git-gui.sh

   1 #!/bin/sh
   2 # Tcl ignores the next line -*- tcl -*- \
   3  if test "z$*" = zversion \
   4  || test "z$*" = z--version; \
   5  then \
   6         echo 'git-gui version @@GITGUI_VERSION@@'; \
   7         exit; \
   8  fi; \
   9  argv0=$0; \
  10  exec wish "$argv0" -- "$@"
  11
  12 set appvers {@@GITGUI_VERSION@@}
  13 set copyright [encoding convertfrom utf-8 {
  14 Copyright © 2006, 2007 Shawn Pearce, et. al.
  15
  16 This program is free software; you can redistribute it and/or modify
  17 it under the terms of the GNU General Public License as published by
  18 the Free Software Foundation; either version 2 of the License, or
  19 (at your option) any later version.
  20
  21 This program is distributed in the hope that it will be useful,
  22 but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 GNU General Public License for more details.
  25
  26 You should have received a copy of the GNU General Public License
  27 along with this program; if not, write to the Free Software
  28 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA}]
  29
  30 ######################################################################
  31 ##
  32 ## Tcl/Tk sanity check
  33
  34 if {[catch {package require Tcl 8.4} err]
  35  || [catch {package require Tk  8.4} err]
  36 } {
  37         catch {wm withdraw .}
  38         tk_messageBox \
  39                 -icon error \
  40                 -type ok \
  41                 -title [mc "git-gui: fatal error"] \
  42                 -message $err
  43         exit 1
  44 }
  45
  46 catch {rename send {}} ; # What an evil concept...
  47
  48 ######################################################################
  49 ##
  50 ## locate our library
  51
  52 set oguilib {@@GITGUI_LIBDIR@@}
  53 set oguirel {@@GITGUI_RELATIVE@@}
  54 if {$oguirel eq {1}} {
  55         set oguilib [file dirname [file normalize $argv0]]
  56         if {[file tail $oguilib] eq {git-core}} {
  57                 set oguilib [file dirname $oguilib]
  58         }
  59         set oguilib [file dirname $oguilib]
  60         set oguilib [file join $oguilib share git-gui lib]
  61         set oguimsg [file join $oguilib msgs]
  62 } elseif {[string match @@* $oguirel]} {
  63         set oguilib [file join [file dirname [file normalize $argv0]] lib]
  64         set oguimsg [file join [file dirname [file normalize $argv0]] po]
  65 } else {
  66         set oguimsg [file join $oguilib msgs]
  67 }
  68 unset oguirel
  69
  70 ######################################################################
  71 ##
  72 ## enable verbose loading?
  73
  74 if {![catch {set _verbose $env(GITGUI_VERBOSE)}]} {
  75         unset _verbose
  76         rename auto_load real__auto_load
  77         proc auto_load {name args} {
  78                 puts stderr "auto_load $name"
  79                 return [uplevel 1 real__auto_load $name $args]
  80         }
  81         rename source real__source
  82         proc source {name} {
  83                 puts stderr "source    $name"
  84                 uplevel 1 real__source $name
  85         }
  86 }
  87
  88 ######################################################################
  89 ##
  90 ## Internationalization (i18n) through msgcat and gettext. See
  91 ## http://www.gnu.org/software/gettext/manual/html_node/Tcl.html
  92
  93 package require msgcat
  94
  95 proc _mc_trim {fmt} {
  96         set cmk [string first @@ $fmt]
  97         if {$cmk > 0} {
  98                 return [string range $fmt 0 [expr {$cmk - 1}]]
  99         }
 100         return $fmt
 101 }
 102
 103 proc mc {en_fmt args} {
 104         set fmt [_mc_trim [::msgcat::mc $en_fmt]]
 105         if {[catch {set msg [eval [list format $fmt] $args]} err]} {
 106                 set msg [eval [list format [_mc_trim $en_fmt]] $args]
 107         }
 108         return $msg
 109 }
 110
 111 proc strcat {args} {
 112         return [join $args {}]
 113 }
 114
 115 ::msgcat::mcload $oguimsg
 116 unset oguimsg
 117
 118 ######################################################################
 119 ##
 120 ## read only globals
 121
 122 set _appname {Git Gui}
 123 set _gitdir {}
 124 set _gitexec {}
 125 set _githtmldir {}
 126 set _reponame {}
 127 set _iscygwin {}
 128 set _search_path {}
 129
 130 set _trace [lsearch -exact $argv --trace]
 131 if {$_trace >= 0} {
 132         set argv [lreplace $argv $_trace $_trace]
 133         set _trace 1
 134 } else {
 135         set _trace 0
 136 }
 137
 138 proc appname {} {
 139         global _appname
 140         return $_appname
 141 }
 142
 143 proc gitdir {args} {
 144         global _gitdir
 145         if {$args eq {}} {
 146                 return $_gitdir
 147         }
 148         return [eval [list file join $_gitdir] $args]
 149 }
 150
 151 proc gitexec {args} {
 152         global _gitexec
 153         if {$_gitexec eq {}} {
 154                 if {[catch {set _gitexec [git --exec-path]} err]} {
 155                         error "Git not installed?\n\n$err"
 156                 }
 157                 if {[is_Cygwin]} {
 158                         set _gitexec [exec cygpath \
 159                                 --windows \
 160                                 --absolute \
 161                                 $_gitexec]
 162                 } else {
 163                         set _gitexec [file normalize $_gitexec]
 164                 }
 165         }
 166         if {$args eq {}} {
 167                 return $_gitexec
 168         }
 169         return [eval [list file join $_gitexec] $args]
 170 }
 171
 172 proc githtmldir {args} {
 173         global _githtmldir
 174         if {$_githtmldir eq {}} {
 175                 if {[catch {set _githtmldir [git --html-path]}]} {
 176                         # Git not installed or option not yet supported
 177                         return {}
 178                 }
 179                 if {[is_Cygwin]} {
 180                         set _githtmldir [exec cygpath \
 181                                 --windows \
 182                                 --absolute \
 183                                 $_githtmldir]
 184                 } else {
 185                         set _githtmldir [file normalize $_githtmldir]
 186                 }
 187         }
 188         if {$args eq {}} {
 189                 return $_githtmldir
 190         }
 191         return [eval [list file join $_githtmldir] $args]
 192 }
 193
 194 proc reponame {} {
 195         return $::_reponame
 196 }
 197
 198 proc is_MacOSX {} {
 199         if {[tk windowingsystem] eq {aqua}} {
 200                 return 1
 201         }
 202         return 0
 203 }
 204
 205 proc is_Windows {} {
 206         if {$::tcl_platform(platform) eq {windows}} {
 207                 return 1
 208         }
 209         return 0
 210 }
 211
 212 proc is_Cygwin {} {
 213         global _iscygwin
 214         if {$_iscygwin eq {}} {
 215                 if {$::tcl_platform(platform) eq {windows}} {
 216                         if {[catch {set p [exec cygpath --windir]} err]} {
 217                                 set _iscygwin 0
 218                         } else {
 219                                 set _iscygwin 1
 220                         }
 221                 } else {
 222                         set _iscygwin 0
 223                 }
 224         }
 225         return $_iscygwin
 226 }
 227
 228 proc is_enabled {option} {
 229         global enabled_options
 230         if {[catch {set on $enabled_options($option)}]} {return 0}
 231         return $on
 232 }
 233
 234 proc enable_option {option} {
 235         global enabled_options
 236         set enabled_options($option) 1
 237 }
 238
 239 proc disable_option {option} {
 240         global enabled_options
 241         set enabled_options($option) 0
 242 }
 243
 244 ######################################################################
 245 ##
 246 ## config
 247
 248 proc is_many_config {name} {
 249         switch -glob -- $name {
 250         gui.recentrepo -
 251         remote.*.fetch -
 252         remote.*.push
 253                 {return 1}
 254         *
 255                 {return 0}
 256         }
 257 }
 258
 259 proc is_config_true {name} {
 260         global repo_config
 261         if {[catch {set v $repo_config($name)}]} {
 262                 return 0
 263         } elseif {$v eq {true} || $v eq {1} || $v eq {yes}} {
 264                 return 1
 265         } else {
 266                 return 0
 267         }
 268 }
 269
 270 proc get_config {name} {
 271         global repo_config
 272         if {[catch {set v $repo_config($name)}]} {
 273                 return {}
 274         } else {
 275                 return $v
 276         }
 277 }
 278
 279 ######################################################################
 280 ##
 281 ## handy utils
 282
 283 proc _trace_exec {cmd} {
 284         if {!$::_trace} return
 285         set d {}
 286         foreach v $cmd {
 287                 if {$d ne {}} {
 288                         append d { }
 289                 }
 290                 if {[regexp {[ \t\r\n'"$?*]} $v]} {
 291                         set v [sq $v]
 292                 }
 293                 append d $v
 294         }
 295         puts stderr $d
 296 }
 297
 298 proc _git_cmd {name} {
 299         global _git_cmd_path
 300
 301         if {[catch {set v $_git_cmd_path($name)}]} {
 302                 switch -- $name {
 303                   version   -
 304                 --version   -
 305                 --exec-path { return [list $::_git $name] }
 306                 }
 307
 308                 set p [gitexec git-$name$::_search_exe]
 309                 if {[file exists $p]} {
 310                         set v [list $p]
 311                 } elseif {[is_Windows] && [file exists [gitexec git-$name]]} {
 312                         # Try to determine what sort of magic will make
 313                         # git-$name go and do its thing, because native
 314                         # Tcl on Windows doesn't know it.
 315                         #
 316                         set p [gitexec git-$name]
 317                         set f [open $p r]
 318                         set s [gets $f]
 319                         close $f
 320
 321                         switch -glob -- [lindex $s 0] {
 322                         #!*sh     { set i sh     }
 323                         #!*perl   { set i perl   }
 324                         #!*python { set i python }
 325                         default   { error "git-$name is not supported: $s" }
 326                         }
 327
 328                         upvar #0 _$i interp
 329                         if {![info exists interp]} {
 330                                 set interp [_which $i]
 331                         }
 332                         if {$interp eq {}} {
 333                                 error "git-$name requires $i (not in PATH)"
 334                         }
 335                         set v [concat [list $interp] [lrange $s 1 end] [list $p]]
 336                 } else {
 337                         # Assume it is builtin to git somehow and we
 338                         # aren't actually able to see a file for it.
 339                         #
 340                         set v [list $::_git $name]
 341                 }
 342                 set _git_cmd_path($name) $v
 343         }
 344         return $v
 345 }
 346
 347 proc _which {what args} {
 348         global env _search_exe _search_path
 349
 350         if {$_search_path eq {}} {
 351                 if {[is_Cygwin] && [regexp {^(/|\.:)} $env(PATH)]} {
 352                         set _search_path [split [exec cygpath \
 353                                 --windows \
 354                                 --path \
 355                                 --absolute \
 356                                 $env(PATH)] {;}]
 357                         set _search_exe .exe
 358                 } elseif {[is_Windows]} {
 359                         set gitguidir [file dirname [info script]]
 360                         regsub -all ";" $gitguidir "\\;" gitguidir
 361                         set env(PATH) "$gitguidir;$env(PATH)"
 362                         set _search_path [split $env(PATH) {;}]
 363                         set _search_exe .exe
 364                 } else {
 365                         set _search_path [split $env(PATH) :]
 366                         set _search_exe {}
 367                 }
 368         }
 369
 370         if {[is_Windows] && [lsearch -exact $args -script] >= 0} {
 371                 set suffix {}
 372         } else {
 373                 set suffix $_search_exe
 374         }
 375
 376         foreach p $_search_path {
 377                 set p [file join $p $what$suffix]
 378                 if {[file exists $p]} {
 379                         return [file normalize $p]
 380                 }
 381         }
 382         return {}
 383 }
 384
 385 proc _lappend_nice {cmd_var} {
 386         global _nice
 387         upvar $cmd_var cmd
 388
 389         if {![info exists _nice]} {
 390                 set _nice [_which nice]
 391         }
 392         if {$_nice ne {}} {
 393                 lappend cmd $_nice
 394         }
 395 }
 396
 397 proc git {args} {
 398         set opt [list]
 399
 400         while {1} {
 401                 switch -- [lindex $args 0] {
 402                 --nice {
 403                         _lappend_nice opt
 404                 }
 405
 406                 default {
 407                         break
 408                 }
 409
 410                 }
 411
 412                 set args [lrange $args 1 end]
 413         }
 414
 415         set cmdp [_git_cmd [lindex $args 0]]
 416         set args [lrange $args 1 end]
 417
 418         _trace_exec [concat $opt $cmdp $args]
 419         set result [eval exec $opt $cmdp $args]
 420         if {$::_trace} {
 421                 puts stderr "< $result"
 422         }
 423         return $result
 424 }
 425
 426 proc _open_stdout_stderr {cmd} {
 427         _trace_exec $cmd
 428         if {[catch {
 429                         set fd [open [concat [list | ] $cmd] r]
 430                 } err]} {
 431                 if {   [lindex $cmd end] eq {2>@1}
 432                     && $err eq {can not find channel named "1"}
 433                         } {
 434                         # Older versions of Tcl 8.4 don't have this 2>@1 IO
 435                         # redirect operator.  Fallback to |& cat for those.
 436                         # The command was not actually started, so its safe
 437                         # to try to start it a second time.
 438                         #
 439                         set fd [open [concat \
 440                                 [list | ] \
 441                                 [lrange $cmd 0 end-1] \
 442                                 [list |& cat] \
 443                                 ] r]
 444                 } else {
 445                         error $err
 446                 }
 447         }
 448         fconfigure $fd -eofchar {}
 449         return $fd
 450 }
 451
 452 proc git_read {args} {
 453         set opt [list]
 454
 455         while {1} {
 456                 switch -- [lindex $args 0] {
 457                 --nice {
 458                         _lappend_nice opt
 459                 }
 460
 461                 --stderr {
 462                         lappend args 2>@1
 463                 }
 464
 465                 default {
 466                         break
 467                 }
 468
 469                 }
 470
 471                 set args [lrange $args 1 end]
 472         }
 473
 474         set cmdp [_git_cmd [lindex $args 0]]
 475         set args [lrange $args 1 end]
 476
 477         return [_open_stdout_stderr [concat $opt $cmdp $args]]
 478 }
 479
 480 proc git_write {args} {
 481         set opt [list]
 482
 483         while {1} {
 484                 switch -- [lindex $args 0] {
 485                 --nice {
 486                         _lappend_nice opt
 487                 }
 488
 489                 default {
 490                         break
 491                 }
 492
 493                 }
 494
 495                 set args [lrange $args 1 end]
 496         }
 497
 498         set cmdp [_git_cmd [lindex $args 0]]
 499         set args [lrange $args 1 end]
 500
 501         _trace_exec [concat $opt $cmdp $args]
 502         return [open [concat [list | ] $opt $cmdp $args] w]
 503 }
 504
 505 proc githook_read {hook_name args} {
 506         set pchook [gitdir hooks $hook_name]
 507         lappend args 2>@1
 508
 509         # On Windows [file executable] might lie so we need to ask
 510         # the shell if the hook is executable.  Yes that's annoying.
