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
  12 set appvers {@@GITGUI_VERSION@@}
  13 set copyright [encoding convertfrom utf-8 {
  14 Copyright © 2006, 2007 Shawn Pearce, et. al.
  15
  16 This program is free software; you can redistribute it and/or modify
  17 it under the terms of the GNU General Public License as published by
  18 the Free Software Foundation; either version 2 of the License, or
  19 (at your option) any later version.
  20
  21 This program is distributed in the hope that it will be useful,
  22 but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 GNU General Public License for more details.
  25
  26 You should have received a copy of the GNU General Public License
  27 along with this program; if not, write to the Free Software
  28 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA}]
  29
  30 ######################################################################
  31 ##
  32 ## Tcl/Tk sanity check
  33
  34 if {[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 $err
  43         exit 1
  44 }
  45
  46 catch {rename send {}} ; # What an evil concept...
  47
  48 ######################################################################
  49 ##
  50 ## locate our library
  51
  52 set oguilib {@@GITGUI_LIBDIR@@}
  53 set oguirel {@@GITGUI_RELATIVE@@}
  54 if {$oguirel eq {1}} {
  55         set oguilib [file dirname [file normalize $argv0]]
  56         if {[file tail $oguilib] eq {git-core}} {
  57                 set oguilib [file dirname $oguilib]
  58         }
  59         set oguilib [file dirname $oguilib]
  60         set oguilib [file join $oguilib share git-gui lib]
  61         set oguimsg [file join $oguilib msgs]
  62 } elseif {[string match @@* $oguirel]} {
  63         set oguilib [file join [file dirname [file normalize $argv0]] lib]
  64         set oguimsg [file join [file dirname [file normalize $argv0]] po]
  65 } else {
  66         set oguimsg [file join $oguilib msgs]
  67 }
  68 unset oguirel
  69
  70 ######################################################################
  71 ##
  72 ## enable verbose loading?
  73
  74 if {![catch {set _verbose $env(GITGUI_VERBOSE)}]} {
  75         unset _verbose
  76         rename auto_load real__auto_load
  77         proc auto_load {name args} {
  78                 puts stderr "auto_load $name"
  79                 return [uplevel 1 real__auto_load $name $args]
  80         }
  81         rename source real__source
  82         proc source {name} {
  83                 puts stderr "source    $name"
  84                 uplevel 1 real__source $name
  85         }
  86 }
  87
  88 ######################################################################
  89 ##
  90 ## Internationalization (i18n) through msgcat and gettext. See
  91 ## http://www.gnu.org/software/gettext/manual/html_node/Tcl.html
  92
  93 package require msgcat
  94
  95 proc _mc_trim {fmt} {
  96         set cmk [string first @@ $fmt]
  97         if {$cmk > 0} {
  98                 return [string range $fmt 0 [expr {$cmk - 1}]]
  99         }
 100         return $fmt
 101 }
 102
 103 proc mc {en_fmt args} {
 104         set fmt [_mc_trim [::msgcat::mc $en_fmt]]
 105         if {[catch {set msg [eval [list format $fmt] $args]} err]} {
 106                 set msg [eval [list format [_mc_trim $en_fmt]] $args]
 107         }
 108         return $msg
 109 }
 110
 111 proc strcat {args} {
 112         return [join $args {}]
 113 }
 114
 115 ::msgcat::mcload $oguimsg
 116 unset oguimsg
 117
 118 ######################################################################
 119 ##
 120 ## read only globals
 121
 122 set _appname {Git Gui}
 123 set _gitdir {}
 124 set _gitexec {}
 125 set _githtmldir {}
 126 set _reponame {}
 127 set _iscygwin {}
 128 set _search_path {}
 129
 130 set _trace [lsearch -exact $argv --trace]
 131 if {$_trace >= 0} {
 132         set argv [lreplace $argv $_trace $_trace]
 133         set _trace 1
 134 } else {
 135         set _trace 0
 136 }
 137
 138 proc appname {} {
 139         global _appname
 140         return $_appname
 141 }
 142
 143 proc gitdir {args} {
 144         global _gitdir
 145         if {$args eq {}} {
 146                 return $_gitdir
 147         }
 148         return [eval [list file join $_gitdir] $args]
 149 }
 150
 151 proc gitexec {args} {
 152         global _gitexec
 153         if {$_gitexec eq {}} {
 154                 if {[catch {set _gitexec [git --exec-path]} err]} {
 155                         error "Git not installed?\n\n$err"
 156                 }
 157                 if {[is_Cygwin]} {
 158                         set _gitexec [exec cygpath \
 159                                 --windows \
 160                                 --absolute \
 161                                 $_gitexec]
 162                 } else {
 163                         set _gitexec [file normalize $_gitexec]
 164                 }
 165         }
 166         if {$args eq {}} {
 167                 return $_gitexec
 168         }
 169         return [eval [list file join $_gitexec] $args]
 170 }
 171
 172 proc githtmldir {args} {
 173         global _githtmldir
 174         if {$_githtmldir eq {}} {
 175                 if {[catch {set _githtmldir [git --html-path]}]} {
 176                         # Git not installed or option not yet supported
 177                         return {}
 178                 }
 179                 if {[is_Cygwin]} {
 180                         set _githtmldir [exec cygpath \
 181                                 --windows \
 182                                 --absolute \
 183                                 $_githtmldir]
 184                 } else {
 185                         set _githtmldir [file normalize $_githtmldir]
 186                 }
 187         }
 188         if {$args eq {}} {
 189                 return $_githtmldir
 190         }
 191         return [eval [list file join $_githtmldir] $args]
 192 }
 193
 194 proc reponame {} {
 195         return $::_reponame
 196 }
 197
 198 proc is_MacOSX {} {
 199         if {[tk windowingsystem] eq {aqua}} {
 200                 return 1
 201         }
 202         return 0
 203 }
 204
 205 proc is_Windows {} {
 206         if {$::tcl_platform(platform) eq {windows}} {
 207                 return 1
 208         }
 209         return 0
 210 }
 211
 212 proc is_Cygwin {} {
 213         global _iscygwin
 214         if {$_iscygwin eq {}} {
 215                 if {$::tcl_platform(platform) eq {windows}} {
 216                         if {[catch {set p [exec cygpath --windir]} err]} {
 217                                 set _iscygwin 0
 218                         } else {
 219                                 set _iscygwin 1
 220                         }
 221                 } else {
 222                         set _iscygwin 0
 223                 }
 224         }
 225         return $_iscygwin
 226 }
 227
 228 proc is_enabled {option} {
 229         global enabled_options
 230         if {[catch {set on $enabled_options($option)}]} {return 0}
 231         return $on
 232 }
 233
 234 proc enable_option {option} {
 235         global enabled_options
 236         set enabled_options($option) 1
 237 }
 238
 239 proc disable_option {option} {
 240         global enabled_options
 241         set enabled_options($option) 0
 242 }
 243
 244 ######################################################################
 245 ##
 246 ## config
 247
 248 proc is_many_config {name} {
 249         switch -glob -- $name {
 250         gui.recentrepo -
 251         remote.*.fetch -
 252         remote.*.push
 253                 {return 1}
 254         *
 255                 {return 0}
 256         }
 257 }
 258
 259 proc is_config_true {name} {
 260         global repo_config
 261         if {[catch {set v $repo_config($name)}]} {
 262                 return 0
 263         } elseif {$v eq {true} || $v eq {1} || $v eq {yes}} {
 264                 return 1
 265         } else {
 266                 return 0
 267         }
 268 }
 269
 270 proc get_config {name} {
 271         global repo_config
 272         if {[catch {set v $repo_config($name)}]} {
 273                 return {}
 274         } else {
 275                 return $v
 276         }
 277 }
 278
 279 ######################################################################
 280 ##
 281 ## handy utils
 282
 283 proc _trace_exec {cmd} {
 284         if {!$::_trace} return
 285         set d {}
 286         foreach v $cmd {
 287                 if {$d ne {}} {
 288                         append d { }
 289                 }
 290                 if {[regexp {[ \t\r\n'"$?*]} $v]} {
 291                         set v [sq $v]
 292                 }
 293                 append d $v
 294         }
 295         puts stderr $d
 296 }
 297
 298 proc _git_cmd {name} {
 299         global _git_cmd_path
 300
 301         if {[catch {set v $_git_cmd_path($name)}]} {
 302                 switch -- $name {
 303                   version   -
 304                 --version   -
 305                 --exec-path { return [list $::_git $name] }
 306                 }
 307
 308                 set p [gitexec git-$name$::_search_exe]
 309                 if {[file exists $p]} {
 310                         set v [list $p]
 311                 } elseif {[is_Windows] && [file exists [gitexec git-$name]]} {
 312                         # Try to determine what sort of magic will make
 313                         # git-$name go and do its thing, because native
 314                         # Tcl on Windows doesn't know it.
 315                         #
 316                         set p [gitexec git-$name]
 317                         set f [open $p r]
 318                         set s [gets $f]
 319                         close $f
 320
 321                         switch -glob -- [lindex $s 0] {
 322                         #!*sh     { set i sh     }
 323                         #!*perl   { set i perl   }
 324                         #!*python { set i python }
 325                         default   { error "git-$name is not supported: $s" }
 326                         }
 327
 328                         upvar #0 _$i interp
 329                         if {![info exists interp]} {
 330                                 set interp [_which $i]
 331                         }
 332                         if {$interp eq {}} {
 333                                 error "git-$name requires $i (not in PATH)"
 334                         }
 335                         set v [concat [list $interp] [lrange $s 1 end] [list $p]]
 336                 } else {
 337                         # Assume it is builtin to git somehow and we
 338                         # aren't actually able to see a file for it.
 339                         #
 340                         set v [list $::_git $name]
 341                 }
 342                 set _git_cmd_path($name) $v
 343         }
 344         return $v
 345 }
 346
 347 proc _which {what args} {
 348         global env _search_exe _search_path
 349
 350         if {$_search_path eq {}} {
 351                 if {[is_Cygwin] && [regexp {^(/|\.:)} $env(PATH)]} {
 352                         set _search_path [split [exec cygpath \
 353                                 --windows \
 354                                 --path \
 355                                 --absolute \
 356                                 $env(PATH)] {;}]
 357                         set _search_exe .exe
 358                 } elseif {[is_Windows]} {
 359                         set gitguidir [file dirname [info script]]
 360                         regsub -all ";" $gitguidir "\\;" gitguidir
 361                         set env(PATH) "$gitguidir;$env(PATH)"
 362                         set _search_path [split $env(PATH) {;}]
 363                         set _search_exe .exe
 364                 } else {
 365                         set _search_path [split $env(PATH) :]
 366                         set _search_exe {}
 367                 }
 368         }
 369
 370         if {[is_Windows] && [lsearch -exact $args -script] >= 0} {
 371                 set suffix {}
 372         } else {
 373                 set suffix $_search_exe
 374         }
 375
 376         foreach p $_search_path {
 377                 set p [file join $p $what$suffix]
 378                 if {[file exists $p]} {
 379                         return [file normalize $p]
 380                 }
 381         }
 382         return {}
 383 }
 384
 385 proc _lappend_nice {cmd_var} {
 386         global _nice
 387         upvar $cmd_var cmd
 388
 389         if {![info exists _nice]} {
 390                 set _nice [_which nice]
 391         }
 392         if {$_nice ne {}} {
 393                 lappend cmd $_nice
 394         }
 395 }
 396
 397 proc git {args} {
 398         set opt [list]
 399
 400         while {1} {
 401                 switch -- [lindex $args 0] {
 402                 --nice {
 403                         _lappend_nice opt
 404                 }
 405
 406                 default {
 407                         break
 408                 }
 409
 410                 }
 411
 412                 set args [lrange $args 1 end]
 413         }
 414
 415         set cmdp [_git_cmd [lindex $args 0]]
 416         set args [lrange $args 1 end]
 417
 418         _trace_exec [concat $opt $cmdp $args]
 419         set result [eval exec $opt $cmdp $args]
 420         if {$::_trace} {
 421                 puts stderr "< $result"
 422         }
 423         return $result
 424 }
 425
 426 proc _open_stdout_stderr {cmd} {
 427         _trace_exec $cmd
 428         if {[catch {
 429                         set fd [open [concat [list | ] $cmd] r]
 430                 } err]} {
 431                 if {   [lindex $cmd end] eq {2>@1}
 432                     && $err eq {can not find channel named "1"}
 433                         } {
 434                         # Older versions of Tcl 8.4 don't have this 2>@1 IO
 435                         # redirect operator.  Fallback to |& cat for those.
 436                         # The command was not actually started, so its safe
 437                         # to try to start it a second time.
 438                         #
 439                         set fd [open [concat \
 440                                 [list | ] \
 441                                 [lrange $cmd 0 end-1] \
 442                                 [list |& cat] \
 443                                 ] r]
 444                 } else {
 445                         error $err
 446                 }
 447         }
 448         fconfigure $fd -eofchar {}
 449         return $fd
 450 }
 451
 452 proc git_read {args} {
 453         set opt [list]
 454
 455         while {1} {
 456                 switch -- [lindex $args 0] {
 457                 --nice {
 458                         _lappend_nice opt
 459                 }
 460
 461                 --stderr {
 462                         lappend args 2>@1
 463                 }
 464
 465                 default {
 466                         break
 467                 }
 468
 469                 }
 470
 471                 set args [lrange $args 1 end]
 472         }
 473
 474         set cmdp [_git_cmd [lindex $args 0]]
 475         set args [lrange $args 1 end]
 476
 477         return [_open_stdout_stderr [concat $opt $cmdp $args]]
 478 }
 479
 480 proc git_write {args} {
 481         set opt [list]
 482
 483         while {1} {
 484                 switch -- [lindex $args 0] {
 485                 --nice {
 486                         _lappend_nice opt
 487                 }
 488
 489                 default {
 490                         break
 491                 }
 492
 493                 }
 494
 495                 set args [lrange $args 1 end]
 496         }
 497
 498         set cmdp [_git_cmd [lindex $args 0]]
 499         set args [lrange $args 1 end]
 500
 501         _trace_exec [concat $opt $cmdp $args]
 502         return [open [concat [list | ] $opt $cmdp $args] w]
 503 }
 504
 505 proc githook_read {hook_name args} {
 506         set pchook [gitdir hooks $hook_name]
 507         lappend args 2>@1
 508
 509         # On Windows [file executable] might lie so we need to ask
 510         # the shell if the hook is executable.  Yes that's annoying.
