {
 969                        error_popup "Unable to obtain your identity:\n\n$err"
 970                        return {}
 971                }
 972                if {![regexp {^(.*) [0-9]+ [-+0-9]+$} \
 973                        $me me GIT_COMMITTER_IDENT]} {
 974                        error_popup "Invalid GIT_COMMITTER_IDENT:\n\n$me"
 975                        return {}
 976                }
 977        }
 978
 979        return $GIT_COMMITTER_IDENT
 980}
 981
 982proc commit_tree {} {
 983        global HEAD commit_type file_states ui_comm repo_config
 984        global ui_status_value pch_error
 985
 986        if {[committer_ident] eq {}} return
 987        if {![lock_index update]} return
 988
 989        # -- Our in memory state should match the repository.
 990        #
 991        repository_state curType curHEAD curMERGE_HEAD
 992        if {[string match amend* $commit_type]
 993                && $curType eq {normal}
 994                && $curHEAD eq $HEAD} {
 995        } elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
 996                info_popup {Last scanned state does not match repository state.
 997
 998Another Git program has modified this repository
 999since the last scan.  A rescan must be performed
1000before another commit can be created.
1001
1002The rescan will be automatically started now.
1003}
1004                unlock_index
1005                rescan {set ui_status_value {Ready.}}
1006                return
1007        }
1008
1009        # -- At least one file should differ in the index.
1010        #
1011        set files_ready 0
1012        foreach path [array names file_states] {
1013                switch -glob -- [lindex $file_states($path) 0] {
1014                _? {continue}
1015                A? -
1016                D? -
1017                M? {set files_ready 1}
1018                U? {
1019                        error_popup "Unmerged files cannot be committed.
1020
1021File [short_path $path] has merge conflicts.
1022You must resolve them and add the file before committing.
1023"
1024                        unlock_index
1025                        return
1026                }
1027                default {
1028                        error_popup "Unknown file state [lindex $s 0] detected.
1029
1030File [short_path $path] cannot be committed by this program.
1031"
1032                }
1033                }
1034        }
1035        if {!$files_ready} {
1036                info_popup {No changes to commit.
1037
1038You must add at least 1 file before you can commit.
1039}
1040                unlock_index
1041                return
1042        }
1043
1044        # -- A message is required.
1045        #
1046        set msg [string trim [$ui_comm get 1.0 end]]
1047        regsub -all -line {[ \t\r]+$} $msg {} msg
1048        if {$msg eq {}} {
1049                error_popup {Please supply a commit message.
1050
1051A good commit message has the following format:
1052
1053- First line: Describe in one sentance what you did.
1054- Second line: Blank
1055- Remaining lines: Describe why this change is good.
1056}
1057                unlock_index
1058                return
1059        }
1060
1061        # -- Run the pre-commit hook.
1062        #
1063        set pchook [gitdir hooks pre-commit]
1064
1065        # On Cygwin [file executable] might lie so we need to ask
1066        # the shell if the hook is executable.  Yes that's annoying.
1067        #
1068        if {[is_Windows] && [file isfile $pchook]} {
1069                set pchook [list sh -c [concat \
1070                        "if test -x \"$pchook\";" \
1071                        "then exec \"$pchook\" 2>&1;" \
1072                        "fi"]]
1073        } elseif {[file executable $pchook]} {
1074                set pchook [list $pchook |& cat]
1075        } else {
1076                commit_writetree $curHEAD $msg
1077                return
1078        }
1079
1080        set ui_status_value {Calling pre-commit hook...}
1081        set pch_error {}
1082        set fd_ph [open "| $pchook" r]
1083        fconfigure $fd_ph -blocking 0 -translation binary
1084        fileevent $fd_ph readable \
1085                [list commit_prehook_wait $fd_ph $curHEAD $msg]
1086}
1087
1088proc commit_prehook_wait {fd_ph curHEAD msg} {
1089        global pch_error ui_status_value
1090
1091        append pch_error [read $fd_ph]
1092        fconfigure $fd_ph -blocking 1
1093        if {[eof $fd_ph]} {
1094                if {[catch {close $fd_ph}]} {
1095                        set ui_status_value {Commit declined by pre-commit hook.}
1096                        hook_failed_popup pre-commit $pch_error
1097                        unlock_index
1098                } else {
1099                        commit_writetree $curHEAD $msg
1100                }
1101                set pch_error {}
1102                return
1103        }
1104        fconfigure $fd_ph -blocking 0
1105}
1106
1107proc commit_writetree {curHEAD msg} {
1108        global ui_status_value
1109
1110        set ui_status_value {Committing changes...}
1111        set fd_wt [open "| git write-tree" r]
1112        fileevent $fd_wt readable \
1113                [list commit_committree $fd_wt $curHEAD $msg]
1114}
1115
1116proc commit_committree {fd_wt curHEAD msg} {
1117        global HEAD PARENT MERGE_HEAD commit_type
1118        global single_commit all_heads current_branch
1119        global ui_status_value ui_comm selected_commit_type
1120        global file_states selected_paths rescan_active
1121        global repo_config
1122
1123        gets $fd_wt tree_id
1124        if {$tree_id eq {} || [catch {close $fd_wt} err]} {
1125                error_popup "write-tree failed:\n\n$err"
1126                set ui_status_value {Commit failed.}
1127                unlock_index
1128                return
1129        }
1130
1131        # -- Build the message.
1132        #
1133        set msg_p [gitdir COMMIT_EDITMSG]
1134        set msg_wt [open $msg_p w]
1135        if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
1136                set enc utf-8
1137        }
1138        fconfigure $msg_wt -encoding $enc -translation binary
1139        puts -nonewline $msg_wt $msg
1140        close $msg_wt
1141
1142        # -- Create the commit.
1143        #
1144        set cmd [list git commit-tree $tree_id]
1145        set parents [concat $PARENT $MERGE_HEAD]
1146        if {[llength $parents] > 0} {
1147                foreach p $parents {
1148                        lappend cmd -p $p
1149                }
1150        } else {
1151                # git commit-tree writes to stderr during initial commit.
1152                lappend cmd 2>/dev/null
1153        }
1154        lappend cmd <$msg_p
1155        if {[catch {set cmt_id [eval exec $cmd]} err]} {
1156                error_popup "commit-tree failed:\n\n$err"
1157                set ui_status_value {Commit failed.}
1158                unlock_index
1159                return
1160        }
1161
1162        # -- Update the HEAD ref.
1163        #
1164        set reflogm commit
1165        if {$commit_type ne {normal}} {
1166                append reflogm " ($commit_type)"
1167        }
1168        set i [string first "\n" $msg]
1169        if {$i >= 0} {
1170                append reflogm {: } [string range $msg 0 [expr {$i - 1}]]
1171        } else {
1172                append reflogm {: } $msg
1173        }
1174        set cmd [list git update-ref -m $reflogm HEAD $cmt_id $curHEAD]
1175        if {[catch {eval exec $cmd} err]} {
1176                error_popup "update-ref failed:\n\n$err"
1177                set ui_status_value {Commit failed.}
1178                unlock_index
1179                return
1180        }
1181
1182        # -- Make sure our current branch exists.
1183        #
1184        if {$commit_type eq {initial}} {
1185                lappend all_heads $current_branch
1186                set all_heads [lsort -unique $all_heads]
1187                populate_branch_menu
1188        }
1189
1190        # -- Cleanup after ourselves.
1191        #
1192        catch {file delete $msg_p}
1193        catch {file delete [gitdir MERGE_HEAD]}
1194        catch {file delete [gitdir MERGE_MSG]}
1195        catch {file delete [gitdir SQUASH_MSG]}
1196        catch {file delete [gitdir GITGUI_MSG]}
1197
1198        # -- Let rerere do its thing.
1199        #
1200        if {[file isdirectory [gitdir rr-cache]]} {
1201                catch {exec git rerere}
1202        }
1203
1204        # -- Run the post-commit hook.
1205        #
1206        set pchook [gitdir hooks post-commit]
1207        if {[is_Windows] && [file isfile $pchook]} {
1208                set pchook [list sh -c [concat \
1209                        "if test -x \"$pchook\";" \
1210                        "then exec \"$pchook\";" \
1211                        "fi"]]
1212        } elseif {![file executable $pchook]} {
1213                set pchook {}
1214        }
1215        if {$pchook ne {}} {
1216                catch {exec $pchook &}
1217        }
1218
1219        $ui_comm delete 0.0 end
1220        $ui_comm edit reset
1221        $ui_comm edit modified false
1222
1223        if {$single_commit} do_quit
1224
1225        # -- Update in memory status
1226        #
1227        set selected_commit_type new
1228        set commit_type normal
1229        set HEAD $cmt_id
1230        set PARENT $cmt_id
1231        set MERGE_HEAD [list]
1232
1233        foreach path [array names file_states] {
1234                set s $file_states($path)
1235                set m [lindex $s 0]
1236                switch -glob -- $m {
1237                _O -
1238                _M -
1239                _D {continue}
1240                __ -
1241                A_ -
1242                M_ -
1243                D_ {
1244                        unset file_states($path)
1245                        catch {unset selected_paths($path)}
1246                }
1247                DO {
1248                        set file_states($path) [list _O [lindex $s 1] {} {}]
1249                }
1250                AM -
1251                AD -
1252                MM -
1253                MD {
1254                        set file_states($path) [list \
1255                                _[string index $m 1] \
1256                                [lindex $s 1] \
1257                                [lindex $s 3] \
1258                                {}]
1259                }
1260                }
1261        }
1262
1263        display_all_files
1264        unlock_index
1265        reshow_diff
1266        set ui_status_value \
1267                "Changes committed as [string range $cmt_id 0 7]."
1268}
1269
1270######################################################################
1271##
1272## fetch push
1273
1274proc fetch_from {remote} {
1275        set w [new_console \
1276                "fetch $remote" \
1277                "Fetching new changes from $remote"]
1278        set cmd [list git fetch]
1279        lappend cmd $remote
1280        console_exec $w $cmd console_done
1281}
1282
1283proc push_to {remote} {
1284        set w [new_console \
1285                "push $remote" \
1286                "Pushing changes to $remote"]
1287        set cmd [list git push]
1288        lappend cmd -v
1289        lappend cmd $remote
1290        console_exec $w $cmd console_done
1291}
1292
1293######################################################################
1294##
1295## ui helpers
1296
1297proc mapicon {w state path} {
1298        global all_icons
1299
1300        if {[catch {set r $all_icons($state$w)}]} {
1301                puts "error: no icon for $w state={$state} $path"
1302                return file_plain
1303        }
1304        return $r
1305}
1306
1307proc mapdesc {state path} {
1308        global all_descs
1309
1310        if {[catch {set r $all_descs($state)}]} {
1311                puts "error: no desc for state={$state} $path"
1312                return $state
1313        }
1314        return $r
1315}
1316
1317proc escape_path {path} {
1318        regsub -all "\n" $path "\\n" path
1319        return $path
1320}
1321
1322proc short_path {path} {
1323        return [escape_path [lindex [file split $path] end]]
1324}
1325
1326set next_icon_id 0
1327set null_sha1 [string repeat 0 40]
1328
1329proc merge_state {path new_state {head_info {}} {index_info {}}} {
1330        global file_states next_icon_id null_sha1
1331
1332        set s0 [string index $new_state 0]
1333        set s1 [string index $new_state 1]
1334
1335        if {[catch {set info $file_states($path)}]} {
1336                set state __
1337                set icon n[incr next_icon_id]
1338        } else {
1339                set state [lindex $info 0]
1340                set icon [lindex $info 1]
1341                if {$head_info eq {}}  {set head_info  [lindex $info 2]}
1342                if {$index_info eq {}} {set index_info [lindex $info 3]}
1343        }
1344
1345        if     {$s0 eq {?}} {set s0 [string index $state 0]} \
1346        elseif {$s0 eq {_}} {set s0 _}
1347
1348        if     {$s1 eq {?}} {set s1 [string index $state 1]} \
1349        elseif {$s1 eq {_}} {set s1 _}
1350
1351        if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
1352                set head_info [list 0 $null_sha1]
1353        } elseif {$s0 ne {_} && [string index $state 0] eq {_}
1354                && $head_info eq {}} {
1355                set head_info $index_info
1356        }
1357
1358        set file_states($path) [list $s0$s1 $icon \
1359                $head_info $index_info \
1360                ]
1361        return $state
1362}
1363
1364proc display_file_helper {w path icon_name old_m new_m} {
1365        global file_lists
1366
1367        if {$new_m eq {_}} {
1368                set lno [lsearch -sorted -exact $file_lists($w) $path]
1369                if {$lno >= 0} {
1370                        set file_lists($w) [lreplace $file_lists($w) $lno $lno]
1371                        incr lno
1372                        $w conf -state normal
1373                        $w delete $lno.0 [expr {$lno + 1}].0
1374                        $w conf -state disabled
1375                }
1376        } elseif {$old_m eq {_} && $new_m ne {_}} {
1377                lappend file_lists($w) $path
1378                set file_lists($w) [lsort -unique $file_lists($w)]
1379                set lno [lsearch -sorted -exact $file_lists($w) $path]
1380                incr lno
1381                $w conf -state normal
1382                $w image create $lno.0 \
1383                        -align center -padx 5 -pady 1 \
1384                        -name $icon_name \
1385                        -image [mapicon $w $new_m $path]
1386                $w insert $lno.1 "[escape_path $path]\n"
1387                $w conf -state disabled
1388        } elseif {$old_m ne $new_m} {
1389                $w conf -state normal
1390                $w image conf $icon_name -image [mapicon $w $new_m $path]
1391                $w conf -state disabled
1392        }
1393}
1394
1395proc display_file {path state} {
1396        global file_states selected_paths
1397        global ui_index ui_workdir
1398
1399        set old_m [merge_state $path $state]
1400        set s $file_states($path)
1401        set new_m [lindex $s 0]
1402        set icon_name [lindex $s 1]
1403
1404        set o [string index $old_m 0]
1405        set n [string index $new_m 0]
1406        if {$o eq {U}} {
1407                set o _
1408        }
1409        if {$n eq {U}} {
1410                set n _
1411        }
1412        display_file_helper     $ui_index $path $icon_name $o $n
1413
1414        if {[string index $old_m 0] eq {U}} {
1415                set o U
1416        } else {
1417                set o [string index $old_m 1]
1418        }
1419        if {[string index $new_m 0] eq {U}} {
1420                set n U
1421        } else {
1422                set n [string index $new_m 1]
1423        }
1424        display_file_helper     $ui_workdir $path $icon_name $o $n
1425
1426        if {$new_m eq {__}} {
1427                unset file_states($path)
1428                catch {unset selected_paths($path)}
1429        }
1430}
1431
1432proc display_all_files_helper {w path icon_name m} {
1433        global file_lists
1434
1435        lappend file_lists($w) $path
1436        set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
1437        $w image create end \
1438                -align center -padx 5 -pady 1 \
1439                -name $icon_name \
1440                -image [mapicon $w $m $path]
1441        $w insert end "[escape_path $path]\n"
1442}
1443
1444proc display_all_files {} {
1445        global ui_index ui_workdir
1446        global file_states file_lists
1447        global last_clicked
1448
1449        $ui_index conf -state normal
1450        $ui_workdir conf -state normal
1451
1452        $ui_index delete 0.0 end
1453        $ui_workdir delete 0.0 end
1454        set last_clicked {}
1455
1456        set file_lists($ui_index) [list]
1457        set file_lists($ui_workdir) [list]
1458
1459        foreach path [lsort [array names file_states]] {
1460                set s $file_states($path)
1461                set m [lindex $s 0]
1462                set icon_name [lindex $s 1]
1463
1464                set s [string index $m 0]
1465                if {$s ne {U} && $s ne {_}} {
1466                        display_all_files_helper $ui_index $path \
1467                                $icon_name $s
1468                }
1469
1470                if {[string index $m 0] eq {U}} {
1471                        set s U
1472                } else {
1473                        set s [string index $m 1]
1474                }
1475                if {$s ne {_}} {
1476                        display_all_files_helper $ui_workdir $path \
1477                                $icon_name $s
1478                }
1479        }
1480
1481        $ui_index conf -state disabled
1482        $ui_workdir conf -state disabled
1483}
1484
1485proc update_indexinfo {msg pathList after} {
1486        global update_index_cp ui_status_value
1487
1488        if {![lock_index update]} return
1489
1490        set update_index_cp 0
1491        set pathList [lsort $pathList]
1492        set totalCnt [llength $pathList]
1493        set batch [expr {int($totalCnt * .01) + 1}]
1494        if {$batch > 25} {set batch 25}
1495
1496        set ui_status_value [format \
1497                "$msg... %i/%i files (%.2f%%)" \
1498                $update_index_cp \
1499                $totalCnt \
1500                0.0]
1501        set fd [open "| git update-index -z --index-info" w]
1502        fconfigure $fd \
1503                -blocking 0 \
1504                -buffering full \
1505                -buffersize 512 \
1506                -encoding binary \
1507                -translation binary
1508        fileevent $fd writable [list \
1509                write_update_indexinfo \
1510                $fd \
1511                $pathList \
1512                $totalCnt \
1513                $batch \
1514                $msg \
1515                $after \
1516                ]
1517}
1518
1519proc write_update_indexinfo {fd pathList totalCnt batch msg after} {
1520        global update_index_cp ui_status_value
1521        global file_states current_diff_path
1522
1523        if {$update_index_cp >= $totalCnt} {
1524                close $fd
1525                unlock_index
1526                uplevel #0 $after
1527                return
1528        }
1529
1530        for {set i $batch} \
1531                {$update_index_cp < $totalCnt && $i > 0} \
1532                {incr i -1} {
1533                set path [lindex $pathList $update_index_cp]
1534                incr update_index_cp
1535
1536                set s $file_states($path)
1537                switch -glob -- [lindex $s 0] {
1538                A? {set new _O}
1539                M? {set new _M}
1540                D_ {set new _D}
1541                D? {set new _?}
1542                ?? {continue}