 511         #
 512         if {[is_Windows]} {
 513                 upvar #0 _sh interp
 514                 if {![info exists interp]} {
 515                         set interp [_which sh]
 516                 }
 517                 if {$interp eq {}} {
 518                         error "hook execution requires sh (not in PATH)"
 519                 }
 520
 521                 set scr {if test -x "$1";then exec "$@";fi}
 522                 set sh_c [list $interp -c $scr $interp $pchook]
 523                 return [_open_stdout_stderr [concat $sh_c $args]]
 524         }
 525
 526         if {[file executable $pchook]} {
 527                 return [_open_stdout_stderr [concat [list $pchook] $args]]
 528         }
 529
 530         return {}
 531 }
 532
 533 proc kill_file_process {fd} {
 534         set process [pid $fd]
 535
 536         catch {
 537                 if {[is_Windows]} {
 538                         # Use a Cygwin-specific flag to allow killing
 539                         # native Windows processes
 540                         exec kill -f $process
 541                 } else {
 542                         exec kill $process
 543                 }
 544         }
 545 }
 546
 547 proc gitattr {path attr default} {
 548         if {[catch {set r [git check-attr $attr -- $path]}]} {
 549                 set r unspecified
 550         } else {
 551                 set r [join [lrange [split $r :] 2 end] :]
 552                 regsub {^ } $r {} r
 553         }
 554         if {$r eq {unspecified}} {
 555                 return $default
 556         }
 557         return $r
 558 }
 559
 560 proc sq {value} {
 561         regsub -all ' $value "'\\''" value
 562         return "'$value'"
 563 }
 564
 565 proc load_current_branch {} {
 566         global current_branch is_detached
 567
 568         set fd [open [gitdir HEAD] r]
 569         if {[gets $fd ref] < 1} {
 570                 set ref {}
 571         }
 572         close $fd
 573
 574         set pfx {ref: refs/heads/}
 575         set len [string length $pfx]
 576         if {[string equal -length $len $pfx $ref]} {
 577                 # We're on a branch.  It might not exist.  But
 578                 # HEAD looks good enough to be a branch.
 579                 #
 580                 set current_branch [string range $ref $len end]
 581                 set is_detached 0
 582         } else {
 583                 # Assume this is a detached head.
 584                 #
 585                 set current_branch HEAD
 586                 set is_detached 1
 587         }
 588 }
 589
 590 auto_load tk_optionMenu
 591 rename tk_optionMenu real__tkOptionMenu
 592 proc tk_optionMenu {w varName args} {
 593         set m [eval real__tkOptionMenu $w $varName $args]
 594         $m configure -font font_ui
 595         $w configure -font font_ui
 596         return $m
 597 }
 598
 599 proc rmsel_tag {text} {
 600         $text tag conf sel \
 601                 -background [$text cget -background] \
 602                 -foreground [$text cget -foreground] \
 603                 -borderwidth 0
 604         $text tag conf in_sel -background lightgray
 605         bind $text <Motion> break
 606         return $text
 607 }
 608
 609 set root_exists 0
 610 bind . <Visibility> {
 611         bind . <Visibility> {}
 612         set root_exists 1
 613 }
 614
 615 if {[is_Windows]} {
 616         wm iconbitmap . -default $oguilib/git-gui.ico
 617         set ::tk::AlwaysShowSelection 1
 618
 619         # Spoof an X11 display for SSH
 620         if {![info exists env(DISPLAY)]} {
 621                 set env(DISPLAY) :9999
 622         }
 623 } else {
 624         catch {
 625                 image create photo gitlogo -width 16 -height 16
 626
 627                 gitlogo put #33CC33 -to  7  0  9  2
 628                 gitlogo put #33CC33 -to  4  2 12  4
 629                 gitlogo put #33CC33 -to  7  4  9  6
 630                 gitlogo put #CC3333 -to  4  6 12  8
 631                 gitlogo put gray26  -to  4  9  6 10
 632                 gitlogo put gray26  -to  3 10  6 12
 633                 gitlogo put gray26  -to  8  9 13 11
 634                 gitlogo put gray26  -to  8 11 10 12
 635                 gitlogo put gray26  -to 11 11 13 14
 636                 gitlogo put gray26  -to  3 12  5 14
 637                 gitlogo put gray26  -to  5 13
 638                 gitlogo put gray26  -to 10 13
 639                 gitlogo put gray26  -to  4 14 12 15
 640                 gitlogo put gray26  -to  5 15 11 16
 641                 gitlogo redither
 642
 643                 wm iconphoto . -default gitlogo
 644         }
 645 }
 646
 647 ######################################################################
 648 ##
 649 ## config defaults
 650
 651 set cursor_ptr arrow
 652 font create font_diff -family Courier -size 10
 653 font create font_ui
 654 catch {
 655         label .dummy
 656         eval font configure font_ui [font actual [.dummy cget -font]]
 657         destroy .dummy
 658 }
 659
 660 font create font_uiitalic
 661 font create font_uibold
 662 font create font_diffbold
 663 font create font_diffitalic
 664
 665 foreach class {Button Checkbutton Entry Label
 666                 Labelframe Listbox Message
 667                 Radiobutton Spinbox Text} {
 668         option add *$class.font font_ui
 669 }
 670 if {![is_MacOSX]} {
 671         option add *Menu.font font_ui
 672 }
 673 unset class
 674
 675 if {[is_Windows] || [is_MacOSX]} {
 676         option add *Menu.tearOff 0
 677 }
 678
 679 if {[is_MacOSX]} {
 680         set M1B M1
 681         set M1T Cmd
 682 } else {
 683         set M1B Control
 684         set M1T Ctrl
 685 }
 686
 687 proc bind_button3 {w cmd} {
 688         bind $w <Any-Button-3> $cmd
 689         if {[is_MacOSX]} {
 690                 # Mac OS X sends Button-2 on right click through three-button mouse,
 691                 # or through trackpad right-clicking (two-finger touch + click).
 692                 bind $w <Any-Button-2> $cmd
 693                 bind $w <Control-Button-1> $cmd
 694         }
 695 }
 696
 697 proc apply_config {} {
 698         global repo_config font_descs
 699
 700         foreach option $font_descs {
 701                 set name [lindex $option 0]
 702                 set font [lindex $option 1]
 703                 if {[catch {
 704                         set need_weight 1
 705                         foreach {cn cv} $repo_config(gui.$name) {
 706                                 if {$cn eq {-weight}} {
 707                                         set need_weight 0
 708                                 }
 709                                 font configure $font $cn $cv
 710                         }
 711                         if {$need_weight} {
 712                                 font configure $font -weight normal
 713                         }
 714                         } err]} {
 715                         error_popup [strcat [mc "Invalid font specified in %s:" "gui.$name"] "\n\n$err"]
 716                 }
 717                 foreach {cn cv} [font configure $font] {
 718                         font configure ${font}bold $cn $cv
 719                         font configure ${font}italic $cn $cv
 720                 }
 721                 font configure ${font}bold -weight bold
 722                 font configure ${font}italic -slant italic
 723         }
 724 }
 725
 726 set default_config(branch.autosetupmerge) true
 727 set default_config(merge.tool) {}
 728 set default_config(mergetool.keepbackup) true
 729 set default_config(merge.diffstat) true
 730 set default_config(merge.summary) false
 731 set default_config(merge.verbosity) 2
 732 set default_config(user.name) {}
 733 set default_config(user.email) {}
 734
 735 set default_config(gui.encoding) [encoding system]
 736 set default_config(gui.matchtrackingbranch) false
 737 set default_config(gui.pruneduringfetch) false
 738 set default_config(gui.trustmtime) false
 739 set default_config(gui.fastcopyblame) false
 740 set default_config(gui.copyblamethreshold) 40
 741 set default_config(gui.blamehistoryctx) 7
 742 set default_config(gui.diffcontext) 5
 743 set default_config(gui.commitmsgwidth) 75
 744 set default_config(gui.newbranchtemplate) {}
 745 set default_config(gui.spellingdictionary) {}
 746 set default_config(gui.fontui) [font configure font_ui]
 747 set default_config(gui.fontdiff) [font configure font_diff]
 748 # TODO: this option should be added to the git-config documentation
 749 set default_config(gui.maxfilesdisplayed) 5000
 750 set font_descs {
 751         {fontui   font_ui   {mc "Main Font"}}
 752         {fontdiff font_diff {mc "Diff/Console Font"}}
 753 }
 754
 755 ######################################################################
 756 ##
 757 ## find git
 758
 759 set _git  [_which git]
 760 if {$_git eq {}} {
 761         catch {wm withdraw .}
 762         tk_messageBox \
 763                 -icon error \
 764                 -type ok \
 765                 -title [mc "git-gui: fatal error"] \
 766                 -message [mc "Cannot find git in PATH."]
 767         exit 1
 768 }
 769
 770 ######################################################################
 771 ##
 772 ## version check
 773
 774 if {[catch {set _git_version [git --version]} err]} {
 775         catch {wm withdraw .}
 776         tk_messageBox \
 777                 -icon error \
 778                 -type ok \
 779                 -title [mc "git-gui: fatal error"] \
 780                 -message "Cannot determine Git version:
 781
 782 $err
 783
 784 [appname] requires Git 1.5.0 or later."
 785         exit 1
 786 }
 787 if {![regsub {^git version } $_git_version {} _git_version]} {
 788         catch {wm withdraw .}
 789         tk_messageBox \
 790                 -icon error \
 791                 -type ok \
 792                 -title [mc "git-gui: fatal error"] \
 793                 -message [strcat [mc "Cannot parse Git version string:"] "\n\n$_git_version"]
 794         exit 1
 795 }
 796
 797 set _real_git_version $_git_version
 798 regsub -- {[\-\.]dirty$} $_git_version {} _git_version
 799 regsub {\.[0-9]+\.g[0-9a-f]+$} $_git_version {} _git_version
 800 regsub {\.[a-zA-Z]+\.?[0-9]+$} $_git_version {} _git_version
 801 regsub {\.GIT$} $_git_version {} _git_version
 802 regsub {\.[a-zA-Z]+\.?[0-9]+$} $_git_version {} _git_version
 803
 804 if {![regexp {^[1-9]+(\.[0-9]+)+$} $_git_version]} {
 805         catch {wm withdraw .}
 806         if {[tk_messageBox \
 807                 -icon warning \
 808                 -type yesno \
 809                 -default no \
 810                 -title "[appname]: warning" \
 811                  -message [mc "Git version cannot be determined.
 812
 813 %s claims it is version '%s'.
 814
 815 %s requires at least Git 1.5.0 or later.
 816
 817 Assume '%s' is version 1.5.0?
 818 " $_git $_real_git_version [appname] $_real_git_version]] eq {yes}} {
 819                 set _git_version 1.5.0
 820         } else {
 821                 exit 1
 822         }
 823 }
 824 unset _real_git_version
 825
 826 proc git-version {args} {
 827         global _git_version
 828
 829         switch [llength $args] {
 830         0 {
 831                 return $_git_version
 832         }
 833
 834         2 {
 835                 set op [lindex $args 0]
 836                 set vr [lindex $args 1]
 837                 set cm [package vcompare $_git_version $vr]
 838                 return [expr $cm $op 0]
 839         }
 840
 841         4 {
 842                 set type [lindex $args 0]
 843                 set name [lindex $args 1]
 844                 set parm [lindex $args 2]
 845                 set body [lindex $args 3]
 846
 847                 if {($type ne {proc} && $type ne {method})} {
 848                         error "Invalid arguments to git-version"
 849                 }
 850                 if {[llength $body] < 2 || [lindex $body end-1] ne {default}} {
 851                         error "Last arm of $type $name must be default"
 852                 }
 853
 854                 foreach {op vr cb} [lrange $body 0 end-2] {
 855                         if {[git-version $op $vr]} {
 856                                 return [uplevel [list $type $name $parm $cb]]
 857                         }
 858                 }
 859
 860                 return [uplevel [list $type $name $parm [lindex $body end]]]
 861         }
 862
 863         default {
 864                 error "git-version >= x"
 865         }
 866
 867         }
 868 }
 869
 870 if {[git-version < 1.5]} {
 871         catch {wm withdraw .}
 872         tk_messageBox \
 873                 -icon error \
 874                 -type ok \
 875                 -title [mc "git-gui: fatal error"] \
 876                 -message "[appname] requires Git 1.5.0 or later.
