git-gui/git-gui.sh

   1 #!/bin/sh
   2 # Tcl ignores the next line -*- tcl -*- \
   3  if test "z$*" = zversion \
   4  || test "z$*" = z--version; \
   5  then \
   6         echo 'git-gui version @@GITGUI_VERSION@@'; \
   7         exit; \
   8  fi; \
   9  argv0=$0; \
  10  exec wish "$argv0" -- "$@"
  11
  12 set appvers {@@GITGUI_VERSION@@}
  13 set copyright [encoding convertfrom utf-8 {
  14 Copyright © 2006, 2007 Shawn Pearce, et. al.
  15
  16 This program is free software; you can redistribute it and/or modify
  17 it under the terms of the GNU General Public License as published by
  18 the Free Software Foundation; either version 2 of the License, or
  19 (at your option) any later version.
  20
  21 This program is distributed in the hope that it will be useful,
  22 but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 GNU General Public License for more details.
  25
  26 You should have received a copy of the GNU General Public License
  27 along with this program; if not, write to the Free Software
  28 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA}]
  29
  30 ######################################################################
  31 ##
  32 ## Tcl/Tk sanity check
  33
  34 if {[catch {package require Tcl 8.4} err]
  35  || [catch {package require Tk  8.4} err]
  36 } {
  37         catch {wm withdraw .}
  38         tk_messageBox \
  39                 -icon error \
  40                 -type ok \
  41                 -title [mc "git-gui: fatal error"] \
  42                 -message $err
  43         exit 1
  44 }
  45
  46 catch {rename send {}} ; # What an evil concept...
  47
  48 ######################################################################
  49 ##
  50 ## locate our library
  51
  52 set oguilib {@@GITGUI_LIBDIR@@}
  53 set oguirel {@@GITGUI_RELATIVE@@}
  54 if {$oguirel eq {1}} {
  55         set oguilib [file dirname [file normalize $argv0]]
  56         if {[file tail $oguilib] eq {git-core}} {
  57                 set oguilib [file dirname $oguilib]
  58         }
  59         set oguilib [file dirname $oguilib]
  60         set oguilib [file join $oguilib share git-gui lib]
  61         set oguimsg [file join $oguilib msgs]
  62 } elseif {[string match @@* $oguirel]} {
  63         set oguilib [file join [file dirname [file normalize $argv0]] lib]
  64         set oguimsg [file join [file dirname [file normalize $argv0]] po]
  65 } else {
  66         set oguimsg [file join $oguilib msgs]
  67 }
  68 unset oguirel
  69
  70 ######################################################################
  71 ##
  72 ## enable verbose loading?
  73
  74 if {![catch {set _verbose $env(GITGUI_VERBOSE)}]} {
  75         unset _verbose
  76         rename auto_load real__auto_load
  77         proc auto_load {name args} {
  78                 puts stderr "auto_load $name"
  79                 return [uplevel 1 real__auto_load $name $args]
  80         }
  81         rename source real__source
  82         proc source {name} {
  83                 puts stderr "source    $name"
  84                 uplevel 1 real__source $name
  85         }
  86 }
  87
  88 ######################################################################
  89 ##
  90 ## Internationalization (i18n) through msgcat and gettext. See
  91 ## http://www.gnu.org/software/gettext/manual/html_node/Tcl.html
  92
  93 package require msgcat
  94
  95 proc _mc_trim {fmt} {
  96         set cmk [string first @@ $fmt]
  97         if {$cmk > 0} {
  98                 return [string range $fmt 0 [expr {$cmk - 1}]]
  99         }
 100         return $fmt
 101 }
 102
 103 proc mc {en_fmt args} {
 104         set fmt [_mc_trim [::msgcat::mc $en_fmt]]
 105         if {[catch {set msg [eval [list format $fmt] $args]} err]} {
 106                 set msg [eval [list format [_mc_trim $en_fmt]] $args]
 107         }
 108         return $msg
 109 }
 110
 111 proc strcat {args} {
 112         return [join $args {}]
 113 }
 114
 115 ::msgcat::mcload $oguimsg
 116 unset oguimsg
 117
 118 ######################################################################
 119 ##
 120 ## read only globals
 121
 122 set _appname {Git Gui}
 123 set _gitdir {}
 124 set _gitexec {}
 125 set _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 $env(GIT_DIR)
1074                 set _prefix {}
1075                 }]
1076         && [catch {
1077                 # beware that from the .git dir this sets _gitdir to .
1078                 # and _prefix to the empty string
1079                 set _gitdir [git rev-parse --git-dir]
1080                 set _prefix [git rev-parse --show-prefix]
1081         } err]} {
1082         load_config 1
1083         apply_config
1084         choose_repository::pick
1085         set picked 1
1086 }
1087
1088 # we expand the _gitdir when it's just a single dot (i.e. when we're being
1089 # run from the .git dir itself) lest the routines to find the worktree
1090 # get confused
1091 if {$_gitdir eq "."} {
1092         set _gitdir [pwd]
1093 }
1094
1095 if {![file isdirectory $_gitdir] && [is_Cygwin]} {
1096         catch {set _gitdir [exec cygpath --windows $_gitdir]}
1097 }
1098 if {![file isdirectory $_gitdir]} {
1099         catch {wm withdraw .}
1100         error_popup [strcat [mc "Git directory not found:"] "\n\n$_gitdir"]
1101         exit 1
1102 }
1103 if {$_prefix ne {}} {
1104         regsub -all {[^/]+/} $_prefix ../ cdup
1105         if {[catch {cd $cdup} err]} {
1106                 catch {wm withdraw .}
1107                 error_popup [strcat [mc "Cannot move to top of working directory:"] "\n\n$err"]
1108                 exit 1
1109         }
1110         unset cdup
1111 } elseif {![is_enabled bare]} {
1112         if {[lindex [file split $_gitdir] end] ne {.git}} {
1113                 catch {wm withdraw .}
1114                 error_popup [strcat [mc "Cannot use funny .git directory:"] "\n\n$_gitdir"]
1115                 exit 1
1116         }
1117         if {[catch {cd [file dirname $_gitdir]} err]} {
1118                 catch {wm withdraw .}
1119                 error_popup [strcat [mc "No working directory"] " [file dirname $_gitdir]:\n\n$err"]
1120                 exit 1
1121         }
1122 }
1123 set _reponame [file split [file normalize $_gitdir]]
1124 if {[lindex $_reponame end] eq {.git}} {
1125         set _reponame [lindex $_reponame end-1]
1126 } else {
1127         set _reponame [lindex $_reponame end]
1128 }
1129
1130 ######################################################################
1131 ##
1132 ## global init
1133
1134 set current_diff_path {}
1135 set current_diff_side {}
1136 set diff_actions [list]
1137
1138 set HEAD {}
1139 set PARENT {}
1140 set MERGE_HEAD [list]
1141 set commit_type {}
1142 set empty_tree {}
1143 set current_branch {}
1144 set is_detached 0
1145 set current_diff_path {}
1146 set is_3way_diff 0
1147 set is_submodule_diff 0
1148 set is_conflict_diff 0
1149 set selected_commit_type new
1150 set diff_empty_count 0
1151
1152 set nullid "0000000000000000000000000000000000000000"
1153 set nullid2 "0000000000000000000000000000000000000001"
1154
1155 ######################################################################
1156 ##
1157 ## task management
1158
1159 set rescan_active 0
1160 set diff_active 0
1161 set last_clicked {}
1162
1163 set disable_on_lock [list]
1164 set index_lock_type none
1165
1166 proc lock_index {type} {
1167         global index_lock_type disable_on_lock
1168
1169         if {$index_lock_type eq {none}} {
1170                 set index_lock_type $type
1171                 foreach w $disable_on_lock {
1172                         uplevel #0 $w disabled
1173                 }
1174                 return 1
1175         } elseif {$index_lock_type eq "begin-$type"} {
1176                 set index_lock_type $type
1177                 return 1
1178         }
1179         return 0
1180 }
1181
1182 proc unlock_index {} {
1183         global index_lock_type disable_on_lock
1184
1185         set index_lock_type none
1186         foreach w $disable_on_lock {
1187                 uplevel #0 $w normal
1188         }
1189 }
1190
1191 ######################################################################
1192 ##
1193 ## status
1194
1195 proc repository_state {ctvar hdvar mhvar} {
1196         global current_branch
1197         upvar $ctvar ct $hdvar hd $mhvar mh
1198
1199         set mh [list]
1200
1201         load_current_branch
1202         if {[catch {set hd [git rev-parse --verify HEAD]}]} {
1203                 set hd {}
1204                 set ct initial
1205                 return
1206         }
1207
1208         set merge_head [gitdir MERGE_HEAD]
1209         if {[file exists $merge_head]} {
1210                 set ct merge
1211                 set fd_mh [open $merge_head r]
1212                 while {[gets $fd_mh line] >= 0} {
1213                         lappend mh $line
1214                 }
1215                 close $fd_mh
1216                 return
1217         }
1218
1219         set ct normal
1220 }
1221
1222 proc PARENT {} {
1223         global PARENT empty_tree
1224
1225         set p [lindex $PARENT 0]
1226         if {$p ne {}} {
1227                 return $p
1228         }
1229         if {$empty_tree eq {}} {
1230                 set empty_tree [git mktree << {}]
1231         }
1232         return $empty_tree
1233 }
1234
1235 proc force_amend {} {
1236         global selected_commit_type
1237         global HEAD PARENT MERGE_HEAD commit_type
1238
1239         repository_state newType newHEAD newMERGE_HEAD
1240         set HEAD $newHEAD
1241         set PARENT $newHEAD
1242         set MERGE_HEAD $newMERGE_HEAD
1243         set commit_type $newType
1244
1245         set selected_commit_type amend
1246         do_select_commit_type
1247 }
1248
1249 proc rescan {after {honor_trustmtime 1}} {
1250         global HEAD PARENT MERGE_HEAD commit_type
1251         global ui_index ui_workdir ui_comm
1252         global rescan_active file_states
1253         global repo_config
1254
1255         if {$rescan_active > 0 || ![lock_index read]} return
1256
1257         repository_state newType newHEAD newMERGE_HEAD
1258         if {[string match amend* $commit_type]
1259                 && $newType eq {normal}
1260                 && $newHEAD eq $HEAD} {
1261         } else {
1262                 set HEAD $newHEAD
1263                 set PARENT $newHEAD
1264                 set MERGE_HEAD $newMERGE_HEAD
1265                 set commit_type $newType
1266         }
1267
1268         array unset file_states
1269
1270         if {!$::GITGUI_BCK_exists &&
1271                 (![$ui_comm edit modified]
1272                 || [string trim [$ui_comm get 0.0 end]] eq {})} {
1273                 if {[string match amend* $commit_type]} {
1274                 } elseif {[load_message GITGUI_MSG]} {
1275                 } elseif {[run_prepare_commit_msg_hook]} {
1276                 } elseif {[load_message MERGE_MSG]} {
1277                 } elseif {[load_message SQUASH_MSG]} {
1278                 }
1279                 $ui_comm edit reset
1280                 $ui_comm edit modified false
1281         }
1282
1283         if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
1284                 rescan_stage2 {} $after
1285         } else {
1286                 set rescan_active 1
1287                 ui_status [mc "Refreshing file status..."]