1543                }
1544                set info [lindex $s 2]
1545                if {$info eq {}} continue
1546
1547                puts -nonewline $fd "$info\t[encoding convertto $path]\0"
1548                display_file $path $new
1549        }
1550
1551        set ui_status_value [format \
1552                "$msg... %i/%i files (%.2f%%)" \
1553                $update_index_cp \
1554                $totalCnt \
1555                [expr {100.0 * $update_index_cp / $totalCnt}]]
1556}
1557
1558proc update_index {msg pathList after} {
1559        global update_index_cp ui_status_value
1560
1561        if {![lock_index update]} return
1562
1563        set update_index_cp 0
1564        set pathList [lsort $pathList]
1565        set totalCnt [llength $pathList]
1566        set batch [expr {int($totalCnt * .01) + 1}]
1567        if {$batch > 25} {set batch 25}
1568
1569        set ui_status_value [format \
1570                "$msg... %i/%i files (%.2f%%)" \
1571                $update_index_cp \
1572                $totalCnt \
1573                0.0]
1574        set fd [open "| git update-index --add --remove -z --stdin" w]
1575        fconfigure $fd \
1576                -blocking 0 \
1577                -buffering full \
1578                -buffersize 512 \
1579                -encoding binary \
1580                -translation binary
1581        fileevent $fd writable [list \
1582                write_update_index \
1583                $fd \
1584                $pathList \
1585                $totalCnt \
1586                $batch \
1587                $msg \
1588                $after \
1589                ]
1590}
1591
1592proc write_update_index {fd pathList totalCnt batch msg after} {
1593        global update_index_cp ui_status_value
1594        global file_states current_diff_path
1595
1596        if {$update_index_cp >= $totalCnt} {
1597                close $fd
1598                unlock_index
1599                uplevel #0 $after
1600                return
1601        }
1602
1603        for {set i $batch} \
1604                {$update_index_cp < $totalCnt && $i > 0} \
1605                {incr i -1} {
1606                set path [lindex $pathList $update_index_cp]
1607                incr update_index_cp
1608
1609                switch -glob -- [lindex $file_states($path) 0] {
1610                AD {set new __}
1611                ?D {set new D_}
1612                _O -
1613                AM {set new A_}
1614                U? {
1615                        if {[file exists $path]} {
1616                                set new M_
1617                        } else {
1618                                set new D_
1619                        }
1620                }
1621                ?M {set new M_}
1622                ?? {continue}
1623                }
1624                puts -nonewline $fd "[encoding convertto $path]\0"
1625                display_file $path $new
1626        }
1627
1628        set ui_status_value [format \
1629                "$msg... %i/%i files (%.2f%%)" \
1630                $update_index_cp \
1631                $totalCnt \
1632                [expr {100.0 * $update_index_cp / $totalCnt}]]
1633}
1634
1635proc checkout_index {msg pathList after} {
1636        global update_index_cp ui_status_value
1637
1638        if {![lock_index update]} return
1639
1640        set update_index_cp 0
1641        set pathList [lsort $pathList]
1642        set totalCnt [llength $pathList]
1643        set batch [expr {int($totalCnt * .01) + 1}]
1644        if {$batch > 25} {set batch 25}
1645
1646        set ui_status_value [format \
1647                "$msg... %i/%i files (%.2f%%)" \
1648                $update_index_cp \
1649                $totalCnt \
1650                0.0]
1651        set cmd [list git checkout-index]
1652        lappend cmd --index
1653        lappend cmd --quiet
1654        lappend cmd --force
1655        lappend cmd -z
1656        lappend cmd --stdin
1657        set fd [open "| $cmd " w]
1658        fconfigure $fd \
1659                -blocking 0 \
1660                -buffering full \
1661                -buffersize 512 \
1662                -encoding binary \
1663                -translation binary
1664        fileevent $fd writable [list \
1665                write_checkout_index \
1666                $fd \
1667                $pathList \
1668                $totalCnt \
1669                $batch \
1670                $msg \
1671                $after \
1672                ]
1673}
1674
1675proc write_checkout_index {fd pathList totalCnt batch msg after} {
1676        global update_index_cp ui_status_value
1677        global file_states current_diff_path
1678
1679        if {$update_index_cp >= $totalCnt} {
1680                close $fd
1681                unlock_index
1682                uplevel #0 $after
1683                return
1684        }
1685
1686        for {set i $batch} \
1687                {$update_index_cp < $totalCnt && $i > 0} \
1688                {incr i -1} {
1689                set path [lindex $pathList $update_index_cp]
1690                incr update_index_cp
1691                switch -glob -- [lindex $file_states($path) 0] {
1692                U? {continue}
1693                ?M -
1694                ?D {
1695                        puts -nonewline $fd "[encoding convertto $path]\0"
1696                        display_file $path ?_
1697                }
1698                }
1699        }
1700
1701        set ui_status_value [format \
1702                "$msg... %i/%i files (%.2f%%)" \
1703                $update_index_cp \
1704                $totalCnt \
1705                [expr {100.0 * $update_index_cp / $totalCnt}]]
1706}
1707
1708######################################################################
1709##
1710## branch management
1711
1712proc is_tracking_branch {name} {
1713        global tracking_branches
1714
1715        if {![catch {set info $tracking_branches($name)}]} {
1716                return 1
1717        }
1718        foreach t [array names tracking_branches] {
1719                if {[string match {*/\*} $t] && [string match $t $name]} {
1720                        return 1
1721                }
1722        }
1723        return 0
1724}
1725
1726proc load_all_heads {} {
1727        global all_heads
1728
1729        set all_heads [list]
1730        set fd [open "| git for-each-ref --format=%(refname) refs/heads" r]
1731        while {[gets $fd line] > 0} {
1732                if {[is_tracking_branch $line]} continue
1733                if {![regsub ^refs/heads/ $line {} name]} continue
1734                lappend all_heads $name
1735        }
1736        close $fd
1737
1738        set all_heads [lsort $all_heads]
1739}
1740
1741proc populate_branch_menu {} {
1742        global all_heads disable_on_lock
1743
1744        set m .mbar.branch
1745        set last [$m index last]
1746        for {set i 0} {$i <= $last} {incr i} {
1747                if {[$m type $i] eq {separator}} {
1748                        $m delete $i last
1749                        set new_dol [list]
1750                        foreach a $disable_on_lock {
1751                                if {[lindex $a 0] ne $m || [lindex $a 2] < $i} {
1752                                        lappend new_dol $a
1753                                }
1754                        }
1755                        set disable_on_lock $new_dol
1756                        break
1757                }
1758        }
1759
1760        if {$all_heads ne {}} {
1761                $m add separator
1762        }
1763        foreach b $all_heads {
1764                $m add radiobutton \
1765                        -label $b \
1766                        -command [list switch_branch $b] \
1767                        -variable current_branch \
1768                        -value $b \
1769                        -font font_ui
1770                lappend disable_on_lock \
1771                        [list $m entryconf [$m index last] -state]
1772        }
1773}
1774
1775proc all_tracking_branches {} {
1776        global tracking_branches
1777
1778        set all_trackings {}
1779        set cmd {}
1780        foreach name [array names tracking_branches] {
1781                if {[regsub {/\*$} $name {} name]} {
1782                        lappend cmd $name
1783                } else {
1784                        regsub ^refs/(heads|remotes)/ $name {} name
1785                        lappend all_trackings $name
1786                }
1787        }
1788
1789        if {$cmd ne {}} {
1790                set fd [open "| git for-each-ref --format=%(refname) $cmd" r]
1791                while {[gets $fd name] > 0} {
1792                        regsub ^refs/(heads|remotes)/ $name {} name
1793                        lappend all_trackings $name
1794                }
1795                close $fd
1796        }
1797
1798        return [lsort -unique $all_trackings]
1799}
1800
1801proc do_create_branch_action {w} {
1802        global all_heads null_sha1 repo_config
1803        global create_branch_checkout create_branch_revtype
1804        global create_branch_head create_branch_trackinghead
1805        global create_branch_name create_branch_revexp
1806
1807        set newbranch $create_branch_name
1808        if {$newbranch eq {}
1809                || $newbranch eq $repo_config(gui.newbranchtemplate)} {
1810                tk_messageBox \
1811                        -icon error \
1812                        -type ok \
1813                        -title [wm title $w] \
1814                        -parent $w \
1815                        -message "Please supply a branch name."
1816                focus $w.desc.name_t
1817                return
1818        }
1819        if {![catch {exec git show-ref --verify -- "refs/heads/$newbranch"}]} {
1820                tk_messageBox \
1821                        -icon error \
1822                        -type ok \
1823                        -title [wm title $w] \
1824                        -parent $w \
1825                        -message "Branch '$newbranch' already exists."
1826                focus $w.desc.name_t
1827                return
1828        }
1829        if {[catch {exec git check-ref-format "heads/$newbranch"}]} {
1830                tk_messageBox \
1831                        -icon error \
1832                        -type ok \
1833                        -title [wm title $w] \
1834                        -parent $w \
1835                        -message "We do not like '$newbranch' as a branch name."
1836                focus $w.desc.name_t
1837                return
1838        }
1839
1840        set rev {}
1841        switch -- $create_branch_revtype {
1842        head {set rev $create_branch_head}
1843        tracking {set rev $create_branch_trackinghead}
1844        expression {set rev $create_branch_revexp}
1845        }
1846        if {[catch {set cmt [exec git rev-parse --verify "${rev}^0"]}]} {
1847                tk_messageBox \
1848                        -icon error \
1849                        -type ok \
1850                        -title [wm title $w] \
1851                        -parent $w \
1852                        -message "Invalid starting revision: $rev"
1853                return
1854        }
1855        set cmd [list git update-ref]
1856        lappend cmd -m
1857        lappend cmd "branch: Created from $rev"
1858        lappend cmd "refs/heads/$newbranch"
1859        lappend cmd $cmt
1860        lappend cmd $null_sha1
1861        if {[catch {eval exec $cmd} err]} {
1862                tk_messageBox \
1863                        -icon error \
1864                        -type ok \
1865                        -title [wm title $w] \
1866                        -parent $w \
1867                        -message "Failed to create '$newbranch'.\n\n$err"
1868                return
1869        }
1870
1871        lappend all_heads $newbranch
1872        set all_heads [lsort $all_heads]
1873        populate_branch_menu
1874        destroy $w
1875        if {$create_branch_checkout} {
1876                switch_branch $newbranch
1877        }
1878}
1879
1880proc radio_selector {varname value args} {
1881        upvar #0 $varname var
1882        set var $value
1883}
1884
1885trace add variable create_branch_head write \
1886        [list radio_selector create_branch_revtype head]
1887trace add variable create_branch_trackinghead write \
1888        [list radio_selector create_branch_revtype tracking]
1889
1890trace add variable delete_branch_head write \
1891        [list radio_selector delete_branch_checktype head]
1892trace add variable delete_branch_trackinghead write \
1893        [list radio_selector delete_branch_checktype tracking]
1894
1895proc do_create_branch {} {
1896        global all_heads current_branch repo_config
1897        global create_branch_checkout create_branch_revtype
1898        global create_branch_head create_branch_trackinghead
1899        global create_branch_name create_branch_revexp
1900
1901        set w .branch_editor
1902        toplevel $w
1903        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
1904
1905        label $w.header -text {Create New Branch} \
1906                -font font_uibold
1907        pack $w.header -side top -fill x
1908
1909        frame $w.buttons
1910        button $w.buttons.create -text Create \
1911                -font font_ui \
1912                -default active \
1913                -command [list do_create_branch_action $w]
1914        pack $w.buttons.create -side right
1915        button $w.buttons.cancel -text {Cancel} \
1916                -font font_ui \
1917                -command [list destroy $w]
1918        pack $w.buttons.cancel -side right -padx 5
1919        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
1920
1921        labelframe $w.desc \
1922                -text {Branch Description} \
1923                -font font_ui
1924        label $w.desc.name_l -text {Name:} -font font_ui
1925        entry $w.desc.name_t \
1926                -borderwidth 1 \
1927                -relief sunken \
1928                -width 40 \
1929                -textvariable create_branch_name \
1930                -font font_ui \
1931                -validate key \
1932                -validatecommand {
1933                        if {%d == 1 && [regexp {[~^:?*\[\0- ]} %S]} {return 0}
1934                        return 1
1935                }
1936        grid $w.desc.name_l $w.desc.name_t -sticky we -padx {0 5}
1937        grid columnconfigure $w.desc 1 -weight 1
1938        pack $w.desc -anchor nw -fill x -pady 5 -padx 5
1939
1940        labelframe $w.from \
1941                -text {Starting Revision} \
1942                -font font_ui
1943        radiobutton $w.from.head_r \
1944                -text {Local Branch:} \
1945                -value head \
1946                -variable create_branch_revtype \
1947                -font font_ui
1948        eval tk_optionMenu $w.from.head_m create_branch_head $all_heads
1949        grid $w.from.head_r $w.from.head_m -sticky w
1950        set all_trackings [all_tracking_branches]
1951        if {$all_trackings ne {}} {
1952                set create_branch_trackinghead [lindex $all_trackings 0]
1953                radiobutton $w.from.tracking_r \
1954                        -text {Tracking Branch:} \
1955                        -value tracking \
1956                        -variable create_branch_revtype \
1957                        -font font_ui
1958                eval tk_optionMenu $w.from.tracking_m \
1959                        create_branch_trackinghead \
1960                        $all_trackings
1961                grid $w.from.tracking_r $w.from.tracking_m -sticky w
1962        }
1963        radiobutton $w.from.exp_r \
1964                -text {Revision Expression:} \
1965                -value expression \
1966                -variable create_branch_revtype \
1967                -font font_ui
1968        entry $w.from.exp_t \
1969                -borderwidth 1 \
1970                -relief sunken \
1971                -width 50 \
1972                -textvariable create_branch_revexp \
1973                -font font_ui \
1974                -validate key \
1975                -validatecommand {
1976                        if {%d == 1 && [regexp {\s} %S]} {return 0}
1977                        if {%d == 1 && [string length %S] > 0} {
1978                                set create_branch_revtype expression
1979                        }
1980                        return 1
1981                }
1982        grid $w.from.exp_r $w.from.exp_t -sticky we -padx {0 5}
1983        grid columnconfigure $w.from 1 -weight 1
1984        pack $w.from -anchor nw -fill x -pady 5 -padx 5
1985
1986        labelframe $w.postActions \
1987                -text {Post Creation Actions} \
1988                -font font_ui
1989        checkbutton $w.postActions.checkout \
1990                -text {Checkout after creation} \
1991                -variable create_branch_checkout \
1992                -font font_ui
1993        pack $w.postActions.checkout -anchor nw
1994        pack $w.postActions -anchor nw -fill x -pady 5 -padx 5
1995
1996        set create_branch_checkout 1
1997        set create_branch_head $current_branch
1998        set create_branch_revtype head
1999        set create_branch_name $repo_config(gui.newbranchtemplate)
2000        set create_branch_revexp {}
2001
2002        bind $w <Visibility> "
2003                grab $w
2004                $w.desc.name_t icursor end
2005                focus $w.desc.name_t
2006        "
2007        bind $w <Key-Escape> "destroy $w"
2008        bind $w <Key-Return> "do_create_branch_action $w;break"
2009        wm title $w "[appname] ([reponame]): Create Branch"
2010        tkwait window $w
2011}
2012
2013proc do_delete_branch_action {w} {
2014        global all_heads
2015        global delete_branch_checktype delete_branch_head delete_branch_trackinghead
2016
2017        set check_rev {}
2018        switch -- $delete_branch_checktype {
2019        head {set check_rev $delete_branch_head}
2020        tracking {set check_rev $delete_branch_trackinghead}
2021        always {set check_rev {:none}}
2022        }
2023        if {$check_rev eq {:none}} {
2024                set check_cmt {}
2025        } elseif {[catch {set check_cmt [exec git rev-parse --verify "${check_rev}^0"]}]} {
2026                tk_messageBox \
2027                        -icon error \
2028                        -type ok \
2029                        -title [wm title $w] \
2030                        -parent $w \
2031                        -message "Invalid check revision: $check_rev"
2032                return
2033        }
2034
2035        set to_delete [list]
2036        set not_merged [list]
2037        foreach i [$w.list.l curselection] {
2038                set b [$w.list.l get $i]
2039                if {[catch {set o [exec git rev-parse --verify $b]}]} continue
2040                if {$check_cmt ne {}} {
2041                        if {$b eq $check_rev} continue
2042                        if {[catch {set m [exec git merge-base $o $check_cmt]}]} continue
2043                        if {$o ne $m} {
2044                                lappend not_merged $b
2045                                continue
2046                        }
2047                }
2048                lappend to_delete [list $b $o]
2049        }
2050        if {$not_merged ne {}} {
2051                set msg "The following branches are not completely merged into $check_rev:
2052
2053 - [join $not_merged "\n - "]"
2054                tk_messageBox \
2055                        -icon info \
2056                        -type ok \
2057                        -title [wm title $w] \
2058                        -parent $w \
2059                        -message $msg
2060        }
2061        if {$to_delete eq {}} return
2062        if {$delete_branch_checktype eq {always}} {
2063                set msg {Recovering deleted branches is difficult.
