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 "git-gui: fatal error" \
  42                 -message $err
  43         exit 1
  44 }
  45
  46 catch {rename send {}} ; # What an evil concept...
  47
  48 ######################################################################
  49 ##
  50 ## locate our library
  51
  52 set oguilib {@@GITGUI_LIBDIR@@}
  53 set oguirel {@@GITGUI_RELATIVE@@}
  54 if {$oguirel eq {1}} {
  55         set oguilib [file dirname [file normalize $argv0]]
  56         if {[file tail $oguilib] eq {git-core}} {
  57                 set oguilib [file dirname $oguilib]
  58         }
  59         set oguilib [file dirname $oguilib]
  60         set oguilib [file join $oguilib share git-gui lib]
  61         set oguimsg [file join $oguilib msgs]
  62 } elseif {[string match @@* $oguirel]} {
  63         set oguilib [file join [file dirname [file normalize $argv0]] lib]
  64         set oguimsg [file join [file dirname [file normalize $argv0]] po]
  65 } else {
  66         set oguimsg [file join $oguilib msgs]
  67 }
  68 unset oguirel
  69
  70 ######################################################################
  71 ##
  72 ## enable verbose loading?
  73
  74 if {![catch {set _verbose $env(GITGUI_VERBOSE)}]} {
  75         unset _verbose
  76         rename auto_load real__auto_load
  77         proc auto_load {name args} {
  78                 puts stderr "auto_load $name"
  79                 return [uplevel 1 real__auto_load $name $args]
  80         }
  81         rename source real__source
  82         proc source {name} {
  83                 puts stderr "source    $name"
  84                 uplevel 1 real__source $name
  85         }
  86 }
  87
  88 ######################################################################
  89 ##
  90 ## Internationalization (i18n) through msgcat and gettext. See
  91 ## http://www.gnu.org/software/gettext/manual/html_node/Tcl.html
  92
  93 package require msgcat
  94
  95 proc _mc_trim {fmt} {
  96         set cmk [string first @@ $fmt]
  97         if {$cmk > 0} {
  98                 return [string range $fmt 0 [expr {$cmk - 1}]]
  99         }
 100         return $fmt
 101 }
 102
 103 proc mc {en_fmt args} {
 104         set fmt [_mc_trim [::msgcat::mc $en_fmt]]
 105         if {[catch {set msg [eval [list format $fmt] $args]} err]} {
 106                 set msg [eval [list format [_mc_trim $en_fmt]] $args]
 107         }
 108         return $msg
 109 }
 110
 111 proc strcat {args} {
 112         return [join $args {}]
 113 }
 114
 115 ::msgcat::mcload $oguimsg
 116 unset oguimsg
 117
 118 ######################################################################
 119 ##
 120 ## read only globals
 121
 122 set _appname {Git Gui}
 123 set _gitdir {}
 124 set _gitworktree {}
 125 set _isbare {}
 126 set _gitexec {}
 127 set _githtmldir {}
 128 set _reponame {}
 129 set _iscygwin {}
 130 set _search_path {}
 131
 132 set _trace [lsearch -exact $argv --trace]
 133 if {$_trace >= 0} {
 134         set argv [lreplace $argv $_trace $_trace]
 135         set _trace 1
 136 } else {
 137         set _trace 0
 138 }
 139
 140 proc appname {} {
 141         global _appname
 142         return $_appname
 143 }
 144
 145 proc gitdir {args} {
 146         global _gitdir
 147         if {$args eq {}} {
 148                 return $_gitdir
 149         }
 150         return [eval [list file join $_gitdir] $args]
 151 }
 152
 153 proc gitexec {args} {
 154         global _gitexec
 155         if {$_gitexec eq {}} {
 156                 if {[catch {set _gitexec [git --exec-path]} err]} {
 157                         error "Git not installed?\n\n$err"
 158                 }
 159                 if {[is_Cygwin]} {
 160                         set _gitexec [exec cygpath \
 161                                 --windows \
 162                                 --absolute \
 163                                 $_gitexec]
 164                 } else {
 165                         set _gitexec [file normalize $_gitexec]
 166                 }
 167         }
 168         if {$args eq {}} {
 169                 return $_gitexec
 170         }
 171         return [eval [list file join $_gitexec] $args]
 172 }
 173
 174 proc githtmldir {args} {
 175         global _githtmldir
 176         if {$_githtmldir eq {}} {
 177                 if {[catch {set _githtmldir [git --html-path]}]} {
 178                         # Git not installed or option not yet supported
 179                         return {}
 180                 }
 181                 if {[is_Cygwin]} {
 182                         set _githtmldir [exec cygpath \
 183                                 --windows \
 184                                 --absolute \
 185                                 $_githtmldir]
 186                 } else {
 187                         set _githtmldir [file normalize $_githtmldir]
 188                 }
 189         }
 190         if {$args eq {}} {
 191                 return $_githtmldir
 192         }
 193         return [eval [list file join $_githtmldir] $args]
 194 }
 195
 196 proc reponame {} {
 197         return $::_reponame
 198 }
 199
 200 proc is_MacOSX {} {
 201         if {[tk windowingsystem] eq {aqua}} {
 202                 return 1
 203         }
 204         return 0
 205 }
 206
 207 proc is_Windows {} {
 208         if {$::tcl_platform(platform) eq {windows}} {
 209                 return 1
 210         }
 211         return 0
 212 }
 213
 214 proc is_Cygwin {} {
 215         global _iscygwin
 216         if {$_iscygwin eq {}} {
 217                 if {$::tcl_platform(platform) eq {windows}} {
 218                         if {[catch {set p [exec cygpath --windir]} err]} {
 219                                 set _iscygwin 0
 220                         } else {
 221                                 set _iscygwin 1
 222                         }
 223                 } else {
 224                         set _iscygwin 0
 225                 }
 226         }
 227         return $_iscygwin
 228 }
 229
 230 proc is_enabled {option} {
 231         global enabled_options
 232         if {[catch {set on $enabled_options($option)}]} {return 0}
 233         return $on
 234 }
 235
 236 proc enable_option {option} {
 237         global enabled_options
 238         set enabled_options($option) 1
 239 }
 240
 241 proc disable_option {option} {
 242         global enabled_options
 243         set enabled_options($option) 0
 244 }
 245
 246 ######################################################################
 247 ##
 248 ## config
 249
 250 proc is_many_config {name} {
 251         switch -glob -- $name {
 252         gui.recentrepo -
 253         remote.*.fetch -
 254         remote.*.push
 255                 {return 1}
 256         *
 257                 {return 0}
 258         }
 259 }
 260
 261 proc is_config_true {name} {
 262         global repo_config
 263         if {[catch {set v $repo_config($name)}]} {
 264                 return 0
 265         } elseif {$v eq {true} || $v eq {1} || $v eq {yes}} {
 266                 return 1
 267         } else {
 268                 return 0
 269         }
 270 }
 271
 272 proc is_config_false {name} {
 273         global repo_config
 274         if {[catch {set v $repo_config($name)}]} {
 275                 return 0
 276         } elseif {$v eq {false} || $v eq {0} || $v eq {no}} {
 277                 return 1
 278         } else {
 279                 return 0
 280         }
 281 }
 282
 283 proc get_config {name} {
 284         global repo_config
 285         if {[catch {set v $repo_config($name)}]} {
 286                 return {}
 287         } else {
 288                 return $v
 289         }
 290 }
 291
 292 proc is_bare {} {
 293         global _isbare
 294         global _gitdir
 295         global _gitworktree
 296
 297         if {$_isbare eq {}} {
 298                 if {[catch {
 299                         set _bare [git rev-parse --is-bare-repository]
 300                         switch  -- $_bare {
 301                         true { set _isbare 1 }
 302                         false { set _isbare 0}
 303                         default { throw }
 304                         }
 305                 }]} {
 306                         if {[is_config_true core.bare]
 307                                 || ($_gitworktree eq {}
 308                                         && [lindex [file split $_gitdir] end] ne {.git})} {
 309                                 set _isbare 1
 310                         } else {
 311                                 set _isbare 0
 312                         }
 313                 }
 314         }
 315         return $_isbare
 316 }
 317
 318 ######################################################################
 319 ##
 320 ## handy utils
 321
 322 proc _trace_exec {cmd} {
 323         if {!$::_trace} return
 324         set d {}
 325         foreach v $cmd {
 326                 if {$d ne {}} {
 327                         append d { }
 328                 }
 329                 if {[regexp {[ \t\r\n'"$?*]} $v]} {
 330                         set v [sq $v]
 331                 }
 332                 append d $v
 333         }
 334         puts stderr $d
 335 }
 336
 337 #'"  fix poor old emacs font-lock mode
 338
 339 proc _git_cmd {name} {
 340         global _git_cmd_path
 341
 342         if {[catch {set v $_git_cmd_path($name)}]} {
 343                 switch -- $name {
 344                   version   -
 345                 --version   -
 346                 --exec-path { return [list $::_git $name] }
 347                 }
 348
 349                 set p [gitexec git-$name$::_search_exe]
 350                 if {[file exists $p]} {
 351                         set v [list $p]
 352                 } elseif {[is_Windows] && [file exists [gitexec git-$name]]} {
 353                         # Try to determine what sort of magic will make
 354                         # git-$name go and do its thing, because native
 355                         # Tcl on Windows doesn't know it.
 356                         #
 357                         set p [gitexec git-$name]
 358                         set f [open $p r]
 359                         set s [gets $f]
 360                         close $f
 361
 362                         switch -glob -- [lindex $s 0] {
 363                         #!*sh     { set i sh     }
 364                         #!*perl   { set i perl   }
 365                         #!*python { set i python }
 366                         default   { error "git-$name is not supported: $s" }
 367                         }
 368
 369                         upvar #0 _$i interp
 370                         if {![info exists interp]} {
 371                                 set interp [_which $i]
 372                         }
 373                         if {$interp eq {}} {
 374                                 error "git-$name requires $i (not in PATH)"
 375                         }
 376                         set v [concat [list $interp] [lrange $s 1 end] [list $p]]
 377                 } else {
 378                         # Assume it is builtin to git somehow and we
 379                         # aren't actually able to see a file for it.
 380                         #
 381                         set v [list $::_git $name]
 382                 }
 383                 set _git_cmd_path($name) $v
 384         }
 385         return $v
 386 }
 387
 388 proc _which {what args} {
 389         global env _search_exe _search_path
 390
 391         if {$_search_path eq {}} {
 392                 if {[is_Cygwin] && [regexp {^(/|\.:)} $env(PATH)]} {
 393                         set _search_path [split [exec cygpath \
 394                                 --windows \
 395                                 --path \
 396                                 --absolute \
 397                                 $env(PATH)] {;}]
 398                         set _search_exe .exe
 399                 } elseif {[is_Windows]} {
 400                         set gitguidir [file dirname [info script]]
 401                         regsub -all ";" $gitguidir "\\;" gitguidir
 402                         set env(PATH) "$gitguidir;$env(PATH)"
 403                         set _search_path [split $env(PATH) {;}]
 404                         set _search_exe .exe
 405                 } else {
 406                         set _search_path [split $env(PATH) :]
 407                         set _search_exe {}
 408                 }
 409         }
 410
 411         if {[is_Windows] && [lsearch -exact $args -script] >= 0} {
 412                 set suffix {}
 413         } else {
 414                 set suffix $_search_exe
 415         }
 416
 417         foreach p $_search_path {
 418                 set p [file join $p $what$suffix]
 419                 if {[file exists $p]} {
 420                         return [file normalize $p]
 421                 }
 422         }
 423         return {}
 424 }
 425
 426 proc _lappend_nice {cmd_var} {
 427         global _nice
 428         upvar $cmd_var cmd
 429
 430         if {![info exists _nice]} {
 431                 set _nice [_which nice]
 432                 if {[catch {exec $_nice git version}]} {
 433                         set _nice {}
 434                 }
 435         }
 436         if {$_nice ne {}} {
 437                 lappend cmd $_nice
 438         }
 439 }
 440
 441 proc git {args} {
 442         set opt [list]
 443
 444         while {1} {
 445                 switch -- [lindex $args 0] {
 446                 --nice {
 447                         _lappend_nice opt
 448                 }
 449
 450                 default {
 451                         break
 452                 }
 453
 454                 }
 455
 456                 set args [lrange $args 1 end]
 457         }
 458
 459         set cmdp [_git_cmd [lindex $args 0]]
 460         set args [lrange $args 1 end]
 461
 462         _trace_exec [concat $opt $cmdp $args]
 463         set result [eval exec $opt $cmdp $args]
 464         if {$::_trace} {
 465                 puts stderr "< $result"
 466         }
 467         return $result
 468 }
 469
 470 proc _open_stdout_stderr {cmd} {
 471         _trace_exec $cmd
 472         if {[catch {
 473                         set fd [open [concat [list | ] $cmd] r]
 474                 } err]} {
 475                 if {   [lindex $cmd end] eq {2>@1}
 476                     && $err eq {can not find channel named "1"}
 477                         } {
 478                         # Older versions of Tcl 8.4 don't have this 2>@1 IO
 479                         # redirect operator.  Fallback to |& cat for those.
 480                         # The command was not actually started, so its safe
 481                         # to try to start it a second time.
 482                         #
 483                         set fd [open [concat \
 484                                 [list | ] \
 485                                 [lrange $cmd 0 end-1] \
 486                                 [list |& cat] \
 487                                 ] r]
 488                 } else {
 489                         error $err
 490                 }
 491         }
 492         fconfigure $fd -eofchar {}
 493         return $fd
 494 }
 495
 496 proc git_read {args} {
 497         set opt [list]
 498
 499         while {1} {
 500                 switch -- [lindex $args 0] {
 501                 --nice {
 502                         _lappend_nice opt
 503                 }
 504
 505                 --stderr {
 506                         lappend args 2>@1
 507                 }
 508
 509                 default {
 510                         break
 511                 }
 512
 513                 }
 514
 515                 set args [lrange $args 1 end]
 516         }
 517
 518         set cmdp [_git_cmd [lindex $args 0]]
 519         set args [lrange $args 1 end]
 520
 521         return [_open_stdout_stderr [concat $opt $cmdp $args]]
 522 }
 523
 524 proc git_write {args} {
 525         set opt [list]
 526
 527         while {1} {
 528                 switch -- [lindex $args 0] {
 529                 --nice {
 530                         _lappend_nice opt
 531                 }
 532
 533                 default {
 534                         break
 535                 }
 536
 537                 }
 538
 539                 set args [lrange $args 1 end]
 540         }
 541
 542         set cmdp [_git_cmd [lindex $args 0]]
 543         set args [lrange $args 1 end]
 544
 545         _trace_exec [concat $opt $cmdp $args]
 546         return [open [concat [list | ] $opt $cmdp $args] w]
 547 }
 548
 549 proc githook_read {hook_name args} {
 550         set pchook [gitdir hooks $hook_name]
 551         lappend args 2>@1
 552
 553         # On Windows [file executable] might lie so we need to ask
 554         # the shell if the hook is executable.  Yes that's annoying.