 511         #
 512         if {[is_Windows]} {
 513                 upvar #0 _sh interp
 514                 if {![info exists interp]} {
 515                         set interp [_which sh]
 516                 }
 517                 if {$interp eq {}} {
 518                         error "hook execution requires sh (not in PATH)"
 519                 }
 520
 521                 set scr {if test -x "$1";then exec "$@";fi}
 522                 set sh_c [list $interp -c $scr $interp $pchook]
 523                 return [_open_stdout_stderr [concat $sh_c $args]]
 524         }
 525
 526         if {[file executable $pchook]} {
 527                 return [_open_stdout_stderr [concat [list $pchook] $args]]
 528         }
 529
 530         return {}
 531 }
 532
 533 proc kill_file_process {fd} {
 534         set process [pid $fd]
 535
 536         catch {
 537                 if {[is_Windows]} {
 538                         # Use a Cygwin-specific flag to allow killing
 539                         # native Windows processes
 540                         exec kill -f $process
 541                 } else {
 542                         exec kill $process
 543                 }
 544         }
 545 }
 546
 547 proc gitattr {path attr default} {
 548         if {[catch {set r [git check-attr $attr -- $path]}]} {
 549                 set r unspecified
 550         } else {
 551                 set r [join [lrange [split $r :] 2 end] :]
 552                 regsub {^ } $r {} r
 553         }
 554         if {$r eq {unspecified}} {
 555                 return $default
 556         }
 557         return $r
 558 }
 559
 560 proc sq {value} {
 561         regsub -all ' $value "'\\''" value
 562         return "'$value'"
 563 }
 564
 565 proc load_current_branch {} {
 566         global current_branch is_detached
 567
 568         set fd [open [gitdir HEAD] r]
 569         if {[gets $fd ref] < 1} {
 570                 set ref {}
 571         }
 572         close $fd
 573
 574         set pfx {ref: refs/heads/}
 575         set len [string length $pfx]
 576         if {[string equal -length $len $pfx $ref]} {
 577                 # We're on a branch.  It might not exist.  But
 578                 # HEAD looks good enough to be a branch.
 579                 #
 580                 set current_branch [string range $ref $len end]
 581                 set is_detached 0
 582         } else {
 583                 # Assume this is a detached head.
 584                 #
 585                 set current_branch HEAD
 586                 set is_detached 1
 587         }
 588 }
 589
 590 auto_load tk_optionMenu
 591 rename tk_optionMenu real__tkOptionMenu
 592 proc tk_optionMenu {w varName args} {
 593         set m [eval real__tkOptionMenu $w $varName $args]
 594         $m configure -font font_ui
 595         $w configure -font font_ui
 596         return $m
 597 }
 598
 599 proc rmsel_tag {text} {
 600         $text tag conf sel \
 601                 -background [$text cget -background] \
 602                 -foreground [$text cget -foreground] \
 603                 -borderwidth 0
 604         $text tag conf in_sel -background lightgray
 605         bind $text <Motion> break
 606         return $text
 607 }
 608
 609 set root_exists 0
 610 bind . <Visibility> {
 611         bind . <Visibility> {}
 612         set root_exists 1
 613 }
 614
 615 if {[is_Windows]} {
 616         wm iconbitmap . -default $oguilib/git-gui.ico
 617         set ::tk::AlwaysShowSelection 1
 618
 619         # Spoof an X11 display for SSH
 620         if {![info exists env(DISPLAY)]} {
 621                 set env(DISPLAY) :9999
 622         }
 623 } else {
 624         catch {
 625                 image create photo gitlogo -width 16 -height 16
 626
 627                 gitlogo put #33CC33 -to  7  0  9  2
 628                 gitlogo put #33CC33 -to  4  2 12  4
 629                 gitlogo put #33CC33 -to  7  4  9  6
 630                 gitlogo put #CC3333 -to  4  6 12  8
 631                 gitlogo put gray26  -to  4  9  6 10
 632                 gitlogo put gray26  -to  3 10  6 12
 633                 gitlogo put gray26  -to  8  9 13 11
 634                 gitlogo put gray26  -to  8 11 10 12
 635                 gitlogo put gray26  -to 11 11 13 14
 636                 gitlogo put gray26  -to  3 12  5 14
 637                 gitlogo put gray26  -to  5 13
 638                 gitlogo put gray26  -to 10 13
 639                 gitlogo put gray26  -to  4 14 12 15
 640                 gitlogo put gray26  -to  5 15 11 16
 641                 gitlogo redither
 642
 643                 wm iconphoto . -default gitlogo
 644         }
 645 }
 646
 647 ######################################################################
 648 ##
 649 ## config defaults
 650
 651 set cursor_ptr arrow
 652 font create font_diff -family Courier -size 10
 653 font create font_ui
 654 catch {
 655         label .dummy
 656         eval font configure font_ui [font actual [.dummy cget -font]]
 657         destroy .dummy
 658 }
 659
 660 font create font_uiitalic
 661 font create font_uibold
 662 font create font_diffbold
 663 font create font_diffitalic
 664
 665 foreach class {Button Checkbutton Entry Label
 666                 Labelframe Listbox Message
 667                 Radiobutton Spinbox Text} {
 668         option add *$class.font font_ui
 669 }
 670 if {![is_MacOSX]} {
 671         option add *Menu.font font_ui
 672 }
 673 unset class
 674
 675 if {[is_Windows] || [is_MacOSX]} {
 676         option add *Menu.tearOff 0
 677 }
 678
 679 if {[is_MacOSX]} {
 680         set M1B M1
 681         set M1T Cmd
 682 } else {
 683         set M1B Control
 684         set M1T Ctrl
 685 }
 686
 687 proc bind_button3 {w cmd} {
 688         bind $w <Any-Button-3> $cmd
 689         if {[is_MacOSX]} {
 690                 # Mac OS X sends Button-2 on right click through three-button mouse,
 691                 # or through trackpad right-clicking (two-finger touch + click).
 692                 bind $w <Any-Button-2> $cmd
 693                 bind $w <Control-Button-1> $cmd
 694         }
 695 }
 696
 697 proc apply_config {} {
 698         global repo_config font_descs
 699
 700         foreach option $font_descs {
 701                 set name [lindex $option 0]
 702                 set font [lindex $option 1]
 703                 if {[catch {
 704                         set need_weight 1
 705                         foreach {cn cv} $repo_config(gui.$name) {
 706                                 if {$cn eq {-weight}} {
 707                                         set need_weight 0
 708                                 }
 709                                 font configure $font $cn $cv
 710                         }
 711                         if {$need_weight} {
 712                                 font configure $font -weight normal
 713                         }
 714                         } err]} {
 715                         error_popup [strcat [mc "Invalid font specified in %s:" "gui.$name"] "\n\n$err"]
 716                 }
 717                 foreach {cn cv} [font configure $font] {
 718                         font configure ${font}bold $cn $cv
 719                         font configure ${font}italic $cn $cv
 720                 }
 721                 font configure ${font}bold -weight bold
 722                 font configure ${font}italic -slant italic
 723         }
 724 }
 725
 726 set default_config(branch.autosetupmerge) true
 727 set default_config(merge.tool) {}
 728 set default_config(mergetool.keepbackup) true
 729 set default_config(merge.diffstat) true
 730 set default_config(merge.summary) false
 731 set default_config(merge.verbosity) 2
 732 set default_config(user.name) {}
 733 set default_config(user.email) {}
 734
 735 set default_config(gui.encoding) [encoding system]
 736 set default_config(gui.matchtrackingbranch) false
 737 set default_config(gui.pruneduringfetch) false
 738 set default_config(gui.trustmtime) false
 739 set default_config(gui.fastcopyblame) false
 740 set default_config(gui.copyblamethreshold) 40
 741 set default_config(gui.blamehistoryctx) 7
 742 set default_config(gui.diffcontext) 5
 743 set default_config(gui.commitmsgwidth) 75
 744 set default_config(gui.newbranchtemplate) {}
 745 set default_config(gui.spellingdictionary) {}
 746 set default_config(gui.fontui) [font configure font_ui]
 747 set default_config(gui.fontdiff) [font configure font_diff]
 748 # TODO: this option should be added to the git-config documentation
 749 set default_config(gui.maxfilesdisplayed) 5000
 750 set font_descs {
 751         {fontui   font_ui   {mc "Main Font"}}
 752         {fontdiff font_diff {mc "Diff/Console Font"}}
 753 }
 754
 755 ######################################################################
 756 ##
 757 ## find git
 758
 759 set _git  [_which git]
 760 if {$_git eq {}} {
 761         catch {wm withdraw .}
 762         tk_messageBox \
 763                 -icon error \
 764                 -type ok \
 765                 -title [mc "git-gui: fatal error"] \
 766                 -message [mc "Cannot find git in PATH."]
 767         exit 1
 768 }
 769
 770 ######################################################################
 771 ##
 772 ## version check
 773
 774 if {[catch {set _git_version [git --version]} err]} {
 775         catch {wm withdraw .}
 776         tk_messageBox \
 777                 -icon error \
 778                 -type ok \
 779                 -title [mc "git-gui: fatal error"] \
 780                 -message "Cannot determine Git version:
 781
 782 $err
 783
 784 [appname] requires Git 1.5.0 or later."
 785         exit 1
 786 }
 787 if {![regsub {^git version } $_git_version {} _git_version]} {
 788         catch {wm withdraw .}
 789         tk_messageBox \
 790                 -icon error \
 791                 -type ok \
 792                 -title [mc "git-gui: fatal error"] \
 793                 -message [strcat [mc "Cannot parse Git version string:"] "\n\n$_git_version"]
 794         exit 1
 795 }
 796
 797 set _real_git_version $_git_version
 798 regsub -- {[\-\.]dirty$} $_git_version {} _git_version
 799 regsub {\.[0-9]+\.g[0-9a-f]+$} $_git_version {} _git_version
 800 regsub {\.[a-zA-Z]+\.?[0-9]+$} $_git_version {} _git_version
 801 regsub {\.GIT$} $_git_version {} _git_version
 802 regsub {\.[a-zA-Z]+\.?[0-9]+$} $_git_version {} _git_version
 803
 804 if {![regexp {^[1-9]+(\.[0-9]+)+$} $_git_version]} {
 805         catch {wm withdraw .}
 806         if {[tk_messageBox \
 807                 -icon warning \
 808                 -type yesno \
 809                 -default no \
 810                 -title "[appname]: warning" \
 811                  -message [mc "Git version cannot be determined.
 812
 813 %s claims it is version '%s'.
 814
 815 %s requires at least Git 1.5.0 or later.
 816
 817 Assume '%s' is version 1.5.0?
 818 " $_git $_real_git_version [appname] $_real_git_version]] eq {yes}} {
 819                 set _git_version 1.5.0
 820         } else {
 821                 exit 1
 822         }
 823 }
 824 unset _real_git_version
 825
 826 proc git-version {args} {
 827         global _git_version
 828
 829         switch [llength $args] {
 830         0 {
 831                 return $_git_version
 832         }
 833
 834         2 {
 835                 set op [lindex $args 0]
 836                 set vr [lindex $args 1]
 837                 set cm [package vcompare $_git_version $vr]
 838                 return [expr $cm $op 0]
 839         }
 840
 841         4 {
 842                 set type [lindex $args 0]
 843                 set name [lindex $args 1]
 844                 set parm [lindex $args 2]
 845                 set body [lindex $args 3]
 846
 847                 if {($type ne {proc} && $type ne {method})} {
 848                         error "Invalid arguments to git-version"
 849                 }
 850                 if {[llength $body] < 2 || [lindex $body end-1] ne {default}} {
 851                         error "Last arm of $type $name must be default"
 852                 }
 853
 854                 foreach {op vr cb} [lrange $body 0 end-2] {
 855                         if {[git-version $op $vr]} {
 856                                 return [uplevel [list $type $name $parm $cb]]
 857                         }
 858                 }
 859
 860                 return [uplevel [list $type $name $parm [lindex $body end]]]
 861         }
 862
 863         default {
 864                 error "git-version >= x"
 865         }
 866
 867         }
 868 }
 869
 870 if {[git-version < 1.5]} {
 871         catch {wm withdraw .}
 872         tk_messageBox \
 873                 -icon error \
 874                 -type ok \
 875                 -title [mc "git-gui: fatal error"] \
 876                 -message "[appname] requires Git 1.5.0 or later.