2064
2065Delete the selected branches?}
2066                if {[tk_messageBox \
2067                        -icon warning \
2068                        -type yesno \
2069                        -title [wm title $w] \
2070                        -parent $w \
2071                        -message $msg] ne yes} {
2072                        return
2073                }
2074        }
2075
2076        set failed {}
2077        foreach i $to_delete {
2078                set b [lindex $i 0]
2079                set o [lindex $i 1]
2080                if {[catch {exec git update-ref -d "refs/heads/$b" $o} err]} {
2081                        append failed " - $b: $err\n"
2082                } else {
2083                        set x [lsearch -sorted -exact $all_heads $b]
2084                        if {$x >= 0} {
2085                                set all_heads [lreplace $all_heads $x $x]
2086                        }
2087                }
2088        }
2089
2090        if {$failed ne {}} {
2091                tk_messageBox \
2092                        -icon error \
2093                        -type ok \
2094                        -title [wm title $w] \
2095                        -parent $w \
2096                        -message "Failed to delete branches:\n$failed"
2097        }
2098
2099        set all_heads [lsort $all_heads]
2100        populate_branch_menu
2101        destroy $w
2102}
2103
2104proc do_delete_branch {} {
2105        global all_heads tracking_branches current_branch
2106        global delete_branch_checktype delete_branch_head delete_branch_trackinghead
2107
2108        set w .branch_editor
2109        toplevel $w
2110        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
2111
2112        label $w.header -text {Delete Local Branch} \
2113                -font font_uibold
2114        pack $w.header -side top -fill x
2115
2116        frame $w.buttons
2117        button $w.buttons.create -text Delete \
2118                -font font_ui \
2119                -command [list do_delete_branch_action $w]
2120        pack $w.buttons.create -side right
2121        button $w.buttons.cancel -text {Cancel} \
2122                -font font_ui \
2123                -command [list destroy $w]
2124        pack $w.buttons.cancel -side right -padx 5
2125        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
2126
2127        labelframe $w.list \
2128                -text {Local Branches} \
2129                -font font_ui
2130        listbox $w.list.l \
2131                -height 10 \
2132                -width 50 \
2133                -selectmode extended \
2134                -font font_ui
2135        foreach h $all_heads {
2136                if {$h ne $current_branch} {
2137                        $w.list.l insert end $h
2138                }
2139        }
2140        pack $w.list.l -fill both -pady 5 -padx 5
2141        pack $w.list -fill both -pady 5 -padx 5
2142
2143        labelframe $w.validate \
2144                -text {Delete Only If} \
2145                -font font_ui
2146        radiobutton $w.validate.head_r \
2147                -text {Merged Into Local Branch:} \
2148                -value head \
2149                -variable delete_branch_checktype \
2150                -font font_ui
2151        eval tk_optionMenu $w.validate.head_m delete_branch_head $all_heads
2152        grid $w.validate.head_r $w.validate.head_m -sticky w
2153        set all_trackings [all_tracking_branches]
2154        if {$all_trackings ne {}} {
2155                set delete_branch_trackinghead [lindex $all_trackings 0]
2156                radiobutton $w.validate.tracking_r \
2157                        -text {Merged Into Tracking Branch:} \
2158                        -value tracking \
2159                        -variable delete_branch_checktype \
2160                        -font font_ui
2161                eval tk_optionMenu $w.validate.tracking_m \
2162                        delete_branch_trackinghead \
2163                        $all_trackings
2164                grid $w.validate.tracking_r $w.validate.tracking_m -sticky w
2165        }
2166        radiobutton $w.validate.always_r \
2167                -text {Always (Do not perform merge checks)} \
2168                -value always \
2169                -variable delete_branch_checktype \
2170                -font font_ui
2171        grid $w.validate.always_r -columnspan 2 -sticky w
2172        grid columnconfigure $w.validate 1 -weight 1
2173        pack $w.validate -anchor nw -fill x -pady 5 -padx 5
2174
2175        set delete_branch_head $current_branch
2176        set delete_branch_checktype head
2177
2178        bind $w <Visibility> "grab $w; focus $w"
2179        bind $w <Key-Escape> "destroy $w"
2180        wm title $w "[appname] ([reponame]): Delete Branch"
2181        tkwait window $w
2182}
2183
2184proc switch_branch {new_branch} {
2185        global HEAD commit_type current_branch repo_config
2186
2187        if {![lock_index switch]} return
2188
2189        # -- Our in memory state should match the repository.
2190        #
2191        repository_state curType curHEAD curMERGE_HEAD
2192        if {[string match amend* $commit_type]
2193                && $curType eq {normal}
2194                && $curHEAD eq $HEAD} {
2195        } elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
2196                info_popup {Last scanned state does not match repository state.
2197
2198Another Git program has modified this repository
2199since the last scan.  A rescan must be performed
2200before the current branch can be changed.
2201
2202The rescan will be automatically started now.
2203}
2204                unlock_index
2205                rescan {set ui_status_value {Ready.}}
2206                return
2207        }
2208
2209        # -- Don't do a pointless switch.
2210        #
2211        if {$current_branch eq $new_branch} {
2212                unlock_index
2213                return
2214        }
2215
2216        if {$repo_config(gui.trustmtime) eq {true}} {
2217                switch_branch_stage2 {} $new_branch
2218        } else {
2219                set ui_status_value {Refreshing file status...}
2220                set cmd [list git update-index]
2221                lappend cmd -q
2222                lappend cmd --unmerged
2223                lappend cmd --ignore-missing
2224                lappend cmd --refresh
2225                set fd_rf [open "| $cmd" r]
2226                fconfigure $fd_rf -blocking 0 -translation binary
2227                fileevent $fd_rf readable \
2228                        [list switch_branch_stage2 $fd_rf $new_branch]
2229        }
2230}
2231
2232proc switch_branch_stage2 {fd_rf new_branch} {
2233        global ui_status_value HEAD
2234
2235        if {$fd_rf ne {}} {
2236                read $fd_rf
2237                if {![eof $fd_rf]} return
2238                close $fd_rf
2239        }
2240
2241        set ui_status_value "Updating working directory to '$new_branch'..."
2242        set cmd [list git read-tree]
2243        lappend cmd -m
2244        lappend cmd -u
2245        lappend cmd --exclude-per-directory=.gitignore
2246        lappend cmd $HEAD
2247        lappend cmd $new_branch
2248        set fd_rt [open "| $cmd" r]
2249        fconfigure $fd_rt -blocking 0 -translation binary
2250        fileevent $fd_rt readable \
2251                [list switch_branch_readtree_wait $fd_rt $new_branch]
2252}
2253
2254proc switch_branch_readtree_wait {fd_rt new_branch} {
2255        global selected_commit_type commit_type HEAD MERGE_HEAD PARENT
2256        global current_branch
2257        global ui_comm ui_status_value
2258
2259        # -- We never get interesting output on stdout; only stderr.
2260        #
2261        read $fd_rt
2262        fconfigure $fd_rt -blocking 1
2263        if {![eof $fd_rt]} {
2264                fconfigure $fd_rt -blocking 0
2265                return
2266        }
2267
2268        # -- The working directory wasn't in sync with the index and
2269        #    we'd have to overwrite something to make the switch. A
2270        #    merge is required.
2271        #
2272        if {[catch {close $fd_rt} err]} {
2273                regsub {^fatal: } $err {} err
2274                warn_popup "File level merge required.
2275
2276$err
2277
2278Staying on branch '$current_branch'."
2279                set ui_status_value "Aborted checkout of '$new_branch' (file level merging is required)."
2280                unlock_index
2281                return
2282        }
2283
2284        # -- Update the symbolic ref.  Core git doesn't even check for failure
2285        #    here, it Just Works(tm).  If it doesn't we are in some really ugly
2286        #    state that is difficult to recover from within git-gui.
2287        #
2288        if {[catch {exec git symbolic-ref HEAD "refs/heads/$new_branch"} err]} {
2289                error_popup "Failed to set current branch.
2290
2291This working directory is only partially switched.
2292We successfully updated your files, but failed to
2293update an internal Git file.
2294
2295This should not have occurred.  [appname] will now
2296close and give up.
2297
2298$err"
2299                do_quit
2300                return
2301        }
2302
2303        # -- Update our repository state.  If we were previously in amend mode
2304        #    we need to toss the current buffer and do a full rescan to update
2305        #    our file lists.  If we weren't in amend mode our file lists are
2306        #    accurate and we can avoid the rescan.
2307        #
2308        unlock_index
2309        set selected_commit_type new
2310        if {[string match amend* $commit_type]} {
2311                $ui_comm delete 0.0 end
2312                $ui_comm edit reset
2313                $ui_comm edit modified false
2314                rescan {set ui_status_value "Checked out branch '$current_branch'."}
2315        } else {
2316                repository_state commit_type HEAD MERGE_HEAD
2317                set PARENT $HEAD
2318                set ui_status_value "Checked out branch '$current_branch'."
2319        }
2320}
2321
2322######################################################################
2323##
2324## remote management
2325
2326proc load_all_remotes {} {
2327        global repo_config
2328        global all_remotes tracking_branches
2329
2330        set all_remotes [list]
2331        array unset tracking_branches
2332
2333        set rm_dir [gitdir remotes]
2334        if {[file isdirectory $rm_dir]} {
2335                set all_remotes [glob \
2336                        -types f \
2337                        -tails \
2338                        -nocomplain \
2339                        -directory $rm_dir *]
2340
2341                foreach name $all_remotes {
2342                        catch {
2343                                set fd [open [file join $rm_dir $name] r]
2344                                while {[gets $fd line] >= 0} {
2345                                        if {![regexp {^Pull:[   ]*([^:]+):(.+)$} \
2346                                                $line line src dst]} continue
2347                                        if {![regexp ^refs/ $dst]} {
2348                                                set dst "refs/heads/$dst"
2349                                        }
2350                                        set tracking_branches($dst) [list $name $src]
2351                                }
2352                                close $fd
2353                        }
2354                }
2355        }
2356
2357        foreach line [array names repo_config remote.*.url] {
2358                if {![regexp ^remote\.(.*)\.url\$ $line line name]} continue
2359                lappend all_remotes $name
2360
2361                if {[catch {set fl $repo_config(remote.$name.fetch)}]} {
2362                        set fl {}
2363                }
2364                foreach line $fl {
2365                        if {![regexp {^([^:]+):(.+)$} $line line src dst]} continue
2366                        if {![regexp ^refs/ $dst]} {
2367                                set dst "refs/heads/$dst"
2368                        }
2369                        set tracking_branches($dst) [list $name $src]
2370                }
2371        }
2372
2373        set all_remotes [lsort -unique $all_remotes]
2374}
2375
2376proc populate_fetch_menu {} {
2377        global all_remotes repo_config
2378
2379        set m .mbar.fetch
2380        foreach r $all_remotes {
2381                set enable 0
2382                if {![catch {set a $repo_config(remote.$r.url)}]} {
2383                        if {![catch {set a $repo_config(remote.$r.fetch)}]} {
2384                                set enable 1
2385                        }
2386                } else {
2387                        catch {
2388                                set fd [open [gitdir remotes $r] r]
2389                                while {[gets $fd n] >= 0} {
2390                                        if {[regexp {^Pull:[ \t]*([^:]+):} $n]} {
2391                                                set enable 1
2392                                                break
2393                                        }
2394                                }
2395                                close $fd
2396                        }
2397                }
2398
2399                if {$enable} {
2400                        $m add command \
2401                                -label "Fetch from $r..." \
2402                                -command [list fetch_from $r] \
2403                                -font font_ui
2404                }
2405        }
2406}
2407
2408proc populate_push_menu {} {
2409        global all_remotes repo_config
2410
2411        set m .mbar.push
2412        set fast_count 0
2413        foreach r $all_remotes {
2414                set enable 0
2415                if {![catch {set a $repo_config(remote.$r.url)}]} {
2416                        if {![catch {set a $repo_config(remote.$r.push)}]} {
2417                                set enable 1
2418                        }
2419                } else {
2420                        catch {
2421                                set fd [open [gitdir remotes $r] r]
2422                                while {[gets $fd n] >= 0} {
2423                                        if {[regexp {^Push:[ \t]*([^:]+):} $n]} {
2424                                                set enable 1
2425                                                break
2426                                        }
2427                                }
2428                                close $fd
2429                        }
2430                }
2431
2432                if {$enable} {
2433                        if {!$fast_count} {
2434                                $m add separator
2435                        }
2436                        $m add command \
2437                                -label "Push to $r..." \
2438                                -command [list push_to $r] \
2439                                -font font_ui
2440                        incr fast_count
2441                }
2442        }
2443}
2444
2445proc start_push_anywhere_action {w} {
2446        global push_urltype push_remote push_url push_thin push_tags
2447
2448        set r_url {}
2449        switch -- $push_urltype {
2450        remote {set r_url $push_remote}
2451        url {set r_url $push_url}
2452        }
2453        if {$r_url eq {}} return
2454
2455        set cmd [list git push]
2456        lappend cmd -v
2457        if {$push_thin} {
2458                lappend cmd --thin
2459        }
2460        if {$push_tags} {
2461                lappend cmd --tags
2462        }
2463        lappend cmd $r_url
2464        set cnt 0
2465        foreach i [$w.source.l curselection] {
2466                set b [$w.source.l get $i]
2467                lappend cmd "refs/heads/$b:refs/heads/$b"
2468                incr cnt
2469        }
2470        if {$cnt == 0} {
2471                return
2472        } elseif {$cnt == 1} {
2473                set unit branch
2474        } else {
2475                set unit branches
2476        }
2477
2478        set cons [new_console "push $r_url" "Pushing $cnt $unit to $r_url"]
2479        console_exec $cons $cmd console_done
2480        destroy $w
2481}
2482
2483trace add variable push_remote write \
2484        [list radio_selector push_urltype remote]
2485
2486proc do_push_anywhere {} {
2487        global all_heads all_remotes current_branch
2488        global push_urltype push_remote push_url push_thin push_tags
2489
2490        set w .push_setup
2491        toplevel $w
2492        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
2493
2494        label $w.header -text {Push Branches} -font font_uibold
2495        pack $w.header -side top -fill x
2496
2497        frame $w.buttons
2498        button $w.buttons.create -text Push \
2499                -font font_ui \
2500                -command [list start_push_anywhere_action $w]
2501        pack $w.buttons.create -side right
2502        button $w.buttons.cancel -text {Cancel} \
2503                -font font_ui \
2504                -command [list destroy $w]
2505        pack $w.buttons.cancel -side right -padx 5
2506        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
2507
2508        labelframe $w.source \
2509                -text {Source Branches} \
2510                -font font_ui
2511        listbox $w.source.l \
2512                -height 10 \
2513                -width 50 \
2514                -selectmode extended \
2515                -font font_ui
2516        foreach h $all_heads {
2517                $w.source.l insert end $h
2518                if {$h eq $current_branch} {
2519                        $w.source.l select set end
2520                }
2521        }
2522        pack $w.source.l -fill both -pady 5 -padx 5
2523        pack $w.source -fill both -pady 5 -padx 5
2524
2525        labelframe $w.dest \
2526                -text {Destination Repository} \
2527                -font font_ui
2528        if {$all_remotes ne {}} {
2529                radiobutton $w.dest.remote_r \
2530                        -text {Remote:} \
2531                        -value remote \
2532                        -variable push_urltype \
2533                        -font font_ui
2534                eval tk_optionMenu $w.dest.remote_m push_remote $all_remotes
2535                grid $w.dest.remote_r $w.dest.remote_m -sticky w
2536                if {[lsearch -sorted -exact $all_remotes origin] != -1} {
2537                        set push_remote origin
2538                } else {
2539                        set push_remote [lindex $all_remotes 0]
2540                }
2541                set push_urltype remote
2542        } else {
2543                set push_urltype url
2544        }
2545        radiobutton $w.dest.url_r \
2546                -text {Arbitrary URL:} \
2547                -value url \
2548                -variable push_urltype \
2549                -font font_ui
2550        entry $w.dest.url_t \
2551                -borderwidth 1 \
2552                -relief sunken \
2553                -width 50 \
2554                -textvariable push_url \
2555                -font font_ui \
2556                -validate key \
2557                -validatecommand {
2558                        if {%d == 1 && [regexp {\s} %S]} {return 0}
2559                        if {%d == 1 && [string length %S] > 0} {
2560                                set push_urltype url
2561                        }
2562                        return 1
2563                }
2564        grid $w.dest.url_r $w.dest.url_t -sticky we -padx {0 5}
2565        grid columnconfigure $w.dest 1 -weight 1
2566        pack $w.dest -anchor nw -fill x -pady 5 -padx 5
2567
2568        labelframe $w.options \
2569                -text {Transfer Options} \
2570                -font font_ui
2571        checkbutton $w.options.thin \
2572                -text {Use thin pack (for slow network connections)} \
2573                -variable push_thin \
2574                -font font_ui
2575        grid $w.options.thin -columnspan 2 -sticky w
2576        checkbutton $w.options.tags \
2577                -text {Include tags} \
2578                -variable push_tags \
2579                -font font_ui
2580        grid $w.options.tags -columnspan 2 -sticky w
2581        grid columnconfigure $w.options 1 -weight 1
2582        pack $w.options -anchor nw -fill x -pady 5 -padx 5
2583
2584        set push_url {}
2585        set push_thin 0
2586        set push_tags 0
2587
2588        bind $w <Visibility> "grab $w"
2589        bind $w <Key-Escape> "destroy $w"
2590        wm title $w "[appname] ([reponame]): Push"
2591        tkwait window $w
2592}
2593
2594######################################################################
2595##
2596## merge
2597
2598proc can_merge {} {
2599        global HEAD commit_type file_states
2600
2601        if {[string match amend* $commit_type]} {
2602                info_popup {Cannot merge while amending.