 555         #
 556         if {[is_Windows]} {
 557                 upvar #0 _sh interp
 558                 if {![info exists interp]} {
 559                         set interp [_which sh]
 560                 }
 561                 if {$interp eq {}} {
 562                         error "hook execution requires sh (not in PATH)"
 563                 }
 564
 565                 set scr {if test -x "$1";then exec "$@";fi}
 566                 set sh_c [list $interp -c $scr $interp $pchook]
 567                 return [_open_stdout_stderr [concat $sh_c $args]]
 568         }
 569
 570         if {[file executable $pchook]} {
 571                 return [_open_stdout_stderr [concat [list $pchook] $args]]
 572         }
 573
 574         return {}
 575 }
 576
 577 proc kill_file_process {fd} {
 578         set process [pid $fd]
 579
 580         catch {
 581                 if {[is_Windows]} {
 582                         # Use a Cygwin-specific flag to allow killing
 583                         # native Windows processes
 584                         exec kill -f $process
 585                 } else {
 586                         exec kill $process
 587                 }
 588         }
 589 }
 590
 591 proc gitattr {path attr default} {
 592         if {[catch {set r [git check-attr $attr -- $path]}]} {
 593                 set r unspecified
 594         } else {
 595                 set r [join [lrange [split $r :] 2 end] :]
 596                 regsub {^ } $r {} r
 597         }
 598         if {$r eq {unspecified}} {
 599                 return $default
 600         }
 601         return $r
 602 }
 603
 604 proc sq {value} {
 605         regsub -all ' $value "'\\''" value
 606         return "'$value'"
 607 }
 608
 609 proc load_current_branch {} {
 610         global current_branch is_detached
 611
 612         set fd [open [gitdir HEAD] r]
 613         if {[gets $fd ref] < 1} {
 614                 set ref {}
 615         }
 616         close $fd
 617
 618         set pfx {ref: refs/heads/}
 619         set len [string length $pfx]
 620         if {[string equal -length $len $pfx $ref]} {
 621                 # We're on a branch.  It might not exist.  But
 622                 # HEAD looks good enough to be a branch.
 623                 #
 624                 set current_branch [string range $ref $len end]
 625                 set is_detached 0
 626         } else {
 627                 # Assume this is a detached head.
 628                 #
 629                 set current_branch HEAD
 630                 set is_detached 1
 631         }
 632 }
 633
 634 auto_load tk_optionMenu
 635 rename tk_optionMenu real__tkOptionMenu
 636 proc tk_optionMenu {w varName args} {
 637         set m [eval real__tkOptionMenu $w $varName $args]
 638         $m configure -font font_ui
 639         $w configure -font font_ui
 640         return $m
 641 }
 642
 643 proc rmsel_tag {text} {
 644         $text tag conf sel \
 645                 -background [$text cget -background] \
 646                 -foreground [$text cget -foreground] \
 647                 -borderwidth 0
 648         $text tag conf in_sel -background lightgray
 649         bind $text <Motion> break
 650         return $text
 651 }
 652
 653 wm withdraw .
 654 set root_exists 0
 655 bind . <Visibility> {
 656         bind . <Visibility> {}
 657         set root_exists 1
 658 }
 659
 660 if {[is_Windows]} {
 661         wm iconbitmap . -default $oguilib/git-gui.ico
 662         set ::tk::AlwaysShowSelection 1
 663
 664         # Spoof an X11 display for SSH
 665         if {![info exists env(DISPLAY)]} {
 666                 set env(DISPLAY) :9999
 667         }
 668 } else {
 669         catch {
 670                 image create photo gitlogo -width 16 -height 16
 671
 672                 gitlogo put #33CC33 -to  7  0  9  2
 673                 gitlogo put #33CC33 -to  4  2 12  4
 674                 gitlogo put #33CC33 -to  7  4  9  6
 675                 gitlogo put #CC3333 -to  4  6 12  8
 676                 gitlogo put gray26  -to  4  9  6 10
 677                 gitlogo put gray26  -to  3 10  6 12
 678                 gitlogo put gray26  -to  8  9 13 11
 679                 gitlogo put gray26  -to  8 11 10 12
 680                 gitlogo put gray26  -to 11 11 13 14
 681                 gitlogo put gray26  -to  3 12  5 14
 682                 gitlogo put gray26  -to  5 13
 683                 gitlogo put gray26  -to 10 13
 684                 gitlogo put gray26  -to  4 14 12 15
 685                 gitlogo put gray26  -to  5 15 11 16
 686                 gitlogo redither
 687
 688                 wm iconphoto . -default gitlogo
 689         }
 690 }
 691
 692 ######################################################################
 693 ##
 694 ## config defaults
 695
 696 set cursor_ptr arrow
 697 font create font_ui
 698 if {[lsearch -exact [font names] TkDefaultFont] != -1} {
 699         eval [linsert [font actual TkDefaultFont] 0 font configure font_ui]
 700         eval [linsert [font actual TkFixedFont] 0 font create font_diff]
 701 } else {
 702         font create font_diff -family Courier -size 10
 703         catch {
 704                 label .dummy
 705                 eval font configure font_ui [font actual [.dummy cget -font]]
 706                 destroy .dummy
 707         }
 708 }
 709
 710 font create font_uiitalic
 711 font create font_uibold
 712 font create font_diffbold
 713 font create font_diffitalic
 714
 715 foreach class {Button Checkbutton Entry Label
 716                 Labelframe Listbox Message
 717                 Radiobutton Spinbox Text} {
 718         option add *$class.font font_ui
 719 }
 720 if {![is_MacOSX]} {
 721         option add *Menu.font font_ui
 722         option add *Entry.borderWidth 1 startupFile
 723         option add *Entry.relief sunken startupFile
 724         option add *RadioButton.anchor w startupFile
 725 }
 726 unset class
 727
 728 if {[is_Windows] || [is_MacOSX]} {
 729         option add *Menu.tearOff 0
 730 }
 731
 732 if {[is_MacOSX]} {
 733         set M1B M1
 734         set M1T Cmd
 735 } else {
 736         set M1B Control
 737         set M1T Ctrl
 738 }
 739
 740 proc bind_button3 {w cmd} {
 741         bind $w <Any-Button-3> $cmd
 742         if {[is_MacOSX]} {
 743                 # Mac OS X sends Button-2 on right click through three-button mouse,
 744                 # or through trackpad right-clicking (two-finger touch + click).
 745                 bind $w <Any-Button-2> $cmd
 746                 bind $w <Control-Button-1> $cmd
 747         }
 748 }
 749
 750 proc apply_config {} {
 751         global repo_config font_descs
 752
 753         foreach option $font_descs {
 754                 set name [lindex $option 0]
 755                 set font [lindex $option 1]
 756                 if {[catch {
 757                         set need_weight 1
 758                         foreach {cn cv} $repo_config(gui.$name) {
 759                                 if {$cn eq {-weight}} {
 760                                         set need_weight 0
 761                                 }
 762                                 font configure $font $cn $cv
 763                         }
 764                         if {$need_weight} {
 765                                 font configure $font -weight normal
 766                         }
 767                         } err]} {
 768                         error_popup [strcat [mc "Invalid font specified in %s:" "gui.$name"] "\n\n$err"]
 769                 }
 770                 foreach {cn cv} [font configure $font] {
 771                         font configure ${font}bold $cn $cv
 772                         font configure ${font}italic $cn $cv
 773                 }
 774                 font configure ${font}bold -weight bold
 775                 font configure ${font}italic -slant italic
 776         }
 777
 778         global use_ttk NS
 779         set use_ttk 0
 780         set NS {}
 781         if {$repo_config(gui.usettk)} {
 782                 set use_ttk [package vsatisfies [package provide Tk] 8.5]
 783                 if {$use_ttk} {
 784                         set NS ttk
 785                         bind [winfo class .] <<ThemeChanged>> [list InitTheme]
 786                         pave_toplevel .
 787                 }
 788         }
 789 }
 790
 791 set default_config(branch.autosetupmerge) true
 792 set default_config(merge.tool) {}
 793 set default_config(mergetool.keepbackup) true
 794 set default_config(merge.diffstat) true
 795 set default_config(merge.summary) false
 796 set default_config(merge.verbosity) 2
 797 set default_config(user.name) {}
 798 set default_config(user.email) {}
 799
 800 set default_config(gui.encoding) [encoding system]
 801 set default_config(gui.matchtrackingbranch) false
 802 set default_config(gui.textconv) true
 803 set default_config(gui.pruneduringfetch) false
 804 set default_config(gui.trustmtime) false
 805 set default_config(gui.fastcopyblame) false
 806 set default_config(gui.copyblamethreshold) 40
 807 set default_config(gui.blamehistoryctx) 7
 808 set default_config(gui.diffcontext) 5
 809 set default_config(gui.commitmsgwidth) 75
 810 set default_config(gui.newbranchtemplate) {}
 811 set default_config(gui.spellingdictionary) {}
 812 set default_config(gui.fontui) [font configure font_ui]
 813 set default_config(gui.fontdiff) [font configure font_diff]
 814 # TODO: this option should be added to the git-config documentation
 815 set default_config(gui.maxfilesdisplayed) 5000
 816 set default_config(gui.usettk) 1
 817 set font_descs {
 818         {fontui   font_ui   {mc "Main Font"}}
 819         {fontdiff font_diff {mc "Diff/Console Font"}}
 820 }
 821
 822 ######################################################################
 823 ##
 824 ## find git
 825
 826 set _git  [_which git]
 827 if {$_git eq {}} {
 828         catch {wm withdraw .}
 829         tk_messageBox \
 830                 -icon error \
 831                 -type ok \
 832                 -title [mc "git-gui: fatal error"] \
 833                 -message [mc "Cannot find git in PATH."]
 834         exit 1
 835 }
 836
 837 ######################################################################
 838 ##
 839 ## version check
 840
 841 if {[catch {set _git_version [git --version]} err]} {
 842         catch {wm withdraw .}
 843         tk_messageBox \
 844                 -icon error \
 845                 -type ok \
 846                 -title [mc "git-gui: fatal error"] \
 847                 -message "Cannot determine Git version:
 848
 849 $err
 850
 851 [appname] requires Git 1.5.0 or later."
 852         exit 1
 853 }
 854 if {![regsub {^git version } $_git_version {} _git_version]} {
 855         catch {wm withdraw .}
 856         tk_messageBox \
 857                 -icon error \
 858                 -type ok \
 859                 -title [mc "git-gui: fatal error"] \
 860                 -message [strcat [mc "Cannot parse Git version string:"] "\n\n$_git_version"]
 861         exit 1
 862 }
 863
 864 set _real_git_version $_git_version
 865 regsub -- {[\-\.]dirty$} $_git_version {} _git_version
 866 regsub {\.[0-9]+\.g[0-9a-f]+$} $_git_version {} _git_version
 867 regsub {\.[a-zA-Z]+\.?[0-9]+$} $_git_version {} _git_version
 868 regsub {\.GIT$} $_git_version {} _git_version
 869 regsub {\.[a-zA-Z]+\.?[0-9]+$} $_git_version {} _git_version
 870
 871 if {![regexp {^[1-9]+(\.[0-9]+)+$} $_git_version]} {
 872         catch {wm withdraw .}
 873         if {[tk_messageBox \
 874                 -icon warning \
 875                 -type yesno \
 876                 -default no \
 877                 -title "[appname]: warning" \
 878                  -message [mc "Git version cannot be determined.
 879
 880 %s claims it is version '%s'.
 881
 882 %s requires at least Git 1.5.0 or later.
 883
 884 Assume '%s' is version 1.5.0?
 885 " $_git $_real_git_version [appname] $_real_git_version]] eq {yes}} {
 886                 set _git_version 1.5.0
 887         } else {
 888                 exit 1
 889         }
 890 }
 891 unset _real_git_version
 892
 893 proc git-version {args} {
 894         global _git_version
 895
 896         switch [llength $args] {
 897         0 {
 898                 return $_git_version
 899         }
 900
 901         2 {
 902                 set op [lindex $args 0]
 903                 set vr [lindex $args 1]
 904                 set cm [package vcompare $_git_version $vr]
 905                 return [expr $cm $op 0]
 906         }
 907
 908         4 {
 909                 set type [lindex $args 0]
 910                 set name [lindex $args 1]
 911                 set parm [lindex $args 2]
 912                 set body [lindex $args 3]
 913
 914                 if {($type ne {proc} && $type ne {method})} {
 915                         error "Invalid arguments to git-version"
 916                 }
 917                 if {[llength $body] < 2 || [lindex $body end-1] ne {default}} {
 918                         error "Last arm of $type $name must be default"
 919                 }
 920
 921                 foreach {op vr cb} [lrange $body 0 end-2] {
 922                         if {[git-version $op $vr]} {
 923                                 return [uplevel [list $type $name $parm $cb]]
 924                         }
 925                 }
 926
 927                 return [uplevel [list $type $name $parm [lindex $body end]]]
 928         }
 929
 930         default {
 931                 error "git-version >= x"
 932         }
 933
 934         }
 935 }
 936
 937 if {[git-version < 1.5]} {
 938         catch {wm withdraw .}
 939         tk_messageBox \
 940                 -icon error \
 941                 -type ok \
 942                 -title [mc "git-gui: fatal error"] \
 943                 -message "[appname] requires Git 1.5.0 or later.
 944
 945 You are using [git-version]:
 946
 947 [git --version]"
 948         exit 1
 949 }
 950
 951 ######################################################################
 952 ##
 953 ## configure our library
 954
 955 set idx [file join $oguilib tclIndex]
 956 if {[catch {set fd [open $idx r]} err]} {
 957         catch {wm withdraw .}
 958         tk_messageBox \
 959                 -icon error \
 960                 -type ok \
 961                 -title [mc "git-gui: fatal error"] \
 962                 -message $err
 963         exit 1
 964 }
 965 if {[gets $fd] eq {# Autogenerated by git-gui Makefile}} {
 966         set idx [list]
 967         while {[gets $fd n] >= 0} {
 968                 if {$n ne {} && ![string match #* $n]} {
 969                         lappend idx $n
 970                 }
 971         }
 972 } else {
 973         set idx {}
 974 }
 975 close $fd
 976
 977 if {$idx ne {}} {
 978         set loaded [list]
 979         foreach p $idx {
 980                 if {[lsearch -exact $loaded $p] >= 0} continue
 981                 source [file join $oguilib $p]
 982                 lappend loaded $p
 983         }
 984         unset loaded p
 985 } else {
 986         set auto_path [concat [list $oguilib] $auto_path]
 987 }
 988 unset -nocomplain idx fd
 989
 990 ######################################################################
 991 ##
 992 ## config file parsing
 993
 994 git-version proc _parse_config {arr_name args} {
 995         >= 1.5.3 {
 996                 upvar $arr_name arr
 997                 array unset arr
 998                 set buf {}
 999                 catch {
1000                         set fd_rc [eval \
1001                                 [list git_read config] \
1002                                 $args \
1003                                 [list --null --list]]
1004                         fconfigure $fd_rc -translation binary
1005                         set buf [read $fd_rc]
1006                         close $fd_rc
1007                 }
1008                 foreach line [split $buf "\0"] {
1009                         if {[regexp {^([^\n]+)\n(.*)$} $line line name value]} {
1010                                 if {[is_many_config $name]} {
1011                                         lappend arr($name) $value
1012                                 } else {
1013                                         set arr($name) $value
1014                                 }
1015                         }
1016                 }
1017         }
1018         default {
1019                 upvar $arr_name arr
1020                 array unset arr
1021                 catch {
1022                         set fd_rc [eval [list git_read config --list] $args]
1023                         while {[gets $fd_rc line] >= 0} {
1024                                 if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
1025                                         if {[is_many_config $name]} {
1026                                                 lappend arr($name) $value
1027                                         } else {
1028                                                 set arr($name) $value
1029                                         }
1030                                 }
1031                         }
1032                         close $fd_rc
1033                 }
1034         }
1035 }
1036
1037 proc load_config {include_global} {
1038         global repo_config global_config system_config default_config
1039
1040         if {$include_global} {
1041                 _parse_config system_config --system
1042                 _parse_config global_config --global
1043         }
1044         _parse_config repo_config
1045
1046         foreach name [array names default_config] {
1047                 if {[catch {set v $system_config($name)}]} {
1048                         set system_config($name) $default_config($name)
1049                 }
1050         }
1051         foreach name [array names system_config] {
1052                 if {[catch {set v $global_config($name)}]} {
1053                         set global_config($name) $system_config($name)
1054                 }
1055                 if {[catch {set v $repo_config($name)}]} {
1056                         set repo_config($name) $system_config($name)
1057                 }
1058         }
1059 }
1060
1061 ######################################################################
1062 ##
1063 ## feature option selection
1064
1065 if {[regexp {^git-(.+)$} [file tail $argv0] _junk subcommand]} {
1066         unset _junk
1067 } else {
1068         set subcommand gui
1069 }
1070 if {$subcommand eq {gui.sh}} {
1071         set subcommand gui
1072 }
1073 if {$subcommand eq {gui} && [llength $argv] > 0} {
1074         set subcommand [lindex $argv 0]
1075         set argv [lrange $argv 1 end]
1076 }
1077
1078 enable_option multicommit
1079 enable_option branch
1080 enable_option transport
1081 disable_option bare
1082
1083 switch -- $subcommand {
1084 browser -
1085 blame {
1086         enable_option bare
1087
1088         disable_option multicommit
1089         disable_option branch
1090         disable_option transport
1091 }
1092 citool {
1093         enable_option singlecommit
1094         enable_option retcode
1095
1096         disable_option multicommit
1097         disable_option branch
1098         disable_option transport
1099
1100         while {[llength $argv] > 0} {
1101                 set a [lindex $argv 0]
1102                 switch -- $a {
1103                 --amend {
1104                         enable_option initialamend
1105                 }
1106                 --nocommit {
1107                         enable_option nocommit
1108                         enable_option nocommitmsg
1109                 }
1110                 --commitmsg {
1111                         disable_option nocommitmsg
1112                 }
1113                 default {
1114                         break
1115                 }
1116                 }
1117
1118                 set argv [lrange $argv 1 end]
1119         }
1120 }
1121 }
1122
1123 ######################################################################
1124 ##
1125 ## execution environment
1126
1127 set have_tk85 [expr {[package vcompare $tk_version "8.5"] >= 0}]
1128
1129 # Suggest our implementation of askpass, if none is set
1130 if {![info exists env(SSH_ASKPASS)]} {
1131         set env(SSH_ASKPASS) [gitexec git-gui--askpass]
1132 }
1133
1134 ######################################################################
1135 ##
1136 ## repository setup
1137
1138 set picked 0
1139 if {[catch {
1140                 set _gitdir $env(GIT_DIR)
1141                 set _prefix {}
1142                 }]
1143         && [catch {
1144                 # beware that from the .git dir this sets _gitdir to .
