git-gui/git-gui.sh

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