2603
2604You must finish amending this commit before
2605starting any type of merge.
2606}
2607                return 0
2608        }
2609
2610        if {[committer_ident] eq {}} {return 0}
2611        if {![lock_index merge]} {return 0}
2612
2613        # -- Our in memory state should match the repository.
2614        #
2615        repository_state curType curHEAD curMERGE_HEAD
2616        if {$commit_type ne $curType || $HEAD ne $curHEAD} {
2617                info_popup {Last scanned state does not match repository state.
2618
2619Another Git program has modified this repository
2620since the last scan.  A rescan must be performed
2621before a merge can be performed.
2622
2623The rescan will be automatically started now.
2624}
2625                unlock_index
2626                rescan {set ui_status_value {Ready.}}
2627                return 0
2628        }
2629
2630        foreach path [array names file_states] {
2631                switch -glob -- [lindex $file_states($path) 0] {
2632                U? {
2633                        error_popup "You are in the middle of a conflicted merge.
2634
2635File [short_path $path] has merge conflicts.
2636
2637You must resolve them, add the file, and commit to
2638complete the current merge.  Only then can you
2639begin another merge.
2640"
2641                        unlock_index
2642                        return 0
2643                }
2644                }
2645        }
2646
2647        return 1
2648}
2649
2650proc visualize_local_merge {w} {
2651        set revs {}
2652        foreach i [$w.source.l curselection] {
2653                lappend revs [$w.source.l get $i]
2654        }
2655        if {$revs eq {}} return
2656        lappend revs --not HEAD
2657        do_gitk $revs
2658}
2659
2660proc start_local_merge_action {w} {
2661        global HEAD ui_status_value current_branch
2662
2663        set cmd [list git merge]
2664        set names {}
2665        set revcnt 0
2666        foreach i [$w.source.l curselection] {
2667                set b [$w.source.l get $i]
2668                lappend cmd $b
2669                lappend names $b
2670                incr revcnt
2671        }
2672
2673        if {$revcnt == 0} {
2674                return
2675        } elseif {$revcnt == 1} {
2676                set unit branch
2677        } elseif {$revcnt <= 15} {
2678                set unit branches
2679        } else {
2680                tk_messageBox \
2681                        -icon error \
2682                        -type ok \
2683                        -title [wm title $w] \
2684                        -parent $w \
2685                        -message "Too many branches selected.
2686
2687You have requested to merge $revcnt branches
2688in an octopus merge.  This exceeds Git's
2689internal limit of 15 branches per merge.
2690
2691Please select fewer branches.  To merge more
2692than 15 branches, merge the branches in batches.
2693"
2694                return
2695        }
2696
2697        set msg "Merging $current_branch, [join $names {, }]"
2698        set ui_status_value "$msg..."
2699        set cons [new_console "Merge" $msg]
2700        console_exec $cons $cmd [list finish_merge $revcnt]
2701        bind $w <Destroy> {}
2702        destroy $w
2703}
2704
2705proc finish_merge {revcnt w ok} {
2706        console_done $w $ok
2707        if {$ok} {
2708                set msg {Merge completed successfully.}
2709        } else {
2710                if {$revcnt != 1} {
2711                        info_popup "Octopus merge failed.
2712
2713Your merge of $revcnt branches has failed.
2714
2715There are file-level conflicts between the
2716branches which must be resolved manually.
2717
2718The working directory will now be reset.
2719
2720You can attempt this merge again
2721by merging only one branch at a time." $w
2722
2723                        set fd [open "| git read-tree --reset -u HEAD" r]
2724                        fconfigure $fd -blocking 0 -translation binary
2725                        fileevent $fd readable [list reset_hard_wait $fd]
2726                        set ui_status_value {Aborting... please wait...}
2727                        return
2728                }
2729
2730                set msg {Merge failed.  Conflict resolution is required.}
2731        }
2732        unlock_index
2733        rescan [list set ui_status_value $msg]
2734}
2735
2736proc do_local_merge {} {
2737        global current_branch
2738
2739        if {![can_merge]} return
2740
2741        set w .merge_setup
2742        toplevel $w
2743        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
2744
2745        label $w.header \
2746                -text "Merge Into $current_branch" \
2747                -font font_uibold
2748        pack $w.header -side top -fill x
2749
2750        frame $w.buttons
2751        button $w.buttons.visualize -text Visualize \
2752                -font font_ui \
2753                -command [list visualize_local_merge $w]
2754        pack $w.buttons.visualize -side left
2755        button $w.buttons.create -text Merge \
2756                -font font_ui \
2757                -command [list start_local_merge_action $w]
2758        pack $w.buttons.create -side right
2759        button $w.buttons.cancel -text {Cancel} \
2760                -font font_ui \
2761                -command [list destroy $w]
2762        pack $w.buttons.cancel -side right -padx 5
2763        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
2764
2765        labelframe $w.source \
2766                -text {Source Branches} \
2767                -font font_ui
2768        listbox $w.source.l \
2769                -height 10 \
2770                -width 25 \
2771                -selectmode extended \
2772                -yscrollcommand [list $w.source.sby set] \
2773                -font font_ui
2774        scrollbar $w.source.sby -command [list $w.source.l yview]
2775        pack $w.source.sby -side right -fill y
2776        pack $w.source.l -side left -fill both -expand 1
2777        pack $w.source -fill both -expand 1 -pady 5 -padx 5
2778
2779        set cmd [list git for-each-ref]
2780        lappend cmd {--format=%(objectname) %(refname)}
2781        lappend cmd refs/heads
2782        lappend cmd refs/remotes
2783        set fr_fd [open "| $cmd" r]
2784        fconfigure $fr_fd -translation binary
2785        while {[gets $fr_fd line] > 0} {
2786                set line [split $line { }]
2787                set sha1([lindex $line 0]) [lindex $line 1]
2788        }
2789        close $fr_fd
2790
2791        set to_show {}
2792        set fr_fd [open "| git rev-list --all --not HEAD"]
2793        while {[gets $fr_fd line] > 0} {
2794                if {[catch {set ref $sha1($line)}]} continue
2795                regsub ^refs/(heads|remotes)/ $ref {} ref
2796                lappend to_show $ref
2797        }
2798        close $fr_fd
2799
2800        foreach ref [lsort -unique $to_show] {
2801                $w.source.l insert end $ref
2802        }
2803
2804        bind $w <Visibility> "grab $w"
2805        bind $w <Key-Escape> "unlock_index;destroy $w"
2806        bind $w <Destroy> unlock_index
2807        wm title $w "[appname] ([reponame]): Merge"
2808        tkwait window $w
2809}
2810
2811proc do_reset_hard {} {
2812        global HEAD commit_type file_states
2813
2814        if {[string match amend* $commit_type]} {
2815                info_popup {Cannot abort while amending.
2816
2817You must finish amending this commit.
2818}
2819                return
2820        }
2821
2822        if {![lock_index abort]} return
2823
2824        if {[string match *merge* $commit_type]} {
2825                set op merge
2826        } else {
2827                set op commit
2828        }
2829
2830        if {[ask_popup "Abort $op?
2831
2832Aborting the current $op will cause
2833*ALL* uncommitted changes to be lost.
2834
2835Continue with aborting the current $op?"] eq {yes}} {
2836                set fd [open "| git read-tree --reset -u HEAD" r]
2837                fconfigure $fd -blocking 0 -translation binary
2838                fileevent $fd readable [list reset_hard_wait $fd]
2839                set ui_status_value {Aborting... please wait...}
2840        } else {
2841                unlock_index
2842        }
2843}
2844
2845proc reset_hard_wait {fd} {
2846        global ui_comm
2847
2848        read $fd
2849        if {[eof $fd]} {
2850                close $fd
2851                unlock_index
2852
2853                $ui_comm delete 0.0 end
2854                $ui_comm edit modified false
2855
2856                catch {file delete [gitdir MERGE_HEAD]}
2857                catch {file delete [gitdir rr-cache MERGE_RR]}
2858                catch {file delete [gitdir SQUASH_MSG]}
2859                catch {file delete [gitdir MERGE_MSG]}
2860                catch {file delete [gitdir GITGUI_MSG]}
2861
2862                rescan {set ui_status_value {Abort completed.  Ready.}}
2863        }
2864}
2865
2866######################################################################
2867##
2868## icons
2869
2870set filemask {
2871#define mask_width 14
2872#define mask_height 15
2873static unsigned char mask_bits[] = {
2874   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
2875   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
2876   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
2877}
2878
2879image create bitmap file_plain -background white -foreground black -data {
2880#define plain_width 14
2881#define plain_height 15
2882static unsigned char plain_bits[] = {
2883   0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
2884   0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
2885   0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2886} -maskdata $filemask
2887
2888image create bitmap file_mod -background white -foreground blue -data {
2889#define mod_width 14
2890#define mod_height 15
2891static unsigned char mod_bits[] = {
2892   0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
2893   0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
2894   0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
2895} -maskdata $filemask
2896
2897image create bitmap file_fulltick -background white -foreground "#007000" -data {
2898#define file_fulltick_width 14
2899#define file_fulltick_height 15
2900static unsigned char file_fulltick_bits[] = {
2901   0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
2902   0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
2903   0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2904} -maskdata $filemask
2905
2906image create bitmap file_parttick -background white -foreground "#005050" -data {
2907#define parttick_width 14
2908#define parttick_height 15
2909static unsigned char parttick_bits[] = {
2910   0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
2911   0x7a, 0x14, 0x02, 0x16, 0x02, 0x13, 0x8a, 0x11, 0xda, 0x10, 0x72, 0x10,
2912   0x22, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2913} -maskdata $filemask
2914
2915image create bitmap file_question -background white -foreground black -data {
2916#define file_question_width 14
2917#define file_question_height 15
2918static unsigned char file_question_bits[] = {
2919   0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
2920   0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
2921   0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2922} -maskdata $filemask
2923
2924image create bitmap file_removed -background white -foreground red -data {
2925#define file_removed_width 14
2926#define file_removed_height 15
2927static unsigned char file_removed_bits[] = {
2928   0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
2929   0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
2930   0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
2931} -maskdata $filemask
2932
2933image create bitmap file_merge -background white -foreground blue -data {
2934#define file_merge_width 14
2935#define file_merge_height 15
2936static unsigned char file_merge_bits[] = {
2937   0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
2938   0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
2939   0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
2940} -maskdata $filemask
2941
2942set ui_index .vpane.files.index.list
2943set ui_workdir .vpane.files.workdir.list
2944
2945set all_icons(_$ui_index)   file_plain
2946set all_icons(A$ui_index)   file_fulltick
2947set all_icons(M$ui_index)   file_fulltick
2948set all_icons(D$ui_index)   file_removed
2949set all_icons(U$ui_index)   file_merge
2950
2951set all_icons(_$ui_workdir) file_plain
2952set all_icons(M$ui_workdir) file_mod
2953set all_icons(D$ui_workdir) file_question
2954set all_icons(U$ui_workdir) file_merge
2955set all_icons(O$ui_workdir) file_plain
2956
2957set max_status_desc 0
2958foreach i {
2959                {__ "Unmodified"}
2960
2961                {_M "Modified, not staged"}
2962                {M_ "Staged for commit"}
2963                {MM "Portions staged for commit"}
2964                {MD "Staged for commit, missing"}
2965
2966                {_O "Untracked, not staged"}
2967                {A_ "Staged for commit"}
2968                {AM "Portions staged for commit"}
2969                {AD "Staged for commit, missing"}
2970
2971                {_D "Missing"}
2972                {D_ "Staged for removal"}
2973                {DO "Staged for removal, still present"}
2974
2975                {U_ "Requires merge resolution"}
2976                {UU "Requires merge resolution"}
2977                {UM "Requires merge resolution"}
2978                {UD "Requires merge resolution"}
2979        } {
2980        if {$max_status_desc < [string length [lindex $i 1]]} {
2981                set max_status_desc [string length [lindex $i 1]]
2982        }
2983        set all_descs([lindex $i 0]) [lindex $i 1]
2984}
2985unset i
2986
2987######################################################################
2988##
2989## util
2990
2991proc is_MacOSX {} {
2992        global tcl_platform tk_library
2993        if {[tk windowingsystem] eq {aqua}} {
2994                return 1
2995        }
2996        return 0
2997}
2998
2999proc is_Windows {} {
3000        global tcl_platform
3001        if {$tcl_platform(platform) eq {windows}} {
3002                return 1
3003        }
3004        return 0
3005}
3006
3007proc bind_button3 {w cmd} {
3008        bind $w <Any-Button-3> $cmd
3009        if {[is_MacOSX]} {
3010                bind $w <Control-Button-1> $cmd
3011        }
3012}
3013
3014proc incr_font_size {font {amt 1}} {
3015        set sz [font configure $font -size]
3016        incr sz $amt
3017        font configure $font -size $sz
3018        font configure ${font}bold -size $sz
3019}
3020
3021proc hook_failed_popup {hook msg} {
3022        set w .hookfail
3023        toplevel $w
3024
3025        frame $w.m
3026        label $w.m.l1 -text "$hook hook failed:" \
3027                -anchor w \
3028                -justify left \
3029                -font font_uibold
3030        text $w.m.t \
3031                -background white -borderwidth 1 \
3032                -relief sunken \
3033                -width 80 -height 10 \
3034                -font font_diff \
3035                -yscrollcommand [list $w.m.sby set]
3036        label $w.m.l2 \
3037                -text {You must correct the above errors before committing.} \
3038                -anchor w \
3039                -justify left \
3040                -font font_uibold
3041        scrollbar $w.m.sby -command [list $w.m.t yview]
3042        pack $w.m.l1 -side top -fill x
3043        pack $w.m.l2 -side bottom -fill x
3044        pack $w.m.sby -side right -fill y
3045        pack $w.m.t -side left -fill both -expand 1
3046        pack $w.m -side top -fill both -expand 1 -padx 5 -pady 10
3047
3048        $w.m.t insert 1.0 $msg
3049        $w.m.t conf -state disabled
3050
3051        button $w.ok -text OK \
3052                -width 15 \
3053                -font font_ui \
3054                -command "destroy $w"
3055        pack $w.ok -side bottom -anchor e -pady 10 -padx 10
3056
3057        bind $w <Visibility> "grab $w; focus $w"
3058        bind $w <Key-Return> "destroy $w"
3059        wm title $w "[appname] ([reponame]): error"
3060        tkwait window $w
3061}
3062
3063set next_console_id 0
3064
3065proc new_console {short_title long_title} {
3066        global next_console_id console_data
3067        set w .console[incr next_console_id]
3068        set console_data($w) [list $short_title $long_title]
3069        return [console_init $w]
3070}
3071
3072proc console_init {w} {
3073        global console_cr console_data M1B
3074
3075        set console_cr($w) 1.0
3076        toplevel $w
3077        frame $w.m
3078        label $w.m.l1 -text "[lindex $console_data($w) 1]:" \
3079                -anchor w \
3080                -justify left \
3081                -font font_uibold
3082        text $w.m.t \
3083                -background white -borderwidth 1 \
3084                -relief sunken \
3085                -width 80 -height 10 \
3086                -font font_diff \
3087                -state disabled \
3088                -yscrollcommand [list $w.m.sby set]
3089        label $w.m.s -text {Working... please wait...} \
3090                -anchor w \
3091                -justify left \
3092                -font font_uibold
3093        scrollbar $w.m.sby -command [list $w.m.t yview]
3094        pack $w.m.l1 -side top -fill x
3095        pack $w.m.s -side bottom -fill x
3096        pack $w.m.sby -side right -fill y
3097        pack $w.m.t -side left -fill both -expand 1
3098        pack $w.m -side top -fill both -expand 1 -padx 5 -pady 10
3099
3100        menu $w.ctxm -tearoff 0
3101        $w.ctxm add command -label "Copy" \
3102                -font font_ui \
3103                -command "tk_textCopy $w.m.t"
3104        $w.ctxm add command -label "Select All" \
3105                -font font_ui \
3106                -command "focus $w.m.t;$w.m.t tag add sel 0.0 end"
3107        $w.ctxm add command -label "Copy All" \
3108                -font font_ui \
3109                -command "
3110                        $w.m.t tag add sel 0.0 end
3111                        tk_textCopy $w.m.t
3112                        $w.m.t tag remove sel 0.0 end
3113                "
3114
3115        button $w.ok -text {Close} \
3116                -font font_ui \
3117                -state disabled \
3118                -command "destroy $w"
3119        pack $w.ok -side bottom -anchor e -pady 10 -padx 10
3120
3121        bind_button3 $w.m.t "tk_popup $w.ctxm %X %Y"
3122        bind $w.m.t <$M1B-Key-a> "$w.m.t tag add sel 0.0 end;break"
3123        bind $w.m.t <$M1B-Key-A> "$w.m.t tag add sel 0.0 end;break"
3124        bind $w <Visibility> "focus $w"
3125        wm title $w "[appname] ([reponame]): [lindex $console_data($w) 0]"
3126        return $w
3127}
3128
3129proc console_exec {w cmd after} {
3130        # -- Windows tosses the enviroment when we exec our child.