 877
 878 You are using [git-version]:
 879
 880 [git --version]"
 881         exit 1
 882 }
 883
 884 ######################################################################
 885 ##
 886 ## configure our library
 887
 888 set idx [file join $oguilib tclIndex]
 889 if {[catch {set fd [open $idx r]} err]} {
 890         catch {wm withdraw .}
 891         tk_messageBox \
 892                 -icon error \
 893                 -type ok \
 894                 -title [mc "git-gui: fatal error"] \
 895                 -message $err
 896         exit 1
 897 }
 898 if {[gets $fd] eq {# Autogenerated by git-gui Makefile}} {
 899         set idx [list]
 900         while {[gets $fd n] >= 0} {
 901                 if {$n ne {} && ![string match #* $n]} {
 902                         lappend idx $n
 903                 }
 904         }
 905 } else {
 906         set idx {}
 907 }
 908 close $fd
 909
 910 if {$idx ne {}} {
 911         set loaded [list]
 912         foreach p $idx {
 913                 if {[lsearch -exact $loaded $p] >= 0} continue
 914                 source [file join $oguilib $p]
 915                 lappend loaded $p
 916         }
 917         unset loaded p
 918 } else {
 919         set auto_path [concat [list $oguilib] $auto_path]
 920 }
 921 unset -nocomplain idx fd
 922
 923 ######################################################################
 924 ##
 925 ## config file parsing
 926
 927 git-version proc _parse_config {arr_name args} {
 928         >= 1.5.3 {
 929                 upvar $arr_name arr
 930                 array unset arr
 931                 set buf {}
 932                 catch {
 933                         set fd_rc [eval \
 934                                 [list git_read config] \
 935                                 $args \
 936                                 [list --null --list]]
 937                         fconfigure $fd_rc -translation binary
 938                         set buf [read $fd_rc]
 939                         close $fd_rc
 940                 }
 941                 foreach line [split $buf "\0"] {
 942                         if {[regexp {^([^\n]+)\n(.*)$} $line line name value]} {
 943                                 if {[is_many_config $name]} {
 944                                         lappend arr($name) $value
 945                                 } else {
 946                                         set arr($name) $value
 947                                 }
 948                         }
 949                 }
 950         }
 951         default {
 952                 upvar $arr_name arr
 953                 array unset arr
 954                 catch {
 955                         set fd_rc [eval [list git_read config --list] $args]
 956                         while {[gets $fd_rc line] >= 0} {
 957                                 if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
 958                                         if {[is_many_config $name]} {
 959                                                 lappend arr($name) $value
 960                                         } else {
 961                                                 set arr($name) $value
 962                                         }
 963                                 }
 964                         }
 965                         close $fd_rc
 966                 }
 967         }
 968 }
 969
 970 proc load_config {include_global} {
 971         global repo_config global_config system_config default_config
 972
 973         if {$include_global} {
 974                 _parse_config system_config --system
 975                 _parse_config global_config --global
 976         }
 977         _parse_config repo_config
 978
 979         foreach name [array names default_config] {
 980                 if {[catch {set v $system_config($name)}]} {
 981                         set system_config($name) $default_config($name)
 982                 }
 983         }
 984         foreach name [array names system_config] {
 985                 if {[catch {set v $global_config($name)}]} {
 986                         set global_config($name) $system_config($name)
 987                 }
 988                 if {[catch {set v $repo_config($name)}]} {
 989                         set repo_config($name) $system_config($name)
 990                 }
 991         }
 992 }
 993
 994 ######################################################################
 995 ##
 996 ## feature option selection
 997
 998 if {[regexp {^git-(.+)$} [file tail $argv0] _junk subcommand]} {
 999         unset _junk
1000 } else {
1001         set subcommand gui
1002 }
1003 if {$subcommand eq {gui.sh}} {
1004         set subcommand gui
1005 }
1006 if {$subcommand eq {gui} && [llength $argv] > 0} {
1007         set subcommand [lindex $argv 0]
1008         set argv [lrange $argv 1 end]
1009 }
1010
1011 enable_option multicommit
1012 enable_option branch
1013 enable_option transport
1014 disable_option bare
1015
1016 switch -- $subcommand {
1017 browser -
1018 blame {
1019         enable_option bare
1020
1021         disable_option multicommit
1022         disable_option branch
1023         disable_option transport
1024 }
1025 citool {
1026         enable_option singlecommit
1027         enable_option retcode
1028
1029         disable_option multicommit
1030         disable_option branch
1031         disable_option transport
1032
1033         while {[llength $argv] > 0} {
1034                 set a [lindex $argv 0]
1035                 switch -- $a {
1036                 --amend {
1037                         enable_option initialamend
1038                 }
1039                 --nocommit {
1040                         enable_option nocommit
1041                         enable_option nocommitmsg
1042                 }
1043                 --commitmsg {
1044                         disable_option nocommitmsg
1045                 }
1046                 default {
1047                         break
1048                 }
1049                 }
1050
1051                 set argv [lrange $argv 1 end]
1052         }
1053 }
1054 }
1055
1056 ######################################################################
1057 ##
1058 ## execution environment
1059
1060 set have_tk85 [expr {[package vcompare $tk_version "8.5"] >= 0}]
1061
1062 # Suggest our implementation of askpass, if none is set
1063 if {![info exists env(SSH_ASKPASS)]} {
1064         set env(SSH_ASKPASS) [gitexec git-gui--askpass]
1065 }
1066
1067 ######################################################################
1068 ##
1069 ## repository setup
1070
1071 set picked 0
1072 if {[catch {
1073                 set _gitdir $env(GIT_DIR)
1074                 set _prefix {}
1075                 }]
1076         && [catch {
1077                 set _gitdir [git rev-parse --git-dir]
1078                 set _prefix [git rev-parse --show-prefix]
1079         } err]} {
1080         load_config 1
1081         apply_config
1082         choose_repository::pick
1083         set picked 1
1084 }
1085 if {![file isdirectory $_gitdir] && [is_Cygwin]} {
1086         catch {set _gitdir [exec cygpath --windows $_gitdir]}
1087 }
1088 if {![file isdirectory $_gitdir]} {
1089         catch {wm withdraw .}
1090         error_popup [strcat [mc "Git directory not found:"] "\n\n$_gitdir"]
1091         exit 1
1092 }
1093 if {$_prefix ne {}} {
1094         regsub -all {[^/]+/} $_prefix ../ cdup
1095         if {[catch {cd $cdup} err]} {
1096                 catch {wm withdraw .}
1097                 error_popup [strcat [mc "Cannot move to top of working directory:"] "\n\n$err"]
1098                 exit 1
1099         }
1100         unset cdup
1101 } elseif {![is_enabled bare]} {
1102         if {[lindex [file split $_gitdir] end] ne {.git}} {
1103                 catch {wm withdraw .}
1104                 error_popup [strcat [mc "Cannot use funny .git directory:"] "\n\n$_gitdir"]
1105                 exit 1
1106         }
1107         if {[catch {cd [file dirname $_gitdir]} err]} {
1108                 catch {wm withdraw .}
1109                 error_popup [strcat [mc "No working directory"] " [file dirname $_gitdir]:\n\n$err"]
1110                 exit 1
1111         }
1112 }
1113 set _reponame [file split [file normalize $_gitdir]]
1114 if {[lindex $_reponame end] eq {.git}} {
1115         set _reponame [lindex $_reponame end-1]
1116 } else {
1117         set _reponame [lindex $_reponame end]
1118 }
1119
1120 ######################################################################
1121 ##
1122 ## global init
1123
1124 set current_diff_path {}
1125 set current_diff_side {}
1126 set diff_actions [list]
1127
1128 set HEAD {}
1129 set PARENT {}
1130 set MERGE_HEAD [list]
1131 set commit_type {}
1132 set empty_tree {}
1133 set current_branch {}
1134 set is_detached 0
1135 set current_diff_path {}
1136 set is_3way_diff 0
1137 set is_submodule_diff 0
1138 set is_conflict_diff 0
1139 set selected_commit_type new
1140 set diff_empty_count 0
1141
1142 set nullid "0000000000000000000000000000000000000000"
1143 set nullid2 "0000000000000000000000000000000000000001"
1144
1145 ######################################################################
1146 ##
1147 ## task management
1148
1149 set rescan_active 0
1150 set diff_active 0
1151 set last_clicked {}
1152
1153 set disable_on_lock [list]
1154 set index_lock_type none
1155
1156 proc lock_index {type} {
1157         global index_lock_type disable_on_lock
1158
1159         if {$index_lock_type eq {none}} {
1160                 set index_lock_type $type
1161                 foreach w $disable_on_lock {
1162                         uplevel #0 $w disabled
1163                 }
1164                 return 1
1165         } elseif {$index_lock_type eq "begin-$type"} {
1166                 set index_lock_type $type
1167                 return 1
1168         }
1169         return 0
1170 }
1171
1172 proc unlock_index {} {
1173         global index_lock_type disable_on_lock
1174
1175         set index_lock_type none
1176         foreach w $disable_on_lock {
1177                 uplevel #0 $w normal
1178         }
1179 }
1180
1181 ######################################################################
1182 ##
1183 ## status
1184
1185 proc repository_state {ctvar hdvar mhvar} {
1186         global current_branch
1187         upvar $ctvar ct $hdvar hd $mhvar mh
1188
1189         set mh [list]
1190
1191         load_current_branch
1192         if {[catch {set hd [git rev-parse --verify HEAD]}]} {
1193                 set hd {}
1194                 set ct initial
1195                 return
1196         }
1197
1198         set merge_head [gitdir MERGE_HEAD]
1199         if {[file exists $merge_head]} {
1200                 set ct merge
1201                 set fd_mh [open $merge_head r]
1202                 while {[gets $fd_mh line] >= 0} {
1203                         lappend mh $line
1204                 }
1205                 close $fd_mh
1206                 return
1207         }
1208
1209         set ct normal
1210 }
1211
1212 proc PARENT {} {
1213         global PARENT empty_tree
1214
1215         set p [lindex $PARENT 0]
1216         if {$p ne {}} {
1217                 return $p
1218         }
1219         if {$empty_tree eq {}} {
1220                 set empty_tree [git mktree << {}]
1221         }
1222         return $empty_tree
1223 }
1224
1225 proc force_amend {} {
1226         global selected_commit_type
1227         global HEAD PARENT MERGE_HEAD commit_type
1228
1229         repository_state newType newHEAD newMERGE_HEAD
1230         set HEAD $newHEAD
1231         set PARENT $newHEAD
1232         set MERGE_HEAD $newMERGE_HEAD
1233         set commit_type $newType
1234
1235         set selected_commit_type amend
1236         do_select_commit_type
1237 }
1238
1239 proc rescan {after {honor_trustmtime 1}} {
1240         global HEAD PARENT MERGE_HEAD commit_type
1241         global ui_index ui_workdir ui_comm
1242         global rescan_active file_states
1243         global repo_config
1244
1245         if {$rescan_active > 0 || ![lock_index read]} return
1246
1247         repository_state newType newHEAD newMERGE_HEAD
1248         if {[string match amend* $commit_type]
1249                 && $newType eq {normal}
1250                 && $newHEAD eq $HEAD} {
1251         } else {
1252                 set HEAD $newHEAD
1253                 set PARENT $newHEAD
1254                 set MERGE_HEAD $newMERGE_HEAD
1255                 set commit_type $newType
1256         }
1257
1258         array unset file_states
1259
1260         if {!$::GITGUI_BCK_exists &&
1261                 (![$ui_comm edit modified]
1262                 || [string trim [$ui_comm get 0.0 end]] eq {})} {
1263                 if {[string match amend* $commit_type]} {
1264                 } elseif {[load_message GITGUI_MSG]} {
1265                 } elseif {[run_prepare_commit_msg_hook]} {
1266                 } elseif {[load_message MERGE_MSG]} {
1267                 } elseif {[load_message SQUASH_MSG]} {
1268                 }
1269                 $ui_comm edit reset
1270                 $ui_comm edit modified false
1271         }
1272
1273         if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
1274                 rescan_stage2 {} $after
1275         } else {
1276                 set rescan_active 1
1277                 ui_status [mc "Refreshing file status..."]
1278                 set fd_rf [git_read update-index \
1279                         -q \
1280                         --unmerged \
1281                         --ignore-missing \
1282                         --refresh \
1283                         ]
1284                 fconfigure $fd_rf -blocking 0 -translation binary
1285                 fileevent $fd_rf readable \
1286                         [list rescan_stage2 $fd_rf $after]
1287         }
1288 }
1289
1290 if {[is_Cygwin]} {
1291         set is_git_info_exclude {}
1292         proc have_info_exclude {} {
1293                 global is_git_info_exclude
1294
1295                 if {$is_git_info_exclude eq {}} {
1296                         if {[catch {exec test -f [gitdir info exclude]}]} {
1297                                 set is_git_info_exclude 0
1298                         } else {
1299                                 set is_git_info_exclude 1
1300                         }
1301                 }
1302                 return $is_git_info_exclude
1303         }
1304 } else {
1305         proc have_info_exclude {} {
1306                 return [file readable [gitdir info exclude]]
1307         }
1308 }
1309
1310 proc rescan_stage2 {fd after} {
1311         global rescan_active buf_rdi buf_rdf buf_rlo
1312
1313         if {$fd ne {}} {
1314                 read $fd
1315                 if {![eof $fd]} return
1316                 close $fd
1317         }
1318
1319         set ls_others [list --exclude-per-directory=.gitignore]
1320         if {[have_info_exclude]} {
1321                 lappend ls_others "--exclude-from=[gitdir info exclude]"
1322         }
1323         set user_exclude [get_config core.excludesfile]
1324         if {$user_exclude ne {} && [file readable $user_exclude]} {
1325                 lappend ls_others "--exclude-from=$user_exclude"
1326         }
1327
1328         set buf_rdi {}
1329         set buf_rdf {}
1330         set buf_rlo {}
1331
1332         set rescan_active 3
1333         ui_status [mc "Scanning for modified files ..."]
1334         set fd_di [git_read diff-index --cached -z [PARENT]]
1335         set fd_df [git_read diff-files -z]
1336         set fd_lo [eval git_read ls-files --others -z $ls_others]
1337
1338         fconfigure $fd_di -blocking 0 -translation binary -encoding binary
1339         fconfigure $fd_df -blocking 0 -translation binary -encoding binary
1340         fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
1341         fileevent $fd_di readable [list read_diff_index $fd_di $after]
1342         fileevent $fd_df readable [list read_diff_files $fd_df $after]
1343         fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
1344 }
1345
1346 proc load_message {file} {
1347         global ui_comm
1348
1349         set f [gitdir $file]
1350         if {[file isfile $f]} {
1351                 if {[catch {set fd [open $f r]}]} {
1352                         return 0
1353                 }
1354                 fconfigure $fd -eofchar {}
1355                 set content [string trim [read $fd]]
1356                 close $fd
1357                 regsub -all -line {[ \r\t]+$} $content {} content
1358                 $ui_comm delete 0.0 end
1359                 $ui_comm insert end $content
1360                 return 1
1361         }
1362         return 0
1363 }
1364
1365 proc run_prepare_commit_msg_hook {} {
1366         global pch_error
1367
1368         # prepare-commit-msg requires PREPARE_COMMIT_MSG exist.  From git-gui
1369         # it will be .git/MERGE_MSG (merge), .git/SQUASH_MSG (squash), or an
1370         # empty file but existant file.
1371
1372         set fd_pcm [open [gitdir PREPARE_COMMIT_MSG] a]
1373
1374         if {[file isfile [gitdir MERGE_MSG]]} {
1375                 set pcm_source "merge"
1376                 set fd_mm [open [gitdir MERGE_MSG] r]
1377                 puts -nonewline $fd_pcm [read $fd_mm]
1378                 close $fd_mm
1379         } elseif {[file isfile [gitdir SQUASH_MSG]]} {
1380                 set pcm_source "squash"
1381                 set fd_sm [open [gitdir SQUASH_MSG] r]
1382                 puts -nonewline $fd_pcm [read $fd_sm]
1383                 close $fd_sm
1384         } else {
1385                 set pcm_source ""
1386         }
1387
1388         close $fd_pcm
1389
1390         set fd_ph [githook_read prepare-commit-msg \
1391                         [gitdir PREPARE_COMMIT_MSG] $pcm_source]
1392         if {$fd_ph eq {}} {
1393                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1394                 return 0;
1395         }
1396
1397         ui_status [mc "Calling prepare-commit-msg hook..."]
1398         set pch_error {}
1399
1400         fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
1401         fileevent $fd_ph readable \
1402                 [list prepare_commit_msg_hook_wait $fd_ph]
1403
1404         return 1;
1405 }
1406
1407 proc prepare_commit_msg_hook_wait {fd_ph} {
1408         global pch_error
1409
1410         append pch_error [read $fd_ph]
1411         fconfigure $fd_ph -blocking 1
1412         if {[eof $fd_ph]} {
1413                 if {[catch {close $fd_ph}]} {
1414                         ui_status [mc "Commit declined by prepare-commit-msg hook."]