1288                 set fd_rf [git_read update-index \
1289                         -q \
1290                         --unmerged \
1291                         --ignore-missing \
1292                         --refresh \
1293                         ]
1294                 fconfigure $fd_rf -blocking 0 -translation binary
1295                 fileevent $fd_rf readable \
1296                         [list rescan_stage2 $fd_rf $after]
1297         }
1298 }
1299
1300 if {[is_Cygwin]} {
1301         set is_git_info_exclude {}
1302         proc have_info_exclude {} {
1303                 global is_git_info_exclude
1304
1305                 if {$is_git_info_exclude eq {}} {
1306                         if {[catch {exec test -f [gitdir info exclude]}]} {
1307                                 set is_git_info_exclude 0
1308                         } else {
1309                                 set is_git_info_exclude 1
1310                         }
1311                 }
1312                 return $is_git_info_exclude
1313         }
1314 } else {
1315         proc have_info_exclude {} {
1316                 return [file readable [gitdir info exclude]]
1317         }
1318 }
1319
1320 proc rescan_stage2 {fd after} {
1321         global rescan_active buf_rdi buf_rdf buf_rlo
1322
1323         if {$fd ne {}} {
1324                 read $fd
1325                 if {![eof $fd]} return
1326                 close $fd
1327         }
1328
1329         set ls_others [list --exclude-per-directory=.gitignore]
1330         if {[have_info_exclude]} {
1331                 lappend ls_others "--exclude-from=[gitdir info exclude]"
1332         }
1333         set user_exclude [get_config core.excludesfile]
1334         if {$user_exclude ne {} && [file readable $user_exclude]} {
1335                 lappend ls_others "--exclude-from=$user_exclude"
1336         }
1337
1338         set buf_rdi {}
1339         set buf_rdf {}
1340         set buf_rlo {}
1341
1342         set rescan_active 3
1343         ui_status [mc "Scanning for modified files ..."]
1344         set fd_di [git_read diff-index --cached -z [PARENT]]
1345         set fd_df [git_read diff-files -z]
1346         set fd_lo [eval git_read ls-files --others -z $ls_others]
1347
1348         fconfigure $fd_di -blocking 0 -translation binary -encoding binary
1349         fconfigure $fd_df -blocking 0 -translation binary -encoding binary
1350         fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
1351         fileevent $fd_di readable [list read_diff_index $fd_di $after]
1352         fileevent $fd_df readable [list read_diff_files $fd_df $after]
1353         fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
1354 }
1355
1356 proc load_message {file} {
1357         global ui_comm
1358
1359         set f [gitdir $file]
1360         if {[file isfile $f]} {
1361                 if {[catch {set fd [open $f r]}]} {
1362                         return 0
1363                 }
1364                 fconfigure $fd -eofchar {}
1365                 set content [string trim [read $fd]]
1366                 close $fd
1367                 regsub -all -line {[ \r\t]+$} $content {} content
1368                 $ui_comm delete 0.0 end
1369                 $ui_comm insert end $content
1370                 return 1
1371         }
1372         return 0
1373 }
1374
1375 proc run_prepare_commit_msg_hook {} {
1376         global pch_error
1377
1378         # prepare-commit-msg requires PREPARE_COMMIT_MSG exist.  From git-gui
1379         # it will be .git/MERGE_MSG (merge), .git/SQUASH_MSG (squash), or an
1380         # empty file but existant file.
1381
1382         set fd_pcm [open [gitdir PREPARE_COMMIT_MSG] a]
1383
1384         if {[file isfile [gitdir MERGE_MSG]]} {
1385                 set pcm_source "merge"
1386                 set fd_mm [open [gitdir MERGE_MSG] r]
1387                 puts -nonewline $fd_pcm [read $fd_mm]
1388                 close $fd_mm
1389         } elseif {[file isfile [gitdir SQUASH_MSG]]} {
1390                 set pcm_source "squash"
1391                 set fd_sm [open [gitdir SQUASH_MSG] r]
1392                 puts -nonewline $fd_pcm [read $fd_sm]
1393                 close $fd_sm
1394         } else {
1395                 set pcm_source ""
1396         }
1397
1398         close $fd_pcm
1399
1400         set fd_ph [githook_read prepare-commit-msg \
1401                         [gitdir PREPARE_COMMIT_MSG] $pcm_source]
1402         if {$fd_ph eq {}} {
1403                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1404                 return 0;
1405         }
1406
1407         ui_status [mc "Calling prepare-commit-msg hook..."]
1408         set pch_error {}
1409
1410         fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
1411         fileevent $fd_ph readable \
1412                 [list prepare_commit_msg_hook_wait $fd_ph]
1413
1414         return 1;
1415 }
1416
1417 proc prepare_commit_msg_hook_wait {fd_ph} {
1418         global pch_error
1419
1420         append pch_error [read $fd_ph]
1421         fconfigure $fd_ph -blocking 1
1422         if {[eof $fd_ph]} {
1423                 if {[catch {close $fd_ph}]} {
1424                         ui_status [mc "Commit declined by prepare-commit-msg hook."]
1425                         hook_failed_popup prepare-commit-msg $pch_error
1426                         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1427                         exit 1
1428                 } else {
1429                         load_message PREPARE_COMMIT_MSG
1430                 }
1431                 set pch_error {}
1432                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1433                 return
1434         }
1435         fconfigure $fd_ph -blocking 0
1436         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1437 }
1438
1439 proc read_diff_index {fd after} {
1440         global buf_rdi
1441
1442         append buf_rdi [read $fd]
1443         set c 0
1444         set n [string length $buf_rdi]
1445         while {$c < $n} {
1446                 set z1 [string first "\0" $buf_rdi $c]
1447                 if {$z1 == -1} break
1448                 incr z1
1449                 set z2 [string first "\0" $buf_rdi $z1]
1450                 if {$z2 == -1} break
1451
1452                 incr c
1453                 set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
1454                 set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
1455                 merge_state \
1456                         [encoding convertfrom $p] \
1457                         [lindex $i 4]? \
1458                         [list [lindex $i 0] [lindex $i 2]] \
1459                         [list]
1460                 set c $z2
1461                 incr c
1462         }
1463         if {$c < $n} {
1464                 set buf_rdi [string range $buf_rdi $c end]
1465         } else {
1466                 set buf_rdi {}
1467         }
1468
1469         rescan_done $fd buf_rdi $after
1470 }
1471
1472 proc read_diff_files {fd after} {
1473         global buf_rdf
1474
1475         append buf_rdf [read $fd]
1476         set c 0
1477         set n [string length $buf_rdf]
1478         while {$c < $n} {
1479                 set z1 [string first "\0" $buf_rdf $c]
1480                 if {$z1 == -1} break
1481                 incr z1
1482                 set z2 [string first "\0" $buf_rdf $z1]
1483                 if {$z2 == -1} break
1484
1485                 incr c
1486                 set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
1487                 set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
1488                 merge_state \
1489                         [encoding convertfrom $p] \
1490                         ?[lindex $i 4] \
1491                         [list] \
1492                         [list [lindex $i 0] [lindex $i 2]]
1493                 set c $z2
1494                 incr c
1495         }
1496         if {$c < $n} {
1497                 set buf_rdf [string range $buf_rdf $c end]
1498         } else {
1499                 set buf_rdf {}
1500         }
1501
1502         rescan_done $fd buf_rdf $after
1503 }
1504
1505 proc read_ls_others {fd after} {
1506         global buf_rlo
1507
1508         append buf_rlo [read $fd]
1509         set pck [split $buf_rlo "\0"]
1510         set buf_rlo [lindex $pck end]
1511         foreach p [lrange $pck 0 end-1] {
1512                 set p [encoding convertfrom $p]
1513                 if {[string index $p end] eq {/}} {
1514                         set p [string range $p 0 end-1]
1515                 }
1516                 merge_state $p ?O
1517         }
1518         rescan_done $fd buf_rlo $after
1519 }
1520
1521 proc rescan_done {fd buf after} {
1522         global rescan_active current_diff_path
1523         global file_states repo_config
1524         upvar $buf to_clear
1525
1526         if {![eof $fd]} return
1527         set to_clear {}
1528         close $fd
1529         if {[incr rescan_active -1] > 0} return
1530
1531         prune_selection
1532         unlock_index
1533         display_all_files
1534         if {$current_diff_path ne {}} { reshow_diff $after }
1535         if {$current_diff_path eq {}} { select_first_diff $after }
1536 }
1537
1538 proc prune_selection {} {
1539         global file_states selected_paths
1540
1541         foreach path [array names selected_paths] {
1542                 if {[catch {set still_here $file_states($path)}]} {
1543                         unset selected_paths($path)
1544                 }
1545         }
1546 }
1547
1548 ######################################################################
1549 ##
1550 ## ui helpers
1551
1552 proc mapicon {w state path} {
1553         global all_icons
1554
1555         if {[catch {set r $all_icons($state$w)}]} {
1556                 puts "error: no icon for $w state={$state} $path"
1557                 return file_plain
1558         }
1559         return $r
1560 }
1561
1562 proc mapdesc {state path} {
1563         global all_descs
1564
1565         if {[catch {set r $all_descs($state)}]} {
1566                 puts "error: no desc for state={$state} $path"
1567                 return $state
1568         }
1569         return $r
1570 }
1571
1572 proc ui_status {msg} {
1573         global main_status
1574         if {[info exists main_status]} {
1575                 $main_status show $msg
1576         }
1577 }
1578
1579 proc ui_ready {{test {}}} {
1580         global main_status
1581         if {[info exists main_status]} {
1582                 $main_status show [mc "Ready."] $test
1583         }
1584 }
1585
1586 proc escape_path {path} {
1587         regsub -all {\\} $path "\\\\" path
1588         regsub -all "\n" $path "\\n" path
1589         return $path
1590 }
1591
1592 proc short_path {path} {
1593         return [escape_path [lindex [file split $path] end]]
1594 }
1595
1596 set next_icon_id 0
1597 set null_sha1 [string repeat 0 40]
1598
1599 proc merge_state {path new_state {head_info {}} {index_info {}}} {
1600         global file_states next_icon_id null_sha1
1601
1602         set s0 [string index $new_state 0]
1603         set s1 [string index $new_state 1]
1604
1605         if {[catch {set info $file_states($path)}]} {
1606                 set state __
1607                 set icon n[incr next_icon_id]
1608         } else {
1609                 set state [lindex $info 0]
1610                 set icon [lindex $info 1]
1611                 if {$head_info eq {}}  {set head_info  [lindex $info 2]}
1612                 if {$index_info eq {}} {set index_info [lindex $info 3]}
1613         }
1614
1615         if     {$s0 eq {?}} {set s0 [string index $state 0]} \
1616         elseif {$s0 eq {_}} {set s0 _}
1617
1618         if     {$s1 eq {?}} {set s1 [string index $state 1]} \
1619         elseif {$s1 eq {_}} {set s1 _}
1620
1621         if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
1622                 set head_info [list 0 $null_sha1]
1623         } elseif {$s0 ne {_} && [string index $state 0] eq {_}
1624                 && $head_info eq {}} {
1625                 set head_info $index_info
1626         } elseif {$s0 eq {_} && [string index $state 0] ne {_}} {
1627                 set index_info $head_info
1628                 set head_info {}
1629         }
1630
1631         set file_states($path) [list $s0$s1 $icon \
1632                 $head_info $index_info \
1633                 ]
1634         return $state
1635 }
1636
1637 proc display_file_helper {w path icon_name old_m new_m} {
1638         global file_lists
1639
1640         if {$new_m eq {_}} {
1641                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1642                 if {$lno >= 0} {
1643                         set file_lists($w) [lreplace $file_lists($w) $lno $lno]
1644                         incr lno
1645                         $w conf -state normal
1646                         $w delete $lno.0 [expr {$lno + 1}].0
1647                         $w conf -state disabled
1648                 }
1649         } elseif {$old_m eq {_} && $new_m ne {_}} {
1650                 lappend file_lists($w) $path
1651                 set file_lists($w) [lsort -unique $file_lists($w)]
1652                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1653                 incr lno
1654                 $w conf -state normal
