Andrew's git - gitweb.git/blob - git-gui/git-gui.sh

   1#!/bin/sh
   2# Tcl ignores the next line -*- tcl -*- \
   3 if test "z$*" = zversion \
   4 || test "z$*" = z--version; \
   5 then \
   6        echo 'git-gui version @@GITGUI_VERSION@@'; \
   7        exit; \
   8 fi; \
   9 argv0=$0; \
  10 exec wish "$argv0" -- "$@"
  11
  12set appvers {@@GITGUI_VERSION@@}
  13set copyright [encoding convertfrom utf-8 {
  14Copyright © 2006, 2007 Shawn Pearce, et. al.
  15
  16This program is free software; you can redistribute it and/or modify
  17it under the terms of the GNU General Public License as published by
  18the Free Software Foundation; either version 2 of the License, or
  19(at your option) any later version.
  20
  21This program is distributed in the hope that it will be useful,
  22but WITHOUT ANY WARRANTY; without even the implied warranty of
  23MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24GNU General Public License for more details.
  25
  26You should have received a copy of the GNU General Public License
  27along with this program; if not, write to the Free Software
  28Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA}]
  29
  30######################################################################
  31##
  32## Tcl/Tk sanity check
  33
  34if {[catch {package require Tcl 8.4} err]
  35 || [catch {package require Tk  8.4} err]
  36} {
  37        catch {wm withdraw .}
  38        tk_messageBox \
  39                -icon error \
  40                -type ok \
  41                -title [mc "git-gui: fatal error"] \
  42                -message $err
  43        exit 1
  44}
  45
  46catch {rename send {}} ; # What an evil concept...
  47
  48######################################################################
  49##
  50## locate our library
  51
  52set oguilib {@@GITGUI_LIBDIR@@}
  53set oguirel {@@GITGUI_RELATIVE@@}
  54if {$oguirel eq {1}} {
  55        set oguilib [file dirname [file dirname [file normalize $argv0]]]
  56        set oguilib [file join $oguilib share git-gui lib]
  57        set oguimsg [file join $oguilib msgs]
  58} elseif {[string match @@* $oguirel]} {
  59        set oguilib [file join [file dirname [file normalize $argv0]] lib]
  60        set oguimsg [file join [file dirname [file normalize $argv0]] po]
  61} else {
  62        set oguimsg [file join $oguilib msgs]
  63}
  64unset oguirel
  65
  66######################################################################
  67##
  68## enable verbose loading?
  69
  70if {![catch {set _verbose $env(GITGUI_VERBOSE)}]} {
  71        unset _verbose
  72        rename auto_load real__auto_load
  73        proc auto_load {name args} {
  74                puts stderr "auto_load $name"
  75                return [uplevel 1 real__auto_load $name $args]
  76        }
  77        rename source real__source
  78        proc source {name} {
  79                puts stderr "source    $name"
  80                uplevel 1 real__source $name
  81        }
  82}
  83
  84######################################################################
  85##
  86## Internationalization (i18n) through msgcat and gettext. See
  87## http://www.gnu.org/software/gettext/manual/html_node/Tcl.html
  88
  89package require msgcat
  90
  91proc _mc_trim {fmt} {
  92        set cmk [string first @@ $fmt]
  93        if {$cmk > 0} {
  94                return [string range $fmt 0 [expr {$cmk - 1}]]
  95        }
  96        return $fmt
  97}
  98
  99proc mc {en_fmt args} {
 100        set fmt [_mc_trim [::msgcat::mc $en_fmt]]
 101        if {[catch {set msg [eval [list format $fmt] $args]} err]} {
 102                set msg [eval [list format [_mc_trim $en_fmt]] $args]
 103        }
 104        return $msg
 105}
 106
 107proc strcat {args} {
 108        return [join $args {}]
 109}
 110
 111::msgcat::mcload $oguimsg
 112unset oguimsg
 113
 114######################################################################
 115##
 116## read only globals
 117
 118set _appname {Git Gui}
 119set _gitdir {}
 120set _gitexec {}
 121set _reponame {}
 122set _iscygwin {}
 123set _search_path {}
 124
 125proc appname {} {
 126        global _appname
 127        return $_appname
 128}
 129
 130proc gitdir {args} {
 131        global _gitdir
 132        if {$args eq {}} {
 133                return $_gitdir
 134        }
 135        return [eval [list file join $_gitdir] $args]
 136}
 137
 138proc gitexec {args} {
 139        global _gitexec
 140        if {$_gitexec eq {}} {
 141                if {[catch {set _gitexec [git --exec-path]} err]} {
 142                        error "Git not installed?\n\n$err"
 143                }
 144                if {[is_Cygwin]} {
 145                        set _gitexec [exec cygpath \
 146                                --windows \
 147                                --absolute \
 148                                $_gitexec]
 149                } else {
 150                        set _gitexec [file normalize $_gitexec]
 151                }
 152        }
 153        if {$args eq {}} {
 154                return $_gitexec
 155        }
 156        return [eval [list file join $_gitexec] $args]
 157}
 158
 159proc reponame {} {
 160        return $::_reponame
 161}
 162
 163proc is_MacOSX {} {
 164        if {[tk windowingsystem] eq {aqua}} {
 165                return 1
 166        }
 167        return 0
 168}
 169
 170proc is_Windows {} {
 171        if {$::tcl_platform(platform) eq {windows}} {
 172                return 1
 173        }
 174        return 0
 175}
 176
 177proc is_Cygwin {} {
 178        global _iscygwin
 179        if {$_iscygwin eq {}} {
 180                if {$::tcl_platform(platform) eq {windows}} {
 181                        if {[catch {set p [exec cygpath --windir]} err]} {
 182                                set _iscygwin 0
 183                        } else {
 184                                set _iscygwin 1
 185                        }
 186                } else {
 187                        set _iscygwin 0
 188                }
 189        }
 190        return $_iscygwin
 191}
 192
 193proc is_enabled {option} {
 194        global enabled_options
 195        if {[catch {set on $enabled_options($option)}]} {return 0}
 196        return $on
 197}
 198
 199proc enable_option {option} {
 200        global enabled_options
 201        set enabled_options($option) 1
 202}
 203
 204proc disable_option {option} {
 205        global enabled_options
 206        set enabled_options($option) 0
 207}
 208
 209######################################################################
 210##
 211## config
 212
 213proc is_many_config {name} {
 214        switch -glob -- $name {
 215        gui.recentrepo -
 216        remote.*.fetch -
 217        remote.*.push
 218                {return 1}
 219        *
 220                {return 0}
 221        }
 222}
 223
 224proc is_config_true {name} {
 225        global repo_config
 226        if {[catch {set v $repo_config($name)}]} {
 227                return 0
 228        } elseif {$v eq {true} || $v eq {1} || $v eq {yes}} {
 229                return 1
 230        } else {
 231                return 0
 232        }
 233}
 234
 235proc get_config {name} {
 236        global repo_config
 237        if {[catch {set v $repo_config($name)}]} {
 238                return {}
 239        } else {
 240                return $v
 241        }
 242}
 243
 244######################################################################
 245##
 246## handy utils
 247
 248proc _git_cmd {name} {
 249        global _git_cmd_path
 250
 251        if {[catch {set v $_git_cmd_path($name)}]} {
 252                switch -- $name {
 253                  version   -
 254                --version   -
 255                --exec-path { return [list $::_git $name] }
 256                }
 257
 258                set p [gitexec git-$name$::_search_exe]
 259                if {[file exists $p]} {
 260                        set v [list $p]
 261                } elseif {[is_Windows] && [file exists [gitexec git-$name]]} {
 262                        # Try to determine what sort of magic will make
 263                        # git-$name go and do its thing, because native
 264                        # Tcl on Windows doesn't know it.
 265                        #
 266                        set p [gitexec git-$name]
 267                        set f [open $p r]
 268                        set s [gets $f]
 269                        close $f
 270
 271                        switch -glob -- [lindex $s 0] {
 272                        #!*sh     { set i sh     }
 273                        #!*perl   { set i perl   }
 274                        #!*python { set i python }
 275                        default   { error "git-$name is not supported: $s" }
 276                        }
 277
 278                        upvar #0 _$i interp
 279                        if {![info exists interp]} {
 280                                set interp [_which $i]
 281                        }
 282                        if {$interp eq {}} {
 283                                error "git-$name requires $i (not in PATH)"
 284                        }
 285                        set v [concat [list $interp] [lrange $s 1 end] [list $p]]
 286                } else {
 287                        # Assume it is builtin to git somehow and we
 288                        # aren't actually able to see a file for it.
 289                        #
 290                        set v [list $::_git $name]
 291                }
 292                set _git_cmd_path($name) $v
 293        }
 294        return $v
 295}
 296
 297proc _which {what} {
 298        global env _search_exe _search_path
 299
 300        if {$_search_path eq {}} {
 301                if {[is_Cygwin] && [regexp {^(/|\.:)} $env(PATH)]} {
 302                        set _search_path [split [exec cygpath \
 303                                --windows \
 304                                --path \
 305                                --absolute \
 306                                $env(PATH)] {;}]
 307                        set _search_exe .exe
 308                } elseif {[is_Windows]} {
 309                        set gitguidir [file dirname [info script]]
 310                        regsub -all ";" $gitguidir "\\;" gitguidir
 311                        set env(PATH) "$gitguidir;$env(PATH)"
 312                        set _search_path [split $env(PATH) {;}]
 313                        set _search_exe .exe
 314                } else {
 315                        set _search_path [split $env(PATH) :]
 316                        set _search_exe {}
 317                }
 318        }
 319
 320        foreach p $_search_path {
 321                set p [file join $p $what$_search_exe]
 322                if {[file exists $p]} {
 323                        return [file normalize $p]
 324                }
 325        }
 326        return {}
 327}
 328
 329proc _lappend_nice {cmd_var} {
 330        global _nice
 331        upvar $cmd_var cmd
 332
 333        if {![info exists _nice]} {
 334                set _nice [_which nice]
 335        }
 336        if {$_nice ne {}} {
 337                lappend cmd $_nice
 338        }
 339}
 340
 341proc git {args} {
 342        set opt [list exec]
 343
 344        while {1} {
 345                switch -- [lindex $args 0] {
 346                --nice {
 347                        _lappend_nice opt
 348                }
 349
 350                default {
 351                        break
 352                }
 353
 354                }
 355
 356                set args [lrange $args 1 end]
 357        }
 358
 359        set cmdp [_git_cmd [lindex $args 0]]
 360        set args [lrange $args 1 end]
 361
 362        return [eval $opt $cmdp $args]
 363}
 364
 365proc _open_stdout_stderr {cmd} {
 366        if {[catch {
 367                        set fd [open $cmd r]
 368                } err]} {
 369                if {   [lindex $cmd end] eq {2>@1}
 370                    && $err eq {can not find channel named "1"}
 371                        } {
 372                        # Older versions of Tcl 8.4 don't have this 2>@1 IO
 373                        # redirect operator.  Fallback to |& cat for those.
 374                        # The command was not actually started, so its safe
 375                        # to try to start it a second time.
 376                        #
 377                        set fd [open [concat \
 378                                [lrange $cmd 0 end-1] \
 379                                [list |& cat] \
 380                                ] r]
 381                } else {
 382                        error $err
 383                }
 384        }
 385        fconfigure $fd -eofchar {}
 386        return $fd
 387}
 388
 389proc git_read {args} {
 390        set opt [list |]
 391
 392        while {1} {
 393                switch -- [lindex $args 0] {
 394                --nice {
 395                        _lappend_nice opt
 396                }
 397
 398                --stderr {
 399                        lappend args 2>@1
 400                }
 401
 402                default {
 403                        break
 404                }
 405
 406                }
 407
 408                set args [lrange $args 1 end]
 409        }
 410
 411        set cmdp [_git_cmd [lindex $args 0]]
 412        set args [lrange $args 1 end]
 413
 414        return [_open_stdout_stderr [concat $opt $cmdp $args]]
 415}
 416
 417proc git_write {args} {
 418        set opt [list |]
 419
 420        while {1} {
 421                switch -- [lindex $args 0] {
 422                --nice {
 423                        _lappend_nice opt
 424                }
 425
 426                default {
 427                        break
 428                }
 429
 430                }
 431
 432                set args [lrange $args 1 end]
 433        }
 434
 435        set cmdp [_git_cmd [lindex $args 0]]
 436        set args [lrange $args 1 end]
 437
 438        return [open [concat $opt $cmdp $args] w]
 439}
 440
 441proc githook_read {hook_name args} {
 442        set pchook [gitdir hooks $hook_name]
 443        lappend args 2>@1
 444
 445        # On Cygwin [file executable] might lie so we need to ask
 446        # the shell if the hook is executable.  Yes that's annoying.