1415                         hook_failed_popup prepare-commit-msg $pch_error
1416                         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1417                         exit 1
1418                 } else {
1419                         load_message PREPARE_COMMIT_MSG
1420                 }
1421                 set pch_error {}
1422                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1423                 return
1424         }
1425         fconfigure $fd_ph -blocking 0
1426         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1427 }
1428
1429 proc read_diff_index {fd after} {
1430         global buf_rdi
1431
1432         append buf_rdi [read $fd]
1433         set c 0
1434         set n [string length $buf_rdi]
1435         while {$c < $n} {
1436                 set z1 [string first "\0" $buf_rdi $c]
1437                 if {$z1 == -1} break
1438                 incr z1
1439                 set z2 [string first "\0" $buf_rdi $z1]
1440                 if {$z2 == -1} break
1441
1442                 incr c
1443                 set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
1444                 set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
1445                 merge_state \
1446                         [encoding convertfrom $p] \
1447                         [lindex $i 4]? \
1448                         [list [lindex $i 0] [lindex $i 2]] \
1449                         [list]
1450                 set c $z2
1451                 incr c
1452         }
1453         if {$c < $n} {
1454                 set buf_rdi [string range $buf_rdi $c end]
1455         } else {
1456                 set buf_rdi {}
1457         }
1458
1459         rescan_done $fd buf_rdi $after
1460 }
1461
1462 proc read_diff_files {fd after} {
1463         global buf_rdf
1464
1465         append buf_rdf [read $fd]
1466         set c 0
1467         set n [string length $buf_rdf]
1468         while {$c < $n} {
1469                 set z1 [string first "\0" $buf_rdf $c]
1470                 if {$z1 == -1} break
1471                 incr z1
1472                 set z2 [string first "\0" $buf_rdf $z1]
1473                 if {$z2 == -1} break
1474
1475                 incr c
1476                 set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
1477                 set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
1478                 merge_state \
1479                         [encoding convertfrom $p] \
1480                         ?[lindex $i 4] \
1481                         [list] \
1482                         [list [lindex $i 0] [lindex $i 2]]
1483                 set c $z2
1484                 incr c
1485         }
1486         if {$c < $n} {
1487                 set buf_rdf [string range $buf_rdf $c end]
1488         } else {
1489                 set buf_rdf {}
1490         }
1491
1492         rescan_done $fd buf_rdf $after
1493 }
1494
1495 proc read_ls_others {fd after} {
1496         global buf_rlo
1497
1498         append buf_rlo [read $fd]
1499         set pck [split $buf_rlo "\0"]
1500         set buf_rlo [lindex $pck end]
1501         foreach p [lrange $pck 0 end-1] {
1502                 set p [encoding convertfrom $p]
1503                 if {[string index $p end] eq {/}} {
1504                         set p [string range $p 0 end-1]
1505                 }
1506                 merge_state $p ?O
1507         }
1508         rescan_done $fd buf_rlo $after
1509 }
1510
1511 proc rescan_done {fd buf after} {
1512         global rescan_active current_diff_path
1513         global file_states repo_config
1514         upvar $buf to_clear
1515
1516         if {![eof $fd]} return
1517         set to_clear {}
1518         close $fd
1519         if {[incr rescan_active -1] > 0} return
1520
1521         prune_selection
1522         unlock_index
1523         display_all_files
1524         if {$current_diff_path ne {}} { reshow_diff $after }
1525         if {$current_diff_path eq {}} { select_first_diff $after }
1526 }
1527
1528 proc prune_selection {} {
1529         global file_states selected_paths
1530
1531         foreach path [array names selected_paths] {
1532                 if {[catch {set still_here $file_states($path)}]} {
1533                         unset selected_paths($path)
1534                 }
1535         }
1536 }
1537
1538 ######################################################################
1539 ##
1540 ## ui helpers
1541
1542 proc mapicon {w state path} {
1543         global all_icons
1544
1545         if {[catch {set r $all_icons($state$w)}]} {
1546                 puts "error: no icon for $w state={$state} $path"
1547                 return file_plain
1548         }
1549         return $r
1550 }
1551
1552 proc mapdesc {state path} {
1553         global all_descs
1554
1555         if {[catch {set r $all_descs($state)}]} {
1556                 puts "error: no desc for state={$state} $path"
1557                 return $state
1558         }
1559         return $r
1560 }
1561
1562 proc ui_status {msg} {
1563         global main_status
1564         if {[info exists main_status]} {
1565                 $main_status show $msg
1566         }
1567 }
1568
1569 proc ui_ready {{test {}}} {
1570         global main_status
1571         if {[info exists main_status]} {
1572                 $main_status show [mc "Ready."] $test
1573         }
1574 }
1575
1576 proc escape_path {path} {
1577         regsub -all {\\} $path "\\\\" path
1578         regsub -all "\n" $path "\\n" path
1579         return $path
1580 }
1581
1582 proc short_path {path} {
1583         return [escape_path [lindex [file split $path] end]]
1584 }
1585
1586 set next_icon_id 0
1587 set null_sha1 [string repeat 0 40]
1588
1589 proc merge_state {path new_state {head_info {}} {index_info {}}} {
1590         global file_states next_icon_id null_sha1
1591
1592         set s0 [string index $new_state 0]
1593         set s1 [string index $new_state 1]
1594
1595         if {[catch {set info $file_states($path)}]} {
1596                 set state __
1597                 set icon n[incr next_icon_id]
1598         } else {
1599                 set state [lindex $info 0]
1600                 set icon [lindex $info 1]
1601                 if {$head_info eq {}}  {set head_info  [lindex $info 2]}
1602                 if {$index_info eq {}} {set index_info [lindex $info 3]}
1603         }
1604
1605         if     {$s0 eq {?}} {set s0 [string index $state 0]} \
1606         elseif {$s0 eq {_}} {set s0 _}
1607
1608         if     {$s1 eq {?}} {set s1 [string index $state 1]} \
1609         elseif {$s1 eq {_}} {set s1 _}
1610
1611         if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
1612                 set head_info [list 0 $null_sha1]
1613         } elseif {$s0 ne {_} && [string index $state 0] eq {_}
1614                 && $head_info eq {}} {
1615                 set head_info $index_info
1616         }
1617
1618         set file_states($path) [list $s0$s1 $icon \
1619                 $head_info $index_info \
1620                 ]
1621         return $state
1622 }
1623
1624 proc display_file_helper {w path icon_name old_m new_m} {
1625         global file_lists
1626
1627         if {$new_m eq {_}} {
1628                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1629                 if {$lno >= 0} {
1630                         set file_lists($w) [lreplace $file_lists($w) $lno $lno]
1631                         incr lno
1632                         $w conf -state normal
1633                         $w delete $lno.0 [expr {$lno + 1}].0
1634                         $w conf -state disabled
1635                 }
1636         } elseif {$old_m eq {_} && $new_m ne {_}} {
1637                 lappend file_lists($w) $path
1638                 set file_lists($w) [lsort -unique $file_lists($w)]
1639                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1640                 incr lno
1641                 $w conf -state normal
1642                 $w image create $lno.0 \
1643                         -align center -padx 5 -pady 1 \
1644                         -name $icon_name \
1645                         -image [mapicon $w $new_m $path]
1646                 $w insert $lno.1 "[escape_path $path]\n"
1647                 $w conf -state disabled
1648         } elseif {$old_m ne $new_m} {
1649                 $w conf -state normal
1650                 $w image conf $icon_name -image [mapicon $w $new_m $path]
1651                 $w conf -state disabled
1652         }
1653 }
1654
1655 proc display_file {path state} {
1656         global file_states selected_paths
1657         global ui_index ui_workdir
1658
1659         set old_m [merge_state $path $state]
1660         set s $file_states($path)
1661         set new_m [lindex $s 0]
1662         set icon_name [lindex $s 1]
1663
1664         set o [string index $old_m 0]
1665         set n [string index $new_m 0]
1666         if {$o eq {U}} {
1667                 set o _
1668         }
1669         if {$n eq {U}} {
1670                 set n _
1671         }
1672         display_file_helper     $ui_index $path $icon_name $o $n
1673
1674         if {[string index $old_m 0] eq {U}} {
1675                 set o U
1676         } else {
1677                 set o [string index $old_m 1]
1678         }
1679         if {[string index $new_m 0] eq {U}} {
1680                 set n U
1681         } else {
1682                 set n [string index $new_m 1]
1683         }
1684         display_file_helper     $ui_workdir $path $icon_name $o $n
1685
1686         if {$new_m eq {__}} {
1687                 unset file_states($path)
1688                 catch {unset selected_paths($path)}
1689         }
1690 }
1691
1692 proc display_all_files_helper {w path icon_name m} {
1693         global file_lists
1694
1695         lappend file_lists($w) $path
1696         set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
1697         $w image create end \
1698                 -align center -padx 5 -pady 1 \
1699                 -name $icon_name \
1700                 -image [mapicon $w $m $path]
1701         $w insert end "[escape_path $path]\n"
1702 }
1703
1704 set files_warning 0
1705 proc display_all_files {} {
1706         global ui_index ui_workdir
1707         global file_states file_lists
1708         global last_clicked
1709         global files_warning
1710
1711         $ui_index conf -state normal
1712         $ui_workdir conf -state normal
1713
1714         $ui_index delete 0.0 end
1715         $ui_workdir delete 0.0 end
1716         set last_clicked {}
1717
1718         set file_lists($ui_index) [list]
1719         set file_lists($ui_workdir) [list]
1720
1721         set to_display [lsort [array names file_states]]
1722         set display_limit [get_config gui.maxfilesdisplayed]
1723         if {[llength $to_display] > $display_limit} {
1724                 if {!$files_warning} {
1725                         # do not repeatedly warn:
1726                         set files_warning 1
1727                         info_popup [mc "Displaying only %s of %s files." \
1728                                 $display_limit [llength $to_display]]
1729                 }
1730                 set to_display [lrange $to_display 0 [expr {$display_limit-1}]]
1731         }
1732         foreach path $to_display {
1733                 set s $file_states($path)
1734                 set m [lindex $s 0]
1735                 set icon_name [lindex $s 1]
1736
1737                 set s [string index $m 0]
1738                 if {$s ne {U} && $s ne {_}} {
1739                         display_all_files_helper $ui_index $path \
1740                                 $icon_name $s
1741                 }
1742
1743                 if {[string index $m 0] eq {U}} {
1744                         set s U
1745                 } else {
1746                         set s [string index $m 1]
1747                 }
1748                 if {$s ne {_}} {
1749                         display_all_files_helper $ui_workdir $path \
1750                                 $icon_name $s
1751                 }
1752         }
1753
1754         $ui_index conf -state disabled
1755         $ui_workdir conf -state disabled
1756 }
1757
1758 ######################################################################
1759 ##
1760 ## icons
1761
1762 set filemask {
1763 #define mask_width 14
1764 #define mask_height 15
1765 static unsigned char mask_bits[] = {
1766    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1767    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1768    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
1769 }
1770
1771 image create bitmap file_plain -background white -foreground black -data {
1772 #define plain_width 14
1773 #define plain_height 15
1774 static unsigned char plain_bits[] = {
1775    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1776    0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
1777    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1778 } -maskdata $filemask
1779
1780 image create bitmap file_mod -background white -foreground blue -data {
1781 #define mod_width 14
1782 #define mod_height 15
1783 static unsigned char mod_bits[] = {
1784    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
1785    0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1786    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
1787 } -maskdata $filemask
1788
1789 image create bitmap file_fulltick -background white -foreground "#007000" -data {
1790 #define file_fulltick_width 14
1791 #define file_fulltick_height 15
1792 static unsigned char file_fulltick_bits[] = {
1793    0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
1794    0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
1795    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1796 } -maskdata $filemask
1797
1798 image create bitmap file_parttick -background white -foreground "#005050" -data {
1799 #define parttick_width 14
1800 #define parttick_height 15
1801 static unsigned char parttick_bits[] = {
1802    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
1803    0x7a, 0x14, 0x02, 0x16, 0x02, 0x13, 0x8a, 0x11, 0xda, 0x10, 0x72, 0x10,
1804    0x22, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1805 } -maskdata $filemask
1806
1807 image create bitmap file_question -background white -foreground black -data {
1808 #define file_question_width 14
1809 #define file_question_height 15
1810 static unsigned char file_question_bits[] = {
1811    0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
1812    0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
1813    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1814 } -maskdata $filemask
1815
1816 image create bitmap file_removed -background white -foreground red -data {
1817 #define file_removed_width 14
1818 #define file_removed_height 15
1819 static unsigned char file_removed_bits[] = {
1820    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1821    0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
1822    0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
1823 } -maskdata $filemask
1824
1825 image create bitmap file_merge -background white -foreground blue -data {
1826 #define file_merge_width 14
1827 #define file_merge_height 15
1828 static unsigned char file_merge_bits[] = {
1829    0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
1830    0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1831    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
1832 } -maskdata $filemask
1833
1834 image create bitmap file_statechange -background white -foreground green -data {
1835 #define file_merge_width 14
1836 #define file_merge_height 15
1837 static unsigned char file_statechange_bits[] = {
1838    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x62, 0x10,
1839    0x62, 0x10, 0xba, 0x11, 0xba, 0x11, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10,
1840    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1841 } -maskdata $filemask
1842
1843 set ui_index .vpane.files.index.list
1844 set ui_workdir .vpane.files.workdir.list
1845
1846 set all_icons(_$ui_index)   file_plain
1847 set all_icons(A$ui_index)   file_fulltick
1848 set all_icons(M$ui_index)   file_fulltick
1849 set all_icons(D$ui_index)   file_removed
1850 set all_icons(U$ui_index)   file_merge
1851 set all_icons(T$ui_index)   file_statechange
1852
1853 set all_icons(_$ui_workdir) file_plain
1854 set all_icons(M$ui_workdir) file_mod
1855 set all_icons(D$ui_workdir) file_question
1856 set all_icons(U$ui_workdir) file_merge
1857 set all_icons(O$ui_workdir) file_plain
1858 set all_icons(T$ui_workdir) file_statechange
1859
1860 set max_status_desc 0
1861 foreach i {
1862                 {__ {mc "Unmodified"}}
1863
1864                 {_M {mc "Modified, not staged"}}
1865                 {M_ {mc "Staged for commit"}}
1866                 {MM {mc "Portions staged for commit"}}
1867                 {MD {mc "Staged for commit, missing"}}
1868
1869                 {_T {mc "File type changed, not staged"}}
1870                 {T_ {mc "File type changed, staged"}}
1871
1872                 {_O {mc "Untracked, not staged"}}
1873                 {A_ {mc "Staged for commit"}}
1874                 {AM {mc "Portions staged for commit"}}
1875                 {AD {mc "Staged for commit, missing"}}
1876
1877                 {_D {mc "Missing"}}
1878                 {D_ {mc "Staged for removal"}}
1879                 {DO {mc "Staged for removal, still present"}}
1880
1881                 {_U {mc "Requires merge resolution"}}
1882                 {U_ {mc "Requires merge resolution"}}
1883                 {UU {mc "Requires merge resolution"}}
1884                 {UM {mc "Requires merge resolution"}}
1885                 {UD {mc "Requires merge resolution"}}
1886                 {UT {mc "Requires merge resolution"}}
1887         } {
1888         set text [eval [lindex $i 1]]
1889         if {$max_status_desc < [string length $text]} {
1890                 set max_status_desc [string length $text]
1891         }
1892         set all_descs([lindex $i 0]) $text
1893 }
1894 unset i
1895
1896 ######################################################################
1897 ##
1898 ## util
1899
1900 proc scrollbar2many {list mode args} {
1901         foreach w $list {eval $w $mode $args}
1902 }
1903
1904 proc many2scrollbar {list mode sb top bottom} {
1905         $sb set $top $bottom
1906         foreach w $list {$w $mode moveto $top}
1907 }
1908
1909 proc incr_font_size {font {amt 1}} {
1910         set sz [font configure $font -size]
1911         incr sz $amt
1912         font configure $font -size $sz
1913         font configure ${font}bold -size $sz
1914         font configure ${font}italic -size $sz
1915 }
1916
1917 ######################################################################
1918 ##
1919 ## ui commands
1920
1921 set starting_gitk_msg [mc "Starting gitk... please wait..."]