 877
 878 You are using [git-version]:
 879
 880 [git --version]"
 881         exit 1
 882 }
 883
 884 ######################################################################
 885 ##
 886 ## configure our library
 887
 888 set idx [file join $oguilib tclIndex]
 889 if {[catch {set fd [open $idx r]} err]} {
 890         catch {wm withdraw .}
 891         tk_messageBox \
 892                 -icon error \
 893                 -type ok \
 894                 -title [mc "git-gui: fatal error"] \
 895                 -message $err
 896         exit 1
 897 }
 898 if {[gets $fd] eq {# Autogenerated by git-gui Makefile}} {
 899         set idx [list]
 900         while {[gets $fd n] >= 0} {
 901                 if {$n ne {} && ![string match #* $n]} {
 902                         lappend idx $n
 903                 }
 904         }
 905 } else {
 906         set idx {}
 907 }
 908 close $fd
 909
 910 if {$idx ne {}} {
 911         set loaded [list]
 912         foreach p $idx {
 913                 if {[lsearch -exact $loaded $p] >= 0} continue
 914                 source [file join $oguilib $p]
 915                 lappend loaded $p
 916         }
 917         unset loaded p
 918 } else {
 919         set auto_path [concat [list $oguilib] $auto_path]
 920 }
 921 unset -nocomplain idx fd
 922
 923 ######################################################################
 924 ##
 925 ## config file parsing
 926
 927 git-version proc _parse_config {arr_name args} {
 928         >= 1.5.3 {
 929                 upvar $arr_name arr
 930                 array unset arr
 931                 set buf {}
 932                 catch {
 933                         set fd_rc [eval \
 934                                 [list git_read config] \
 935                                 $args \
 936                                 [list --null --list]]
 937                         fconfigure $fd_rc -translation binary
 938                         set buf [read $fd_rc]
 939                         close $fd_rc
 940                 }
 941                 foreach line [split $buf "\0"] {
 942                         if {[regexp {^([^\n]+)\n(.*)$} $line line name value]} {
 943                                 if {[is_many_config $name]} {
 944                                         lappend arr($name) $value
 945                                 } else {
 946                                         set arr($name) $value
 947                                 }
 948                         }
 949                 }
 950         }
 951         default {
 952                 upvar $arr_name arr
 953                 array unset arr
 954                 catch {
 955                         set fd_rc [eval [list git_read config --list] $args]
 956                         while {[gets $fd_rc line] >= 0} {
 957                                 if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
 958                                         if {[is_many_config $name]} {
 959                                                 lappend arr($name) $value
 960                                         } else {
 961                                                 set arr($name) $value
 962                                         }
 963                                 }
 964                         }
 965                         close $fd_rc
 966                 }
 967         }
 968 }
 969
 970 proc load_config {include_global} {
 971         global repo_config global_config system_config default_config
 972
 973         if {$include_global} {
 974                 _parse_config system_config --system
 975                 _parse_config global_config --global
 976         }
 977         _parse_config repo_config
 978
 979         foreach name [array names default_config] {
 980                 if {[catch {set v $system_config($name)}]} {
 981                         set system_config($name) $default_config($name)
 982                 }
 983         }
 984         foreach name [array names system_config] {
 985                 if {[catch {set v $global_config($name)}]} {
 986                         set global_config($name) $system_config($name)
 987                 }
 988                 if {[catch {set v $repo_config($name)}]} {
 989                         set repo_config($name) $system_config($name)
 990                 }
 991         }
 992 }
 993
 994 ######################################################################
 995 ##
 996 ## feature option selection
 997
 998 if {[regexp {^git-(.+)$} [file tail $argv0] _junk subcommand]} {
 999         unset _junk
1000 } else {
1001         set subcommand gui
1002 }
1003 if {$subcommand eq {gui.sh}} {
1004         set subcommand gui
1005 }
1006 if {$subcommand eq {gui} && [llength $argv] > 0} {
1007         set subcommand [lindex $argv 0]
1008         set argv [lrange $argv 1 end]
1009 }
1010
1011 enable_option multicommit
1012 enable_option branch
1013 enable_option transport
1014 disable_option bare
1015
1016 switch -- $subcommand {
1017 browser -
1018 blame {
1019         enable_option bare
1020
1021         disable_option multicommit
1022         disable_option branch
1023         disable_option transport
1024 }
1025 citool {
1026         enable_option singlecommit
1027         enable_option retcode
1028
1029         disable_option multicommit
1030         disable_option branch
1031         disable_option transport
1032
1033         while {[llength $argv] > 0} {
1034                 set a [lindex $argv 0]
1035                 switch -- $a {
1036                 --amend {
1037                         enable_option initialamend
1038                 }
1039                 --nocommit {
1040                         enable_option nocommit
1041                         enable_option nocommitmsg
1042                 }
1043                 --commitmsg {
1044                         disable_option nocommitmsg
1045                 }
1046                 default {
1047                         break
1048                 }
1049                 }
1050
1051                 set argv [lrange $argv 1 end]
1052         }
1053 }
1054 }
1055
1056 ######################################################################
1057 ##
1058 ## execution environment
1059
1060 set have_tk85 [expr {[package vcompare $tk_version "8.5"] >= 0}]
1061
1062 # Suggest our implementation of askpass, if none is set
1063 if {![info exists env(SSH_ASKPASS)]} {
1064         set env(SSH_ASKPASS) [gitexec git-gui--askpass]
1065 }
1066
1067 ######################################################################
1068 ##
1069 ## repository setup
1070
1071 set picked 0
1072 if {[catch {
1073                 set _gitdir $env(GIT_DIR)
1074                 set _prefix {}
1075                 }]
1076         && [catch {
1077                 set _gitdir [git rev-parse --git-dir]
1078                 set _prefix [git rev-parse --show-prefix]
1079         } err]} {
1080         load_config 1
1081         apply_config
1082         choose_repository::pick
1083         set picked 1
1084 }
1085 if {![file isdirectory $_gitdir] && [is_Cygwin]} {
1086         catch {set _gitdir [exec cygpath --windows $_gitdir]}
1087 }
1088 if {![file isdirectory $_gitdir]} {
1089         catch {wm withdraw .}
1090         error_popup [strcat [mc "Git directory not found:"] "\n\n$_gitdir"]
1091         exit 1
1092 }
1093 if {$_prefix ne {}} {
1094         regsub -all {[^/]+/} $_prefix ../ cdup
1095         if {[catch {cd $cdup} err]} {
1096                 catch {wm withdraw .}
1097                 error_popup [strcat [mc "Cannot move to top of working directory:"] "\n\n$err"]
1098                 exit 1
1099         }
1100         unset cdup
1101 } elseif {![is_enabled bare]} {
1102         if {[lindex [file split $_gitdir] end] ne {.git}} {
1103                 catch {wm withdraw .}
1104                 error_popup [strcat [mc "Cannot use funny .git directory:"] "\n\n$_gitdir"]
1105                 exit 1
1106         }
1107         if {[catch {cd [file dirname $_gitdir]} err]} {
1108                 catch {wm withdraw .}
1109                 error_popup [strcat [mc "No working directory"] " [file dirname $_gitdir]:\n\n$err"]
1110                 exit 1
1111         }
1112 }
1113 set _reponame [file split [file normalize $_gitdir]]
1114 if {[lindex $_reponame end] eq {.git}} {
1115         set _reponame [lindex $_reponame end-1]
1116 } else {
1117         set _reponame [lindex $_reponame end]
1118 }
1119
1120 ######################################################################
1121 ##
1122 ## global init
1123
1124 set current_diff_path {}
1125 set current_diff_side {}
1126 set diff_actions [list]
1127
1128 set HEAD {}
1129 set PARENT {}
1130 set MERGE_HEAD [list]
1131 set commit_type {}
1132 set empty_tree {}
1133 set current_branch {}
1134 set is_detached 0
1135 set current_diff_path {}
1136 set is_3way_diff 0
1137 set is_submodule_diff 0
1138 set is_conflict_diff 0
1139 set selected_commit_type new
1140 set diff_empty_count 0
1141
1142 set nullid "0000000000000000000000000000000000000000"
1143 set nullid2 "0000000000000000000000000000000000000001"
1144
1145 ######################################################################
1146 ##
1147 ## task management
1148
1149 set rescan_active 0
1150 set diff_active 0
1151 set last_clicked {}
1152
1153 set disable_on_lock [list]
1154 set index_lock_type none
1155
1156 proc lock_index {type} {
1157         global index_lock_type disable_on_lock
1158
1159         if {$index_lock_type eq {none}} {
1160                 set index_lock_type $type
1161                 foreach w $disable_on_lock {
1162                         uplevel #0 $w disabled
1163                 }
1164                 return 1
1165         } elseif {$index_lock_type eq "begin-$type"} {
1166                 set index_lock_type $type
1167                 return 1
1168         }
1169         return 0
1170 }
1171
1172 proc unlock_index {} {
1173         global index_lock_type disable_on_lock
1174
1175         set index_lock_type none
1176         foreach w $disable_on_lock {
1177                 uplevel #0 $w normal
1178         }
1179 }
1180
1181 ######################################################################
1182 ##
1183 ## status
1184
1185 proc repository_state {ctvar hdvar mhvar} {
1186         global current_branch
1187         upvar $ctvar ct $hdvar hd $mhvar mh
1188
1189         set mh [list]
1190
1191         load_current_branch
1192         if {[catch {set hd [git rev-parse --verify HEAD]}]} {
1193                 set hd {}
1194                 set ct initial
1195                 return
1196         }
1197
1198         set merge_head [gitdir MERGE_HEAD]
1199         if {[file exists $merge_head]} {
1200                 set ct merge
1201                 set fd_mh [open $merge_head r]
1202                 while {[gets $fd_mh line] >= 0} {
1203                         lappend mh $line
1204                 }
1205                 close $fd_mh
1206                 return
1207         }
1208
1209         set ct normal
1210 }
1211
1212 proc PARENT {} {
1213         global PARENT empty_tree
1214
1215         set p [lindex $PARENT 0]
1216         if {$p ne {}} {
1217                 return $p
1218         }
1219         if {$empty_tree eq {}} {
1220                 set empty_tree [git mktree << {}]
1221         }
1222         return $empty_tree
1223 }
1224
1225 proc force_amend {} {
1226         global selected_commit_type
1227         global HEAD PARENT MERGE_HEAD commit_type
1228
1229         repository_state newType newHEAD newMERGE_HEAD
1230         set HEAD $newHEAD
1231         set PARENT $newHEAD
1232         set MERGE_HEAD $newMERGE_HEAD
1233         set commit_type $newType
1234
1235         set selected_commit_type amend
1236         do_select_commit_type
1237 }
1238
1239 proc rescan {after {honor_trustmtime 1}} {
1240         global HEAD PARENT MERGE_HEAD commit_type
1241         global ui_index ui_workdir ui_comm
1242         global rescan_active file_states
1243         global repo_config
1244
1245         if {$rescan_active > 0 || ![lock_index read]} return
1246
1247         repository_state newType newHEAD newMERGE_HEAD
1248         if {[string match amend* $commit_type]
1249                 && $newType eq {normal}
1250                 && $newHEAD eq $HEAD} {
1251         } else {
1252                 set HEAD $newHEAD
1253                 set PARENT $newHEAD
1254                 set MERGE_HEAD $newMERGE_HEAD
1255                 set commit_type $newType
1256         }
1257
1258         array unset file_states
1259
1260         if {!$::GITGUI_BCK_exists &&
1261                 (![$ui_comm edit modified]
1262                 || [string trim [$ui_comm get 0.0 end]] eq {})} {
1263                 if {[string match amend* $commit_type]} {
1264                 } elseif {[load_message GITGUI_MSG]} {
1265                 } elseif {[run_prepare_commit_msg_hook]} {
1266                 } elseif {[load_message MERGE_MSG]} {
1267                 } elseif {[load_message SQUASH_MSG]} {
1268                 }
1269                 $ui_comm edit reset
1270                 $ui_comm edit modified false
1271         }
1272
1273         if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
1274                 rescan_stage2 {} $after
1275         } else {
1276                 set rescan_active 1
1277                 ui_status [mc "Refreshing file status..."]
1278                 set fd_rf [git_read update-index \
1279                         -q \
1280                         --unmerged \
1281                         --ignore-missing \
1282                         --refresh \
1283                         ]
1284                 fconfigure $fd_rf -blocking 0 -translation binary
1285                 fileevent $fd_rf readable \
1286                         [list rescan_stage2 $fd_rf $after]
1287         }
1288 }
1289
1290 if {[is_Cygwin]} {
1291         set is_git_info_exclude {}
1292         proc have_info_exclude {} {
1293                 global is_git_info_exclude
1294
1295                 if {$is_git_info_exclude eq {}} {
1296                         if {[catch {exec test -f [gitdir info exclude]}]} {
1297                                 set is_git_info_exclude 0
1298                         } else {
1299                                 set is_git_info_exclude 1
1300                         }
1301                 }
1302                 return $is_git_info_exclude
1303         }
1304 } else {
1305         proc have_info_exclude {} {
1306                 return [file readable [gitdir info exclude]]
1307         }
1308 }
1309
1310 proc rescan_stage2 {fd after} {
1311         global rescan_active buf_rdi buf_rdf buf_rlo
1312
1313         if {$fd ne {}} {
1314                 read $fd
1315                 if {![eof $fd]} return
1316                 close $fd
1317         }
1318
1319         set ls_others [list --exclude-per-directory=.gitignore]
1320         if {[have_info_exclude]} {
1321                 lappend ls_others "--exclude-from=[gitdir info exclude]"
1322         }
1323         set user_exclude [get_config core.excludesfile]
1324         if {$user_exclude ne {} && [file readable $user_exclude]} {
1325                 lappend ls_others "--exclude-from=$user_exclude"
1326         }
1327
1328         set buf_rdi {}
1329         set buf_rdf {}
1330         set buf_rlo {}
1331
1332         set rescan_active 3
1333         ui_status [mc "Scanning for modified files ..."]
1334         set fd_di [git_read diff-index --cached -z [PARENT]]
1335         set fd_df [git_read diff-files -z]
1336         set fd_lo [eval git_read ls-files --others -z $ls_others]
1337
1338         fconfigure $fd_di -blocking 0 -translation binary -encoding binary
1339         fconfigure $fd_df -blocking 0 -translation binary -encoding binary
1340         fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
1341         fileevent $fd_di readable [list read_diff_index $fd_di $after]
1342         fileevent $fd_df readable [list read_diff_files $fd_df $after]
1343         fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
1344 }
1345
1346 proc load_message {file} {
1347         global ui_comm
1348
1349         set f [gitdir $file]
1350         if {[file isfile $f]} {
1351                 if {[catch {set fd [open $f r]}]} {
1352                         return 0
1353                 }
1354                 fconfigure $fd -eofchar {}
1355                 set content [string trim [read $fd]]
1356                 close $fd
1357                 regsub -all -line {[ \r\t]+$} $content {} content
1358                 $ui_comm delete 0.0 end
1359                 $ui_comm insert end $content
1360                 return 1
1361         }
1362         return 0
1363 }
1364
1365 proc run_prepare_commit_msg_hook {} {
1366         global pch_error
1367
1368         # prepare-commit-msg requires PREPARE_COMMIT_MSG exist.  From git-gui
1369         # it will be .git/MERGE_MSG (merge), .git/SQUASH_MSG (squash), or an
1370         # empty file but existant file.
1371
1372         set fd_pcm [open [gitdir PREPARE_COMMIT_MSG] a]
1373
1374         if {[file isfile [gitdir MERGE_MSG]]} {
1375                 set pcm_source "merge"
1376                 set fd_mm [open [gitdir MERGE_MSG] r]
1377                 puts -nonewline $fd_pcm [read $fd_mm]
1378                 close $fd_mm
1379         } elseif {[file isfile [gitdir SQUASH_MSG]]} {
1380                 set pcm_source "squash"
1381                 set fd_sm [open [gitdir SQUASH_MSG] r]
1382                 puts -nonewline $fd_pcm [read $fd_sm]
1383                 close $fd_sm
1384         } else {
1385                 set pcm_source ""
1386         }
1387
1388         close $fd_pcm
1389
1390         set fd_ph [githook_read prepare-commit-msg \
1391                         [gitdir PREPARE_COMMIT_MSG] $pcm_source]
1392         if {$fd_ph eq {}} {
1393                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1394                 return 0;
1395         }
1396
1397         ui_status [mc "Calling prepare-commit-msg hook..."]
1398         set pch_error {}
1399
1400         fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
1401         fileevent $fd_ph readable \
1402                 [list prepare_commit_msg_hook_wait $fd_ph]
1403
1404         return 1;
1405 }
1406
1407 proc prepare_commit_msg_hook_wait {fd_ph} {
1408         global pch_error
1409
1410         append pch_error [read $fd_ph]
1411         fconfigure $fd_ph -blocking 1
1412         if {[eof $fd_ph]} {
1413                 if {[catch {close $fd_ph}]} {
1414                         ui_status [mc "Commit declined by prepare-commit-msg hook."]