1655                 $w image create $lno.0 \
1656                         -align center -padx 5 -pady 1 \
1657                         -name $icon_name \
1658                         -image [mapicon $w $new_m $path]
1659                 $w insert $lno.1 "[escape_path $path]\n"
1660                 $w conf -state disabled
1661         } elseif {$old_m ne $new_m} {
1662                 $w conf -state normal
1663                 $w image conf $icon_name -image [mapicon $w $new_m $path]
1664                 $w conf -state disabled
1665         }
1666 }
1667
1668 proc display_file {path state} {
1669         global file_states selected_paths
1670         global ui_index ui_workdir
1671
1672         set old_m [merge_state $path $state]
1673         set s $file_states($path)
1674         set new_m [lindex $s 0]
1675         set icon_name [lindex $s 1]
1676
1677         set o [string index $old_m 0]
1678         set n [string index $new_m 0]
1679         if {$o eq {U}} {
1680                 set o _
1681         }
1682         if {$n eq {U}} {
1683                 set n _
1684         }
1685         display_file_helper     $ui_index $path $icon_name $o $n
1686
1687         if {[string index $old_m 0] eq {U}} {
1688                 set o U
1689         } else {
1690                 set o [string index $old_m 1]
1691         }
1692         if {[string index $new_m 0] eq {U}} {
1693                 set n U
1694         } else {
1695                 set n [string index $new_m 1]
1696         }
1697         display_file_helper     $ui_workdir $path $icon_name $o $n
1698
1699         if {$new_m eq {__}} {
1700                 unset file_states($path)
1701                 catch {unset selected_paths($path)}
1702         }
1703 }
1704
1705 proc display_all_files_helper {w path icon_name m} {
1706         global file_lists
1707
1708         lappend file_lists($w) $path
1709         set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
1710         $w image create end \
1711                 -align center -padx 5 -pady 1 \
1712                 -name $icon_name \
1713                 -image [mapicon $w $m $path]
1714         $w insert end "[escape_path $path]\n"
1715 }
1716
1717 set files_warning 0
1718 proc display_all_files {} {
1719         global ui_index ui_workdir
1720         global file_states file_lists
1721         global last_clicked
1722         global files_warning
1723
1724         $ui_index conf -state normal
1725         $ui_workdir conf -state normal
1726
1727         $ui_index delete 0.0 end
1728         $ui_workdir delete 0.0 end
1729         set last_clicked {}
1730
1731         set file_lists($ui_index) [list]
1732         set file_lists($ui_workdir) [list]
1733
1734         set to_display [lsort [array names file_states]]
1735         set display_limit [get_config gui.maxfilesdisplayed]
1736         if {[llength $to_display] > $display_limit} {
1737                 if {!$files_warning} {
1738                         # do not repeatedly warn:
1739                         set files_warning 1
1740                         info_popup [mc "Displaying only %s of %s files." \
1741                                 $display_limit [llength $to_display]]
1742                 }
1743                 set to_display [lrange $to_display 0 [expr {$display_limit-1}]]
1744         }
1745         foreach path $to_display {
1746                 set s $file_states($path)
1747                 set m [lindex $s 0]
1748                 set icon_name [lindex $s 1]
1749
1750                 set s [string index $m 0]
1751                 if {$s ne {U} && $s ne {_}} {
1752                         display_all_files_helper $ui_index $path \
1753                                 $icon_name $s
1754                 }
1755
1756                 if {[string index $m 0] eq {U}} {
1757                         set s U
1758                 } else {
1759                         set s [string index $m 1]
1760                 }
1761                 if {$s ne {_}} {
1762                         display_all_files_helper $ui_workdir $path \
1763                                 $icon_name $s
1764                 }
1765         }
1766
1767         $ui_index conf -state disabled
1768         $ui_workdir conf -state disabled
1769 }
1770
1771 ######################################################################
1772 ##
1773 ## icons
1774
1775 set filemask {
1776 #define mask_width 14
1777 #define mask_height 15
1778 static unsigned char mask_bits[] = {
1779    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1780    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1781    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
1782 }
1783
1784 image create bitmap file_plain -background white -foreground black -data {
1785 #define plain_width 14
1786 #define plain_height 15
1787 static unsigned char plain_bits[] = {
1788    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1789    0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
1790    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1791 } -maskdata $filemask
1792
1793 image create bitmap file_mod -background white -foreground blue -data {
1794 #define mod_width 14
1795 #define mod_height 15
1796 static unsigned char mod_bits[] = {
1797    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
1798    0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1799    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
1800 } -maskdata $filemask
1801
1802 image create bitmap file_fulltick -background white -foreground "#007000" -data {
1803 #define file_fulltick_width 14
1804 #define file_fulltick_height 15
1805 static unsigned char file_fulltick_bits[] = {
1806    0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
1807    0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
1808    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1809 } -maskdata $filemask
1810
1811 image create bitmap file_parttick -background white -foreground "#005050" -data {
1812 #define parttick_width 14
1813 #define parttick_height 15
1814 static unsigned char parttick_bits[] = {
1815    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
1816    0x7a, 0x14, 0x02, 0x16, 0x02, 0x13, 0x8a, 0x11, 0xda, 0x10, 0x72, 0x10,
1817    0x22, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1818 } -maskdata $filemask
1819
1820 image create bitmap file_question -background white -foreground black -data {
1821 #define file_question_width 14
1822 #define file_question_height 15
1823 static unsigned char file_question_bits[] = {
1824    0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
1825    0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
1826    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1827 } -maskdata $filemask
1828
1829 image create bitmap file_removed -background white -foreground red -data {
1830 #define file_removed_width 14
1831 #define file_removed_height 15
1832 static unsigned char file_removed_bits[] = {
1833    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1834    0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
1835    0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
1836 } -maskdata $filemask
1837
1838 image create bitmap file_merge -background white -foreground blue -data {
1839 #define file_merge_width 14
1840 #define file_merge_height 15
1841 static unsigned char file_merge_bits[] = {
1842    0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
1843    0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1844    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
1845 } -maskdata $filemask
1846
1847 image create bitmap file_statechange -background white -foreground green -data {
1848 #define file_merge_width 14
1849 #define file_merge_height 15
1850 static unsigned char file_statechange_bits[] = {
1851    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x62, 0x10,
1852    0x62, 0x10, 0xba, 0x11, 0xba, 0x11, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10,
1853    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1854 } -maskdata $filemask
1855
1856 set ui_index .vpane.files.index.list
1857 set ui_workdir .vpane.files.workdir.list
1858
1859 set all_icons(_$ui_index)   file_plain
1860 set all_icons(A$ui_index)   file_fulltick
1861 set all_icons(M$ui_index)   file_fulltick
1862 set all_icons(D$ui_index)   file_removed
1863 set all_icons(U$ui_index)   file_merge
1864 set all_icons(T$ui_index)   file_statechange
1865
1866 set all_icons(_$ui_workdir) file_plain
1867 set all_icons(M$ui_workdir) file_mod
1868 set all_icons(D$ui_workdir) file_question
1869 set all_icons(U$ui_workdir) file_merge
1870 set all_icons(O$ui_workdir) file_plain
1871 set all_icons(T$ui_workdir) file_statechange
1872
1873 set max_status_desc 0
1874 foreach i {
1875                 {__ {mc "Unmodified"}}
1876
1877                 {_M {mc "Modified, not staged"}}
1878                 {M_ {mc "Staged for commit"}}
1879                 {MM {mc "Portions staged for commit"}}
1880                 {MD {mc "Staged for commit, missing"}}
1881
1882                 {_T {mc "File type changed, not staged"}}
1883                 {T_ {mc "File type changed, staged"}}
1884
1885                 {_O {mc "Untracked, not staged"}}
1886                 {A_ {mc "Staged for commit"}}
1887                 {AM {mc "Portions staged for commit"}}
1888                 {AD {mc "Staged for commit, missing"}}
1889
1890                 {_D {mc "Missing"}}
1891                 {D_ {mc "Staged for removal"}}
1892                 {DO {mc "Staged for removal, still present"}}
1893
1894                 {_U {mc "Requires merge resolution"}}
1895                 {U_ {mc "Requires merge resolution"}}
1896                 {UU {mc "Requires merge resolution"}}
1897                 {UM {mc "Requires merge resolution"}}
1898                 {UD {mc "Requires merge resolution"}}
1899                 {UT {mc "Requires merge resolution"}}
1900         } {
1901         set text [eval [lindex $i 1]]
1902         if {$max_status_desc < [string length $text]} {
1903                 set max_status_desc [string length $text]
1904         }
1905         set all_descs([lindex $i 0]) $text
1906 }
1907 unset i
1908
1909 ######################################################################
1910 ##
1911 ## util
1912
1913 proc scrollbar2many {list mode args} {
1914         foreach w $list {eval $w $mode $args}
1915 }
1916
1917 proc many2scrollbar {list mode sb top bottom} {
1918         $sb set $top $bottom
1919         foreach w $list {$w $mode moveto $top}
1920 }
1921
1922 proc incr_font_size {font {amt 1}} {
1923         set sz [font configure $font -size]
1924         incr sz $amt
1925         font configure $font -size $sz
1926         font configure ${font}bold -size $sz
1927         font configure ${font}italic -size $sz
1928 }
1929
1930 ######################################################################
1931 ##
1932 ## ui commands
1933
1934 set starting_gitk_msg [mc "Starting gitk... please wait..."]
1935
1936 proc do_gitk {revs} {
1937         # -- Always start gitk through whatever we were loaded with.  This
1938         #    lets us bypass using shell process on Windows systems.
1939         #
1940         set exe [_which gitk -script]
1941         set cmd [list [info nameofexecutable] $exe]
1942         if {$exe eq {}} {
1943                 error_popup [mc "Couldn't find gitk in PATH"]
1944         } else {
1945                 global env
1946
1947                 if {[info exists env(GIT_DIR)]} {
1948                         set old_GIT_DIR $env(GIT_DIR)
1949                 } else {
1950                         set old_GIT_DIR {}
1951                 }
1952
1953                 set pwd [pwd]
1954                 cd [file dirname [gitdir]]
1955                 set env(GIT_DIR) [file tail [gitdir]]
1956
1957                 eval exec $cmd $revs "--" "--" &
1958
1959                 if {$old_GIT_DIR eq {}} {
1960                         unset env(GIT_DIR)
1961                 } else {
1962                         set env(GIT_DIR) $old_GIT_DIR
1963                 }
1964                 cd $pwd
1965
1966                 ui_status $::starting_gitk_msg
1967                 after 10000 {
1968                         ui_ready $starting_gitk_msg
1969                 }
1970         }
1971 }
1972
1973 proc do_explore {} {
1974         set explorer {}
1975         if {[is_Cygwin] || [is_Windows]} {
1976                 set explorer "explorer.exe"
1977         } elseif {[is_MacOSX]} {
1978                 set explorer "open"
1979         } else {
1980                 # freedesktop.org-conforming system is our best shot
1981                 set explorer "xdg-open"
1982         }
1983         eval exec $explorer [list [file nativename [file dirname [gitdir]]]] &
1984 }
1985
1986 set is_quitting 0
1987 set ret_code    1
1988
1989 proc terminate_me {win} {
1990         global ret_code
1991         if {$win ne {.}} return
1992         exit $ret_code
1993 }
1994
1995 proc do_quit {{rc {1}}} {
1996         global ui_comm is_quitting repo_config commit_type
1997         global GITGUI_BCK_exists GITGUI_BCK_i
1998         global ui_comm_spell
1999         global ret_code
2000
2001         if {$is_quitting} return
2002         set is_quitting 1
2003
2004         if {[winfo exists $ui_comm]} {
2005                 # -- Stash our current commit buffer.