1922
1923 proc do_gitk {revs} {
1924         # -- Always start gitk through whatever we were loaded with.  This
1925         #    lets us bypass using shell process on Windows systems.
1926         #
1927         set exe [_which gitk -script]
1928         set cmd [list [info nameofexecutable] $exe]
1929         if {$exe eq {}} {
1930                 error_popup [mc "Couldn't find gitk in PATH"]
1931         } else {
1932                 global env
1933
1934                 if {[info exists env(GIT_DIR)]} {
1935                         set old_GIT_DIR $env(GIT_DIR)
1936                 } else {
1937                         set old_GIT_DIR {}
1938                 }
1939
1940                 set pwd [pwd]
1941                 cd [file dirname [gitdir]]
1942                 set env(GIT_DIR) [file tail [gitdir]]
1943
1944                 eval exec $cmd $revs &
1945
1946                 if {$old_GIT_DIR eq {}} {
1947                         unset env(GIT_DIR)
1948                 } else {
1949                         set env(GIT_DIR) $old_GIT_DIR
1950                 }
1951                 cd $pwd
1952
1953                 ui_status $::starting_gitk_msg
1954                 after 10000 {
1955                         ui_ready $starting_gitk_msg
1956                 }
1957         }
1958 }
1959
1960 proc do_explore {} {
1961         set explorer {}
1962         if {[is_Cygwin] || [is_Windows]} {
1963                 set explorer "explorer.exe"
1964         } elseif {[is_MacOSX]} {
1965                 set explorer "open"
1966         } else {
1967                 # freedesktop.org-conforming system is our best shot
1968                 set explorer "xdg-open"
1969         }
1970         eval exec $explorer [list [file nativename [file dirname [gitdir]]]] &
1971 }
1972
1973 set is_quitting 0
1974 set ret_code    1
1975
1976 proc terminate_me {win} {
1977         global ret_code
1978         if {$win ne {.}} return
1979         exit $ret_code
1980 }
1981
1982 proc do_quit {{rc {1}}} {
1983         global ui_comm is_quitting repo_config commit_type
1984         global GITGUI_BCK_exists GITGUI_BCK_i
1985         global ui_comm_spell
1986         global ret_code
1987
1988         if {$is_quitting} return
1989         set is_quitting 1
1990
1991         if {[winfo exists $ui_comm]} {
1992                 # -- Stash our current commit buffer.
1993                 #
1994                 set save [gitdir GITGUI_MSG]
1995                 if {$GITGUI_BCK_exists && ![$ui_comm edit modified]} {
1996                         file rename -force [gitdir GITGUI_BCK] $save
1997                         set GITGUI_BCK_exists 0
1998                 } else {
1999                         set msg [string trim [$ui_comm get 0.0 end]]
2000                         regsub -all -line {[ \r\t]+$} $msg {} msg
2001                         if {(![string match amend* $commit_type]
2002                                 || [$ui_comm edit modified])
2003                                 && $msg ne {}} {
2004                                 catch {
2005                                         set fd [open $save w]
2006                                         puts -nonewline $fd $msg
2007                                         close $fd
2008                                 }
2009                         } else {
2010                                 catch {file delete $save}
2011                         }
2012                 }
2013
2014                 # -- Cancel our spellchecker if its running.
2015                 #
2016                 if {[info exists ui_comm_spell]} {
2017                         $ui_comm_spell stop
2018                 }
2019
2020                 # -- Remove our editor backup, its not needed.
2021                 #
2022                 after cancel $GITGUI_BCK_i
2023                 if {$GITGUI_BCK_exists} {
2024                         catch {file delete [gitdir GITGUI_BCK]}
2025                 }
2026
2027                 # -- Stash our current window geometry into this repository.
2028                 #
2029                 set cfg_wmstate [wm state .]
2030                 if {[catch {set rc_wmstate $repo_config(gui.wmstate)}]} {
2031                         set rc_wmstate {}
2032                 }
2033                 if {$cfg_wmstate ne $rc_wmstate} {
2034                         catch {git config gui.wmstate $cfg_wmstate}
2035                 }
2036                 if {$cfg_wmstate eq {zoomed}} {
2037                         # on Windows wm geometry will lie about window
2038                         # position (but not size) when window is zoomed
2039                         # restore the window before querying wm geometry
2040                         wm state . normal
2041                 }
2042                 set cfg_geometry [list]
2043                 lappend cfg_geometry [wm geometry .]
2044                 lappend cfg_geometry [lindex [.vpane sash coord 0] 0]
2045                 lappend cfg_geometry [lindex [.vpane.files sash coord 0] 1]
2046                 if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
2047                         set rc_geometry {}
2048                 }
2049                 if {$cfg_geometry ne $rc_geometry} {
2050                         catch {git config gui.geometry $cfg_geometry}
2051                 }
2052         }
2053
2054         set ret_code $rc
2055
2056         # Briefly enable send again, working around Tk bug
2057         # http://sourceforge.net/tracker/?func=detail&atid=112997&aid=1821174&group_id=12997
2058         tk appname [appname]
2059
2060         destroy .
2061 }
2062
2063 proc do_rescan {} {
2064         rescan ui_ready
2065 }
2066
2067 proc ui_do_rescan {} {
2068         rescan {force_first_diff ui_ready}
2069 }
2070
2071 proc do_commit {} {
2072         commit_tree
2073 }
2074
2075 proc next_diff {{after {}}} {
2076         global next_diff_p next_diff_w next_diff_i
2077         show_diff $next_diff_p $next_diff_w {} {} $after
2078 }
2079
2080 proc find_anchor_pos {lst name} {
2081         set lid [lsearch -sorted -exact $lst $name]
2082
2083         if {$lid == -1} {
2084                 set lid 0
2085                 foreach lname $lst {
2086                         if {$lname >= $name} break
2087                         incr lid
2088                 }
2089         }
2090
2091         return $lid
2092 }
2093
2094 proc find_file_from {flist idx delta path mmask} {
2095         global file_states
2096
2097         set len [llength $flist]
2098         while {$idx >= 0 && $idx < $len} {
2099                 set name [lindex $flist $idx]
2100
2101                 if {$name ne $path && [info exists file_states($name)]} {
2102                         set state [lindex $file_states($name) 0]
2103
2104                         if {$mmask eq {} || [regexp $mmask $state]} {
2105                                 return $idx
2106                         }
2107                 }
2108
2109                 incr idx $delta
2110         }
2111
2112         return {}
2113 }
2114
2115 proc find_next_diff {w path {lno {}} {mmask {}}} {
2116         global next_diff_p next_diff_w next_diff_i
2117         global file_lists ui_index ui_workdir
2118
2119         set flist $file_lists($w)
2120         if {$lno eq {}} {
2121                 set lno [find_anchor_pos $flist $path]
2122         } else {
2123                 incr lno -1
2124         }
2125
2126         if {$mmask ne {} && ![regexp {(^\^)|(\$$)} $mmask]} {
2127                 if {$w eq $ui_index} {
2128                         set mmask "^$mmask"
2129                 } else {
2130                         set mmask "$mmask\$"
2131                 }
2132         }
2133
2134         set idx [find_file_from $flist $lno 1 $path $mmask]
2135         if {$idx eq {}} {
2136                 incr lno -1
2137                 set idx [find_file_from $flist $lno -1 $path $mmask]
2138         }
2139
2140         if {$idx ne {}} {
2141                 set next_diff_w $w
2142                 set next_diff_p [lindex $flist $idx]
2143                 set next_diff_i [expr {$idx+1}]
2144                 return 1
2145         } else {
2146                 return 0
2147         }
2148 }
2149
2150 proc next_diff_after_action {w path {lno {}} {mmask {}}} {
2151         global current_diff_path
2152
2153         if {$path ne $current_diff_path} {
2154                 return {}
2155         } elseif {[find_next_diff $w $path $lno $mmask]} {
2156                 return {next_diff;}
2157         } else {
2158                 return {reshow_diff;}
2159         }
2160 }
2161
2162 proc select_first_diff {after} {
2163         global ui_workdir
2164
2165         if {[find_next_diff $ui_workdir {} 1 {^_?U}] ||
2166             [find_next_diff $ui_workdir {} 1 {[^O]$}]} {
2167                 next_diff $after
2168         } else {
2169                 uplevel #0 $after
2170         }
2171 }
2172
2173 proc force_first_diff {after} {
2174         global ui_workdir current_diff_path file_states
2175
2176         if {[info exists file_states($current_diff_path)]} {
2177                 set state [lindex $file_states($current_diff_path) 0]
2178         } else {
2179                 set state {OO}
2180         }
2181
2182         set reselect 0
2183         if {[string first {U} $state] >= 0} {
2184                 # Already a conflict, do nothing
2185         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {^_?U}]} {
2186                 set reselect 1
2187         } elseif {[string index $state 1] ne {O}} {
2188                 # Already a diff & no conflicts, do nothing
2189         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {[^O]$}]} {
2190                 set reselect 1
2191         }
2192
2193         if {$reselect} {
2194                 next_diff $after
2195         } else {
2196                 uplevel #0 $after
2197         }
2198 }
2199
2200 proc toggle_or_diff {w x y} {
2201         global file_states file_lists current_diff_path ui_index ui_workdir
2202         global last_clicked selected_paths
2203
2204         set pos [split [$w index @$x,$y] .]
2205         set lno [lindex $pos 0]
2206         set col [lindex $pos 1]
2207         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2208         if {$path eq {}} {
2209                 set last_clicked {}
2210                 return
2211         }
2212
2213         set last_clicked [list $w $lno]
2214         array unset selected_paths
2215         $ui_index tag remove in_sel 0.0 end
2216         $ui_workdir tag remove in_sel 0.0 end
2217
2218         # Determine the state of the file
2219         if {[info exists file_states($path)]} {
2220                 set state [lindex $file_states($path) 0]
2221         } else {
2222                 set state {__}
2223         }
2224
2225         # Restage the file, or simply show the diff
2226         if {$col == 0 && $y > 1} {
2227                 # Conflicts need special handling
2228                 if {[string first {U} $state] >= 0} {
2229                         # $w must always be $ui_workdir, but...