 447        #
 448        if {[is_Cygwin]} {
 449                upvar #0 _sh interp
 450                if {![info exists interp]} {
 451                        set interp [_which sh]
 452                }
 453                if {$interp eq {}} {
 454                        error "hook execution requires sh (not in PATH)"
 455                }
 456
 457                set scr {if test -x "$1";then exec "$@";fi}
 458                set sh_c [list | $interp -c $scr $interp $pchook]
 459                return [_open_stdout_stderr [concat $sh_c $args]]
 460        }
 461
 462        if {[file executable $pchook]} {
 463                return [_open_stdout_stderr [concat [list | $pchook] $args]]
 464        }
 465
 466        return {}
 467}
 468
 469proc sq {value} {
 470        regsub -all ' $value "'\\''" value
 471        return "'$value'"
 472}
 473
 474proc load_current_branch {} {
 475        global current_branch is_detached
 476
 477        set fd [open [gitdir HEAD] r]
 478        if {[gets $fd ref] < 1} {
 479                set ref {}
 480        }
 481        close $fd
 482
 483        set pfx {ref: refs/heads/}
 484        set len [string length $pfx]
 485        if {[string equal -length $len $pfx $ref]} {
 486                # We're on a branch.  It might not exist.  But
 487                # HEAD looks good enough to be a branch.
 488                #
 489                set current_branch [string range $ref $len end]
 490                set is_detached 0
 491        } else {
 492                # Assume this is a detached head.
 493                #
 494                set current_branch HEAD
 495                set is_detached 1
 496        }
 497}
 498
 499auto_load tk_optionMenu
 500rename tk_optionMenu real__tkOptionMenu
 501proc tk_optionMenu {w varName args} {
 502        set m [eval real__tkOptionMenu $w $varName $args]
 503        $m configure -font font_ui
 504        $w configure -font font_ui
 505        return $m
 506}
 507
 508proc rmsel_tag {text} {
 509        $text tag conf sel \
 510                -background [$text cget -background] \
 511                -foreground [$text cget -foreground] \
 512                -borderwidth 0
 513        $text tag conf in_sel -background lightgray
 514        bind $text <Motion> break
 515        return $text
 516}
 517
 518set root_exists 0
 519bind . <Visibility> {
 520        bind . <Visibility> {}
 521        set root_exists 1
 522}
 523
 524if {[is_Windows]} {
 525        wm iconbitmap . -default $oguilib/git-gui.ico
 526}
 527
 528######################################################################
 529##
 530## config defaults
 531
 532set cursor_ptr arrow
 533font create font_diff -family Courier -size 10
 534font create font_ui
 535catch {
 536        label .dummy
 537        eval font configure font_ui [font actual [.dummy cget -font]]
 538        destroy .dummy
 539}
 540
 541font create font_uiitalic
 542font create font_uibold
 543font create font_diffbold
 544font create font_diffitalic
 545
 546foreach class {Button Checkbutton Entry Label
 547                Labelframe Listbox Menu Message
 548                Radiobutton Spinbox Text} {
 549        option add *$class.font font_ui
 550}
 551unset class
 552
 553if {[is_Windows] || [is_MacOSX]} {
 554        option add *Menu.tearOff 0
 555}
 556
 557if {[is_MacOSX]} {
 558        set M1B M1
 559        set M1T Cmd
 560} else {
 561        set M1B Control
 562        set M1T Ctrl
 563}
 564
 565proc bind_button3 {w cmd} {
 566        bind $w <Any-Button-3> $cmd
 567        if {[is_MacOSX]} {
 568                # Mac OS X sends Button-2 on right click through three-button mouse,
 569                # or through trackpad right-clicking (two-finger touch + click).
 570                bind $w <Any-Button-2> $cmd
 571                bind $w <Control-Button-1> $cmd
 572        }
 573}
 574
 575proc apply_config {} {
 576        global repo_config font_descs
 577
 578        foreach option $font_descs {
 579                set name [lindex $option 0]
 580                set font [lindex $option 1]
 581                if {[catch {
 582                        set need_weight 1
 583                        foreach {cn cv} $repo_config(gui.$name) {
 584                                if {$cn eq {-weight}} {
 585                                        set need_weight 0
 586                                }
 587                                font configure $font $cn $cv
 588                        }
 589                        if {$need_weight} {
 590                                font configure $font -weight normal
 591                        }
 592                        } err]} {
 593                        error_popup [strcat [mc "Invalid font specified in %s:" "gui.$name"] "\n\n$err"]
 594                }
 595                foreach {cn cv} [font configure $font] {
 596                        font configure ${font}bold $cn $cv
 597                        font configure ${font}italic $cn $cv
 598                }
 599                font configure ${font}bold -weight bold
 600                font configure ${font}italic -slant italic
 601        }
 602}
 603
 604set default_config(merge.diffstat) true
 605set default_config(merge.summary) false
 606set default_config(merge.verbosity) 2
 607set default_config(user.name) {}
 608set default_config(user.email) {}
 609
 610set default_config(gui.matchtrackingbranch) false
 611set default_config(gui.pruneduringfetch) false
 612set default_config(gui.trustmtime) false
 613set default_config(gui.diffcontext) 5
 614set default_config(gui.commitmsgwidth) 75
 615set default_config(gui.newbranchtemplate) {}
 616set default_config(gui.spellingdictionary) {}
 617set default_config(gui.fontui) [font configure font_ui]
 618set default_config(gui.fontdiff) [font configure font_diff]
 619set font_descs {
 620        {fontui   font_ui   {mc "Main Font"}}
 621        {fontdiff font_diff {mc "Diff/Console Font"}}
 622}
 623
 624######################################################################
 625##
 626## find git
 627
 628set _git  [_which git]
 629if {$_git eq {}} {
 630        catch {wm withdraw .}
 631        tk_messageBox \
 632                -icon error \
 633                -type ok \
 634                -title [mc "git-gui: fatal error"] \
 635                -message [mc "Cannot find git in PATH."]
 636        exit 1
 637}
 638
 639######################################################################
 640##
 641## version check
 642
 643if {[catch {set _git_version [git --version]} err]} {
 644        catch {wm withdraw .}
 645        tk_messageBox \
 646                -icon error \
 647                -type ok \
 648                -title [mc "git-gui: fatal error"] \
 649                -message "Cannot determine Git version:
 650
 651$err
 652
 653[appname] requires Git 1.5.0 or later."
 654        exit 1
 655}
 656if {![regsub {^git version } $_git_version {} _git_version]} {
 657        catch {wm withdraw .}
 658        tk_messageBox \
 659                -icon error \
 660                -type ok \
 661                -title [mc "git-gui: fatal error"] \
 662                -message [strcat [mc "Cannot parse Git version string:"] "\n\n$_git_version"]
 663        exit 1
 664}
 665
 666set _real_git_version $_git_version
 667regsub -- {[\-\.]dirty$} $_git_version {} _git_version
 668regsub {\.[0-9]+\.g[0-9a-f]+$} $_git_version {} _git_version
 669regsub {\.rc[0-9]+$} $_git_version {} _git_version
 670regsub {\.GIT$} $_git_version {} _git_version
 671regsub {\.[a-zA-Z]+\.[0-9]+$} $_git_version {} _git_version
 672
 673if {![regexp {^[1-9]+(\.[0-9]+)+$} $_git_version]} {
 674        catch {wm withdraw .}
 675        if {[tk_messageBox \
 676                -icon warning \
 677                -type yesno \
 678                -default no \
 679                -title "[appname]: warning" \
 680                 -message [mc "Git version cannot be determined.
 681
 682%s claims it is version '%s'.
 683
 684%s requires at least Git 1.5.0 or later.
 685
 686Assume '%s' is version 1.5.0?
 687" $_git $_real_git_version [appname] $_real_git_version]] eq {yes}} {
 688                set _git_version 1.5.0
 689        } else {
 690                exit 1
 691        }
 692}
 693unset _real_git_version
 694
 695proc git-version {args} {
 696        global _git_version
 697
 698        switch [llength $args] {
 699        0 {
 700                return $_git_version
 701        }
 702
 703        2 {
 704                set op [lindex $args 0]
 705                set vr [lindex $args 1]
 706                set cm [package vcompare $_git_version $vr]
 707                return [expr $cm $op 0]
 708        }
 709
 710        4 {
 711                set type [lindex $args 0]
 712                set name [lindex $args 1]
 713                set parm [lindex $args 2]
 714                set body [lindex $args 3]
 715
 716                if {($type ne {proc} && $type ne {method})} {
 717                        error "Invalid arguments to git-version"
 718                }
 719                if {[llength $body] < 2 || [lindex $body end-1] ne {default}} {
 720                        error "Last arm of $type $name must be default"
 721                }
 722
 723                foreach {op vr cb} [lrange $body 0 end-2] {
 724                        if {[git-version $op $vr]} {
 725                                return [uplevel [list $type $name $parm $cb]]
 726                        }
 727                }
 728
 729                return [uplevel [list $type $name $parm [lindex $body end]]]
 730        }
 731
 732        default {
 733                error "git-version >= x"
 734        }
 735
 736        }
 737}
 738
 739if {[git-version < 1.5]} {
 740        catch {wm withdraw .}
 741        tk_messageBox \
 742                -icon error \
 743                -type ok \
 744                -title [mc "git-gui: fatal error"] \
 745                -message "[appname] requires Git 1.5.0 or later.