2006                 #
2007                 set save [gitdir GITGUI_MSG]
2008                 if {$GITGUI_BCK_exists && ![$ui_comm edit modified]} {
2009                         file rename -force [gitdir GITGUI_BCK] $save
2010                         set GITGUI_BCK_exists 0
2011                 } else {
2012                         set msg [string trim [$ui_comm get 0.0 end]]
2013                         regsub -all -line {[ \r\t]+$} $msg {} msg
2014                         if {(![string match amend* $commit_type]
2015                                 || [$ui_comm edit modified])
2016                                 && $msg ne {}} {
2017                                 catch {
2018                                         set fd [open $save w]
2019                                         puts -nonewline $fd $msg
2020                                         close $fd
2021                                 }
2022                         } else {
2023                                 catch {file delete $save}
2024                         }
2025                 }
2026
2027                 # -- Cancel our spellchecker if its running.
2028                 #
2029                 if {[info exists ui_comm_spell]} {
2030                         $ui_comm_spell stop
2031                 }
2032
2033                 # -- Remove our editor backup, its not needed.
2034                 #
2035                 after cancel $GITGUI_BCK_i
2036                 if {$GITGUI_BCK_exists} {
2037                         catch {file delete [gitdir GITGUI_BCK]}
2038                 }
2039
2040                 # -- Stash our current window geometry into this repository.
2041                 #
2042                 set cfg_wmstate [wm state .]
2043                 if {[catch {set rc_wmstate $repo_config(gui.wmstate)}]} {
2044                         set rc_wmstate {}
2045                 }
2046                 if {$cfg_wmstate ne $rc_wmstate} {
2047                         catch {git config gui.wmstate $cfg_wmstate}
2048                 }
2049                 if {$cfg_wmstate eq {zoomed}} {
2050                         # on Windows wm geometry will lie about window
2051                         # position (but not size) when window is zoomed
2052                         # restore the window before querying wm geometry
2053                         wm state . normal
2054                 }
2055                 set cfg_geometry [list]
2056                 lappend cfg_geometry [wm geometry .]
2057                 lappend cfg_geometry [lindex [.vpane sash coord 0] 0]
2058                 lappend cfg_geometry [lindex [.vpane.files sash coord 0] 1]
2059                 if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
2060                         set rc_geometry {}
2061                 }
2062                 if {$cfg_geometry ne $rc_geometry} {
2063                         catch {git config gui.geometry $cfg_geometry}
2064                 }
2065         }
2066
2067         set ret_code $rc
2068
2069         # Briefly enable send again, working around Tk bug
2070         # http://sourceforge.net/tracker/?func=detail&atid=112997&aid=1821174&group_id=12997
2071         tk appname [appname]
2072
2073         destroy .
2074 }
2075
2076 proc do_rescan {} {
2077         rescan ui_ready
2078 }
2079
2080 proc ui_do_rescan {} {
2081         rescan {force_first_diff ui_ready}
2082 }
2083
2084 proc do_commit {} {
2085         commit_tree
2086 }
2087
2088 proc next_diff {{after {}}} {
2089         global next_diff_p next_diff_w next_diff_i
2090         show_diff $next_diff_p $next_diff_w {} {} $after
2091 }
2092
2093 proc find_anchor_pos {lst name} {
2094         set lid [lsearch -sorted -exact $lst $name]
2095
2096         if {$lid == -1} {
2097                 set lid 0
2098                 foreach lname $lst {
2099                         if {$lname >= $name} break
2100                         incr lid
2101                 }
2102         }
2103
2104         return $lid
2105 }
2106
2107 proc find_file_from {flist idx delta path mmask} {
2108         global file_states
2109
2110         set len [llength $flist]
2111         while {$idx >= 0 && $idx < $len} {
2112                 set name [lindex $flist $idx]
2113
2114                 if {$name ne $path && [info exists file_states($name)]} {
2115                         set state [lindex $file_states($name) 0]
2116
2117                         if {$mmask eq {} || [regexp $mmask $state]} {
2118                                 return $idx
2119                         }
2120                 }
2121
2122                 incr idx $delta
2123         }
2124
2125         return {}
2126 }
2127
2128 proc find_next_diff {w path {lno {}} {mmask {}}} {
2129         global next_diff_p next_diff_w next_diff_i
2130         global file_lists ui_index ui_workdir
2131
2132         set flist $file_lists($w)
2133         if {$lno eq {}} {
2134                 set lno [find_anchor_pos $flist $path]
2135         } else {
2136                 incr lno -1
2137         }
2138
2139         if {$mmask ne {} && ![regexp {(^\^)|(\$$)} $mmask]} {
2140                 if {$w eq $ui_index} {
2141                         set mmask "^$mmask"
2142                 } else {
2143                         set mmask "$mmask\$"
2144                 }
2145         }
2146
2147         set idx [find_file_from $flist $lno 1 $path $mmask]
2148         if {$idx eq {}} {
2149                 incr lno -1
2150                 set idx [find_file_from $flist $lno -1 $path $mmask]
2151         }
2152
2153         if {$idx ne {}} {
2154                 set next_diff_w $w
2155                 set next_diff_p [lindex $flist $idx]
2156                 set next_diff_i [expr {$idx+1}]
2157                 return 1
2158         } else {
2159                 return 0
2160         }
2161 }
2162
2163 proc next_diff_after_action {w path {lno {}} {mmask {}}} {
2164         global current_diff_path
2165
2166         if {$path ne $current_diff_path} {
2167                 return {}
2168         } elseif {[find_next_diff $w $path $lno $mmask]} {
2169                 return {next_diff;}
2170         } else {
2171                 return {reshow_diff;}
2172         }
2173 }
2174
2175 proc select_first_diff {after} {
2176         global ui_workdir
2177
2178         if {[find_next_diff $ui_workdir {} 1 {^_?U}] ||
2179             [find_next_diff $ui_workdir {} 1 {[^O]$}]} {
2180                 next_diff $after
2181         } else {
2182                 uplevel #0 $after
2183         }
2184 }
2185
2186 proc force_first_diff {after} {
2187         global ui_workdir current_diff_path file_states
2188
2189         if {[info exists file_states($current_diff_path)]} {
2190                 set state [lindex $file_states($current_diff_path) 0]
2191         } else {
2192                 set state {OO}
2193         }
2194
2195         set reselect 0
2196         if {[string first {U} $state] >= 0} {
2197                 # Already a conflict, do nothing
2198         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {^_?U}]} {
2199                 set reselect 1
2200         } elseif {[string index $state 1] ne {O}} {
2201                 # Already a diff & no conflicts, do nothing
2202         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {[^O]$}]} {
2203                 set reselect 1
2204         }
2205
2206         if {$reselect} {
2207                 next_diff $after
2208         } else {
2209                 uplevel #0 $after
2210         }
2211 }
2212
2213 proc toggle_or_diff {w x y} {
2214         global file_states file_lists current_diff_path ui_index ui_workdir
2215         global last_clicked selected_paths
2216
2217         set pos [split [$w index @$x,$y] .]
2218         set lno [lindex $pos 0]
2219         set col [lindex $pos 1]
2220         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2221         if {$path eq {}} {
2222                 set last_clicked {}
2223                 return
2224         }
2225
2226         set last_clicked [list $w $lno]
2227         array unset selected_paths
2228         $ui_index tag remove in_sel 0.0 end
2229         $ui_workdir tag remove in_sel 0.0 end
2230
2231         # Determine the state of the file
2232         if {[info exists file_states($path)]} {
2233                 set state [lindex $file_states($path) 0]
2234         } else {
2235                 set state {__}
2236         }
2237
2238         # Restage the file, or simply show the diff
2239         if {$col == 0 && $y > 1} {
2240                 # Conflicts need special handling
2241                 if {[string first {U} $state] >= 0} {
2242                         # $w must always be $ui_workdir, but...