2230                         if {$w ne $ui_workdir} { set lno {} }
2231                         merge_stage_workdir $path $lno
2232                         return
2233                 }
2234
2235                 if {[string index $state 1] eq {O}} {
2236                         set mmask {}
2237                 } else {
2238                         set mmask {[^O]}
2239                 }
2240
2241                 set after [next_diff_after_action $w $path $lno $mmask]
2242
2243                 if {$w eq $ui_index} {
2244                         update_indexinfo \
2245                                 "Unstaging [short_path $path] from commit" \
2246                                 [list $path] \
2247                                 [concat $after [list ui_ready]]
2248                 } elseif {$w eq $ui_workdir} {
2249                         update_index \
2250                                 "Adding [short_path $path]" \
2251                                 [list $path] \
2252                                 [concat $after [list ui_ready]]
2253                 }
2254         } else {
2255                 show_diff $path $w $lno
2256         }
2257 }
2258
2259 proc add_one_to_selection {w x y} {
2260         global file_lists last_clicked selected_paths
2261
2262         set lno [lindex [split [$w index @$x,$y] .] 0]
2263         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2264         if {$path eq {}} {
2265                 set last_clicked {}
2266                 return
2267         }
2268
2269         if {$last_clicked ne {}
2270                 && [lindex $last_clicked 0] ne $w} {
2271                 array unset selected_paths
2272                 [lindex $last_clicked 0] tag remove in_sel 0.0 end
2273         }
2274
2275         set last_clicked [list $w $lno]
2276         if {[catch {set in_sel $selected_paths($path)}]} {
2277                 set in_sel 0
2278         }
2279         if {$in_sel} {
2280                 unset selected_paths($path)
2281                 $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
2282         } else {
2283                 set selected_paths($path) 1
2284                 $w tag add in_sel $lno.0 [expr {$lno + 1}].0
2285         }
2286 }
2287
2288 proc add_range_to_selection {w x y} {
2289         global file_lists last_clicked selected_paths
2290
2291         if {[lindex $last_clicked 0] ne $w} {
2292                 toggle_or_diff $w $x $y
2293                 return
2294         }
2295
2296         set lno [lindex [split [$w index @$x,$y] .] 0]
2297         set lc [lindex $last_clicked 1]
2298         if {$lc < $lno} {
2299                 set begin $lc
2300                 set end $lno
2301         } else {
2302                 set begin $lno
2303                 set end $lc
2304         }
2305
2306         foreach path [lrange $file_lists($w) \
2307                 [expr {$begin - 1}] \
2308                 [expr {$end - 1}]] {
2309                 set selected_paths($path) 1
2310         }
2311         $w tag add in_sel $begin.0 [expr {$end + 1}].0
2312 }
2313
2314 proc show_more_context {} {
2315         global repo_config
2316         if {$repo_config(gui.diffcontext) < 99} {
2317                 incr repo_config(gui.diffcontext)
2318                 reshow_diff
2319         }
2320 }
2321
2322 proc show_less_context {} {
2323         global repo_config
2324         if {$repo_config(gui.diffcontext) > 1} {
2325                 incr repo_config(gui.diffcontext) -1
2326                 reshow_diff
2327         }
2328 }
2329
2330 ######################################################################
2331 ##
2332 ## ui construction
2333
2334 load_config 0
2335 apply_config
2336 set ui_comm {}
2337
2338 # -- Menu Bar
2339 #
2340 menu .mbar -tearoff 0
2341 if {[is_MacOSX]} {
2342         # -- Apple Menu (Mac OS X only)
2343         #
2344         .mbar add cascade -label Apple -menu .mbar.apple
2345         menu .mbar.apple
2346 }
2347 .mbar add cascade -label [mc Repository] -menu .mbar.repository
2348 .mbar add cascade -label [mc Edit] -menu .mbar.edit
2349 if {[is_enabled branch]} {
2350         .mbar add cascade -label [mc Branch] -menu .mbar.branch
2351 }
2352 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2353         .mbar add cascade -label [mc Commit@@noun] -menu .mbar.commit
2354 }
2355 if {[is_enabled transport]} {
2356         .mbar add cascade -label [mc Merge] -menu .mbar.merge
2357         .mbar add cascade -label [mc Remote] -menu .mbar.remote
2358 }
2359 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2360         .mbar add cascade -label [mc Tools] -menu .mbar.tools
2361 }
2362
2363 # -- Repository Menu
2364 #
2365 menu .mbar.repository
2366
2367 .mbar.repository add command \
2368         -label [mc "Explore Working Copy"] \
2369         -command {do_explore}
2370 .mbar.repository add separator
2371
2372 .mbar.repository add command \
2373         -label [mc "Browse Current Branch's Files"] \
2374         -command {browser::new $current_branch}
2375 set ui_browse_current [.mbar.repository index last]
2376 .mbar.repository add command \
2377         -label [mc "Browse Branch Files..."] \
2378         -command browser_open::dialog
2379 .mbar.repository add separator
2380
2381 .mbar.repository add command \
2382         -label [mc "Visualize Current Branch's History"] \
2383         -command {do_gitk $current_branch}
2384 set ui_visualize_current [.mbar.repository index last]
2385 .mbar.repository add command \
2386         -label [mc "Visualize All Branch History"] \
2387         -command {do_gitk --all}
2388 .mbar.repository add separator
2389
2390 proc current_branch_write {args} {
2391         global current_branch
2392         .mbar.repository entryconf $::ui_browse_current \
2393                 -label [mc "Browse %s's Files" $current_branch]
2394         .mbar.repository entryconf $::ui_visualize_current \
2395                 -label [mc "Visualize %s's History" $current_branch]
2396 }
2397 trace add variable current_branch write current_branch_write
2398
2399 if {[is_enabled multicommit]} {
2400         .mbar.repository add command -label [mc "Database Statistics"] \
2401                 -command do_stats
2402
2403         .mbar.repository add command -label [mc "Compress Database"] \
2404                 -command do_gc
2405
2406         .mbar.repository add command -label [mc "Verify Database"] \
2407                 -command do_fsck_objects
2408
2409         .mbar.repository add separator
2410
2411         if {[is_Cygwin]} {
2412                 .mbar.repository add command \
2413                         -label [mc "Create Desktop Icon"] \
2414                         -command do_cygwin_shortcut
2415         } elseif {[is_Windows]} {
2416                 .mbar.repository add command \
2417                         -label [mc "Create Desktop Icon"] \
2418                         -command do_windows_shortcut
2419         } elseif {[is_MacOSX]} {
2420                 .mbar.repository add command \
2421                         -label [mc "Create Desktop Icon"] \
2422                         -command do_macosx_app
2423         }
2424 }
2425
2426 if {[is_MacOSX]} {
2427         proc ::tk::mac::Quit {args} { do_quit }
2428 } else {
2429         .mbar.repository add command -label [mc Quit] \
2430                 -command do_quit \
2431                 -accelerator $M1T-Q
2432 }
2433
2434 # -- Edit Menu
2435 #
2436 menu .mbar.edit
2437 .mbar.edit add command -label [mc Undo] \
2438         -command {catch {[focus] edit undo}} \
2439         -accelerator $M1T-Z
2440 .mbar.edit add command -label [mc Redo] \
2441         -command {catch {[focus] edit redo}} \
2442         -accelerator $M1T-Y
2443 .mbar.edit add separator
2444 .mbar.edit add command -label [mc Cut] \
2445         -command {catch {tk_textCut [focus]}} \
2446         -accelerator $M1T-X
2447 .mbar.edit add command -label [mc Copy] \
2448         -command {catch {tk_textCopy [focus]}} \
2449         -accelerator $M1T-C
2450 .mbar.edit add command -label [mc Paste] \
2451         -command {catch {tk_textPaste [focus]; [focus] see insert}} \
2452         -accelerator $M1T-V
2453 .mbar.edit add command -label [mc Delete] \
2454         -command {catch {[focus] delete sel.first sel.last}} \
2455         -accelerator Del
2456 .mbar.edit add separator
2457 .mbar.edit add command -label [mc "Select All"] \
2458         -command {catch {[focus] tag add sel 0.0 end}} \
2459         -accelerator $M1T-A
2460
2461 # -- Branch Menu
2462 #
2463 if {[is_enabled branch]} {
2464         menu .mbar.branch
2465
2466         .mbar.branch add command -label [mc "Create..."] \
2467                 -command branch_create::dialog \
2468                 -accelerator $M1T-N
2469         lappend disable_on_lock [list .mbar.branch entryconf \
2470                 [.mbar.branch index last] -state]
2471
2472         .mbar.branch add command -label [mc "Checkout..."] \
2473                 -command branch_checkout::dialog \
2474                 -accelerator $M1T-O
2475         lappend disable_on_lock [list .mbar.branch entryconf \
2476                 [.mbar.branch index last] -state]
2477
2478         .mbar.branch add command -label [mc "Rename..."] \
2479                 -command branch_rename::dialog
2480         lappend disable_on_lock [list .mbar.branch entryconf \
2481                 [.mbar.branch index last] -state]
2482
2483         .mbar.branch add command -label [mc "Delete..."] \
2484                 -command branch_delete::dialog
2485         lappend disable_on_lock [list .mbar.branch entryconf \
2486                 [.mbar.branch index last] -state]
2487
2488         .mbar.branch add command -label [mc "Reset..."] \
2489                 -command merge::reset_hard
2490         lappend disable_on_lock [list .mbar.branch entryconf \
2491                 [.mbar.branch index last] -state]
2492 }
2493
2494 # -- Commit Menu
2495 #
2496 proc commit_btn_caption {} {
2497         if {[is_enabled nocommit]} {
2498                 return [mc "Done"]
2499         } else {
2500                 return [mc Commit@@verb]
2501         }
2502 }
2503
2504 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2505         menu .mbar.commit
2506
2507         if {![is_enabled nocommit]} {
2508                 .mbar.commit add radiobutton \
2509                         -label [mc "New Commit"] \
2510                         -command do_select_commit_type \
2511                         -variable selected_commit_type \
2512                         -value new
2513                 lappend disable_on_lock \
2514                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2515
2516                 .mbar.commit add radiobutton \
2517                         -label [mc "Amend Last Commit"] \
2518                         -command do_select_commit_type \
2519                         -variable selected_commit_type \
2520                         -value amend
2521                 lappend disable_on_lock \
2522                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2523
2524                 .mbar.commit add separator
2525         }
2526
2527         .mbar.commit add command -label [mc Rescan] \
2528                 -command ui_do_rescan \
2529                 -accelerator F5
2530         lappend disable_on_lock \
2531                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2532
2533         .mbar.commit add command -label [mc "Stage To Commit"] \
2534                 -command do_add_selection \
2535                 -accelerator $M1T-T
2536         lappend disable_on_lock \
2537                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2538
2539         .mbar.commit add command -label [mc "Stage Changed Files To Commit"] \
2540                 -command do_add_all \
2541                 -accelerator $M1T-I
2542         lappend disable_on_lock \
2543                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2544
2545         .mbar.commit add command -label [mc "Unstage From Commit"] \
2546                 -command do_unstage_selection
2547         lappend disable_on_lock \
2548                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2549
2550         .mbar.commit add command -label [mc "Revert Changes"] \
2551                 -command do_revert_selection
2552         lappend disable_on_lock \
2553                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2554
2555         .mbar.commit add separator
2556
2557         .mbar.commit add command -label [mc "Show Less Context"] \
2558                 -command show_less_context \
2559                 -accelerator $M1T-\-
2560
2561         .mbar.commit add command -label [mc "Show More Context"] \
2562                 -command show_more_context \
2563                 -accelerator $M1T-=
2564
2565         .mbar.commit add separator
2566
2567         if {![is_enabled nocommitmsg]} {
2568                 .mbar.commit add command -label [mc "Sign Off"] \
2569                         -command do_signoff \
2570                         -accelerator $M1T-S
2571         }
2572
2573         .mbar.commit add command -label [commit_btn_caption] \
2574                 -command do_commit \
2575                 -accelerator $M1T-Return
2576         lappend disable_on_lock \
2577                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2578 }
2579
2580 # -- Merge Menu
2581 #
2582 if {[is_enabled branch]} {
2583         menu .mbar.merge
2584         .mbar.merge add command -label [mc "Local Merge..."] \
2585                 -command merge::dialog \
2586                 -accelerator $M1T-M
2587         lappend disable_on_lock \
2588                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2589         .mbar.merge add command -label [mc "Abort Merge..."] \
2590                 -command merge::reset_hard
2591         lappend disable_on_lock \
2592                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2593 }
2594
2595 # -- Transport Menu
2596 #
2597 if {[is_enabled transport]} {
2598         menu .mbar.remote
2599
2600         .mbar.remote add command \
2601                 -label [mc "Add..."] \
2602                 -command remote_add::dialog \
2603                 -accelerator $M1T-A
2604         .mbar.remote add command \
2605                 -label [mc "Push..."] \
2606                 -command do_push_anywhere \
2607                 -accelerator $M1T-P
2608         .mbar.remote add command \
2609                 -label [mc "Delete Branch..."] \
2610                 -command remote_branch_delete::dialog
2611 }
2612
2613 if {[is_MacOSX]} {
2614         proc ::tk::mac::ShowPreferences {} {do_options}
2615 } else {
2616         # -- Edit Menu
2617         #
2618         .mbar.edit add separator
2619         .mbar.edit add command -label [mc "Options..."] \
2620                 -command do_options
2621 }
2622
2623 # -- Tools Menu
2624 #
2625 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2626         set tools_menubar .mbar.tools
2627         menu $tools_menubar
2628         $tools_menubar add separator
2629         $tools_menubar add command -label [mc "Add..."] -command tools_add::dialog
2630         $tools_menubar add command -label [mc "Remove..."] -command tools_remove::dialog
2631         set tools_tailcnt 3
2632         if {[array names repo_config guitool.*.cmd] ne {}} {
2633                 tools_populate_all
2634         }
2635 }
2636
2637 # -- Help Menu
2638 #
2639 .mbar add cascade -label [mc Help] -menu .mbar.help
2640 menu .mbar.help
2641
2642 if {[is_MacOSX]} {
2643         .mbar.apple add command -label [mc "About %s" [appname]] \
2644                 -command do_about
2645         .mbar.apple add separator
2646 } else {
2647         .mbar.help add command -label [mc "About %s" [appname]] \
2648                 -command do_about
2649 }
2650 . configure -menu .mbar
2651
2652 set doc_path [githtmldir]
2653 if {$doc_path ne {}} {
2654         set doc_path [file join $doc_path index.html]
2655
2656         if {[is_Cygwin]} {
2657                 set doc_path [exec cygpath --mixed $doc_path]
2658         }
2659 }
2660
2661 if {[file isfile $doc_path]} {
2662         set doc_url "file:$doc_path"
2663 } else {
2664         set doc_url {http://www.kernel.org/pub/software/scm/git/docs/}
2665 }
2666
2667 proc start_browser {url} {
2668         git "web--browse" $url
2669 }
2670
2671 .mbar.help add command -label [mc "Online Documentation"] \
2672         -command [list start_browser $doc_url]
2673
2674 .mbar.help add command -label [mc "Show SSH Key"] \
2675         -command do_ssh_key
2676
2677 unset doc_path doc_url
2678
2679 # -- Standard bindings
2680 #
2681 wm protocol . WM_DELETE_WINDOW do_quit
2682 bind all <$M1B-Key-q> do_quit
2683 bind all <$M1B-Key-Q> do_quit
2684 bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
2685 bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
2686
2687 set subcommand_args {}
2688 proc usage {} {
2689         puts stderr "usage: $::argv0 $::subcommand $::subcommand_args"
2690         exit 1
2691 }
2692
2693 proc normalize_relpath {path} {
2694         set elements {}
2695         foreach item [file split $path] {
2696                 if {$item eq {.}} continue
2697                 if {$item eq {..} && [llength $elements] > 0
2698                     && [lindex $elements end] ne {..}} {
2699                         set elements [lrange $elements 0 end-1]
2700                         continue
2701                 }
2702                 lappend elements $item
2703         }
2704         return [eval file join $elements]
2705 }
2706
2707 # -- Not a normal commit type invocation?  Do that instead!