 746
 747You are using [git-version]:
 748
 749[git --version]"
 750        exit 1
 751}
 752
 753######################################################################
 754##
 755## configure our library
 756
 757set idx [file join $oguilib tclIndex]
 758if {[catch {set fd [open $idx r]} err]} {
 759        catch {wm withdraw .}
 760        tk_messageBox \
 761                -icon error \
 762                -type ok \
 763                -title [mc "git-gui: fatal error"] \
 764                -message $err
 765        exit 1
 766}
 767if {[gets $fd] eq {# Autogenerated by git-gui Makefile}} {
 768        set idx [list]
 769        while {[gets $fd n] >= 0} {
 770                if {$n ne {} && ![string match #* $n]} {
 771                        lappend idx $n
 772                }
 773        }
 774} else {
 775        set idx {}
 776}
 777close $fd
 778
 779if {$idx ne {}} {
 780        set loaded [list]
 781        foreach p $idx {
 782                if {[lsearch -exact $loaded $p] >= 0} continue
 783                source [file join $oguilib $p]
 784                lappend loaded $p
 785        }
 786        unset loaded p
 787} else {
 788        set auto_path [concat [list $oguilib] $auto_path]
 789}
 790unset -nocomplain idx fd
 791
 792######################################################################
 793##
 794## config file parsing
 795
 796git-version proc _parse_config {arr_name args} {
 797        >= 1.5.3 {
 798                upvar $arr_name arr
 799                array unset arr
 800                set buf {}
 801                catch {
 802                        set fd_rc [eval \
 803                                [list git_read config] \
 804                                $args \
 805                                [list --null --list]]
 806                        fconfigure $fd_rc -translation binary
 807                        set buf [read $fd_rc]
 808                        close $fd_rc
 809                }
 810                foreach line [split $buf "\0"] {
 811                        if {[regexp {^([^\n]+)\n(.*)$} $line line name value]} {
 812                                if {[is_many_config $name]} {
 813                                        lappend arr($name) $value
 814                                } else {
 815                                        set arr($name) $value
 816                                }
 817                        }
 818                }
 819        }
 820        default {
 821                upvar $arr_name arr
 822                array unset arr
 823                catch {
 824                        set fd_rc [eval [list git_read config --list] $args]
 825                        while {[gets $fd_rc line] >= 0} {
 826                                if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
 827                                        if {[is_many_config $name]} {
 828                                                lappend arr($name) $value
 829                                        } else {
 830                                                set arr($name) $value
 831                                        }
 832                                }
 833                        }
 834                        close $fd_rc
 835                }
 836        }
 837}
 838
 839proc load_config {include_global} {
 840        global repo_config global_config default_config
 841
 842        if {$include_global} {
 843                _parse_config global_config --global
 844        }
 845        _parse_config repo_config
 846
 847        foreach name [array names default_config] {
 848                if {[catch {set v $global_config($name)}]} {
 849                        set global_config($name) $default_config($name)
 850                }
 851                if {[catch {set v $repo_config($name)}]} {
 852                        set repo_config($name) $default_config($name)
 853                }
 854        }
 855}
 856
 857######################################################################
 858##
 859## feature option selection
 860
 861if {[regexp {^git-(.+)$} [file tail $argv0] _junk subcommand]} {
 862        unset _junk
 863} else {
 864        set subcommand gui
 865}
 866if {$subcommand eq {gui.sh}} {
 867        set subcommand gui
 868}
 869if {$subcommand eq {gui} && [llength $argv] > 0} {
 870        set subcommand [lindex $argv 0]
 871        set argv [lrange $argv 1 end]
 872}
 873
 874enable_option multicommit
 875enable_option branch
 876enable_option transport
 877disable_option bare
 878
 879switch -- $subcommand {
 880browser -
 881blame {
 882        enable_option bare
 883
 884        disable_option multicommit
 885        disable_option branch
 886        disable_option transport
 887}
 888citool {
 889        enable_option singlecommit
 890
 891        disable_option multicommit
 892        disable_option branch
 893        disable_option transport
 894}
 895}
 896
 897######################################################################
 898##
 899## repository setup
 900
 901if {[catch {
 902                set _gitdir $env(GIT_DIR)
 903                set _prefix {}
 904                }]
 905        && [catch {
 906                set _gitdir [git rev-parse --git-dir]
 907                set _prefix [git rev-parse --show-prefix]
 908        } err]} {
 909        load_config 1
 910        apply_config
 911        choose_repository::pick
 912}
 913if {![file isdirectory $_gitdir] && [is_Cygwin]} {
 914        catch {set _gitdir [exec cygpath --windows $_gitdir]}
 915}
 916if {![file isdirectory $_gitdir]} {
 917        catch {wm withdraw .}
 918        error_popup [strcat [mc "Git directory not found:"] "\n\n$_gitdir"]
 919        exit 1
 920}
 921if {$_prefix ne {}} {
 922        regsub -all {[^/]+/} $_prefix ../ cdup
 923        if {[catch {cd $cdup} err]} {
 924                catch {wm withdraw .}
 925                error_popup [strcat [mc "Cannot move to top of working directory:"] "\n\n$err"]
 926                exit 1
 927        }
 928        unset cdup
 929} elseif {![is_enabled bare]} {
 930        if {[lindex [file split $_gitdir] end] ne {.git}} {
 931                catch {wm withdraw .}
 932                error_popup [strcat [mc "Cannot use funny .git directory:"] "\n\n$_gitdir"]
 933                exit 1
 934        }
 935        if {[catch {cd [file dirname $_gitdir]} err]} {
 936                catch {wm withdraw .}
 937                error_popup [strcat [mc "No working directory"] " [file dirname $_gitdir]:\n\n$err"]
 938                exit 1
 939        }
 940}
 941set _reponame [file split [file normalize $_gitdir]]
 942if {[lindex $_reponame end] eq {.git}} {
 943        set _reponame [lindex $_reponame end-1]
 944} else {
 945        set _reponame [lindex $_reponame end]
 946}
 947
 948######################################################################
 949##
 950## global init
 951
 952set current_diff_path {}
 953set current_diff_side {}
 954set diff_actions [list]
 955
 956set HEAD {}
 957set PARENT {}
 958set MERGE_HEAD [list]
 959set commit_type {}
 960set empty_tree {}
 961set current_branch {}
 962set is_detached 0
 963set current_diff_path {}
 964set is_3way_diff 0
 965set selected_commit_type new
 966
 967######################################################################
 968##
 969## task management
 970
 971set rescan_active 0
 972set diff_active 0
 973set last_clicked {}
 974
 975set disable_on_lock [list]
 976set index_lock_type none
 977
 978proc lock_index {type} {
 979        global index_lock_type disable_on_lock
 980
 981        if {$index_lock_type eq {none}} {
 982                set index_lock_type $type
 983                foreach w $disable_on_lock {
 984                        uplevel #0 $w disabled
 985                }
 986                return 1
 987        } elseif {$index_lock_type eq "begin-$type"} {
 988                set index_lock_type $type
 989                return 1
 990        }
 991        return 0
 992}
 993
 994proc unlock_index {} {
 995        global index_lock_type disable_on_lock
 996
 997        set index_lock_type none
 998        foreach w $disable_on_lock {
 999                uplevel #0 $w normal
1000        }
1001}
1002
1003######################################################################
1004##
1005## status
1006
1007proc repository_state {ctvar hdvar mhvar} {
1008        global current_branch
1009        upvar $ctvar ct $hdvar hd $mhvar mh
1010
1011        set mh [list]
1012
1013        load_current_branch
1014        if {[catch {set hd [git rev-parse --verify HEAD]}]} {
1015                set hd {}
1016                set ct initial
1017                return
1018        }
1019
1020        set merge_head [gitdir MERGE_HEAD]
1021        if {[file exists $merge_head]} {
1022                set ct merge
1023                set fd_mh [open $merge_head r]
1024                while {[gets $fd_mh line] >= 0} {
1025                        lappend mh $line
1026                }
1027                close $fd_mh
1028                return
1029        }
1030
1031        set ct normal
1032}
1033
1034proc PARENT {} {
1035        global PARENT empty_tree
1036
1037        set p [lindex $PARENT 0]
1038        if {$p ne {}} {
1039                return $p
1040        }
1041        if {$empty_tree eq {}} {
1042                set empty_tree [git mktree << {}]
1043        }
1044        return $empty_tree
1045}
1046
1047proc rescan {after {honor_trustmtime 1}} {
1048        global HEAD PARENT MERGE_HEAD commit_type
1049        global ui_index ui_workdir ui_comm
1050        global rescan_active file_states
1051        global repo_config
1052
1053        if {$rescan_active > 0 || ![lock_index read]} return
1054
1055        repository_state newType newHEAD newMERGE_HEAD
1056        if {[string match amend* $commit_type]
1057                && $newType eq {normal}
1058                && $newHEAD eq $HEAD} {
1059        } else {
1060                set HEAD $newHEAD
1061                set PARENT $newHEAD
1062                set MERGE_HEAD $newMERGE_HEAD
1063                set commit_type $newType
1064        }
1065
1066        array unset file_states
1067
1068        if {!$::GITGUI_BCK_exists &&
1069                (![$ui_comm edit modified]
1070                || [string trim [$ui_comm get 0.0 end]] eq {})} {
1071                if {[string match amend* $commit_type]} {
1072                } elseif {[load_message GITGUI_MSG]} {
1073                } elseif {[load_message MERGE_MSG]} {
1074                } elseif {[load_message SQUASH_MSG]} {
1075                }
1076                $ui_comm edit reset
1077                $ui_comm edit modified false
1078        }
1079
1080        if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
1081                rescan_stage2 {} $after
1082        } else {
1083                set rescan_active 1
1084                ui_status [mc "Refreshing file status..."]
1085                set fd_rf [git_read update-index \
1086                        -q \
1087                        --unmerged \
1088                        --ignore-missing \
1089                        --refresh \
1090                        ]
1091                fconfigure $fd_rf -blocking 0 -translation binary
1092                fileevent $fd_rf readable \
1093                        [list rescan_stage2 $fd_rf $after]
1094        }
1095}
1096
1097if {[is_Cygwin]} {
1098        set is_git_info_link {}
1099        set is_git_info_exclude {}
1100        proc have_info_exclude {} {
1101                global is_git_info_link is_git_info_exclude
1102
1103                if {$is_git_info_link eq {}} {
1104                        set is_git_info_link [file isfile [gitdir info.lnk]]
1105                }
1106
1107                if {$is_git_info_link} {
1108                        if {$is_git_info_exclude eq {}} {
1109                                if {[catch {exec test -f [gitdir info exclude]}]} {
1110                                        set is_git_info_exclude 0
1111                                } else {
1112                                        set is_git_info_exclude 1
1113                                }
1114                        }
1115                        return $is_git_info_exclude
1116                } else {
1117                        return [file readable [gitdir info exclude]]
1118                }
1119        }
1120} else {
1121        proc have_info_exclude {} {
1122                return [file readable [gitdir info exclude]]
1123        }
1124}
1125
1126proc rescan_stage2 {fd after} {
1127        global rescan_active buf_rdi buf_rdf buf_rlo
1128
1129        if {$fd ne {}} {
1130                read $fd
1131                if {![eof $fd]} return
1132                close $fd
1133        }
1134
1135        set ls_others [list --exclude-per-directory=.gitignore]
1136        if {[have_info_exclude]} {
1137                lappend ls_others "--exclude-from=[gitdir info exclude]"
1138        }
1139        set user_exclude [get_config core.excludesfile]
1140        if {$user_exclude ne {} && [file readable $user_exclude]} {
1141                lappend ls_others "--exclude-from=$user_exclude"
1142        }
1143
1144        set buf_rdi {}
1145        set buf_rdf {}
1146        set buf_rlo {}
1147
1148        set rescan_active 3
1149        ui_status [mc "Scanning for modified files ..."]