2243                         if {$w ne $ui_workdir} { set lno {} }
2244                         merge_stage_workdir $path $lno
2245                         return
2246                 }
2247
2248                 if {[string index $state 1] eq {O}} {
2249                         set mmask {}
2250                 } else {
2251                         set mmask {[^O]}
2252                 }
2253
2254                 set after [next_diff_after_action $w $path $lno $mmask]
2255
2256                 if {$w eq $ui_index} {
2257                         update_indexinfo \
2258                                 "Unstaging [short_path $path] from commit" \
2259                                 [list $path] \
2260                                 [concat $after [list ui_ready]]
2261                 } elseif {$w eq $ui_workdir} {
2262                         update_index \
2263                                 "Adding [short_path $path]" \
2264                                 [list $path] \
2265                                 [concat $after [list ui_ready]]
2266                 }
2267         } else {
2268                 show_diff $path $w $lno
2269         }
2270 }
2271
2272 proc add_one_to_selection {w x y} {
2273         global file_lists last_clicked selected_paths
2274
2275         set lno [lindex [split [$w index @$x,$y] .] 0]
2276         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2277         if {$path eq {}} {
2278                 set last_clicked {}
2279                 return
2280         }
2281
2282         if {$last_clicked ne {}
2283                 && [lindex $last_clicked 0] ne $w} {
2284                 array unset selected_paths
2285                 [lindex $last_clicked 0] tag remove in_sel 0.0 end
2286         }
2287
2288         set last_clicked [list $w $lno]
2289         if {[catch {set in_sel $selected_paths($path)}]} {
2290                 set in_sel 0
2291         }
2292         if {$in_sel} {
2293                 unset selected_paths($path)
2294                 $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
2295         } else {
2296                 set selected_paths($path) 1
2297                 $w tag add in_sel $lno.0 [expr {$lno + 1}].0
2298         }
2299 }
2300
2301 proc add_range_to_selection {w x y} {
2302         global file_lists last_clicked selected_paths
2303
2304         if {[lindex $last_clicked 0] ne $w} {
2305                 toggle_or_diff $w $x $y
2306                 return
2307         }
2308
2309         set lno [lindex [split [$w index @$x,$y] .] 0]
2310         set lc [lindex $last_clicked 1]
2311         if {$lc < $lno} {
2312                 set begin $lc
2313                 set end $lno
2314         } else {
2315                 set begin $lno
2316                 set end $lc
2317         }
2318
2319         foreach path [lrange $file_lists($w) \
2320                 [expr {$begin - 1}] \
2321                 [expr {$end - 1}]] {
2322                 set selected_paths($path) 1
2323         }
2324         $w tag add in_sel $begin.0 [expr {$end + 1}].0
2325 }
2326
2327 proc show_more_context {} {
2328         global repo_config
2329         if {$repo_config(gui.diffcontext) < 99} {
2330                 incr repo_config(gui.diffcontext)
2331                 reshow_diff
2332         }
2333 }
2334
2335 proc show_less_context {} {
2336         global repo_config
2337         if {$repo_config(gui.diffcontext) > 1} {
2338                 incr repo_config(gui.diffcontext) -1
2339                 reshow_diff
2340         }
2341 }
2342
2343 ######################################################################
2344 ##
2345 ## ui construction
2346
2347 load_config 0
2348 apply_config
2349 set ui_comm {}
2350
2351 # -- Menu Bar
2352 #
2353 menu .mbar -tearoff 0
2354 if {[is_MacOSX]} {
2355         # -- Apple Menu (Mac OS X only)
2356         #
2357         .mbar add cascade -label Apple -menu .mbar.apple
2358         menu .mbar.apple
2359 }
2360 .mbar add cascade -label [mc Repository] -menu .mbar.repository
2361 .mbar add cascade -label [mc Edit] -menu .mbar.edit
2362 if {[is_enabled branch]} {
2363         .mbar add cascade -label [mc Branch] -menu .mbar.branch
2364 }
2365 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2366         .mbar add cascade -label [mc Commit@@noun] -menu .mbar.commit
2367 }
2368 if {[is_enabled transport]} {
2369         .mbar add cascade -label [mc Merge] -menu .mbar.merge
2370         .mbar add cascade -label [mc Remote] -menu .mbar.remote
2371 }
2372 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2373         .mbar add cascade -label [mc Tools] -menu .mbar.tools
2374 }
2375
2376 # -- Repository Menu
2377 #
2378 menu .mbar.repository
2379
2380 .mbar.repository add command \
2381         -label [mc "Explore Working Copy"] \
2382         -command {do_explore}
2383 .mbar.repository add separator
2384
2385 .mbar.repository add command \
2386         -label [mc "Browse Current Branch's Files"] \
2387         -command {browser::new $current_branch}
2388 set ui_browse_current [.mbar.repository index last]
2389 .mbar.repository add command \
2390         -label [mc "Browse Branch Files..."] \
2391         -command browser_open::dialog
2392 .mbar.repository add separator
2393
2394 .mbar.repository add command \
2395         -label [mc "Visualize Current Branch's History"] \
2396         -command {do_gitk $current_branch}
2397 set ui_visualize_current [.mbar.repository index last]
2398 .mbar.repository add command \
2399         -label [mc "Visualize All Branch History"] \
2400         -command {do_gitk --all}
2401 .mbar.repository add separator
2402
2403 proc current_branch_write {args} {
2404         global current_branch
2405         .mbar.repository entryconf $::ui_browse_current \
2406                 -label [mc "Browse %s's Files" $current_branch]
2407         .mbar.repository entryconf $::ui_visualize_current \
2408                 -label [mc "Visualize %s's History" $current_branch]
2409 }
2410 trace add variable current_branch write current_branch_write
2411
2412 if {[is_enabled multicommit]} {
2413         .mbar.repository add command -label [mc "Database Statistics"] \
2414                 -command do_stats
2415
2416         .mbar.repository add command -label [mc "Compress Database"] \
2417                 -command do_gc
2418
2419         .mbar.repository add command -label [mc "Verify Database"] \
2420                 -command do_fsck_objects
2421
2422         .mbar.repository add separator
2423
2424         if {[is_Cygwin]} {
2425                 .mbar.repository add command \
2426                         -label [mc "Create Desktop Icon"] \
2427                         -command do_cygwin_shortcut
2428         } elseif {[is_Windows]} {
2429                 .mbar.repository add command \
2430                         -label [mc "Create Desktop Icon"] \
2431                         -command do_windows_shortcut
2432         } elseif {[is_MacOSX]} {
2433                 .mbar.repository add command \
2434                         -label [mc "Create Desktop Icon"] \
2435                         -command do_macosx_app
2436         }
2437 }
2438
2439 if {[is_MacOSX]} {
2440         proc ::tk::mac::Quit {args} { do_quit }
2441 } else {
2442         .mbar.repository add command -label [mc Quit] \
2443                 -command do_quit \
2444                 -accelerator $M1T-Q
2445 }
2446
2447 # -- Edit Menu
2448 #
2449 menu .mbar.edit
2450 .mbar.edit add command -label [mc Undo] \
2451         -command {catch {[focus] edit undo}} \
2452         -accelerator $M1T-Z
2453 .mbar.edit add command -label [mc Redo] \
2454         -command {catch {[focus] edit redo}} \
2455         -accelerator $M1T-Y
2456 .mbar.edit add separator
2457 .mbar.edit add command -label [mc Cut] \
2458         -command {catch {tk_textCut [focus]}} \
2459         -accelerator $M1T-X
2460 .mbar.edit add command -label [mc Copy] \
2461         -command {catch {tk_textCopy [focus]}} \
2462         -accelerator $M1T-C
2463 .mbar.edit add command -label [mc Paste] \
2464         -command {catch {tk_textPaste [focus]; [focus] see insert}} \
2465         -accelerator $M1T-V
2466 .mbar.edit add command -label [mc Delete] \
2467         -command {catch {[focus] delete sel.first sel.last}} \
2468         -accelerator Del
2469 .mbar.edit add separator
2470 .mbar.edit add command -label [mc "Select All"] \
2471         -command {catch {[focus] tag add sel 0.0 end}} \
2472         -accelerator $M1T-A
2473
2474 # -- Branch Menu
2475 #
2476 if {[is_enabled branch]} {
2477         menu .mbar.branch
2478
2479         .mbar.branch add command -label [mc "Create..."] \
2480                 -command branch_create::dialog \
2481                 -accelerator $M1T-N
2482         lappend disable_on_lock [list .mbar.branch entryconf \
2483                 [.mbar.branch index last] -state]
2484
2485         .mbar.branch add command -label [mc "Checkout..."] \
2486                 -command branch_checkout::dialog \
2487                 -accelerator $M1T-O
2488         lappend disable_on_lock [list .mbar.branch entryconf \
2489                 [.mbar.branch index last] -state]
2490
2491         .mbar.branch add command -label [mc "Rename..."] \
2492                 -command branch_rename::dialog
2493         lappend disable_on_lock [list .mbar.branch entryconf \
2494                 [.mbar.branch index last] -state]
2495
2496         .mbar.branch add command -label [mc "Delete..."] \
2497                 -command branch_delete::dialog
2498         lappend disable_on_lock [list .mbar.branch entryconf \
2499                 [.mbar.branch index last] -state]
2500
2501         .mbar.branch add command -label [mc "Reset..."] \
2502                 -command merge::reset_hard
2503         lappend disable_on_lock [list .mbar.branch entryconf \
2504                 [.mbar.branch index last] -state]
2505 }
2506
2507 # -- Commit Menu
2508 #
2509 proc commit_btn_caption {} {
2510         if {[is_enabled nocommit]} {
2511                 return [mc "Done"]
2512         } else {
2513                 return [mc Commit@@verb]
2514         }
2515 }
2516
2517 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2518         menu .mbar.commit
2519
2520         if {![is_enabled nocommit]} {
2521                 .mbar.commit add radiobutton \
2522                         -label [mc "New Commit"] \
2523                         -command do_select_commit_type \
2524                         -variable selected_commit_type \
2525                         -value new
2526                 lappend disable_on_lock \
2527                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2528
2529                 .mbar.commit add radiobutton \
2530                         -label [mc "Amend Last Commit"] \
2531                         -command do_select_commit_type \
2532                         -variable selected_commit_type \
2533                         -value amend
2534                 lappend disable_on_lock \
2535                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2536
2537                 .mbar.commit add separator
2538         }
2539
2540         .mbar.commit add command -label [mc Rescan] \
2541                 -command ui_do_rescan \
2542                 -accelerator F5
2543         lappend disable_on_lock \
2544                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2545
2546         .mbar.commit add command -label [mc "Stage To Commit"] \
2547                 -command do_add_selection \
2548                 -accelerator $M1T-T
2549         lappend disable_on_lock \
2550                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2551
2552         .mbar.commit add command -label [mc "Stage Changed Files To Commit"] \
2553                 -command do_add_all \
2554                 -accelerator $M1T-I
2555         lappend disable_on_lock \
2556                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2557
2558         .mbar.commit add command -label [mc "Unstage From Commit"] \
2559                 -command do_unstage_selection \
2560                 -accelerator $M1T-U
2561         lappend disable_on_lock \
2562                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2563
2564         .mbar.commit add command -label [mc "Revert Changes"] \
2565                 -command do_revert_selection \
2566                 -accelerator $M1T-J
2567         lappend disable_on_lock \
2568                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2569
2570         .mbar.commit add separator
2571
2572         .mbar.commit add command -label [mc "Show Less Context"] \
2573                 -command show_less_context \
2574                 -accelerator $M1T-\-
2575
2576         .mbar.commit add command -label [mc "Show More Context"] \
2577                 -command show_more_context \
2578                 -accelerator $M1T-=
2579
2580         .mbar.commit add separator
2581
2582         if {![is_enabled nocommitmsg]} {
2583                 .mbar.commit add command -label [mc "Sign Off"] \
2584                         -command do_signoff \
2585                         -accelerator $M1T-S
2586         }
2587
2588         .mbar.commit add command -label [commit_btn_caption] \
2589                 -command do_commit \
2590                 -accelerator $M1T-Return
2591         lappend disable_on_lock \
2592                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2593 }
2594
2595 # -- Merge Menu
2596 #
2597 if {[is_enabled branch]} {
2598         menu .mbar.merge
2599         .mbar.merge add command -label [mc "Local Merge..."] \
2600                 -command merge::dialog \
2601                 -accelerator $M1T-M
2602         lappend disable_on_lock \
2603                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2604         .mbar.merge add command -label [mc "Abort Merge..."] \
2605                 -command merge::reset_hard
2606         lappend disable_on_lock \
2607                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2608 }
2609
2610 # -- Transport Menu
2611 #
2612 if {[is_enabled transport]} {
2613         menu .mbar.remote
2614
2615         .mbar.remote add command \
2616                 -label [mc "Add..."] \
2617                 -command remote_add::dialog \
2618                 -accelerator $M1T-A
2619         .mbar.remote add command \
2620                 -label [mc "Push..."] \
2621                 -command do_push_anywhere \
2622                 -accelerator $M1T-P
2623         .mbar.remote add command \
2624                 -label [mc "Delete Branch..."] \
2625                 -command remote_branch_delete::dialog
2626 }
2627
2628 if {[is_MacOSX]} {
2629         proc ::tk::mac::ShowPreferences {} {do_options}
2630 } else {
2631         # -- Edit Menu
2632         #
2633         .mbar.edit add separator
2634         .mbar.edit add command -label [mc "Options..."] \
2635                 -command do_options
2636 }
2637
2638 # -- Tools Menu
2639 #
2640 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2641         set tools_menubar .mbar.tools
2642         menu $tools_menubar
2643         $tools_menubar add separator
2644         $tools_menubar add command -label [mc "Add..."] -command tools_add::dialog
2645         $tools_menubar add command -label [mc "Remove..."] -command tools_remove::dialog
2646         set tools_tailcnt 3
2647         if {[array names repo_config guitool.*.cmd] ne {}} {
2648                 tools_populate_all
2649         }
2650 }
2651
2652 # -- Help Menu
2653 #
2654 .mbar add cascade -label [mc Help] -menu .mbar.help
2655 menu .mbar.help
2656
2657 if {[is_MacOSX]} {
2658         .mbar.apple add command -label [mc "About %s" [appname]] \
2659                 -command do_about
2660         .mbar.apple add separator
2661 } else {
2662         .mbar.help add command -label [mc "About %s" [appname]] \
2663                 -command do_about
2664 }
2665 . configure -menu .mbar
2666
2667 set doc_path [githtmldir]
2668 if {$doc_path ne {}} {
2669         set doc_path [file join $doc_path index.html]
2670
2671         if {[is_Cygwin]} {
2672                 set doc_path [exec cygpath --mixed $doc_path]
2673         }
2674 }
2675
2676 if {[file isfile $doc_path]} {
2677         set doc_url "file:$doc_path"
2678 } else {
2679         set doc_url {http://www.kernel.org/pub/software/scm/git/docs/}
2680 }
2681
2682 proc start_browser {url} {
2683         git "web--browse" $url
2684 }
2685
2686 .mbar.help add command -label [mc "Online Documentation"] \
2687         -command [list start_browser $doc_url]
2688
2689 .mbar.help add command -label [mc "Show SSH Key"] \
2690         -command do_ssh_key
2691
2692 unset doc_path doc_url
2693
2694 # -- Standard bindings
2695 #
2696 wm protocol . WM_DELETE_WINDOW do_quit
2697 bind all <$M1B-Key-q> do_quit
2698 bind all <$M1B-Key-Q> do_quit
2699 bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
2700 bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
2701
2702 set subcommand_args {}
2703 proc usage {} {
2704         puts stderr "usage: $::argv0 $::subcommand $::subcommand_args"
2705         exit 1
2706 }
2707
2708 proc normalize_relpath {path} {
2709         set elements {}
2710         foreach item [file split $path] {
2711                 if {$item eq {.}} continue
2712                 if {$item eq {..} && [llength $elements] > 0
2713                     && [lindex $elements end] ne {..}} {
2714                         set elements [lrange $elements 0 end-1]
2715                         continue
2716                 }
2717                 lappend elements $item
2718         }
2719         return [eval file join $elements]
2720 }
2721
2722 # -- Not a normal commit type invocation?  Do that instead!