1145                 # and _prefix to the empty string
1146                 set _gitdir [git rev-parse --git-dir]
1147                 set _prefix [git rev-parse --show-prefix]
1148         } err]} {
1149         load_config 1
1150         apply_config
1151         choose_repository::pick
1152         set picked 1
1153 }
1154
1155 # we expand the _gitdir when it's just a single dot (i.e. when we're being
1156 # run from the .git dir itself) lest the routines to find the worktree
1157 # get confused
1158 if {$_gitdir eq "."} {
1159         set _gitdir [pwd]
1160 }
1161
1162 if {![file isdirectory $_gitdir] && [is_Cygwin]} {
1163         catch {set _gitdir [exec cygpath --windows $_gitdir]}
1164 }
1165 if {![file isdirectory $_gitdir]} {
1166         catch {wm withdraw .}
1167         error_popup [strcat [mc "Git directory not found:"] "\n\n$_gitdir"]
1168         exit 1
1169 }
1170 # _gitdir exists, so try loading the config
1171 load_config 0
1172 apply_config
1173 # try to set work tree from environment, falling back to core.worktree
1174 if {[catch { set _gitworktree $env(GIT_WORK_TREE) }]} {
1175         set _gitworktree [get_config core.worktree]
1176         if {$_gitworktree eq ""} {
1177                 set _gitworktree [file dirname [file normalize $_gitdir]]
1178         }
1179 }
1180 if {$_prefix ne {}} {
1181         if {$_gitworktree eq {}} {
1182                 regsub -all {[^/]+/} $_prefix ../ cdup
1183         } else {
1184                 set cdup $_gitworktree
1185         }
1186         if {[catch {cd $cdup} err]} {
1187                 catch {wm withdraw .}
1188                 error_popup [strcat [mc "Cannot move to top of working directory:"] "\n\n$err"]
1189                 exit 1
1190         }
1191         set _gitworktree [pwd]
1192         unset cdup
1193 } elseif {![is_enabled bare]} {
1194         if {[is_bare]} {
1195                 catch {wm withdraw .}
1196                 error_popup [strcat [mc "Cannot use bare repository:"] "\n\n$_gitdir"]
1197                 exit 1
1198         }
1199         if {$_gitworktree eq {}} {
1200                 set _gitworktree [file dirname $_gitdir]
1201         }
1202         if {[catch {cd $_gitworktree} err]} {
1203                 catch {wm withdraw .}
1204                 error_popup [strcat [mc "No working directory"] " $_gitworktree:\n\n$err"]
1205                 exit 1
1206         }
1207         set _gitworktree [pwd]
1208 }
1209 set _reponame [file split [file normalize $_gitdir]]
1210 if {[lindex $_reponame end] eq {.git}} {
1211         set _reponame [lindex $_reponame end-1]
1212 } else {
1213         set _reponame [lindex $_reponame end]
1214 }
1215
1216 set env(GIT_DIR) $_gitdir
1217 set env(GIT_WORK_TREE) $_gitworktree
1218
1219 ######################################################################
1220 ##
1221 ## global init
1222
1223 set current_diff_path {}
1224 set current_diff_side {}
1225 set diff_actions [list]
1226
1227 set HEAD {}
1228 set PARENT {}
1229 set MERGE_HEAD [list]
1230 set commit_type {}
1231 set empty_tree {}
1232 set current_branch {}
1233 set is_detached 0
1234 set current_diff_path {}
1235 set is_3way_diff 0
1236 set is_submodule_diff 0
1237 set is_conflict_diff 0
1238 set selected_commit_type new
1239 set diff_empty_count 0
1240
1241 set nullid "0000000000000000000000000000000000000000"
1242 set nullid2 "0000000000000000000000000000000000000001"
1243
1244 ######################################################################
1245 ##
1246 ## task management
1247
1248 set rescan_active 0
1249 set diff_active 0
1250 set last_clicked {}
1251
1252 set disable_on_lock [list]
1253 set index_lock_type none
1254
1255 proc lock_index {type} {
1256         global index_lock_type disable_on_lock
1257
1258         if {$index_lock_type eq {none}} {
1259                 set index_lock_type $type
1260                 foreach w $disable_on_lock {
1261                         uplevel #0 $w disabled
1262                 }
1263                 return 1
1264         } elseif {$index_lock_type eq "begin-$type"} {
1265                 set index_lock_type $type
1266                 return 1
1267         }
1268         return 0
1269 }
1270
1271 proc unlock_index {} {
1272         global index_lock_type disable_on_lock
1273
1274         set index_lock_type none
1275         foreach w $disable_on_lock {
1276                 uplevel #0 $w normal
1277         }
1278 }
1279
1280 ######################################################################
1281 ##
1282 ## status
1283
1284 proc repository_state {ctvar hdvar mhvar} {
1285         global current_branch
1286         upvar $ctvar ct $hdvar hd $mhvar mh
1287
1288         set mh [list]
1289
1290         load_current_branch
1291         if {[catch {set hd [git rev-parse --verify HEAD]}]} {
1292                 set hd {}
1293                 set ct initial
1294                 return
1295         }
1296
1297         set merge_head [gitdir MERGE_HEAD]
1298         if {[file exists $merge_head]} {
1299                 set ct merge
1300                 set fd_mh [open $merge_head r]
1301                 while {[gets $fd_mh line] >= 0} {
1302                         lappend mh $line
1303                 }
1304                 close $fd_mh
1305                 return
1306         }
1307
1308         set ct normal
1309 }
1310
1311 proc PARENT {} {
1312         global PARENT empty_tree
1313
1314         set p [lindex $PARENT 0]
1315         if {$p ne {}} {
1316                 return $p
1317         }
1318         if {$empty_tree eq {}} {
1319                 set empty_tree [git mktree << {}]
1320         }
1321         return $empty_tree
1322 }
1323
1324 proc force_amend {} {
1325         global selected_commit_type
1326         global HEAD PARENT MERGE_HEAD commit_type
1327
1328         repository_state newType newHEAD newMERGE_HEAD
1329         set HEAD $newHEAD
1330         set PARENT $newHEAD
1331         set MERGE_HEAD $newMERGE_HEAD
1332         set commit_type $newType
1333
1334         set selected_commit_type amend
1335         do_select_commit_type
1336 }
1337
1338 proc rescan {after {honor_trustmtime 1}} {
1339         global HEAD PARENT MERGE_HEAD commit_type
1340         global ui_index ui_workdir ui_comm
1341         global rescan_active file_states
1342         global repo_config
1343
1344         if {$rescan_active > 0 || ![lock_index read]} return
1345
1346         repository_state newType newHEAD newMERGE_HEAD
1347         if {[string match amend* $commit_type]
1348                 && $newType eq {normal}
1349                 && $newHEAD eq $HEAD} {
1350         } else {
1351                 set HEAD $newHEAD
1352                 set PARENT $newHEAD
1353                 set MERGE_HEAD $newMERGE_HEAD
1354                 set commit_type $newType
1355         }
1356
1357         array unset file_states
1358
1359         if {!$::GITGUI_BCK_exists &&
1360                 (![$ui_comm edit modified]
1361                 || [string trim [$ui_comm get 0.0 end]] eq {})} {
1362                 if {[string match amend* $commit_type]} {
1363                 } elseif {[load_message GITGUI_MSG]} {
1364                 } elseif {[run_prepare_commit_msg_hook]} {
1365                 } elseif {[load_message MERGE_MSG]} {
1366                 } elseif {[load_message SQUASH_MSG]} {
1367                 }
1368                 $ui_comm edit reset
1369                 $ui_comm edit modified false
1370         }
1371
1372         if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
1373                 rescan_stage2 {} $after
1374         } else {
1375                 set rescan_active 1
1376                 ui_status [mc "Refreshing file status..."]
1377                 set fd_rf [git_read update-index \
1378                         -q \
1379                         --unmerged \
1380                         --ignore-missing \
1381                         --refresh \
1382                         ]
1383                 fconfigure $fd_rf -blocking 0 -translation binary
1384                 fileevent $fd_rf readable \
1385                         [list rescan_stage2 $fd_rf $after]
1386         }
1387 }
1388
1389 if {[is_Cygwin]} {
1390         set is_git_info_exclude {}
1391         proc have_info_exclude {} {
1392                 global is_git_info_exclude
1393
1394                 if {$is_git_info_exclude eq {}} {
1395                         if {[catch {exec test -f [gitdir info exclude]}]} {
1396                                 set is_git_info_exclude 0
1397                         } else {
1398                                 set is_git_info_exclude 1
1399                         }
1400                 }
1401                 return $is_git_info_exclude
1402         }
1403 } else {
1404         proc have_info_exclude {} {
1405                 return [file readable [gitdir info exclude]]
1406         }
1407 }
1408
1409 proc rescan_stage2 {fd after} {
1410         global rescan_active buf_rdi buf_rdf buf_rlo
1411
1412         if {$fd ne {}} {
1413                 read $fd
1414                 if {![eof $fd]} return
1415                 close $fd
1416         }
1417
1418         set ls_others [list --exclude-per-directory=.gitignore]
1419         if {[have_info_exclude]} {
1420                 lappend ls_others "--exclude-from=[gitdir info exclude]"
1421         }
1422         set user_exclude [get_config core.excludesfile]
1423         if {$user_exclude ne {} && [file readable $user_exclude]} {
1424                 lappend ls_others "--exclude-from=$user_exclude"
1425         }
1426
1427         set buf_rdi {}
1428         set buf_rdf {}
1429         set buf_rlo {}
1430
1431         set rescan_active 3
1432         ui_status [mc "Scanning for modified files ..."]
1433         set fd_di [git_read diff-index --cached -z [PARENT]]
1434         set fd_df [git_read diff-files -z]
1435         set fd_lo [eval git_read ls-files --others -z $ls_others]
1436
1437         fconfigure $fd_di -blocking 0 -translation binary -encoding binary
1438         fconfigure $fd_df -blocking 0 -translation binary -encoding binary
1439         fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
1440         fileevent $fd_di readable [list read_diff_index $fd_di $after]
1441         fileevent $fd_df readable [list read_diff_files $fd_df $after]
1442         fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
1443 }
1444
1445 proc load_message {file} {
1446         global ui_comm
1447
1448         set f [gitdir $file]
1449         if {[file isfile $f]} {
1450                 if {[catch {set fd [open $f r]}]} {
1451                         return 0
1452                 }
1453                 fconfigure $fd -eofchar {}
1454                 set content [string trim [read $fd]]
1455                 close $fd
1456                 regsub -all -line {[ \r\t]+$} $content {} content
1457                 $ui_comm delete 0.0 end
1458                 $ui_comm insert end $content
1459                 return 1
1460         }
1461         return 0
1462 }
1463
1464 proc run_prepare_commit_msg_hook {} {
1465         global pch_error
1466
1467         # prepare-commit-msg requires PREPARE_COMMIT_MSG exist.  From git-gui
1468         # it will be .git/MERGE_MSG (merge), .git/SQUASH_MSG (squash), or an
1469         # empty file but existant file.
1470
1471         set fd_pcm [open [gitdir PREPARE_COMMIT_MSG] a]
1472
1473         if {[file isfile [gitdir MERGE_MSG]]} {
1474                 set pcm_source "merge"
1475                 set fd_mm [open [gitdir MERGE_MSG] r]
1476                 puts -nonewline $fd_pcm [read $fd_mm]
1477                 close $fd_mm
1478         } elseif {[file isfile [gitdir SQUASH_MSG]]} {
1479                 set pcm_source "squash"
1480                 set fd_sm [open [gitdir SQUASH_MSG] r]
1481                 puts -nonewline $fd_pcm [read $fd_sm]
1482                 close $fd_sm
1483         } else {
1484                 set pcm_source ""
1485         }
1486
1487         close $fd_pcm
1488
1489         set fd_ph [githook_read prepare-commit-msg \
1490                         [gitdir PREPARE_COMMIT_MSG] $pcm_source]
1491         if {$fd_ph eq {}} {
1492                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1493                 return 0;
1494         }
1495
1496         ui_status [mc "Calling prepare-commit-msg hook..."]
1497         set pch_error {}
1498
1499         fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
1500         fileevent $fd_ph readable \
1501                 [list prepare_commit_msg_hook_wait $fd_ph]
1502
1503         return 1;
1504 }
1505
1506 proc prepare_commit_msg_hook_wait {fd_ph} {
1507         global pch_error
1508
1509         append pch_error [read $fd_ph]
1510         fconfigure $fd_ph -blocking 1
1511         if {[eof $fd_ph]} {
1512                 if {[catch {close $fd_ph}]} {
1513                         ui_status [mc "Commit declined by prepare-commit-msg hook."]