1415                         hook_failed_popup prepare-commit-msg $pch_error
1416                         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1417                         exit 1
1418                 } else {
1419                         load_message PREPARE_COMMIT_MSG
1420                 }
1421                 set pch_error {}
1422                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1423                 return
1424         }
1425         fconfigure $fd_ph -blocking 0
1426         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1427 }
1428
1429 proc read_diff_index {fd after} {
1430         global buf_rdi
1431
1432         append buf_rdi [read $fd]
1433         set c 0
1434         set n [string length $buf_rdi]
1435         while {$c < $n} {
1436                 set z1 [string first "\0" $buf_rdi $c]
1437                 if {$z1 == -1} break
1438                 incr z1
1439                 set z2 [string first "\0" $buf_rdi $z1]
1440                 if {$z2 == -1} break
1441
1442                 incr c
1443                 set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
1444                 set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
1445                 merge_state \
1446                         [encoding convertfrom $p] \
1447                         [lindex $i 4]? \
1448                         [list [lindex $i 0] [lindex $i 2]] \
1449                         [list]
1450                 set c $z2
1451                 incr c
1452         }
1453         if {$c < $n} {
1454                 set buf_rdi [string range $buf_rdi $c end]
1455         } else {
1456                 set buf_rdi {}
1457         }
1458
1459         rescan_done $fd buf_rdi $after
1460 }
1461
1462 proc read_diff_files {fd after} {
1463         global buf_rdf
1464
1465         append buf_rdf [read $fd]
1466         set c 0
1467         set n [string length $buf_rdf]
1468         while {$c < $n} {
1469                 set z1 [string first "\0" $buf_rdf $c]
1470                 if {$z1 == -1} break
1471                 incr z1
1472                 set z2 [string first "\0" $buf_rdf $z1]
1473                 if {$z2 == -1} break
1474
1475                 incr c
1476                 set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
1477                 set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
1478                 merge_state \
1479                         [encoding convertfrom $p] \
1480                         ?[lindex $i 4] \
1481                         [list] \
1482                         [list [lindex $i 0] [lindex $i 2]]
1483                 set c $z2
1484                 incr c
1485         }
1486         if {$c < $n} {
1487                 set buf_rdf [string range $buf_rdf $c end]
1488         } else {
1489                 set buf_rdf {}
1490         }
1491
1492         rescan_done $fd buf_rdf $after
1493 }
1494
1495 proc read_ls_others {fd after} {
1496         global buf_rlo
1497
1498         append buf_rlo [read $fd]
1499         set pck [split $buf_rlo "\0"]
1500         set buf_rlo [lindex $pck end]
1501         foreach p [lrange $pck 0 end-1] {
1502                 set p [encoding convertfrom $p]
1503                 if {[string index $p end] eq {/}} {
1504                         set p [string range $p 0 end-1]
1505                 }
1506                 merge_state $p ?O
1507         }
1508         rescan_done $fd buf_rlo $after
1509 }
1510
1511 proc rescan_done {fd buf after} {
1512         global rescan_active current_diff_path
1513         global file_states repo_config
1514         upvar $buf to_clear
1515
1516         if {![eof $fd]} return
1517         set to_clear {}
1518         close $fd
1519         if {[incr rescan_active -1] > 0} return
1520
1521         prune_selection
1522         unlock_index
1523         display_all_files
1524         if {$current_diff_path ne {}} { reshow_diff $after }
1525         if {$current_diff_path eq {}} { select_first_diff $after }
1526 }
1527
1528 proc prune_selection {} {
1529         global file_states selected_paths
1530
1531         foreach path [array names selected_paths] {
1532                 if {[catch {set still_here $file_states($path)}]} {
1533                         unset selected_paths($path)
1534                 }
1535         }
1536 }
1537
1538 ######################################################################
1539 ##
1540 ## ui helpers
1541
1542 proc mapicon {w state path} {
1543         global all_icons
1544
1545         if {[catch {set r $all_icons($state$w)}]} {
1546                 puts "error: no icon for $w state={$state} $path"
1547                 return file_plain
1548         }
1549         return $r
1550 }
1551
1552 proc mapdesc {state path} {
1553         global all_descs
1554
1555         if {[catch {set r $all_descs($state)}]} {
1556                 puts "error: no desc for state={$state} $path"
1557                 return $state
1558         }
1559         return $r
1560 }
1561
1562 proc ui_status {msg} {
1563         global main_status
1564         if {[info exists main_status]} {
1565                 $main_status show $msg
1566         }
1567 }
1568
1569 proc ui_ready {{test {}}} {
1570         global main_status
1571         if {[info exists main_status]} {
1572                 $main_status show [mc "Ready."] $test
1573         }
1574 }
1575
1576 proc escape_path {path} {
1577         regsub -all {\\} $path "\\\\" path
1578         regsub -all "\n" $path "\\n" path
1579         return $path
1580 }
1581
1582 proc short_path {path} {
1583         return [escape_path [lindex [file split $path] end]]
1584 }
1585
1586 set next_icon_id 0
1587 set null_sha1 [string repeat 0 40]
1588
1589 proc merge_state {path new_state {head_info {}} {index_info {}}} {
1590         global file_states next_icon_id null_sha1
1591
1592         set s0 [string index $new_state 0]
1593         set s1 [string index $new_state 1]
1594
1595         if {[catch {set info $file_states($path)}]} {
1596                 set state __
1597                 set icon n[incr next_icon_id]
1598         } else {
1599                 set state [lindex $info 0]
1600                 set icon [lindex $info 1]
1601                 if {$head_info eq {}}  {set head_info  [lindex $info 2]}
1602                 if {$index_info eq {}} {set index_info [lindex $info 3]}
1603         }
1604
1605         if     {$s0 eq {?}} {set s0 [string index $state 0]} \
1606         elseif {$s0 eq {_}} {set s0 _}
1607
1608         if     {$s1 eq {?}} {set s1 [string index $state 1]} \
1609         elseif {$s1 eq {_}} {set s1 _}
1610
1611         if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
1612                 set head_info [list 0 $null_sha1]
1613         } elseif {$s0 ne {_} && [string index $state 0] eq {_}
1614                 && $head_info eq {}} {
1615                 set head_info $index_info
1616         } elseif {$s0 eq {_} && [string index $state 0] ne {_}} {
1617                 set index_info $head_info
1618                 set head_info {}
1619         }
1620
1621         set file_states($path) [list $s0$s1 $icon \
1622                 $head_info $index_info \
1623                 ]
1624         return $state
1625 }
1626
1627 proc display_file_helper {w path icon_name old_m new_m} {
1628         global file_lists
1629
1630         if {$new_m eq {_}} {
1631                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1632                 if {$lno >= 0} {
1633                         set file_lists($w) [lreplace $file_lists($w) $lno $lno]
1634                         incr lno
1635                         $w conf -state normal
1636                         $w delete $lno.0 [expr {$lno + 1}].0
1637                         $w conf -state disabled
1638                 }
1639         } elseif {$old_m eq {_} && $new_m ne {_}} {
1640                 lappend file_lists($w) $path
1641                 set file_lists($w) [lsort -unique $file_lists($w)]
1642                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1643                 incr lno
1644                 $w conf -state normal
1645                 $w image create $lno.0 \
1646                         -align center -padx 5 -pady 1 \
1647                         -name $icon_name \
1648                         -image [mapicon $w $new_m $path]
1649                 $w insert $lno.1 "[escape_path $path]\n"
1650                 $w conf -state disabled
1651         } elseif {$old_m ne $new_m} {
1652                 $w conf -state normal
1653                 $w image conf $icon_name -image [mapicon $w $new_m $path]
1654                 $w conf -state disabled
1655         }
1656 }
1657
1658 proc display_file {path state} {
1659         global file_states selected_paths
1660         global ui_index ui_workdir
1661
1662         set old_m [merge_state $path $state]
1663         set s $file_states($path)
1664         set new_m [lindex $s 0]
1665         set icon_name [lindex $s 1]
1666
1667         set o [string index $old_m 0]
1668         set n [string index $new_m 0]
1669         if {$o eq {U}} {
1670                 set o _
1671         }
1672         if {$n eq {U}} {
1673                 set n _
1674         }
1675         display_file_helper     $ui_index $path $icon_name $o $n
1676
1677         if {[string index $old_m 0] eq {U}} {
1678                 set o U
1679         } else {
1680                 set o [string index $old_m 1]
1681         }
1682         if {[string index $new_m 0] eq {U}} {
1683                 set n U
1684         } else {
1685                 set n [string index $new_m 1]
1686         }
1687         display_file_helper     $ui_workdir $path $icon_name $o $n
1688
1689         if {$new_m eq {__}} {
1690                 unset file_states($path)
1691                 catch {unset selected_paths($path)}
1692         }
1693 }
1694
1695 proc display_all_files_helper {w path icon_name m} {
1696         global file_lists
1697
1698         lappend file_lists($w) $path
1699         set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
1700         $w image create end \
1701                 -align center -padx 5 -pady 1 \
1702                 -name $icon_name \
1703                 -image [mapicon $w $m $path]
1704         $w insert end "[escape_path $path]\n"
1705 }
1706
1707 set files_warning 0
1708 proc display_all_files {} {
1709         global ui_index ui_workdir
1710         global file_states file_lists
1711         global last_clicked
1712         global files_warning
1713
1714         $ui_index conf -state normal
1715         $ui_workdir conf -state normal
1716
1717         $ui_index delete 0.0 end
1718         $ui_workdir delete 0.0 end
1719         set last_clicked {}
1720
1721         set file_lists($ui_index) [list]
1722         set file_lists($ui_workdir) [list]
1723
1724         set to_display [lsort [array names file_states]]
1725         set display_limit [get_config gui.maxfilesdisplayed]
1726         if {[llength $to_display] > $display_limit} {
1727                 if {!$files_warning} {
1728                         # do not repeatedly warn:
1729                         set files_warning 1
1730                         info_popup [mc "Displaying only %s of %s files." \
1731                                 $display_limit [llength $to_display]]
1732                 }
1733                 set to_display [lrange $to_display 0 [expr {$display_limit-1}]]
1734         }
1735         foreach path $to_display {
1736                 set s $file_states($path)
1737                 set m [lindex $s 0]
1738                 set icon_name [lindex $s 1]
1739
1740                 set s [string index $m 0]
1741                 if {$s ne {U} && $s ne {_}} {
1742                         display_all_files_helper $ui_index $path \
1743                                 $icon_name $s
1744                 }
1745
1746                 if {[string index $m 0] eq {U}} {
1747                         set s U
1748                 } else {
1749                         set s [string index $m 1]
1750                 }
1751                 if {$s ne {_}} {
1752                         display_all_files_helper $ui_workdir $path \
1753                                 $icon_name $s
1754                 }
1755         }
1756
1757         $ui_index conf -state disabled
1758         $ui_workdir conf -state disabled
1759 }
1760
1761 ######################################################################
1762 ##
1763 ## icons
1764
1765 set filemask {
1766 #define mask_width 14
1767 #define mask_height 15
1768 static unsigned char mask_bits[] = {
1769    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1770    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1771    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
1772 }
1773
1774 image create bitmap file_plain -background white -foreground black -data {
1775 #define plain_width 14
1776 #define plain_height 15
1777 static unsigned char plain_bits[] = {
1778    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1779    0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
1780    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1781 } -maskdata $filemask
1782
1783 image create bitmap file_mod -background white -foreground blue -data {
1784 #define mod_width 14
1785 #define mod_height 15
1786 static unsigned char mod_bits[] = {
1787    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
1788    0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1789    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
1790 } -maskdata $filemask
1791
1792 image create bitmap file_fulltick -background white -foreground "#007000" -data {
1793 #define file_fulltick_width 14
1794 #define file_fulltick_height 15
1795 static unsigned char file_fulltick_bits[] = {
1796    0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
1797    0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
1798    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1799 } -maskdata $filemask
1800
1801 image create bitmap file_parttick -background white -foreground "#005050" -data {
1802 #define parttick_width 14
1803 #define parttick_height 15
1804 static unsigned char parttick_bits[] = {
1805    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
1806    0x7a, 0x14, 0x02, 0x16, 0x02, 0x13, 0x8a, 0x11, 0xda, 0x10, 0x72, 0x10,
1807    0x22, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1808 } -maskdata $filemask
1809
1810 image create bitmap file_question -background white -foreground black -data {
1811 #define file_question_width 14
1812 #define file_question_height 15
1813 static unsigned char file_question_bits[] = {
1814    0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
1815    0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
1816    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1817 } -maskdata $filemask
1818
1819 image create bitmap file_removed -background white -foreground red -data {
1820 #define file_removed_width 14
1821 #define file_removed_height 15
1822 static unsigned char file_removed_bits[] = {
1823    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1824    0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
1825    0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
1826 } -maskdata $filemask
1827
1828 image create bitmap file_merge -background white -foreground blue -data {
1829 #define file_merge_width 14
1830 #define file_merge_height 15
1831 static unsigned char file_merge_bits[] = {
1832    0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
1833    0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1834    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
1835 } -maskdata $filemask
1836
1837 image create bitmap file_statechange -background white -foreground green -data {
1838 #define file_merge_width 14
1839 #define file_merge_height 15
1840 static unsigned char file_statechange_bits[] = {
1841    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x62, 0x10,
1842    0x62, 0x10, 0xba, 0x11, 0xba, 0x11, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10,
1843    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1844 } -maskdata $filemask
1845
1846 set ui_index .vpane.files.index.list
1847 set ui_workdir .vpane.files.workdir.list
1848
1849 set all_icons(_$ui_index)   file_plain
1850 set all_icons(A$ui_index)   file_fulltick
1851 set all_icons(M$ui_index)   file_fulltick
1852 set all_icons(D$ui_index)   file_removed
1853 set all_icons(U$ui_index)   file_merge
1854 set all_icons(T$ui_index)   file_statechange
1855
1856 set all_icons(_$ui_workdir) file_plain
1857 set all_icons(M$ui_workdir) file_mod
1858 set all_icons(D$ui_workdir) file_question
1859 set all_icons(U$ui_workdir) file_merge
1860 set all_icons(O$ui_workdir) file_plain
1861 set all_icons(T$ui_workdir) file_statechange
1862
1863 set max_status_desc 0
1864 foreach i {
1865                 {__ {mc "Unmodified"}}
1866
1867                 {_M {mc "Modified, not staged"}}
1868                 {M_ {mc "Staged for commit"}}
1869                 {MM {mc "Portions staged for commit"}}
1870                 {MD {mc "Staged for commit, missing"}}
1871
1872                 {_T {mc "File type changed, not staged"}}
1873                 {T_ {mc "File type changed, staged"}}
1874
1875                 {_O {mc "Untracked, not staged"}}
1876                 {A_ {mc "Staged for commit"}}
1877                 {AM {mc "Portions staged for commit"}}
1878                 {AD {mc "Staged for commit, missing"}}
1879
1880                 {_D {mc "Missing"}}
1881                 {D_ {mc "Staged for removal"}}
1882                 {DO {mc "Staged for removal, still present"}}
1883
1884                 {_U {mc "Requires merge resolution"}}
1885                 {U_ {mc "Requires merge resolution"}}
1886                 {UU {mc "Requires merge resolution"}}
1887                 {UM {mc "Requires merge resolution"}}
1888                 {UD {mc "Requires merge resolution"}}
1889                 {UT {mc "Requires merge resolution"}}
1890         } {
1891         set text [eval [lindex $i 1]]
1892         if {$max_status_desc < [string length $text]} {
1893                 set max_status_desc [string length $text]
1894         }
1895         set all_descs([lindex $i 0]) $text
1896 }
1897 unset i
1898
1899 ######################################################################
1900 ##
1901 ## util
1902
1903 proc scrollbar2many {list mode args} {
1904         foreach w $list {eval $w $mode $args}
1905 }
1906
1907 proc many2scrollbar {list mode sb top bottom} {
1908         $sb set $top $bottom
1909         foreach w $list {$w $mode moveto $top}
1910 }
1911
1912 proc incr_font_size {font {amt 1}} {
1913         set sz [font configure $font -size]
1914         incr sz $amt
1915         font configure $font -size $sz
1916         font configure ${font}bold -size $sz
1917         font configure ${font}italic -size $sz
1918 }
1919
1920 ######################################################################
1921 ##
1922 ## ui commands
1923
1924 set starting_gitk_msg [mc "Starting gitk... please wait..."]