2723 #
2724 switch -- $subcommand {
2725 browser -
2726 blame {
2727         if {$subcommand eq "blame"} {
2728                 set subcommand_args {[--line=<num>] rev? path}
2729         } else {
2730                 set subcommand_args {rev? path}
2731         }
2732         if {$argv eq {}} usage
2733         set head {}
2734         set path {}
2735         set jump_spec {}
2736         set is_path 0
2737         foreach a $argv {
2738                 if {$is_path || [file exists $_prefix$a]} {
2739                         if {$path ne {}} usage
2740                         set path [normalize_relpath $_prefix$a]
2741                         break
2742                 } elseif {$a eq {--}} {
2743                         if {$path ne {}} {
2744                                 if {$head ne {}} usage
2745                                 set head $path
2746                                 set path {}
2747                         }
2748                         set is_path 1
2749                 } elseif {[regexp {^--line=(\d+)$} $a a lnum]} {
2750                         if {$jump_spec ne {} || $head ne {}} usage
2751                         set jump_spec [list $lnum]
2752                 } elseif {$head eq {}} {
2753                         if {$head ne {}} usage
2754                         set head $a
2755                         set is_path 1
2756                 } else {
2757                         usage
2758                 }
2759         }
2760         unset is_path
2761
2762         if {$head ne {} && $path eq {}} {
2763                 set path [normalize_relpath $_prefix$head]
2764                 set head {}
2765         }
2766
2767         if {$head eq {}} {
2768                 load_current_branch
2769         } else {
2770                 if {[regexp {^[0-9a-f]{1,39}$} $head]} {
2771                         if {[catch {
2772                                         set head [git rev-parse --verify $head]
2773                                 } err]} {
2774                                 puts stderr $err
2775                                 exit 1
2776                         }
2777                 }
2778                 set current_branch $head
2779         }
2780
2781         switch -- $subcommand {
2782         browser {
2783                 if {$jump_spec ne {}} usage
2784                 if {$head eq {}} {
2785                         if {$path ne {} && [file isdirectory $path]} {
2786                                 set head $current_branch
2787                         } else {
2788                                 set head $path
2789                                 set path {}
2790                         }
2791                 }
2792                 browser::new $head $path
2793         }
2794         blame   {
2795                 if {$head eq {} && ![file exists $path]} {
2796                         puts stderr [mc "fatal: cannot stat path %s: No such file or directory" $path]
2797                         exit 1
2798                 }
2799                 blame::new $head $path $jump_spec
2800         }
2801         }
2802         return
2803 }
2804 citool -
2805 gui {
2806         if {[llength $argv] != 0} {
2807                 puts -nonewline stderr "usage: $argv0"
2808                 if {$subcommand ne {gui}
2809                         && [file tail $argv0] ne "git-$subcommand"} {
2810                         puts -nonewline stderr " $subcommand"
2811                 }
2812                 puts stderr {}
2813                 exit 1
2814         }
2815         # fall through to setup UI for commits
2816 }
2817 default {
2818         puts stderr "usage: $argv0 \[{blame|browser|citool}\]"
2819         exit 1
2820 }
2821 }
2822
2823 # -- Branch Control
2824 #
2825 frame .branch \
2826         -borderwidth 1 \
2827         -relief sunken
2828 label .branch.l1 \
2829         -text [mc "Current Branch:"] \
2830         -anchor w \
2831         -justify left
2832 label .branch.cb \
2833         -textvariable current_branch \
2834         -anchor w \
2835         -justify left
2836 pack .branch.l1 -side left
2837 pack .branch.cb -side left -fill x
2838 pack .branch -side top -fill x
2839
2840 # -- Main Window Layout
2841 #
2842 panedwindow .vpane -orient horizontal
2843 panedwindow .vpane.files -orient vertical
2844 .vpane add .vpane.files -sticky nsew -height 100 -width 200
2845 pack .vpane -anchor n -side top -fill both -expand 1
2846
2847 # -- Index File List
2848 #
2849 frame .vpane.files.index -height 100 -width 200
2850 label .vpane.files.index.title -text [mc "Staged Changes (Will Commit)"] \
2851         -background lightgreen -foreground black
2852 text $ui_index -background white -foreground black \
2853         -borderwidth 0 \
2854         -width 20 -height 10 \
2855         -wrap none \
2856         -cursor $cursor_ptr \
2857         -xscrollcommand {.vpane.files.index.sx set} \
2858         -yscrollcommand {.vpane.files.index.sy set} \
2859         -state disabled
2860 scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
2861 scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
2862 pack .vpane.files.index.title -side top -fill x
2863 pack .vpane.files.index.sx -side bottom -fill x
2864 pack .vpane.files.index.sy -side right -fill y
2865 pack $ui_index -side left -fill both -expand 1
2866
2867 # -- Working Directory File List
2868 #
2869 frame .vpane.files.workdir -height 100 -width 200
2870 label .vpane.files.workdir.title -text [mc "Unstaged Changes"] \
2871         -background lightsalmon -foreground black
2872 text $ui_workdir -background white -foreground black \
2873         -borderwidth 0 \
2874         -width 20 -height 10 \
2875         -wrap none \
2876         -cursor $cursor_ptr \
2877         -xscrollcommand {.vpane.files.workdir.sx set} \
2878         -yscrollcommand {.vpane.files.workdir.sy set} \
2879         -state disabled
2880 scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
2881 scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
2882 pack .vpane.files.workdir.title -side top -fill x
2883 pack .vpane.files.workdir.sx -side bottom -fill x
2884 pack .vpane.files.workdir.sy -side right -fill y
2885 pack $ui_workdir -side left -fill both -expand 1
2886
2887 .vpane.files add .vpane.files.workdir -sticky nsew
2888 .vpane.files add .vpane.files.index -sticky nsew
2889
2890 foreach i [list $ui_index $ui_workdir] {
2891         rmsel_tag $i
2892         $i tag conf in_diff -background [$i tag cget in_sel -background]
2893 }
2894 unset i
2895
2896 # -- Diff and Commit Area
2897 #
2898 frame .vpane.lower -height 300 -width 400
2899 frame .vpane.lower.commarea
2900 frame .vpane.lower.diff -relief sunken -borderwidth 1
2901 pack .vpane.lower.diff -fill both -expand 1
2902 pack .vpane.lower.commarea -side bottom -fill x
2903 .vpane add .vpane.lower -sticky nsew
2904
2905 # -- Commit Area Buttons
2906 #
2907 frame .vpane.lower.commarea.buttons
2908 label .vpane.lower.commarea.buttons.l -text {} \
2909         -anchor w \
2910         -justify left
2911 pack .vpane.lower.commarea.buttons.l -side top -fill x
2912 pack .vpane.lower.commarea.buttons -side left -fill y
2913
2914 button .vpane.lower.commarea.buttons.rescan -text [mc Rescan] \
2915         -command ui_do_rescan
2916 pack .vpane.lower.commarea.buttons.rescan -side top -fill x
2917 lappend disable_on_lock \
2918         {.vpane.lower.commarea.buttons.rescan conf -state}
2919
2920 button .vpane.lower.commarea.buttons.incall -text [mc "Stage Changed"] \
2921         -command do_add_all
2922 pack .vpane.lower.commarea.buttons.incall -side top -fill x
2923 lappend disable_on_lock \
2924         {.vpane.lower.commarea.buttons.incall conf -state}
2925
2926 if {![is_enabled nocommitmsg]} {
2927         button .vpane.lower.commarea.buttons.signoff -text [mc "Sign Off"] \
2928                 -command do_signoff
2929         pack .vpane.lower.commarea.buttons.signoff -side top -fill x
2930 }
2931
2932 button .vpane.lower.commarea.buttons.commit -text [commit_btn_caption] \
2933         -command do_commit
2934 pack .vpane.lower.commarea.buttons.commit -side top -fill x
2935 lappend disable_on_lock \
2936         {.vpane.lower.commarea.buttons.commit conf -state}
2937
2938 if {![is_enabled nocommit]} {
2939         button .vpane.lower.commarea.buttons.push -text [mc Push] \
2940                 -command do_push_anywhere
2941         pack .vpane.lower.commarea.buttons.push -side top -fill x
2942 }
2943
2944 # -- Commit Message Buffer
2945 #
2946 frame .vpane.lower.commarea.buffer
2947 frame .vpane.lower.commarea.buffer.header
2948 set ui_comm .vpane.lower.commarea.buffer.t
2949 set ui_coml .vpane.lower.commarea.buffer.header.l
2950
2951 if {![is_enabled nocommit]} {
2952         radiobutton .vpane.lower.commarea.buffer.header.new \
2953                 -text [mc "New Commit"] \
2954                 -command do_select_commit_type \
2955                 -variable selected_commit_type \
2956                 -value new
2957         lappend disable_on_lock \
2958                 [list .vpane.lower.commarea.buffer.header.new conf -state]
2959         radiobutton .vpane.lower.commarea.buffer.header.amend \
2960                 -text [mc "Amend Last Commit"] \
2961                 -command do_select_commit_type \
2962                 -variable selected_commit_type \
2963                 -value amend
2964         lappend disable_on_lock \
2965                 [list .vpane.lower.commarea.buffer.header.amend conf -state]
2966 }
2967
2968 label $ui_coml \
2969         -anchor w \
2970         -justify left
2971 proc trace_commit_type {varname args} {
2972         global ui_coml commit_type
2973         switch -glob -- $commit_type {
2974         initial       {set txt [mc "Initial Commit Message:"]}
2975         amend         {set txt [mc "Amended Commit Message:"]}
2976         amend-initial {set txt [mc "Amended Initial Commit Message:"]}
2977         amend-merge   {set txt [mc "Amended Merge Commit Message:"]}
2978         merge         {set txt [mc "Merge Commit Message:"]}
2979         *             {set txt [mc "Commit Message:"]}
2980         }
2981         $ui_coml conf -text $txt
2982 }
2983 trace add variable commit_type write trace_commit_type
2984 pack $ui_coml -side left -fill x
2985
2986 if {![is_enabled nocommit]} {
2987         pack .vpane.lower.commarea.buffer.header.amend -side right
2988         pack .vpane.lower.commarea.buffer.header.new -side right
2989 }
2990
2991 text $ui_comm -background white -foreground black \
2992         -borderwidth 1 \
2993         -undo true \
2994         -maxundo 20 \
2995         -autoseparators true \
2996         -relief sunken \
2997         -width $repo_config(gui.commitmsgwidth) -height 9 -wrap none \
2998         -font font_diff \
2999         -yscrollcommand {.vpane.lower.commarea.buffer.sby set}
3000 scrollbar .vpane.lower.commarea.buffer.sby \
3001         -command [list $ui_comm yview]
3002 pack .vpane.lower.commarea.buffer.header -side top -fill x
3003 pack .vpane.lower.commarea.buffer.sby -side right -fill y