1514                         hook_failed_popup prepare-commit-msg $pch_error
1515                         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1516                         exit 1
1517                 } else {
1518                         load_message PREPARE_COMMIT_MSG
1519                 }
1520                 set pch_error {}
1521                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1522                 return
1523         }
1524         fconfigure $fd_ph -blocking 0
1525         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1526 }
1527
1528 proc read_diff_index {fd after} {
1529         global buf_rdi
1530
1531         append buf_rdi [read $fd]
1532         set c 0
1533         set n [string length $buf_rdi]
1534         while {$c < $n} {
1535                 set z1 [string first "\0" $buf_rdi $c]
1536                 if {$z1 == -1} break
1537                 incr z1
1538                 set z2 [string first "\0" $buf_rdi $z1]
1539                 if {$z2 == -1} break
1540
1541                 incr c
1542                 set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
1543                 set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
1544                 merge_state \
1545                         [encoding convertfrom $p] \
1546                         [lindex $i 4]? \
1547                         [list [lindex $i 0] [lindex $i 2]] \
1548                         [list]
1549                 set c $z2
1550                 incr c
1551         }
1552         if {$c < $n} {
1553                 set buf_rdi [string range $buf_rdi $c end]
1554         } else {
1555                 set buf_rdi {}
1556         }
1557
1558         rescan_done $fd buf_rdi $after
1559 }
1560
1561 proc read_diff_files {fd after} {
1562         global buf_rdf
1563
1564         append buf_rdf [read $fd]
1565         set c 0
1566         set n [string length $buf_rdf]
1567         while {$c < $n} {
1568                 set z1 [string first "\0" $buf_rdf $c]
1569                 if {$z1 == -1} break
1570                 incr z1
1571                 set z2 [string first "\0" $buf_rdf $z1]
1572                 if {$z2 == -1} break
1573
1574                 incr c
1575                 set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
1576                 set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
1577                 merge_state \
1578                         [encoding convertfrom $p] \
1579                         ?[lindex $i 4] \
1580                         [list] \
1581                         [list [lindex $i 0] [lindex $i 2]]
1582                 set c $z2
1583                 incr c
1584         }
1585         if {$c < $n} {
1586                 set buf_rdf [string range $buf_rdf $c end]
1587         } else {
1588                 set buf_rdf {}
1589         }
1590
1591         rescan_done $fd buf_rdf $after
1592 }
1593
1594 proc read_ls_others {fd after} {
1595         global buf_rlo
1596
1597         append buf_rlo [read $fd]
1598         set pck [split $buf_rlo "\0"]
1599         set buf_rlo [lindex $pck end]
1600         foreach p [lrange $pck 0 end-1] {
1601                 set p [encoding convertfrom $p]
1602                 if {[string index $p end] eq {/}} {
1603                         set p [string range $p 0 end-1]
1604                 }
1605                 merge_state $p ?O
1606         }
1607         rescan_done $fd buf_rlo $after
1608 }
1609
1610 proc rescan_done {fd buf after} {
1611         global rescan_active current_diff_path
1612         global file_states repo_config
1613         upvar $buf to_clear
1614
1615         if {![eof $fd]} return
1616         set to_clear {}
1617         close $fd
1618         if {[incr rescan_active -1] > 0} return
1619
1620         prune_selection
1621         unlock_index
1622         display_all_files
1623         if {$current_diff_path ne {}} { reshow_diff $after }
1624         if {$current_diff_path eq {}} { select_first_diff $after }
1625 }
1626
1627 proc prune_selection {} {
1628         global file_states selected_paths
1629
1630         foreach path [array names selected_paths] {
1631                 if {[catch {set still_here $file_states($path)}]} {
1632                         unset selected_paths($path)
1633                 }
1634         }
1635 }
1636
1637 ######################################################################
1638 ##
1639 ## ui helpers
1640
1641 proc mapicon {w state path} {
1642         global all_icons
1643
1644         if {[catch {set r $all_icons($state$w)}]} {
1645                 puts "error: no icon for $w state={$state} $path"
1646                 return file_plain
1647         }
1648         return $r
1649 }
1650
1651 proc mapdesc {state path} {
1652         global all_descs
1653
1654         if {[catch {set r $all_descs($state)}]} {
1655                 puts "error: no desc for state={$state} $path"
1656                 return $state
1657         }
1658         return $r
1659 }
1660
1661 proc ui_status {msg} {
1662         global main_status
1663         if {[info exists main_status]} {
1664                 $main_status show $msg
1665         }
1666 }
1667
1668 proc ui_ready {{test {}}} {
1669         global main_status
1670         if {[info exists main_status]} {
1671                 $main_status show [mc "Ready."] $test
1672         }
1673 }
1674
1675 proc escape_path {path} {
1676         regsub -all {\\} $path "\\\\" path
1677         regsub -all "\n" $path "\\n" path
1678         return $path
1679 }
1680
1681 proc short_path {path} {
1682         return [escape_path [lindex [file split $path] end]]
1683 }
1684
1685 set next_icon_id 0
1686 set null_sha1 [string repeat 0 40]
1687
1688 proc merge_state {path new_state {head_info {}} {index_info {}}} {
1689         global file_states next_icon_id null_sha1
1690
1691         set s0 [string index $new_state 0]
1692         set s1 [string index $new_state 1]
1693
1694         if {[catch {set info $file_states($path)}]} {
1695                 set state __
1696                 set icon n[incr next_icon_id]
1697         } else {
1698                 set state [lindex $info 0]
1699                 set icon [lindex $info 1]
1700                 if {$head_info eq {}}  {set head_info  [lindex $info 2]}
1701                 if {$index_info eq {}} {set index_info [lindex $info 3]}
1702         }
1703
1704         if     {$s0 eq {?}} {set s0 [string index $state 0]} \
1705         elseif {$s0 eq {_}} {set s0 _}
1706
1707         if     {$s1 eq {?}} {set s1 [string index $state 1]} \
1708         elseif {$s1 eq {_}} {set s1 _}
1709
1710         if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
1711                 set head_info [list 0 $null_sha1]
1712         } elseif {$s0 ne {_} && [string index $state 0] eq {_}
1713                 && $head_info eq {}} {
1714                 set head_info $index_info
1715         } elseif {$s0 eq {_} && [string index $state 0] ne {_}} {
1716                 set index_info $head_info
1717                 set head_info {}
1718         }
1719
1720         set file_states($path) [list $s0$s1 $icon \
1721                 $head_info $index_info \
1722                 ]
1723         return $state
1724 }
1725
1726 proc display_file_helper {w path icon_name old_m new_m} {
1727         global file_lists
1728
1729         if {$new_m eq {_}} {
1730                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1731                 if {$lno >= 0} {
1732                         set file_lists($w) [lreplace $file_lists($w) $lno $lno]
1733                         incr lno
1734                         $w conf -state normal
1735                         $w delete $lno.0 [expr {$lno + 1}].0
1736                         $w conf -state disabled
1737                 }
1738         } elseif {$old_m eq {_} && $new_m ne {_}} {
1739                 lappend file_lists($w) $path
1740                 set file_lists($w) [lsort -unique $file_lists($w)]
1741                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1742                 incr lno
1743                 $w conf -state normal
1744                 $w image create $lno.0 \
1745                         -align center -padx 5 -pady 1 \
1746                         -name $icon_name \
1747                         -image [mapicon $w $new_m $path]
1748                 $w insert $lno.1 "[escape_path $path]\n"
1749                 $w conf -state disabled
1750         } elseif {$old_m ne $new_m} {
1751                 $w conf -state normal
1752                 $w image conf $icon_name -image [mapicon $w $new_m $path]
1753                 $w conf -state disabled
1754         }
1755 }
1756
1757 proc display_file {path state} {
1758         global file_states selected_paths
1759         global ui_index ui_workdir
1760
1761         set old_m [merge_state $path $state]
1762         set s $file_states($path)
1763         set new_m [lindex $s 0]
1764         set icon_name [lindex $s 1]
1765
1766         set o [string index $old_m 0]
1767         set n [string index $new_m 0]
1768         if {$o eq {U}} {
1769                 set o _
1770         }
1771         if {$n eq {U}} {
1772                 set n _
1773         }
1774         display_file_helper     $ui_index $path $icon_name $o $n
1775
1776         if {[string index $old_m 0] eq {U}} {
1777                 set o U
1778         } else {
1779                 set o [string index $old_m 1]
1780         }
1781         if {[string index $new_m 0] eq {U}} {
1782                 set n U
1783         } else {
1784                 set n [string index $new_m 1]
1785         }
1786         display_file_helper     $ui_workdir $path $icon_name $o $n
1787
1788         if {$new_m eq {__}} {
1789                 unset file_states($path)
1790                 catch {unset selected_paths($path)}
1791         }
1792 }
1793
1794 proc display_all_files_helper {w path icon_name m} {
1795         global file_lists
1796
1797         lappend file_lists($w) $path
1798         set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
1799         $w image create end \
1800                 -align center -padx 5 -pady 1 \
1801                 -name $icon_name \
1802                 -image [mapicon $w $m $path]
1803         $w insert end "[escape_path $path]\n"
1804 }
1805
1806 set files_warning 0
1807 proc display_all_files {} {
1808         global ui_index ui_workdir
1809         global file_states file_lists
1810         global last_clicked
1811         global files_warning
1812
1813         $ui_index conf -state normal
1814         $ui_workdir conf -state normal
1815
1816         $ui_index delete 0.0 end
1817         $ui_workdir delete 0.0 end
1818         set last_clicked {}
1819
1820         set file_lists($ui_index) [list]
1821         set file_lists($ui_workdir) [list]
1822
1823         set to_display [lsort [array names file_states]]
1824         set display_limit [get_config gui.maxfilesdisplayed]
1825         if {[llength $to_display] > $display_limit} {
1826                 if {!$files_warning} {
1827                         # do not repeatedly warn:
1828                         set files_warning 1
1829                         info_popup [mc "Displaying only %s of %s files." \
1830                                 $display_limit [llength $to_display]]
1831                 }
1832                 set to_display [lrange $to_display 0 [expr {$display_limit-1}]]
1833         }
1834         foreach path $to_display {
1835                 set s $file_states($path)
1836                 set m [lindex $s 0]
1837                 set icon_name [lindex $s 1]
1838
1839                 set s [string index $m 0]
1840                 if {$s ne {U} && $s ne {_}} {
1841                         display_all_files_helper $ui_index $path \
1842                                 $icon_name $s
1843                 }
1844
1845                 if {[string index $m 0] eq {U}} {
1846                         set s U
1847                 } else {
1848                         set s [string index $m 1]
1849                 }
1850                 if {$s ne {_}} {
1851                         display_all_files_helper $ui_workdir $path \
1852                                 $icon_name $s
1853                 }
1854         }
1855
1856         $ui_index conf -state disabled
1857         $ui_workdir conf -state disabled
1858 }
1859
1860 ######################################################################
1861 ##
1862 ## icons
1863
1864 set filemask {
1865 #define mask_width 14
1866 #define mask_height 15
1867 static unsigned char mask_bits[] = {
1868    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1869    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1870    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
1871 }
1872
1873 image create bitmap file_plain -background white -foreground black -data {
1874 #define plain_width 14
1875 #define plain_height 15
1876 static unsigned char plain_bits[] = {
1877    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1878    0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
1879    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1880 } -maskdata $filemask
1881
1882 image create bitmap file_mod -background white -foreground blue -data {
1883 #define mod_width 14
1884 #define mod_height 15
1885 static unsigned char mod_bits[] = {
1886    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
1887    0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1888    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
1889 } -maskdata $filemask
1890
1891 image create bitmap file_fulltick -background white -foreground "#007000" -data {
1892 #define file_fulltick_width 14
1893 #define file_fulltick_height 15
1894 static unsigned char file_fulltick_bits[] = {
1895    0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
1896    0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
1897    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1898 } -maskdata $filemask
1899
1900 image create bitmap file_question -background white -foreground black -data {
1901 #define file_question_width 14
1902 #define file_question_height 15
1903 static unsigned char file_question_bits[] = {
1904    0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
1905    0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
1906    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1907 } -maskdata $filemask
1908
1909 image create bitmap file_removed -background white -foreground red -data {
1910 #define file_removed_width 14
1911 #define file_removed_height 15
1912 static unsigned char file_removed_bits[] = {
1913    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1914    0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
1915    0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
1916 } -maskdata $filemask
1917
1918 image create bitmap file_merge -background white -foreground blue -data {
1919 #define file_merge_width 14
1920 #define file_merge_height 15
1921 static unsigned char file_merge_bits[] = {
1922    0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
1923    0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1924    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
1925 } -maskdata $filemask
1926
1927 image create bitmap file_statechange -background white -foreground green -data {
1928 #define file_merge_width 14
1929 #define file_merge_height 15
1930 static unsigned char file_statechange_bits[] = {
1931    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x62, 0x10,
1932    0x62, 0x10, 0xba, 0x11, 0xba, 0x11, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10,
1933    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1934 } -maskdata $filemask
1935
1936 set ui_index .vpane.files.index.list
1937 set ui_workdir .vpane.files.workdir.list
1938
1939 set all_icons(_$ui_index)   file_plain
1940 set all_icons(A$ui_index)   file_plain
1941 set all_icons(M$ui_index)   file_fulltick
1942 set all_icons(D$ui_index)   file_removed
1943 set all_icons(U$ui_index)   file_merge
1944 set all_icons(T$ui_index)   file_statechange
1945
1946 set all_icons(_$ui_workdir) file_plain
1947 set all_icons(M$ui_workdir) file_mod
1948 set all_icons(D$ui_workdir) file_question
1949 set all_icons(U$ui_workdir) file_merge
1950 set all_icons(O$ui_workdir) file_plain
1951 set all_icons(T$ui_workdir) file_statechange
1952
1953 set max_status_desc 0
1954 foreach i {
1955                 {__ {mc "Unmodified"}}
1956
1957                 {_M {mc "Modified, not staged"}}
1958                 {M_ {mc "Staged for commit"}}
1959                 {MM {mc "Portions staged for commit"}}
1960                 {MD {mc "Staged for commit, missing"}}
1961
1962                 {_T {mc "File type changed, not staged"}}
1963                 {T_ {mc "File type changed, staged"}}
1964
1965                 {_O {mc "Untracked, not staged"}}
1966                 {A_ {mc "Staged for commit"}}
1967                 {AM {mc "Portions staged for commit"}}
1968                 {AD {mc "Staged for commit, missing"}}
1969
1970                 {_D {mc "Missing"}}
1971                 {D_ {mc "Staged for removal"}}
1972                 {DO {mc "Staged for removal, still present"}}
1973
1974                 {_U {mc "Requires merge resolution"}}
1975                 {U_ {mc "Requires merge resolution"}}
1976                 {UU {mc "Requires merge resolution"}}
1977                 {UM {mc "Requires merge resolution"}}
1978                 {UD {mc "Requires merge resolution"}}
1979                 {UT {mc "Requires merge resolution"}}
1980         } {
1981         set text [eval [lindex $i 1]]
1982         if {$max_status_desc < [string length $text]} {
1983                 set max_status_desc [string length $text]
1984         }
1985         set all_descs([lindex $i 0]) $text
1986 }
1987 unset i
1988
1989 ######################################################################
1990 ##
1991 ## util
1992
1993 proc scrollbar2many {list mode args} {
1994         foreach w $list {eval $w $mode $args}
1995 }
1996
1997 proc many2scrollbar {list mode sb top bottom} {
1998         $sb set $top $bottom
1999         foreach w $list {$w $mode moveto $top}
2000 }
2001
2002 proc incr_font_size {font {amt 1}} {
2003         set sz [font configure $font -size]
2004         incr sz $amt
2005         font configure $font -size $sz
2006         font configure ${font}bold -size $sz
2007         font configure ${font}italic -size $sz
2008 }
2009
2010 ######################################################################
2011 ##
2012 ## ui commands
2013
2014 set starting_gitk_msg [mc "Starting gitk... please wait..."]
2015
2016 proc do_gitk {revs {is_submodule false}} {
2017         global current_diff_path file_states current_diff_side ui_index
2018         global _gitdir _gitworktree
2019
2020         # -- Always start gitk through whatever we were loaded with.  This
2021         #    lets us bypass using shell process on Windows systems.
2022         #
2023         set exe [_which gitk -script]
2024         set cmd [list [info nameofexecutable] $exe]
2025         if {$exe eq {}} {
2026                 error_popup [mc "Couldn't find gitk in PATH"]
2027         } else {
2028                 global env
2029
2030                 set pwd [pwd]
2031
2032                 if {!$is_submodule} {
2033                         if {![is_bare]} {
2034                                 cd $_gitworktree
2035                         }
2036                 } else {
2037                         cd $current_diff_path
2038                         if {$revs eq {--}} {
2039                                 set s $file_states($current_diff_path)
2040                                 set old_sha1 {}
2041                                 set new_sha1 {}
2042                                 switch -glob -- [lindex $s 0] {
2043                                 M_ { set old_sha1 [lindex [lindex $s 2] 1] }
2044                                 _M { set old_sha1 [lindex [lindex $s 3] 1] }
2045                                 MM {
2046                                         if {$current_diff_side eq $ui_index} {
2047                                                 set old_sha1 [lindex [lindex $s 2] 1]
2048                                                 set new_sha1 [lindex [lindex $s 3] 1]
2049                                         } else {
2050                                                 set old_sha1 [lindex [lindex $s 3] 1]
2051                                         }
2052                                 }
2053                                 }
2054                                 set revs $old_sha1...$new_sha1
2055                         }
2056                         # GIT_DIR and GIT_WORK_TREE for the submodule are not the ones
2057                         # we've been using for the main repository, so unset them.