3131        #    But most users need that so we have to relogin. :-(
3132        #
3133        if {[is_Windows]} {
3134                set cmd [list sh --login -c "cd \"[pwd]\" && [join $cmd { }]"]
3135        }
3136
3137        # -- Tcl won't let us redirect both stdout and stderr to
3138        #    the same pipe.  So pass it through cat...
3139        #
3140        set cmd [concat | $cmd |& cat]
3141
3142        set fd_f [open $cmd r]
3143        fconfigure $fd_f -blocking 0 -translation binary
3144        fileevent $fd_f readable [list console_read $w $fd_f $after]
3145}
3146
3147proc console_read {w fd after} {
3148        global console_cr
3149
3150        set buf [read $fd]
3151        if {$buf ne {}} {
3152                if {![winfo exists $w]} {console_init $w}
3153                $w.m.t conf -state normal
3154                set c 0
3155                set n [string length $buf]
3156                while {$c < $n} {
3157                        set cr [string first "\r" $buf $c]
3158                        set lf [string first "\n" $buf $c]
3159                        if {$cr < 0} {set cr [expr {$n + 1}]}
3160                        if {$lf < 0} {set lf [expr {$n + 1}]}
3161
3162                        if {$lf < $cr} {
3163                                $w.m.t insert end [string range $buf $c $lf]
3164                                set console_cr($w) [$w.m.t index {end -1c}]
3165                                set c $lf
3166                                incr c
3167                        } else {
3168                                $w.m.t delete $console_cr($w) end
3169                                $w.m.t insert end "\n"
3170                                $w.m.t insert end [string range $buf $c $cr]
3171                                set c $cr
3172                                incr c
3173                        }
3174                }
3175                $w.m.t conf -state disabled
3176                $w.m.t see end
3177        }
3178
3179        fconfigure $fd -blocking 1
3180        if {[eof $fd]} {
3181                if {[catch {close $fd}]} {
3182                        set ok 0
3183                } else {
3184                        set ok 1
3185                }
3186                uplevel #0 $after $w $ok
3187                return
3188        }
3189        fconfigure $fd -blocking 0
3190}
3191
3192proc console_chain {cmdlist w {ok 1}} {
3193        if {$ok} {
3194                if {[llength $cmdlist] == 0} {
3195                        console_done $w $ok
3196                        return
3197                }
3198
3199                set cmd [lindex $cmdlist 0]
3200                set cmdlist [lrange $cmdlist 1 end]
3201
3202                if {[lindex $cmd 0] eq {console_exec}} {
3203                        console_exec $w \
3204                                [lindex $cmd 1] \
3205                                [list console_chain $cmdlist]
3206                } else {
3207                        uplevel #0 $cmd $cmdlist $w $ok
3208                }
3209        } else {
3210                console_done $w $ok
3211        }
3212}
3213
3214proc console_done {args} {
3215        global console_cr console_data
3216
3217        switch -- [llength $args] {
3218        2 {
3219                set w [lindex $args 0]
3220                set ok [lindex $args 1]
3221        }
3222        3 {
3223                set w [lindex $args 1]
3224                set ok [lindex $args 2]
3225        }
3226        default {
3227                error "wrong number of args: console_done ?ignored? w ok"
3228        }
3229        }
3230
3231        if {$ok} {
3232                if {[winfo exists $w]} {
3233                        $w.m.s conf -background green -text {Success}
3234                        $w.ok conf -state normal
3235                }
3236        } else {
3237                if {![winfo exists $w]} {
3238                        console_init $w
3239                }
3240                $w.m.s conf -background red -text {Error: Command Failed}
3241                $w.ok conf -state normal
3242        }
3243
3244        array unset console_cr $w
3245        array unset console_data $w
3246}
3247
3248######################################################################
3249##
3250## ui commands
3251
3252set starting_gitk_msg {Starting gitk... please wait...}
3253
3254proc do_gitk {revs} {
3255        global ui_status_value starting_gitk_msg
3256
3257        set cmd gitk
3258        if {$revs ne {}} {
3259                append cmd { }
3260                append cmd $revs
3261        }
3262        if {[is_Windows]} {
3263                set cmd "sh -c \"exec $cmd\""
3264        }
3265        append cmd { &}
3266
3267        if {[catch {eval exec $cmd} err]} {
3268                error_popup "Failed to start gitk:\n\n$err"
3269        } else {
3270                set ui_status_value $starting_gitk_msg
3271                after 10000 {
3272                        if {$ui_status_value eq $starting_gitk_msg} {
3273                                set ui_status_value {Ready.}
3274                        }
3275                }
3276        }
3277}
3278
3279proc do_stats {} {
3280        set fd [open "| git count-objects -v" r]
3281        while {[gets $fd line] > 0} {
3282                if {[regexp {^([^:]+): (\d+)$} $line _ name value]} {
3283                        set stats($name) $value
3284                }
3285        }
3286        close $fd
3287
3288        set packed_sz 0
3289        foreach p [glob -directory [gitdir objects pack] \
3290                -type f \
3291                -nocomplain -- *] {
3292                incr packed_sz [file size $p]
3293        }
3294        if {$packed_sz > 0} {
3295                set stats(size-pack) [expr {$packed_sz / 1024}]
3296        }
3297
3298        set w .stats_view
3299        toplevel $w
3300        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
3301
3302        label $w.header -text {Database Statistics} \
3303                -font font_uibold
3304        pack $w.header -side top -fill x
3305
3306        frame $w.buttons -border 1
3307        button $w.buttons.close -text Close \
3308                -font font_ui \
3309                -command [list destroy $w]
3310        button $w.buttons.gc -text {Compress Database} \
3311                -font font_ui \
3312                -command "destroy $w;do_gc"
3313        pack $w.buttons.close -side right
3314        pack $w.buttons.gc -side left
3315        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
3316
3317        frame $w.stat -borderwidth 1 -relief solid
3318        foreach s {
3319                {count           {Number of loose objects}}
3320                {size            {Disk space used by loose objects} { KiB}}
3321                {in-pack         {Number of packed objects}}
3322                {packs           {Number of packs}}
3323                {size-pack       {Disk space used by packed objects} { KiB}}
3324                {prune-packable  {Packed objects waiting for pruning}}
3325                {garbage         {Garbage files}}
3326                } {
3327                set name [lindex $s 0]
3328                set label [lindex $s 1]
3329                if {[catch {set value $stats($name)}]} continue
3330                if {[llength $s] > 2} {
3331                        set value "$value[lindex $s 2]"
3332                }
3333
3334                label $w.stat.l_$name -text "$label:" -anchor w -font font_ui
3335                label $w.stat.v_$name -text $value -anchor w -font font_ui
3336                grid $w.stat.l_$name $w.stat.v_$name -sticky we -padx {0 5}
3337        }
3338        pack $w.stat -pady 10 -padx 10
3339
3340        bind $w <Visibility> "grab $w; focus $w"
3341        bind $w <Key-Escape> [list destroy $w]
3342        bind $w <Key-Return> [list destroy $w]
3343        wm title $w "[appname] ([reponame]): Database Statistics"
3344        tkwait window $w
3345}
3346
3347proc do_gc {} {
3348        set w [new_console {gc} {Compressing the object database}]
3349        console_chain {
3350                {console_exec {git pack-refs --prune}}
3351                {console_exec {git reflog expire --all}}
3352                {console_exec {git repack -a -d -l}}
3353                {console_exec {git rerere gc}}
3354        } $w
3355}
3356
3357proc do_fsck_objects {} {
3358        set w [new_console {fsck-objects} \
3359                {Verifying the object database with fsck-objects}]
3360        set cmd [list git fsck-objects]
3361        lappend cmd --full
3362        lappend cmd --cache
3363        lappend cmd --strict
3364        console_exec $w $cmd console_done
3365}
3366
3367set is_quitting 0
3368
3369proc do_quit {} {
3370        global ui_comm is_quitting repo_config commit_type
3371
3372        if {$is_quitting} return
3373        set is_quitting 1
3374
3375        # -- Stash our current commit buffer.
3376        #
3377        set save [gitdir GITGUI_MSG]
3378        set msg [string trim [$ui_comm get 0.0 end]]
3379        regsub -all -line {[ \r\t]+$} $msg {} msg
3380        if {(![string match amend* $commit_type]
3381                || [$ui_comm edit modified])
3382                && $msg ne {}} {
3383                catch {
3384                        set fd [open $save w]
3385                        puts -nonewline $fd $msg
3386                        close $fd
3387                }
3388        } else {
3389                catch {file delete $save}
3390        }
3391
3392        # -- Stash our current window geometry into this repository.
3393        #
3394        set cfg_geometry [list]
3395        lappend cfg_geometry [wm geometry .]
3396        lappend cfg_geometry [lindex [.vpane sash coord 0] 1]
3397        lappend cfg_geometry [lindex [.vpane.files sash coord 0] 0]
3398        if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
3399                set rc_geometry {}
3400        }
3401        if {$cfg_geometry ne $rc_geometry} {
3402                catch {exec git repo-config gui.geometry $cfg_geometry}
3403        }
3404
3405        destroy .
3406}
3407
3408proc do_rescan {} {
3409        rescan {set ui_status_value {Ready.}}
3410}
3411
3412proc unstage_helper {txt paths} {
3413        global file_states current_diff_path
3414
3415        if {![lock_index begin-update]} return
3416
3417        set pathList [list]
3418        set after {}
3419        foreach path $paths {
3420                switch -glob -- [lindex $file_states($path) 0] {
3421                A? -
3422                M? -
3423                D? {
3424                        lappend pathList $path
3425                        if {$path eq $current_diff_path} {
3426                                set after {reshow_diff;}
3427                        }
3428                }
3429                }
3430        }
3431        if {$pathList eq {}} {
3432                unlock_index
3433        } else {
3434                update_indexinfo \
3435                        $txt \
3436                        $pathList \
3437                        [concat $after {set ui_status_value {Ready.}}]
3438        }
3439}
3440
3441proc do_unstage_selection {} {
3442        global current_diff_path selected_paths
3443
3444        if {[array size selected_paths] > 0} {
3445                unstage_helper \
3446                        {Unstaging selected files from commit} \
3447                        [array names selected_paths]
3448        } elseif {$current_diff_path ne {}} {
3449                unstage_helper \
3450                        "Unstaging [short_path $current_diff_path] from commit" \
3451                        [list $current_diff_path]
3452        }
3453}
3454
3455proc add_helper {txt paths} {
3456        global file_states current_diff_path
3457
3458        if {![lock_index begin-update]} return
3459
3460        set pathList [list]
3461        set after {}
3462        foreach path $paths {
3463                switch -glob -- [lindex $file_states($path) 0] {
3464                _O -
3465                ?M -
3466                ?D -
3467                U? {
3468                        lappend pathList $path
3469                        if {$path eq $current_diff_path} {
3470                                set after {reshow_diff;}
3471                        }
3472                }
3473                }
3474        }
3475        if {$pathList eq {}} {
3476                unlock_index
3477        } else {
3478                update_index \
3479                        $txt \
3480                        $pathList \
3481                        [concat $after {set ui_status_value {Ready to commit.}}]
3482        }
3483}
3484
3485proc do_add_selection {} {
3486        global current_diff_path selected_paths
3487
3488        if {[array size selected_paths] > 0} {
3489                add_helper \
3490                        {Adding selected files} \
3491                        [array names selected_paths]
3492        } elseif {$current_diff_path ne {}} {
3493                add_helper \
3494                        "Adding [short_path $current_diff_path]" \
3495                        [list $current_diff_path]
3496        }
3497}
3498
3499proc do_add_all {} {
3500        global file_states
3501
3502        set paths [list]
3503        foreach path [array names file_states] {
3504                switch -glob -- [lindex $file_states($path) 0] {
3505                U? {continue}
3506                ?M -
3507                ?D {lappend paths $path}
3508                }
3509        }
3510        add_helper {Adding all changed files} $paths
3511}
3512
3513proc revert_helper {txt paths} {
3514        global file_states current_diff_path
3515
3516        if {![lock_index begin-update]} return
3517
3518        set pathList [list]
3519        set after {}
3520        foreach path $paths {
3521                switch -glob -- [lindex $file_states($path) 0] {
3522                U? {continue}
3523                ?M -
3524                ?D {
3525                        lappend pathList $path
3526                        if {$path eq $current_diff_path} {
3527                                set after {reshow_diff;}
3528                        }
3529                }
3530                }
3531        }
3532
3533        set n [llength $pathList]
3534        if {$n == 0} {
3535                unlock_index
3536                return
3537        } elseif {$n == 1} {
3538                set s "[short_path [lindex $pathList]]"
3539        } else {
3540                set s "these $n files"
3541        }
3542
3543        set reply [tk_dialog \
3544                .confirm_revert \
3545                "[appname] ([reponame])" \
3546                "Revert changes in $s?