3004 pack $ui_comm -side left -fill y
3005 pack .vpane.lower.commarea.buffer -side left -fill y
3006
3007 # -- Commit Message Buffer Context Menu
3008 #
3009 set ctxm .vpane.lower.commarea.buffer.ctxm
3010 menu $ctxm -tearoff 0
3011 $ctxm add command \
3012         -label [mc Cut] \
3013         -command {tk_textCut $ui_comm}
3014 $ctxm add command \
3015         -label [mc Copy] \
3016         -command {tk_textCopy $ui_comm}
3017 $ctxm add command \
3018         -label [mc Paste] \
3019         -command {tk_textPaste $ui_comm}
3020 $ctxm add command \
3021         -label [mc Delete] \
3022         -command {catch {$ui_comm delete sel.first sel.last}}
3023 $ctxm add separator
3024 $ctxm add command \
3025         -label [mc "Select All"] \
3026         -command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
3027 $ctxm add command \
3028         -label [mc "Copy All"] \
3029         -command {
3030                 $ui_comm tag add sel 0.0 end
3031                 tk_textCopy $ui_comm
3032                 $ui_comm tag remove sel 0.0 end
3033         }
3034 $ctxm add separator
3035 $ctxm add command \
3036         -label [mc "Sign Off"] \
3037         -command do_signoff
3038 set ui_comm_ctxm $ctxm
3039
3040 # -- Diff Header
3041 #
3042 proc trace_current_diff_path {varname args} {
3043         global current_diff_path diff_actions file_states
3044         if {$current_diff_path eq {}} {
3045                 set s {}
3046                 set f {}
3047                 set p {}
3048                 set o disabled
3049         } else {
3050                 set p $current_diff_path
3051                 set s [mapdesc [lindex $file_states($p) 0] $p]
3052                 set f [mc "File:"]
3053                 set p [escape_path $p]
3054                 set o normal
3055         }
3056
3057         .vpane.lower.diff.header.status configure -text $s
3058         .vpane.lower.diff.header.file configure -text $f
3059         .vpane.lower.diff.header.path configure -text $p
3060         foreach w $diff_actions {
3061                 uplevel #0 $w $o
3062         }
3063 }
3064 trace add variable current_diff_path write trace_current_diff_path
3065
3066 frame .vpane.lower.diff.header -background gold
3067 label .vpane.lower.diff.header.status \
3068         -background gold \
3069         -foreground black \
3070         -width $max_status_desc \
3071         -anchor w \
3072         -justify left
3073 label .vpane.lower.diff.header.file \
3074         -background gold \
3075         -foreground black \
3076         -anchor w \
3077         -justify left
3078 label .vpane.lower.diff.header.path \
3079         -background gold \
3080         -foreground black \
3081         -anchor w \
3082         -justify left
3083 pack .vpane.lower.diff.header.status -side left
3084 pack .vpane.lower.diff.header.file -side left
3085 pack .vpane.lower.diff.header.path -fill x
3086 set ctxm .vpane.lower.diff.header.ctxm
3087 menu $ctxm -tearoff 0
3088 $ctxm add command \
3089         -label [mc Copy] \
3090         -command {
3091                 clipboard clear
3092                 clipboard append \
3093                         -format STRING \
3094                         -type STRING \
3095                         -- $current_diff_path
3096         }
3097 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3098 bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"
3099
3100 # -- Diff Body
3101 #
3102 frame .vpane.lower.diff.body
3103 set ui_diff .vpane.lower.diff.body.t
3104 text $ui_diff -background white -foreground black \
3105         -borderwidth 0 \
3106         -width 80 -height 5 -wrap none \
3107         -font font_diff \
3108         -xscrollcommand {.vpane.lower.diff.body.sbx set} \
3109         -yscrollcommand {.vpane.lower.diff.body.sby set} \
3110         -state disabled
3111 scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
3112         -command [list $ui_diff xview]
3113 scrollbar .vpane.lower.diff.body.sby -orient vertical \
3114         -command [list $ui_diff yview]
3115 pack .vpane.lower.diff.body.sbx -side bottom -fill x
3116 pack .vpane.lower.diff.body.sby -side right -fill y
3117 pack $ui_diff -side left -fill both -expand 1
3118 pack .vpane.lower.diff.header -side top -fill x
3119 pack .vpane.lower.diff.body -side bottom -fill both -expand 1
3120
3121 $ui_diff tag conf d_cr -elide true
3122 $ui_diff tag conf d_@ -foreground blue -font font_diffbold
3123 $ui_diff tag conf d_+ -foreground {#00a000}
3124 $ui_diff tag conf d_- -foreground red
3125
3126 $ui_diff tag conf d_++ -foreground {#00a000}
3127 $ui_diff tag conf d_-- -foreground red
3128 $ui_diff tag conf d_+s \
3129         -foreground {#00a000} \
3130         -background {#e2effa}
3131 $ui_diff tag conf d_-s \
3132         -foreground red \
3133         -background {#e2effa}
3134 $ui_diff tag conf d_s+ \
3135         -foreground {#00a000} \
3136         -background ivory1
3137 $ui_diff tag conf d_s- \
3138         -foreground red \
3139         -background ivory1
3140
3141 $ui_diff tag conf d<<<<<<< \
3142         -foreground orange \
3143         -font font_diffbold
3144 $ui_diff tag conf d======= \
3145         -foreground orange \
3146         -font font_diffbold
3147 $ui_diff tag conf d>>>>>>> \
3148         -foreground orange \
3149         -font font_diffbold
3150
3151 $ui_diff tag raise sel
3152
3153 # -- Diff Body Context Menu
3154 #
3155
3156 proc create_common_diff_popup {ctxm} {
3157         $ctxm add command \
3158                 -label [mc "Show Less Context"] \
3159                 -command show_less_context
3160         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3161         $ctxm add command \
3162                 -label [mc "Show More Context"] \
3163                 -command show_more_context
3164         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3165         $ctxm add separator
3166         $ctxm add command \
3167                 -label [mc Refresh] \
3168                 -command reshow_diff
3169         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3170         $ctxm add command \
3171                 -label [mc Copy] \
3172                 -command {tk_textCopy $ui_diff}
3173         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3174         $ctxm add command \
3175                 -label [mc "Select All"] \
3176                 -command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
3177         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3178         $ctxm add command \
3179                 -label [mc "Copy All"] \
3180                 -command {
3181                         $ui_diff tag add sel 0.0 end
3182                         tk_textCopy $ui_diff
3183                         $ui_diff tag remove sel 0.0 end
3184                 }
3185         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3186         $ctxm add separator
3187         $ctxm add command \
3188                 -label [mc "Decrease Font Size"] \
3189                 -command {incr_font_size font_diff -1}
3190         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3191         $ctxm add command \
3192                 -label [mc "Increase Font Size"] \
3193                 -command {incr_font_size font_diff 1}
3194         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3195         $ctxm add separator
3196         set emenu $ctxm.enc
3197         menu $emenu
3198         build_encoding_menu $emenu [list force_diff_encoding]
3199         $ctxm add cascade \
3200                 -label [mc "Encoding"] \
3201                 -menu $emenu
3202         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3203         $ctxm add separator
3204         $ctxm add command -label [mc "Options..."] \
3205                 -command do_options
3206 }
3207
3208 set ctxm .vpane.lower.diff.body.ctxm
3209 menu $ctxm -tearoff 0
3210 $ctxm add command \
3211         -label [mc "Apply/Reverse Hunk"] \
3212         -command {apply_hunk $cursorX $cursorY}
3213 set ui_diff_applyhunk [$ctxm index last]
3214 lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
3215 $ctxm add command \
3216         -label [mc "Apply/Reverse Line"] \
3217         -command {apply_line $cursorX $cursorY; do_rescan}
3218 set ui_diff_applyline [$ctxm index last]
3219 lappend diff_actions [list $ctxm entryconf $ui_diff_applyline -state]
3220 $ctxm add separator
3221 create_common_diff_popup $ctxm
3222
3223 set ctxmmg .vpane.lower.diff.body.ctxmmg
3224 menu $ctxmmg -tearoff 0
3225 $ctxmmg add command \
3226         -label [mc "Run Merge Tool"] \
3227         -command {merge_resolve_tool}
3228 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3229 $ctxmmg add separator
3230 $ctxmmg add command \
3231         -label [mc "Use Remote Version"] \
3232         -command {merge_resolve_one 3}
3233 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3234 $ctxmmg add command \
3235         -label [mc "Use Local Version"] \
3236         -command {merge_resolve_one 2}
3237 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3238 $ctxmmg add command \
3239         -label [mc "Revert To Base"] \
3240         -command {merge_resolve_one 1}
3241 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3242 $ctxmmg add separator
3243 create_common_diff_popup $ctxmmg
3244
3245 proc popup_diff_menu {ctxm ctxmmg x y X Y} {
3246         global current_diff_path file_states
3247         set ::cursorX $x
3248         set ::cursorY $y
3249         if {[info exists file_states($current_diff_path)]} {
3250                 set state [lindex $file_states($current_diff_path) 0]
3251         } else {
3252                 set state {__}
3253         }
3254         if {[string first {U} $state] >= 0} {
3255                 tk_popup $ctxmmg $X $Y
3256         } else {
3257                 if {$::ui_index eq $::current_diff_side} {
3258                         set l [mc "Unstage Hunk From Commit"]
3259                         set t [mc "Unstage Line From Commit"]
3260                 } else {
3261                         set l [mc "Stage Hunk For Commit"]
3262                         set t [mc "Stage Line For Commit"]
3263                 }
3264                 if {$::is_3way_diff || $::is_submodule_diff
3265                         || $current_diff_path eq {}
3266                         || {__} eq $state
3267                         || {_O} eq $state
3268                         || {_T} eq $state
3269                         || {T_} eq $state} {
3270                         set s disabled
3271                 } else {
3272                         set s normal
3273                 }
3274                 $ctxm entryconf $::ui_diff_applyhunk -state $s -label $l
3275                 $ctxm entryconf $::ui_diff_applyline -state $s -label $t
3276                 tk_popup $ctxm $X $Y
3277         }
3278 }
3279 bind_button3 $ui_diff [list popup_diff_menu $ctxm $ctxmmg %x %y %X %Y]
3280
3281 # -- Status Bar
3282 #
3283 set main_status [::status_bar::new .status]
3284 pack .status -anchor w -side bottom -fill x
3285 $main_status show [mc "Initializing..."]