2058                         # TODO we could make life easier (start up faster?) for gitk
2059                         # by setting these to the appropriate values to allow gitk
2060                         # to skip the heuristics to find their proper value
2061                         unset env(GIT_DIR)
2062                         unset env(GIT_WORK_TREE)
2063                 }
2064                 eval exec $cmd $revs "--" "--" &
2065
2066                 set env(GIT_DIR) $_gitdir
2067                 set env(GIT_WORK_TREE) $_gitworktree
2068                 cd $pwd
2069
2070                 ui_status $::starting_gitk_msg
2071                 after 10000 {
2072                         ui_ready $starting_gitk_msg
2073                 }
2074         }
2075 }
2076
2077 proc do_git_gui {} {
2078         global current_diff_path
2079
2080         # -- Always start git gui through whatever we were loaded with.  This
2081         #    lets us bypass using shell process on Windows systems.
2082         #
2083         set exe [list [_which git]]
2084         if {$exe eq {}} {
2085                 error_popup [mc "Couldn't find git gui in PATH"]
2086         } else {
2087                 global env
2088                 global _gitdir _gitworktree
2089
2090                 # see note in do_gitk about unsetting these vars when
2091                 # running tools in a submodule
2092                 unset env(GIT_DIR)
2093                 unset env(GIT_WORK_TREE)
2094
2095                 set pwd [pwd]
2096                 cd $current_diff_path
2097
2098                 eval exec $exe gui &
2099
2100                 set env(GIT_DIR) $_gitdir
2101                 set env(GIT_WORK_TREE) $_gitworktree
2102                 cd $pwd
2103
2104                 ui_status $::starting_gitk_msg
2105                 after 10000 {
2106                         ui_ready $starting_gitk_msg
2107                 }
2108         }
2109 }
2110
2111 proc do_explore {} {
2112         global _gitworktree
2113         set explorer {}
2114         if {[is_Cygwin] || [is_Windows]} {
2115                 set explorer "explorer.exe"
2116         } elseif {[is_MacOSX]} {
2117                 set explorer "open"
2118         } else {
2119                 # freedesktop.org-conforming system is our best shot
2120                 set explorer "xdg-open"
2121         }
2122         eval exec $explorer [list [file nativename $_gitworktree]] &
2123 }
2124
2125 set is_quitting 0
2126 set ret_code    1
2127
2128 proc terminate_me {win} {
2129         global ret_code
2130         if {$win ne {.}} return
2131         exit $ret_code
2132 }
2133
2134 proc do_quit {{rc {1}}} {
2135         global ui_comm is_quitting repo_config commit_type
2136         global GITGUI_BCK_exists GITGUI_BCK_i
2137         global ui_comm_spell
2138         global ret_code use_ttk
2139
2140         if {$is_quitting} return
2141         set is_quitting 1
2142
2143         if {[winfo exists $ui_comm]} {
2144                 # -- Stash our current commit buffer.
2145                 #
2146                 set save [gitdir GITGUI_MSG]
2147                 if {$GITGUI_BCK_exists && ![$ui_comm edit modified]} {
2148                         file rename -force [gitdir GITGUI_BCK] $save
2149                         set GITGUI_BCK_exists 0
2150                 } else {
2151                         set msg [string trim [$ui_comm get 0.0 end]]
2152                         regsub -all -line {[ \r\t]+$} $msg {} msg
2153                         if {(![string match amend* $commit_type]
2154                                 || [$ui_comm edit modified])
2155                                 && $msg ne {}} {
2156                                 catch {
2157                                         set fd [open $save w]
2158                                         puts -nonewline $fd $msg
2159                                         close $fd
2160                                 }
2161                         } else {
2162                                 catch {file delete $save}
2163                         }
2164                 }
2165
2166                 # -- Cancel our spellchecker if its running.
2167                 #
2168                 if {[info exists ui_comm_spell]} {
2169                         $ui_comm_spell stop
2170                 }
2171
2172                 # -- Remove our editor backup, its not needed.
2173                 #
2174                 after cancel $GITGUI_BCK_i
2175                 if {$GITGUI_BCK_exists} {
2176                         catch {file delete [gitdir GITGUI_BCK]}
2177                 }
2178
2179                 # -- Stash our current window geometry into this repository.
2180                 #
2181                 set cfg_wmstate [wm state .]
2182                 if {[catch {set rc_wmstate $repo_config(gui.wmstate)}]} {
2183                         set rc_wmstate {}
2184                 }
2185                 if {$cfg_wmstate ne $rc_wmstate} {
2186                         catch {git config gui.wmstate $cfg_wmstate}
2187                 }
2188                 if {$cfg_wmstate eq {zoomed}} {
2189                         # on Windows wm geometry will lie about window
2190                         # position (but not size) when window is zoomed
2191                         # restore the window before querying wm geometry
2192                         wm state . normal
2193                 }
2194                 set cfg_geometry [list]
2195                 lappend cfg_geometry [wm geometry .]
2196                 if {$use_ttk} {
2197                         lappend cfg_geometry [.vpane sashpos 0]
2198                         lappend cfg_geometry [.vpane.files sashpos 0]
2199                 } else {
2200                         lappend cfg_geometry [lindex [.vpane sash coord 0] 0]
2201                         lappend cfg_geometry [lindex [.vpane.files sash coord 0] 1]
2202                 }
2203                 if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
2204                         set rc_geometry {}
2205                 }
2206                 if {$cfg_geometry ne $rc_geometry} {
2207                         catch {git config gui.geometry $cfg_geometry}
2208                 }
2209         }
2210
2211         set ret_code $rc
2212
2213         # Briefly enable send again, working around Tk bug
2214         # http://sourceforge.net/tracker/?func=detail&atid=112997&aid=1821174&group_id=12997
2215         tk appname [appname]
2216
2217         destroy .
2218 }
2219
2220 proc do_rescan {} {
2221         rescan ui_ready
2222 }
2223
2224 proc ui_do_rescan {} {
2225         rescan {force_first_diff ui_ready}
2226 }
2227
2228 proc do_commit {} {
2229         commit_tree
2230 }
2231
2232 proc next_diff {{after {}}} {
2233         global next_diff_p next_diff_w next_diff_i
2234         show_diff $next_diff_p $next_diff_w {} {} $after
2235 }
2236
2237 proc find_anchor_pos {lst name} {
2238         set lid [lsearch -sorted -exact $lst $name]
2239
2240         if {$lid == -1} {
2241                 set lid 0
2242                 foreach lname $lst {
2243                         if {$lname >= $name} break
2244                         incr lid
2245                 }
2246         }
2247
2248         return $lid
2249 }
2250
2251 proc find_file_from {flist idx delta path mmask} {
2252         global file_states
2253
2254         set len [llength $flist]
2255         while {$idx >= 0 && $idx < $len} {
2256                 set name [lindex $flist $idx]
2257
2258                 if {$name ne $path && [info exists file_states($name)]} {
2259                         set state [lindex $file_states($name) 0]
2260
2261                         if {$mmask eq {} || [regexp $mmask $state]} {
2262                                 return $idx
2263                         }
2264                 }
2265
2266                 incr idx $delta
2267         }
2268
2269         return {}
2270 }
2271
2272 proc find_next_diff {w path {lno {}} {mmask {}}} {
2273         global next_diff_p next_diff_w next_diff_i
2274         global file_lists ui_index ui_workdir
2275
2276         set flist $file_lists($w)
2277         if {$lno eq {}} {
2278                 set lno [find_anchor_pos $flist $path]
2279         } else {
2280                 incr lno -1
2281         }
2282
2283         if {$mmask ne {} && ![regexp {(^\^)|(\$$)} $mmask]} {
2284                 if {$w eq $ui_index} {
2285                         set mmask "^$mmask"
2286                 } else {
2287                         set mmask "$mmask\$"
2288                 }
2289         }
2290
2291         set idx [find_file_from $flist $lno 1 $path $mmask]
2292         if {$idx eq {}} {
2293                 incr lno -1
2294                 set idx [find_file_from $flist $lno -1 $path $mmask]
2295         }
2296
2297         if {$idx ne {}} {
2298                 set next_diff_w $w
2299                 set next_diff_p [lindex $flist $idx]
2300                 set next_diff_i [expr {$idx+1}]
2301                 return 1
2302         } else {
2303                 return 0
2304         }
2305 }
2306
2307 proc next_diff_after_action {w path {lno {}} {mmask {}}} {
2308         global current_diff_path
2309
2310         if {$path ne $current_diff_path} {
2311                 return {}
2312         } elseif {[find_next_diff $w $path $lno $mmask]} {
2313                 return {next_diff;}
2314         } else {
2315                 return {reshow_diff;}
2316         }
2317 }
2318
2319 proc select_first_diff {after} {
2320         global ui_workdir
2321
2322         if {[find_next_diff $ui_workdir {} 1 {^_?U}] ||
2323             [find_next_diff $ui_workdir {} 1 {[^O]$}]} {
2324                 next_diff $after
2325         } else {
2326                 uplevel #0 $after
2327         }
2328 }
2329
2330 proc force_first_diff {after} {
2331         global ui_workdir current_diff_path file_states
2332
2333         if {[info exists file_states($current_diff_path)]} {
2334                 set state [lindex $file_states($current_diff_path) 0]
2335         } else {
2336                 set state {OO}
2337         }
2338
2339         set reselect 0
2340         if {[string first {U} $state] >= 0} {
2341                 # Already a conflict, do nothing
2342         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {^_?U}]} {
2343                 set reselect 1
2344         } elseif {[string index $state 1] ne {O}} {
2345                 # Already a diff & no conflicts, do nothing
2346         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {[^O]$}]} {
2347                 set reselect 1
2348         }
2349
2350         if {$reselect} {
2351                 next_diff $after
2352         } else {
2353                 uplevel #0 $after
2354         }
2355 }
2356
2357 proc toggle_or_diff {w x y} {
2358         global file_states file_lists current_diff_path ui_index ui_workdir
2359         global last_clicked selected_paths
2360
2361         set pos [split [$w index @$x,$y] .]
2362         set lno [lindex $pos 0]
2363         set col [lindex $pos 1]
2364         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2365         if {$path eq {}} {
2366                 set last_clicked {}
2367                 return
2368         }
2369
2370         set last_clicked [list $w $lno]
2371         array unset selected_paths
2372         $ui_index tag remove in_sel 0.0 end
2373         $ui_workdir tag remove in_sel 0.0 end
2374
2375         # Determine the state of the file
2376         if {[info exists file_states($path)]} {
2377                 set state [lindex $file_states($path) 0]
2378         } else {
2379                 set state {__}
2380         }
2381
2382         # Restage the file, or simply show the diff
2383         if {$col == 0 && $y > 1} {
2384                 # Conflicts need special handling
2385                 if {[string first {U} $state] >= 0} {
2386                         # $w must always be $ui_workdir, but...
2387                         if {$w ne $ui_workdir} { set lno {} }
2388                         merge_stage_workdir $path $lno
2389                         return
2390                 }
2391
2392                 if {[string index $state 1] eq {O}} {
2393                         set mmask {}
2394                 } else {
2395                         set mmask {[^O]}
2396                 }
2397
2398                 set after [next_diff_after_action $w $path $lno $mmask]
2399
2400                 if {$w eq $ui_index} {
2401                         update_indexinfo \
2402                                 "Unstaging [short_path $path] from commit" \
2403                                 [list $path] \
2404                                 [concat $after [list ui_ready]]
2405                 } elseif {$w eq $ui_workdir} {
2406                         update_index \
2407                                 "Adding [short_path $path]" \
2408                                 [list $path] \
2409                                 [concat $after [list ui_ready]]
2410                 }
2411         } else {
2412                 show_diff $path $w $lno
2413         }
2414 }
2415
2416 proc add_one_to_selection {w x y} {
2417         global file_lists last_clicked selected_paths
2418
2419         set lno [lindex [split [$w index @$x,$y] .] 0]
2420         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2421         if {$path eq {}} {
2422                 set last_clicked {}
2423                 return
2424         }
2425
2426         if {$last_clicked ne {}
2427                 && [lindex $last_clicked 0] ne $w} {
2428                 array unset selected_paths
2429                 [lindex $last_clicked 0] tag remove in_sel 0.0 end
2430         }
2431
2432         set last_clicked [list $w $lno]
2433         if {[catch {set in_sel $selected_paths($path)}]} {
2434                 set in_sel 0
2435         }
2436         if {$in_sel} {
2437                 unset selected_paths($path)
2438                 $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
2439         } else {
2440                 set selected_paths($path) 1
2441                 $w tag add in_sel $lno.0 [expr {$lno + 1}].0
2442         }
2443 }
2444
2445 proc add_range_to_selection {w x y} {
2446         global file_lists last_clicked selected_paths
2447
2448         if {[lindex $last_clicked 0] ne $w} {
2449                 toggle_or_diff $w $x $y
2450                 return
2451         }
2452
2453         set lno [lindex [split [$w index @$x,$y] .] 0]
2454         set lc [lindex $last_clicked 1]
2455         if {$lc < $lno} {
2456                 set begin $lc
2457                 set end $lno
2458         } else {
2459                 set begin $lno
2460                 set end $lc
2461         }
2462
2463         foreach path [lrange $file_lists($w) \
2464                 [expr {$begin - 1}] \
2465                 [expr {$end - 1}]] {
2466                 set selected_paths($path) 1
2467         }
2468         $w tag add in_sel $begin.0 [expr {$end + 1}].0
2469 }
2470
2471 proc show_more_context {} {
2472         global repo_config
2473         if {$repo_config(gui.diffcontext) < 99} {
2474                 incr repo_config(gui.diffcontext)
2475                 reshow_diff
2476         }
2477 }
2478
2479 proc show_less_context {} {
2480         global repo_config
2481         if {$repo_config(gui.diffcontext) > 1} {
2482                 incr repo_config(gui.diffcontext) -1
2483                 reshow_diff
2484         }
2485 }
2486
2487 ######################################################################
2488 ##
2489 ## ui construction
2490
2491 set ui_comm {}
2492
2493 # -- Menu Bar
2494 #
2495 menu .mbar -tearoff 0
2496 if {[is_MacOSX]} {
2497         # -- Apple Menu (Mac OS X only)
2498         #
2499         .mbar add cascade -label Apple -menu .mbar.apple
2500         menu .mbar.apple
2501 }
2502 .mbar add cascade -label [mc Repository] -menu .mbar.repository
2503 .mbar add cascade -label [mc Edit] -menu .mbar.edit
2504 if {[is_enabled branch]} {
2505         .mbar add cascade -label [mc Branch] -menu .mbar.branch
