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