3286
3287 # -- Load geometry
3288 #
3289 catch {
3290 set gm $repo_config(gui.geometry)
3291 wm geometry . [lindex $gm 0]
3292 .vpane sash place 0 \
3293         [lindex $gm 1] \
3294         [lindex [.vpane sash coord 0] 1]
3295 .vpane.files sash place 0 \
3296         [lindex [.vpane.files sash coord 0] 0] \
3297         [lindex $gm 2]
3298 unset gm
3299 }
3300
3301 # -- Load window state
3302 #
3303 catch {
3304 set gws $repo_config(gui.wmstate)
3305 wm state . $gws
3306 unset gws
3307 }
3308
3309 # -- Key Bindings
3310 #
3311 bind $ui_comm <$M1B-Key-Return> {do_commit;break}
3312 bind $ui_comm <$M1B-Key-t> {do_add_selection;break}
3313 bind $ui_comm <$M1B-Key-T> {do_add_selection;break}
3314 bind $ui_comm <$M1B-Key-u> {do_unstage_selection;break}
3315 bind $ui_comm <$M1B-Key-U> {do_unstage_selection;break}
3316 bind $ui_comm <$M1B-Key-j> {do_revert_selection;break}
3317 bind $ui_comm <$M1B-Key-J> {do_revert_selection;break}
3318 bind $ui_comm <$M1B-Key-i> {do_add_all;break}
3319 bind $ui_comm <$M1B-Key-I> {do_add_all;break}
3320 bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
3321 bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
3322 bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
3323 bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
3324 bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
3325 bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
3326 bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3327 bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3328 bind $ui_comm <$M1B-Key-minus> {show_less_context;break}
3329 bind $ui_comm <$M1B-Key-KP_Subtract> {show_less_context;break}
3330 bind $ui_comm <$M1B-Key-equal> {show_more_context;break}
3331 bind $ui_comm <$M1B-Key-plus> {show_more_context;break}
3332 bind $ui_comm <$M1B-Key-KP_Add> {show_more_context;break}
3333
3334 bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
3335 bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
3336 bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
3337 bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
3338 bind $ui_diff <$M1B-Key-v> {break}
3339 bind $ui_diff <$M1B-Key-V> {break}
3340 bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3341 bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3342 bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
3343 bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
3344 bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
3345 bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
3346 bind $ui_diff <Key-k>         {catch {%W yview scroll -1 units};break}
3347 bind $ui_diff <Key-j>         {catch {%W yview scroll  1 units};break}
3348 bind $ui_diff <Key-h>         {catch {%W xview scroll -1 units};break}
3349 bind $ui_diff <Key-l>         {catch {%W xview scroll  1 units};break}
3350 bind $ui_diff <Control-Key-b> {catch {%W yview scroll -1 pages};break}
3351 bind $ui_diff <Control-Key-f> {catch {%W yview scroll  1 pages};break}
3352 bind $ui_diff <Button-1>   {focus %W}
3353
3354 if {[is_enabled branch]} {
3355         bind . <$M1B-Key-n> branch_create::dialog
3356         bind . <$M1B-Key-N> branch_create::dialog
3357         bind . <$M1B-Key-o> branch_checkout::dialog
3358         bind . <$M1B-Key-O> branch_checkout::dialog
3359         bind . <$M1B-Key-m> merge::dialog
3360         bind . <$M1B-Key-M> merge::dialog
3361 }
3362 if {[is_enabled transport]} {
3363         bind . <$M1B-Key-p> do_push_anywhere
3364         bind . <$M1B-Key-P> do_push_anywhere
3365 }
3366
3367 bind .   <Key-F5>     ui_do_rescan
3368 bind .   <$M1B-Key-r> ui_do_rescan
3369 bind .   <$M1B-Key-R> ui_do_rescan
3370 bind .   <$M1B-Key-s> do_signoff
3371 bind .   <$M1B-Key-S> do_signoff
3372 bind .   <$M1B-Key-t> do_add_selection
3373 bind .   <$M1B-Key-T> do_add_selection
3374 bind .   <$M1B-Key-i> do_add_all
3375 bind .   <$M1B-Key-I> do_add_all
3376 bind .   <$M1B-Key-minus> {show_less_context;break}
3377 bind .   <$M1B-Key-KP_Subtract> {show_less_context;break}
3378 bind .   <$M1B-Key-equal> {show_more_context;break}
3379 bind .   <$M1B-Key-plus> {show_more_context;break}
3380 bind .   <$M1B-Key-KP_Add> {show_more_context;break}
3381 bind .   <$M1B-Key-Return> do_commit
3382 foreach i [list $ui_index $ui_workdir] {
3383         bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
3384         bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
3385         bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
3386 }
3387 unset i
3388
3389 set file_lists($ui_index) [list]
3390 set file_lists($ui_workdir) [list]
3391
3392 wm title . "[appname] ([reponame]) [file normalize [file dirname [gitdir]]]"
3393 focus -force $ui_comm
3394
3395 # -- Warn the user about environmental problems.  Cygwin's Tcl
3396 #    does *not* pass its env array onto any processes it spawns.
3397 #    This means that git processes get none of our environment.
3398 #
3399 if {[is_Cygwin]} {
3400         set ignored_env 0
3401         set suggest_user {}
3402         set msg [mc "Possible environment issues exist.
3403
3404 The following environment variables are probably
3405 going to be ignored by any Git subprocess run
3406 by %s:
3407
3408 " [appname]]
3409         foreach name [array names env] {
3410                 switch -regexp -- $name {
3411                 {^GIT_INDEX_FILE$} -
3412                 {^GIT_OBJECT_DIRECTORY$} -
3413                 {^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
3414                 {^GIT_DIFF_OPTS$} -
3415                 {^GIT_EXTERNAL_DIFF$} -
3416                 {^GIT_PAGER$} -
3417                 {^GIT_TRACE$} -
3418                 {^GIT_CONFIG$} -
3419                 {^GIT_(AUTHOR|COMMITTER)_DATE$} {
3420                         append msg " - $name\n"
3421                         incr ignored_env
3422                 }
3423                 {^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
3424                         append msg " - $name\n"
3425                         incr ignored_env
3426                         set suggest_user $name
3427                 }
3428                 }
3429         }
3430         if {$ignored_env > 0} {
3431                 append msg [mc "
3432 This is due to a known issue with the
3433 Tcl binary distributed by Cygwin."]
3434
3435                 if {$suggest_user ne {}} {
3436                         append msg [mc "
3437
3438 A good replacement for %s
3439 is placing values for the user.name and
3440 user.email settings into your personal
3441 ~/.gitconfig file.
3442 " $suggest_user]
3443                 }
3444                 warn_popup $msg
3445         }
3446         unset ignored_env msg suggest_user name
3447 }
3448
3449 # -- Only initialize complex UI if we are going to stay running.
3450 #
3451 if {[is_enabled transport]} {
3452         load_all_remotes
3453
3454         set n [.mbar.remote index end]
3455         populate_remotes_menu
3456         set n [expr {[.mbar.remote index end] - $n}]
3457         if {$n > 0} {
3458                 if {[.mbar.remote type 0] eq "tearoff"} { incr n }
3459                 .mbar.remote insert $n separator
3460         }
3461         unset n
3462 }
3463
3464 if {[winfo exists $ui_comm]} {
3465         set GITGUI_BCK_exists [load_message GITGUI_BCK]
3466
3467         # -- If both our backup and message files exist use the
3468         #    newer of the two files to initialize the buffer.
3469         #
3470         if {$GITGUI_BCK_exists} {
3471                 set m [gitdir GITGUI_MSG]
3472                 if {[file isfile $m]} {
3473                         if {[file mtime [gitdir GITGUI_BCK]] > [file mtime $m]} {
3474                                 catch {file delete [gitdir GITGUI_MSG]}
3475                         } else {
3476                                 $ui_comm delete 0.0 end
3477                                 $ui_comm edit reset
3478                                 $ui_comm edit modified false
3479                                 catch {file delete [gitdir GITGUI_BCK]}
3480                                 set GITGUI_BCK_exists 0
3481                         }
3482                 }
3483                 unset m
3484         }
3485
3486         proc backup_commit_buffer {} {
3487                 global ui_comm GITGUI_BCK_exists
3488
3489                 set m [$ui_comm edit modified]
3490                 if {$m || $GITGUI_BCK_exists} {
3491                         set msg [string trim [$ui_comm get 0.0 end]]
3492                         regsub -all -line {[ \r\t]+$} $msg {} msg
3493
3494                         if {$msg eq {}} {
3495                                 if {$GITGUI_BCK_exists} {
3496                                         catch {file delete [gitdir GITGUI_BCK]}
3497                                         set GITGUI_BCK_exists 0
3498                                 }
3499                         } elseif {$m} {
3500                                 catch {
3501                                         set fd [open [gitdir GITGUI_BCK] w]
3502                                         puts -nonewline $fd $msg
3503                                         close $fd
3504                                         set GITGUI_BCK_exists 1
3505                                 }
3506                         }
3507
3508                         $ui_comm edit modified false
3509                 }
3510
3511                 set ::GITGUI_BCK_i [after 2000 backup_commit_buffer]
3512         }
3513
3514         backup_commit_buffer
3515
3516         # -- If the user has aspell available we can drive it
3517         #    in pipe mode to spellcheck the commit message.
3518         #
3519         set spell_cmd [list |]
3520         set spell_dict [get_config gui.spellingdictionary]
3521         lappend spell_cmd aspell
3522         if {$spell_dict ne {}} {
3523                 lappend spell_cmd --master=$spell_dict
3524         }
3525         lappend spell_cmd --mode=none
3526         lappend spell_cmd --encoding=utf-8
3527         lappend spell_cmd pipe
3528         if {$spell_dict eq {none}
3529          || [catch {set spell_fd [open $spell_cmd r+]} spell_err]} {
3530                 bind_button3 $ui_comm [list tk_popup $ui_comm_ctxm %X %Y]
3531         } else {
3532                 set ui_comm_spell [spellcheck::init \
3533                         $spell_fd \
3534                         $ui_comm \
3535                         $ui_comm_ctxm \
3536                 ]
3537         }
3538         unset -nocomplain spell_cmd spell_fd spell_err spell_dict
3539 }
3540
3541 lock_index begin-read
3542 if {![winfo ismapped .]} {
3543         wm deiconify .
3544 }
3545 after 1 {
3546         if {[is_enabled initialamend]} {
3547                 force_amend
3548         } else {
3549                 do_rescan
3550         }
3551
3552         if {[is_enabled nocommitmsg]} {
3553                 $ui_comm configure -state disabled -background gray
3554         }
3555 }
3556 if {[is_enabled multicommit]} {
3557         after 1000 hint_gc
3558 }
3559 if {[is_enabled retcode]} {
3560         bind . <Destroy> {+terminate_me %W}
3561 }
3562 if {$picked && [is_config_true gui.autoexplore]} {
3563         do_explore
3564 }