2506 }
2507 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2508         .mbar add cascade -label [mc Commit@@noun] -menu .mbar.commit
2509 }
2510 if {[is_enabled transport]} {
2511         .mbar add cascade -label [mc Merge] -menu .mbar.merge
2512         .mbar add cascade -label [mc Remote] -menu .mbar.remote
2513 }
2514 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2515         .mbar add cascade -label [mc Tools] -menu .mbar.tools
2516 }
2517
2518 # -- Repository Menu
2519 #
2520 menu .mbar.repository
2521
2522 if {![is_bare]} {
2523         .mbar.repository add command \
2524                 -label [mc "Explore Working Copy"] \
2525                 -command {do_explore}
2526         .mbar.repository add separator
2527 }
2528
2529 .mbar.repository add command \
2530         -label [mc "Browse Current Branch's Files"] \
2531         -command {browser::new $current_branch}
2532 set ui_browse_current [.mbar.repository index last]
2533 .mbar.repository add command \
2534         -label [mc "Browse Branch Files..."] \
2535         -command browser_open::dialog
2536 .mbar.repository add separator
2537
2538 .mbar.repository add command \
2539         -label [mc "Visualize Current Branch's History"] \
2540         -command {do_gitk $current_branch}
2541 set ui_visualize_current [.mbar.repository index last]
2542 .mbar.repository add command \
2543         -label [mc "Visualize All Branch History"] \
2544         -command {do_gitk --all}
2545 .mbar.repository add separator
2546
2547 proc current_branch_write {args} {
2548         global current_branch
2549         .mbar.repository entryconf $::ui_browse_current \
2550                 -label [mc "Browse %s's Files" $current_branch]
2551         .mbar.repository entryconf $::ui_visualize_current \
2552                 -label [mc "Visualize %s's History" $current_branch]
2553 }
2554 trace add variable current_branch write current_branch_write
2555
2556 if {[is_enabled multicommit]} {
2557         .mbar.repository add command -label [mc "Database Statistics"] \
2558                 -command do_stats
2559
2560         .mbar.repository add command -label [mc "Compress Database"] \
2561                 -command do_gc
2562
2563         .mbar.repository add command -label [mc "Verify Database"] \
2564                 -command do_fsck_objects
2565
2566         .mbar.repository add separator
2567
2568         if {[is_Cygwin]} {
2569                 .mbar.repository add command \
2570                         -label [mc "Create Desktop Icon"] \
2571                         -command do_cygwin_shortcut
2572         } elseif {[is_Windows]} {
2573                 .mbar.repository add command \
2574                         -label [mc "Create Desktop Icon"] \
2575                         -command do_windows_shortcut
2576         } elseif {[is_MacOSX]} {
2577                 .mbar.repository add command \
2578                         -label [mc "Create Desktop Icon"] \
2579                         -command do_macosx_app
2580         }
2581 }
2582
2583 if {[is_MacOSX]} {
2584         proc ::tk::mac::Quit {args} { do_quit }
2585 } else {
2586         .mbar.repository add command -label [mc Quit] \
2587                 -command do_quit \
2588                 -accelerator $M1T-Q
2589 }
2590
2591 # -- Edit Menu
2592 #
2593 menu .mbar.edit
2594 .mbar.edit add command -label [mc Undo] \
2595         -command {catch {[focus] edit undo}} \
2596         -accelerator $M1T-Z
2597 .mbar.edit add command -label [mc Redo] \
2598         -command {catch {[focus] edit redo}} \
2599         -accelerator $M1T-Y
2600 .mbar.edit add separator
2601 .mbar.edit add command -label [mc Cut] \
2602         -command {catch {tk_textCut [focus]}} \
2603         -accelerator $M1T-X
2604 .mbar.edit add command -label [mc Copy] \
2605         -command {catch {tk_textCopy [focus]}} \
2606         -accelerator $M1T-C
2607 .mbar.edit add command -label [mc Paste] \
2608         -command {catch {tk_textPaste [focus]; [focus] see insert}} \
2609         -accelerator $M1T-V
2610 .mbar.edit add command -label [mc Delete] \
2611         -command {catch {[focus] delete sel.first sel.last}} \
2612         -accelerator Del
2613 .mbar.edit add separator
2614 .mbar.edit add command -label [mc "Select All"] \
2615         -command {catch {[focus] tag add sel 0.0 end}} \
2616         -accelerator $M1T-A
2617
2618 # -- Branch Menu
2619 #
2620 if {[is_enabled branch]} {
2621         menu .mbar.branch
2622
2623         .mbar.branch add command -label [mc "Create..."] \
2624                 -command branch_create::dialog \
2625                 -accelerator $M1T-N
2626         lappend disable_on_lock [list .mbar.branch entryconf \
2627                 [.mbar.branch index last] -state]
2628
2629         .mbar.branch add command -label [mc "Checkout..."] \
2630                 -command branch_checkout::dialog \
2631                 -accelerator $M1T-O
2632         lappend disable_on_lock [list .mbar.branch entryconf \
2633                 [.mbar.branch index last] -state]
2634
2635         .mbar.branch add command -label [mc "Rename..."] \
2636                 -command branch_rename::dialog
2637         lappend disable_on_lock [list .mbar.branch entryconf \
2638                 [.mbar.branch index last] -state]
2639
2640         .mbar.branch add command -label [mc "Delete..."] \
2641                 -command branch_delete::dialog
2642         lappend disable_on_lock [list .mbar.branch entryconf \
2643                 [.mbar.branch index last] -state]
2644
2645         .mbar.branch add command -label [mc "Reset..."] \
2646                 -command merge::reset_hard
2647         lappend disable_on_lock [list .mbar.branch entryconf \
2648                 [.mbar.branch index last] -state]
2649 }
2650
2651 # -- Commit Menu
2652 #
2653 proc commit_btn_caption {} {
2654         if {[is_enabled nocommit]} {
2655                 return [mc "Done"]
2656         } else {
2657                 return [mc Commit@@verb]
2658         }
2659 }
2660
2661 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2662         menu .mbar.commit
2663
2664         if {![is_enabled nocommit]} {
2665                 .mbar.commit add radiobutton \
2666                         -label [mc "New Commit"] \
2667                         -command do_select_commit_type \
2668                         -variable selected_commit_type \
2669                         -value new
2670                 lappend disable_on_lock \
2671                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2672
2673                 .mbar.commit add radiobutton \
2674                         -label [mc "Amend Last Commit"] \
2675                         -command do_select_commit_type \
2676                         -variable selected_commit_type \
2677                         -value amend
2678                 lappend disable_on_lock \
2679                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2680
2681                 .mbar.commit add separator
2682         }
2683
2684         .mbar.commit add command -label [mc Rescan] \
2685                 -command ui_do_rescan \
2686                 -accelerator F5
2687         lappend disable_on_lock \
2688                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2689
2690         .mbar.commit add command -label [mc "Stage To Commit"] \
2691                 -command do_add_selection \
2692                 -accelerator $M1T-T
2693         lappend disable_on_lock \
2694                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2695
2696         .mbar.commit add command -label [mc "Stage Changed Files To Commit"] \
2697                 -command do_add_all \
2698                 -accelerator $M1T-I
2699         lappend disable_on_lock \
2700                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2701
2702         .mbar.commit add command -label [mc "Unstage From Commit"] \
2703                 -command do_unstage_selection \
2704                 -accelerator $M1T-U
2705         lappend disable_on_lock \
2706                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2707
2708         .mbar.commit add command -label [mc "Revert Changes"] \
2709                 -command do_revert_selection \
2710                 -accelerator $M1T-J
2711         lappend disable_on_lock \
2712                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2713
2714         .mbar.commit add separator
2715
2716         .mbar.commit add command -label [mc "Show Less Context"] \
2717                 -command show_less_context \
2718                 -accelerator $M1T-\-
2719
2720         .mbar.commit add command -label [mc "Show More Context"] \
2721                 -command show_more_context \
2722                 -accelerator $M1T-=
2723
2724         .mbar.commit add separator
2725
2726         if {![is_enabled nocommitmsg]} {
2727                 .mbar.commit add command -label [mc "Sign Off"] \
2728                         -command do_signoff \
2729                         -accelerator $M1T-S
2730         }
2731
2732         .mbar.commit add command -label [commit_btn_caption] \
2733                 -command do_commit \
2734                 -accelerator $M1T-Return
2735         lappend disable_on_lock \
2736                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2737 }
2738
2739 # -- Merge Menu
2740 #
2741 if {[is_enabled branch]} {
2742         menu .mbar.merge
2743         .mbar.merge add command -label [mc "Local Merge..."] \
2744                 -command merge::dialog \
2745                 -accelerator $M1T-M
2746         lappend disable_on_lock \
2747                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2748         .mbar.merge add command -label [mc "Abort Merge..."] \
2749                 -command merge::reset_hard
2750         lappend disable_on_lock \
2751                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2752 }
2753
2754 # -- Transport Menu
2755 #
2756 if {[is_enabled transport]} {
2757         menu .mbar.remote
2758
2759         .mbar.remote add command \
2760                 -label [mc "Add..."] \
2761                 -command remote_add::dialog \
2762                 -accelerator $M1T-A
2763         .mbar.remote add command \
2764                 -label [mc "Push..."] \
2765                 -command do_push_anywhere \
2766                 -accelerator $M1T-P
2767         .mbar.remote add command \
2768                 -label [mc "Delete Branch..."] \
2769                 -command remote_branch_delete::dialog
2770 }
2771
2772 if {[is_MacOSX]} {
2773         proc ::tk::mac::ShowPreferences {} {do_options}
2774 } else {
2775         # -- Edit Menu
2776         #
2777         .mbar.edit add separator
2778         .mbar.edit add command -label [mc "Options..."] \
2779                 -command do_options
2780 }
2781
2782 # -- Tools Menu
2783 #
2784 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2785         set tools_menubar .mbar.tools
2786         menu $tools_menubar
2787         $tools_menubar add separator
2788         $tools_menubar add command -label [mc "Add..."] -command tools_add::dialog
2789         $tools_menubar add command -label [mc "Remove..."] -command tools_remove::dialog
2790         set tools_tailcnt 3
2791         if {[array names repo_config guitool.*.cmd] ne {}} {
2792                 tools_populate_all
2793         }
2794 }
2795
2796 # -- Help Menu
2797 #
2798 .mbar add cascade -label [mc Help] -menu .mbar.help
2799 menu .mbar.help
2800
2801 if {[is_MacOSX]} {
2802         .mbar.apple add command -label [mc "About %s" [appname]] \
2803                 -command do_about
2804         .mbar.apple add separator
2805 } else {
2806         .mbar.help add command -label [mc "About %s" [appname]] \
2807                 -command do_about
2808 }
2809 . configure -menu .mbar
2810
2811 set doc_path [githtmldir]
2812 if {$doc_path ne {}} {
2813         set doc_path [file join $doc_path index.html]
2814
2815         if {[is_Cygwin]} {
2816                 set doc_path [exec cygpath --mixed $doc_path]
2817         }
2818 }
2819
2820 if {[file isfile $doc_path]} {
2821         set doc_url "file:$doc_path"
2822 } else {
2823         set doc_url {http://www.kernel.org/pub/software/scm/git/docs/}
2824 }
2825
2826 proc start_browser {url} {
2827         git "web--browse" $url
2828 }
2829
2830 .mbar.help add command -label [mc "Online Documentation"] \
2831         -command [list start_browser $doc_url]
2832
2833 .mbar.help add command -label [mc "Show SSH Key"] \
2834         -command do_ssh_key
2835
2836 unset doc_path doc_url
2837
2838 # -- Standard bindings
2839 #
2840 wm protocol . WM_DELETE_WINDOW do_quit
2841 bind all <$M1B-Key-q> do_quit
2842 bind all <$M1B-Key-Q> do_quit
2843 bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
2844 bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
2845
2846 set subcommand_args {}
2847 proc usage {} {
2848         set s "usage: $::argv0 $::subcommand $::subcommand_args"
2849         if {[tk windowingsystem] eq "win32"} {
2850                 wm withdraw .
2851                 tk_messageBox -icon info -title "Usage" -message $s
2852         } else {
2853                 puts stderr $s
2854         }
2855         exit 1
2856 }
2857
2858 proc normalize_relpath {path} {
2859         set elements {}
2860         foreach item [file split $path] {
2861                 if {$item eq {.}} continue
2862                 if {$item eq {..} && [llength $elements] > 0
2863                     && [lindex $elements end] ne {..}} {
2864                         set elements [lrange $elements 0 end-1]
2865                         continue
2866                 }
2867                 lappend elements $item
2868         }
2869         return [eval file join $elements]
2870 }
2871
2872 # -- Not a normal commit type invocation?  Do that instead!
2873 #
2874 switch -- $subcommand {
2875 browser -
2876 blame {
2877         if {$subcommand eq "blame"} {
2878                 set subcommand_args {[--line=<num>] rev? path}
2879         } else {
2880                 set subcommand_args {rev? path}
2881         }
2882         if {$argv eq {}} usage
2883         set head {}
2884         set path {}
2885         set jump_spec {}
2886         set is_path 0
2887         foreach a $argv {
2888                 if {$is_path || [file exists $_prefix$a]} {
2889                         if {$path ne {}} usage
2890                         set path [normalize_relpath $_prefix$a]
2891                         break
2892                 } elseif {$a eq {--}} {
2893                         if {$path ne {}} {
2894                                 if {$head ne {}} usage
2895                                 set head $path
2896                                 set path {}
2897                         }
2898                         set is_path 1
2899                 } elseif {[regexp {^--line=(\d+)$} $a a lnum]} {
2900                         if {$jump_spec ne {} || $head ne {}} usage
2901                         set jump_spec [list $lnum]
2902                 } elseif {$head eq {}} {
2903                         if {$head ne {}} usage
2904                         set head $a
2905                         set is_path 1
2906                 } else {
2907                         usage
2908                 }
2909         }
2910         unset is_path
2911
2912         if {$head ne {} && $path eq {}} {
2913                 set path [normalize_relpath $_prefix$head]
2914                 set head {}
2915         }
2916
2917         if {$head eq {}} {
2918                 load_current_branch
2919         } else {
2920                 if {[regexp {^[0-9a-f]{1,39}$} $head]} {
2921                         if {[catch {
2922                                         set head [git rev-parse --verify $head]
2923                                 } err]} {
2924                                 puts stderr $err
2925                                 exit 1
2926                         }
2927                 }
2928                 set current_branch $head
2929         }
2930
2931         wm deiconify .