1150        set fd_di [git_read diff-index --cached -z [PARENT]]
1151        set fd_df [git_read diff-files -z]
1152        set fd_lo [eval git_read ls-files --others -z $ls_others]
1153
1154        fconfigure $fd_di -blocking 0 -translation binary -encoding binary
1155        fconfigure $fd_df -blocking 0 -translation binary -encoding binary
1156        fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
1157        fileevent $fd_di readable [list read_diff_index $fd_di $after]
1158        fileevent $fd_df readable [list read_diff_files $fd_df $after]
1159        fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
1160}
1161
1162proc load_message {file} {
1163        global ui_comm
1164
1165        set f [gitdir $file]
1166        if {[file isfile $f]} {
1167                if {[catch {set fd [open $f r]}]} {
1168                        return 0
1169                }
1170                fconfigure $fd -eofchar {}
1171                set content [string trim [read $fd]]
1172                close $fd
1173                regsub -all -line {[ \r\t]+$} $content {} content
1174                $ui_comm delete 0.0 end
1175                $ui_comm insert end $content
1176                return 1
1177        }
1178        return 0
1179}
1180
1181proc read_diff_index {fd after} {
1182        global buf_rdi
1183
1184        append buf_rdi [read $fd]
1185        set c 0
1186        set n [string length $buf_rdi]
1187        while {$c < $n} {
1188                set z1 [string first "\0" $buf_rdi $c]
1189                if {$z1 == -1} break
1190                incr z1
1191                set z2 [string first "\0" $buf_rdi $z1]
1192                if {$z2 == -1} break
1193
1194                incr c
1195                set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
1196                set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
1197                merge_state \
1198                        [encoding convertfrom $p] \
1199                        [lindex $i 4]? \
1200                        [list [lindex $i 0] [lindex $i 2]] \
1201                        [list]
1202                set c $z2
1203                incr c
1204        }
1205        if {$c < $n} {
1206                set buf_rdi [string range $buf_rdi $c end]
1207        } else {
1208                set buf_rdi {}
1209        }
1210
1211        rescan_done $fd buf_rdi $after
1212}
1213
1214proc read_diff_files {fd after} {
1215        global buf_rdf
1216
1217        append buf_rdf [read $fd]
1218        set c 0
1219        set n [string length $buf_rdf]
1220        while {$c < $n} {
1221                set z1 [string first "\0" $buf_rdf $c]
1222                if {$z1 == -1} break
1223                incr z1
1224                set z2 [string first "\0" $buf_rdf $z1]
1225                if {$z2 == -1} break
1226
1227                incr c
1228                set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
1229                set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
1230                merge_state \
1231                        [encoding convertfrom $p] \
1232                        ?[lindex $i 4] \
1233                        [list] \
1234                        [list [lindex $i 0] [lindex $i 2]]
1235                set c $z2
1236                incr c
1237        }
1238        if {$c < $n} {
1239                set buf_rdf [string range $buf_rdf $c end]
1240        } else {
1241                set buf_rdf {}
1242        }
1243
1244        rescan_done $fd buf_rdf $after
1245}
1246
1247proc read_ls_others {fd after} {
1248        global buf_rlo
1249
1250        append buf_rlo [read $fd]
1251        set pck [split $buf_rlo "\0"]
1252        set buf_rlo [lindex $pck end]
1253        foreach p [lrange $pck 0 end-1] {
1254                set p [encoding convertfrom $p]
1255                if {[string index $p end] eq {/}} {
1256                        set p [string range $p 0 end-1]
1257                }
1258                merge_state $p ?O
1259        }
1260        rescan_done $fd buf_rlo $after
1261}
1262
1263proc rescan_done {fd buf after} {
1264        global rescan_active current_diff_path
1265        global file_states repo_config
1266        upvar $buf to_clear
1267
1268        if {![eof $fd]} return
1269        set to_clear {}
1270        close $fd
1271        if {[incr rescan_active -1] > 0} return
1272
1273        prune_selection
1274        unlock_index
1275        display_all_files
1276        if {$current_diff_path ne {}} reshow_diff
1277        uplevel #0 $after
1278}
1279
1280proc prune_selection {} {
1281        global file_states selected_paths
1282
1283        foreach path [array names selected_paths] {
1284                if {[catch {set still_here $file_states($path)}]} {
1285                        unset selected_paths($path)
1286                }
1287        }
1288}
1289
1290######################################################################
1291##
1292## ui helpers
1293
1294proc mapicon {w state path} {
1295        global all_icons
1296
1297        if {[catch {set r $all_icons($state$w)}]} {
1298                puts "error: no icon for $w state={$state} $path"
1299                return file_plain
1300        }
1301        return $r
1302}
1303
1304proc mapdesc {state path} {
1305        global all_descs
1306
1307        if {[catch {set r $all_descs($state)}]} {
1308                puts "error: no desc for state={$state} $path"
1309                return $state
1310        }
1311        return $r
1312}
1313
1314proc ui_status {msg} {
1315        global main_status
1316        if {[info exists main_status]} {
1317                $main_status show $msg
1318        }
1319}
1320
1321proc ui_ready {{test {}}} {
1322        global main_status
1323        if {[info exists main_status]} {
1324                $main_status show [mc "Ready."] $test
1325        }
1326}
1327
1328proc escape_path {path} {
1329        regsub -all {\\} $path "\\\\" path
1330        regsub -all "\n" $path "\\n" path
1331        return $path
1332}
1333
1334proc short_path {path} {
1335        return [escape_path [lindex [file split $path] end]]
1336}
1337
1338set next_icon_id 0
1339set null_sha1 [string repeat 0 40]
1340
1341proc merge_state {path new_state {head_info {}} {index_info {}}} {
1342        global file_states next_icon_id null_sha1
1343
1344        set s0 [string index $new_state 0]
1345        set s1 [string index $new_state 1]
1346
1347        if {[catch {set info $file_states($path)}]} {
1348                set state __
1349                set icon n[incr next_icon_id]
1350        } else {
1351                set state [lindex $info 0]
1352                set icon [lindex $info 1]
1353                if {$head_info eq {}}  {set head_info  [lindex $info 2]}
1354                if {$index_info eq {}} {set index_info [lindex $info 3]}
1355        }
1356
1357        if     {$s0 eq {?}} {set s0 [string index $state 0]} \
1358        elseif {$s0 eq {_}} {set s0 _}
1359
1360        if     {$s1 eq {?}} {set s1 [string index $state 1]} \
1361        elseif {$s1 eq {_}} {set s1 _}
1362
1363        if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
1364                set head_info [list 0 $null_sha1]
1365        } elseif {$s0 ne {_} && [string index $state 0] eq {_}
1366                && $head_info eq {}} {
1367                set head_info $index_info
1368        }
1369
1370        set file_states($path) [list $s0$s1 $icon \
1371                $head_info $index_info \
1372                ]
1373        return $state
1374}
1375
1376proc display_file_helper {w path icon_name old_m new_m} {
1377        global file_lists
1378
1379        if {$new_m eq {_}} {
1380                set lno [lsearch -sorted -exact $file_lists($w) $path]
1381                if {$lno >= 0} {
1382                        set file_lists($w) [lreplace $file_lists($w) $lno $lno]
1383                        incr lno
1384                        $w conf -state normal
1385                        $w delete $lno.0 [expr {$lno + 1}].0
1386                        $w conf -state disabled
1387                }
1388        } elseif {$old_m eq {_} && $new_m ne {_}} {
1389                lappend file_lists($w) $path
1390                set file_lists($w) [lsort -unique $file_lists($w)]
1391                set lno [lsearch -sorted -exact $file_lists($w) $path]
1392                incr lno
1393                $w conf -state normal
1394                $w image create $lno.0 \
1395                        -align center -padx 5 -pady 1 \
1396                        -name $icon_name \
1397                        -image [mapicon $w $new_m $path]
1398                $w insert $lno.1 "[escape_path $path]\n"
1399                $w conf -state disabled
1400        } elseif {$old_m ne $new_m} {
1401                $w conf -state normal
1402                $w image conf $icon_name -image [mapicon $w $new_m $path]
1403                $w conf -state disabled
1404        }
1405}
1406
1407proc display_file {path state} {
1408        global file_states selected_paths
1409        global ui_index ui_workdir
1410
1411        set old_m [merge_state $path $state]
1412        set s $file_states($path)
1413        set new_m [lindex $s 0]
1414        set icon_name [lindex $s 1]
1415
1416        set o [string index $old_m 0]
1417        set n [string index $new_m 0]
1418        if {$o eq {U}} {
1419                set o _
1420        }
1421        if {$n eq {U}} {
1422                set n _
1423        }
1424        display_file_helper     $ui_index $path $icon_name $o $n
1425
1426        if {[string index $old_m 0] eq {U}} {
1427                set o U
1428        } else {
1429                set o [string index $old_m 1]
1430        }
1431        if {[string index $new_m 0] eq {U}} {
1432                set n U
1433        } else {
1434                set n [string index $new_m 1]
1435        }
1436        display_file_helper     $ui_workdir $path $icon_name $o $n
1437
1438        if {$new_m eq {__}} {
1439                unset file_states($path)
1440                catch {unset selected_paths($path)}
1441        }
1442}
1443
1444proc display_all_files_helper {w path icon_name m} {
1445        global file_lists
1446
1447        lappend file_lists($w) $path
1448        set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
1449        $w image create end \
1450                -align center -padx 5 -pady 1 \
1451                -name $icon_name \
1452                -image [mapicon $w $m $path]
1453        $w insert end "[escape_path $path]\n"
1454}
1455
1456proc display_all_files {} {
1457        global ui_index ui_workdir
1458        global file_states file_lists
1459        global last_clicked
1460
1461        $ui_index conf -state normal
1462        $ui_workdir conf -state normal
1463
1464        $ui_index delete 0.0 end
1465        $ui_workdir delete 0.0 end
1466        set last_clicked {}
1467
1468        set file_lists($ui_index) [list]
1469        set file_lists($ui_workdir) [list]
1470
1471        foreach path [lsort [array names file_states]] {
1472                set s $file_states($path)
1473                set m [lindex $s 0]
1474                set icon_name [lindex $s 1]
1475
1476                set s [string index $m 0]
1477                if {$s ne {U} && $s ne {_}} {
1478                        display_all_files_helper $ui_index $path \
1479                                $icon_name $s
1480                }
1481
1482                if {[string index $m 0] eq {U}} {
1483                        set s U
1484                } else {
1485                        set s [string index $m 1]
1486                }
1487                if {$s ne {_}} {
1488                        display_all_files_helper $ui_workdir $path \
1489                                $icon_name $s
1490                }
1491        }
1492
1493        $ui_index conf -state disabled
1494        $ui_workdir conf -state disabled
1495}
1496
1497######################################################################
1498##
1499## icons
1500
1501set filemask {
1502#define mask_width 14
1503#define mask_height 15
1504static unsigned char mask_bits[] = {
1505   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1506   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1507   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
1508}
1509
1510image create bitmap file_plain -background white -foreground black -data {
1511#define plain_width 14
1512#define plain_height 15
1513static unsigned char plain_bits[] = {
1514   0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1515   0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
1516   0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1517} -maskdata $filemask
1518
1519image create bitmap file_mod -background white -foreground blue -data {
1520#define mod_width 14
1521#define mod_height 15
1522static unsigned char mod_bits[] = {
1523   0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
1524   0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1525   0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
1526} -maskdata $filemask
1527
1528image create bitmap file_fulltick -background white -foreground "#007000" -data {
1529#define file_fulltick_width 14
1530#define file_fulltick_height 15
1531static unsigned char file_fulltick_bits[] = {
1532   0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
1533   0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
1534   0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1535} -maskdata $filemask
1536
1537image create bitmap file_parttick -background white -foreground "#005050" -data {
1538#define parttick_width 14
1539#define parttick_height 15
1540static unsigned char parttick_bits[] = {
1541   0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
1542   0x7a, 0x14, 0x02, 0x16, 0x02, 0x13, 0x8a, 0x11, 0xda, 0x10, 0x72, 0x10,
1543   0x22, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1544} -maskdata $filemask
1545
1546image create bitmap file_question -background white -foreground black -data {
1547#define file_question_width 14
1548#define file_question_height 15
1549static unsigned char file_question_bits[] = {
1550   0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
1551   0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
1552   0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1553} -maskdata $filemask
1554
1555image create bitmap file_removed -background white -foreground red -data {
1556#define file_removed_width 14
1557#define file_removed_height 15
1558static unsigned char file_removed_bits[] = {
1559   0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1560   0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
1561   0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
1562} -maskdata $filemask
1563
1564image create bitmap file_merge -background white -foreground blue -data {
1565#define file_merge_width 14
1566#define file_merge_height 15
1567static unsigned char file_merge_bits[] = {
1568   0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
1569   0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1570   0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
1571} -maskdata $filemask
1572
1573set ui_index .vpane.files.index.list
1574set ui_workdir .vpane.files.workdir.list
1575
1576set all_icons(_$ui_index)   file_plain
1577set all_icons(A$ui_index)   file_fulltick
1578set all_icons(M$ui_index)   file_fulltick
1579set all_icons(D$ui_index)   file_removed
1580set all_icons(U$ui_index)   file_merge
1581
1582set all_icons(_$ui_workdir) file_plain
1583set all_icons(M$ui_workdir) file_mod
1584set all_icons(D$ui_workdir) file_question
1585set all_icons(U$ui_workdir) file_merge
1586set all_icons(O$ui_workdir) file_plain
1587
1588set max_status_desc 0
1589foreach i {
1590                {__ {mc "Unmodified"}}
1591
1592                {_M {mc "Modified, not staged"}}
1593                {M_ {mc "Staged for commit"}}
1594                {MM {mc "Portions staged for commit"}}
1595                {MD {mc "Staged for commit, missing"}}
1596
1597                {_O {mc "Untracked, not staged"}}
1598                {A_ {mc "Staged for commit"}}
1599                {AM {mc "Portions staged for commit"}}
1600                {AD {mc "Staged for commit, missing"}}
1601
1602                {_D {mc "Missing"}}
1603                {D_ {mc "Staged for removal"}}
1604                {DO {mc "Staged for removal, still present"}}
1605
1606                {U_ {mc "Requires merge resolution"}}
1607                {UU {mc "Requires merge resolution"}}
1608                {UM {mc "Requires merge resolution"}}
1609                {UD {mc "Requires merge resolution"}}
1610        } {
1611        set text [eval [lindex $i 1]]
1612        if {$max_status_desc < [string length $text]} {
1613                set max_status_desc [string length $text]
1614        }
1615        set all_descs([lindex $i 0]) $text
1616}
1617unset i
1618
1619######################################################################
1620##
1621## util
1622
1623proc scrollbar2many {list mode args} {
1624        foreach w $list {eval $w $mode $args}
1625}
1626
1627proc many2scrollbar {list mode sb top bottom} {
1628        $sb set $top $bottom
1629        foreach w $list {$w $mode moveto $top}
1630}
1631
1632proc incr_font_size {font {amt 1}} {
1633        set sz [font configure $font -size]
1634        incr sz $amt
1635        font configure $font -size $sz
1636        font configure ${font}bold -size $sz
1637        font configure ${font}italic -size $sz
1638}
1639
1640######################################################################
1641##
1642## ui commands
1643
1644set starting_gitk_msg [mc "Starting gitk... please wait..."]