1925
1926 proc do_gitk {revs} {
1927         # -- Always start gitk through whatever we were loaded with.  This
1928         #    lets us bypass using shell process on Windows systems.
1929         #
1930         set exe [_which gitk -script]
1931         set cmd [list [info nameofexecutable] $exe]
1932         if {$exe eq {}} {
1933                 error_popup [mc "Couldn't find gitk in PATH"]
1934         } else {
1935                 global env
1936
1937                 if {[info exists env(GIT_DIR)]} {
1938                         set old_GIT_DIR $env(GIT_DIR)
1939                 } else {
1940                         set old_GIT_DIR {}
1941                 }
1942
1943                 set pwd [pwd]
1944                 cd [file dirname [gitdir]]
1945                 set env(GIT_DIR) [file tail [gitdir]]
1946
1947                 eval exec $cmd $revs "--" "--" &
1948
1949                 if {$old_GIT_DIR eq {}} {
1950                         unset env(GIT_DIR)
1951                 } else {
1952                         set env(GIT_DIR) $old_GIT_DIR
1953                 }
1954                 cd $pwd
1955
1956                 ui_status $::starting_gitk_msg
1957                 after 10000 {
1958                         ui_ready $starting_gitk_msg
1959                 }
1960         }
1961 }
1962
1963 proc do_explore {} {
1964         set explorer {}
1965         if {[is_Cygwin] || [is_Windows]} {
1966                 set explorer "explorer.exe"
1967         } elseif {[is_MacOSX]} {
1968                 set explorer "open"
1969         } else {
1970                 # freedesktop.org-conforming system is our best shot
1971                 set explorer "xdg-open"
1972         }
1973         eval exec $explorer [list [file nativename [file dirname [gitdir]]]] &
1974 }
1975
1976 set is_quitting 0
1977 set ret_code    1
1978
1979 proc terminate_me {win} {
1980         global ret_code
1981         if {$win ne {.}} return
1982         exit $ret_code
1983 }
1984
1985 proc do_quit {{rc {1}}} {
1986         global ui_comm is_quitting repo_config commit_type
1987         global GITGUI_BCK_exists GITGUI_BCK_i
1988         global ui_comm_spell
1989         global ret_code
1990
1991         if {$is_quitting} return
1992         set is_quitting 1
1993
1994         if {[winfo exists $ui_comm]} {
1995                 # -- Stash our current commit buffer.
1996                 #
1997                 set save [gitdir GITGUI_MSG]
1998                 if {$GITGUI_BCK_exists && ![$ui_comm edit modified]} {
1999                         file rename -force [gitdir GITGUI_BCK] $save
2000                         set GITGUI_BCK_exists 0
2001                 } else {
2002                         set msg [string trim [$ui_comm get 0.0 end]]
2003                         regsub -all -line {[ \r\t]+$} $msg {} msg
2004                         if {(![string match amend* $commit_type]
2005                                 || [$ui_comm edit modified])
2006                                 && $msg ne {}} {
2007                                 catch {
2008                                         set fd [open $save w]
2009                                         puts -nonewline $fd $msg
2010                                         close $fd
2011                                 }
2012                         } else {
2013                                 catch {file delete $save}
2014                         }
2015                 }
2016
2017                 # -- Cancel our spellchecker if its running.
2018                 #
2019                 if {[info exists ui_comm_spell]} {
2020                         $ui_comm_spell stop
2021                 }
2022
2023                 # -- Remove our editor backup, its not needed.
2024                 #
2025                 after cancel $GITGUI_BCK_i
2026                 if {$GITGUI_BCK_exists} {
2027                         catch {file delete [gitdir GITGUI_BCK]}
2028                 }
2029
2030                 # -- Stash our current window geometry into this repository.
2031                 #
2032                 set cfg_wmstate [wm state .]
2033                 if {[catch {set rc_wmstate $repo_config(gui.wmstate)}]} {
2034                         set rc_wmstate {}
2035                 }
2036                 if {$cfg_wmstate ne $rc_wmstate} {
2037                         catch {git config gui.wmstate $cfg_wmstate}
2038                 }
2039                 if {$cfg_wmstate eq {zoomed}} {
2040                         # on Windows wm geometry will lie about window
2041                         # position (but not size) when window is zoomed
2042                         # restore the window before querying wm geometry
2043                         wm state . normal
2044                 }
2045                 set cfg_geometry [list]
2046                 lappend cfg_geometry [wm geometry .]
2047                 lappend cfg_geometry [lindex [.vpane sash coord 0] 0]
2048                 lappend cfg_geometry [lindex [.vpane.files sash coord 0] 1]
2049                 if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
2050                         set rc_geometry {}
2051                 }
2052                 if {$cfg_geometry ne $rc_geometry} {
2053                         catch {git config gui.geometry $cfg_geometry}
2054                 }
2055         }
2056
2057         set ret_code $rc
2058
2059         # Briefly enable send again, working around Tk bug
2060         # http://sourceforge.net/tracker/?func=detail&atid=112997&aid=1821174&group_id=12997
2061         tk appname [appname]
2062
2063         destroy .
2064 }
2065
2066 proc do_rescan {} {
2067         rescan ui_ready
2068 }
2069
2070 proc ui_do_rescan {} {
2071         rescan {force_first_diff ui_ready}
2072 }
2073
2074 proc do_commit {} {
2075         commit_tree
2076 }
2077
2078 proc next_diff {{after {}}} {
2079         global next_diff_p next_diff_w next_diff_i
2080         show_diff $next_diff_p $next_diff_w {} {} $after
2081 }
2082
2083 proc find_anchor_pos {lst name} {
2084         set lid [lsearch -sorted -exact $lst $name]
2085
2086         if {$lid == -1} {
2087                 set lid 0
2088                 foreach lname $lst {
2089                         if {$lname >= $name} break
2090                         incr lid
2091                 }
2092         }
2093
2094         return $lid
2095 }
2096
2097 proc find_file_from {flist idx delta path mmask} {
2098         global file_states
2099
2100         set len [llength $flist]
2101         while {$idx >= 0 && $idx < $len} {
2102                 set name [lindex $flist $idx]
2103
2104                 if {$name ne $path && [info exists file_states($name)]} {
2105                         set state [lindex $file_states($name) 0]
2106
2107                         if {$mmask eq {} || [regexp $mmask $state]} {
2108                                 return $idx
2109                         }
2110                 }
2111
2112                 incr idx $delta
2113         }
2114
2115         return {}
2116 }
2117
2118 proc find_next_diff {w path {lno {}} {mmask {}}} {
2119         global next_diff_p next_diff_w next_diff_i
2120         global file_lists ui_index ui_workdir
2121
2122         set flist $file_lists($w)
2123         if {$lno eq {}} {
2124                 set lno [find_anchor_pos $flist $path]
2125         } else {
2126                 incr lno -1
2127         }
2128
2129         if {$mmask ne {} && ![regexp {(^\^)|(\$$)} $mmask]} {
2130                 if {$w eq $ui_index} {
2131                         set mmask "^$mmask"
2132                 } else {
2133                         set mmask "$mmask\$"
2134                 }
2135         }
2136
2137         set idx [find_file_from $flist $lno 1 $path $mmask]
2138         if {$idx eq {}} {
2139                 incr lno -1
2140                 set idx [find_file_from $flist $lno -1 $path $mmask]
2141         }
2142
2143         if {$idx ne {}} {
2144                 set next_diff_w $w
2145                 set next_diff_p [lindex $flist $idx]
2146                 set next_diff_i [expr {$idx+1}]
2147                 return 1
2148         } else {
2149                 return 0
2150         }
2151 }
2152
2153 proc next_diff_after_action {w path {lno {}} {mmask {}}} {
2154         global current_diff_path
2155
2156         if {$path ne $current_diff_path} {
2157                 return {}
2158         } elseif {[find_next_diff $w $path $lno $mmask]} {
2159                 return {next_diff;}
2160         } else {
2161                 return {reshow_diff;}
2162         }
2163 }
2164
2165 proc select_first_diff {after} {
2166         global ui_workdir
2167
2168         if {[find_next_diff $ui_workdir {} 1 {^_?U}] ||
2169             [find_next_diff $ui_workdir {} 1 {[^O]$}]} {
2170                 next_diff $after
2171         } else {
2172                 uplevel #0 $after
2173         }
2174 }
2175
2176 proc force_first_diff {after} {
2177         global ui_workdir current_diff_path file_states
2178
2179         if {[info exists file_states($current_diff_path)]} {
2180                 set state [lindex $file_states($current_diff_path) 0]
2181         } else {
2182                 set state {OO}
2183         }
2184
2185         set reselect 0
2186         if {[string first {U} $state] >= 0} {
2187                 # Already a conflict, do nothing
2188         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {^_?U}]} {
2189                 set reselect 1
2190         } elseif {[string index $state 1] ne {O}} {
2191                 # Already a diff & no conflicts, do nothing
2192         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {[^O]$}]} {
2193                 set reselect 1
2194         }
2195
2196         if {$reselect} {
2197                 next_diff $after
2198         } else {
2199                 uplevel #0 $after
2200         }
2201 }
2202
2203 proc toggle_or_diff {w x y} {
2204         global file_states file_lists current_diff_path ui_index ui_workdir
2205         global last_clicked selected_paths
2206
2207         set pos [split [$w index @$x,$y] .]
2208         set lno [lindex $pos 0]
2209         set col [lindex $pos 1]
2210         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2211         if {$path eq {}} {
2212                 set last_clicked {}
2213                 return
2214         }
2215
2216         set last_clicked [list $w $lno]
2217         array unset selected_paths
2218         $ui_index tag remove in_sel 0.0 end
2219         $ui_workdir tag remove in_sel 0.0 end
2220
2221         # Determine the state of the file
2222         if {[info exists file_states($path)]} {
2223                 set state [lindex $file_states($path) 0]
2224         } else {
2225                 set state {__}
2226         }
2227
2228         # Restage the file, or simply show the diff
2229         if {$col == 0 && $y > 1} {
2230                 # Conflicts need special handling
2231                 if {[string first {U} $state] >= 0} {
2232                         # $w must always be $ui_workdir, but...
