git-gui/git-gui.sh

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