1645
1646proc do_gitk {revs} {
1647        # -- Always start gitk through whatever we were loaded with.  This
1648        #    lets us bypass using shell process on Windows systems.
1649        #
1650        set exe [file join [file dirname $::_git] gitk]
1651        set cmd [list [info nameofexecutable] $exe]
1652        if {! [file exists $exe]} {
1653                error_popup [mc "Unable to start gitk:\n\n%s does not exist" $exe]
1654        } else {
1655                global env
1656
1657                if {[info exists env(GIT_DIR)]} {
1658                        set old_GIT_DIR $env(GIT_DIR)
1659                } else {
1660                        set old_GIT_DIR {}
1661                }
1662
1663                set pwd [pwd]
1664                cd [file dirname [gitdir]]
1665                set env(GIT_DIR) [file tail [gitdir]]
1666
1667                eval exec $cmd $revs &
1668
1669                if {$old_GIT_DIR eq {}} {
1670                        unset env(GIT_DIR)
1671                } else {
1672                        set env(GIT_DIR) $old_GIT_DIR
1673                }
1674                cd $pwd
1675
1676                ui_status $::starting_gitk_msg
1677                after 10000 {
1678                        ui_ready $starting_gitk_msg
1679                }
1680        }
1681}
1682
1683set is_quitting 0
1684
1685proc do_quit {} {
1686        global ui_comm is_quitting repo_config commit_type
1687        global GITGUI_BCK_exists GITGUI_BCK_i
1688        global ui_comm_spell
1689
1690        if {$is_quitting} return
1691        set is_quitting 1
1692
1693        if {[winfo exists $ui_comm]} {
1694                # -- Stash our current commit buffer.
1695                #
1696                set save [gitdir GITGUI_MSG]
1697                if {$GITGUI_BCK_exists && ![$ui_comm edit modified]} {
1698                        file rename -force [gitdir GITGUI_BCK] $save
1699                        set GITGUI_BCK_exists 0
1700                } else {
1701                        set msg [string trim [$ui_comm get 0.0 end]]
1702                        regsub -all -line {[ \r\t]+$} $msg {} msg
1703                        if {(![string match amend* $commit_type]
1704                                || [$ui_comm edit modified])
1705                                && $msg ne {}} {
1706                                catch {
1707                                        set fd [open $save w]
1708                                        puts -nonewline $fd $msg
1709                                        close $fd
1710                                }
1711                        } else {
1712                                catch {file delete $save}
1713                        }
1714                }
1715
1716                # -- Cancel our spellchecker if its running.
1717                #
1718                if {[info exists ui_comm_spell]} {
1719                        $ui_comm_spell stop
1720                }
1721
1722                # -- Remove our editor backup, its not needed.
1723                #
1724                after cancel $GITGUI_BCK_i
1725                if {$GITGUI_BCK_exists} {
1726                        catch {file delete [gitdir GITGUI_BCK]}
1727                }
1728
1729                # -- Stash our current window geometry into this repository.
1730                #
1731                set cfg_geometry [list]
1732                lappend cfg_geometry [wm geometry .]
1733                lappend cfg_geometry [lindex [.vpane sash coord 0] 0]
1734                lappend cfg_geometry [lindex [.vpane.files sash coord 0] 1]
1735                if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
1736                        set rc_geometry {}
1737                }
1738                if {$cfg_geometry ne $rc_geometry} {
1739                        catch {git config gui.geometry $cfg_geometry}
1740                }
1741        }
1742
1743        destroy .
1744}
1745
1746proc do_rescan {} {
1747        rescan ui_ready
1748}
1749
1750proc do_commit {} {
1751        commit_tree
1752}
1753
1754proc toggle_or_diff {w x y} {
1755        global file_states file_lists current_diff_path ui_index ui_workdir
1756        global last_clicked selected_paths
1757
1758        set pos [split [$w index @$x,$y] .]
1759        set lno [lindex $pos 0]
1760        set col [lindex $pos 1]
1761        set path [lindex $file_lists($w) [expr {$lno - 1}]]
1762        if {$path eq {}} {
1763                set last_clicked {}
1764                return
1765        }
1766
1767        set last_clicked [list $w $lno]
1768        array unset selected_paths
1769        $ui_index tag remove in_sel 0.0 end
1770        $ui_workdir tag remove in_sel 0.0 end
1771
1772        if {$col == 0} {
1773                if {$current_diff_path eq $path} {
1774                        set after {reshow_diff;}
1775                } else {
1776                        set after {}
1777                }
1778                if {$w eq $ui_index} {
1779                        update_indexinfo \
1780                                "Unstaging [short_path $path] from commit" \
1781                                [list $path] \
1782                                [concat $after [list ui_ready]]
1783                } elseif {$w eq $ui_workdir} {
1784                        update_index \
1785                                "Adding [short_path $path]" \
1786                                [list $path] \
1787                                [concat $after [list ui_ready]]
1788                }
1789        } else {
1790                show_diff $path $w $lno
1791        }
1792}
1793
1794proc add_one_to_selection {w x y} {
1795        global file_lists last_clicked selected_paths
1796
1797        set lno [lindex [split [$w index @$x,$y] .] 0]
1798        set path [lindex $file_lists($w) [expr {$lno - 1}]]
1799        if {$path eq {}} {
1800                set last_clicked {}
1801                return
1802        }
1803
1804        if {$last_clicked ne {}
1805                && [lindex $last_clicked 0] ne $w} {
1806                array unset selected_paths
1807                [lindex $last_clicked 0] tag remove in_sel 0.0 end
1808        }
1809
1810        set last_clicked [list $w $lno]
1811        if {[catch {set in_sel $selected_paths($path)}]} {
1812                set in_sel 0
1813        }
1814        if {$in_sel} {
1815                unset selected_paths($path)
1816                $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
1817        } else {
1818                set selected_paths($path) 1
1819                $w tag add in_sel $lno.0 [expr {$lno + 1}].0
1820        }
1821}
1822
1823proc add_range_to_selection {w x y} {
1824        global file_lists last_clicked selected_paths
1825
1826        if {[lindex $last_clicked 0] ne $w} {
1827                toggle_or_diff $w $x $y
1828                return
1829        }
1830
1831        set lno [lindex [split [$w index @$x,$y] .] 0]
1832        set lc [lindex $last_clicked 1]
1833        if {$lc < $lno} {
1834                set begin $lc
1835                set end $lno
1836        } else {
1837                set begin $lno
1838                set end $lc
1839        }
1840
1841        foreach path [lrange $file_lists($w) \
1842                [expr {$begin - 1}] \
1843                [expr {$end - 1}]] {
1844                set selected_paths($path) 1
1845        }
1846        $w tag add in_sel $begin.0 [expr {$end + 1}].0
1847}
1848
1849proc show_more_context {} {
1850        global repo_config
1851        if {$repo_config(gui.diffcontext) < 99} {
1852                incr repo_config(gui.diffcontext)
1853                reshow_diff
1854        }
1855}
1856
1857proc show_less_context {} {
1858        global repo_config
1859        if {$repo_config(gui.diffcontext) >= 1} {
1860                incr repo_config(gui.diffcontext) -1
1861                reshow_diff
1862        }
1863}
1864
1865######################################################################
1866##
1867## ui construction
1868
1869load_config 0
1870apply_config
1871set ui_comm {}
1872
1873# -- Menu Bar
1874#
1875menu .mbar -tearoff 0
1876.mbar add cascade -label [mc Repository] -menu .mbar.repository
1877.mbar add cascade -label [mc Edit] -menu .mbar.edit
1878if {[is_enabled branch]} {
1879        .mbar add cascade -label [mc Branch] -menu .mbar.branch
1880}
1881if {[is_enabled multicommit] || [is_enabled singlecommit]} {
1882        .mbar add cascade -label [mc Commit@@noun] -menu .mbar.commit
1883}
1884if {[is_enabled transport]} {
1885        .mbar add cascade -label [mc Merge] -menu .mbar.merge
1886        .mbar add cascade -label [mc Remote] -menu .mbar.remote
1887}
1888. configure -menu .mbar
1889
1890# -- Repository Menu
1891#
1892menu .mbar.repository
1893
1894.mbar.repository add command \
1895        -label [mc "Browse Current Branch's Files"] \
1896        -command {browser::new $current_branch}
1897set ui_browse_current [.mbar.repository index last]
1898.mbar.repository add command \
1899        -label [mc "Browse Branch Files..."] \
1900        -command browser_open::dialog
1901.mbar.repository add separator
1902
1903.mbar.repository add command \
1904        -label [mc "Visualize Current Branch's History"] \
1905        -command {do_gitk $current_branch}
1906set ui_visualize_current [.mbar.repository index last]
1907.mbar.repository add command \
1908        -label [mc "Visualize All Branch History"] \
1909        -command {do_gitk --all}
1910.mbar.repository add separator
1911
1912proc current_branch_write {args} {
1913        global current_branch
1914        .mbar.repository entryconf $::ui_browse_current \
1915                -label [mc "Browse %s's Files" $current_branch]
1916        .mbar.repository entryconf $::ui_visualize_current \
1917                -label [mc "Visualize %s's History" $current_branch]
1918}
1919trace add variable current_branch write current_branch_write
1920
1921if {[is_enabled multicommit]} {
1922        .mbar.repository add command -label [mc "Database Statistics"] \
1923                -command do_stats
1924
1925        .mbar.repository add command -label [mc "Compress Database"] \
1926                -command do_gc
1927
1928        .mbar.repository add command -label [mc "Verify Database"] \