2233                         if {$w ne $ui_workdir} { set lno {} }
2234                         merge_stage_workdir $path $lno
2235                         return
2236                 }
2237
2238                 if {[string index $state 1] eq {O}} {
2239                         set mmask {}
2240                 } else {
2241                         set mmask {[^O]}
2242                 }
2243
2244                 set after [next_diff_after_action $w $path $lno $mmask]
2245
2246                 if {$w eq $ui_index} {
2247                         update_indexinfo \
2248                                 "Unstaging [short_path $path] from commit" \
2249                                 [list $path] \
2250                                 [concat $after [list ui_ready]]
2251                 } elseif {$w eq $ui_workdir} {
2252                         update_index \
2253                                 "Adding [short_path $path]" \
2254                                 [list $path] \
2255                                 [concat $after [list ui_ready]]
2256                 }
2257         } else {
2258                 show_diff $path $w $lno
2259         }
2260 }
2261
2262 proc add_one_to_selection {w x y} {
2263         global file_lists last_clicked selected_paths
2264
2265         set lno [lindex [split [$w index @$x,$y] .] 0]
2266         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2267         if {$path eq {}} {
2268                 set last_clicked {}
2269                 return
2270         }
2271
2272         if {$last_clicked ne {}
2273                 && [lindex $last_clicked 0] ne $w} {
2274                 array unset selected_paths
2275                 [lindex $last_clicked 0] tag remove in_sel 0.0 end
2276         }
2277
2278         set last_clicked [list $w $lno]
2279         if {[catch {set in_sel $selected_paths($path)}]} {
2280                 set in_sel 0
2281         }
2282         if {$in_sel} {
2283                 unset selected_paths($path)
2284                 $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
2285         } else {
2286                 set selected_paths($path) 1
2287                 $w tag add in_sel $lno.0 [expr {$lno + 1}].0
2288         }
2289 }
2290
2291 proc add_range_to_selection {w x y} {
2292         global file_lists last_clicked selected_paths
2293
2294         if {[lindex $last_clicked 0] ne $w} {
2295                 toggle_or_diff $w $x $y
2296                 return
2297         }
2298
2299         set lno [lindex [split [$w index @$x,$y] .] 0]
2300         set lc [lindex $last_clicked 1]
2301         if {$lc < $lno} {
2302                 set begin $lc
2303                 set end $lno
2304         } else {
2305                 set begin $lno
2306                 set end $lc
2307         }
2308
2309         foreach path [lrange $file_lists($w) \
2310                 [expr {$begin - 1}] \
2311                 [expr {$end - 1}]] {
2312                 set selected_paths($path) 1
2313         }
2314         $w tag add in_sel $begin.0 [expr {$end + 1}].0
2315 }
2316
2317 proc show_more_context {} {
2318         global repo_config
2319         if {$repo_config(gui.diffcontext) < 99} {
2320                 incr repo_config(gui.diffcontext)
2321                 reshow_diff
2322         }
2323 }
2324
2325 proc show_less_context {} {
2326         global repo_config
2327         if {$repo_config(gui.diffcontext) > 1} {
2328                 incr repo_config(gui.diffcontext) -1
2329                 reshow_diff
2330         }
2331 }
2332
2333 ######################################################################
2334 ##
2335 ## ui construction
2336
2337 load_config 0
2338 apply_config
2339 set ui_comm {}
2340
2341 # -- Menu Bar
2342 #
2343 menu .mbar -tearoff 0
2344 if {[is_MacOSX]} {
2345         # -- Apple Menu (Mac OS X only)
2346         #
2347         .mbar add cascade -label Apple -menu .mbar.apple
2348         menu .mbar.apple
2349 }
2350 .mbar add cascade -label [mc Repository] -menu .mbar.repository
2351 .mbar add cascade -label [mc Edit] -menu .mbar.edit
2352 if {[is_enabled branch]} {
2353         .mbar add cascade -label [mc Branch] -menu .mbar.branch
2354 }
2355 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2356         .mbar add cascade -label [mc Commit@@noun] -menu .mbar.commit
2357 }
2358 if {[is_enabled transport]} {
2359         .mbar add cascade -label [mc Merge] -menu .mbar.merge
2360         .mbar add cascade -label [mc Remote] -menu .mbar.remote
2361 }
2362 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2363         .mbar add cascade -label [mc Tools] -menu .mbar.tools
2364 }
2365
2366 # -- Repository Menu
2367 #
2368 menu .mbar.repository
2369
2370 .mbar.repository add command \
2371         -label [mc "Explore Working Copy"] \
2372         -command {do_explore}
2373 .mbar.repository add separator
2374
2375 .mbar.repository add command \
2376         -label [mc "Browse Current Branch's Files"] \
2377         -command {browser::new $current_branch}
2378 set ui_browse_current [.mbar.repository index last]
2379 .mbar.repository add command \
2380         -label [mc "Browse Branch Files..."] \
2381         -command browser_open::dialog
2382 .mbar.repository add separator
2383
2384 .mbar.repository add command \
2385         -label [mc "Visualize Current Branch's History"] \
2386         -command {do_gitk $current_branch}
2387 set ui_visualize_current [.mbar.repository index last]
2388 .mbar.repository add command \
2389         -label [mc "Visualize All Branch History"] \
2390         -command {do_gitk --all}
2391 .mbar.repository add separator
2392
2393 proc current_branch_write {args} {
2394         global current_branch
2395         .mbar.repository entryconf $::ui_browse_current \
2396                 -label [mc "Browse %s's Files" $current_branch]
2397         .mbar.repository entryconf $::ui_visualize_current \
2398                 -label [mc "Visualize %s's History" $current_branch]
2399 }
2400 trace add variable current_branch write current_branch_write
2401
2402 if {[is_enabled multicommit]} {
2403         .mbar.repository add command -label [mc "Database Statistics"] \
2404                 -command do_stats
2405
2406         .mbar.repository add command -label [mc "Compress Database"] \
2407                 -command do_gc
2408
2409         .mbar.repository add command -label [mc "Verify Database"] \
2410                 -command do_fsck_objects
2411
2412         .mbar.repository add separator
2413
2414         if {[is_Cygwin]} {
2415                 .mbar.repository add command \
2416                         -label [mc "Create Desktop Icon"] \
2417                         -command do_cygwin_shortcut
2418         } elseif {[is_Windows]} {
2419                 .mbar.repository add command \
2420                         -label [mc "Create Desktop Icon"] \
2421                         -command do_windows_shortcut
2422         } elseif {[is_MacOSX]} {
2423                 .mbar.repository add command \
2424                         -label [mc "Create Desktop Icon"] \
2425                         -command do_macosx_app
2426         }
2427 }
2428
2429 if {[is_MacOSX]} {
2430         proc ::tk::mac::Quit {args} { do_quit }
2431 } else {
2432         .mbar.repository add command -label [mc Quit] \
2433                 -command do_quit \
2434                 -accelerator $M1T-Q
2435 }
2436
2437 # -- Edit Menu
2438 #
2439 menu .mbar.edit
2440 .mbar.edit add command -label [mc Undo] \
2441         -command {catch {[focus] edit undo}} \
2442         -accelerator $M1T-Z
2443 .mbar.edit add command -label [mc Redo] \
2444         -command {catch {[focus] edit redo}} \
2445         -accelerator $M1T-Y
2446 .mbar.edit add separator
2447 .mbar.edit add command -label [mc Cut] \
2448         -command {catch {tk_textCut [focus]}} \
2449         -accelerator $M1T-X
2450 .mbar.edit add command -label [mc Copy] \
2451         -command {catch {tk_textCopy [focus]}} \
2452         -accelerator $M1T-C
2453 .mbar.edit add command -label [mc Paste] \
2454         -command {catch {tk_textPaste [focus]; [focus] see insert}} \
2455         -accelerator $M1T-V
2456 .mbar.edit add command -label [mc Delete] \
2457         -command {catch {[focus] delete sel.first sel.last}} \
2458         -accelerator Del
2459 .mbar.edit add separator
2460 .mbar.edit add command -label [mc "Select All"] \
2461         -command {catch {[focus] tag add sel 0.0 end}} \
2462         -accelerator $M1T-A
2463
2464 # -- Branch Menu
2465 #
2466 if {[is_enabled branch]} {
2467         menu .mbar.branch
2468
2469         .mbar.branch add command -label [mc "Create..."] \
2470                 -command branch_create::dialog \
2471                 -accelerator $M1T-N
2472         lappend disable_on_lock [list .mbar.branch entryconf \
2473                 [.mbar.branch index last] -state]
2474
2475         .mbar.branch add command -label [mc "Checkout..."] \
2476                 -command branch_checkout::dialog \
2477                 -accelerator $M1T-O
2478         lappend disable_on_lock [list .mbar.branch entryconf \
2479                 [.mbar.branch index last] -state]
2480
2481         .mbar.branch add command -label [mc "Rename..."] \
2482                 -command branch_rename::dialog
2483         lappend disable_on_lock [list .mbar.branch entryconf \
2484                 [.mbar.branch index last] -state]
2485
2486         .mbar.branch add command -label [mc "Delete..."] \
2487                 -command branch_delete::dialog
2488         lappend disable_on_lock [list .mbar.branch entryconf \
2489                 [.mbar.branch index last] -state]
2490
2491         .mbar.branch add command -label [mc "Reset..."] \
2492                 -command merge::reset_hard
2493         lappend disable_on_lock [list .mbar.branch entryconf \
2494                 [.mbar.branch index last] -state]
2495 }
2496
2497 # -- Commit Menu
2498 #
2499 proc commit_btn_caption {} {
2500         if {[is_enabled nocommit]} {
2501                 return [mc "Done"]
2502         } else {
2503                 return [mc Commit@@verb]
2504         }
2505 }
2506
2507 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2508         menu .mbar.commit
2509
2510         if {![is_enabled nocommit]} {
2511                 .mbar.commit add radiobutton \
2512                         -label [mc "New Commit"] \
2513                         -command do_select_commit_type \
2514                         -variable selected_commit_type \
2515                         -value new
2516                 lappend disable_on_lock \
2517                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2518
2519                 .mbar.commit add radiobutton \
2520                         -label [mc "Amend Last Commit"] \
2521                         -command do_select_commit_type \
2522                         -variable selected_commit_type \
2523                         -value amend
2524                 lappend disable_on_lock \
2525                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2526
2527                 .mbar.commit add separator
2528         }
2529
2530         .mbar.commit add command -label [mc Rescan] \
2531                 -command ui_do_rescan \
2532                 -accelerator F5
2533         lappend disable_on_lock \
2534                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2535
2536         .mbar.commit add command -label [mc "Stage To Commit"] \
2537                 -command do_add_selection \
2538                 -accelerator $M1T-T
2539         lappend disable_on_lock \
2540                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2541
2542         .mbar.commit add command -label [mc "Stage Changed Files To Commit"] \
2543                 -command do_add_all \
2544                 -accelerator $M1T-I
2545         lappend disable_on_lock \
2546                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2547
2548         .mbar.commit add command -label [mc "Unstage From Commit"] \
2549                 -command do_unstage_selection \
2550                 -accelerator $M1T-U
2551         lappend disable_on_lock \
2552                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2553
2554         .mbar.commit add command -label [mc "Revert Changes"] \
2555                 -command do_revert_selection \
2556                 -accelerator $M1T-J
2557         lappend disable_on_lock \
2558                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2559
2560         .mbar.commit add separator
2561
2562         .mbar.commit add command -label [mc "Show Less Context"] \
2563                 -command show_less_context \
2564                 -accelerator $M1T-\-
2565
2566         .mbar.commit add command -label [mc "Show More Context"] \
2567                 -command show_more_context \
2568                 -accelerator $M1T-=
2569
2570         .mbar.commit add separator
2571
2572         if {![is_enabled nocommitmsg]} {
2573                 .mbar.commit add command -label [mc "Sign Off"] \
2574                         -command do_signoff \
2575                         -accelerator $M1T-S
2576         }
2577
2578         .mbar.commit add command -label [commit_btn_caption] \
2579                 -command do_commit \
2580                 -accelerator $M1T-Return
2581         lappend disable_on_lock \
2582                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2583 }
2584
2585 # -- Merge Menu
2586 #
2587 if {[is_enabled branch]} {
2588         menu .mbar.merge
2589         .mbar.merge add command -label [mc "Local Merge..."] \
2590                 -command merge::dialog \
2591                 -accelerator $M1T-M
2592         lappend disable_on_lock \
2593                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2594         .mbar.merge add command -label [mc "Abort Merge..."] \
2595                 -command merge::reset_hard
2596         lappend disable_on_lock \
2597                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2598 }
2599
2600 # -- Transport Menu
2601 #
2602 if {[is_enabled transport]} {
2603         menu .mbar.remote
2604
2605         .mbar.remote add command \
2606                 -label [mc "Add..."] \
2607                 -command remote_add::dialog \
2608                 -accelerator $M1T-A
2609         .mbar.remote add command \
2610                 -label [mc "Push..."] \
2611                 -command do_push_anywhere \
2612                 -accelerator $M1T-P
2613         .mbar.remote add command \
2614                 -label [mc "Delete Branch..."] \
2615                 -command remote_branch_delete::dialog
2616 }
2617
2618 if {[is_MacOSX]} {
2619         proc ::tk::mac::ShowPreferences {} {do_options}
2620 } else {
2621         # -- Edit Menu
2622         #
2623         .mbar.edit add separator
2624         .mbar.edit add command -label [mc "Options..."] \
2625                 -command do_options
2626 }
2627
2628 # -- Tools Menu
2629 #
2630 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2631         set tools_menubar .mbar.tools
2632         menu $tools_menubar
2633         $tools_menubar add separator
2634         $tools_menubar add command -label [mc "Add..."] -command tools_add::dialog
2635         $tools_menubar add command -label [mc "Remove..."] -command tools_remove::dialog
2636         set tools_tailcnt 3
2637         if {[array names repo_config guitool.*.cmd] ne {}} {
2638                 tools_populate_all
2639         }
2640 }
2641
2642 # -- Help Menu
2643 #
2644 .mbar add cascade -label [mc Help] -menu .mbar.help
2645 menu .mbar.help
2646
2647 if {[is_MacOSX]} {
2648         .mbar.apple add command -label [mc "About %s" [appname]] \
2649                 -command do_about
2650         .mbar.apple add separator
2651 } else {
2652         .mbar.help add command -label [mc "About %s" [appname]] \
2653                 -command do_about
2654 }
2655 . configure -menu .mbar
2656
2657 set doc_path [githtmldir]
2658 if {$doc_path ne {}} {
2659         set doc_path [file join $doc_path index.html]
2660
2661         if {[is_Cygwin]} {
2662                 set doc_path [exec cygpath --mixed $doc_path]
2663         }
2664 }
2665
2666 if {[file isfile $doc_path]} {
2667         set doc_url "file:$doc_path"
2668 } else {
2669         set doc_url {http://www.kernel.org/pub/software/scm/git/docs/}
2670 }
2671
2672 proc start_browser {url} {
2673         git "web--browse" $url
2674 }
2675
2676 .mbar.help add command -label [mc "Online Documentation"] \
2677         -command [list start_browser $doc_url]
2678
2679 .mbar.help add command -label [mc "Show SSH Key"] \
2680         -command do_ssh_key
2681
2682 unset doc_path doc_url
2683
2684 # -- Standard bindings
2685 #
2686 wm protocol . WM_DELETE_WINDOW do_quit
2687 bind all <$M1B-Key-q> do_quit
2688 bind all <$M1B-Key-Q> do_quit
2689 bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
2690 bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
2691
2692 set subcommand_args {}
2693 proc usage {} {
2694         puts stderr "usage: $::argv0 $::subcommand $::subcommand_args"
2695         exit 1
2696 }
2697
2698 proc normalize_relpath {path} {
2699         set elements {}
2700         foreach item [file split $path] {
2701                 if {$item eq {.}} continue
2702                 if {$item eq {..} && [llength $elements] > 0
2703                     && [lindex $elements end] ne {..}} {
2704                         set elements [lrange $elements 0 end-1]
2705                         continue
2706                 }
2707                 lappend elements $item
2708         }
2709         return [eval file join $elements]
2710 }
2711
2712 # -- Not a normal commit type invocation?  Do that instead!