2708 #
2709 switch -- $subcommand {
2710 browser -
2711 blame {
2712         if {$subcommand eq "blame"} {
2713                 set subcommand_args {[--line=<num>] rev? path}
2714         } else {
2715                 set subcommand_args {rev? path}
2716         }
2717         if {$argv eq {}} usage
2718         set head {}
2719         set path {}
2720         set jump_spec {}
2721         set is_path 0
2722         foreach a $argv {
2723                 if {$is_path || [file exists $_prefix$a]} {
2724                         if {$path ne {}} usage
2725                         set path [normalize_relpath $_prefix$a]
2726                         break
2727                 } elseif {$a eq {--}} {
2728                         if {$path ne {}} {
2729                                 if {$head ne {}} usage
2730                                 set head $path
2731                                 set path {}
2732                         }
2733                         set is_path 1
2734                 } elseif {[regexp {^--line=(\d+)$} $a a lnum]} {
2735                         if {$jump_spec ne {} || $head ne {}} usage
2736                         set jump_spec [list $lnum]
2737                 } elseif {$head eq {}} {
2738                         if {$head ne {}} usage
2739                         set head $a
2740                         set is_path 1
2741                 } else {
2742                         usage
2743                 }
2744         }
2745         unset is_path
2746
2747         if {$head ne {} && $path eq {}} {
2748                 set path [normalize_relpath $_prefix$head]
2749                 set head {}
2750         }
2751
2752         if {$head eq {}} {
2753                 load_current_branch
2754         } else {
2755                 if {[regexp {^[0-9a-f]{1,39}$} $head]} {
2756                         if {[catch {
2757                                         set head [git rev-parse --verify $head]
2758                                 } err]} {
2759                                 puts stderr $err
2760                                 exit 1
2761                         }
2762                 }
2763                 set current_branch $head
2764         }
2765
2766         switch -- $subcommand {
2767         browser {
2768                 if {$jump_spec ne {}} usage
2769                 if {$head eq {}} {
2770                         if {$path ne {} && [file isdirectory $path]} {
2771                                 set head $current_branch
2772                         } else {
2773                                 set head $path
2774                                 set path {}
2775                         }
2776                 }
2777                 browser::new $head $path
2778         }
2779         blame   {
2780                 if {$head eq {} && ![file exists $path]} {
2781                         puts stderr [mc "fatal: cannot stat path %s: No such file or directory" $path]
2782                         exit 1
2783                 }
2784                 blame::new $head $path $jump_spec
2785         }
2786         }
2787         return
2788 }
2789 citool -
2790 gui {
2791         if {[llength $argv] != 0} {
2792                 puts -nonewline stderr "usage: $argv0"
2793                 if {$subcommand ne {gui}
2794                         && [file tail $argv0] ne "git-$subcommand"} {
2795                         puts -nonewline stderr " $subcommand"
2796                 }
2797                 puts stderr {}
2798                 exit 1
2799         }
2800         # fall through to setup UI for commits
2801 }
2802 default {
2803         puts stderr "usage: $argv0 \[{blame|browser|citool}\]"
2804         exit 1
2805 }
2806 }
2807
2808 # -- Branch Control
2809 #
2810 frame .branch \
2811         -borderwidth 1 \
2812         -relief sunken
2813 label .branch.l1 \
2814         -text [mc "Current Branch:"] \
2815         -anchor w \
2816         -justify left
2817 label .branch.cb \
2818         -textvariable current_branch \
2819         -anchor w \
2820         -justify left
2821 pack .branch.l1 -side left
2822 pack .branch.cb -side left -fill x
2823 pack .branch -side top -fill x
2824
2825 # -- Main Window Layout
2826 #
2827 panedwindow .vpane -orient horizontal
2828 panedwindow .vpane.files -orient vertical
2829 .vpane add .vpane.files -sticky nsew -height 100 -width 200
2830 pack .vpane -anchor n -side top -fill both -expand 1
2831
2832 # -- Index File List
2833 #
2834 frame .vpane.files.index -height 100 -width 200
2835 label .vpane.files.index.title -text [mc "Staged Changes (Will Commit)"] \
2836         -background lightgreen -foreground black
2837 text $ui_index -background white -foreground black \
2838         -borderwidth 0 \
2839         -width 20 -height 10 \
2840         -wrap none \
2841         -cursor $cursor_ptr \
2842         -xscrollcommand {.vpane.files.index.sx set} \
2843         -yscrollcommand {.vpane.files.index.sy set} \
2844         -state disabled
2845 scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
2846 scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
2847 pack .vpane.files.index.title -side top -fill x
2848 pack .vpane.files.index.sx -side bottom -fill x
2849 pack .vpane.files.index.sy -side right -fill y
2850 pack $ui_index -side left -fill both -expand 1
2851
2852 # -- Working Directory File List
2853 #
2854 frame .vpane.files.workdir -height 100 -width 200
2855 label .vpane.files.workdir.title -text [mc "Unstaged Changes"] \
2856         -background lightsalmon -foreground black
2857 text $ui_workdir -background white -foreground black \
2858         -borderwidth 0 \
2859         -width 20 -height 10 \
2860         -wrap none \
2861         -cursor $cursor_ptr \
2862         -xscrollcommand {.vpane.files.workdir.sx set} \
2863         -yscrollcommand {.vpane.files.workdir.sy set} \
2864         -state disabled
2865 scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
2866 scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
2867 pack .vpane.files.workdir.title -side top -fill x
2868 pack .vpane.files.workdir.sx -side bottom -fill x
2869 pack .vpane.files.workdir.sy -side right -fill y
2870 pack $ui_workdir -side left -fill both -expand 1
2871
2872 .vpane.files add .vpane.files.workdir -sticky nsew
2873 .vpane.files add .vpane.files.index -sticky nsew
2874
2875 foreach i [list $ui_index $ui_workdir] {
2876         rmsel_tag $i
2877         $i tag conf in_diff -background [$i tag cget in_sel -background]
2878 }
2879 unset i
2880
2881 # -- Diff and Commit Area
2882 #
2883 frame .vpane.lower -height 300 -width 400
2884 frame .vpane.lower.commarea
2885 frame .vpane.lower.diff -relief sunken -borderwidth 1
2886 pack .vpane.lower.diff -fill both -expand 1
2887 pack .vpane.lower.commarea -side bottom -fill x
2888 .vpane add .vpane.lower -sticky nsew
2889
2890 # -- Commit Area Buttons
2891 #
2892 frame .vpane.lower.commarea.buttons
2893 label .vpane.lower.commarea.buttons.l -text {} \
2894         -anchor w \
2895         -justify left
2896 pack .vpane.lower.commarea.buttons.l -side top -fill x
2897 pack .vpane.lower.commarea.buttons -side left -fill y
2898
2899 button .vpane.lower.commarea.buttons.rescan -text [mc Rescan] \
2900         -command ui_do_rescan
2901 pack .vpane.lower.commarea.buttons.rescan -side top -fill x
2902 lappend disable_on_lock \
2903         {.vpane.lower.commarea.buttons.rescan conf -state}
2904
2905 button .vpane.lower.commarea.buttons.incall -text [mc "Stage Changed"] \
2906         -command do_add_all
2907 pack .vpane.lower.commarea.buttons.incall -side top -fill x
2908 lappend disable_on_lock \
2909         {.vpane.lower.commarea.buttons.incall conf -state}
2910
2911 if {![is_enabled nocommitmsg]} {
2912         button .vpane.lower.commarea.buttons.signoff -text [mc "Sign Off"] \
2913                 -command do_signoff
2914         pack .vpane.lower.commarea.buttons.signoff -side top -fill x
2915 }
2916
2917 button .vpane.lower.commarea.buttons.commit -text [commit_btn_caption] \
2918         -command do_commit
2919 pack .vpane.lower.commarea.buttons.commit -side top -fill x
2920 lappend disable_on_lock \
2921         {.vpane.lower.commarea.buttons.commit conf -state}
2922
2923 if {![is_enabled nocommit]} {
2924         button .vpane.lower.commarea.buttons.push -text [mc Push] \
2925                 -command do_push_anywhere
2926         pack .vpane.lower.commarea.buttons.push -side top -fill x
2927 }
2928
2929 # -- Commit Message Buffer
2930 #
2931 frame .vpane.lower.commarea.buffer
2932 frame .vpane.lower.commarea.buffer.header
2933 set ui_comm .vpane.lower.commarea.buffer.t
2934 set ui_coml .vpane.lower.commarea.buffer.header.l
2935
2936 if {![is_enabled nocommit]} {
2937         radiobutton .vpane.lower.commarea.buffer.header.new \
2938                 -text [mc "New Commit"] \
2939                 -command do_select_commit_type \
2940                 -variable selected_commit_type \
2941                 -value new
2942         lappend disable_on_lock \
2943                 [list .vpane.lower.commarea.buffer.header.new conf -state]
2944         radiobutton .vpane.lower.commarea.buffer.header.amend \
2945                 -text [mc "Amend Last Commit"] \
2946                 -command do_select_commit_type \
2947                 -variable selected_commit_type \
2948                 -value amend
2949         lappend disable_on_lock \
2950                 [list .vpane.lower.commarea.buffer.header.amend conf -state]
2951 }
2952
2953 label $ui_coml \
2954         -anchor w \
2955         -justify left
2956 proc trace_commit_type {varname args} {
2957         global ui_coml commit_type
2958         switch -glob -- $commit_type {
2959         initial       {set txt [mc "Initial Commit Message:"]}
2960         amend         {set txt [mc "Amended Commit Message:"]}
2961         amend-initial {set txt [mc "Amended Initial Commit Message:"]}
2962         amend-merge   {set txt [mc "Amended Merge Commit Message:"]}
2963         merge         {set txt [mc "Merge Commit Message:"]}
2964         *             {set txt [mc "Commit Message:"]}
2965         }
2966         $ui_coml conf -text $txt
2967 }
2968 trace add variable commit_type write trace_commit_type
2969 pack $ui_coml -side left -fill x
2970
2971 if {![is_enabled nocommit]} {
2972         pack .vpane.lower.commarea.buffer.header.amend -side right
2973         pack .vpane.lower.commarea.buffer.header.new -side right
2974 }
2975
2976 text $ui_comm -background white -foreground black \
2977         -borderwidth 1 \
2978         -undo true \
2979         -maxundo 20 \
2980         -autoseparators true \
2981         -relief sunken \
2982         -width $repo_config(gui.commitmsgwidth) -height 9 -wrap none \
2983         -font font_diff \
2984         -yscrollcommand {.vpane.lower.commarea.buffer.sby set}
2985 scrollbar .vpane.lower.commarea.buffer.sby \
2986         -command [list $ui_comm yview]
2987 pack .vpane.lower.commarea.buffer.header -side top -fill x
2988 pack .vpane.lower.commarea.buffer.sby -side right -fill y
2989 pack $ui_comm -side left -fill y
2990 pack .vpane.lower.commarea.buffer -side left -fill y
2991
2992 # -- Commit Message Buffer Context Menu
2993 #
2994 set ctxm .vpane.lower.commarea.buffer.ctxm
2995 menu $ctxm -tearoff 0
2996 $ctxm add command \
2997         -label [mc Cut] \
2998         -command {tk_textCut $ui_comm}
2999 $ctxm add command \
3000         -label [mc Copy] \
3001         -command {tk_textCopy $ui_comm}
3002 $ctxm add command \
3003         -label [mc Paste] \
3004         -command {tk_textPaste $ui_comm}
3005 $ctxm add command \
3006         -label [mc Delete] \
3007         -command {catch {$ui_comm delete sel.first sel.last}}
3008 $ctxm add separator
3009 $ctxm add command \
3010         -label [mc "Select All"] \
3011         -command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
3012 $ctxm add command \
3013         -label [mc "Copy All"] \
3014         -command {
3015                 $ui_comm tag add sel 0.0 end
3016                 tk_textCopy $ui_comm
3017                 $ui_comm tag remove sel 0.0 end
3018         }
3019 $ctxm add separator
3020 $ctxm add command \
3021         -label [mc "Sign Off"] \
3022         -command do_signoff
3023 set ui_comm_ctxm $ctxm
3024
3025 # -- Diff Header
3026 #
3027 proc trace_current_diff_path {varname args} {
3028         global current_diff_path diff_actions file_states
3029         if {$current_diff_path eq {}} {
3030                 set s {}
3031                 set f {}
3032                 set p {}
3033                 set o disabled
3034         } else {
3035                 set p $current_diff_path
3036                 set s [mapdesc [lindex $file_states($p) 0] $p]
3037                 set f [mc "File:"]
3038                 set p [escape_path $p]
3039                 set o normal
3040         }
3041
3042         .vpane.lower.diff.header.status configure -text $s
3043         .vpane.lower.diff.header.file configure -text $f
3044         .vpane.lower.diff.header.path configure -text $p
3045         foreach w $diff_actions {
3046                 uplevel #0 $w $o
3047         }
3048 }
3049 trace add variable current_diff_path write trace_current_diff_path
3050
3051 frame .vpane.lower.diff.header -background gold
3052 label .vpane.lower.diff.header.status \
3053         -background gold \
3054         -foreground black \
3055         -width $max_status_desc \
3056         -anchor w \
3057         -justify left
3058 label .vpane.lower.diff.header.file \
3059         -background gold \
3060         -foreground black \
3061         -anchor w \
3062         -justify left
3063 label .vpane.lower.diff.header.path \
3064         -background gold \
3065         -foreground black \
3066         -anchor w \
3067         -justify left
3068 pack .vpane.lower.diff.header.status -side left
3069 pack .vpane.lower.diff.header.file -side left
3070 pack .vpane.lower.diff.header.path -fill x
3071 set ctxm .vpane.lower.diff.header.ctxm
3072 menu $ctxm -tearoff 0
3073 $ctxm add command \
3074         -label [mc Copy] \
3075         -command {
3076                 clipboard clear
3077                 clipboard append \
3078                         -format STRING \
3079                         -type STRING \
3080                         -- $current_diff_path
3081         }
3082 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3083 bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"
3084
3085 # -- Diff Body
3086 #
3087 frame .vpane.lower.diff.body
3088 set ui_diff .vpane.lower.diff.body.t
3089 text $ui_diff -background white -foreground black \
3090         -borderwidth 0 \
3091         -width 80 -height 5 -wrap none \
3092         -font font_diff \
3093         -xscrollcommand {.vpane.lower.diff.body.sbx set} \
3094         -yscrollcommand {.vpane.lower.diff.body.sby set} \
3095         -state disabled
3096 scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
3097         -command [list $ui_diff xview]
3098 scrollbar .vpane.lower.diff.body.sby -orient vertical \
3099         -command [list $ui_diff yview]
3100 pack .vpane.lower.diff.body.sbx -side bottom -fill x
3101 pack .vpane.lower.diff.body.sby -side right -fill y
3102 pack $ui_diff -side left -fill both -expand 1
3103 pack .vpane.lower.diff.header -side top -fill x
3104 pack .vpane.lower.diff.body -side bottom -fill both -expand 1
3105
3106 $ui_diff tag conf d_cr -elide true
3107 $ui_diff tag conf d_@ -foreground blue -font font_diffbold
3108 $ui_diff tag conf d_+ -foreground {#00a000}
3109 $ui_diff tag conf d_- -foreground red
3110
3111 $ui_diff tag conf d_++ -foreground {#00a000}
3112 $ui_diff tag conf d_-- -foreground red
3113 $ui_diff tag conf d_+s \
3114         -foreground {#00a000} \
3115         -background {#e2effa}
3116 $ui_diff tag conf d_-s \
3117         -foreground red \
3118         -background {#e2effa}
3119 $ui_diff tag conf d_s+ \
3120         -foreground {#00a000} \
3121         -background ivory1
3122 $ui_diff tag conf d_s- \
3123         -foreground red \
3124         -background ivory1
3125
3126 $ui_diff tag conf d<<<<<<< \
3127         -foreground orange \
3128         -font font_diffbold
3129 $ui_diff tag conf d======= \
3130         -foreground orange \
3131         -font font_diffbold
3132 $ui_diff tag conf d>>>>>>> \
3133         -foreground orange \
3134         -font font_diffbold
3135
3136 $ui_diff tag raise sel
3137
3138 # -- Diff Body Context Menu
3139 #
3140
3141 proc create_common_diff_popup {ctxm} {
3142         $ctxm add command \
3143                 -label [mc "Show Less Context"] \
3144                 -command show_less_context
3145         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3146         $ctxm add command \
3147                 -label [mc "Show More Context"] \
3148                 -command show_more_context
3149         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3150         $ctxm add separator
3151         $ctxm add command \
3152                 -label [mc Refresh] \
3153                 -command reshow_diff
3154         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3155         $ctxm add command \
3156                 -label [mc Copy] \
3157                 -command {tk_textCopy $ui_diff}
3158         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3159         $ctxm add command \
3160                 -label [mc "Select All"] \
3161                 -command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
3162         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3163         $ctxm add command \
3164                 -label [mc "Copy All"] \
3165                 -command {
3166                         $ui_diff tag add sel 0.0 end
3167                         tk_textCopy $ui_diff
3168                         $ui_diff tag remove sel 0.0 end
3169                 }
3170         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3171         $ctxm add separator
3172         $ctxm add command \
3173                 -label [mc "Decrease Font Size"] \
3174                 -command {incr_font_size font_diff -1}
3175         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3176         $ctxm add command \
3177                 -label [mc "Increase Font Size"] \
3178                 -command {incr_font_size font_diff 1}
3179         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3180         $ctxm add separator
3181         set emenu $ctxm.enc
3182         menu $emenu
3183         build_encoding_menu $emenu [list force_diff_encoding]
3184         $ctxm add cascade \
3185                 -label [mc "Encoding"] \
3186                 -menu $emenu
3187         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3188         $ctxm add separator
3189         $ctxm add command -label [mc "Options..."] \
3190                 -command do_options
3191 }
3192
3193 set ctxm .vpane.lower.diff.body.ctxm
3194 menu $ctxm -tearoff 0
3195 $ctxm add command \
3196         -label [mc "Apply/Reverse Hunk"] \
3197         -command {apply_hunk $cursorX $cursorY}
3198 set ui_diff_applyhunk [$ctxm index last]
3199 lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
3200 $ctxm add command \
3201         -label [mc "Apply/Reverse Line"] \
3202         -command {apply_line $cursorX $cursorY; do_rescan}
3203 set ui_diff_applyline [$ctxm index last]
3204 lappend diff_actions [list $ctxm entryconf $ui_diff_applyline -state]
3205 $ctxm add separator
3206 create_common_diff_popup $ctxm
3207
3208 set ctxmmg .vpane.lower.diff.body.ctxmmg
3209 menu $ctxmmg -tearoff 0
3210 $ctxmmg add command \
3211         -label [mc "Run Merge Tool"] \
3212         -command {merge_resolve_tool}
3213 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3214 $ctxmmg add separator
3215 $ctxmmg add command \
3216         -label [mc "Use Remote Version"] \
3217         -command {merge_resolve_one 3}
3218 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3219 $ctxmmg add command \
3220         -label [mc "Use Local Version"] \
3221         -command {merge_resolve_one 2}
3222 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3223 $ctxmmg add command \
3224         -label [mc "Revert To Base"] \
3225         -command {merge_resolve_one 1}
3226 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3227 $ctxmmg add separator
3228 create_common_diff_popup $ctxmmg
3229
3230 proc popup_diff_menu {ctxm ctxmmg x y X Y} {
3231         global current_diff_path file_states
3232         set ::cursorX $x
3233         set ::cursorY $y
3234         if {[info exists file_states($current_diff_path)]} {
3235                 set state [lindex $file_states($current_diff_path) 0]
3236         } else {
3237                 set state {__}
3238         }
3239         if {[string first {U} $state] >= 0} {
3240                 tk_popup $ctxmmg $X $Y
3241         } else {
3242                 if {$::ui_index eq $::current_diff_side} {
3243                         set l [mc "Unstage Hunk From Commit"]
3244                         set t [mc "Unstage Line From Commit"]
3245                 } else {
3246                         set l [mc "Stage Hunk For Commit"]
3247                         set t [mc "Stage Line For Commit"]
3248                 }
3249                 if {$::is_3way_diff || $::is_submodule_diff
3250                         || $current_diff_path eq {}
3251                         || {__} eq $state
3252                         || {_O} eq $state
3253                         || {_T} eq $state
3254                         || {T_} eq $state} {
3255                         set s disabled
3256                 } else {
3257                         set s normal
3258                 }
3259                 $ctxm entryconf $::ui_diff_applyhunk -state $s -label $l
3260                 $ctxm entryconf $::ui_diff_applyline -state $s -label $t
3261                 tk_popup $ctxm $X $Y
3262         }
3263 }
3264 bind_button3 $ui_diff [list popup_diff_menu $ctxm $ctxmmg %x %y %X %Y]
3265
3266 # -- Status Bar
3267 #
3268 set main_status [::status_bar::new .status]
3269 pack .status -anchor w -side bottom -fill x
3270 $main_status show [mc "Initializing..."]