1929                -command do_fsck_objects
1930
1931        .mbar.repository add separator
1932
1933        if {[is_Cygwin]} {
1934                .mbar.repository add command \
1935                        -label [mc "Create Desktop Icon"] \
1936                        -command do_cygwin_shortcut
1937        } elseif {[is_Windows]} {
1938                .mbar.repository add command \
1939                        -label [mc "Create Desktop Icon"] \
1940                        -command do_windows_shortcut
1941        } elseif {[is_MacOSX]} {
1942                .mbar.repository add command \
1943                        -label [mc "Create Desktop Icon"] \
1944                        -command do_macosx_app
1945        }
1946}
1947
1948.mbar.repository add command -label [mc Quit] \
1949        -command do_quit \
1950        -accelerator $M1T-Q
1951
1952# -- Edit Menu
1953#
1954menu .mbar.edit
1955.mbar.edit add command -label [mc Undo] \
1956        -command {catch {[focus] edit undo}} \
1957        -accelerator $M1T-Z
1958.mbar.edit add command -label [mc Redo] \
1959        -command {catch {[focus] edit redo}} \
1960        -accelerator $M1T-Y
1961.mbar.edit add separator
1962.mbar.edit add command -label [mc Cut] \
1963        -command {catch {tk_textCut [focus]}} \
1964        -accelerator $M1T-X
1965.mbar.edit add command -label [mc Copy] \
1966        -command {catch {tk_textCopy [focus]}} \
1967        -accelerator $M1T-C
1968.mbar.edit add command -label [mc Paste] \
1969        -command {catch {tk_textPaste [focus]; [focus] see insert}} \
1970        -accelerator $M1T-V
1971.mbar.edit add command -label [mc Delete] \
1972        -command {catch {[focus] delete sel.first sel.last}} \
1973        -accelerator Del
1974.mbar.edit add separator
1975.mbar.edit add command -label [mc "Select All"] \
1976        -command {catch {[focus] tag add sel 0.0 end}} \
1977        -accelerator $M1T-A
1978
1979# -- Branch Menu
1980#
1981if {[is_enabled branch]} {
1982        menu .mbar.branch
1983
1984        .mbar.branch add command -label [mc "Create..."] \
1985                -command branch_create::dialog \
1986                -accelerator $M1T-N
1987        lappend disable_on_lock [list .mbar.branch entryconf \
1988                [.mbar.branch index last] -state]
1989
1990        .mbar.branch add command -label [mc "Checkout..."] \
1991                -command branch_checkout::dialog \
1992                -accelerator $M1T-O
1993        lappend disable_on_lock [list .mbar.branch entryconf \
1994                [.mbar.branch index last] -state]
1995
1996        .mbar.branch add command -label [mc "Rename..."] \
1997                -command branch_rename::dialog
1998        lappend disable_on_lock [list .mbar.branch entryconf \
1999                [.mbar.branch index last] -state]
2000
2001        .mbar.branch add command -label [mc "Delete..."] \
2002                -command branch_delete::dialog
2003        lappend disable_on_lock [list .mbar.branch entryconf \
2004                [.mbar.branch index last] -state]
2005
2006        .mbar.branch add command -label [mc "Reset..."] \
2007                -command merge::reset_hard
2008        lappend disable_on_lock [list .mbar.branch entryconf \
2009                [.mbar.branch index last] -state]
2010}
2011
2012# -- Commit Menu
2013#
2014if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2015        menu .mbar.commit
2016
2017        .mbar.commit add radiobutton \
2018                -label [mc "New Commit"] \
2019                -command do_select_commit_type \
2020                -variable selected_commit_type \
2021                -value new
2022        lappend disable_on_lock \
2023                [list .mbar.commit entryconf [.mbar.commit index last] -state]
2024
2025        .mbar.commit add radiobutton \
2026                -label [mc "Amend Last Commit"] \
2027                -command do_select_commit_type \
2028                -variable selected_commit_type \
2029                -value amend
2030        lappend disable_on_lock \
2031                [list .mbar.commit entryconf [.mbar.commit index last] -state]
2032
2033        .mbar.commit add separator
2034
2035        .mbar.commit add command -label [mc Rescan] \
2036                -command do_rescan \
2037                -accelerator F5
2038        lappend disable_on_lock \
2039                [list .mbar.commit entryconf [.mbar.commit index last] -state]
2040
2041        .mbar.commit add command -label [mc "Stage To Commit"] \
2042                -command do_add_selection \
2043                -accelerator $M1T-T
2044        lappend disable_on_lock \
2045                [list .mbar.commit entryconf [.mbar.commit index last] -state]
2046
2047        .mbar.commit add command -label [mc "Stage Changed Files To Commit"] \
2048                -command do_add_all \
2049                -accelerator $M1T-I
2050        lappend disable_on_lock \
2051                [list .mbar.commit entryconf [.mbar.commit index last] -state]
2052
2053        .mbar.commit add command -label [mc "Unstage From Commit"] \
2054                -command do_unstage_selection
2055        lappend disable_on_lock \
2056                [list .mbar.commit entryconf [.mbar.commit index last] -state]
2057
2058        .mbar.commit add command -label [mc "Revert Changes"] \
2059                -command do_revert_selection
2060        lappend disable_on_lock \
2061                [list .mbar.commit entryconf [.mbar.commit index last] -state]
2062
2063        .mbar.commit add separator
2064
2065        .mbar.commit add command -label [mc "Show Less Context"] \
2066                -command show_less_context \
2067                -accelerator $M1T-\-
2068
2069        .mbar.commit add command -label [mc "Show More Context"] \
2070                -command show_more_context \
2071                -accelerator $M1T-=
2072
2073        .mbar.commit add separator
2074
2075        .mbar.commit add command -label [mc "Sign Off"] \
2076                -command do_signoff \
2077                -accelerator $M1T-S
2078
2079        .mbar.commit add command -label [mc Commit@@verb] \
2080                -command do_commit \
2081                -accelerator $M1T-Return
2082        lappend disable_on_lock \
2083                [list .mbar.commit entryconf [.mbar.commit index last] -state]
2084}
2085
2086# -- Merge Menu
2087#
2088if {[is_enabled branch]} {
2089        menu .mbar.merge
2090        .mbar.merge add command -label [mc "Local Merge..."] \
2091                -command merge::dialog \
2092                -accelerator $M1T-M
2093        lappend disable_on_lock \
2094                [list .mbar.merge entryconf [.mbar.merge index last] -state]
2095        .mbar.merge add command -label [mc "Abort Merge..."] \
2096                -command merge::reset_hard
2097        lappend disable_on_lock \
2098                [list .mbar.merge entryconf [.mbar.merge index last] -state]
2099}
2100
2101# -- Transport Menu
2102#
2103if {[is_enabled transport]} {
2104        menu .mbar.remote
2105
2106        .mbar.remote add command \
2107                -label [mc "Push..."] \
2108                -command do_push_anywhere \
2109                -accelerator $M1T-P
2110        .mbar.remote add command \
2111                -label [mc "Delete..."] \
2112                -command remote_branch_delete::dialog
2113}
2114
2115if {[is_MacOSX]} {
2116        # -- Apple Menu (Mac OS X only)
2117        #
2118        .mbar add cascade -label Apple -menu .mbar.apple
2119        menu .mbar.apple
2120
2121        .mbar.apple add command -label [mc "About %s" [appname]] \
2122                -command do_about
2123        .mbar.apple add separator
2124        .mbar.apple add command \
2125                -label [mc "Preferences..."] \
2126                -command do_options \
2127                -accelerator $M1T-,
2128        bind . <$M1B-,> do_options
2129} else {
2130        # -- Edit Menu
2131        #
2132        .mbar.edit add separator
2133        .mbar.edit add command -label [mc "Options..."] \
2134                -command do_options
2135}
2136
2137# -- Help Menu
2138#
2139.mbar add cascade -label [mc Help] -menu .mbar.help
2140menu .mbar.help
2141
2142if {![is_MacOSX]} {
2143        .mbar.help add command -label [mc "About %s" [appname]] \
2144                -command do_about
2145}
2146
2147set browser {}
2148catch {set browser $repo_config(instaweb.browser)}
2149set doc_path [file dirname [gitexec]]
2150set doc_path [file join $doc_path Documentation index.html]
2151
2152if {[is_Cygwin]} {
2153        set doc_path [exec cygpath --mixed $doc_path]
2154}
2155
2156if {$browser eq {}} {
2157        if {[is_MacOSX]} {
2158                set browser open
2159        } elseif {[is_Cygwin]} {
2160                set program_files [file dirname [exec cygpath --windir]]
2161                set program_files [file join $program_files {Program Files}]
2162                set firefox [file join $program_files {Mozilla Firefox} firefox.exe]
2163                set ie [file join $program_files {Internet Explorer} IEXPLORE.EXE]
2164                if {[file exists $firefox]} {
2165                        set browser $firefox
2166                } elseif {[file exists $ie]} {
2167                        set browser $ie
2168                }
2169                unset program_files firefox ie
2170        }
2171}
2172
2173if {[file isfile $doc_path]} {
2174        set doc_url "file:$doc_path"
2175} else {
2176        set doc_url {http://www.kernel.org/pub/software/scm/git/docs/}
2177}
2178
2179if {$browser ne {}} {
2180        .mbar.help add command -label [mc "Online Documentation"] \
2181                -command [list exec $browser $doc_url &]
2182}
2183unset browser doc_path doc_url
2184
2185# -- Standard bindings
2186#
2187wm protocol . WM_DELETE_WINDOW do_quit
2188bind all <$M1B-Key-q> do_quit
2189bind all <$M1B-Key-Q> do_quit
2190bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
2191bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
2192
2193set subcommand_args {}
2194proc usage {} {
2195        puts stderr "usage: $::argv0 $::subcommand $::subcommand_args"
2196        exit 1
2197}
2198
2199# -- Not a normal commit type invocation?  Do that instead!