2932         switch -- $subcommand {
2933         browser {
2934                 if {$jump_spec ne {}} usage
2935                 if {$head eq {}} {
2936                         if {$path ne {} && [file isdirectory $path]} {
2937                                 set head $current_branch
2938                         } else {
2939                                 set head $path
2940                                 set path {}
2941                         }
2942                 }
2943                 browser::new $head $path
2944         }
2945         blame   {
2946                 if {$head eq {} && ![file exists $path]} {
2947                         catch {wm withdraw .}
2948                         tk_messageBox \
2949                                 -icon error \
2950                                 -type ok \
2951                                 -title [mc "git-gui: fatal error"] \
2952                                 -message [mc "fatal: cannot stat path %s: No such file or directory" $path]
2953                         exit 1
2954                 }
2955                 blame::new $head $path $jump_spec
2956         }
2957         }
2958         return
2959 }
2960 citool -
2961 gui {
2962         if {[llength $argv] != 0} {
2963                 puts -nonewline stderr "usage: $argv0"
2964                 if {$subcommand ne {gui}
2965                         && [file tail $argv0] ne "git-$subcommand"} {
2966                         puts -nonewline stderr " $subcommand"
2967                 }
2968                 puts stderr {}
2969                 exit 1
2970         }
2971         # fall through to setup UI for commits
2972 }
2973 default {
2974         puts stderr "usage: $argv0 \[{blame|browser|citool}\]"
2975         exit 1
2976 }
2977 }
2978
2979 # -- Branch Control
2980 #
2981 ${NS}::frame .branch
2982 if {!$use_ttk} {.branch configure -borderwidth 1 -relief sunken}
2983 ${NS}::label .branch.l1 \
2984         -text [mc "Current Branch:"] \
2985         -anchor w \
2986         -justify left
2987 ${NS}::label .branch.cb \
2988         -textvariable current_branch \
2989         -anchor w \
2990         -justify left
2991 pack .branch.l1 -side left
2992 pack .branch.cb -side left -fill x
2993 pack .branch -side top -fill x
2994
2995 # -- Main Window Layout
2996 #
2997 ${NS}::panedwindow .vpane -orient horizontal
2998 ${NS}::panedwindow .vpane.files -orient vertical
2999 if {$use_ttk} {
3000         .vpane add .vpane.files
3001 } else {
3002         .vpane add .vpane.files -sticky nsew -height 100 -width 200
3003 }
3004 pack .vpane -anchor n -side top -fill both -expand 1
3005
3006 # -- Index File List
3007 #
3008 ${NS}::frame .vpane.files.index -height 100 -width 200
3009 tlabel .vpane.files.index.title \
3010         -text [mc "Staged Changes (Will Commit)"] \
3011         -background lightgreen -foreground black
3012 text $ui_index -background white -foreground black \
3013         -borderwidth 0 \
3014         -width 20 -height 10 \
3015         -wrap none \
3016         -cursor $cursor_ptr \
3017         -xscrollcommand {.vpane.files.index.sx set} \
3018         -yscrollcommand {.vpane.files.index.sy set} \
3019         -state disabled
3020 ${NS}::scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
3021 ${NS}::scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
3022 pack .vpane.files.index.title -side top -fill x
3023 pack .vpane.files.index.sx -side bottom -fill x
3024 pack .vpane.files.index.sy -side right -fill y
3025 pack $ui_index -side left -fill both -expand 1
3026
3027 # -- Working Directory File List
3028 #
3029 ${NS}::frame .vpane.files.workdir -height 100 -width 200
3030 tlabel .vpane.files.workdir.title -text [mc "Unstaged Changes"] \
3031         -background lightsalmon -foreground black
3032 text $ui_workdir -background white -foreground black \
3033         -borderwidth 0 \
3034         -width 20 -height 10 \
3035         -wrap none \
3036         -cursor $cursor_ptr \
3037         -xscrollcommand {.vpane.files.workdir.sx set} \
3038         -yscrollcommand {.vpane.files.workdir.sy set} \
3039         -state disabled
3040 ${NS}::scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
3041 ${NS}::scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
3042 pack .vpane.files.workdir.title -side top -fill x
3043 pack .vpane.files.workdir.sx -side bottom -fill x
3044 pack .vpane.files.workdir.sy -side right -fill y
3045 pack $ui_workdir -side left -fill both -expand 1
3046
3047 .vpane.files add .vpane.files.workdir
3048 .vpane.files add .vpane.files.index
3049 if {!$use_ttk} {
3050         .vpane.files paneconfigure .vpane.files.workdir -sticky news
3051         .vpane.files paneconfigure .vpane.files.index -sticky news
3052 }
3053
3054 foreach i [list $ui_index $ui_workdir] {
3055         rmsel_tag $i
3056         $i tag conf in_diff -background [$i tag cget in_sel -background]
3057 }
3058 unset i
3059
3060 # -- Diff and Commit Area
3061 #
3062 ${NS}::frame .vpane.lower -height 300 -width 400
3063 ${NS}::frame .vpane.lower.commarea
3064 ${NS}::frame .vpane.lower.diff -relief sunken -borderwidth 1
3065 pack .vpane.lower.diff -fill both -expand 1
3066 pack .vpane.lower.commarea -side bottom -fill x
3067 .vpane add .vpane.lower
3068 if {!$use_ttk} {.vpane paneconfigure .vpane.lower -sticky nsew}
3069
3070 # -- Commit Area Buttons
3071 #
3072 ${NS}::frame .vpane.lower.commarea.buttons
3073 ${NS}::label .vpane.lower.commarea.buttons.l -text {} \
3074         -anchor w \
3075         -justify left
3076 pack .vpane.lower.commarea.buttons.l -side top -fill x
3077 pack .vpane.lower.commarea.buttons -side left -fill y
3078
3079 ${NS}::button .vpane.lower.commarea.buttons.rescan -text [mc Rescan] \
3080         -command ui_do_rescan
3081 pack .vpane.lower.commarea.buttons.rescan -side top -fill x
3082 lappend disable_on_lock \
3083         {.vpane.lower.commarea.buttons.rescan conf -state}
3084
3085 ${NS}::button .vpane.lower.commarea.buttons.incall -text [mc "Stage Changed"] \
3086         -command do_add_all
3087 pack .vpane.lower.commarea.buttons.incall -side top -fill x
3088 lappend disable_on_lock \
3089         {.vpane.lower.commarea.buttons.incall conf -state}
3090
3091 if {![is_enabled nocommitmsg]} {
3092         ${NS}::button .vpane.lower.commarea.buttons.signoff -text [mc "Sign Off"] \
3093                 -command do_signoff
3094         pack .vpane.lower.commarea.buttons.signoff -side top -fill x
3095 }
3096
3097 ${NS}::button .vpane.lower.commarea.buttons.commit -text [commit_btn_caption] \
3098         -command do_commit
3099 pack .vpane.lower.commarea.buttons.commit -side top -fill x
3100 lappend disable_on_lock \
3101         {.vpane.lower.commarea.buttons.commit conf -state}
3102
3103 if {![is_enabled nocommit]} {
3104         ${NS}::button .vpane.lower.commarea.buttons.push -text [mc Push] \
3105                 -command do_push_anywhere
3106         pack .vpane.lower.commarea.buttons.push -side top -fill x
3107 }
3108
3109 # -- Commit Message Buffer
3110 #
3111 ${NS}::frame .vpane.lower.commarea.buffer
3112 ${NS}::frame .vpane.lower.commarea.buffer.header
3113 set ui_comm .vpane.lower.commarea.buffer.t
3114 set ui_coml .vpane.lower.commarea.buffer.header.l
3115
3116 if {![is_enabled nocommit]} {
3117         ${NS}::radiobutton .vpane.lower.commarea.buffer.header.new \
3118                 -text [mc "New Commit"] \
3119                 -command do_select_commit_type \
3120                 -variable selected_commit_type \
3121                 -value new
3122         lappend disable_on_lock \
3123                 [list .vpane.lower.commarea.buffer.header.new conf -state]
3124         ${NS}::radiobutton .vpane.lower.commarea.buffer.header.amend \
3125                 -text [mc "Amend Last Commit"] \
3126                 -command do_select_commit_type \
3127                 -variable selected_commit_type \
3128                 -value amend
3129         lappend disable_on_lock \
3130                 [list .vpane.lower.commarea.buffer.header.amend conf -state]
3131 }
3132
3133 ${NS}::label $ui_coml \
3134         -anchor w \
3135         -justify left
3136 proc trace_commit_type {varname args} {
3137         global ui_coml commit_type
3138         switch -glob -- $commit_type {
3139         initial       {set txt [mc "Initial Commit Message:"]}
3140         amend         {set txt [mc "Amended Commit Message:"]}
3141         amend-initial {set txt [mc "Amended Initial Commit Message:"]}
3142         amend-merge   {set txt [mc "Amended Merge Commit Message:"]}
3143         merge         {set txt [mc "Merge Commit Message:"]}
3144         *             {set txt [mc "Commit Message:"]}
3145         }
3146         $ui_coml conf -text $txt
3147 }
3148 trace add variable commit_type write trace_commit_type
3149 pack $ui_coml -side left -fill x
3150
3151 if {![is_enabled nocommit]} {
3152         pack .vpane.lower.commarea.buffer.header.amend -side right
3153         pack .vpane.lower.commarea.buffer.header.new -side right
3154 }
3155
3156 text $ui_comm -background white -foreground black \
3157         -borderwidth 1 \
3158         -undo true \
3159         -maxundo 20 \
3160         -autoseparators true \
3161         -relief sunken \
3162         -width $repo_config(gui.commitmsgwidth) -height 9 -wrap none \
3163         -font font_diff \
3164         -yscrollcommand {.vpane.lower.commarea.buffer.sby set}
3165 ${NS}::scrollbar .vpane.lower.commarea.buffer.sby \
3166         -command [list $ui_comm yview]
3167 pack .vpane.lower.commarea.buffer.header -side top -fill x
3168 pack .vpane.lower.commarea.buffer.sby -side right -fill y
3169 pack $ui_comm -side left -fill y
3170 pack .vpane.lower.commarea.buffer -side left -fill y
3171
3172 # -- Commit Message Buffer Context Menu
3173 #
3174 set ctxm .vpane.lower.commarea.buffer.ctxm
3175 menu $ctxm -tearoff 0
3176 $ctxm add command \
3177         -label [mc Cut] \
3178         -command {tk_textCut $ui_comm}
3179 $ctxm add command \
3180         -label [mc Copy] \
3181         -command {tk_textCopy $ui_comm}
3182 $ctxm add command \
3183         -label [mc Paste] \
3184         -command {tk_textPaste $ui_comm}
3185 $ctxm add command \
3186         -label [mc Delete] \
3187         -command {catch {$ui_comm delete sel.first sel.last}}
3188 $ctxm add separator
3189 $ctxm add command \
3190         -label [mc "Select All"] \
3191         -command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
3192 $ctxm add command \
3193         -label [mc "Copy All"] \
3194         -command {
3195                 $ui_comm tag add sel 0.0 end
3196                 tk_textCopy $ui_comm
3197                 $ui_comm tag remove sel 0.0 end
3198         }
3199 $ctxm add separator
3200 $ctxm add command \
3201         -label [mc "Sign Off"] \
3202         -command do_signoff
3203 set ui_comm_ctxm $ctxm
3204
3205 # -- Diff Header
3206 #
3207 proc trace_current_diff_path {varname args} {
3208         global current_diff_path diff_actions file_states
3209         if {$current_diff_path eq {}} {
3210                 set s {}
3211                 set f {}
3212                 set p {}
3213                 set o disabled
3214         } else {
3215                 set p $current_diff_path
3216                 set s [mapdesc [lindex $file_states($p) 0] $p]
3217                 set f [mc "File:"]
3218                 set p [escape_path $p]
3219                 set o normal
3220         }
3221
3222         .vpane.lower.diff.header.status configure -text $s
3223         .vpane.lower.diff.header.file configure -text $f
3224         .vpane.lower.diff.header.path configure -text $p
3225         foreach w $diff_actions {
3226                 uplevel #0 $w $o
3227         }
3228 }
3229 trace add variable current_diff_path write trace_current_diff_path
3230
3231 gold_frame .vpane.lower.diff.header
3232 tlabel .vpane.lower.diff.header.status \
3233         -background gold \
3234         -foreground black \
3235         -width $max_status_desc \
3236         -anchor w \
3237         -justify left
3238 tlabel .vpane.lower.diff.header.file \
3239         -background gold \
3240         -foreground black \
3241         -anchor w \
3242         -justify left
3243 tlabel .vpane.lower.diff.header.path \
3244         -background gold \
3245         -foreground black \
3246         -anchor w \
3247         -justify left
3248 pack .vpane.lower.diff.header.status -side left
3249 pack .vpane.lower.diff.header.file -side left
3250 pack .vpane.lower.diff.header.path -fill x
3251 set ctxm .vpane.lower.diff.header.ctxm
3252 menu $ctxm -tearoff 0
3253 $ctxm add command \
3254         -label [mc Copy] \
3255         -command {
3256                 clipboard clear
3257                 clipboard append \
3258                         -format STRING \
3259                         -type STRING \
3260                         -- $current_diff_path
3261         }
3262 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3263 bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"
3264
3265 # -- Diff Body
3266 #
3267 ${NS}::frame .vpane.lower.diff.body
3268 set ui_diff .vpane.lower.diff.body.t
3269 text $ui_diff -background white -foreground black \
3270         -borderwidth 0 \
3271         -width 80 -height 5 -wrap none \
3272         -font font_diff \
3273         -xscrollcommand {.vpane.lower.diff.body.sbx set} \
3274         -yscrollcommand {.vpane.lower.diff.body.sby set} \
3275         -state disabled
3276 ${NS}::scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
3277         -command [list $ui_diff xview]
3278 ${NS}::scrollbar .vpane.lower.diff.body.sby -orient vertical \
3279         -command [list $ui_diff yview]
3280 pack .vpane.lower.diff.body.sbx -side bottom -fill x
3281 pack .vpane.lower.diff.body.sby -side right -fill y
3282 pack $ui_diff -side left -fill both -expand 1
3283 pack .vpane.lower.diff.header -side top -fill x
3284 pack .vpane.lower.diff.body -side bottom -fill both -expand 1
3285
3286 $ui_diff tag conf d_cr -elide true
3287 $ui_diff tag conf d_@ -foreground blue -font font_diffbold
3288 $ui_diff tag conf d_+ -foreground {#00a000}
3289 $ui_diff tag conf d_- -foreground red
3290
3291 $ui_diff tag conf d_++ -foreground {#00a000}
3292 $ui_diff tag conf d_-- -foreground red
3293 $ui_diff tag conf d_+s \
3294         -foreground {#00a000} \
3295         -background {#e2effa}
3296 $ui_diff tag conf d_-s \
3297         -foreground red \
3298         -background {#e2effa}
3299 $ui_diff tag conf d_s+ \
3300         -foreground {#00a000} \
3301         -background ivory1
3302 $ui_diff tag conf d_s- \
3303         -foreground red \
3304         -background ivory1
3305
3306 $ui_diff tag conf d<<<<<<< \
3307         -foreground orange \
3308         -font font_diffbold
3309 $ui_diff tag conf d======= \
3310         -foreground orange \
3311         -font font_diffbold
3312 $ui_diff tag conf d>>>>>>> \
3313         -foreground orange \
3314         -font font_diffbold
3315
3316 $ui_diff tag raise sel
3317
3318 # -- Diff Body Context Menu
3319 #
3320
3321 proc create_common_diff_popup {ctxm} {
3322         $ctxm add command \
3323                 -label [mc Refresh] \
3324                 -command reshow_diff
3325         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3326         $ctxm add command \
3327                 -label [mc Copy] \
3328                 -command {tk_textCopy $ui_diff}
3329         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3330         $ctxm add command \
3331                 -label [mc "Select All"] \
3332                 -command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
3333         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3334         $ctxm add command \
3335                 -label [mc "Copy All"] \
3336                 -command {
3337                         $ui_diff tag add sel 0.0 end
3338                         tk_textCopy $ui_diff
3339                         $ui_diff tag remove sel 0.0 end
3340                 }
3341         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3342         $ctxm add separator
3343         $ctxm add command \
3344                 -label [mc "Decrease Font Size"] \
3345                 -command {incr_font_size font_diff -1}
3346         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3347         $ctxm add command \
3348                 -label [mc "Increase Font Size"] \
3349                 -command {incr_font_size font_diff 1}
3350         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3351         $ctxm add separator
3352         set emenu $ctxm.enc
3353         menu $emenu
3354         build_encoding_menu $emenu [list force_diff_encoding]
3355         $ctxm add cascade \
3356                 -label [mc "Encoding"] \
3357                 -menu $emenu
3358         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3359         $ctxm add separator
3360         $ctxm add command -label [mc "Options..."] \
3361                 -command do_options
3362 }
3363
3364 set ctxm .vpane.lower.diff.body.ctxm
3365 menu $ctxm -tearoff 0
3366 $ctxm add command \
3367         -label [mc "Apply/Reverse Hunk"] \
3368         -command {apply_hunk $cursorX $cursorY}
3369 set ui_diff_applyhunk [$ctxm index last]
3370 lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
3371 $ctxm add command \
3372         -label [mc "Apply/Reverse Line"] \
3373         -command {apply_range_or_line $cursorX $cursorY; do_rescan}
3374 set ui_diff_applyline [$ctxm index last]
3375 lappend diff_actions [list $ctxm entryconf $ui_diff_applyline -state]
3376 $ctxm add separator
3377 $ctxm add command \
3378         -label [mc "Show Less Context"] \
3379         -command show_less_context
3380 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3381 $ctxm add command \
3382         -label [mc "Show More Context"] \
3383         -command show_more_context
3384 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3385 $ctxm add separator
3386 create_common_diff_popup $ctxm
3387
3388 set ctxmmg .vpane.lower.diff.body.ctxmmg
3389 menu $ctxmmg -tearoff 0
3390 $ctxmmg add command \
3391         -label [mc "Run Merge Tool"] \
3392         -command {merge_resolve_tool}
3393 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3394 $ctxmmg add separator
3395 $ctxmmg add command \
3396         -label [mc "Use Remote Version"] \
3397         -command {merge_resolve_one 3}
3398 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3399 $ctxmmg add command \
3400         -label [mc "Use Local Version"] \
3401         -command {merge_resolve_one 2}
3402 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3403 $ctxmmg add command \
3404         -label [mc "Revert To Base"] \
3405         -command {merge_resolve_one 1}
3406 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3407 $ctxmmg add separator
3408 $ctxmmg add command \
3409         -label [mc "Show Less Context"] \
3410         -command show_less_context
3411 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3412 $ctxmmg add command \
3413         -label [mc "Show More Context"] \
3414         -command show_more_context
3415 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3416 $ctxmmg add separator
3417 create_common_diff_popup $ctxmmg
3418
3419 set ctxmsm .vpane.lower.diff.body.ctxmsm
3420 menu $ctxmsm -tearoff 0
3421 $ctxmsm add command \
3422         -label [mc "Visualize These Changes In The Submodule"] \
3423         -command {do_gitk -- true}
3424 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3425 $ctxmsm add command \
3426         -label [mc "Visualize Current Branch History In The Submodule"] \
3427         -command {do_gitk {} true}
3428 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3429 $ctxmsm add command \
3430         -label [mc "Visualize All Branch History In The Submodule"] \
3431         -command {do_gitk --all true}
3432 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3433 $ctxmsm add separator
3434 $ctxmsm add command \
3435         -label [mc "Start git gui In The Submodule"] \
3436         -command {do_git_gui}
3437 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3438 $ctxmsm add separator
3439 create_common_diff_popup $ctxmsm
3440
3441 proc has_textconv {path} {
3442         if {[is_config_false gui.textconv]} {
3443                 return 0
3444         }
3445         set filter [gitattr $path diff set]
3446         set textconv [get_config [join [list diff $filter textconv] .]]