2713 #
2714 switch -- $subcommand {
2715 browser -
2716 blame {
2717         if {$subcommand eq "blame"} {
2718                 set subcommand_args {[--line=<num>] rev? path}
2719         } else {
2720                 set subcommand_args {rev? path}
2721         }
2722         if {$argv eq {}} usage
2723         set head {}
2724         set path {}
2725         set jump_spec {}
2726         set is_path 0
2727         foreach a $argv {
2728                 if {$is_path || [file exists $_prefix$a]} {
2729                         if {$path ne {}} usage
2730                         set path [normalize_relpath $_prefix$a]
2731                         break
2732                 } elseif {$a eq {--}} {
2733                         if {$path ne {}} {
2734                                 if {$head ne {}} usage
2735                                 set head $path
2736                                 set path {}
2737                         }
2738                         set is_path 1
2739                 } elseif {[regexp {^--line=(\d+)$} $a a lnum]} {
2740                         if {$jump_spec ne {} || $head ne {}} usage
2741                         set jump_spec [list $lnum]
2742                 } elseif {$head eq {}} {
2743                         if {$head ne {}} usage
2744                         set head $a
2745                         set is_path 1
2746                 } else {
2747                         usage
2748                 }
2749         }
2750         unset is_path
2751
2752         if {$head ne {} && $path eq {}} {
2753                 set path [normalize_relpath $_prefix$head]
2754                 set head {}
2755         }
2756
2757         if {$head eq {}} {
2758                 load_current_branch
2759         } else {
2760                 if {[regexp {^[0-9a-f]{1,39}$} $head]} {
2761                         if {[catch {
2762                                         set head [git rev-parse --verify $head]
2763                                 } err]} {
2764                                 puts stderr $err
2765                                 exit 1
2766                         }
2767                 }
2768                 set current_branch $head
2769         }
2770
2771         switch -- $subcommand {
2772         browser {
2773                 if {$jump_spec ne {}} usage
2774                 if {$head eq {}} {
2775                         if {$path ne {} && [file isdirectory $path]} {
2776                                 set head $current_branch
2777                         } else {
2778                                 set head $path
2779                                 set path {}
2780                         }
2781                 }
2782                 browser::new $head $path
2783         }
2784         blame   {
2785                 if {$head eq {} && ![file exists $path]} {
2786                         puts stderr [mc "fatal: cannot stat path %s: No such file or directory" $path]
2787                         exit 1
2788                 }
2789                 blame::new $head $path $jump_spec
2790         }
2791         }
2792         return
2793 }
2794 citool -
2795 gui {
2796         if {[llength $argv] != 0} {
2797                 puts -nonewline stderr "usage: $argv0"
2798                 if {$subcommand ne {gui}
2799                         && [file tail $argv0] ne "git-$subcommand"} {
2800                         puts -nonewline stderr " $subcommand"
2801                 }
2802                 puts stderr {}
2803                 exit 1
2804         }
2805         # fall through to setup UI for commits
2806 }
2807 default {
2808         puts stderr "usage: $argv0 \[{blame|browser|citool}\]"
2809         exit 1
2810 }
2811 }
2812
2813 # -- Branch Control
2814 #
2815 frame .branch \
2816         -borderwidth 1 \
2817         -relief sunken
2818 label .branch.l1 \
2819         -text [mc "Current Branch:"] \
2820         -anchor w \
2821         -justify left
2822 label .branch.cb \
2823         -textvariable current_branch \
2824         -anchor w \
2825         -justify left
2826 pack .branch.l1 -side left
2827 pack .branch.cb -side left -fill x
2828 pack .branch -side top -fill x
2829
2830 # -- Main Window Layout
2831 #
2832 panedwindow .vpane -orient horizontal
2833 panedwindow .vpane.files -orient vertical
2834 .vpane add .vpane.files -sticky nsew -height 100 -width 200
2835 pack .vpane -anchor n -side top -fill both -expand 1
2836
2837 # -- Index File List
2838 #
2839 frame .vpane.files.index -height 100 -width 200
2840 label .vpane.files.index.title -text [mc "Staged Changes (Will Commit)"] \
2841         -background lightgreen -foreground black
2842 text $ui_index -background white -foreground black \
2843         -borderwidth 0 \
2844         -width 20 -height 10 \
2845         -wrap none \
2846         -cursor $cursor_ptr \
2847         -xscrollcommand {.vpane.files.index.sx set} \
2848         -yscrollcommand {.vpane.files.index.sy set} \
2849         -state disabled
2850 scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
2851 scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
2852 pack .vpane.files.index.title -side top -fill x
2853 pack .vpane.files.index.sx -side bottom -fill x
2854 pack .vpane.files.index.sy -side right -fill y
2855 pack $ui_index -side left -fill both -expand 1
2856
2857 # -- Working Directory File List
2858 #
2859 frame .vpane.files.workdir -height 100 -width 200
2860 label .vpane.files.workdir.title -text [mc "Unstaged Changes"] \
2861         -background lightsalmon -foreground black
2862 text $ui_workdir -background white -foreground black \
2863         -borderwidth 0 \
2864         -width 20 -height 10 \
2865         -wrap none \
2866         -cursor $cursor_ptr \
2867         -xscrollcommand {.vpane.files.workdir.sx set} \
2868         -yscrollcommand {.vpane.files.workdir.sy set} \
2869         -state disabled
2870 scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
2871 scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
2872 pack .vpane.files.workdir.title -side top -fill x
2873 pack .vpane.files.workdir.sx -side bottom -fill x
2874 pack .vpane.files.workdir.sy -side right -fill y
2875 pack $ui_workdir -side left -fill both -expand 1
2876
2877 .vpane.files add .vpane.files.workdir -sticky nsew
2878 .vpane.files add .vpane.files.index -sticky nsew
2879
2880 foreach i [list $ui_index $ui_workdir] {
2881         rmsel_tag $i
2882         $i tag conf in_diff -background [$i tag cget in_sel -background]
2883 }
2884 unset i
2885
2886 # -- Diff and Commit Area
2887 #
2888 frame .vpane.lower -height 300 -width 400
2889 frame .vpane.lower.commarea
2890 frame .vpane.lower.diff -relief sunken -borderwidth 1
2891 pack .vpane.lower.diff -fill both -expand 1
2892 pack .vpane.lower.commarea -side bottom -fill x
2893 .vpane add .vpane.lower -sticky nsew
2894
2895 # -- Commit Area Buttons
2896 #
2897 frame .vpane.lower.commarea.buttons
2898 label .vpane.lower.commarea.buttons.l -text {} \
2899         -anchor w \
2900         -justify left
2901 pack .vpane.lower.commarea.buttons.l -side top -fill x
2902 pack .vpane.lower.commarea.buttons -side left -fill y
2903
2904 button .vpane.lower.commarea.buttons.rescan -text [mc Rescan] \
2905         -command ui_do_rescan
2906 pack .vpane.lower.commarea.buttons.rescan -side top -fill x
2907 lappend disable_on_lock \
2908         {.vpane.lower.commarea.buttons.rescan conf -state}
2909
2910 button .vpane.lower.commarea.buttons.incall -text [mc "Stage Changed"] \
2911         -command do_add_all
2912 pack .vpane.lower.commarea.buttons.incall -side top -fill x
2913 lappend disable_on_lock \
2914         {.vpane.lower.commarea.buttons.incall conf -state}
2915
2916 if {![is_enabled nocommitmsg]} {
2917         button .vpane.lower.commarea.buttons.signoff -text [mc "Sign Off"] \
2918                 -command do_signoff
2919         pack .vpane.lower.commarea.buttons.signoff -side top -fill x
2920 }
2921
2922 button .vpane.lower.commarea.buttons.commit -text [commit_btn_caption] \
2923         -command do_commit
2924 pack .vpane.lower.commarea.buttons.commit -side top -fill x
2925 lappend disable_on_lock \
2926         {.vpane.lower.commarea.buttons.commit conf -state}
2927
2928 if {![is_enabled nocommit]} {
2929         button .vpane.lower.commarea.buttons.push -text [mc Push] \
2930                 -command do_push_anywhere
2931         pack .vpane.lower.commarea.buttons.push -side top -fill x
2932 }
2933
2934 # -- Commit Message Buffer
2935 #
2936 frame .vpane.lower.commarea.buffer
2937 frame .vpane.lower.commarea.buffer.header
2938 set ui_comm .vpane.lower.commarea.buffer.t
2939 set ui_coml .vpane.lower.commarea.buffer.header.l
2940
2941 if {![is_enabled nocommit]} {
2942         radiobutton .vpane.lower.commarea.buffer.header.new \
2943                 -text [mc "New Commit"] \
2944                 -command do_select_commit_type \
2945                 -variable selected_commit_type \
2946                 -value new
2947         lappend disable_on_lock \
2948                 [list .vpane.lower.commarea.buffer.header.new conf -state]
2949         radiobutton .vpane.lower.commarea.buffer.header.amend \
2950                 -text [mc "Amend Last Commit"] \
2951                 -command do_select_commit_type \
2952                 -variable selected_commit_type \
2953                 -value amend
2954         lappend disable_on_lock \
2955                 [list .vpane.lower.commarea.buffer.header.amend conf -state]
2956 }
2957
2958 label $ui_coml \
2959         -anchor w \
2960         -justify left
2961 proc trace_commit_type {varname args} {
2962         global ui_coml commit_type
2963         switch -glob -- $commit_type {
2964         initial       {set txt [mc "Initial Commit Message:"]}
2965         amend         {set txt [mc "Amended Commit Message:"]}
2966         amend-initial {set txt [mc "Amended Initial Commit Message:"]}
2967         amend-merge   {set txt [mc "Amended Merge Commit Message:"]}
2968         merge         {set txt [mc "Merge Commit Message:"]}
2969         *             {set txt [mc "Commit Message:"]}
2970         }
2971         $ui_coml conf -text $txt
2972 }
2973 trace add variable commit_type write trace_commit_type
2974 pack $ui_coml -side left -fill x
2975
2976 if {![is_enabled nocommit]} {
2977         pack .vpane.lower.commarea.buffer.header.amend -side right
2978         pack .vpane.lower.commarea.buffer.header.new -side right
2979 }
2980
2981 text $ui_comm -background white -foreground black \
2982         -borderwidth 1 \
2983         -undo true \
2984         -maxundo 20 \
2985         -autoseparators true \
2986         -relief sunken \
2987         -width $repo_config(gui.commitmsgwidth) -height 9 -wrap none \
2988         -font font_diff \
2989         -yscrollcommand {.vpane.lower.commarea.buffer.sby set}
2990 scrollbar .vpane.lower.commarea.buffer.sby \
2991         -command [list $ui_comm yview]
2992 pack .vpane.lower.commarea.buffer.header -side top -fill x
2993 pack .vpane.lower.commarea.buffer.sby -side right -fill y
2994 pack $ui_comm -side left -fill y
2995 pack .vpane.lower.commarea.buffer -side left -fill y
2996
2997 # -- Commit Message Buffer Context Menu
2998 #
2999 set ctxm .vpane.lower.commarea.buffer.ctxm
3000 menu $ctxm -tearoff 0
3001 $ctxm add command \
3002         -label [mc Cut] \
3003         -command {tk_textCut $ui_comm}
3004 $ctxm add command \
3005         -label [mc Copy] \
3006         -command {tk_textCopy $ui_comm}
3007 $ctxm add command \
3008         -label [mc Paste] \
3009         -command {tk_textPaste $ui_comm}
3010 $ctxm add command \
3011         -label [mc Delete] \
3012         -command {catch {$ui_comm delete sel.first sel.last}}
3013 $ctxm add separator
3014 $ctxm add command \
3015         -label [mc "Select All"] \
3016         -command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
3017 $ctxm add command \
3018         -label [mc "Copy All"] \
3019         -command {
3020                 $ui_comm tag add sel 0.0 end
3021                 tk_textCopy $ui_comm
3022                 $ui_comm tag remove sel 0.0 end
3023         }
3024 $ctxm add separator
3025 $ctxm add command \
3026         -label [mc "Sign Off"] \
3027         -command do_signoff
3028 set ui_comm_ctxm $ctxm
3029
3030 # -- Diff Header
3031 #
3032 proc trace_current_diff_path {varname args} {
3033         global current_diff_path diff_actions file_states
3034         if {$current_diff_path eq {}} {
3035                 set s {}
3036                 set f {}
3037                 set p {}
3038                 set o disabled
3039         } else {
3040                 set p $current_diff_path
3041                 set s [mapdesc [lindex $file_states($p) 0] $p]
3042                 set f [mc "File:"]
3043                 set p [escape_path $p]
3044                 set o normal
3045         }
3046
3047         .vpane.lower.diff.header.status configure -text $s
3048         .vpane.lower.diff.header.file configure -text $f
3049         .vpane.lower.diff.header.path configure -text $p
3050         foreach w $diff_actions {
3051                 uplevel #0 $w $o
3052         }
3053 }
3054 trace add variable current_diff_path write trace_current_diff_path
3055
3056 frame .vpane.lower.diff.header -background gold
3057 label .vpane.lower.diff.header.status \
3058         -background gold \
3059         -foreground black \
3060         -width $max_status_desc \
3061         -anchor w \
3062         -justify left
3063 label .vpane.lower.diff.header.file \
3064         -background gold \
3065         -foreground black \
3066         -anchor w \
3067         -justify left
3068 label .vpane.lower.diff.header.path \
3069         -background gold \
3070         -foreground black \
3071         -anchor w \
3072         -justify left
3073 pack .vpane.lower.diff.header.status -side left
3074 pack .vpane.lower.diff.header.file -side left
3075 pack .vpane.lower.diff.header.path -fill x
3076 set ctxm .vpane.lower.diff.header.ctxm
3077 menu $ctxm -tearoff 0
3078 $ctxm add command \
3079         -label [mc Copy] \
3080         -command {
3081                 clipboard clear
3082                 clipboard append \
3083                         -format STRING \
3084                         -type STRING \
3085                         -- $current_diff_path
3086         }
3087 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3088 bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"
3089
3090 # -- Diff Body
3091 #
3092 frame .vpane.lower.diff.body
3093 set ui_diff .vpane.lower.diff.body.t
3094 text $ui_diff -background white -foreground black \
3095         -borderwidth 0 \
3096         -width 80 -height 5 -wrap none \
3097         -font font_diff \
3098         -xscrollcommand {.vpane.lower.diff.body.sbx set} \
3099         -yscrollcommand {.vpane.lower.diff.body.sby set} \
3100         -state disabled
3101 scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
3102         -command [list $ui_diff xview]
3103 scrollbar .vpane.lower.diff.body.sby -orient vertical \
3104         -command [list $ui_diff yview]
3105 pack .vpane.lower.diff.body.sbx -side bottom -fill x
3106 pack .vpane.lower.diff.body.sby -side right -fill y
3107 pack $ui_diff -side left -fill both -expand 1
3108 pack .vpane.lower.diff.header -side top -fill x
3109 pack .vpane.lower.diff.body -side bottom -fill both -expand 1
3110
3111 $ui_diff tag conf d_cr -elide true
3112 $ui_diff tag conf d_@ -foreground blue -font font_diffbold
3113 $ui_diff tag conf d_+ -foreground {#00a000}
3114 $ui_diff tag conf d_- -foreground red
3115
3116 $ui_diff tag conf d_++ -foreground {#00a000}
3117 $ui_diff tag conf d_-- -foreground red
3118 $ui_diff tag conf d_+s \
3119         -foreground {#00a000} \
3120         -background {#e2effa}
3121 $ui_diff tag conf d_-s \
3122         -foreground red \
3123         -background {#e2effa}
3124 $ui_diff tag conf d_s+ \
3125         -foreground {#00a000} \
3126         -background ivory1
3127 $ui_diff tag conf d_s- \
3128         -foreground red \
3129         -background ivory1
3130
3131 $ui_diff tag conf d<<<<<<< \
3132         -foreground orange \
3133         -font font_diffbold
3134 $ui_diff tag conf d======= \
3135         -foreground orange \
3136         -font font_diffbold
3137 $ui_diff tag conf d>>>>>>> \
3138         -foreground orange \
3139         -font font_diffbold
3140
3141 $ui_diff tag raise sel
3142
3143 # -- Diff Body Context Menu
3144 #
3145
3146 proc create_common_diff_popup {ctxm} {
3147         $ctxm add command \
3148                 -label [mc "Show Less Context"] \
3149                 -command show_less_context
3150         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3151         $ctxm add command \
3152                 -label [mc "Show More Context"] \
3153                 -command show_more_context
3154         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3155         $ctxm add separator
3156         $ctxm add command \
3157                 -label [mc Refresh] \
3158                 -command reshow_diff
3159         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3160         $ctxm add command \
3161                 -label [mc Copy] \
3162                 -command {tk_textCopy $ui_diff}
3163         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3164         $ctxm add command \
3165                 -label [mc "Select All"] \
3166                 -command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
3167         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3168         $ctxm add command \
3169                 -label [mc "Copy All"] \
3170                 -command {
3171                         $ui_diff tag add sel 0.0 end
3172                         tk_textCopy $ui_diff
3173                         $ui_diff tag remove sel 0.0 end
3174                 }
3175         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3176         $ctxm add separator
3177         $ctxm add command \
3178                 -label [mc "Decrease Font Size"] \
3179                 -command {incr_font_size font_diff -1}
3180         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3181         $ctxm add command \
3182                 -label [mc "Increase Font Size"] \
3183                 -command {incr_font_size font_diff 1}
3184         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3185         $ctxm add separator
3186         set emenu $ctxm.enc
3187         menu $emenu
3188         build_encoding_menu $emenu [list force_diff_encoding]
3189         $ctxm add cascade \
3190                 -label [mc "Encoding"] \
3191                 -menu $emenu
3192         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3193         $ctxm add separator
3194         $ctxm add command -label [mc "Options..."] \
3195                 -command do_options
3196 }
3197
3198 set ctxm .vpane.lower.diff.body.ctxm
3199 menu $ctxm -tearoff 0
3200 $ctxm add command \
3201         -label [mc "Apply/Reverse Hunk"] \
3202         -command {apply_hunk $cursorX $cursorY}
3203 set ui_diff_applyhunk [$ctxm index last]
3204 lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
3205 $ctxm add command \
3206         -label [mc "Apply/Reverse Line"] \
3207         -command {apply_line $cursorX $cursorY; do_rescan}
3208 set ui_diff_applyline [$ctxm index last]
3209 lappend diff_actions [list $ctxm entryconf $ui_diff_applyline -state]
3210 $ctxm add separator
3211 create_common_diff_popup $ctxm
3212
3213 set ctxmmg .vpane.lower.diff.body.ctxmmg
3214 menu $ctxmmg -tearoff 0
3215 $ctxmmg add command \
3216         -label [mc "Run Merge Tool"] \
3217         -command {merge_resolve_tool}
3218 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3219 $ctxmmg add separator
3220 $ctxmmg add command \
3221         -label [mc "Use Remote Version"] \
3222         -command {merge_resolve_one 3}
3223 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3224 $ctxmmg add command \
3225         -label [mc "Use Local Version"] \
3226         -command {merge_resolve_one 2}
3227 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3228 $ctxmmg add command \
3229         -label [mc "Revert To Base"] \
3230         -command {merge_resolve_one 1}
3231 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3232 $ctxmmg add separator
3233 create_common_diff_popup $ctxmmg
3234
3235 proc popup_diff_menu {ctxm ctxmmg x y X Y} {
3236         global current_diff_path file_states
3237         set ::cursorX $x
3238         set ::cursorY $y
3239         if {[info exists file_states($current_diff_path)]} {
3240                 set state [lindex $file_states($current_diff_path) 0]
3241         } else {
3242                 set state {__}
3243         }
3244         if {[string first {U} $state] >= 0} {
3245                 tk_popup $ctxmmg $X $Y
3246         } else {
3247                 if {$::ui_index eq $::current_diff_side} {
3248                         set l [mc "Unstage Hunk From Commit"]
3249                         set t [mc "Unstage Line From Commit"]
3250                 } else {
3251                         set l [mc "Stage Hunk For Commit"]
3252                         set t [mc "Stage Line For Commit"]
3253                 }
3254                 if {$::is_3way_diff || $::is_submodule_diff
3255                         || $current_diff_path eq {}
3256                         || {__} eq $state
3257                         || {_O} eq $state
3258                         || {_T} eq $state
3259                         || {T_} eq $state} {
3260                         set s disabled
3261                 } else {
3262                         set s normal
3263                 }
3264                 $ctxm entryconf $::ui_diff_applyhunk -state $s -label $l
3265                 $ctxm entryconf $::ui_diff_applyline -state $s -label $t
3266                 tk_popup $ctxm $X $Y
3267         }
3268 }
3269 bind_button3 $ui_diff [list popup_diff_menu $ctxm $ctxmmg %x %y %X %Y]
3270
3271 # -- Status Bar
3272 #
3273 set main_status [::status_bar::new .status]
3274 pack .status -anchor w -side bottom -fill x
3275 $main_status show [mc "Initializing..."]