3547
3548Any unadded changes will be permanently lost by the revert." \
3549                question \
3550                1 \
3551                {Do Nothing} \
3552                {Revert Changes} \
3553                ]
3554        if {$reply == 1} {
3555                checkout_index \
3556                        $txt \
3557                        $pathList \
3558                        [concat $after {set ui_status_value {Ready.}}]
3559        } else {
3560                unlock_index
3561        }
3562}
3563
3564proc do_revert_selection {} {
3565        global current_diff_path selected_paths
3566
3567        if {[array size selected_paths] > 0} {
3568                revert_helper \
3569                        {Reverting selected files} \
3570                        [array names selected_paths]
3571        } elseif {$current_diff_path ne {}} {
3572                revert_helper \
3573                        "Reverting [short_path $current_diff_path]" \
3574                        [list $current_diff_path]
3575        }
3576}
3577
3578proc do_signoff {} {
3579        global ui_comm
3580
3581        set me [committer_ident]
3582        if {$me eq {}} return
3583
3584        set sob "Signed-off-by: $me"
3585        set last [$ui_comm get {end -1c linestart} {end -1c}]
3586        if {$last ne $sob} {
3587                $ui_comm edit separator
3588                if {$last ne {}
3589                        && ![regexp {^[A-Z][A-Za-z]*-[A-Za-z-]+: *} $last]} {
3590                        $ui_comm insert end "\n"
3591                }
3592                $ui_comm insert end "\n$sob"
3593                $ui_comm edit separator
3594                $ui_comm see end
3595        }
3596}
3597
3598proc do_select_commit_type {} {
3599        global commit_type selected_commit_type
3600
3601        if {$selected_commit_type eq {new}
3602                && [string match amend* $commit_type]} {
3603                create_new_commit
3604        } elseif {$selected_commit_type eq {amend}
3605                && ![string match amend* $commit_type]} {
3606                load_last_commit
3607
3608                # The amend request was rejected...
3609                #
3610                if {![string match amend* $commit_type]} {
3611                        set selected_commit_type new
3612                }
3613        }
3614}
3615
3616proc do_commit {} {
3617        commit_tree
3618}
3619
3620proc do_about {} {
3621        global appvers copyright
3622        global tcl_patchLevel tk_patchLevel
3623
3624        set w .about_dialog
3625        toplevel $w
3626        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
3627
3628        label $w.header -text "About [appname]" \
3629                -font font_uibold
3630        pack $w.header -side top -fill x
3631
3632        frame $w.buttons
3633        button $w.buttons.close -text {Close} \
3634                -font font_ui \
3635                -command [list destroy $w]
3636        pack $w.buttons.close -side right
3637        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
3638
3639        label $w.desc \
3640                -text "[appname] - a commit creation tool for Git.
3641$copyright" \
3642                -padx 5 -pady 5 \
3643                -justify left \
3644                -anchor w \
3645                -borderwidth 1 \
3646                -relief solid \
3647                -font font_ui
3648        pack $w.desc -side top -fill x -padx 5 -pady 5
3649
3650        set v {}
3651        append v "[appname] version $appvers\n"
3652        append v "[exec git version]\n"
3653        append v "\n"
3654        if {$tcl_patchLevel eq $tk_patchLevel} {
3655                append v "Tcl/Tk version $tcl_patchLevel"
3656        } else {
3657                append v "Tcl version $tcl_patchLevel"
3658                append v ", Tk version $tk_patchLevel"
3659        }
3660
3661        label $w.vers \
3662                -text $v \
3663                -padx 5 -pady 5 \
3664                -justify left \
3665                -anchor w \
3666                -borderwidth 1 \
3667                -relief solid \
3668                -font font_ui
3669        pack $w.vers -side top -fill x -padx 5 -pady 5
3670
3671        menu $w.ctxm -tearoff 0
3672        $w.ctxm add command \
3673                -label {Copy} \
3674                -font font_ui \
3675                -command "
3676                clipboard clear
3677                clipboard append -format STRING -type STRING -- \[$w.vers cget -text\]
3678        "
3679
3680        bind $w <Visibility> "grab $w; focus $w"
3681        bind $w <Key-Escape> "destroy $w"
3682        bind_button3 $w.vers "tk_popup $w.ctxm %X %Y; grab $w; focus $w"
3683        wm title $w "About [appname]"
3684        tkwait window $w
3685}
3686
3687proc do_options {} {
3688        global repo_config global_config font_descs
3689        global repo_config_new global_config_new
3690
3691        array unset repo_config_new
3692        array unset global_config_new
3693        foreach name [array names repo_config] {
3694                set repo_config_new($name) $repo_config($name)
3695        }
3696        load_config 1
3697        foreach name [array names repo_config] {
3698                switch -- $name {
3699                gui.diffcontext {continue}
3700                }
3701                set repo_config_new($name) $repo_config($name)
3702        }
3703        foreach name [array names global_config] {
3704                set global_config_new($name) $global_config($name)
3705        }
3706
3707        set w .options_editor
3708        toplevel $w
3709        wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
3710
3711        label $w.header -text "[appname] Options" \
3712                -font font_uibold
3713        pack $w.header -side top -fill x
3714
3715        frame $w.buttons
3716        button $w.buttons.restore -text {Restore Defaults} \
3717                -font font_ui \
3718                -command do_restore_defaults
3719        pack $w.buttons.restore -side left
3720        button $w.buttons.save -text Save \
3721                -font font_ui \
3722                -command [list do_save_config $w]
3723        pack $w.buttons.save -side right
3724        button $w.buttons.cancel -text {Cancel} \
3725                -font font_ui \
3726                -command [list destroy $w]
3727        pack $w.buttons.cancel -side right -padx 5
3728        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
3729
3730        labelframe $w.repo -text "[reponame] Repository" \
3731                -font font_ui
3732        labelframe $w.global -text {Global (All Repositories)} \
3733                -font font_ui
3734        pack $w.repo -side left -fill both -expand 1 -pady 5 -padx 5
3735        pack $w.global -side right -fill both -expand 1 -pady 5 -padx 5
3736
3737        foreach option {
3738                {b pullsummary {Show Pull Summary}}
3739                {b trustmtime  {Trust File Modification Timestamps}}
3740                {i diffcontext {Number of Diff Context Lines}}
3741                {t newbranchtemplate {New Branch Name Template}}
3742                } {
3743                set type [lindex $option 0]
3744                set name [lindex $option 1]
3745                set text [lindex $option 2]
3746                foreach f {repo global} {
3747                        switch $type {
3748                        b {
3749                                checkbutton $w.$f.$name -text $text \
3750                                        -variable ${f}_config_new(gui.$name) \
3751                                        -onvalue true \
3752                                        -offvalue false \
3753                                        -font font_ui
3754                                pack $w.$f.$name -side top -anchor w
3755                        }
3756                        i {
3757                                frame $w.$f.$name
3758                                label $w.$f.$name.l -text "$text:" -font font_ui
3759                                pack $w.$f.$name.l -side left -anchor w -fill x
3760                                spinbox $w.$f.$name.v \
3761                                        -textvariable ${f}_config_new(gui.$name) \
3762                                        -from 1 -to 99 -increment 1 \
3763                                        -width 3 \
3764                                        -font font_ui
3765                                bind $w.$f.$name.v <FocusIn> {%W selection range 0 end}
3766                                pack $w.$f.$name.v -side right -anchor e -padx 5
3767                                pack $w.$f.$name -side top -anchor w -fill x
3768                        }
3769                        t {
3770                                frame $w.$f.$name
3771                                label $w.$f.$name.l -text "$text:" -font font_ui
3772                                entry $w.$f.$name.v \
3773                                        -borderwidth 1 \
3774                                        -relief sunken \
3775                                        -width 20 \
3776                                        -textvariable ${f}_config_new(gui.$name) \
3777                                        -font font_ui
3778                                pack $w.$f.$name.l -side left -anchor w
3779                                pack $w.$f.$name.v -side left -anchor w \
3780                                        -fill x -expand 1 \
3781                                        -padx 5
3782                                pack $w.$f.$name -side top -anchor w -fill x
3783                        }
3784                        }
3785                }
3786        }
3787
3788        set all_fonts [lsort [font families]]
3789        foreach option $font_descs {
3790                set name [lindex $option 0]
3791                set font [lindex $option 1]
3792                set text [lindex $option 2]
3793
3794                set global_config_new(gui.$font^^family) \
3795                        [font configure $font -family]
3796                set global_config_new(gui.$font^^size) \
3797                        [font configure $font -size]
3798
3799                frame $w.global.$name
3800                label $w.global.$name.l -text "$text:" -font font_ui
3801                pack $w.global.$name.l -side left -anchor w -fill x
3802                eval tk_optionMenu $w.global.$name.family \
3803                        global_config_new(gui.$font^^family) \
3804                        $all_fonts
3805                spinbox $w.global.$name.size \
3806                        -textvariable global_config_new(gui.$font^^size) \
3807                        -from 2 -to 80 -increment 1 \
3808                        -width 3 \
3809                        -font font_ui
3810                bind $w.global.$name.size <FocusIn> {%W selection range 0 end}
3811                pack $w.global.$name.size -side right -anchor e
3812                pack $w.global.$name.family -side right -anchor e
3813                pack $w.global.$name -side top -anchor w -fill x
3814        }
3815
3816        bind $w <Visibility> "grab $w; focus $w"
3817        bind $w <Key-Escape> "destroy $w"
3818        wm title $w "[appname] ([reponame]): Options"
3819        tkwait window $w
3820}
3821
3822proc do_restore_defaults {} {
3823        global font_descs default_config repo_config
3824        global repo_config_new global_config_new
3825
3826        foreach name [array names default_config] {
3827                set repo_config_new($name) $default_config($name)
3828                set global_config_new($name) $default_config($name)
3829        }
3830
3831        foreach option $font_descs {
3832                set name [lindex $option 0]
3833                set repo_config(gui.$name) $default_config(gui.$name)
3834        }
3835        apply_config
3836
3837        foreach option $font_descs {
3838                set name [lindex $option 0]
3839                set font [lindex $option 1]
3840                set global_config_new(gui.$font^^family) \
3841                        [font configure $font -family]
3842                set global_config_new(gui.$font^^size) \
3843                        [font configure $font -size]
3844        }
3845}
3846
3847proc do_save_config {w} {
3848        if {[catch {save_config} err]} {
3849                error_popup "Failed to completely save options:\n\n$err"
3850        }
3851        reshow_diff
3852        destroy $w
3853}
3854
3855proc do_windows_shortcut {} {
3856        global argv0
3857
3858        if {[catch {
3859                set desktop [exec cygpath \
3860                        --windows \
3861                        --absolute \
3862                        --long-name \
3863                        --desktop]
3864                }]} {
3865                        set desktop .
3866        }
3867        set fn [tk_getSaveFile \
3868                -parent . \
3869                -title "[appname] ([reponame]): Create Desktop Icon" \
3870                -initialdir $desktop \
3871                -initialfile "Git [reponame].bat"]
3872        if {$fn != {}} {
3873                if {[catch {
3874                                set fd [open $fn w]
3875                                set sh [exec cygpath \
3876                                        --windows \
3877                                        --absolute \
3878                                        /bin/sh]
3879                                set me [exec cygpath \
3880                                        --unix \
3881                                        --absolute \
3882                                        $argv0]
3883                                set gd [exec cygpath \
3884                                        --unix \
3885                                        --absolute \
3886                                        [gitdir]]
3887                                set gw [exec cygpath \
3888                                        --windows \
3889                                        --absolute \
3890                                        [file dirname [gitdir]]]
3891                                regsub -all ' $me "'\\''" me
3892                                regsub -all ' $gd "'\\''" gd
3893                                puts $fd "@ECHO Entering $gw"
3894                                puts $fd "@ECHO Starting git-gui... please wait..."
3895                                puts -nonewline $fd "@\"$sh\" --login -c \""
3896                                puts -nonewline $fd "GIT_DIR='$gd'"
3897                                puts -nonewline $fd " '$me'"
3898                                puts $fd "&\""
3899                                close $fd
3900                        } err]} {
3901                        error_popup "Cannot write script:\n\n$err"
3902                }
3903        }
3904}
3905
3906proc do_macosx_app {} {
3907        global argv0 env
3908
3909        set fn [tk_getSaveFile \
3910                -parent . \
3911                -title "[appname] ([reponame]): Create Desktop Icon" \
3912                -initialdir [file join $env(HOME) Desktop] \
3913                -initialfile "Git [reponame].app"]
3914        if {$fn != {}} {
3915                if {[catch {
3916                                set Contents [file join $fn Contents]
3917                                set MacOS [file join $Contents MacOS]
3918                                set exe [file join $MacOS git-gui]
3919
3920                                file mkdir $MacOS
3921
3922                                set fd [open [file join $Contents Info.plist] w]
3923                                puts $fd {<?xml version="1.0" encoding="UTF-8"?>
3924<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3925<plist version="1.0">
3926<dict>
3927        <key>CFBundleDevelopmentRegion</key>
3928        <string>English</string>
3929        <key>CFBundleExecutable</key>
3930        <string>git-gui</string>
3931        <key>CFBundleIdentifier</key>
3932        <string>org.spearce.git-gui</string>
3933        <key>CFBundleInfoDictionaryVersion</key>
3934        <string>6.0</string>
3935        <key>CFBundlePackageType</key>
3936        <string>APPL</string>
3937        <key>CFBundleSignature</key>
3938        <string>????</string>
3939        <key>CFBundleVersion</key>
3940        <string>1.0</string>
3941        <key>NSPrincipalClass</key>
3942        <string>NSApplication</string>
3943</dict>
3944</plist>}
3945                                close $fd
3946
3947                                set fd [open $exe w]
3948                                set gd [file normalize [gitdir]]
3949                                set ep [file normalize [exec git --exec-path]]
3950                                regsub -all ' $gd "'\\''" gd
3951                                regsub -all ' $ep "'\\''" ep
3952                                puts $fd "#!/bin/sh"
3953                                foreach name [array names env] {
3954                                        if {[string match GIT_* $name]} {
3955                                                regsub -all ' $env($name) "'\\''" v
3956                                                puts $fd "export $name='$v'"
3957                                        }
3958                                }
3959                                puts $fd "export PATH='$ep':\$PATH"
3960                                puts $fd "export GIT_DIR='$gd'"
3961                                puts $fd "exec [file normalize $argv0]"
3962                                close $fd
3963
3964                                file attributes $exe -permissions u+x,g+x,o+x
3965                        } err]} {
3966                        error_popup "Cannot write icon:\n\n$err"
3967                }
3968        }
3969}
3970
3971proc toggle_or_diff {w x y} {
3972        global file_states file_lists current_diff_path ui_index ui_workdir
3973        global last_clicked selected_paths
3974
3975        set pos [split [$w index @$x,$y] .]