2200#
2201switch -- $subcommand {
2202browser -
2203blame {
2204        set subcommand_args {rev? path}
2205        if {$argv eq {}} usage
2206        set head {}
2207        set path {}
2208        set is_path 0
2209        foreach a $argv {
2210                if {$is_path || [file exists $_prefix$a]} {
2211                        if {$path ne {}} usage
2212                        set path $_prefix$a
2213                        break
2214                } elseif {$a eq {--}} {
2215                        if {$path ne {}} {
2216                                if {$head ne {}} usage
2217                                set head $path
2218                                set path {}
2219                        }
2220                        set is_path 1
2221                } elseif {$head eq {}} {
2222                        if {$head ne {}} usage
2223                        set head $a
2224                        set is_path 1
2225                } else {
2226                        usage
2227                }
2228        }
2229        unset is_path
2230
2231        if {$head ne {} && $path eq {}} {
2232                set path $_prefix$head
2233                set head {}
2234        }
2235
2236        if {$head eq {}} {
2237                load_current_branch
2238        } else {
2239                if {[regexp {^[0-9a-f]{1,39}$} $head]} {
2240                        if {[catch {
2241                                        set head [git rev-parse --verify $head]
2242                                } err]} {
2243                                puts stderr $err
2244                                exit 1
2245                        }
2246                }
2247                set current_branch $head
2248        }
2249
2250        switch -- $subcommand {
2251        browser {
2252                if {$head eq {}} {
2253                        if {$path ne {} && [file isdirectory $path]} {
2254                                set head $current_branch
2255                        } else {
2256                                set head $path
2257                                set path {}
2258                        }
2259                }
2260                browser::new $head $path
2261        }
2262        blame   {
2263                if {$head eq {} && ![file exists $path]} {
2264                        puts stderr [mc "fatal: cannot stat path %s: No such file or directory" $path]
2265                        exit 1
2266                }
2267                blame::new $head $path
2268        }
2269        }
2270        return
2271}
2272citool -
2273gui {
2274        if {[llength $argv] != 0} {
2275                puts -nonewline stderr "usage: $argv0"
2276                if {$subcommand ne {gui}
2277                        && [file tail $argv0] ne "git-$subcommand"} {
2278                        puts -nonewline stderr " $subcommand"
2279                }
2280                puts stderr {}
2281                exit 1
2282        }
2283        # fall through to setup UI for commits
2284}
2285default {
2286        puts stderr "usage: $argv0 \[{blame|browser|citool}\]"
2287        exit 1
2288}
2289}
2290
2291# -- Branch Control
2292#
2293frame .branch \
2294        -borderwidth 1 \
2295        -relief sunken
2296label .branch.l1 \
2297        -text [mc "Current Branch:"] \
2298        -anchor w \
2299        -justify left
2300label .branch.cb \
2301        -textvariable current_branch \
2302        -anchor w \
2303        -justify left
2304pack .branch.l1 -side left
2305pack .branch.cb -side left -fill x
2306pack .branch -side top -fill x
2307
2308# -- Main Window Layout
2309#
2310panedwindow .vpane -orient horizontal
2311panedwindow .vpane.files -orient vertical
2312.vpane add .vpane.files -sticky nsew -height 100 -width 200
2313pack .vpane -anchor n -side top -fill both -expand 1
2314
2315# -- Index File List
2316#
2317frame .vpane.files.index -height 100 -width 200
2318label .vpane.files.index.title -text [mc "Staged Changes (Will Commit)"] \
2319        -background lightgreen -foreground black
2320text $ui_index -background white -foreground black \
2321        -borderwidth 0 \
2322        -width 20 -height 10 \
2323        -wrap none \
2324        -cursor $cursor_ptr \
2325        -xscrollcommand {.vpane.files.index.sx set} \
2326        -yscrollcommand {.vpane.files.index.sy set} \
2327        -state disabled
2328scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
2329scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
2330pack .vpane.files.index.title -side top -fill x
2331pack .vpane.files.index.sx -side bottom -fill x
2332pack .vpane.files.index.sy -side right -fill y
2333pack $ui_index -side left -fill both -expand 1
2334
2335# -- Working Directory File List
2336#
2337frame .vpane.files.workdir -height 100 -width 200
2338label .vpane.files.workdir.title -text [mc "Unstaged Changes"] \
2339        -background lightsalmon -foreground black
2340text $ui_workdir -background white -foreground black \
2341        -borderwidth 0 \
2342        -width 20 -height 10 \
2343        -wrap none \
2344        -cursor $cursor_ptr \
2345        -xscrollcommand {.vpane.files.workdir.sx set} \
2346        -yscrollcommand {.vpane.files.workdir.sy set} \
2347        -state disabled
2348scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
2349scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
2350pack .vpane.files.workdir.title -side top -fill x
2351pack .vpane.files.workdir.sx -side bottom -fill x
2352pack .vpane.files.workdir.sy -side right -fill y
2353pack $ui_workdir -side left -fill both -expand 1
2354
2355.vpane.files add .vpane.files.workdir -sticky nsew
2356.vpane.files add .vpane.files.index -sticky nsew
2357
2358foreach i [list $ui_index $ui_workdir] {
2359        rmsel_tag $i
2360        $i tag conf in_diff -background [$i tag cget in_sel -background]
2361}
2362unset i
2363
2364# -- Diff and Commit Area
2365#
2366frame .vpane.lower -height 300 -width 400
2367frame .vpane.lower.commarea
2368frame .vpane.lower.diff -relief sunken -borderwidth 1
2369pack .vpane.lower.diff -fill both -expand 1
2370pack .vpane.lower.commarea -side bottom -fill x
2371.vpane add .vpane.lower -sticky nsew
2372
2373# -- Commit Area Buttons
2374#
2375frame .vpane.lower.commarea.buttons
2376label .vpane.lower.commarea.buttons.l -text {} \
2377        -anchor w \
2378        -justify left
2379pack .vpane.lower.commarea.buttons.l -side top -fill x
2380pack .vpane.lower.commarea.buttons -side left -fill y
2381
2382button .vpane.lower.commarea.buttons.rescan -text [mc Rescan] \
2383        -command do_rescan
2384pack .vpane.lower.commarea.buttons.rescan -side top -fill x
2385lappend disable_on_lock \
2386        {.vpane.lower.commarea.buttons.rescan conf -state}
2387
2388button .vpane.lower.commarea.buttons.incall -text [mc "Stage Changed"] \
2389        -command do_add_all
2390pack .vpane.lower.commarea.buttons.incall -side top -fill x
2391lappend disable_on_lock \
2392        {.vpane.lower.commarea.buttons.incall conf -state}
2393
2394button .vpane.lower.commarea.buttons.signoff -text [mc "Sign Off"] \
2395        -command do_signoff
2396pack .vpane.lower.commarea.buttons.signoff -side top -fill x
2397
2398button .vpane.lower.commarea.buttons.commit -text [mc Commit@@verb] \
2399        -command do_commit
2400pack .vpane.lower.commarea.buttons.commit -side top -fill x
2401lappend disable_on_lock \
2402        {.vpane.lower.commarea.buttons.commit conf -state}
2403
2404button .vpane.lower.commarea.buttons.push -text [mc Push] \
2405        -command do_push_anywhere
2406pack .vpane.lower.commarea.buttons.push -side top -fill x
2407
2408# -- Commit Message Buffer
2409#
2410frame .vpane.lower.commarea.buffer
2411frame .vpane.lower.commarea.buffer.header
2412set ui_comm .vpane.lower.commarea.buffer.t
2413set ui_coml .vpane.lower.commarea.buffer.header.l
2414radiobutton .vpane.lower.commarea.buffer.header.new \
2415        -text [mc "New Commit"] \
2416        -command do_select_commit_type \
2417        -variable selected_commit_type \
2418        -value new
2419lappend disable_on_lock \
2420        [list .vpane.lower.commarea.buffer.header.new conf -state]
2421radiobutton .vpane.lower.commarea.buffer.header.amend \
2422        -text [mc "Amend Last Commit"] \
2423        -command do_select_commit_type \
2424        -variable selected_commit_type \
2425        -value amend
2426lappend disable_on_lock \
2427        [list .vpane.lower.commarea.buffer.header.amend conf -state]
2428label $ui_coml \
2429        -anchor w \
2430        -justify left
2431proc trace_commit_type {varname args} {
2432        global ui_coml commit_type
2433        switch -glob -- $commit_type {
2434        initial       {set txt [mc "Initial Commit Message:"]}
2435        amend         {set txt [mc "Amended Commit Message:"]}
2436        amend-initial {set txt [mc "Amended Initial Commit Message:"]}
2437        amend-merge   {set txt [mc "Amended Merge Commit Message:"]}
2438        merge         {set txt [mc "Merge Commit Message:"]}
2439        *             {set txt [mc "Commit Message:"]}
2440        }
2441        $ui_coml conf -text $txt
2442}
2443trace add variable commit_type write trace_commit_type
2444pack $ui_coml -side left -fill x
2445pack .vpane.lower.commarea.buffer.header.amend -side right
2446pack .vpane.lower.commarea.buffer.header.new -side right
2447
2448text $ui_comm -background white -foreground black \
2449        -borderwidth 1 \
2450        -undo true \
2451        -maxundo 20 \
2452        -autoseparators true \
2453        -relief sunken \
2454        -width $repo_config(gui.commitmsgwidth) -height 9 -wrap none \
2455        -font font_diff \
2456        -yscrollcommand {.vpane.lower.commarea.buffer.sby set}
2457scrollbar .vpane.lower.commarea.buffer.sby \
2458        -command [list $ui_comm yview]
2459pack .vpane.lower.commarea.buffer.header -side top -fill x
2460pack .vpane.lower.commarea.buffer.sby -side right -fill y
2461pack $ui_comm -side left -fill y
2462pack .vpane.lower.commarea.buffer -side left -fill y
2463
2464# -- Commit Message Buffer Context Menu
2465#
2466set ctxm .vpane.lower.commarea.buffer.ctxm
2467menu $ctxm -tearoff 0
2468$ctxm add command \
2469        -label [mc Cut] \
2470        -command {tk_textCut $ui_comm}
2471$ctxm add command \
2472        -label [mc Copy] \
2473        -command {tk_textCopy $ui_comm}
2474$ctxm add command \
2475        -label [mc Paste] \
2476        -command {tk_textPaste $ui_comm}
2477$ctxm add command \
2478        -label [mc Delete] \
2479        -command {$ui_comm delete sel.first sel.last}
2480$ctxm add separator
2481$ctxm add command \
2482        -label [mc "Select All"] \
2483        -command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
2484$ctxm add command \
2485        -label [mc "Copy All"] \
2486        -command {
2487                $ui_comm tag add sel 0.0 end
2488                tk_textCopy $ui_comm
2489                $ui_comm tag remove sel 0.0 end
2490        }
2491$ctxm add separator
2492$ctxm add command \
2493        -label [mc "Sign Off"] \
2494        -command do_signoff
2495set ui_comm_ctxm $ctxm
2496
2497# -- Diff Header
2498#
2499proc trace_current_diff_path {varname args} {
2500        global current_diff_path diff_actions file_states
2501        if {$current_diff_path eq {}} {
2502                set s {}
2503                set f {}
2504                set p {}
2505                set o disabled
2506        } else {
2507                set p $current_diff_path
2508                set s [mapdesc [lindex $file_states($p) 0] $p]
2509                set f [mc "File:"]
2510                set p [escape_path $p]
2511                set o normal
2512        }
2513
2514        .vpane.lower.diff.header.status configure -text $s
2515        .vpane.lower.diff.header.file configure -text $f
2516        .vpane.lower.diff.header.path configure -text $p
2517        foreach w $diff_actions {
2518                uplevel #0 $w $o
2519        }
2520}
2521trace add variable current_diff_path write trace_current_diff_path
2522
2523frame .vpane.lower.diff.header -background gold
2524label .vpane.lower.diff.header.status \
2525        -background gold \
2526        -foreground black \
2527        -width $max_status_desc \
2528        -anchor w \
2529        -justify left
2530label .vpane.lower.diff.header.file \
2531        -background gold \
2532        -foreground black \
2533        -anchor w \
2534        -justify left
2535label .vpane.lower.diff.header.path \
2536        -background gold \
2537        -foreground black \
2538        -anchor w \
2539        -justify left
2540pack .vpane.lower.diff.header.status -side left
2541pack .vpane.lower.diff.header.file -side left
2542pack .vpane.lower.diff.header.path -fill x
2543set ctxm .vpane.lower.diff.header.ctxm
2544menu $ctxm -tearoff 0
2545$ctxm add command \
2546        -label [mc Copy] \
2547        -command {
2548                clipboard clear
2549                clipboard append \
2550                        -format STRING \
2551                        -type STRING \
2552                        -- $current_diff_path
2553        }
2554lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
2555bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"
2556
2557# -- Diff Body
2558#
2559frame .vpane.lower.diff.body
2560set ui_diff .vpane.lower.diff.body.t
2561text $ui_diff -background white -foreground black \
2562        -borderwidth 0 \
2563        -width 80 -height 15 -wrap none \
2564        -font font_diff \
2565        -xscrollcommand {.vpane.lower.diff.body.sbx set} \
2566        -yscrollcommand {.vpane.lower.diff.body.sby set} \
2567        -state disabled
2568scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
2569        -command [list $ui_diff xview]
2570scrollbar .vpane.lower.diff.body.sby -orient vertical \
2571        -command [list $ui_diff yview]
2572pack .vpane.lower.diff.body.sbx -side bottom -fill x
2573pack .vpane.lower.diff.body.sby -side right -fill y
2574pack $ui_diff -side left -fill both -expand 1
2575pack .vpane.lower.diff.header -side top -fill x
2576pack .vpane.lower.diff.body -side bottom -fill both -expand 1
2577
2578$ui_diff tag conf d_cr -elide true
2579$ui_diff tag conf d_@ -foreground blue -font font_diffbold
2580$ui_diff tag conf d_+ -foreground {#00a000}
2581$ui_diff tag conf d_- -foreground red
2582
2583$ui_diff tag conf d_++ -foreground {#00a000}
2584$ui_diff tag conf d_-- -foreground red
2585$ui_diff tag conf d_+s \
2586        -foreground {#00a000} \
2587        -background {#e2effa}
2588$ui_diff tag conf d_-s \
2589        -foreground red \
2590        -background {#e2effa}
2591$ui_diff tag conf d_s+ \
2592        -foreground {#00a000} \
2593        -background ivory1
2594$ui_diff tag conf d_s- \
2595        -foreground red \
2596        -background ivory1
2597
2598$ui_diff tag conf d<<<<<<< \
2599        -foreground orange \
2600        -font font_diffbold
2601$ui_diff tag conf d======= \
2602        -foreground orange \
2603        -font font_diffbold
2604$ui_diff tag conf d>>>>>>> \
2605        -foreground orange \
2606        -font font_diffbold
2607
2608$ui_diff tag raise sel
2609
2610# -- Diff Body Context Menu
2611#
2612set ctxm .vpane.lower.diff.body.ctxm
2613menu $ctxm -tearoff 0
2614$ctxm add command \
2615        -label [mc "Apply/Reverse Hunk"] \
2616        -command {apply_hunk $cursorX $cursorY}
2617set ui_diff_applyhunk [$ctxm index last]
2618lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
2619$ctxm add separator
2620$ctxm add command \
2621        -label [mc "Show Less Context"] \
2622        -command show_less_context
2623lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
2624$ctxm add command \
2625        -label [mc "Show More Context"] \
2626        -command show_more_context
2627lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
2628$ctxm add separator
2629$ctxm add command \
2630        -label [mc Refresh] \
2631        -command reshow_diff
2632lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
2633$ctxm add command \
2634        -label [mc Copy] \
2635        -command {tk_textCopy $ui_diff}
2636lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
2637$ctxm add command \
2638        -label [mc "Select All"] \
2639        -command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
2640lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
2641$ctxm add command \
2642        -label [mc "Copy All"] \
2643        -command {
2644                $ui_diff tag add sel 0.0 end
2645                tk_textCopy $ui_diff
2646                $ui_diff tag remove sel 0.0 end
2647        }
2648lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
2649$ctxm add separator
2650$ctxm add command \
2651        -label [mc "Decrease Font Size"] \
2652        -command {incr_font_size font_diff -1}
2653lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
2654$ctxm add command \
2655        -label [mc "Increase Font Size"] \
2656        -command {incr_font_size font_diff 1}
2657lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
2658$ctxm add separator
2659$ctxm add command -label [mc "Options..."] \
2660        -command do_options
2661proc popup_diff_menu {ctxm x y X Y} {
2662        global current_diff_path file_states
2663        set ::cursorX $x
2664        set ::cursorY $y
2665        if {$::ui_index eq $::current_diff_side} {
2666                set l [mc "Unstage Hunk From Commit"]
2667        } else {
2668                set l [mc "Stage Hunk For Commit"]
2669        }
2670        if {$::is_3way_diff
2671                || $current_diff_path eq {}
2672                || ![info exists file_states($current_diff_path)]
2673                || {_O} eq [lindex $file_states($current_diff_path) 0]} {
2674                set s disabled
2675        } else {
2676                set s normal
2677        }
2678        $ctxm entryconf $::ui_diff_applyhunk -state $s -label $l
2679        tk_popup $ctxm $X $Y
2680}
2681bind_button3 $ui_diff [list popup_diff_menu $ctxm %x %y %X %Y]
2682
2683# -- Status Bar
2684#
2685set main_status [::status_bar::new .status]
2686pack .status -anchor w -side bottom -fill x
2687$main_status show [mc "Initializing..."]