3276
3277 # -- Load geometry
3278 #
3279 catch {
3280 set gm $repo_config(gui.geometry)
3281 wm geometry . [lindex $gm 0]
3282 .vpane sash place 0 \
3283         [lindex $gm 1] \
3284         [lindex [.vpane sash coord 0] 1]
3285 .vpane.files sash place 0 \
3286         [lindex [.vpane.files sash coord 0] 0] \
3287         [lindex $gm 2]
3288 unset gm
3289 }
3290
3291 # -- Load window state
3292 #
3293 catch {
3294 set gws $repo_config(gui.wmstate)
3295 wm state . $gws
3296 unset gws
3297 }
3298
3299 # -- Key Bindings
3300 #
3301 bind $ui_comm <$M1B-Key-Return> {do_commit;break}
3302 bind $ui_comm <$M1B-Key-t> {do_add_selection;break}
3303 bind $ui_comm <$M1B-Key-T> {do_add_selection;break}
3304 bind $ui_comm <$M1B-Key-u> {do_unstage_selection;break}
3305 bind $ui_comm <$M1B-Key-U> {do_unstage_selection;break}
3306 bind $ui_comm <$M1B-Key-j> {do_revert_selection;break}
3307 bind $ui_comm <$M1B-Key-J> {do_revert_selection;break}
3308 bind $ui_comm <$M1B-Key-i> {do_add_all;break}
3309 bind $ui_comm <$M1B-Key-I> {do_add_all;break}
3310 bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
3311 bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
3312 bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
3313 bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
3314 bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
3315 bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
3316 bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3317 bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3318 bind $ui_comm <$M1B-Key-minus> {show_less_context;break}
3319 bind $ui_comm <$M1B-Key-KP_Subtract> {show_less_context;break}
3320 bind $ui_comm <$M1B-Key-equal> {show_more_context;break}
3321 bind $ui_comm <$M1B-Key-plus> {show_more_context;break}
3322 bind $ui_comm <$M1B-Key-KP_Add> {show_more_context;break}
3323
3324 bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
3325 bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
3326 bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
3327 bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
3328 bind $ui_diff <$M1B-Key-v> {break}
3329 bind $ui_diff <$M1B-Key-V> {break}
3330 bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3331 bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3332 bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
3333 bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
3334 bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
3335 bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
3336 bind $ui_diff <Key-k>         {catch {%W yview scroll -1 units};break}
3337 bind $ui_diff <Key-j>         {catch {%W yview scroll  1 units};break}
3338 bind $ui_diff <Key-h>         {catch {%W xview scroll -1 units};break}
3339 bind $ui_diff <Key-l>         {catch {%W xview scroll  1 units};break}
3340 bind $ui_diff <Control-Key-b> {catch {%W yview scroll -1 pages};break}
3341 bind $ui_diff <Control-Key-f> {catch {%W yview scroll  1 pages};break}
3342 bind $ui_diff <Button-1>   {focus %W}
3343
3344 if {[is_enabled branch]} {
3345         bind . <$M1B-Key-n> branch_create::dialog
3346         bind . <$M1B-Key-N> branch_create::dialog
3347         bind . <$M1B-Key-o> branch_checkout::dialog
3348         bind . <$M1B-Key-O> branch_checkout::dialog
3349         bind . <$M1B-Key-m> merge::dialog
3350         bind . <$M1B-Key-M> merge::dialog
3351 }
3352 if {[is_enabled transport]} {
3353         bind . <$M1B-Key-p> do_push_anywhere
3354         bind . <$M1B-Key-P> do_push_anywhere
3355 }
3356
3357 bind .   <Key-F5>     ui_do_rescan
3358 bind .   <$M1B-Key-r> ui_do_rescan
3359 bind .   <$M1B-Key-R> ui_do_rescan
3360 bind .   <$M1B-Key-s> do_signoff
3361 bind .   <$M1B-Key-S> do_signoff
3362 bind .   <$M1B-Key-t> do_add_selection
3363 bind .   <$M1B-Key-T> do_add_selection
3364 bind .   <$M1B-Key-i> do_add_all
3365 bind .   <$M1B-Key-I> do_add_all
3366 bind .   <$M1B-Key-minus> {show_less_context;break}
3367 bind .   <$M1B-Key-KP_Subtract> {show_less_context;break}
3368 bind .   <$M1B-Key-equal> {show_more_context;break}
3369 bind .   <$M1B-Key-plus> {show_more_context;break}
3370 bind .   <$M1B-Key-KP_Add> {show_more_context;break}
3371 bind .   <$M1B-Key-Return> do_commit
3372 foreach i [list $ui_index $ui_workdir] {
3373         bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
3374         bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
3375         bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
3376 }
3377 unset i
3378
3379 set file_lists($ui_index) [list]
3380 set file_lists($ui_workdir) [list]
3381
3382 wm title . "[appname] ([reponame]) [file normalize [file dirname [gitdir]]]"
3383 focus -force $ui_comm
3384
3385 # -- Warn the user about environmental problems.  Cygwin's Tcl
3386 #    does *not* pass its env array onto any processes it spawns.
3387 #    This means that git processes get none of our environment.
3388 #
3389 if {[is_Cygwin]} {
3390         set ignored_env 0
3391         set suggest_user {}
3392         set msg [mc "Possible environment issues exist.
3393
3394 The following environment variables are probably
3395 going to be ignored by any Git subprocess run
3396 by %s:
3397
3398 " [appname]]
3399         foreach name [array names env] {
3400                 switch -regexp -- $name {
3401                 {^GIT_INDEX_FILE$} -
3402                 {^GIT_OBJECT_DIRECTORY$} -
3403                 {^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
3404                 {^GIT_DIFF_OPTS$} -
3405                 {^GIT_EXTERNAL_DIFF$} -
3406                 {^GIT_PAGER$} -
3407                 {^GIT_TRACE$} -
3408                 {^GIT_CONFIG$} -
3409                 {^GIT_(AUTHOR|COMMITTER)_DATE$} {
3410                         append msg " - $name\n"
3411                         incr ignored_env
3412                 }
3413                 {^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
3414                         append msg " - $name\n"
3415                         incr ignored_env
3416                         set suggest_user $name
3417                 }
3418                 }
3419         }
3420         if {$ignored_env > 0} {
3421                 append msg [mc "
3422 This is due to a known issue with the
3423 Tcl binary distributed by Cygwin."]
3424
3425                 if {$suggest_user ne {}} {
3426                         append msg [mc "
3427
3428 A good replacement for %s
3429 is placing values for the user.name and
3430 user.email settings into your personal
3431 ~/.gitconfig file.
3432 " $suggest_user]
3433                 }
3434                 warn_popup $msg
3435         }
3436         unset ignored_env msg suggest_user name
3437 }
3438
3439 # -- Only initialize complex UI if we are going to stay running.
3440 #
3441 if {[is_enabled transport]} {
3442         load_all_remotes
3443
3444         set n [.mbar.remote index end]
3445         populate_remotes_menu
3446         set n [expr {[.mbar.remote index end] - $n}]
3447         if {$n > 0} {
3448                 if {[.mbar.remote type 0] eq "tearoff"} { incr n }
3449                 .mbar.remote insert $n separator
3450         }
3451         unset n
3452 }
3453
3454 if {[winfo exists $ui_comm]} {
3455         set GITGUI_BCK_exists [load_message GITGUI_BCK]
3456
3457         # -- If both our backup and message files exist use the
3458         #    newer of the two files to initialize the buffer.
3459         #
3460         if {$GITGUI_BCK_exists} {
3461                 set m [gitdir GITGUI_MSG]
3462                 if {[file isfile $m]} {
3463                         if {[file mtime [gitdir GITGUI_BCK]] > [file mtime $m]} {
3464                                 catch {file delete [gitdir GITGUI_MSG]}
3465                         } else {
3466                                 $ui_comm delete 0.0 end
3467                                 $ui_comm edit reset
3468                                 $ui_comm edit modified false
3469                                 catch {file delete [gitdir GITGUI_BCK]}
3470                                 set GITGUI_BCK_exists 0
3471                         }
3472                 }
3473                 unset m
3474         }
3475
3476         proc backup_commit_buffer {} {
3477                 global ui_comm GITGUI_BCK_exists
3478
3479                 set m [$ui_comm edit modified]
3480                 if {$m || $GITGUI_BCK_exists} {
3481                         set msg [string trim [$ui_comm get 0.0 end]]
3482                         regsub -all -line {[ \r\t]+$} $msg {} msg
3483
3484                         if {$msg eq {}} {
3485                                 if {$GITGUI_BCK_exists} {
3486                                         catch {file delete [gitdir GITGUI_BCK]}
3487                                         set GITGUI_BCK_exists 0
3488                                 }
3489                         } elseif {$m} {
3490                                 catch {
3491                                         set fd [open [gitdir GITGUI_BCK] w]
3492                                         puts -nonewline $fd $msg
3493                                         close $fd
3494                                         set GITGUI_BCK_exists 1
3495                                 }
3496                         }
3497
3498                         $ui_comm edit modified false
3499                 }
3500
3501                 set ::GITGUI_BCK_i [after 2000 backup_commit_buffer]
3502         }
3503
3504         backup_commit_buffer
3505
3506         # -- If the user has aspell available we can drive it
3507         #    in pipe mode to spellcheck the commit message.
3508         #
3509         set spell_cmd [list |]
3510         set spell_dict [get_config gui.spellingdictionary]
3511         lappend spell_cmd aspell
3512         if {$spell_dict ne {}} {
3513                 lappend spell_cmd --master=$spell_dict
3514         }
3515         lappend spell_cmd --mode=none
3516         lappend spell_cmd --encoding=utf-8
3517         lappend spell_cmd pipe
3518         if {$spell_dict eq {none}
3519          || [catch {set spell_fd [open $spell_cmd r+]} spell_err]} {
3520                 bind_button3 $ui_comm [list tk_popup $ui_comm_ctxm %X %Y]
3521         } else {
3522                 set ui_comm_spell [spellcheck::init \
3523                         $spell_fd \
3524                         $ui_comm \
3525                         $ui_comm_ctxm \
3526                 ]
3527         }
3528         unset -nocomplain spell_cmd spell_fd spell_err spell_dict
3529 }
3530
3531 lock_index begin-read
3532 if {![winfo ismapped .]} {
3533         wm deiconify .
3534 }
3535 after 1 {
3536         if {[is_enabled initialamend]} {
3537                 force_amend
3538         } else {
3539                 do_rescan
3540         }
3541
3542         if {[is_enabled nocommitmsg]} {
3543                 $ui_comm configure -state disabled -background gray
3544         }
3545 }
3546 if {[is_enabled multicommit]} {
3547         after 1000 hint_gc
3548 }
3549 if {[is_enabled retcode]} {
3550         bind . <Destroy> {+terminate_me %W}
3551 }
3552 if {$picked && [is_config_true gui.autoexplore]} {
3553         do_explore
3554 }