3976        set lno [lindex $pos 0]
3977        set col [lindex $pos 1]
3978        set path [lindex $file_lists($w) [expr {$lno - 1}]]
3979        if {$path eq {}} {
3980                set last_clicked {}
3981                return
3982        }
3983
3984        set last_clicked [list $w $lno]
3985        array unset selected_paths
3986        $ui_index tag remove in_sel 0.0 end
3987        $ui_workdir tag remove in_sel 0.0 end
3988
3989        if {$col == 0} {
3990                if {$current_diff_path eq $path} {
3991                        set after {reshow_diff;}
3992                } else {
3993                        set after {}
3994                }
3995                if {$w eq $ui_index} {
3996                        update_indexinfo \
3997                                "Unstaging [short_path $path] from commit" \
3998                                [list $path] \
3999                                [concat $after {set ui_status_value {Ready.}}]
4000                } elseif {$w eq $ui_workdir} {
4001                        update_index \
4002                                "Adding [short_path $path]" \
4003                                [list $path] \
4004                                [concat $after {set ui_status_value {Ready.}}]
4005                }
4006        } else {
4007                show_diff $path $w $lno
4008        }
4009}
4010
4011proc add_one_to_selection {w x y} {
4012        global file_lists last_clicked selected_paths
4013
4014        set lno [lindex [split [$w index @$x,$y] .] 0]
4015        set path [lindex $file_lists($w) [expr {$lno - 1}]]
4016        if {$path eq {}} {
4017                set last_clicked {}
4018                return
4019        }
4020
4021        if {$last_clicked ne {}
4022                && [lindex $last_clicked 0] ne $w} {
4023                array unset selected_paths
4024                [lindex $last_clicked 0] tag remove in_sel 0.0 end
4025        }
4026
4027        set last_clicked [list $w $lno]
4028        if {[catch {set in_sel $selected_paths($path)}]} {
4029                set in_sel 0
4030        }
4031        if {$in_sel} {
4032                unset selected_paths($path)
4033                $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
4034        } else {
4035                set selected_paths($path) 1
4036                $w tag add in_sel $lno.0 [expr {$lno + 1}].0
4037        }
4038}
4039
4040proc add_range_to_selection {w x y} {
4041        global file_lists last_clicked selected_paths
4042
4043        if {[lindex $last_clicked 0] ne $w} {
4044                toggle_or_diff $w $x $y
4045                return
4046        }
4047
4048        set lno [lindex [split [$w index @$x,$y] .] 0]
4049        set lc [lindex $last_clicked 1]
4050        if {$lc < $lno} {
4051                set begin $lc
4052                set end $lno
4053        } else {
4054                set begin $lno
4055                set end $lc
4056        }
4057
4058        foreach path [lrange $file_lists($w) \
4059                [expr {$begin - 1}] \
4060                [expr {$end - 1}]] {
4061                set selected_paths($path) 1
4062        }
4063        $w tag add in_sel $begin.0 [expr {$end + 1}].0
4064}
4065
4066######################################################################
4067##
4068## config defaults
4069
4070set cursor_ptr arrow
4071font create font_diff -family Courier -size 10
4072font create font_ui
4073catch {
4074        label .dummy
4075        eval font configure font_ui [font actual [.dummy cget -font]]
4076        destroy .dummy
4077}
4078
4079font create font_uibold
4080font create font_diffbold
4081
4082if {[is_Windows]} {
4083        set M1B Control
4084        set M1T Ctrl
4085} elseif {[is_MacOSX]} {
4086        set M1B M1
4087        set M1T Cmd
4088} else {
4089        set M1B M1
4090        set M1T M1
4091}
4092
4093proc apply_config {} {
4094        global repo_config font_descs
4095
4096        foreach option $font_descs {
4097                set name [lindex $option 0]
4098                set font [lindex $option 1]
4099                if {[catch {
4100                        foreach {cn cv} $repo_config(gui.$name) {
4101                                font configure $font $cn $cv
4102                        }
4103                        } err]} {
4104                        error_popup "Invalid font specified in gui.$name:\n\n$err"
4105                }
4106                foreach {cn cv} [font configure $font] {
4107                        font configure ${font}bold $cn $cv
4108                }
4109                font configure ${font}bold -weight bold
4110        }
4111}
4112
4113set default_config(gui.trustmtime) false
4114set default_config(gui.pullsummary) true
4115set default_config(gui.diffcontext) 5
4116set default_config(gui.newbranchtemplate) {}
4117set default_config(gui.fontui) [font configure font_ui]
4118set default_config(gui.fontdiff) [font configure font_diff]
4119set font_descs {
4120        {fontui   font_ui   {Main Font}}
4121        {fontdiff font_diff {Diff/Console Font}}
4122}
4123load_config 0
4124apply_config
4125
4126######################################################################
4127##
4128## ui construction
4129
4130# -- Menu Bar
4131#
4132menu .mbar -tearoff 0
4133.mbar add cascade -label Repository -menu .mbar.repository
4134.mbar add cascade -label Edit -menu .mbar.edit
4135if {!$single_commit} {
4136        .mbar add cascade -label Branch -menu .mbar.branch
4137}
4138.mbar add cascade -label Commit -menu .mbar.commit
4139if {!$single_commit} {
4140        .mbar add cascade -label Merge -menu .mbar.merge
4141        .mbar add cascade -label Fetch -menu .mbar.fetch
4142        .mbar add cascade -label Push -menu .mbar.push
4143}
4144. configure -menu .mbar
4145
4146# -- Repository Menu
4147#
4148menu .mbar.repository
4149.mbar.repository add command \
4150        -label {Visualize Current Branch} \
4151        -command {do_gitk {}} \
4152        -font font_ui
4153.mbar.repository add command \
4154        -label {Visualize All Branches} \
4155        -command {do_gitk {--all}} \
4156        -font font_ui
4157.mbar.repository add separator
4158
4159if {!$single_commit} {
4160        .mbar.repository add command -label {Database Statistics} \
4161                -command do_stats \
4162                -font font_ui
4163
4164        .mbar.repository add command -label {Compress Database} \
4165                -command do_gc \
4166                -font font_ui
4167
4168        .mbar.repository add command -label {Verify Database} \
4169                -command do_fsck_objects \
4170                -font font_ui
4171
4172        .mbar.repository add separator
4173
4174        if {[is_Windows]} {
4175                .mbar.repository add command \
4176                        -label {Create Desktop Icon} \
4177                        -command do_windows_shortcut \
4178                        -font font_ui
4179        } elseif {[is_MacOSX]} {
4180                .mbar.repository add command \
4181                        -label {Create Desktop Icon} \
4182                        -command do_macosx_app \
4183                        -font font_ui
4184        }
4185}
4186
4187.mbar.repository add command -label Quit \
4188        -command do_quit \
4189        -accelerator $M1T-Q \
4190        -font font_ui
4191
4192# -- Edit Menu
4193#
4194menu .mbar.edit
4195.mbar.edit add command -label Undo \
4196        -command {catch {[focus] edit undo}} \
4197        -accelerator $M1T-Z \
4198        -font font_ui
4199.mbar.edit add command -label Redo \
4200        -command {catch {[focus] edit redo}} \
4201        -accelerator $M1T-Y \
4202        -font font_ui
4203.mbar.edit add separator
4204.mbar.edit add command -label Cut \
4205        -command {catch {tk_textCut [focus]}} \
4206        -accelerator $M1T-X \
4207        -font font_ui
4208.mbar.edit add command -label Copy \
4209        -command {catch {tk_textCopy [focus]}} \
4210        -accelerator $M1T-C \
4211        -font font_ui
4212.mbar.edit add command -label Paste \
4213        -command {catch {tk_textPaste [focus]; [focus] see insert}} \
4214        -accelerator $M1T-V \
4215        -font font_ui
4216.mbar.edit add command -label Delete \
4217        -command {catch {[focus] delete sel.first sel.last}} \
4218        -accelerator Del \
4219        -font font_ui
4220.mbar.edit add separator
4221.mbar.edit add command -label {Select All} \
4222        -command {catch {[focus] tag add sel 0.0 end}} \
4223        -accelerator $M1T-A \
4224        -font font_ui
4225
4226# -- Branch Menu
4227#
4228if {!$single_commit} {
4229        menu .mbar.branch
4230
4231        .mbar.branch add command -label {Create...} \
4232                -command do_create_branch \
4233                -accelerator $M1T-N \
4234                -font font_ui
4235        lappend disable_on_lock [list .mbar.branch entryconf \
4236                [.mbar.branch index last] -state]
4237
4238        .mbar.branch add command -label {Delete...} \
4239                -command do_delete_branch \
4240                -font font_ui
4241        lappend disable_on_lock [list .mbar.branch entryconf \
4242                [.mbar.branch index last] -state]
4243}
4244
4245# -- Commit Menu
4246#
4247menu .mbar.commit
4248
4249.mbar.commit add radiobutton \
4250        -label {New Commit} \
4251        -command do_select_commit_type \
4252        -variable selected_commit_type \
4253        -value new \
4254        -font font_ui
4255lappend disable_on_lock \
4256        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4257
4258.mbar.commit add radiobutton \
4259        -label {Amend Last Commit} \
4260        -command do_select_commit_type \
4261        -variable selected_commit_type \
4262        -value amend \
4263        -font font_ui
4264lappend disable_on_lock \
4265        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4266
4267.mbar.commit add separator
4268
4269.mbar.commit add command -label Rescan \
4270        -command do_rescan \
4271        -accelerator F5 \
4272        -font font_ui
4273lappend disable_on_lock \
4274        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4275
4276.mbar.commit add command -label {Add To Commit} \
4277        -command do_add_selection \
4278        -font font_ui
4279lappend disable_on_lock \
4280        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4281
4282.mbar.commit add command -label {Add All To Commit} \
4283        -command do_add_all \
4284        -accelerator $M1T-I \
4285        -font font_ui
4286lappend disable_on_lock \
4287        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4288
4289.mbar.commit add command -label {Unstage From Commit} \
4290        -command do_unstage_selection \
4291        -font font_ui
4292lappend disable_on_lock \
4293        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4294
4295.mbar.commit add command -label {Revert Changes} \
4296        -command do_revert_selection \
4297        -font font_ui
4298lappend disable_on_lock \
4299        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4300
4301.mbar.commit add separator
4302
4303.mbar.commit add command -label {Sign Off} \
4304        -command do_signoff \
4305        -accelerator $M1T-S \
4306        -font font_ui
4307
4308.mbar.commit add command -label Commit \
4309        -command do_commit \
4310        -accelerator $M1T-Return \
4311        -font font_ui
4312lappend disable_on_lock \
4313        [list .mbar.commit entryconf [.mbar.commit index last] -state]
4314
4315if {[is_MacOSX]} {
4316        # -- Apple Menu (Mac OS X only)
4317        #
4318        .mbar add cascade -label Apple -menu .mbar.apple
4319        menu .mbar.apple
4320
4321        .mbar.apple add command -label "About [appname]" \
4322                -command do_about \
4323                -font font_ui
4324        .mbar.apple add command -label "[appname] Options..." \
4325                -command do_options \
4326                -font font_ui
4327} else {
4328        # -- Edit Menu
4329        #
4330        .mbar.edit add separator
4331        .mbar.edit add command -label {Options...} \
4332                -command do_options \
4333                -font font_ui
4334
4335        # -- Tools Menu
4336        #
4337        if {[file exists /usr/local/miga/lib/gui-miga]
4338                && [file exists .pvcsrc]} {
4339        proc do_miga {} {
4340                global ui_status_value
4341                if {![lock_index update]} return
4342                set cmd [list sh --login -c "/usr/local/miga/lib/gui-miga \"[pwd]\""]
4343                set miga_fd [open "|$cmd" r]
4344                fconfigure $miga_fd -blocking 0
4345                fileevent $miga_fd readable [list miga_done $miga_fd]
4346                set ui_status_value {Running miga...}
4347        }
4348        proc miga_done {fd} {
4349                read $fd 512
4350                if {[eof $fd]} {
4351                        close $fd
4352                        unlock_index
4353                        rescan [list set ui_status_value {Ready.}]
4354                }
4355        }
4356        .mbar add cascade -label Tools -menu .mbar.tools
4357        menu .mbar.tools
4358        .mbar.tools add command -label "Migrate" \
4359                -command do_miga \
4360                -font font_ui
4361        lappend disable_on_lock \
4362                [list .mbar.tools entryconf [.mbar.tools index last] -state]
4363        }
4364
4365        # -- Help Menu
4366        #
4367        .mbar add cascade -label Help -menu .mbar.help
4368        menu .mbar.help
4369
4370        .mbar.help add command -label "About [appname]" \
4371                -command do_about \
4372                -font font_ui
4373}
4374
4375
4376# -- Branch Control
4377#
4378frame .branch \
4379        -borderwidth 1 \
4380        -relief sunken
4381label .branch.l1 \
4382        -text {Current Branch:} \
4383        -anchor w \
4384        -justify left \
4385        -font font_ui
4386label .branch.cb \
4387        -textvariable current_branch \
4388        -anchor w \
4389        -justify left \
4390        -font font_ui
4391pack .branch.l1 -side left
4392pack .branch.cb -side left -fill x
4393pack .branch -side top -fill x
4394
4395if {!$single_commit} {
4396        menu .mbar.merge
4397        .mbar.merge add command -label {Local Merge...} \
4398                -command do_local_merge \
4399                -font font_ui
4400        lappend disable_on_lock \
4401                [list .mbar.merge entryconf [.mbar.merge index last] -state]
4402        .mbar.merge add command -label {Abort Merge...} \
4403                -command do_reset_hard \
4404                -font font_ui
4405        lappend disable_on_lock \
4406                [list .mbar.merge entryconf [.mbar.merge index last] -state]
4407
4408
4409        menu .mbar.fetch
4410
4411        menu .mbar.push
4412        .mbar.push add command -label {Push...} \
4413                -command do_push_anywhere \
4414                -font font_ui
4415}
4416
4417# -- Main Window Layout
4418#
4419panedwindow .vpane -orient vertical
4420panedwindow .vpane.files -orient horizontal
4421.vpane add .vpane.files -sticky nsew -height 100 -width 200
4422pack .vpane -anchor n -side top -fill both -expand 1
4423
4424# -- Index File List
4425#
4426frame .vpane.files.index -height 100 -width 200
4427label .vpane.files.index.title -text {Changes To Be Committed} \
4428        -background green \
4429        -font font_ui
4430text $ui_index -background white -borderwidth 0 \
4431        -width 20 -height 10 \
4432        -wrap none \
4433        -font font_ui \
4434        -cursor $cursor_ptr \
4435        -xscrollcommand {.vpane.files.index.sx set} \
4436        -yscrollcommand {.vpane.files.index.sy set} \
4437        -state disabled
4438scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
4439scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
4440pack .vpane.files.index.title -side top -fill x
4441pack .vpane.files.index.sx -side bottom -fill x
4442pack .vpane.files.index.sy -side right -fill y
4443pack $ui_index -side left -fill both -expand 1
4444.vpane.files add .vpane.files.index -sticky nsew
4445
4446# -- Working Directory File List
4447#
4448frame .vpane.files.workdir -height 100 -width 200
4449label .vpane.files.workdir.title -text {Changed But Not Updated} \
4450        -background red \
4451        -font font_ui
4452text $ui_workdir -background white -borderwidth 0 \
4453        -width 20 -height 10 \
4454        -wrap none \
4455        -font font_ui \
4456        -cursor $cursor_ptr \
4457        -xscrollcommand {.vpane.files.workdir.sx set} \
4458        -yscrollcommand {.vpane.files.workdir.sy set} \
4459        -state disabled
4460scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
4461scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
4462pack .vpane.files.workdir.title -side top -fill x
4463pack .vpane.files.workdir.sx -side bottom -fill x
4464pack .vpane.files.workdir.sy -side right -fill y
4465pack $ui_workdir -side left -fill both -expand 1
4466.vpane.files add .vpane.files.workdir -sticky nsew
4467
4468foreach i [list $ui_index $ui_workdir] {
4469        $i tag conf in_diff -font font_uibold
4470        $i tag conf in_sel \
4471                -background [$i cget -foreground] \
4472                -foreground [$i cget -background]
4473}
4474unset i
4475
4476# -- Diff and Commit Area
4477#
4478frame .vpane.lower -height 300 -width 400
4479frame .vpane.lower.commarea
4480frame .vpane.lower.diff -relief sunken -borderwidth 1
4481pack .vpane.lower.commarea -side top -fill x
4482pack .vpane.lower.diff -side bottom -fill both -expand 1
4483.vpane add .vpane.lower -sticky nsew
4484
4485# -- Commit Area Buttons
4486#
4487frame .vpane.lower.commarea.buttons
4488label .vpane.lower.commarea.buttons.l -text {} \
4489        -anchor w \
4490        -justify left \
4491        -font font_ui
4492pack .vpane.lower.commarea.buttons.l -side top -fill x
4493pack .vpane.lower.commarea.buttons -side left -fill y