3271
3272 # -- Load geometry
3273 #
3274 catch {
3275 set gm $repo_config(gui.geometry)
3276 wm geometry . [lindex $gm 0]
3277 .vpane sash place 0 \
3278         [lindex $gm 1] \
3279         [lindex [.vpane sash coord 0] 1]
3280 .vpane.files sash place 0 \
3281         [lindex [.vpane.files sash coord 0] 0] \
3282         [lindex $gm 2]
3283 unset gm
3284 }
3285
3286 # -- Load window state
3287 #
3288 catch {
3289 set gws $repo_config(gui.wmstate)
3290 wm state . $gws
3291 unset gws
3292 }
3293
3294 # -- Key Bindings
3295 #
3296 bind $ui_comm <$M1B-Key-Return> {do_commit;break}
3297 bind $ui_comm <$M1B-Key-t> {do_add_selection;break}
3298 bind $ui_comm <$M1B-Key-T> {do_add_selection;break}
3299 bind $ui_comm <$M1B-Key-i> {do_add_all;break}
3300 bind $ui_comm <$M1B-Key-I> {do_add_all;break}
3301 bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
3302 bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
3303 bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
3304 bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
3305 bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
3306 bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
3307 bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3308 bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3309 bind $ui_comm <$M1B-Key-minus> {show_less_context;break}
3310 bind $ui_comm <$M1B-Key-KP_Subtract> {show_less_context;break}
3311 bind $ui_comm <$M1B-Key-equal> {show_more_context;break}
3312 bind $ui_comm <$M1B-Key-plus> {show_more_context;break}
3313 bind $ui_comm <$M1B-Key-KP_Add> {show_more_context;break}
3314
3315 bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
3316 bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
3317 bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
3318 bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
3319 bind $ui_diff <$M1B-Key-v> {break}
3320 bind $ui_diff <$M1B-Key-V> {break}
3321 bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3322 bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3323 bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
3324 bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
3325 bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
3326 bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
3327 bind $ui_diff <Key-k>         {catch {%W yview scroll -1 units};break}
3328 bind $ui_diff <Key-j>         {catch {%W yview scroll  1 units};break}
3329 bind $ui_diff <Key-h>         {catch {%W xview scroll -1 units};break}
3330 bind $ui_diff <Key-l>         {catch {%W xview scroll  1 units};break}
3331 bind $ui_diff <Control-Key-b> {catch {%W yview scroll -1 pages};break}
3332 bind $ui_diff <Control-Key-f> {catch {%W yview scroll  1 pages};break}
3333 bind $ui_diff <Button-1>   {focus %W}
3334
3335 if {[is_enabled branch]} {
3336         bind . <$M1B-Key-n> branch_create::dialog
3337         bind . <$M1B-Key-N> branch_create::dialog
3338         bind . <$M1B-Key-o> branch_checkout::dialog
3339         bind . <$M1B-Key-O> branch_checkout::dialog
3340         bind . <$M1B-Key-m> merge::dialog
3341         bind . <$M1B-Key-M> merge::dialog
3342 }
3343 if {[is_enabled transport]} {
3344         bind . <$M1B-Key-p> do_push_anywhere
3345         bind . <$M1B-Key-P> do_push_anywhere
3346 }
3347
3348 bind .   <Key-F5>     ui_do_rescan
3349 bind .   <$M1B-Key-r> ui_do_rescan
3350 bind .   <$M1B-Key-R> ui_do_rescan
3351 bind .   <$M1B-Key-s> do_signoff
3352 bind .   <$M1B-Key-S> do_signoff
3353 bind .   <$M1B-Key-t> do_add_selection
3354 bind .   <$M1B-Key-T> do_add_selection
3355 bind .   <$M1B-Key-i> do_add_all
3356 bind .   <$M1B-Key-I> do_add_all
3357 bind .   <$M1B-Key-minus> {show_less_context;break}
3358 bind .   <$M1B-Key-KP_Subtract> {show_less_context;break}
3359 bind .   <$M1B-Key-equal> {show_more_context;break}
3360 bind .   <$M1B-Key-plus> {show_more_context;break}
3361 bind .   <$M1B-Key-KP_Add> {show_more_context;break}
3362 bind .   <$M1B-Key-Return> do_commit
3363 foreach i [list $ui_index $ui_workdir] {
3364         bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
3365         bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
3366         bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
3367 }
3368 unset i
3369
3370 set file_lists($ui_index) [list]
3371 set file_lists($ui_workdir) [list]
3372
3373 wm title . "[appname] ([reponame]) [file normalize [file dirname [gitdir]]]"
3374 focus -force $ui_comm
3375
3376 # -- Warn the user about environmental problems.  Cygwin's Tcl
3377 #    does *not* pass its env array onto any processes it spawns.
3378 #    This means that git processes get none of our environment.
3379 #
3380 if {[is_Cygwin]} {
3381         set ignored_env 0
3382         set suggest_user {}
3383         set msg [mc "Possible environment issues exist.
3384
3385 The following environment variables are probably
3386 going to be ignored by any Git subprocess run
3387 by %s:
3388
3389 " [appname]]
3390         foreach name [array names env] {
3391                 switch -regexp -- $name {
3392                 {^GIT_INDEX_FILE$} -
3393                 {^GIT_OBJECT_DIRECTORY$} -
3394                 {^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
3395                 {^GIT_DIFF_OPTS$} -
3396                 {^GIT_EXTERNAL_DIFF$} -
3397                 {^GIT_PAGER$} -
3398                 {^GIT_TRACE$} -
3399                 {^GIT_CONFIG$} -
3400                 {^GIT_(AUTHOR|COMMITTER)_DATE$} {
3401                         append msg " - $name\n"
3402                         incr ignored_env
3403                 }
3404                 {^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
3405                         append msg " - $name\n"
3406                         incr ignored_env
3407                         set suggest_user $name
3408                 }
3409                 }
3410         }
3411         if {$ignored_env > 0} {
3412                 append msg [mc "
3413 This is due to a known issue with the
3414 Tcl binary distributed by Cygwin."]
3415
3416                 if {$suggest_user ne {}} {
3417                         append msg [mc "
3418
3419 A good replacement for %s
3420 is placing values for the user.name and
3421 user.email settings into your personal
3422 ~/.gitconfig file.
3423 " $suggest_user]
3424                 }
3425                 warn_popup $msg
3426         }
3427         unset ignored_env msg suggest_user name
3428 }
3429
3430 # -- Only initialize complex UI if we are going to stay running.
3431 #
3432 if {[is_enabled transport]} {
3433         load_all_remotes
3434
3435         set n [.mbar.remote index end]
3436         populate_remotes_menu
3437         set n [expr {[.mbar.remote index end] - $n}]
3438         if {$n > 0} {
3439                 if {[.mbar.remote type 0] eq "tearoff"} { incr n }
3440                 .mbar.remote insert $n separator
3441         }
3442         unset n
3443 }
3444
3445 if {[winfo exists $ui_comm]} {
3446         set GITGUI_BCK_exists [load_message GITGUI_BCK]
3447
3448         # -- If both our backup and message files exist use the
3449         #    newer of the two files to initialize the buffer.
3450         #
3451         if {$GITGUI_BCK_exists} {
3452                 set m [gitdir GITGUI_MSG]
3453                 if {[file isfile $m]} {
3454                         if {[file mtime [gitdir GITGUI_BCK]] > [file mtime $m]} {
3455                                 catch {file delete [gitdir GITGUI_MSG]}
3456                         } else {
3457                                 $ui_comm delete 0.0 end
3458                                 $ui_comm edit reset
3459                                 $ui_comm edit modified false
3460                                 catch {file delete [gitdir GITGUI_BCK]}
3461                                 set GITGUI_BCK_exists 0
3462                         }
3463                 }
3464                 unset m
3465         }
3466
3467         proc backup_commit_buffer {} {
3468                 global ui_comm GITGUI_BCK_exists
3469
3470                 set m [$ui_comm edit modified]
3471                 if {$m || $GITGUI_BCK_exists} {
3472                         set msg [string trim [$ui_comm get 0.0 end]]
3473                         regsub -all -line {[ \r\t]+$} $msg {} msg
3474
3475                         if {$msg eq {}} {
3476                                 if {$GITGUI_BCK_exists} {
3477                                         catch {file delete [gitdir GITGUI_BCK]}
3478                                         set GITGUI_BCK_exists 0
3479                                 }
3480                         } elseif {$m} {
3481                                 catch {
3482                                         set fd [open [gitdir GITGUI_BCK] w]
3483                                         puts -nonewline $fd $msg
3484                                         close $fd
3485                                         set GITGUI_BCK_exists 1
3486                                 }
3487                         }
3488
3489                         $ui_comm edit modified false
3490                 }
3491
3492                 set ::GITGUI_BCK_i [after 2000 backup_commit_buffer]
3493         }
3494
3495         backup_commit_buffer
3496
3497         # -- If the user has aspell available we can drive it
3498         #    in pipe mode to spellcheck the commit message.
3499         #
3500         set spell_cmd [list |]
3501         set spell_dict [get_config gui.spellingdictionary]
3502         lappend spell_cmd aspell
3503         if {$spell_dict ne {}} {
3504                 lappend spell_cmd --master=$spell_dict
3505         }
3506         lappend spell_cmd --mode=none
3507         lappend spell_cmd --encoding=utf-8
3508         lappend spell_cmd pipe
3509         if {$spell_dict eq {none}
3510          || [catch {set spell_fd [open $spell_cmd r+]} spell_err]} {
3511                 bind_button3 $ui_comm [list tk_popup $ui_comm_ctxm %X %Y]
3512         } else {
3513                 set ui_comm_spell [spellcheck::init \
3514                         $spell_fd \
3515                         $ui_comm \
3516                         $ui_comm_ctxm \
3517                 ]
3518         }
3519         unset -nocomplain spell_cmd spell_fd spell_err spell_dict
3520 }
3521
3522 lock_index begin-read
3523 if {![winfo ismapped .]} {
3524         wm deiconify .
3525 }
3526 after 1 {
3527         if {[is_enabled initialamend]} {
3528                 force_amend
3529         } else {
3530                 do_rescan
3531         }
3532
3533         if {[is_enabled nocommitmsg]} {
3534                 $ui_comm configure -state disabled -background gray
3535         }
3536 }
3537 if {[is_enabled multicommit]} {
3538         after 1000 hint_gc
3539 }
3540 if {[is_enabled retcode]} {
3541         bind . <Destroy> {+terminate_me %W}
3542 }
3543 if {$picked && [is_config_true gui.autoexplore]} {
3544         do_explore
3545 }