2688
2689# -- Load geometry
2690#
2691catch {
2692set gm $repo_config(gui.geometry)
2693wm geometry . [lindex $gm 0]
2694.vpane sash place 0 \
2695        [lindex $gm 1] \
2696        [lindex [.vpane sash coord 0] 1]
2697.vpane.files sash place 0 \
2698        [lindex [.vpane.files sash coord 0] 0] \
2699        [lindex $gm 2]
2700unset gm
2701}
2702
2703# -- Key Bindings
2704#
2705bind $ui_comm <$M1B-Key-Return> {do_commit;break}
2706bind $ui_comm <$M1B-Key-t> {do_add_selection;break}
2707bind $ui_comm <$M1B-Key-T> {do_add_selection;break}
2708bind $ui_comm <$M1B-Key-i> {do_add_all;break}
2709bind $ui_comm <$M1B-Key-I> {do_add_all;break}
2710bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
2711bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
2712bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
2713bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
2714bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
2715bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
2716bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
2717bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
2718bind $ui_comm <$M1B-Key-minus> {show_less_context;break}
2719bind $ui_comm <$M1B-Key-KP_Subtract> {show_less_context;break}
2720bind $ui_comm <$M1B-Key-equal> {show_more_context;break}
2721bind $ui_comm <$M1B-Key-plus> {show_more_context;break}
2722bind $ui_comm <$M1B-Key-KP_Add> {show_more_context;break}
2723
2724bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
2725bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
2726bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
2727bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
2728bind $ui_diff <$M1B-Key-v> {break}
2729bind $ui_diff <$M1B-Key-V> {break}
2730bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
2731bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
2732bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
2733bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
2734bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
2735bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
2736bind $ui_diff <Key-k>         {catch {%W yview scroll -1 units};break}
2737bind $ui_diff <Key-j>         {catch {%W yview scroll  1 units};break}
2738bind $ui_diff <Key-h>         {catch {%W xview scroll -1 units};break}
2739bind $ui_diff <Key-l>         {catch {%W xview scroll  1 units};break}
2740bind $ui_diff <Control-Key-b> {catch {%W yview scroll -1 pages};break}
2741bind $ui_diff <Control-Key-f> {catch {%W yview scroll  1 pages};break}
2742bind $ui_diff <Button-1>   {focus %W}
2743
2744if {[is_enabled branch]} {
2745        bind . <$M1B-Key-n> branch_create::dialog
2746        bind . <$M1B-Key-N> branch_create::dialog
2747        bind . <$M1B-Key-o> branch_checkout::dialog
2748        bind . <$M1B-Key-O> branch_checkout::dialog
2749        bind . <$M1B-Key-m> merge::dialog
2750        bind . <$M1B-Key-M> merge::dialog
2751}
2752if {[is_enabled transport]} {
2753        bind . <$M1B-Key-p> do_push_anywhere
2754        bind . <$M1B-Key-P> do_push_anywhere
2755}
2756
2757bind .   <Key-F5>     do_rescan
2758bind .   <$M1B-Key-r> do_rescan
2759bind .   <$M1B-Key-R> do_rescan
2760bind .   <$M1B-Key-s> do_signoff
2761bind .   <$M1B-Key-S> do_signoff
2762bind .   <$M1B-Key-t> do_add_selection
2763bind .   <$M1B-Key-T> do_add_selection
2764bind .   <$M1B-Key-i> do_add_all
2765bind .   <$M1B-Key-I> do_add_all
2766bind .   <$M1B-Key-minus> {show_less_context;break}
2767bind .   <$M1B-Key-KP_Subtract> {show_less_context;break}
2768bind .   <$M1B-Key-equal> {show_more_context;break}
2769bind .   <$M1B-Key-plus> {show_more_context;break}
2770bind .   <$M1B-Key-KP_Add> {show_more_context;break}
2771bind .   <$M1B-Key-Return> do_commit
2772foreach i [list $ui_index $ui_workdir] {
2773        bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
2774        bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
2775        bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
2776}
2777unset i
2778
2779set file_lists($ui_index) [list]
2780set file_lists($ui_workdir) [list]
2781
2782wm title . "[appname] ([reponame]) [file normalize [file dirname [gitdir]]]"
2783focus -force $ui_comm
2784
2785# -- Warn the user about environmental problems.  Cygwin's Tcl
2786#    does *not* pass its env array onto any processes it spawns.
2787#    This means that git processes get none of our environment.
2788#
2789if {[is_Cygwin]} {
2790        set ignored_env 0
2791        set suggest_user {}
2792        set msg [mc "Possible environment issues exist.
2793
2794The following environment variables are probably
2795going to be ignored by any Git subprocess run
2796by %s:
2797
2798" [appname]]
2799        foreach name [array names env] {
2800                switch -regexp -- $name {
2801                {^GIT_INDEX_FILE$} -
2802                {^GIT_OBJECT_DIRECTORY$} -
2803                {^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
2804                {^GIT_DIFF_OPTS$} -
2805                {^GIT_EXTERNAL_DIFF$} -
2806                {^GIT_PAGER$} -
2807                {^GIT_TRACE$} -
2808                {^GIT_CONFIG$} -
2809                {^GIT_CONFIG_LOCAL$} -
2810                {^GIT_(AUTHOR|COMMITTER)_DATE$} {
2811                        append msg " - $name\n"
2812                        incr ignored_env
2813                }
2814                {^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
2815                        append msg " - $name\n"
2816                        incr ignored_env
2817                        set suggest_user $name
2818                }
2819                }
2820        }
2821        if {$ignored_env > 0} {
2822                append msg [mc "
2823This is due to a known issue with the
2824Tcl binary distributed by Cygwin."]
2825
2826                if {$suggest_user ne {}} {
2827                        append msg [mc "
2828
2829A good replacement for %s
2830is placing values for the user.name and
2831user.email settings into your personal
2832~/.gitconfig file.
2833" $suggest_user]
2834                }
2835                warn_popup $msg
2836        }
2837        unset ignored_env msg suggest_user name
2838}
2839
2840# -- Only initialize complex UI if we are going to stay running.
2841#
2842if {[is_enabled transport]} {
2843        load_all_remotes
2844
2845        set n [.mbar.remote index end]
2846        populate_push_menu
2847        populate_fetch_menu
2848        set n [expr {[.mbar.remote index end] - $n}]
2849        if {$n > 0} {
2850                .mbar.remote insert $n separator
2851        }
2852        unset n
2853}
2854
2855if {[winfo exists $ui_comm]} {
2856        set GITGUI_BCK_exists [load_message GITGUI_BCK]
2857
2858        # -- If both our backup and message files exist use the
2859        #    newer of the two files to initialize the buffer.
2860        #
2861        if {$GITGUI_BCK_exists} {
2862                set m [gitdir GITGUI_MSG]
2863                if {[file isfile $m]} {
2864                        if {[file mtime [gitdir GITGUI_BCK]] > [file mtime $m]} {
2865                                catch {file delete [gitdir GITGUI_MSG]}
2866                        } else {
2867                                $ui_comm delete 0.0 end
2868                                $ui_comm edit reset
2869                                $ui_comm edit modified false
2870                                catch {file delete [gitdir GITGUI_BCK]}
2871                                set GITGUI_BCK_exists 0
2872                        }
2873                }
2874                unset m
2875        }
2876
2877        proc backup_commit_buffer {} {
2878                global ui_comm GITGUI_BCK_exists
2879
2880                set m [$ui_comm edit modified]
2881                if {$m || $GITGUI_BCK_exists} {
2882                        set msg [string trim [$ui_comm get 0.0 end]]
2883                        regsub -all -line {[ \r\t]+$} $msg {} msg
2884
2885                        if {$msg eq {}} {
2886                                if {$GITGUI_BCK_exists} {
2887                                        catch {file delete [gitdir GITGUI_BCK]}
2888                                        set GITGUI_BCK_exists 0
2889                                }
2890                        } elseif {$m} {
2891                                catch {
2892                                        set fd [open [gitdir GITGUI_BCK] w]
2893                                        puts -nonewline $fd $msg
2894                                        close $fd
2895                                        set GITGUI_BCK_exists 1
2896                                }
2897                        }
2898
2899                        $ui_comm edit modified false
2900                }
2901
2902                set ::GITGUI_BCK_i [after 2000 backup_commit_buffer]
2903        }
2904
2905        backup_commit_buffer
2906
2907        # -- If the user has aspell available we can drive it
2908        #    in pipe mode to spellcheck the commit message.
2909        #
2910        set spell_cmd [list |]
2911        set spell_dict [get_config gui.spellingdictionary]
2912        lappend spell_cmd aspell
2913        if {$spell_dict ne {}} {
2914                lappend spell_cmd --master=$spell_dict
2915        }
2916        lappend spell_cmd --mode=none
2917        lappend spell_cmd --encoding=utf-8
2918        lappend spell_cmd pipe
2919        if {$spell_dict eq {none}
2920         || [catch {set spell_fd [open $spell_cmd r+]} spell_err]} {
2921                bind_button3 $ui_comm [list tk_popup $ui_comm_ctxm %X %Y]
2922        } else {
2923                set ui_comm_spell [spellcheck::init \
2924                        $spell_fd \
2925                        $ui_comm \
2926                        $ui_comm_ctxm \
2927                ]
2928        }
2929        unset -nocomplain spell_cmd spell_fd spell_err spell_dict
2930}
2931
2932lock_index begin-read
2933if {![winfo ismapped .]} {
2934        wm deiconify .
2935}
2936after 1 do_rescan
2937if {[is_enabled multicommit]} {
2938        after 1000 hint_gc
2939}