4494
4495button .vpane.lower.commarea.buttons.rescan -text {Rescan} \
4496        -command do_rescan \
4497        -font font_ui
4498pack .vpane.lower.commarea.buttons.rescan -side top -fill x
4499lappend disable_on_lock \
4500        {.vpane.lower.commarea.buttons.rescan conf -state}
4501
4502button .vpane.lower.commarea.buttons.incall -text {Add All} \
4503        -command do_add_all \
4504        -font font_ui
4505pack .vpane.lower.commarea.buttons.incall -side top -fill x
4506lappend disable_on_lock \
4507        {.vpane.lower.commarea.buttons.incall conf -state}
4508
4509button .vpane.lower.commarea.buttons.signoff -text {Sign Off} \
4510        -command do_signoff \
4511        -font font_ui
4512pack .vpane.lower.commarea.buttons.signoff -side top -fill x
4513
4514button .vpane.lower.commarea.buttons.commit -text {Commit} \
4515        -command do_commit \
4516        -font font_ui
4517pack .vpane.lower.commarea.buttons.commit -side top -fill x
4518lappend disable_on_lock \
4519        {.vpane.lower.commarea.buttons.commit conf -state}
4520
4521# -- Commit Message Buffer
4522#
4523frame .vpane.lower.commarea.buffer
4524frame .vpane.lower.commarea.buffer.header
4525set ui_comm .vpane.lower.commarea.buffer.t
4526set ui_coml .vpane.lower.commarea.buffer.header.l
4527radiobutton .vpane.lower.commarea.buffer.header.new \
4528        -text {New Commit} \
4529        -command do_select_commit_type \
4530        -variable selected_commit_type \
4531        -value new \
4532        -font font_ui
4533lappend disable_on_lock \
4534        [list .vpane.lower.commarea.buffer.header.new conf -state]
4535radiobutton .vpane.lower.commarea.buffer.header.amend \
4536        -text {Amend Last Commit} \
4537        -command do_select_commit_type \
4538        -variable selected_commit_type \
4539        -value amend \
4540        -font font_ui
4541lappend disable_on_lock \
4542        [list .vpane.lower.commarea.buffer.header.amend conf -state]
4543label $ui_coml \
4544        -anchor w \
4545        -justify left \
4546        -font font_ui
4547proc trace_commit_type {varname args} {
4548        global ui_coml commit_type
4549        switch -glob -- $commit_type {
4550        initial       {set txt {Initial Commit Message:}}
4551        amend         {set txt {Amended Commit Message:}}
4552        amend-initial {set txt {Amended Initial Commit Message:}}
4553        amend-merge   {set txt {Amended Merge Commit Message:}}
4554        merge         {set txt {Merge Commit Message:}}
4555        *             {set txt {Commit Message:}}
4556        }
4557        $ui_coml conf -text $txt
4558}
4559trace add variable commit_type write trace_commit_type
4560pack $ui_coml -side left -fill x
4561pack .vpane.lower.commarea.buffer.header.amend -side right
4562pack .vpane.lower.commarea.buffer.header.new -side right
4563
4564text $ui_comm -background white -borderwidth 1 \
4565        -undo true \
4566        -maxundo 20 \
4567        -autoseparators true \
4568        -relief sunken \
4569        -width 75 -height 9 -wrap none \
4570        -font font_diff \
4571        -yscrollcommand {.vpane.lower.commarea.buffer.sby set}
4572scrollbar .vpane.lower.commarea.buffer.sby \
4573        -command [list $ui_comm yview]
4574pack .vpane.lower.commarea.buffer.header -side top -fill x
4575pack .vpane.lower.commarea.buffer.sby -side right -fill y
4576pack $ui_comm -side left -fill y
4577pack .vpane.lower.commarea.buffer -side left -fill y
4578
4579# -- Commit Message Buffer Context Menu
4580#
4581set ctxm .vpane.lower.commarea.buffer.ctxm
4582menu $ctxm -tearoff 0
4583$ctxm add command \
4584        -label {Cut} \
4585        -font font_ui \
4586        -command {tk_textCut $ui_comm}
4587$ctxm add command \
4588        -label {Copy} \
4589        -font font_ui \
4590        -command {tk_textCopy $ui_comm}
4591$ctxm add command \
4592        -label {Paste} \
4593        -font font_ui \
4594        -command {tk_textPaste $ui_comm}
4595$ctxm add command \
4596        -label {Delete} \
4597        -font font_ui \
4598        -command {$ui_comm delete sel.first sel.last}
4599$ctxm add separator
4600$ctxm add command \
4601        -label {Select All} \
4602        -font font_ui \
4603        -command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
4604$ctxm add command \
4605        -label {Copy All} \
4606        -font font_ui \
4607        -command {
4608                $ui_comm tag add sel 0.0 end
4609                tk_textCopy $ui_comm
4610                $ui_comm tag remove sel 0.0 end
4611        }
4612$ctxm add separator
4613$ctxm add command \
4614        -label {Sign Off} \
4615        -font font_ui \
4616        -command do_signoff
4617bind_button3 $ui_comm "tk_popup $ctxm %X %Y"
4618
4619# -- Diff Header
4620#
4621set current_diff_path {}
4622set current_diff_side {}
4623set diff_actions [list]
4624proc trace_current_diff_path {varname args} {
4625        global current_diff_path diff_actions file_states
4626        if {$current_diff_path eq {}} {
4627                set s {}
4628                set f {}
4629                set p {}
4630                set o disabled
4631        } else {
4632                set p $current_diff_path
4633                set s [mapdesc [lindex $file_states($p) 0] $p]
4634                set f {File:}
4635                set p [escape_path $p]
4636                set o normal
4637        }
4638
4639        .vpane.lower.diff.header.status configure -text $s
4640        .vpane.lower.diff.header.file configure -text $f
4641        .vpane.lower.diff.header.path configure -text $p
4642        foreach w $diff_actions {
4643                uplevel #0 $w $o
4644        }
4645}
4646trace add variable current_diff_path write trace_current_diff_path
4647
4648frame .vpane.lower.diff.header -background orange
4649label .vpane.lower.diff.header.status \
4650        -background orange \
4651        -width $max_status_desc \
4652        -anchor w \
4653        -justify left \
4654        -font font_ui
4655label .vpane.lower.diff.header.file \
4656        -background orange \
4657        -anchor w \
4658        -justify left \
4659        -font font_ui
4660label .vpane.lower.diff.header.path \
4661        -background orange \
4662        -anchor w \
4663        -justify left \
4664        -font font_ui
4665pack .vpane.lower.diff.header.status -side left
4666pack .vpane.lower.diff.header.file -side left
4667pack .vpane.lower.diff.header.path -fill x
4668set ctxm .vpane.lower.diff.header.ctxm
4669menu $ctxm -tearoff 0
4670$ctxm add command \
4671        -label {Copy} \
4672        -font font_ui \
4673        -command {
4674                clipboard clear
4675                clipboard append \
4676                        -format STRING \
4677                        -type STRING \
4678                        -- $current_diff_path
4679        }
4680lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4681bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"
4682
4683# -- Diff Body
4684#
4685frame .vpane.lower.diff.body
4686set ui_diff .vpane.lower.diff.body.t
4687text $ui_diff -background white -borderwidth 0 \
4688        -width 80 -height 15 -wrap none \
4689        -font font_diff \
4690        -xscrollcommand {.vpane.lower.diff.body.sbx set} \
4691        -yscrollcommand {.vpane.lower.diff.body.sby set} \
4692        -state disabled
4693scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
4694        -command [list $ui_diff xview]
4695scrollbar .vpane.lower.diff.body.sby -orient vertical \
4696        -command [list $ui_diff yview]
4697pack .vpane.lower.diff.body.sbx -side bottom -fill x
4698pack .vpane.lower.diff.body.sby -side right -fill y
4699pack $ui_diff -side left -fill both -expand 1
4700pack .vpane.lower.diff.header -side top -fill x
4701pack .vpane.lower.diff.body -side bottom -fill both -expand 1
4702
4703$ui_diff tag conf d_cr -elide true
4704$ui_diff tag conf d_@ -foreground blue -font font_diffbold
4705$ui_diff tag conf d_+ -foreground {#00a000}
4706$ui_diff tag conf d_- -foreground red
4707
4708$ui_diff tag conf d_++ -foreground {#00a000}
4709$ui_diff tag conf d_-- -foreground red
4710$ui_diff tag conf d_+s \
4711        -foreground {#00a000} \
4712        -background {#e2effa}
4713$ui_diff tag conf d_-s \
4714        -foreground red \
4715        -background {#e2effa}
4716$ui_diff tag conf d_s+ \
4717        -foreground {#00a000} \
4718        -background ivory1
4719$ui_diff tag conf d_s- \
4720        -foreground red \
4721        -background ivory1
4722
4723$ui_diff tag conf d<<<<<<< \
4724        -foreground orange \
4725        -font font_diffbold
4726$ui_diff tag conf d======= \
4727        -foreground orange \
4728        -font font_diffbold
4729$ui_diff tag conf d>>>>>>> \
4730        -foreground orange \
4731        -font font_diffbold
4732
4733$ui_diff tag raise sel
4734
4735# -- Diff Body Context Menu
4736#
4737set ctxm .vpane.lower.diff.body.ctxm
4738menu $ctxm -tearoff 0
4739$ctxm add command \
4740        -label {Refresh} \
4741        -font font_ui \
4742        -command reshow_diff
4743lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4744$ctxm add command \
4745        -label {Copy} \
4746        -font font_ui \
4747        -command {tk_textCopy $ui_diff}
4748lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4749$ctxm add command \
4750        -label {Select All} \
4751        -font font_ui \
4752        -command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
4753lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4754$ctxm add command \
4755        -label {Copy All} \
4756        -font font_ui \
4757        -command {
4758                $ui_diff tag add sel 0.0 end
4759                tk_textCopy $ui_diff
4760                $ui_diff tag remove sel 0.0 end
4761        }
4762lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4763$ctxm add separator
4764$ctxm add command \
4765        -label {Apply/Reverse Hunk} \
4766        -font font_ui \
4767        -command {apply_hunk $cursorX $cursorY}
4768set ui_diff_applyhunk [$ctxm index last]
4769lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
4770$ctxm add separator
4771$ctxm add command \
4772        -label {Decrease Font Size} \
4773        -font font_ui \
4774        -command {incr_font_size font_diff -1}
4775lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4776$ctxm add command \
4777        -label {Increase Font Size} \
4778        -font font_ui \
4779        -command {incr_font_size font_diff 1}
4780lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4781$ctxm add separator
4782$ctxm add command \
4783        -label {Show Less Context} \
4784        -font font_ui \
4785        -command {if {$repo_config(gui.diffcontext) >= 2} {
4786                incr repo_config(gui.diffcontext) -1
4787                reshow_diff
4788        }}
4789lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4790$ctxm add command \
4791        -label {Show More Context} \
4792        -font font_ui \
4793        -command {
4794                incr repo_config(gui.diffcontext)
4795                reshow_diff
4796        }
4797lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4798$ctxm add separator
4799$ctxm add command -label {Options...} \
4800        -font font_ui \
4801        -command do_options
4802bind_button3 $ui_diff "
4803        set cursorX %x
4804        set cursorY %y
4805        if {\$ui_index eq \$current_diff_side} {
4806                $ctxm entryconf $ui_diff_applyhunk -label {Unstage Hunk From Commit}
4807        } else {
4808                $ctxm entryconf $ui_diff_applyhunk -label {Stage Hunk For Commit}
4809        }
4810        tk_popup $ctxm %X %Y
4811"
4812unset ui_diff_applyhunk
4813
4814# -- Status Bar
4815#
4816set ui_status_value {Initializing...}
4817label .status -textvariable ui_status_value \
4818        -anchor w \
4819        -justify left \
4820        -borderwidth 1 \
4821        -relief sunken \
4822        -font font_ui
4823pack .status -anchor w -side bottom -fill x
4824
4825# -- Load geometry
4826#
4827catch {
4828set gm $repo_config(gui.geometry)
4829wm geometry . [lindex $gm 0]
4830.vpane sash place 0 \
4831        [lindex [.vpane sash coord 0] 0] \
4832        [lindex $gm 1]
4833.vpane.files sash place 0 \
4834        [lindex $gm 2] \
4835        [lindex [.vpane.files sash coord 0] 1]
4836unset gm
4837}
4838
4839# -- Key Bindings
4840#
4841bind $ui_comm <$M1B-Key-Return> {do_commit;break}
4842bind $ui_comm <$M1B-Key-i> {do_add_all;break}
4843bind $ui_comm <$M1B-Key-I> {do_add_all;break}
4844bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
4845bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
4846bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
4847bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
4848bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
4849bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
4850bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
4851bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
4852
4853bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
4854bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
4855bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
4856bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
4857bind $ui_diff <$M1B-Key-v> {break}
4858bind $ui_diff <$M1B-Key-V> {break}
4859bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
4860bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
4861bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
4862bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
4863bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
4864bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
4865bind $ui_diff <Button-1>   {focus %W}
4866
4867if {!$single_commit} {
4868        bind . <$M1B-Key-n> do_create_branch
4869        bind . <$M1B-Key-N> do_create_branch
4870}
4871
4872bind .   <Destroy> do_quit
4873bind all <Key-F5> do_rescan
4874bind all <$M1B-Key-r> do_rescan
4875bind all <$M1B-Key-R> do_rescan
4876bind .   <$M1B-Key-s> do_signoff
4877bind .   <$M1B-Key-S> do_signoff
4878bind .   <$M1B-Key-i> do_add_all
4879bind .   <$M1B-Key-I> do_add_all
4880bind .   <$M1B-Key-Return> do_commit
4881bind all <$M1B-Key-q> do_quit
4882bind all <$M1B-Key-Q> do_quit
4883bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
4884bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
4885foreach i [list $ui_index $ui_workdir] {
4886        bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
4887        bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
4888        bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
4889}
4890unset i
4891
4892set file_lists($ui_index) [list]
4893set file_lists($ui_workdir) [list]
4894
4895set HEAD {}
4896set PARENT {}
4897set MERGE_HEAD [list]
4898set commit_type {}
4899set empty_tree {}
4900set current_branch {}
4901set current_diff_path {}
4902set selected_commit_type new
4903
4904wm title . "[appname] ([file normalize [file dirname [gitdir]]])"
4905focus -force $ui_comm
4906
4907# -- Warn the user about environmental problems.  Cygwin's Tcl
4908#    does *not* pass its env array onto any processes it spawns.
4909#    This means that git processes get none of our environment.
4910#
4911if {[is_Windows]} {
4912        set ignored_env 0
4913        set suggest_user {}
4914        set msg "Possible environment issues exist.
4915
4916The following environment variables are probably
4917going to be ignored by any Git subprocess run
4918by [appname]:
4919
4920"
4921        foreach name [array names env] {
4922                switch -regexp -- $name {
4923                {^GIT_INDEX_FILE$} -
4924                {^GIT_OBJECT_DIRECTORY$} -
4925                {^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
4926                {^GIT_DIFF_OPTS$} -
4927                {^GIT_EXTERNAL_DIFF$} -
4928                {^GIT_PAGER$} -
4929                {^GIT_TRACE$} -
4930                {^GIT_CONFIG$} -
4931                {^GIT_CONFIG_LOCAL$} -
4932                {^GIT_(AUTHOR|COMMITTER)_DATE$} {
4933                        append msg " - $name\n"
4934                        incr ignored_env
4935                }
4936                {^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
4937                        append msg " - $name\n"
4938                        incr ignored_env
4939                        set suggest_user $name
4940                }
4941                }
4942        }
4943        if {$ignored_env > 0} {
4944                append msg "
4945This is due to a known issue with the
4946Tcl binary distributed by Cygwin."
4947
4948                if {$suggest_user ne {}} {
4949                        append msg "
4950
4951A good replacement for $suggest_user
4952is placing values for the user.name and
4953user.email settings into your personal
4954~/.gitconfig file.
4955"
4956                }
4957                warn_popup $msg
4958        }
4959        unset ignored_env msg suggest_user name
4960}
4961
4962# -- Only initialize complex UI if we are going to stay running.
4963#
4964if {!$single_commit} {
4965        load_all_remotes
4966        load_all_heads
4967
4968        populate_branch_menu
4969        populate_fetch_menu
4970        populate_push_menu
4971}
4972
4973# -- Only suggest a gc run if we are going to stay running.
4974#
4975if {!$single_commit} {
4976        set object_limit 2000
4977        if {[is_Windows]} {set object_limit 200}
4978        regexp {^([0-9]+) objects,} [exec git count-objects] _junk objects_current
4979        if {$objects_current >= $object_limit} {
4980                if {[ask_popup \
4981                        "This repository currently has $objects_current loose objects.
4982
4983To maintain optimal performance it is strongly
4984recommended that you compress the database
4985when more than $object_limit loose objects exist.
4986
4987Compress the database now?"] eq yes} {
4988                        do_gc
4989                }
4990        }
4991        unset object_limit _junk objects_current
4992}
4993
4994lock_index begin-read
4995after 1 do_rescan