3447         if {$filter ne {set} && $textconv ne {}} {
3448                 return 1
3449         } else {
3450                 return 0
3451         }
3452 }
3453
3454 proc popup_diff_menu {ctxm ctxmmg ctxmsm x y X Y} {
3455         global current_diff_path file_states
3456         set ::cursorX $x
3457         set ::cursorY $y
3458         if {[info exists file_states($current_diff_path)]} {
3459                 set state [lindex $file_states($current_diff_path) 0]
3460         } else {
3461                 set state {__}
3462         }
3463         if {[string first {U} $state] >= 0} {
3464                 tk_popup $ctxmmg $X $Y
3465         } elseif {$::is_submodule_diff} {
3466                 tk_popup $ctxmsm $X $Y
3467         } else {
3468                 set has_range [expr {[$::ui_diff tag nextrange sel 0.0] != {}}]
3469                 if {$::ui_index eq $::current_diff_side} {
3470                         set l [mc "Unstage Hunk From Commit"]
3471                         if {$has_range} {
3472                                 set t [mc "Unstage Lines From Commit"]
3473                         } else {
3474                                 set t [mc "Unstage Line From Commit"]
3475                         }
3476                 } else {
3477                         set l [mc "Stage Hunk For Commit"]
3478                         if {$has_range} {
3479                                 set t [mc "Stage Lines For Commit"]
3480                         } else {
3481                                 set t [mc "Stage Line For Commit"]
3482                         }
3483                 }
3484                 if {$::is_3way_diff
3485                         || $current_diff_path eq {}
3486                         || {__} eq $state
3487                         || {_O} eq $state
3488                         || {_T} eq $state
3489                         || {T_} eq $state
3490                         || [has_textconv $current_diff_path]} {
3491                         set s disabled
3492                 } else {
3493                         set s normal
3494                 }
3495                 $ctxm entryconf $::ui_diff_applyhunk -state $s -label $l
3496                 $ctxm entryconf $::ui_diff_applyline -state $s -label $t
3497                 tk_popup $ctxm $X $Y
3498         }
3499 }
3500 bind_button3 $ui_diff [list popup_diff_menu $ctxm $ctxmmg $ctxmsm %x %y %X %Y]
3501
3502 # -- Status Bar
3503 #
3504 set main_status [::status_bar::new .status]
3505 pack .status -anchor w -side bottom -fill x
3506 $main_status show [mc "Initializing..."]
3507
3508 # -- Load geometry
3509 #
3510 proc on_ttk_pane_mapped {w pane pos} {
3511         bind $w <Map> {}
3512         after 0 [list after idle [list $w sashpos $pane $pos]]
3513 }
3514 proc on_tk_pane_mapped {w pane x y} {
3515         bind $w <Map> {}
3516         after 0 [list after idle [list $w sash place $pane $x $y]]
3517 }
3518 proc on_application_mapped {} {
3519         global repo_config use_ttk
3520         bind . <Map> {}
3521         set gm $repo_config(gui.geometry)
3522         if {$use_ttk} {
3523                 bind .vpane <Map> \
3524                     [list on_ttk_pane_mapped %W 0 [lindex $gm 1]]
3525                 bind .vpane.files <Map> \
3526                     [list on_ttk_pane_mapped %W 0 [lindex $gm 2]]
3527         } else {
3528                 bind .vpane <Map> \
3529                     [list on_tk_pane_mapped %W 0 \
3530                          [lindex $gm 1] \
3531                          [lindex [.vpane sash coord 0] 1]]
3532                 bind .vpane.files <Map> \
3533                     [list on_tk_pane_mapped %W 0 \
3534                          [lindex [.vpane.files sash coord 0] 0] \
3535                          [lindex $gm 2]]
3536         }
3537         wm geometry . [lindex $gm 0]
3538 }
3539 if {[info exists repo_config(gui.geometry)]} {
3540         bind . <Map> [list on_application_mapped]
3541         wm geometry . [lindex $repo_config(gui.geometry) 0]
3542 }
3543
3544 # -- Load window state
3545 #
3546 if {[info exists repo_config(gui.wmstate)]} {
3547         catch {wm state . $repo_config(gui.wmstate)}
3548 }
3549
3550 # -- Key Bindings
3551 #
3552 bind $ui_comm <$M1B-Key-Return> {do_commit;break}
3553 bind $ui_comm <$M1B-Key-t> {do_add_selection;break}
3554 bind $ui_comm <$M1B-Key-T> {do_add_selection;break}
3555 bind $ui_comm <$M1B-Key-u> {do_unstage_selection;break}
3556 bind $ui_comm <$M1B-Key-U> {do_unstage_selection;break}
3557 bind $ui_comm <$M1B-Key-j> {do_revert_selection;break}
3558 bind $ui_comm <$M1B-Key-J> {do_revert_selection;break}
3559 bind $ui_comm <$M1B-Key-i> {do_add_all;break}
3560 bind $ui_comm <$M1B-Key-I> {do_add_all;break}
3561 bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
3562 bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
3563 bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
3564 bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
3565 bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
3566 bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
3567 bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3568 bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3569 bind $ui_comm <$M1B-Key-minus> {show_less_context;break}
3570 bind $ui_comm <$M1B-Key-KP_Subtract> {show_less_context;break}
3571 bind $ui_comm <$M1B-Key-equal> {show_more_context;break}
3572 bind $ui_comm <$M1B-Key-plus> {show_more_context;break}
3573 bind $ui_comm <$M1B-Key-KP_Add> {show_more_context;break}
3574
3575 bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
3576 bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
3577 bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
3578 bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
3579 bind $ui_diff <$M1B-Key-v> {break}
3580 bind $ui_diff <$M1B-Key-V> {break}
3581 bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3582 bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3583 bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
3584 bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
3585 bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
3586 bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
3587 bind $ui_diff <Key-k>         {catch {%W yview scroll -1 units};break}
3588 bind $ui_diff <Key-j>         {catch {%W yview scroll  1 units};break}
3589 bind $ui_diff <Key-h>         {catch {%W xview scroll -1 units};break}
3590 bind $ui_diff <Key-l>         {catch {%W xview scroll  1 units};break}
3591 bind $ui_diff <Control-Key-b> {catch {%W yview scroll -1 pages};break}
3592 bind $ui_diff <Control-Key-f> {catch {%W yview scroll  1 pages};break}
3593 bind $ui_diff <Button-1>   {focus %W}
3594
3595 if {[is_enabled branch]} {
3596         bind . <$M1B-Key-n> branch_create::dialog
3597         bind . <$M1B-Key-N> branch_create::dialog
3598         bind . <$M1B-Key-o> branch_checkout::dialog
3599         bind . <$M1B-Key-O> branch_checkout::dialog
3600         bind . <$M1B-Key-m> merge::dialog
3601         bind . <$M1B-Key-M> merge::dialog
3602 }
3603 if {[is_enabled transport]} {
3604         bind . <$M1B-Key-p> do_push_anywhere
3605         bind . <$M1B-Key-P> do_push_anywhere
3606 }
3607
3608 bind .   <Key-F5>     ui_do_rescan
3609 bind .   <$M1B-Key-r> ui_do_rescan
3610 bind .   <$M1B-Key-R> ui_do_rescan
3611 bind .   <$M1B-Key-s> do_signoff
3612 bind .   <$M1B-Key-S> do_signoff
3613 bind .   <$M1B-Key-t> do_add_selection
3614 bind .   <$M1B-Key-T> do_add_selection
3615 bind .   <$M1B-Key-j> do_revert_selection
3616 bind .   <$M1B-Key-J> do_revert_selection
3617 bind .   <$M1B-Key-i> do_add_all
3618 bind .   <$M1B-Key-I> do_add_all
3619 bind .   <$M1B-Key-minus> {show_less_context;break}
3620 bind .   <$M1B-Key-KP_Subtract> {show_less_context;break}
3621 bind .   <$M1B-Key-equal> {show_more_context;break}
3622 bind .   <$M1B-Key-plus> {show_more_context;break}
3623 bind .   <$M1B-Key-KP_Add> {show_more_context;break}
3624 bind .   <$M1B-Key-Return> do_commit
3625 foreach i [list $ui_index $ui_workdir] {
3626         bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
3627         bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
3628         bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
3629 }
3630 unset i
3631
3632 set file_lists($ui_index) [list]
3633 set file_lists($ui_workdir) [list]
3634
3635 wm title . "[appname] ([reponame]) [file normalize $_gitworktree]"
3636 focus -force $ui_comm
3637
3638 # -- Warn the user about environmental problems.  Cygwin's Tcl
3639 #    does *not* pass its env array onto any processes it spawns.
3640 #    This means that git processes get none of our environment.
3641 #
3642 if {[is_Cygwin]} {
3643         set ignored_env 0
3644         set suggest_user {}
3645         set msg [mc "Possible environment issues exist.
3646
3647 The following environment variables are probably
3648 going to be ignored by any Git subprocess run
3649 by %s:
3650
3651 " [appname]]
3652         foreach name [array names env] {
3653                 switch -regexp -- $name {
3654                 {^GIT_INDEX_FILE$} -
3655                 {^GIT_OBJECT_DIRECTORY$} -
3656                 {^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
3657                 {^GIT_DIFF_OPTS$} -
3658                 {^GIT_EXTERNAL_DIFF$} -
3659                 {^GIT_PAGER$} -
3660                 {^GIT_TRACE$} -
3661                 {^GIT_CONFIG$} -
3662                 {^GIT_(AUTHOR|COMMITTER)_DATE$} {
3663                         append msg " - $name\n"
3664                         incr ignored_env
3665                 }
3666                 {^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
3667                         append msg " - $name\n"
3668                         incr ignored_env
3669                         set suggest_user $name
3670                 }
3671                 }
3672         }
3673         if {$ignored_env > 0} {
3674                 append msg [mc "
3675 This is due to a known issue with the
3676 Tcl binary distributed by Cygwin."]
3677
3678                 if {$suggest_user ne {}} {
3679                         append msg [mc "
3680
3681 A good replacement for %s
3682 is placing values for the user.name and
3683 user.email settings into your personal
3684 ~/.gitconfig file.
3685 " $suggest_user]
3686                 }
3687                 warn_popup $msg
3688         }
3689         unset ignored_env msg suggest_user name
3690 }
3691
3692 # -- Only initialize complex UI if we are going to stay running.
3693 #
3694 if {[is_enabled transport]} {
3695         load_all_remotes
3696
3697         set n [.mbar.remote index end]
3698         populate_remotes_menu
3699         set n [expr {[.mbar.remote index end] - $n}]
3700         if {$n > 0} {
3701                 if {[.mbar.remote type 0] eq "tearoff"} { incr n }
3702                 .mbar.remote insert $n separator
3703         }
3704         unset n
3705 }
3706
3707 if {[winfo exists $ui_comm]} {
3708         set GITGUI_BCK_exists [load_message GITGUI_BCK]
3709
3710         # -- If both our backup and message files exist use the
3711         #    newer of the two files to initialize the buffer.
3712         #
3713         if {$GITGUI_BCK_exists} {
3714                 set m [gitdir GITGUI_MSG]
3715                 if {[file isfile $m]} {
3716                         if {[file mtime [gitdir GITGUI_BCK]] > [file mtime $m]} {
3717                                 catch {file delete [gitdir GITGUI_MSG]}
3718                         } else {
3719                                 $ui_comm delete 0.0 end
3720                                 $ui_comm edit reset
3721                                 $ui_comm edit modified false
3722                                 catch {file delete [gitdir GITGUI_BCK]}
3723                                 set GITGUI_BCK_exists 0
3724                         }
3725                 }
3726                 unset m
3727         }
3728
3729         proc backup_commit_buffer {} {
3730                 global ui_comm GITGUI_BCK_exists
3731
3732                 set m [$ui_comm edit modified]
3733                 if {$m || $GITGUI_BCK_exists} {
3734                         set msg [string trim [$ui_comm get 0.0 end]]
3735                         regsub -all -line {[ \r\t]+$} $msg {} msg
3736
3737                         if {$msg eq {}} {
3738                                 if {$GITGUI_BCK_exists} {
3739                                         catch {file delete [gitdir GITGUI_BCK]}
3740                                         set GITGUI_BCK_exists 0
3741                                 }
3742                         } elseif {$m} {
3743                                 catch {
3744                                         set fd [open [gitdir GITGUI_BCK] w]
3745                                         puts -nonewline $fd $msg
3746                                         close $fd
3747                                         set GITGUI_BCK_exists 1
3748                                 }
3749                         }
3750
3751                         $ui_comm edit modified false
3752                 }
3753
3754                 set ::GITGUI_BCK_i [after 2000 backup_commit_buffer]
3755         }
3756
3757         backup_commit_buffer
3758
3759         # -- If the user has aspell available we can drive it
3760         #    in pipe mode to spellcheck the commit message.
3761         #
3762         set spell_cmd [list |]
3763         set spell_dict [get_config gui.spellingdictionary]
3764         lappend spell_cmd aspell
3765         if {$spell_dict ne {}} {
3766                 lappend spell_cmd --master=$spell_dict
3767         }
3768         lappend spell_cmd --mode=none
3769         lappend spell_cmd --encoding=utf-8
3770         lappend spell_cmd pipe
3771         if {$spell_dict eq {none}
3772          || [catch {set spell_fd [open $spell_cmd r+]} spell_err]} {
3773                 bind_button3 $ui_comm [list tk_popup $ui_comm_ctxm %X %Y]
3774         } else {
3775                 set ui_comm_spell [spellcheck::init \
3776                         $spell_fd \
3777                         $ui_comm \
3778                         $ui_comm_ctxm \
3779                 ]
3780         }
3781         unset -nocomplain spell_cmd spell_fd spell_err spell_dict
3782 }
3783
3784 lock_index begin-read
3785 if {![winfo ismapped .]} {
3786         wm deiconify .
3787 }
3788 after 1 {
3789         if {[is_enabled initialamend]} {
3790                 force_amend
3791         } else {
3792                 do_rescan
3793         }
3794
3795         if {[is_enabled nocommitmsg]} {
3796                 $ui_comm configure -state disabled -background gray
3797         }
3798 }
3799 if {[is_enabled multicommit]} {
3800         after 1000 hint_gc
3801 }
3802 if {[is_enabled retcode]} {
3803         bind . <Destroy> {+terminate_me %W}
3804 }
3805 if {$picked && [is_config_true gui.autoexplore]} {
3806         do_explore
3807 }
3808
3809 # Local variables:
3810 # mode: tcl
3811 # indent-tabs-mode: t
3812 # tab-width: 4
3813 # End: