git-gui/git-gui.sh

   1 #!/bin/sh
   2 # Tcl ignores the next line -*- tcl -*- \
   3  if test "z$*" = zversion \
   4  || test "z$*" = z--version; \
   5  then \
   6         echo 'git-gui version @@GITGUI_VERSION@@'; \
   7         exit; \
   8  fi; \
   9  argv0=$0; \
  10  exec wish "$argv0" -- "$@"
  11
  12 set appvers {@@GITGUI_VERSION@@}
  13 set copyright [string map [list (c) \u00a9] {
  14 Copyright (c) 2006-2010 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 if { [info exists ::env(GIT_GUI_LIB_DIR) ] } {
  53         set oguilib $::env(GIT_GUI_LIB_DIR)
  54 } else {
  55         set oguilib {@@GITGUI_LIBDIR@@}
  56 }
  57 set oguirel {@@GITGUI_RELATIVE@@}
  58 if {$oguirel eq {1}} {
  59         set oguilib [file dirname [file normalize $argv0]]
  60         if {[file tail $oguilib] eq {git-core}} {
  61                 set oguilib [file dirname $oguilib]
  62         }
  63         set oguilib [file dirname $oguilib]
  64         set oguilib [file join $oguilib share git-gui lib]
  65         set oguimsg [file join $oguilib msgs]
  66 } elseif {[string match @@* $oguirel]} {
  67         set oguilib [file join [file dirname [file normalize $argv0]] lib]
  68         set oguimsg [file join [file dirname [file normalize $argv0]] po]
  69 } else {
  70         set oguimsg [file join $oguilib msgs]
  71 }
  72 unset oguirel
  73
  74 ######################################################################
  75 ##
  76 ## enable verbose loading?
  77
  78 if {![catch {set _verbose $env(GITGUI_VERBOSE)}]} {
  79         unset _verbose
  80         rename auto_load real__auto_load
  81         proc auto_load {name args} {
  82                 puts stderr "auto_load $name"
  83                 return [uplevel 1 real__auto_load $name $args]
  84         }
  85         rename source real__source
  86         proc source {args} {
  87                 puts stderr "source    $args"
  88                 uplevel 1 [linsert $args 0 real__source]
  89         }
  90         if {[tk windowingsystem] eq "win32"} { console show }
  91 }
  92
  93 ######################################################################
  94 ##
  95 ## Internationalization (i18n) through msgcat and gettext. See
  96 ## http://www.gnu.org/software/gettext/manual/html_node/Tcl.html
  97
  98 package require msgcat
  99
 100 # Check for Windows 7 MUI language pack (missed by msgcat < 1.4.4)
 101 if {[tk windowingsystem] eq "win32"
 102         && [package vcompare [package provide msgcat] 1.4.4] < 0
 103 } then {
 104         proc _mc_update_locale {} {
 105                 set key {HKEY_CURRENT_USER\Control Panel\Desktop}
 106                 if {![catch {
 107                         package require registry
 108                         set uilocale [registry get $key "PreferredUILanguages"]
 109                         msgcat::ConvertLocale [string map {- _} [lindex $uilocale 0]]
 110                 } uilocale]} {
 111                         if {[string length $uilocale] > 0} {
 112                                 msgcat::mclocale $uilocale
 113                         }
 114                 }
 115         }
 116         _mc_update_locale
 117 }
 118
 119 proc _mc_trim {fmt} {
 120         set cmk [string first @@ $fmt]
 121         if {$cmk > 0} {
 122                 return [string range $fmt 0 [expr {$cmk - 1}]]
 123         }
 124         return $fmt
 125 }
 126
 127 proc mc {en_fmt args} {
 128         set fmt [_mc_trim [::msgcat::mc $en_fmt]]
 129         if {[catch {set msg [eval [list format $fmt] $args]} err]} {
 130                 set msg [eval [list format [_mc_trim $en_fmt]] $args]
 131         }
 132         return $msg
 133 }
 134
 135 proc strcat {args} {
 136         return [join $args {}]
 137 }
 138
 139 ::msgcat::mcload $oguimsg
 140 unset oguimsg
 141
 142 ######################################################################
 143 ##
 144 ## On Mac, bring the current Wish process window to front
 145
 146 if {[tk windowingsystem] eq "aqua"} {
 147         catch {
 148                 exec osascript -e [format {
 149                         tell application "System Events"
 150                                 set frontmost of processes whose unix id is %d to true
 151                         end tell
 152                 } [pid]]
 153         }
 154 }
 155
 156 ######################################################################
 157 ##
 158 ## read only globals
 159
 160 set _appname {Git Gui}
 161 set _gitdir {}
 162 set _gitworktree {}
 163 set _isbare {}
 164 set _gitexec {}
 165 set _githtmldir {}
 166 set _reponame {}
 167 set _iscygwin {}
 168 set _search_path {}
 169 set _shellpath {@@SHELL_PATH@@}
 170
 171 set _trace [lsearch -exact $argv --trace]
 172 if {$_trace >= 0} {
 173         set argv [lreplace $argv $_trace $_trace]
 174         set _trace 1
 175         if {[tk windowingsystem] eq "win32"} { console show }
 176 } else {
 177         set _trace 0
 178 }
 179
 180 # variable for the last merged branch (useful for a default when deleting
 181 # branches).
 182 set _last_merged_branch {}
 183
 184 proc shellpath {} {
 185         global _shellpath env
 186         if {[string match @@* $_shellpath]} {
 187                 if {[info exists env(SHELL)]} {
 188                         return $env(SHELL)
 189                 } else {
 190                         return /bin/sh
 191                 }
 192         }
 193         return $_shellpath
 194 }
 195
 196 proc appname {} {
 197         global _appname
 198         return $_appname
 199 }
 200
 201 proc gitdir {args} {
 202         global _gitdir
 203         if {$args eq {}} {
 204                 return $_gitdir
 205         }
 206         return [eval [list file join $_gitdir] $args]
 207 }
 208
 209 proc gitexec {args} {
 210         global _gitexec
 211         if {$_gitexec eq {}} {
 212                 if {[catch {set _gitexec [git --exec-path]} err]} {
 213                         error "Git not installed?\n\n$err"
 214                 }
 215                 if {[is_Cygwin]} {
 216                         set _gitexec [exec cygpath \
 217                                 --windows \
 218                                 --absolute \
 219                                 $_gitexec]
 220                 } else {
 221                         set _gitexec [file normalize $_gitexec]
 222                 }
 223         }
 224         if {$args eq {}} {
 225                 return $_gitexec
 226         }
 227         return [eval [list file join $_gitexec] $args]
 228 }
 229
 230 proc githtmldir {args} {
 231         global _githtmldir
 232         if {$_githtmldir eq {}} {
 233                 if {[catch {set _githtmldir [git --html-path]}]} {
 234                         # Git not installed or option not yet supported
 235                         return {}
 236                 }
 237                 if {[is_Cygwin]} {
 238                         set _githtmldir [exec cygpath \
 239                                 --windows \
 240                                 --absolute \
 241                                 $_githtmldir]
 242                 } else {
 243                         set _githtmldir [file normalize $_githtmldir]
 244                 }
 245         }
 246         if {$args eq {}} {
 247                 return $_githtmldir
 248         }
 249         return [eval [list file join $_githtmldir] $args]
 250 }
 251
 252 proc reponame {} {
 253         return $::_reponame
 254 }
 255
 256 proc is_MacOSX {} {
 257         if {[tk windowingsystem] eq {aqua}} {
 258                 return 1
 259         }
 260         return 0
 261 }
 262
 263 proc is_Windows {} {
 264         if {$::tcl_platform(platform) eq {windows}} {
 265                 return 1
 266         }
 267         return 0
 268 }
 269
 270 proc is_Cygwin {} {
 271         global _iscygwin
 272         if {$_iscygwin eq {}} {
 273                 if {$::tcl_platform(platform) eq {windows}} {
 274                         if {[catch {set p [exec cygpath --windir]} err]} {
 275                                 set _iscygwin 0
 276                         } else {
 277                                 set _iscygwin 1
 278                         }
 279                 } else {
 280                         set _iscygwin 0
 281                 }
 282         }
 283         return $_iscygwin
 284 }
 285
 286 proc is_enabled {option} {
 287         global enabled_options
 288         if {[catch {set on $enabled_options($option)}]} {return 0}
 289         return $on
 290 }
 291
 292 proc enable_option {option} {
 293         global enabled_options
 294         set enabled_options($option) 1
 295 }
 296
 297 proc disable_option {option} {
 298         global enabled_options
 299         set enabled_options($option) 0
 300 }
 301
 302 ######################################################################
 303 ##
 304 ## config
 305
 306 proc is_many_config {name} {
 307         switch -glob -- $name {
 308         gui.recentrepo -
 309         remote.*.fetch -
 310         remote.*.push
 311                 {return 1}
 312         *
 313                 {return 0}
 314         }
 315 }
 316
 317 proc is_config_true {name} {
 318         global repo_config
 319         if {[catch {set v $repo_config($name)}]} {
 320                 return 0
 321         }
 322         set v [string tolower $v]
 323         if {$v eq {} || $v eq {true} || $v eq {1} || $v eq {yes} || $v eq {on}} {
 324                 return 1
 325         } else {
 326                 return 0
 327         }
 328 }
 329
 330 proc is_config_false {name} {
 331         global repo_config
 332         if {[catch {set v $repo_config($name)}]} {
 333                 return 0
 334         }
 335         set v [string tolower $v]
 336         if {$v eq {false} || $v eq {0} || $v eq {no} || $v eq {off}} {
 337                 return 1
 338         } else {
 339                 return 0
 340         }
 341 }
 342
 343 proc get_config {name} {
 344         global repo_config
 345         if {[catch {set v $repo_config($name)}]} {
 346                 return {}
 347         } else {
 348                 return $v
 349         }
 350 }
 351
 352 proc is_bare {} {
 353         global _isbare
 354         global _gitdir
 355         global _gitworktree
 356
 357         if {$_isbare eq {}} {
 358                 if {[catch {
 359                         set _bare [git rev-parse --is-bare-repository]
 360                         switch  -- $_bare {
 361                         true { set _isbare 1 }
 362                         false { set _isbare 0}
 363                         default { throw }
 364                         }
 365                 }]} {
 366                         if {[is_config_true core.bare]
 367                                 || ($_gitworktree eq {}
 368                                         && [lindex [file split $_gitdir] end] ne {.git})} {
 369                                 set _isbare 1
 370                         } else {
 371                                 set _isbare 0
 372                         }
 373                 }
 374         }
 375         return $_isbare
 376 }
 377
 378 ######################################################################
 379 ##
 380 ## handy utils
 381
 382 proc _trace_exec {cmd} {
 383         if {!$::_trace} return
 384         set d {}
 385         foreach v $cmd {
 386                 if {$d ne {}} {
 387                         append d { }
 388                 }
 389                 if {[regexp {[ \t\r\n'"$?*]} $v]} {
 390                         set v [sq $v]
 391                 }
 392                 append d $v
 393         }
 394         puts stderr $d
 395 }
 396
 397 #'"  fix poor old emacs font-lock mode
 398
 399 proc _git_cmd {name} {
 400         global _git_cmd_path
 401
 402         if {[catch {set v $_git_cmd_path($name)}]} {
 403                 switch -- $name {
 404                   version   -
 405                 --version   -
 406                 --exec-path { return [list $::_git $name] }
 407                 }
 408
 409                 set p [gitexec git-$name$::_search_exe]
 410                 if {[file exists $p]} {
 411                         set v [list $p]
 412                 } elseif {[is_Windows] && [file exists [gitexec git-$name]]} {
 413                         # Try to determine what sort of magic will make
 414                         # git-$name go and do its thing, because native
 415                         # Tcl on Windows doesn't know it.
 416                         #
 417                         set p [gitexec git-$name]
 418                         set f [open $p r]
 419                         set s [gets $f]
 420                         close $f
 421
 422                         switch -glob -- [lindex $s 0] {
 423                         #!*sh     { set i sh     }
 424                         #!*perl   { set i perl   }
 425                         #!*python { set i python }
 426                         default   { error "git-$name is not supported: $s" }
 427                         }
 428
 429                         upvar #0 _$i interp
 430                         if {![info exists interp]} {
 431                                 set interp [_which $i]
 432                         }
 433                         if {$interp eq {}} {
 434                                 error "git-$name requires $i (not in PATH)"
 435                         }
 436                         set v [concat [list $interp] [lrange $s 1 end] [list $p]]
 437                 } else {
 438                         # Assume it is builtin to git somehow and we
 439                         # aren't actually able to see a file for it.
 440                         #
 441                         set v [list $::_git $name]
 442                 }
 443                 set _git_cmd_path($name) $v
 444         }
 445         return $v
 446 }
 447
 448 proc _which {what args} {
 449         global env _search_exe _search_path
 450
 451         if {$_search_path eq {}} {
 452                 if {[is_Cygwin] && [regexp {^(/|\.:)} $env(PATH)]} {
 453                         set _search_path [split [exec cygpath \
 454                                 --windows \
 455                                 --path \
 456                                 --absolute \
 457                                 $env(PATH)] {;}]
 458                         set _search_exe .exe
 459                 } elseif {[is_Windows]} {
 460                         set gitguidir [file dirname [info script]]
 461                         regsub -all ";" $gitguidir "\\;" gitguidir
 462                         set env(PATH) "$gitguidir;$env(PATH)"
 463                         set _search_path [split $env(PATH) {;}]
 464                         set _search_exe .exe
 465                 } else {
 466                         set _search_path [split $env(PATH) :]
 467                         set _search_exe {}
 468                 }
 469         }
 470
 471         if {[is_Windows] && [lsearch -exact $args -script] >= 0} {
 472                 set suffix {}
 473         } else {
 474                 set suffix $_search_exe
 475         }
 476
 477         foreach p $_search_path {
 478                 set p [file join $p $what$suffix]
 479                 if {[file exists $p]} {
 480                         return [file normalize $p]
 481                 }
 482         }
 483         return {}
 484 }
 485
 486 # Test a file for a hashbang to identify executable scripts on Windows.
 487 proc is_shellscript {filename} {
 488         if {![file exists $filename]} {return 0}
 489         set f [open $filename r]
 490         fconfigure $f -encoding binary
 491         set magic [read $f 2]
 492         close $f
 493         return [expr {$magic eq "#!"}]
 494 }
 495
 496 # Run a command connected via pipes on stdout.
 497 # This is for use with textconv filters and uses sh -c "..." to allow it to
 498 # contain a command with arguments. On windows we must check for shell
 499 # scripts specifically otherwise just call the filter command.
 500 proc open_cmd_pipe {cmd path} {
 501         global env
 502         if {![file executable [shellpath]]} {
 503                 set exe [auto_execok [lindex $cmd 0]]
 504                 if {[is_shellscript [lindex $exe 0]]} {
 505                         set run [linsert [auto_execok sh] end -c "$cmd \"\$0\"" $path]
 506                 } else {
 507                         set run [concat $exe [lrange $cmd 1 end] $path]
 508                 }
 509         } else {
 510                 set run [list [shellpath] -c "$cmd \"\$0\"" $path]
 511         }
 512         return [open |$run r]
 513 }
 514
 515 proc _lappend_nice {cmd_var} {
 516         global _nice
 517         upvar $cmd_var cmd
 518
 519         if {![info exists _nice]} {
 520                 set _nice [_which nice]
 521                 if {[catch {exec $_nice git version}]} {
 522                         set _nice {}
 523                 } elseif {[is_Windows] && [file dirname $_nice] ne [file dirname $::_git]} {
 524                         set _nice {}
 525                 }
 526         }
 527         if {$_nice ne {}} {
 528                 lappend cmd $_nice
 529         }
 530 }
 531
 532 proc git {args} {
 533         set opt [list]
 534
 535         while {1} {
 536                 switch -- [lindex $args 0] {
 537                 --nice {
 538                         _lappend_nice opt
 539                 }
 540
 541                 default {
 542                         break
 543                 }
 544
 545                 }
 546
 547                 set args [lrange $args 1 end]
 548         }
 549
 550         set cmdp [_git_cmd [lindex $args 0]]
 551         set args [lrange $args 1 end]
 552
 553         _trace_exec [concat $opt $cmdp $args]
 554         set result [eval exec $opt $cmdp $args]
 555         if {$::_trace} {
 556                 puts stderr "< $result"
 557         }
 558         return $result
 559 }
 560
 561 proc _open_stdout_stderr {cmd} {
 562         _trace_exec $cmd
 563         if {[catch {
 564                         set fd [open [concat [list | ] $cmd] r]
 565                 } err]} {
 566                 if {   [lindex $cmd end] eq {2>@1}
 567                     && $err eq {can not find channel named "1"}
 568                         } {
 569                         # Older versions of Tcl 8.4 don't have this 2>@1 IO
 570                         # redirect operator.  Fallback to |& cat for those.
 571                         # The command was not actually started, so its safe
 572                         # to try to start it a second time.
 573                         #
 574                         set fd [open [concat \
 575                                 [list | ] \
 576                                 [lrange $cmd 0 end-1] \
 577                                 [list |& cat] \
 578                                 ] r]
 579                 } else {
 580                         error $err
 581                 }
 582         }
 583         fconfigure $fd -eofchar {}
 584         return $fd
 585 }
 586
 587 proc git_read {args} {
 588         set opt [list]
 589
 590         while {1} {
 591                 switch -- [lindex $args 0] {
 592                 --nice {
 593                         _lappend_nice opt
 594                 }
 595
 596                 --stderr {
 597                         lappend args 2>@1
 598                 }
 599
 600                 default {
 601                         break
 602                 }
 603
 604                 }
 605
 606                 set args [lrange $args 1 end]
 607         }
 608
 609         set cmdp [_git_cmd [lindex $args 0]]
 610         set args [lrange $args 1 end]
 611
 612         return [_open_stdout_stderr [concat $opt $cmdp $args]]
 613 }
 614
 615 proc git_write {args} {
 616         set opt [list]
 617
 618         while {1} {
 619                 switch -- [lindex $args 0] {
 620                 --nice {
 621                         _lappend_nice opt
 622                 }
 623
 624                 default {
 625                         break
 626                 }
 627
 628                 }
 629
 630                 set args [lrange $args 1 end]
 631         }
 632
 633         set cmdp [_git_cmd [lindex $args 0]]
 634         set args [lrange $args 1 end]
 635
 636         _trace_exec [concat $opt $cmdp $args]
 637         return [open [concat [list | ] $opt $cmdp $args] w]
 638 }
 639
 640 proc githook_read {hook_name args} {
 641         set pchook [gitdir hooks $hook_name]
 642         lappend args 2>@1
 643
 644         # On Windows [file executable] might lie so we need to ask
 645         # the shell if the hook is executable.  Yes that's annoying.
 646         #
 647         if {[is_Windows]} {
 648                 upvar #0 _sh interp
 649                 if {![info exists interp]} {
 650                         set interp [_which sh]
 651                 }
 652                 if {$interp eq {}} {
 653                         error "hook execution requires sh (not in PATH)"
 654                 }
 655
 656                 set scr {if test -x "$1";then exec "$@";fi}
 657                 set sh_c [list $interp -c $scr $interp $pchook]
 658                 return [_open_stdout_stderr [concat $sh_c $args]]
 659         }
 660
 661         if {[file executable $pchook]} {
 662                 return [_open_stdout_stderr [concat [list $pchook] $args]]
 663         }
 664
 665         return {}
 666 }
 667
 668 proc kill_file_process {fd} {
 669         set process [pid $fd]
 670
 671         catch {
 672                 if {[is_Windows]} {
 673                         exec taskkill /pid $process
 674                 } else {
 675                         exec kill $process
 676                 }
 677         }
 678 }
 679
 680 proc gitattr {path attr default} {
 681         if {[catch {set r [git check-attr $attr -- $path]}]} {
 682                 set r unspecified
 683         } else {
 684                 set r [join [lrange [split $r :] 2 end] :]
 685                 regsub {^ } $r {} r
 686         }
 687         if {$r eq {unspecified}} {
 688                 return $default
 689         }
 690         return $r
 691 }
 692
 693 proc sq {value} {
 694         regsub -all ' $value "'\\''" value
 695         return "'$value'"
 696 }
 697
 698 proc load_current_branch {} {
 699         global current_branch is_detached
 700
 701         set fd [open [gitdir HEAD] r]
 702         if {[gets $fd ref] < 1} {
 703                 set ref {}
 704         }
 705         close $fd
 706
 707         set pfx {ref: refs/heads/}
 708         set len [string length $pfx]
 709         if {[string equal -length $len $pfx $ref]} {
 710                 # We're on a branch.  It might not exist.  But
 711                 # HEAD looks good enough to be a branch.
 712                 #
 713                 set current_branch [string range $ref $len end]
 714                 set is_detached 0
 715         } else {
 716                 # Assume this is a detached head.
 717                 #
 718                 set current_branch HEAD
 719                 set is_detached 1
 720         }
 721 }
 722
 723 auto_load tk_optionMenu
 724 rename tk_optionMenu real__tkOptionMenu
 725 proc tk_optionMenu {w varName args} {
 726         set m [eval real__tkOptionMenu $w $varName $args]
 727         $m configure -font font_ui
 728         $w configure -font font_ui
 729         return $m
 730 }
 731
 732 proc rmsel_tag {text} {
 733         $text tag conf sel \
 734                 -background [$text cget -background] \
 735                 -foreground [$text cget -foreground] \
 736                 -borderwidth 0
 737         $text tag conf in_sel -background lightgray
 738         bind $text <Motion> break
 739         return $text
 740 }
 741
 742 wm withdraw .
 743 set root_exists 0
 744 bind . <Visibility> {
 745         bind . <Visibility> {}
 746         set root_exists 1
 747 }
 748
 749 if {[is_Windows]} {
 750         wm iconbitmap . -default $oguilib/git-gui.ico
 751         set ::tk::AlwaysShowSelection 1
 752         bind . <Control-F2> {console show}
 753
 754         # Spoof an X11 display for SSH
 755         if {![info exists env(DISPLAY)]} {
 756                 set env(DISPLAY) :9999
 757         }
 758 } else {
 759         catch {
 760                 image create photo gitlogo -width 16 -height 16
 761
 762                 gitlogo put #33CC33 -to  7  0  9  2
 763                 gitlogo put #33CC33 -to  4  2 12  4
 764                 gitlogo put #33CC33 -to  7  4  9  6
 765                 gitlogo put #CC3333 -to  4  6 12  8
 766                 gitlogo put gray26  -to  4  9  6 10
 767                 gitlogo put gray26  -to  3 10  6 12
 768                 gitlogo put gray26  -to  8  9 13 11
 769                 gitlogo put gray26  -to  8 11 10 12
 770                 gitlogo put gray26  -to 11 11 13 14
 771                 gitlogo put gray26  -to  3 12  5 14
 772                 gitlogo put gray26  -to  5 13
 773                 gitlogo put gray26  -to 10 13
 774                 gitlogo put gray26  -to  4 14 12 15
 775                 gitlogo put gray26  -to  5 15 11 16
 776                 gitlogo redither
 777
 778                 image create photo gitlogo32 -width 32 -height 32
 779                 gitlogo32 copy gitlogo -zoom 2 2
 780
 781                 wm iconphoto . -default gitlogo gitlogo32
 782         }
 783 }
 784
 785 ######################################################################
 786 ##
 787 ## config defaults
 788
 789 set cursor_ptr arrow
 790 font create font_ui
 791 if {[lsearch -exact [font names] TkDefaultFont] != -1} {
 792         eval [linsert [font actual TkDefaultFont] 0 font configure font_ui]
 793         eval [linsert [font actual TkFixedFont] 0 font create font_diff]
 794 } else {
 795         font create font_diff -family Courier -size 10
 796         catch {
 797                 label .dummy
 798                 eval font configure font_ui [font actual [.dummy cget -font]]
 799                 destroy .dummy
 800         }
 801 }
 802
 803 font create font_uiitalic
 804 font create font_uibold
 805 font create font_diffbold
 806 font create font_diffitalic
 807
 808 foreach class {Button Checkbutton Entry Label
 809                 Labelframe Listbox Message
 810                 Radiobutton Spinbox Text} {
 811         option add *$class.font font_ui
 812 }
 813 if {![is_MacOSX]} {
 814         option add *Menu.font font_ui
 815         option add *Entry.borderWidth 1 startupFile
 816         option add *Entry.relief sunken startupFile
 817         option add *RadioButton.anchor w startupFile
 818 }
 819 unset class
 820
 821 if {[is_Windows] || [is_MacOSX]} {
 822         option add *Menu.tearOff 0
 823 }
 824
 825 if {[is_MacOSX]} {
 826         set M1B M1
 827         set M1T Cmd
 828 } else {
 829         set M1B Control
 830         set M1T Ctrl
 831 }
 832
 833 proc bind_button3 {w cmd} {
 834         bind $w <Any-Button-3> $cmd
 835         if {[is_MacOSX]} {
 836                 # Mac OS X sends Button-2 on right click through three-button mouse,
 837                 # or through trackpad right-clicking (two-finger touch + click).
 838                 bind $w <Any-Button-2> $cmd
 839                 bind $w <Control-Button-1> $cmd
 840         }
 841 }
 842
 843 proc apply_config {} {
 844         global repo_config font_descs
 845
 846         foreach option $font_descs {
 847                 set name [lindex $option 0]
 848                 set font [lindex $option 1]
 849                 if {[catch {
 850                         set need_weight 1
 851                         foreach {cn cv} $repo_config(gui.$name) {
 852                                 if {$cn eq {-weight}} {
 853                                         set need_weight 0
 854                                 }
 855                                 font configure $font $cn $cv
 856                         }
 857                         if {$need_weight} {
 858                                 font configure $font -weight normal
 859                         }
 860                         } err]} {
 861                         error_popup [strcat [mc "Invalid font specified in %s:" "gui.$name"] "\n\n$err"]
 862                 }
 863                 foreach {cn cv} [font configure $font] {
 864                         font configure ${font}bold $cn $cv
 865                         font configure ${font}italic $cn $cv
 866                 }
 867                 font configure ${font}bold -weight bold
 868                 font configure ${font}italic -slant italic
 869         }
 870
 871         global use_ttk NS
 872         set use_ttk 0
 873         set NS {}
 874         if {$repo_config(gui.usettk)} {
 875                 set use_ttk [package vsatisfies [package provide Tk] 8.5]
 876                 if {$use_ttk} {
 877                         set NS ttk
 878                         bind [winfo class .] <<ThemeChanged>> [list InitTheme]
 879                         pave_toplevel .
 880                 }
 881         }
 882 }
 883
 884 set default_config(branch.autosetupmerge) true
 885 set default_config(merge.tool) {}
 886 set default_config(mergetool.keepbackup) true
 887 set default_config(merge.diffstat) true
 888 set default_config(merge.summary) false
 889 set default_config(merge.verbosity) 2
 890 set default_config(user.name) {}
 891 set default_config(user.email) {}
 892
 893 set default_config(gui.encoding) [encoding system]
 894 set default_config(gui.matchtrackingbranch) false
 895 set default_config(gui.textconv) true
 896 set default_config(gui.pruneduringfetch) false
 897 set default_config(gui.trustmtime) false
 898 set default_config(gui.fastcopyblame) false
 899 set default_config(gui.maxrecentrepo) 10
 900 set default_config(gui.copyblamethreshold) 40
 901 set default_config(gui.blamehistoryctx) 7
 902 set default_config(gui.diffcontext) 5
 903 set default_config(gui.diffopts) {}
 904 set default_config(gui.commitmsgwidth) 75
 905 set default_config(gui.newbranchtemplate) {}
 906 set default_config(gui.spellingdictionary) {}
 907 set default_config(gui.fontui) [font configure font_ui]
 908 set default_config(gui.fontdiff) [font configure font_diff]
 909 # TODO: this option should be added to the git-config documentation
 910 set default_config(gui.maxfilesdisplayed) 5000
 911 set default_config(gui.usettk) 1
 912 set default_config(gui.warndetachedcommit) 1
 913 set default_config(gui.tabsize) 8
 914 set font_descs {
 915         {fontui   font_ui   {mc "Main Font"}}
 916         {fontdiff font_diff {mc "Diff/Console Font"}}
 917 }
 918 set default_config(gui.stageuntracked) ask
 919 set default_config(gui.displayuntracked) true
 920
 921 ######################################################################
 922 ##
 923 ## find git
 924
 925 set _git  [_which git]
 926 if {$_git eq {}} {
 927         catch {wm withdraw .}
 928         tk_messageBox \
 929                 -icon error \
 930                 -type ok \
 931                 -title [mc "git-gui: fatal error"] \
 932                 -message [mc "Cannot find git in PATH."]
 933         exit 1
 934 }
 935
 936 ######################################################################
 937 ##
 938 ## version check
 939
 940 if {[catch {set _git_version [git --version]} err]} {
 941         catch {wm withdraw .}
 942         tk_messageBox \
 943                 -icon error \
 944                 -type ok \
 945                 -title [mc "git-gui: fatal error"] \
 946                 -message "Cannot determine Git version:
 947
 948 $err
 949
 950 [appname] requires Git 1.5.0 or later."
 951         exit 1
 952 }
 953 if {![regsub {^git version } $_git_version {} _git_version]} {
 954         catch {wm withdraw .}
 955         tk_messageBox \
 956                 -icon error \
 957                 -type ok \
 958                 -title [mc "git-gui: fatal error"] \
 959                 -message [strcat [mc "Cannot parse Git version string:"] "\n\n$_git_version"]
 960         exit 1
 961 }
 962
 963 proc get_trimmed_version {s} {
 964     set r {}
 965     foreach x [split $s -._] {
 966         if {[string is integer -strict $x]} {
 967             lappend r $x
 968         } else {
 969             break
 970         }
 971     }
 972     return [join $r .]
 973 }
 974 set _real_git_version $_git_version
 975 set _git_version [get_trimmed_version $_git_version]
 976
 977 if {![regexp {^[1-9]+(\.[0-9]+)+$} $_git_version]} {
 978         catch {wm withdraw .}
 979         if {[tk_messageBox \
 980                 -icon warning \
 981                 -type yesno \
 982                 -default no \
 983                 -title "[appname]: warning" \
 984                  -message [mc "Git version cannot be determined.
 985
 986 %s claims it is version '%s'.
 987
 988 %s requires at least Git 1.5.0 or later.
 989
 990 Assume '%s' is version 1.5.0?
 991 " $_git $_real_git_version [appname] $_real_git_version]] eq {yes}} {
 992                 set _git_version 1.5.0
 993         } else {
 994                 exit 1
 995         }
 996 }
 997 unset _real_git_version
 998
 999 proc git-version {args} {
1000         global _git_version
1001
1002         switch [llength $args] {
1003         0 {
1004                 return $_git_version
1005         }
1006
1007         2 {
1008                 set op [lindex $args 0]
1009                 set vr [lindex $args 1]
1010                 set cm [package vcompare $_git_version $vr]
1011                 return [expr $cm $op 0]
1012         }
1013
1014         4 {
1015                 set type [lindex $args 0]
1016                 set name [lindex $args 1]
1017                 set parm [lindex $args 2]
1018                 set body [lindex $args 3]
1019
1020                 if {($type ne {proc} && $type ne {method})} {
1021                         error "Invalid arguments to git-version"
1022                 }
1023                 if {[llength $body] < 2 || [lindex $body end-1] ne {default}} {
1024                         error "Last arm of $type $name must be default"
1025                 }
1026
1027                 foreach {op vr cb} [lrange $body 0 end-2] {
1028                         if {[git-version $op $vr]} {
1029                                 return [uplevel [list $type $name $parm $cb]]
1030                         }
1031                 }
1032
1033                 return [uplevel [list $type $name $parm [lindex $body end]]]
1034         }
1035
1036         default {
1037                 error "git-version >= x"
1038         }
1039
1040         }
1041 }
1042
1043 if {[git-version < 1.5]} {
1044         catch {wm withdraw .}
1045         tk_messageBox \
1046                 -icon error \
1047                 -type ok \
1048                 -title [mc "git-gui: fatal error"] \
1049                 -message "[appname] requires Git 1.5.0 or later.
1050
1051 You are using [git-version]:
1052
1053 [git --version]"
1054         exit 1
1055 }
1056
1057 ######################################################################
1058 ##
1059 ## configure our library
1060
1061 set idx [file join $oguilib tclIndex]
1062 if {[catch {set fd [open $idx r]} err]} {
1063         catch {wm withdraw .}
1064         tk_messageBox \
1065                 -icon error \
1066                 -type ok \
1067                 -title [mc "git-gui: fatal error"] \
1068                 -message $err
1069         exit 1
1070 }
1071 if {[gets $fd] eq {# Autogenerated by git-gui Makefile}} {
1072         set idx [list]
1073         while {[gets $fd n] >= 0} {
1074                 if {$n ne {} && ![string match #* $n]} {
1075                         lappend idx $n
1076                 }
1077         }
1078 } else {
1079         set idx {}
1080 }
1081 close $fd
1082
1083 if {$idx ne {}} {
1084         set loaded [list]
1085         foreach p $idx {
1086                 if {[lsearch -exact $loaded $p] >= 0} continue
1087                 source [file join $oguilib $p]
1088                 lappend loaded $p
1089         }
1090         unset loaded p
1091 } else {
1092         set auto_path [concat [list $oguilib] $auto_path]
1093 }
1094 unset -nocomplain idx fd
1095
1096 ######################################################################
1097 ##
1098 ## config file parsing
1099
1100 git-version proc _parse_config {arr_name args} {
1101         >= 1.5.3 {
1102                 upvar $arr_name arr
1103                 array unset arr
1104                 set buf {}
1105                 catch {
1106                         set fd_rc [eval \
1107                                 [list git_read config] \
1108                                 $args \
1109                                 [list --null --list]]
1110                         fconfigure $fd_rc -translation binary
1111                         set buf [read $fd_rc]
1112                         close $fd_rc
1113                 }
1114                 foreach line [split $buf "\0"] {
1115                         if {[regexp {^([^\n]+)\n(.*)$} $line line name value]} {
1116                                 if {[is_many_config $name]} {
1117                                         lappend arr($name) $value
1118                                 } else {
1119                                         set arr($name) $value
1120                                 }
1121                         } elseif {[regexp {^([^\n]+)$} $line line name]} {
1122                                 # no value given, but interpreting them as
1123                                 # boolean will be handled as true
1124                                 set arr($name) {}
1125                         }
1126                 }
1127         }
1128         default {
1129                 upvar $arr_name arr
1130                 array unset arr
1131                 catch {
1132                         set fd_rc [eval [list git_read config --list] $args]
1133                         while {[gets $fd_rc line] >= 0} {
1134                                 if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
1135                                         if {[is_many_config $name]} {
1136                                                 lappend arr($name) $value
1137                                         } else {
1138                                                 set arr($name) $value
1139                                         }
1140                                 } elseif {[regexp {^([^=]+)$} $line line name]} {
1141                                         # no value given, but interpreting them as
1142                                         # boolean will be handled as true
1143                                         set arr($name) {}
1144                                 }
1145                         }
1146                         close $fd_rc
1147                 }
1148         }
1149 }
1150
1151 proc load_config {include_global} {
1152         global repo_config global_config system_config default_config
1153
1154         if {$include_global} {
1155                 _parse_config system_config --system
1156                 _parse_config global_config --global
1157         }
1158         _parse_config repo_config
1159
1160         foreach name [array names default_config] {
1161                 if {[catch {set v $system_config($name)}]} {
1162                         set system_config($name) $default_config($name)
1163                 }
1164         }
1165         foreach name [array names system_config] {
1166                 if {[catch {set v $global_config($name)}]} {
1167                         set global_config($name) $system_config($name)
1168                 }
1169                 if {[catch {set v $repo_config($name)}]} {
1170                         set repo_config($name) $system_config($name)
1171                 }
1172         }
1173 }
1174
1175 ######################################################################
1176 ##
1177 ## feature option selection
1178
1179 if {[regexp {^git-(.+)$} [file tail $argv0] _junk subcommand]} {
1180         unset _junk
1181 } else {
1182         set subcommand gui
1183 }
1184 if {$subcommand eq {gui.sh}} {
1185         set subcommand gui
1186 }
1187 if {$subcommand eq {gui} && [llength $argv] > 0} {
1188         set subcommand [lindex $argv 0]
1189         set argv [lrange $argv 1 end]
1190 }
1191
1192 enable_option multicommit
1193 enable_option branch
1194 enable_option transport
1195 disable_option bare
1196
1197 switch -- $subcommand {
1198 browser -
1199 blame {
1200         enable_option bare
1201
1202         disable_option multicommit
1203         disable_option branch
1204         disable_option transport
1205 }
1206 citool {
1207         enable_option singlecommit
1208         enable_option retcode
1209
1210         disable_option multicommit
1211         disable_option branch
1212         disable_option transport
1213
1214         while {[llength $argv] > 0} {
1215                 set a [lindex $argv 0]
1216                 switch -- $a {
1217                 --amend {
1218                         enable_option initialamend
1219                 }
1220                 --nocommit {
1221                         enable_option nocommit
1222                         enable_option nocommitmsg
1223                 }
1224                 --commitmsg {
1225                         disable_option nocommitmsg
1226                 }
1227                 default {
1228                         break
1229                 }
1230                 }
1231
1232                 set argv [lrange $argv 1 end]
1233         }
1234 }
1235 }
1236
1237 ######################################################################
1238 ##
1239 ## execution environment
1240
1241 set have_tk85 [expr {[package vcompare $tk_version "8.5"] >= 0}]
1242
1243 # Suggest our implementation of askpass, if none is set
1244 if {![info exists env(SSH_ASKPASS)]} {
1245         set env(SSH_ASKPASS) [gitexec git-gui--askpass]
1246 }
1247
1248 ######################################################################
1249 ##
1250 ## repository setup
1251
1252 set picked 0
1253 if {[catch {
1254                 set _gitdir $env(GIT_DIR)
1255                 set _prefix {}
1256                 }]
1257         && [catch {
1258                 # beware that from the .git dir this sets _gitdir to .
1259                 # and _prefix to the empty string
1260                 set _gitdir [git rev-parse --git-dir]
1261                 set _prefix [git rev-parse --show-prefix]
1262         } err]} {
1263         load_config 1
1264         apply_config
1265         choose_repository::pick
1266         set picked 1
1267 }
1268
1269 # we expand the _gitdir when it's just a single dot (i.e. when we're being
1270 # run from the .git dir itself) lest the routines to find the worktree
1271 # get confused
1272 if {$_gitdir eq "."} {
1273         set _gitdir [pwd]
1274 }
1275
1276 if {![file isdirectory $_gitdir] && [is_Cygwin]} {
1277         catch {set _gitdir [exec cygpath --windows $_gitdir]}
1278 }
1279 if {![file isdirectory $_gitdir]} {
1280         catch {wm withdraw .}
1281         error_popup [strcat [mc "Git directory not found:"] "\n\n$_gitdir"]
1282         exit 1
1283 }
1284 # _gitdir exists, so try loading the config
1285 load_config 0
1286 apply_config
1287
1288 # v1.7.0 introduced --show-toplevel to return the canonical work-tree
1289 if {[package vcompare $_git_version 1.7.0] >= 0} {
1290         if { [is_Cygwin] } {
1291                 catch {set _gitworktree [exec cygpath --windows [git rev-parse --show-toplevel]]}
1292         } else {
1293                 set _gitworktree [git rev-parse --show-toplevel]
1294         }
1295 } else {
1296         # try to set work tree from environment, core.worktree or use
1297         # cdup to obtain a relative path to the top of the worktree. If
1298         # run from the top, the ./ prefix ensures normalize expands pwd.
1299         if {[catch { set _gitworktree $env(GIT_WORK_TREE) }]} {
1300                 set _gitworktree [get_config core.worktree]
1301                 if {$_gitworktree eq ""} {
1302                         set _gitworktree [file normalize ./[git rev-parse --show-cdup]]
1303                 }
1304         }
1305 }
1306
1307 if {$_prefix ne {}} {
1308         if {$_gitworktree eq {}} {
1309                 regsub -all {[^/]+/} $_prefix ../ cdup
1310         } else {
1311                 set cdup $_gitworktree
1312         }
1313         if {[catch {cd $cdup} err]} {
1314                 catch {wm withdraw .}
1315                 error_popup [strcat [mc "Cannot move to top of working directory:"] "\n\n$err"]
1316                 exit 1
1317         }
1318         set _gitworktree [pwd]
1319         unset cdup
1320 } elseif {![is_enabled bare]} {
1321         if {[is_bare]} {
1322                 catch {wm withdraw .}
1323                 error_popup [strcat [mc "Cannot use bare repository:"] "\n\n$_gitdir"]
1324                 exit 1
1325         }
1326         if {$_gitworktree eq {}} {
1327                 set _gitworktree [file dirname $_gitdir]
1328         }
1329         if {[catch {cd $_gitworktree} err]} {
1330                 catch {wm withdraw .}
1331                 error_popup [strcat [mc "No working directory"] " $_gitworktree:\n\n$err"]
1332                 exit 1
1333         }
1334         set _gitworktree [pwd]
1335 }
1336 set _reponame [file split [file normalize $_gitdir]]
1337 if {[lindex $_reponame end] eq {.git}} {
1338         set _reponame [lindex $_reponame end-1]
1339 } else {
1340         set _reponame [lindex $_reponame end]
1341 }
1342
1343 set env(GIT_DIR) $_gitdir
1344 set env(GIT_WORK_TREE) $_gitworktree
1345
1346 ######################################################################
1347 ##
1348 ## global init
1349
1350 set current_diff_path {}
1351 set current_diff_side {}
1352 set diff_actions [list]
1353
1354 set HEAD {}
1355 set PARENT {}
1356 set MERGE_HEAD [list]
1357 set commit_type {}
1358 set empty_tree {}
1359 set current_branch {}
1360 set is_detached 0
1361 set current_diff_path {}
1362 set is_3way_diff 0
1363 set is_submodule_diff 0
1364 set is_conflict_diff 0
1365 set selected_commit_type new
1366 set diff_empty_count 0
1367
1368 set nullid "0000000000000000000000000000000000000000"
1369 set nullid2 "0000000000000000000000000000000000000001"
1370
1371 ######################################################################
1372 ##
1373 ## task management
1374
1375 set rescan_active 0
1376 set diff_active 0
1377 set last_clicked {}
1378
1379 set disable_on_lock [list]
1380 set index_lock_type none
1381
1382 proc lock_index {type} {
1383         global index_lock_type disable_on_lock
1384
1385         if {$index_lock_type eq {none}} {
1386                 set index_lock_type $type
1387                 foreach w $disable_on_lock {
1388                         uplevel #0 $w disabled
1389                 }
1390                 return 1
1391         } elseif {$index_lock_type eq "begin-$type"} {
1392                 set index_lock_type $type
1393                 return 1
1394         }
1395         return 0
1396 }
1397
1398 proc unlock_index {} {
1399         global index_lock_type disable_on_lock
1400
1401         set index_lock_type none
1402         foreach w $disable_on_lock {
1403                 uplevel #0 $w normal
1404         }
1405 }
1406
1407 ######################################################################
1408 ##
1409 ## status
1410
1411 proc repository_state {ctvar hdvar mhvar} {
1412         global current_branch
1413         upvar $ctvar ct $hdvar hd $mhvar mh
1414
1415         set mh [list]
1416
1417         load_current_branch
1418         if {[catch {set hd [git rev-parse --verify HEAD]}]} {
1419                 set hd {}
1420                 set ct initial
1421                 return
1422         }
1423
1424         set merge_head [gitdir MERGE_HEAD]
1425         if {[file exists $merge_head]} {
1426                 set ct merge
1427                 set fd_mh [open $merge_head r]
1428                 while {[gets $fd_mh line] >= 0} {
1429                         lappend mh $line
1430                 }
1431                 close $fd_mh
1432                 return
1433         }
1434
1435         set ct normal
1436 }
1437
1438 proc PARENT {} {
1439         global PARENT empty_tree
1440
1441         set p [lindex $PARENT 0]
1442         if {$p ne {}} {
1443                 return $p
1444         }
1445         if {$empty_tree eq {}} {
1446                 set empty_tree [git mktree << {}]
1447         }
1448         return $empty_tree
1449 }
1450
1451 proc force_amend {} {
1452         global selected_commit_type
1453         global HEAD PARENT MERGE_HEAD commit_type
1454
1455         repository_state newType newHEAD newMERGE_HEAD
1456         set HEAD $newHEAD
1457         set PARENT $newHEAD
1458         set MERGE_HEAD $newMERGE_HEAD
1459         set commit_type $newType
1460
1461         set selected_commit_type amend
1462         do_select_commit_type
1463 }
1464
1465 proc rescan {after {honor_trustmtime 1}} {
1466         global HEAD PARENT MERGE_HEAD commit_type
1467         global ui_index ui_workdir ui_comm
1468         global rescan_active file_states
1469         global repo_config
1470
1471         if {$rescan_active > 0 || ![lock_index read]} return
1472
1473         repository_state newType newHEAD newMERGE_HEAD
1474         if {[string match amend* $commit_type]
1475                 && $newType eq {normal}
1476                 && $newHEAD eq $HEAD} {
1477         } else {
1478                 set HEAD $newHEAD
1479                 set PARENT $newHEAD
1480                 set MERGE_HEAD $newMERGE_HEAD
1481                 set commit_type $newType
1482         }
1483
1484         array unset file_states
1485
1486         if {!$::GITGUI_BCK_exists &&
1487                 (![$ui_comm edit modified]
1488                 || [string trim [$ui_comm get 0.0 end]] eq {})} {
1489                 if {[string match amend* $commit_type]} {
1490                 } elseif {[load_message GITGUI_MSG utf-8]} {
1491                 } elseif {[run_prepare_commit_msg_hook]} {
1492                 } elseif {[load_message MERGE_MSG]} {
1493                 } elseif {[load_message SQUASH_MSG]} {
1494                 }
1495                 $ui_comm edit reset
1496                 $ui_comm edit modified false
1497         }
1498
1499         if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
1500                 rescan_stage2 {} $after
1501         } else {
1502                 set rescan_active 1
1503                 ui_status [mc "Refreshing file status..."]
1504                 set fd_rf [git_read update-index \
1505                         -q \
1506                         --unmerged \
1507                         --ignore-missing \
1508                         --refresh \
1509                         ]
1510                 fconfigure $fd_rf -blocking 0 -translation binary
1511                 fileevent $fd_rf readable \
1512                         [list rescan_stage2 $fd_rf $after]
1513         }
1514 }
1515
1516 if {[is_Cygwin]} {
1517         set is_git_info_exclude {}
1518         proc have_info_exclude {} {
1519                 global is_git_info_exclude
1520
1521                 if {$is_git_info_exclude eq {}} {
1522                         if {[catch {exec test -f [gitdir info exclude]}]} {
1523                                 set is_git_info_exclude 0
1524                         } else {
1525                                 set is_git_info_exclude 1
1526                         }
1527                 }
1528                 return $is_git_info_exclude
1529         }
1530 } else {
1531         proc have_info_exclude {} {
1532                 return [file readable [gitdir info exclude]]
1533         }
1534 }
1535
1536 proc rescan_stage2 {fd after} {
1537         global rescan_active buf_rdi buf_rdf buf_rlo
1538
1539         if {$fd ne {}} {
1540                 read $fd
1541                 if {![eof $fd]} return
1542                 close $fd
1543         }
1544
1545         if {[package vcompare $::_git_version 1.6.3] >= 0} {
1546                 set ls_others [list --exclude-standard]
1547         } else {
1548                 set ls_others [list --exclude-per-directory=.gitignore]
1549                 if {[have_info_exclude]} {
1550                         lappend ls_others "--exclude-from=[gitdir info exclude]"
1551                 }
1552                 set user_exclude [get_config core.excludesfile]
1553                 if {$user_exclude ne {} && [file readable $user_exclude]} {
1554                         lappend ls_others "--exclude-from=[file normalize $user_exclude]"
1555                 }
1556         }
1557
1558         set buf_rdi {}
1559         set buf_rdf {}
1560         set buf_rlo {}
1561
1562         set rescan_active 2
1563         ui_status [mc "Scanning for modified files ..."]
1564         if {[git-version >= "1.7.2"]} {
1565                 set fd_di [git_read diff-index --cached --ignore-submodules=dirty -z [PARENT]]
1566         } else {
1567                 set fd_di [git_read diff-index --cached -z [PARENT]]
1568         }
1569         set fd_df [git_read diff-files -z]
1570
1571         fconfigure $fd_di -blocking 0 -translation binary -encoding binary
1572         fconfigure $fd_df -blocking 0 -translation binary -encoding binary
1573
1574         fileevent $fd_di readable [list read_diff_index $fd_di $after]
1575         fileevent $fd_df readable [list read_diff_files $fd_df $after]
1576
1577         if {[is_config_true gui.displayuntracked]} {
1578                 set fd_lo [eval git_read ls-files --others -z $ls_others]
1579                 fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
1580                 fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
1581                 incr rescan_active
1582         }
1583 }
1584
1585 proc load_message {file {encoding {}}} {
1586         global ui_comm
1587
1588         set f [gitdir $file]
1589         if {[file isfile $f]} {
1590                 if {[catch {set fd [open $f r]}]} {
1591                         return 0
1592                 }
1593                 fconfigure $fd -eofchar {}
1594                 if {$encoding ne {}} {
1595                         fconfigure $fd -encoding $encoding
1596                 }
1597                 set content [string trim [read $fd]]
1598                 close $fd
1599                 regsub -all -line {[ \r\t]+$} $content {} content
1600                 $ui_comm delete 0.0 end
1601                 $ui_comm insert end $content
1602                 return 1
1603         }
1604         return 0
1605 }
1606
1607 proc run_prepare_commit_msg_hook {} {
1608         global pch_error
1609
1610         # prepare-commit-msg requires PREPARE_COMMIT_MSG exist.  From git-gui
1611         # it will be .git/MERGE_MSG (merge), .git/SQUASH_MSG (squash), or an
1612         # empty file but existent file.
1613
1614         set fd_pcm [open [gitdir PREPARE_COMMIT_MSG] a]
1615
1616         if {[file isfile [gitdir MERGE_MSG]]} {
1617                 set pcm_source "merge"
1618                 set fd_mm [open [gitdir MERGE_MSG] r]
1619                 puts -nonewline $fd_pcm [read $fd_mm]
1620                 close $fd_mm
1621         } elseif {[file isfile [gitdir SQUASH_MSG]]} {
1622                 set pcm_source "squash"
1623                 set fd_sm [open [gitdir SQUASH_MSG] r]
1624                 puts -nonewline $fd_pcm [read $fd_sm]
1625                 close $fd_sm
1626         } else {
1627                 set pcm_source ""
1628         }
1629
1630         close $fd_pcm
1631
1632         set fd_ph [githook_read prepare-commit-msg \
1633                         [gitdir PREPARE_COMMIT_MSG] $pcm_source]
1634         if {$fd_ph eq {}} {
1635                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1636                 return 0;
1637         }
1638
1639         ui_status [mc "Calling prepare-commit-msg hook..."]
1640         set pch_error {}
1641
1642         fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
1643         fileevent $fd_ph readable \
1644                 [list prepare_commit_msg_hook_wait $fd_ph]
1645
1646         return 1;
1647 }
1648
1649 proc prepare_commit_msg_hook_wait {fd_ph} {
1650         global pch_error
1651
1652         append pch_error [read $fd_ph]
1653         fconfigure $fd_ph -blocking 1
1654         if {[eof $fd_ph]} {
1655                 if {[catch {close $fd_ph}]} {
1656                         ui_status [mc "Commit declined by prepare-commit-msg hook."]
1657                         hook_failed_popup prepare-commit-msg $pch_error
1658                         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1659                         exit 1
1660                 } else {
1661                         load_message PREPARE_COMMIT_MSG
1662                 }
1663                 set pch_error {}
1664                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1665                 return
1666         }
1667         fconfigure $fd_ph -blocking 0
1668         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1669 }
1670
1671 proc read_diff_index {fd after} {
1672         global buf_rdi
1673
1674         append buf_rdi [read $fd]
1675         set c 0
1676         set n [string length $buf_rdi]
1677         while {$c < $n} {
1678                 set z1 [string first "\0" $buf_rdi $c]
1679                 if {$z1 == -1} break
1680                 incr z1
1681                 set z2 [string first "\0" $buf_rdi $z1]
1682                 if {$z2 == -1} break
1683
1684                 incr c
1685                 set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
1686                 set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
1687                 merge_state \
1688                         [encoding convertfrom $p] \
1689                         [lindex $i 4]? \
1690                         [list [lindex $i 0] [lindex $i 2]] \
1691                         [list]
1692                 set c $z2
1693                 incr c
1694         }
1695         if {$c < $n} {
1696                 set buf_rdi [string range $buf_rdi $c end]
1697         } else {
1698                 set buf_rdi {}
1699         }
1700
1701         rescan_done $fd buf_rdi $after
1702 }
1703
1704 proc read_diff_files {fd after} {
1705         global buf_rdf
1706
1707         append buf_rdf [read $fd]
1708         set c 0
1709         set n [string length $buf_rdf]
1710         while {$c < $n} {
1711                 set z1 [string first "\0" $buf_rdf $c]
1712                 if {$z1 == -1} break
1713                 incr z1
1714                 set z2 [string first "\0" $buf_rdf $z1]
1715                 if {$z2 == -1} break
1716
1717                 incr c
1718                 set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
1719                 set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
1720                 merge_state \
1721                         [encoding convertfrom $p] \
1722                         ?[lindex $i 4] \
1723                         [list] \
1724                         [list [lindex $i 0] [lindex $i 2]]
1725                 set c $z2
1726                 incr c
1727         }
1728         if {$c < $n} {
1729                 set buf_rdf [string range $buf_rdf $c end]
1730         } else {
1731                 set buf_rdf {}
1732         }
1733
1734         rescan_done $fd buf_rdf $after
1735 }
1736
1737 proc read_ls_others {fd after} {
1738         global buf_rlo
1739
1740         append buf_rlo [read $fd]
1741         set pck [split $buf_rlo "\0"]
1742         set buf_rlo [lindex $pck end]
1743         foreach p [lrange $pck 0 end-1] {
1744                 set p [encoding convertfrom $p]
1745                 if {[string index $p end] eq {/}} {
1746                         set p [string range $p 0 end-1]
1747                 }
1748                 merge_state $p ?O
1749         }
1750         rescan_done $fd buf_rlo $after
1751 }
1752
1753 proc rescan_done {fd buf after} {
1754         global rescan_active current_diff_path
1755         global file_states repo_config
1756         upvar $buf to_clear
1757
1758         if {![eof $fd]} return
1759         set to_clear {}
1760         close $fd
1761         if {[incr rescan_active -1] > 0} return
1762
1763         prune_selection
1764         unlock_index
1765         display_all_files
1766         if {$current_diff_path ne {}} { reshow_diff $after }
1767         if {$current_diff_path eq {}} { select_first_diff $after }
1768 }
1769
1770 proc prune_selection {} {
1771         global file_states selected_paths
1772
1773         foreach path [array names selected_paths] {
1774                 if {[catch {set still_here $file_states($path)}]} {
1775                         unset selected_paths($path)
1776                 }
1777         }
1778 }
1779
1780 ######################################################################
1781 ##
1782 ## ui helpers
1783
1784 proc mapicon {w state path} {
1785         global all_icons
1786
1787         if {[catch {set r $all_icons($state$w)}]} {
1788                 puts "error: no icon for $w state={$state} $path"
1789                 return file_plain
1790         }
1791         return $r
1792 }
1793
1794 proc mapdesc {state path} {
1795         global all_descs
1796
1797         if {[catch {set r $all_descs($state)}]} {
1798                 puts "error: no desc for state={$state} $path"
1799                 return $state
1800         }
1801         return $r
1802 }
1803
1804 proc ui_status {msg} {
1805         global main_status
1806         if {[info exists main_status]} {
1807                 $main_status show $msg
1808         }
1809 }
1810
1811 proc ui_ready {{test {}}} {
1812         global main_status
1813         if {[info exists main_status]} {
1814                 $main_status show [mc "Ready."] $test
1815         }
1816 }
1817
1818 proc escape_path {path} {
1819         regsub -all {\\} $path "\\\\" path
1820         regsub -all "\n" $path "\\n" path
1821         return $path
1822 }
1823
1824 proc short_path {path} {
1825         return [escape_path [lindex [file split $path] end]]
1826 }
1827
1828 set next_icon_id 0
1829 set null_sha1 [string repeat 0 40]
1830
1831 proc merge_state {path new_state {head_info {}} {index_info {}}} {
1832         global file_states next_icon_id null_sha1
1833
1834         set s0 [string index $new_state 0]
1835         set s1 [string index $new_state 1]
1836
1837         if {[catch {set info $file_states($path)}]} {
1838                 set state __
1839                 set icon n[incr next_icon_id]
1840         } else {
1841                 set state [lindex $info 0]
1842                 set icon [lindex $info 1]
1843                 if {$head_info eq {}}  {set head_info  [lindex $info 2]}
1844                 if {$index_info eq {}} {set index_info [lindex $info 3]}
1845         }
1846
1847         if     {$s0 eq {?}} {set s0 [string index $state 0]} \
1848         elseif {$s0 eq {_}} {set s0 _}
1849
1850         if     {$s1 eq {?}} {set s1 [string index $state 1]} \
1851         elseif {$s1 eq {_}} {set s1 _}
1852
1853         if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
1854                 set head_info [list 0 $null_sha1]
1855         } elseif {$s0 ne {_} && [string index $state 0] eq {_}
1856                 && $head_info eq {}} {
1857                 set head_info $index_info
1858         } elseif {$s0 eq {_} && [string index $state 0] ne {_}} {
1859                 set index_info $head_info
1860                 set head_info {}
1861         }
1862
1863         set file_states($path) [list $s0$s1 $icon \
1864                 $head_info $index_info \
1865                 ]
1866         return $state
1867 }
1868
1869 proc display_file_helper {w path icon_name old_m new_m} {
1870         global file_lists
1871
1872         if {$new_m eq {_}} {
1873                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1874                 if {$lno >= 0} {
1875                         set file_lists($w) [lreplace $file_lists($w) $lno $lno]
1876                         incr lno
1877                         $w conf -state normal
1878                         $w delete $lno.0 [expr {$lno + 1}].0
1879                         $w conf -state disabled
1880                 }
1881         } elseif {$old_m eq {_} && $new_m ne {_}} {
1882                 lappend file_lists($w) $path
1883                 set file_lists($w) [lsort -unique $file_lists($w)]
1884                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1885                 incr lno
1886                 $w conf -state normal
1887                 $w image create $lno.0 \
1888                         -align center -padx 5 -pady 1 \
1889                         -name $icon_name \
1890                         -image [mapicon $w $new_m $path]
1891                 $w insert $lno.1 "[escape_path $path]\n"
1892                 $w conf -state disabled
1893         } elseif {$old_m ne $new_m} {
1894                 $w conf -state normal
1895                 $w image conf $icon_name -image [mapicon $w $new_m $path]
1896                 $w conf -state disabled
1897         }
1898 }
1899
1900 proc display_file {path state} {
1901         global file_states selected_paths
1902         global ui_index ui_workdir
1903
1904         set old_m [merge_state $path $state]
1905         set s $file_states($path)
1906         set new_m [lindex $s 0]
1907         set icon_name [lindex $s 1]
1908
1909         set o [string index $old_m 0]
1910         set n [string index $new_m 0]
1911         if {$o eq {U}} {
1912                 set o _
1913         }
1914         if {$n eq {U}} {
1915                 set n _
1916         }
1917         display_file_helper     $ui_index $path $icon_name $o $n
1918
1919         if {[string index $old_m 0] eq {U}} {
1920                 set o U
1921         } else {
1922                 set o [string index $old_m 1]
1923         }
1924         if {[string index $new_m 0] eq {U}} {
1925                 set n U
1926         } else {
1927                 set n [string index $new_m 1]
1928         }
1929         display_file_helper     $ui_workdir $path $icon_name $o $n
1930
1931         if {$new_m eq {__}} {
1932                 unset file_states($path)
1933                 catch {unset selected_paths($path)}
1934         }
1935 }
1936
1937 proc display_all_files_helper {w path icon_name m} {
1938         global file_lists
1939
1940         lappend file_lists($w) $path
1941         set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
1942         $w image create end \
1943                 -align center -padx 5 -pady 1 \
1944                 -name $icon_name \
1945                 -image [mapicon $w $m $path]
1946         $w insert end "[escape_path $path]\n"
1947 }
1948
1949 set files_warning 0
1950 proc display_all_files {} {
1951         global ui_index ui_workdir
1952         global file_states file_lists
1953         global last_clicked
1954         global files_warning
1955
1956         $ui_index conf -state normal
1957         $ui_workdir conf -state normal
1958
1959         $ui_index delete 0.0 end
1960         $ui_workdir delete 0.0 end
1961         set last_clicked {}
1962
1963         set file_lists($ui_index) [list]
1964         set file_lists($ui_workdir) [list]
1965
1966         set to_display [lsort [array names file_states]]
1967         set display_limit [get_config gui.maxfilesdisplayed]
1968         set displayed 0
1969         foreach path $to_display {
1970                 set s $file_states($path)
1971                 set m [lindex $s 0]
1972                 set icon_name [lindex $s 1]
1973
1974                 if {$displayed > $display_limit && [string index $m 1] eq {O} } {
1975                         if {!$files_warning} {
1976                                 # do not repeatedly warn:
1977                                 set files_warning 1
1978                                 info_popup [mc "Display limit (gui.maxfilesdisplayed = %s) reached, not showing all %s files." \
1979                                         $display_limit [llength $to_display]]
1980                         }
1981                         continue
1982                 }
1983
1984                 set s [string index $m 0]
1985                 if {$s ne {U} && $s ne {_}} {
1986                         display_all_files_helper $ui_index $path \
1987                                 $icon_name $s
1988                 }
1989
1990                 if {[string index $m 0] eq {U}} {
1991                         set s U
1992                 } else {
1993                         set s [string index $m 1]
1994                 }
1995                 if {$s ne {_}} {
1996                         display_all_files_helper $ui_workdir $path \
1997                                 $icon_name $s
1998                         incr displayed
1999                 }
2000         }
2001
2002         $ui_index conf -state disabled
2003         $ui_workdir conf -state disabled
2004 }
2005
2006 ######################################################################
2007 ##
2008 ## icons
2009
2010 set filemask {
2011 #define mask_width 14
2012 #define mask_height 15
2013 static unsigned char mask_bits[] = {
2014    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
2015    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
2016    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
2017 }
2018
2019 image create bitmap file_plain -background white -foreground black -data {
2020 #define plain_width 14
2021 #define plain_height 15
2022 static unsigned char plain_bits[] = {
2023    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
2024    0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
2025    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2026 } -maskdata $filemask
2027
2028 image create bitmap file_mod -background white -foreground blue -data {
2029 #define mod_width 14
2030 #define mod_height 15
2031 static unsigned char mod_bits[] = {
2032    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
2033    0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
2034    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
2035 } -maskdata $filemask
2036
2037 image create bitmap file_fulltick -background white -foreground "#007000" -data {
2038 #define file_fulltick_width 14
2039 #define file_fulltick_height 15
2040 static unsigned char file_fulltick_bits[] = {
2041    0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
2042    0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
2043    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2044 } -maskdata $filemask
2045
2046 image create bitmap file_question -background white -foreground black -data {
2047 #define file_question_width 14
2048 #define file_question_height 15
2049 static unsigned char file_question_bits[] = {
2050    0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
2051    0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
2052    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2053 } -maskdata $filemask
2054
2055 image create bitmap file_removed -background white -foreground red -data {
2056 #define file_removed_width 14
2057 #define file_removed_height 15
2058 static unsigned char file_removed_bits[] = {
2059    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
2060    0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
2061    0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
2062 } -maskdata $filemask
2063
2064 image create bitmap file_merge -background white -foreground blue -data {
2065 #define file_merge_width 14
2066 #define file_merge_height 15
2067 static unsigned char file_merge_bits[] = {
2068    0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
2069    0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
2070    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
2071 } -maskdata $filemask
2072
2073 image create bitmap file_statechange -background white -foreground green -data {
2074 #define file_statechange_width 14
2075 #define file_statechange_height 15
2076 static unsigned char file_statechange_bits[] = {
2077    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x62, 0x10,
2078    0x62, 0x10, 0xba, 0x11, 0xba, 0x11, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10,
2079    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2080 } -maskdata $filemask
2081
2082 set ui_index .vpane.files.index.list
2083 set ui_workdir .vpane.files.workdir.list
2084
2085 set all_icons(_$ui_index)   file_plain
2086 set all_icons(A$ui_index)   file_plain
2087 set all_icons(M$ui_index)   file_fulltick
2088 set all_icons(D$ui_index)   file_removed
2089 set all_icons(U$ui_index)   file_merge
2090 set all_icons(T$ui_index)   file_statechange
2091
2092 set all_icons(_$ui_workdir) file_plain
2093 set all_icons(M$ui_workdir) file_mod
2094 set all_icons(D$ui_workdir) file_question
2095 set all_icons(U$ui_workdir) file_merge
2096 set all_icons(O$ui_workdir) file_plain
2097 set all_icons(T$ui_workdir) file_statechange
2098
2099 set max_status_desc 0
2100 foreach i {
2101                 {__ {mc "Unmodified"}}
2102
2103                 {_M {mc "Modified, not staged"}}
2104                 {M_ {mc "Staged for commit"}}
2105                 {MM {mc "Portions staged for commit"}}
2106                 {MD {mc "Staged for commit, missing"}}
2107
2108                 {_T {mc "File type changed, not staged"}}
2109                 {MT {mc "File type changed, old type staged for commit"}}
2110                 {AT {mc "File type changed, old type staged for commit"}}
2111                 {T_ {mc "File type changed, staged"}}
2112                 {TM {mc "File type change staged, modification not staged"}}
2113                 {TD {mc "File type change staged, file missing"}}
2114
2115                 {_O {mc "Untracked, not staged"}}
2116                 {A_ {mc "Staged for commit"}}
2117                 {AM {mc "Portions staged for commit"}}
2118                 {AD {mc "Staged for commit, missing"}}
2119
2120                 {_D {mc "Missing"}}
2121                 {D_ {mc "Staged for removal"}}
2122                 {DO {mc "Staged for removal, still present"}}
2123
2124                 {_U {mc "Requires merge resolution"}}
2125                 {U_ {mc "Requires merge resolution"}}
2126                 {UU {mc "Requires merge resolution"}}
2127                 {UM {mc "Requires merge resolution"}}
2128                 {UD {mc "Requires merge resolution"}}
2129                 {UT {mc "Requires merge resolution"}}
2130         } {
2131         set text [eval [lindex $i 1]]
2132         if {$max_status_desc < [string length $text]} {
2133                 set max_status_desc [string length $text]
2134         }
2135         set all_descs([lindex $i 0]) $text
2136 }
2137 unset i
2138
2139 ######################################################################
2140 ##
2141 ## util
2142
2143 proc scrollbar2many {list mode args} {
2144         foreach w $list {eval $w $mode $args}
2145 }
2146
2147 proc many2scrollbar {list mode sb top bottom} {
2148         $sb set $top $bottom
2149         foreach w $list {$w $mode moveto $top}
2150 }
2151
2152 proc incr_font_size {font {amt 1}} {
2153         set sz [font configure $font -size]
2154         incr sz $amt
2155         font configure $font -size $sz
2156         font configure ${font}bold -size $sz
2157         font configure ${font}italic -size $sz
2158 }
2159
2160 ######################################################################
2161 ##
2162 ## ui commands
2163
2164 set starting_gitk_msg [mc "Starting gitk... please wait..."]
2165
2166 proc do_gitk {revs {is_submodule false}} {
2167         global current_diff_path file_states current_diff_side ui_index
2168         global _gitdir _gitworktree
2169
2170         # -- Always start gitk through whatever we were loaded with.  This
2171         #    lets us bypass using shell process on Windows systems.
2172         #
2173         set exe [_which gitk -script]
2174         set cmd [list [info nameofexecutable] $exe]
2175         if {$exe eq {}} {
2176                 error_popup [mc "Couldn't find gitk in PATH"]
2177         } else {
2178                 global env
2179
2180                 set pwd [pwd]
2181
2182                 if {!$is_submodule} {
2183                         if {![is_bare]} {
2184                                 cd $_gitworktree
2185                         }
2186                 } else {
2187                         cd $current_diff_path
2188                         if {$revs eq {--}} {
2189                                 set s $file_states($current_diff_path)
2190                                 set old_sha1 {}
2191                                 set new_sha1 {}
2192                                 switch -glob -- [lindex $s 0] {
2193                                 M_ { set old_sha1 [lindex [lindex $s 2] 1] }
2194                                 _M { set old_sha1 [lindex [lindex $s 3] 1] }
2195                                 MM {
2196                                         if {$current_diff_side eq $ui_index} {
2197                                                 set old_sha1 [lindex [lindex $s 2] 1]
2198                                                 set new_sha1 [lindex [lindex $s 3] 1]
2199                                         } else {
2200                                                 set old_sha1 [lindex [lindex $s 3] 1]
2201                                         }
2202                                 }
2203                                 }
2204                                 set revs $old_sha1...$new_sha1
2205                         }
2206                         # GIT_DIR and GIT_WORK_TREE for the submodule are not the ones
2207                         # we've been using for the main repository, so unset them.
2208                         # TODO we could make life easier (start up faster?) for gitk
2209                         # by setting these to the appropriate values to allow gitk
2210                         # to skip the heuristics to find their proper value
2211                         unset env(GIT_DIR)
2212                         unset env(GIT_WORK_TREE)
2213                 }
2214                 eval exec $cmd $revs "--" "--" &
2215
2216                 set env(GIT_DIR) $_gitdir
2217                 set env(GIT_WORK_TREE) $_gitworktree
2218                 cd $pwd
2219
2220                 ui_status $::starting_gitk_msg
2221                 after 10000 {
2222                         ui_ready $starting_gitk_msg
2223                 }
2224         }
2225 }
2226
2227 proc do_git_gui {} {
2228         global current_diff_path
2229
2230         # -- Always start git gui through whatever we were loaded with.  This
2231         #    lets us bypass using shell process on Windows systems.
2232         #
2233         set exe [list [_which git]]
2234         if {$exe eq {}} {
2235                 error_popup [mc "Couldn't find git gui in PATH"]
2236         } else {
2237                 global env
2238                 global _gitdir _gitworktree
2239
2240                 # see note in do_gitk about unsetting these vars when
2241                 # running tools in a submodule
2242                 unset env(GIT_DIR)
2243                 unset env(GIT_WORK_TREE)
2244
2245                 set pwd [pwd]
2246                 cd $current_diff_path
2247
2248                 eval exec $exe gui &
2249
2250                 set env(GIT_DIR) $_gitdir
2251                 set env(GIT_WORK_TREE) $_gitworktree
2252                 cd $pwd
2253
2254                 ui_status $::starting_gitk_msg
2255                 after 10000 {
2256                         ui_ready $starting_gitk_msg
2257                 }
2258         }
2259 }
2260
2261 proc do_explore {} {
2262         global _gitworktree
2263         set explorer {}
2264         if {[is_Cygwin] || [is_Windows]} {
2265                 set explorer "explorer.exe"
2266         } elseif {[is_MacOSX]} {
2267                 set explorer "open"
2268         } else {
2269                 # freedesktop.org-conforming system is our best shot
2270                 set explorer "xdg-open"
2271         }
2272         eval exec $explorer [list [file nativename $_gitworktree]] &
2273 }
2274
2275 set is_quitting 0
2276 set ret_code    1
2277
2278 proc terminate_me {win} {
2279         global ret_code
2280         if {$win ne {.}} return
2281         exit $ret_code
2282 }
2283
2284 proc do_quit {{rc {1}}} {
2285         global ui_comm is_quitting repo_config commit_type
2286         global GITGUI_BCK_exists GITGUI_BCK_i
2287         global ui_comm_spell
2288         global ret_code use_ttk
2289
2290         if {$is_quitting} return
2291         set is_quitting 1
2292
2293         if {[winfo exists $ui_comm]} {
2294                 # -- Stash our current commit buffer.
2295                 #
2296                 set save [gitdir GITGUI_MSG]
2297                 if {$GITGUI_BCK_exists && ![$ui_comm edit modified]} {
2298                         file rename -force [gitdir GITGUI_BCK] $save
2299                         set GITGUI_BCK_exists 0
2300                 } else {
2301                         set msg [string trim [$ui_comm get 0.0 end]]
2302                         regsub -all -line {[ \r\t]+$} $msg {} msg
2303                         if {(![string match amend* $commit_type]
2304                                 || [$ui_comm edit modified])
2305                                 && $msg ne {}} {
2306                                 catch {
2307                                         set fd [open $save w]
2308                                         fconfigure $fd -encoding utf-8
2309                                         puts -nonewline $fd $msg
2310                                         close $fd
2311                                 }
2312                         } else {
2313                                 catch {file delete $save}
2314                         }
2315                 }
2316
2317                 # -- Cancel our spellchecker if its running.
2318                 #
2319                 if {[info exists ui_comm_spell]} {
2320                         $ui_comm_spell stop
2321                 }
2322
2323                 # -- Remove our editor backup, its not needed.
2324                 #
2325                 after cancel $GITGUI_BCK_i
2326                 if {$GITGUI_BCK_exists} {
2327                         catch {file delete [gitdir GITGUI_BCK]}
2328                 }
2329
2330                 # -- Stash our current window geometry into this repository.
2331                 #
2332                 set cfg_wmstate [wm state .]
2333                 if {[catch {set rc_wmstate $repo_config(gui.wmstate)}]} {
2334                         set rc_wmstate {}
2335                 }
2336                 if {$cfg_wmstate ne $rc_wmstate} {
2337                         catch {git config gui.wmstate $cfg_wmstate}
2338                 }
2339                 if {$cfg_wmstate eq {zoomed}} {
2340                         # on Windows wm geometry will lie about window
2341                         # position (but not size) when window is zoomed
2342                         # restore the window before querying wm geometry
2343                         wm state . normal
2344                 }
2345                 set cfg_geometry [list]
2346                 lappend cfg_geometry [wm geometry .]
2347                 if {$use_ttk} {
2348                         lappend cfg_geometry [.vpane sashpos 0]
2349                         lappend cfg_geometry [.vpane.files sashpos 0]
2350                 } else {
2351                         lappend cfg_geometry [lindex [.vpane sash coord 0] 0]
2352                         lappend cfg_geometry [lindex [.vpane.files sash coord 0] 1]
2353                 }
2354                 if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
2355                         set rc_geometry {}
2356                 }
2357                 if {$cfg_geometry ne $rc_geometry} {
2358                         catch {git config gui.geometry $cfg_geometry}
2359                 }
2360         }
2361
2362         set ret_code $rc
2363
2364         # Briefly enable send again, working around Tk bug
2365         # http://sourceforge.net/tracker/?func=detail&atid=112997&aid=1821174&group_id=12997
2366         tk appname [appname]
2367
2368         destroy .
2369 }
2370
2371 proc do_rescan {} {
2372         rescan ui_ready
2373 }
2374
2375 proc ui_do_rescan {} {
2376         rescan {force_first_diff ui_ready}
2377 }
2378
2379 proc do_commit {} {
2380         commit_tree
2381 }
2382
2383 proc next_diff {{after {}}} {
2384         global next_diff_p next_diff_w next_diff_i
2385         show_diff $next_diff_p $next_diff_w {} {} $after
2386 }
2387
2388 proc find_anchor_pos {lst name} {
2389         set lid [lsearch -sorted -exact $lst $name]
2390
2391         if {$lid == -1} {
2392                 set lid 0
2393                 foreach lname $lst {
2394                         if {$lname >= $name} break
2395                         incr lid
2396                 }
2397         }
2398
2399         return $lid
2400 }
2401
2402 proc find_file_from {flist idx delta path mmask} {
2403         global file_states
2404
2405         set len [llength $flist]
2406         while {$idx >= 0 && $idx < $len} {
2407                 set name [lindex $flist $idx]
2408
2409                 if {$name ne $path && [info exists file_states($name)]} {
2410                         set state [lindex $file_states($name) 0]
2411
2412                         if {$mmask eq {} || [regexp $mmask $state]} {
2413                                 return $idx
2414                         }
2415                 }
2416
2417                 incr idx $delta
2418         }
2419
2420         return {}
2421 }
2422
2423 proc find_next_diff {w path {lno {}} {mmask {}}} {
2424         global next_diff_p next_diff_w next_diff_i
2425         global file_lists ui_index ui_workdir
2426
2427         set flist $file_lists($w)
2428         if {$lno eq {}} {
2429                 set lno [find_anchor_pos $flist $path]
2430         } else {
2431                 incr lno -1
2432         }
2433
2434         if {$mmask ne {} && ![regexp {(^\^)|(\$$)} $mmask]} {
2435                 if {$w eq $ui_index} {
2436                         set mmask "^$mmask"
2437                 } else {
2438                         set mmask "$mmask\$"
2439                 }
2440         }
2441
2442         set idx [find_file_from $flist $lno 1 $path $mmask]
2443         if {$idx eq {}} {
2444                 incr lno -1
2445                 set idx [find_file_from $flist $lno -1 $path $mmask]
2446         }
2447
2448         if {$idx ne {}} {
2449                 set next_diff_w $w
2450                 set next_diff_p [lindex $flist $idx]
2451                 set next_diff_i [expr {$idx+1}]
2452                 return 1
2453         } else {
2454                 return 0
2455         }
2456 }
2457
2458 proc next_diff_after_action {w path {lno {}} {mmask {}}} {
2459         global current_diff_path
2460
2461         if {$path ne $current_diff_path} {
2462                 return {}
2463         } elseif {[find_next_diff $w $path $lno $mmask]} {
2464                 return {next_diff;}
2465         } else {
2466                 return {reshow_diff;}
2467         }
2468 }
2469
2470 proc select_first_diff {after} {
2471         global ui_workdir
2472
2473         if {[find_next_diff $ui_workdir {} 1 {^_?U}] ||
2474             [find_next_diff $ui_workdir {} 1 {[^O]$}]} {
2475                 next_diff $after
2476         } else {
2477                 uplevel #0 $after
2478         }
2479 }
2480
2481 proc force_first_diff {after} {
2482         global ui_workdir current_diff_path file_states
2483
2484         if {[info exists file_states($current_diff_path)]} {
2485                 set state [lindex $file_states($current_diff_path) 0]
2486         } else {
2487                 set state {OO}
2488         }
2489
2490         set reselect 0
2491         if {[string first {U} $state] >= 0} {
2492                 # Already a conflict, do nothing
2493         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {^_?U}]} {
2494                 set reselect 1
2495         } elseif {[string index $state 1] ne {O}} {
2496                 # Already a diff & no conflicts, do nothing
2497         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {[^O]$}]} {
2498                 set reselect 1
2499         }
2500
2501         if {$reselect} {
2502                 next_diff $after
2503         } else {
2504                 uplevel #0 $after
2505         }
2506 }
2507
2508 proc toggle_or_diff {w x y} {
2509         global file_states file_lists current_diff_path ui_index ui_workdir
2510         global last_clicked selected_paths
2511
2512         set pos [split [$w index @$x,$y] .]
2513         set lno [lindex $pos 0]
2514         set col [lindex $pos 1]
2515         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2516         if {$path eq {}} {
2517                 set last_clicked {}
2518                 return
2519         }
2520
2521         set last_clicked [list $w $lno]
2522         array unset selected_paths
2523         $ui_index tag remove in_sel 0.0 end
2524         $ui_workdir tag remove in_sel 0.0 end
2525
2526         # Determine the state of the file
2527         if {[info exists file_states($path)]} {
2528                 set state [lindex $file_states($path) 0]
2529         } else {
2530                 set state {__}
2531         }
2532
2533         # Restage the file, or simply show the diff
2534         if {$col == 0 && $y > 1} {
2535                 # Conflicts need special handling
2536                 if {[string first {U} $state] >= 0} {
2537                         # $w must always be $ui_workdir, but...
2538                         if {$w ne $ui_workdir} { set lno {} }
2539                         merge_stage_workdir $path $lno
2540                         return
2541                 }
2542
2543                 if {[string index $state 1] eq {O}} {
2544                         set mmask {}
2545                 } else {
2546                         set mmask {[^O]}
2547                 }
2548
2549                 set after [next_diff_after_action $w $path $lno $mmask]
2550
2551                 if {$w eq $ui_index} {
2552                         update_indexinfo \
2553                                 "Unstaging [short_path $path] from commit" \
2554                                 [list $path] \
2555                                 [concat $after [list ui_ready]]
2556                 } elseif {$w eq $ui_workdir} {
2557                         update_index \
2558                                 "Adding [short_path $path]" \
2559                                 [list $path] \
2560                                 [concat $after [list ui_ready]]
2561                 }
2562         } else {
2563                 set selected_paths($path) 1
2564                 show_diff $path $w $lno
2565         }
2566 }
2567
2568 proc add_one_to_selection {w x y} {
2569         global file_lists last_clicked selected_paths
2570
2571         set lno [lindex [split [$w index @$x,$y] .] 0]
2572         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2573         if {$path eq {}} {
2574                 set last_clicked {}
2575                 return
2576         }
2577
2578         if {$last_clicked ne {}
2579                 && [lindex $last_clicked 0] ne $w} {
2580                 array unset selected_paths
2581                 [lindex $last_clicked 0] tag remove in_sel 0.0 end
2582         }
2583
2584         set last_clicked [list $w $lno]
2585         if {[catch {set in_sel $selected_paths($path)}]} {
2586                 set in_sel 0
2587         }
2588         if {$in_sel} {
2589                 unset selected_paths($path)
2590                 $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
2591         } else {
2592                 set selected_paths($path) 1
2593                 $w tag add in_sel $lno.0 [expr {$lno + 1}].0
2594         }
2595 }
2596
2597 proc add_range_to_selection {w x y} {
2598         global file_lists last_clicked selected_paths
2599
2600         if {[lindex $last_clicked 0] ne $w} {
2601                 toggle_or_diff $w $x $y
2602                 return
2603         }
2604
2605         set lno [lindex [split [$w index @$x,$y] .] 0]
2606         set lc [lindex $last_clicked 1]
2607         if {$lc < $lno} {
2608                 set begin $lc
2609                 set end $lno
2610         } else {
2611                 set begin $lno
2612                 set end $lc
2613         }
2614
2615         foreach path [lrange $file_lists($w) \
2616                 [expr {$begin - 1}] \
2617                 [expr {$end - 1}]] {
2618                 set selected_paths($path) 1
2619         }
2620         $w tag add in_sel $begin.0 [expr {$end + 1}].0
2621 }
2622
2623 proc show_more_context {} {
2624         global repo_config
2625         if {$repo_config(gui.diffcontext) < 99} {
2626                 incr repo_config(gui.diffcontext)
2627                 reshow_diff
2628         }
2629 }
2630
2631 proc show_less_context {} {
2632         global repo_config
2633         if {$repo_config(gui.diffcontext) > 1} {
2634                 incr repo_config(gui.diffcontext) -1
2635                 reshow_diff
2636         }
2637 }
2638
2639 ######################################################################
2640 ##
2641 ## ui construction
2642
2643 set ui_comm {}
2644
2645 # -- Menu Bar
2646 #
2647 menu .mbar -tearoff 0
2648 if {[is_MacOSX]} {
2649         # -- Apple Menu (Mac OS X only)
2650         #
2651         .mbar add cascade -label Apple -menu .mbar.apple
2652         menu .mbar.apple
2653 }
2654 .mbar add cascade -label [mc Repository] -menu .mbar.repository
2655 .mbar add cascade -label [mc Edit] -menu .mbar.edit
2656 if {[is_enabled branch]} {
2657         .mbar add cascade -label [mc Branch] -menu .mbar.branch
2658 }
2659 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2660         .mbar add cascade -label [mc Commit@@noun] -menu .mbar.commit
2661 }
2662 if {[is_enabled transport]} {
2663         .mbar add cascade -label [mc Merge] -menu .mbar.merge
2664         .mbar add cascade -label [mc Remote] -menu .mbar.remote
2665 }
2666 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2667         .mbar add cascade -label [mc Tools] -menu .mbar.tools
2668 }
2669
2670 # -- Repository Menu
2671 #
2672 menu .mbar.repository
2673
2674 if {![is_bare]} {
2675         .mbar.repository add command \
2676                 -label [mc "Explore Working Copy"] \
2677                 -command {do_explore}
2678 }
2679
2680 if {[is_Windows]} {
2681         .mbar.repository add command \
2682                 -label [mc "Git Bash"] \
2683                 -command {eval exec [auto_execok start] \
2684                                           [list "Git Bash" bash --login -l &]}
2685 }
2686
2687 if {[is_Windows] || ![is_bare]} {
2688         .mbar.repository add separator
2689 }
2690
2691 .mbar.repository add command \
2692         -label [mc "Browse Current Branch's Files"] \
2693         -command {browser::new $current_branch}
2694 set ui_browse_current [.mbar.repository index last]
2695 .mbar.repository add command \
2696         -label [mc "Browse Branch Files..."] \
2697         -command browser_open::dialog
2698 .mbar.repository add separator
2699
2700 .mbar.repository add command \
2701         -label [mc "Visualize Current Branch's History"] \
2702         -command {do_gitk $current_branch}
2703 set ui_visualize_current [.mbar.repository index last]
2704 .mbar.repository add command \
2705         -label [mc "Visualize All Branch History"] \
2706         -command {do_gitk --all}
2707 .mbar.repository add separator
2708
2709 proc current_branch_write {args} {
2710         global current_branch
2711         .mbar.repository entryconf $::ui_browse_current \
2712                 -label [mc "Browse %s's Files" $current_branch]
2713         .mbar.repository entryconf $::ui_visualize_current \
2714                 -label [mc "Visualize %s's History" $current_branch]
2715 }
2716 trace add variable current_branch write current_branch_write
2717
2718 if {[is_enabled multicommit]} {
2719         .mbar.repository add command -label [mc "Database Statistics"] \
2720                 -command do_stats
2721
2722         .mbar.repository add command -label [mc "Compress Database"] \
2723                 -command do_gc
2724
2725         .mbar.repository add command -label [mc "Verify Database"] \
2726                 -command do_fsck_objects
2727
2728         .mbar.repository add separator
2729
2730         if {[is_Cygwin]} {
2731                 .mbar.repository add command \
2732                         -label [mc "Create Desktop Icon"] \
2733                         -command do_cygwin_shortcut
2734         } elseif {[is_Windows]} {
2735                 .mbar.repository add command \
2736                         -label [mc "Create Desktop Icon"] \
2737                         -command do_windows_shortcut
2738         } elseif {[is_MacOSX]} {
2739                 .mbar.repository add command \
2740                         -label [mc "Create Desktop Icon"] \
2741                         -command do_macosx_app
2742         }
2743 }
2744
2745 if {[is_MacOSX]} {
2746         proc ::tk::mac::Quit {args} { do_quit }
2747 } else {
2748         .mbar.repository add command -label [mc Quit] \
2749                 -command do_quit \
2750                 -accelerator $M1T-Q
2751 }
2752
2753 # -- Edit Menu
2754 #
2755 menu .mbar.edit
2756 .mbar.edit add command -label [mc Undo] \
2757         -command {catch {[focus] edit undo}} \
2758         -accelerator $M1T-Z
2759 .mbar.edit add command -label [mc Redo] \
2760         -command {catch {[focus] edit redo}} \
2761         -accelerator $M1T-Y
2762 .mbar.edit add separator
2763 .mbar.edit add command -label [mc Cut] \
2764         -command {catch {tk_textCut [focus]}} \
2765         -accelerator $M1T-X
2766 .mbar.edit add command -label [mc Copy] \
2767         -command {catch {tk_textCopy [focus]}} \
2768         -accelerator $M1T-C
2769 .mbar.edit add command -label [mc Paste] \
2770         -command {catch {tk_textPaste [focus]; [focus] see insert}} \
2771         -accelerator $M1T-V
2772 .mbar.edit add command -label [mc Delete] \
2773         -command {catch {[focus] delete sel.first sel.last}} \
2774         -accelerator Del
2775 .mbar.edit add separator
2776 .mbar.edit add command -label [mc "Select All"] \
2777         -command {catch {[focus] tag add sel 0.0 end}} \
2778         -accelerator $M1T-A
2779
2780 # -- Branch Menu
2781 #
2782 if {[is_enabled branch]} {
2783         menu .mbar.branch
2784
2785         .mbar.branch add command -label [mc "Create..."] \
2786                 -command branch_create::dialog \
2787                 -accelerator $M1T-N
2788         lappend disable_on_lock [list .mbar.branch entryconf \
2789                 [.mbar.branch index last] -state]
2790
2791         .mbar.branch add command -label [mc "Checkout..."] \
2792                 -command branch_checkout::dialog \
2793                 -accelerator $M1T-O
2794         lappend disable_on_lock [list .mbar.branch entryconf \
2795                 [.mbar.branch index last] -state]
2796
2797         .mbar.branch add command -label [mc "Rename..."] \
2798                 -command branch_rename::dialog
2799         lappend disable_on_lock [list .mbar.branch entryconf \
2800                 [.mbar.branch index last] -state]
2801
2802         .mbar.branch add command -label [mc "Delete..."] \
2803                 -command branch_delete::dialog
2804         lappend disable_on_lock [list .mbar.branch entryconf \
2805                 [.mbar.branch index last] -state]
2806
2807         .mbar.branch add command -label [mc "Reset..."] \
2808                 -command merge::reset_hard
2809         lappend disable_on_lock [list .mbar.branch entryconf \
2810                 [.mbar.branch index last] -state]
2811 }
2812
2813 # -- Commit Menu
2814 #
2815 proc commit_btn_caption {} {
2816         if {[is_enabled nocommit]} {
2817                 return [mc "Done"]
2818         } else {
2819                 return [mc Commit@@verb]
2820         }
2821 }
2822
2823 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2824         menu .mbar.commit
2825
2826         if {![is_enabled nocommit]} {
2827                 .mbar.commit add radiobutton \
2828                         -label [mc "New Commit"] \
2829                         -command do_select_commit_type \
2830                         -variable selected_commit_type \
2831                         -value new
2832                 lappend disable_on_lock \
2833                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2834
2835                 .mbar.commit add radiobutton \
2836                         -label [mc "Amend Last Commit"] \
2837                         -command do_select_commit_type \
2838                         -variable selected_commit_type \
2839                         -value amend
2840                 lappend disable_on_lock \
2841                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2842
2843                 .mbar.commit add separator
2844         }
2845
2846         .mbar.commit add command -label [mc Rescan] \
2847                 -command ui_do_rescan \
2848                 -accelerator F5
2849         lappend disable_on_lock \
2850                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2851
2852         .mbar.commit add command -label [mc "Stage To Commit"] \
2853                 -command do_add_selection \
2854                 -accelerator $M1T-T
2855         lappend disable_on_lock \
2856                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2857
2858         .mbar.commit add command -label [mc "Stage Changed Files To Commit"] \
2859                 -command do_add_all \
2860                 -accelerator $M1T-I
2861         lappend disable_on_lock \
2862                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2863
2864         .mbar.commit add command -label [mc "Unstage From Commit"] \
2865                 -command do_unstage_selection \
2866                 -accelerator $M1T-U
2867         lappend disable_on_lock \
2868                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2869
2870         .mbar.commit add command -label [mc "Revert Changes"] \
2871                 -command do_revert_selection \
2872                 -accelerator $M1T-J
2873         lappend disable_on_lock \
2874                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2875
2876         .mbar.commit add separator
2877
2878         .mbar.commit add command -label [mc "Show Less Context"] \
2879                 -command show_less_context \
2880                 -accelerator $M1T-\-
2881
2882         .mbar.commit add command -label [mc "Show More Context"] \
2883                 -command show_more_context \
2884                 -accelerator $M1T-=
2885
2886         .mbar.commit add separator
2887
2888         if {![is_enabled nocommitmsg]} {
2889                 .mbar.commit add command -label [mc "Sign Off"] \
2890                         -command do_signoff \
2891                         -accelerator $M1T-S
2892         }
2893
2894         .mbar.commit add command -label [commit_btn_caption] \
2895                 -command do_commit \
2896                 -accelerator $M1T-Return
2897         lappend disable_on_lock \
2898                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2899 }
2900
2901 # -- Merge Menu
2902 #
2903 if {[is_enabled branch]} {
2904         menu .mbar.merge
2905         .mbar.merge add command -label [mc "Local Merge..."] \
2906                 -command merge::dialog \
2907                 -accelerator $M1T-M
2908         lappend disable_on_lock \
2909                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2910         .mbar.merge add command -label [mc "Abort Merge..."] \
2911                 -command merge::reset_hard
2912         lappend disable_on_lock \
2913                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2914 }
2915
2916 # -- Transport Menu
2917 #
2918 if {[is_enabled transport]} {
2919         menu .mbar.remote
2920
2921         .mbar.remote add command \
2922                 -label [mc "Add..."] \
2923                 -command remote_add::dialog \
2924                 -accelerator $M1T-A
2925         .mbar.remote add command \
2926                 -label [mc "Push..."] \
2927                 -command do_push_anywhere \
2928                 -accelerator $M1T-P
2929         .mbar.remote add command \
2930                 -label [mc "Delete Branch..."] \
2931                 -command remote_branch_delete::dialog
2932 }
2933
2934 if {[is_MacOSX]} {
2935         proc ::tk::mac::ShowPreferences {} {do_options}
2936 } else {
2937         # -- Edit Menu
2938         #
2939         .mbar.edit add separator
2940         .mbar.edit add command -label [mc "Options..."] \
2941                 -command do_options
2942 }
2943
2944 # -- Tools Menu
2945 #
2946 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2947         set tools_menubar .mbar.tools
2948         menu $tools_menubar
2949         $tools_menubar add separator
2950         $tools_menubar add command -label [mc "Add..."] -command tools_add::dialog
2951         $tools_menubar add command -label [mc "Remove..."] -command tools_remove::dialog
2952         set tools_tailcnt 3
2953         if {[array names repo_config guitool.*.cmd] ne {}} {
2954                 tools_populate_all
2955         }
2956 }
2957
2958 # -- Help Menu
2959 #
2960 .mbar add cascade -label [mc Help] -menu .mbar.help
2961 menu .mbar.help
2962
2963 if {[is_MacOSX]} {
2964         .mbar.apple add command -label [mc "About %s" [appname]] \
2965                 -command do_about
2966         .mbar.apple add separator
2967 } else {
2968         .mbar.help add command -label [mc "About %s" [appname]] \
2969                 -command do_about
2970 }
2971 . configure -menu .mbar
2972
2973 set doc_path [githtmldir]
2974 if {$doc_path ne {}} {
2975         set doc_path [file join $doc_path index.html]
2976
2977         if {[is_Cygwin]} {
2978                 set doc_path [exec cygpath --mixed $doc_path]
2979         }
2980 }
2981
2982 if {[file isfile $doc_path]} {
2983         set doc_url "file:$doc_path"
2984 } else {
2985         set doc_url {http://www.kernel.org/pub/software/scm/git/docs/}
2986 }
2987
2988 proc start_browser {url} {
2989         git "web--browse" $url
2990 }
2991
2992 .mbar.help add command -label [mc "Online Documentation"] \
2993         -command [list start_browser $doc_url]
2994
2995 .mbar.help add command -label [mc "Show SSH Key"] \
2996         -command do_ssh_key
2997
2998 unset doc_path doc_url
2999
3000 # -- Standard bindings
3001 #
3002 wm protocol . WM_DELETE_WINDOW do_quit
3003 bind all <$M1B-Key-q> do_quit
3004 bind all <$M1B-Key-Q> do_quit
3005 bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
3006 bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
3007
3008 set subcommand_args {}
3009 proc usage {} {
3010         set s "usage: $::argv0 $::subcommand $::subcommand_args"
3011         if {[tk windowingsystem] eq "win32"} {
3012                 wm withdraw .
3013                 tk_messageBox -icon info -message $s \
3014                         -title [mc "Usage"]
3015         } else {
3016                 puts stderr $s
3017         }
3018         exit 1
3019 }
3020
3021 proc normalize_relpath {path} {
3022         set elements {}
3023         foreach item [file split $path] {
3024                 if {$item eq {.}} continue
3025                 if {$item eq {..} && [llength $elements] > 0
3026                     && [lindex $elements end] ne {..}} {
3027                         set elements [lrange $elements 0 end-1]
3028                         continue
3029                 }
3030                 lappend elements $item
3031         }
3032         return [eval file join $elements]
3033 }
3034
3035 # -- Not a normal commit type invocation?  Do that instead!
3036 #
3037 switch -- $subcommand {
3038 browser -
3039 blame {
3040         if {$subcommand eq "blame"} {
3041                 set subcommand_args {[--line=<num>] rev? path}
3042         } else {
3043                 set subcommand_args {rev? path}
3044         }
3045         if {$argv eq {}} usage
3046         set head {}
3047         set path {}
3048         set jump_spec {}
3049         set is_path 0
3050         foreach a $argv {
3051                 set p [file join $_prefix $a]
3052
3053                 if {$is_path || [file exists $p]} {
3054                         if {$path ne {}} usage
3055                         set path [normalize_relpath $p]
3056                         break
3057                 } elseif {$a eq {--}} {
3058                         if {$path ne {}} {
3059                                 if {$head ne {}} usage
3060                                 set head $path
3061                                 set path {}
3062                         }
3063                         set is_path 1
3064                 } elseif {[regexp {^--line=(\d+)$} $a a lnum]} {
3065                         if {$jump_spec ne {} || $head ne {}} usage
3066                         set jump_spec [list $lnum]
3067                 } elseif {$head eq {}} {
3068                         if {$head ne {}} usage
3069                         set head $a
3070                         set is_path 1
3071                 } else {
3072                         usage
3073                 }
3074         }
3075         unset is_path
3076
3077         if {$head ne {} && $path eq {}} {
3078                 if {[string index $head 0] eq {/}} {
3079                         set path [normalize_relpath $head]
3080                         set head {}
3081                 } else {
3082                         set path [normalize_relpath $_prefix$head]
3083                         set head {}
3084                 }
3085         }
3086
3087         if {$head eq {}} {
3088                 load_current_branch
3089         } else {
3090                 if {[regexp {^[0-9a-f]{1,39}$} $head]} {
3091                         if {[catch {
3092                                         set head [git rev-parse --verify $head]
3093                                 } err]} {
3094                                 if {[tk windowingsystem] eq "win32"} {
3095                                         tk_messageBox -icon error -title [mc Error] -message $err
3096                                 } else {
3097                                         puts stderr $err
3098                                 }
3099                                 exit 1
3100                         }
3101                 }
3102                 set current_branch $head
3103         }
3104
3105         wm deiconify .
3106         switch -- $subcommand {
3107         browser {
3108                 if {$jump_spec ne {}} usage
3109                 if {$head eq {}} {
3110                         if {$path ne {} && [file isdirectory $path]} {
3111                                 set head $current_branch
3112                         } else {
3113                                 set head $path
3114                                 set path {}
3115                         }
3116                 }
3117                 browser::new $head $path
3118         }
3119         blame   {
3120                 if {$head eq {} && ![file exists $path]} {
3121                         catch {wm withdraw .}
3122                         tk_messageBox \
3123                                 -icon error \
3124                                 -type ok \
3125                                 -title [mc "git-gui: fatal error"] \
3126                                 -message [mc "fatal: cannot stat path %s: No such file or directory" $path]
3127                         exit 1
3128                 }
3129                 blame::new $head $path $jump_spec
3130         }
3131         }
3132         return
3133 }
3134 citool -
3135 gui {
3136         if {[llength $argv] != 0} {
3137                 usage
3138         }
3139         # fall through to setup UI for commits
3140 }
3141 default {
3142         set err "usage: $argv0 \[{blame|browser|citool}\]"
3143         if {[tk windowingsystem] eq "win32"} {
3144                 wm withdraw .
3145                 tk_messageBox -icon error -message $err \
3146                         -title [mc "Usage"]
3147         } else {
3148                 puts stderr $err
3149         }
3150         exit 1
3151 }
3152 }
3153
3154 # -- Branch Control
3155 #
3156 ${NS}::frame .branch
3157 if {!$use_ttk} {.branch configure -borderwidth 1 -relief sunken}
3158 ${NS}::label .branch.l1 \
3159         -text [mc "Current Branch:"] \
3160         -anchor w \
3161         -justify left
3162 ${NS}::label .branch.cb \
3163         -textvariable current_branch \
3164         -anchor w \
3165         -justify left
3166 pack .branch.l1 -side left
3167 pack .branch.cb -side left -fill x
3168 pack .branch -side top -fill x
3169
3170 # -- Main Window Layout
3171 #
3172 ${NS}::panedwindow .vpane -orient horizontal
3173 ${NS}::panedwindow .vpane.files -orient vertical
3174 if {$use_ttk} {
3175         .vpane add .vpane.files
3176 } else {
3177         .vpane add .vpane.files -sticky nsew -height 100 -width 200
3178 }
3179 pack .vpane -anchor n -side top -fill both -expand 1
3180
3181 # -- Index File List
3182 #
3183 ${NS}::frame .vpane.files.index -height 100 -width 200
3184 tlabel .vpane.files.index.title \
3185         -text [mc "Staged Changes (Will Commit)"] \
3186         -background lightgreen -foreground black
3187 text $ui_index -background white -foreground black \
3188         -borderwidth 0 \
3189         -width 20 -height 10 \
3190         -wrap none \
3191         -cursor $cursor_ptr \
3192         -xscrollcommand {.vpane.files.index.sx set} \
3193         -yscrollcommand {.vpane.files.index.sy set} \
3194         -state disabled
3195 ${NS}::scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
3196 ${NS}::scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
3197 pack .vpane.files.index.title -side top -fill x
3198 pack .vpane.files.index.sx -side bottom -fill x
3199 pack .vpane.files.index.sy -side right -fill y
3200 pack $ui_index -side left -fill both -expand 1
3201
3202 # -- Working Directory File List
3203 #
3204 ${NS}::frame .vpane.files.workdir -height 100 -width 200
3205 tlabel .vpane.files.workdir.title -text [mc "Unstaged Changes"] \
3206         -background lightsalmon -foreground black
3207 text $ui_workdir -background white -foreground black \
3208         -borderwidth 0 \
3209         -width 20 -height 10 \
3210         -wrap none \
3211         -cursor $cursor_ptr \
3212         -xscrollcommand {.vpane.files.workdir.sx set} \
3213         -yscrollcommand {.vpane.files.workdir.sy set} \
3214         -state disabled
3215 ${NS}::scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
3216 ${NS}::scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
3217 pack .vpane.files.workdir.title -side top -fill x
3218 pack .vpane.files.workdir.sx -side bottom -fill x
3219 pack .vpane.files.workdir.sy -side right -fill y
3220 pack $ui_workdir -side left -fill both -expand 1
3221
3222 .vpane.files add .vpane.files.workdir
3223 .vpane.files add .vpane.files.index
3224 if {!$use_ttk} {
3225         .vpane.files paneconfigure .vpane.files.workdir -sticky news
3226         .vpane.files paneconfigure .vpane.files.index -sticky news
3227 }
3228
3229 foreach i [list $ui_index $ui_workdir] {
3230         rmsel_tag $i
3231         $i tag conf in_diff -background [$i tag cget in_sel -background]
3232 }
3233 unset i
3234
3235 # -- Diff and Commit Area
3236 #
3237 if {$have_tk85} {
3238         ${NS}::panedwindow .vpane.lower -orient vertical
3239         ${NS}::frame .vpane.lower.commarea
3240         ${NS}::frame .vpane.lower.diff -relief sunken -borderwidth 1 -height 500
3241         .vpane.lower add .vpane.lower.diff
3242         .vpane.lower add .vpane.lower.commarea
3243         .vpane add .vpane.lower
3244         if {$use_ttk} {
3245                 .vpane.lower pane .vpane.lower.diff -weight 1
3246                 .vpane.lower pane .vpane.lower.commarea -weight 0
3247         } else {
3248                 .vpane.lower paneconfigure .vpane.lower.diff -stretch always
3249                 .vpane.lower paneconfigure .vpane.lower.commarea -stretch never
3250         }
3251 } else {
3252         frame .vpane.lower -height 300 -width 400
3253         frame .vpane.lower.commarea
3254         frame .vpane.lower.diff -relief sunken -borderwidth 1
3255         pack .vpane.lower.diff -fill both -expand 1
3256         pack .vpane.lower.commarea -side bottom -fill x
3257         .vpane add .vpane.lower
3258         .vpane paneconfigure .vpane.lower -sticky nsew
3259 }
3260
3261 # -- Commit Area Buttons
3262 #
3263 ${NS}::frame .vpane.lower.commarea.buttons
3264 ${NS}::label .vpane.lower.commarea.buttons.l -text {} \
3265         -anchor w \
3266         -justify left
3267 pack .vpane.lower.commarea.buttons.l -side top -fill x
3268 pack .vpane.lower.commarea.buttons -side left -fill y
3269
3270 ${NS}::button .vpane.lower.commarea.buttons.rescan -text [mc Rescan] \
3271         -command ui_do_rescan
3272 pack .vpane.lower.commarea.buttons.rescan -side top -fill x
3273 lappend disable_on_lock \
3274         {.vpane.lower.commarea.buttons.rescan conf -state}
3275
3276 ${NS}::button .vpane.lower.commarea.buttons.incall -text [mc "Stage Changed"] \
3277         -command do_add_all
3278 pack .vpane.lower.commarea.buttons.incall -side top -fill x
3279 lappend disable_on_lock \
3280         {.vpane.lower.commarea.buttons.incall conf -state}
3281
3282 if {![is_enabled nocommitmsg]} {
3283         ${NS}::button .vpane.lower.commarea.buttons.signoff -text [mc "Sign Off"] \
3284                 -command do_signoff
3285         pack .vpane.lower.commarea.buttons.signoff -side top -fill x
3286 }
3287
3288 ${NS}::button .vpane.lower.commarea.buttons.commit -text [commit_btn_caption] \
3289         -command do_commit
3290 pack .vpane.lower.commarea.buttons.commit -side top -fill x
3291 lappend disable_on_lock \
3292         {.vpane.lower.commarea.buttons.commit conf -state}
3293
3294 if {![is_enabled nocommit]} {
3295         ${NS}::button .vpane.lower.commarea.buttons.push -text [mc Push] \
3296                 -command do_push_anywhere
3297         pack .vpane.lower.commarea.buttons.push -side top -fill x
3298 }
3299
3300 # -- Commit Message Buffer
3301 #
3302 ${NS}::frame .vpane.lower.commarea.buffer
3303 ${NS}::frame .vpane.lower.commarea.buffer.header
3304 set ui_comm .vpane.lower.commarea.buffer.t
3305 set ui_coml .vpane.lower.commarea.buffer.header.l
3306
3307 if {![is_enabled nocommit]} {
3308         ${NS}::radiobutton .vpane.lower.commarea.buffer.header.new \
3309                 -text [mc "New Commit"] \
3310                 -command do_select_commit_type \
3311                 -variable selected_commit_type \
3312                 -value new
3313         lappend disable_on_lock \
3314                 [list .vpane.lower.commarea.buffer.header.new conf -state]
3315         ${NS}::radiobutton .vpane.lower.commarea.buffer.header.amend \
3316                 -text [mc "Amend Last Commit"] \
3317                 -command do_select_commit_type \
3318                 -variable selected_commit_type \
3319                 -value amend
3320         lappend disable_on_lock \
3321                 [list .vpane.lower.commarea.buffer.header.amend conf -state]
3322 }
3323
3324 ${NS}::label $ui_coml \
3325         -anchor w \
3326         -justify left
3327 proc trace_commit_type {varname args} {
3328         global ui_coml commit_type
3329         switch -glob -- $commit_type {
3330         initial       {set txt [mc "Initial Commit Message:"]}
3331         amend         {set txt [mc "Amended Commit Message:"]}
3332         amend-initial {set txt [mc "Amended Initial Commit Message:"]}
3333         amend-merge   {set txt [mc "Amended Merge Commit Message:"]}
3334         merge         {set txt [mc "Merge Commit Message:"]}
3335         *             {set txt [mc "Commit Message:"]}
3336         }
3337         $ui_coml conf -text $txt
3338 }
3339 trace add variable commit_type write trace_commit_type
3340 pack $ui_coml -side left -fill x
3341
3342 if {![is_enabled nocommit]} {
3343         pack .vpane.lower.commarea.buffer.header.amend -side right
3344         pack .vpane.lower.commarea.buffer.header.new -side right
3345 }
3346
3347 text $ui_comm -background white -foreground black \
3348         -borderwidth 1 \
3349         -undo true \
3350         -maxundo 20 \
3351         -autoseparators true \
3352         -relief sunken \
3353         -width $repo_config(gui.commitmsgwidth) -height 9 -wrap none \
3354         -font font_diff \
3355         -yscrollcommand {.vpane.lower.commarea.buffer.sby set}
3356 ${NS}::scrollbar .vpane.lower.commarea.buffer.sby \
3357         -command [list $ui_comm yview]
3358 pack .vpane.lower.commarea.buffer.header -side top -fill x
3359 pack .vpane.lower.commarea.buffer.sby -side right -fill y
3360 pack $ui_comm -side left -fill y
3361 pack .vpane.lower.commarea.buffer -side left -fill y
3362
3363 # -- Commit Message Buffer Context Menu
3364 #
3365 set ctxm .vpane.lower.commarea.buffer.ctxm
3366 menu $ctxm -tearoff 0
3367 $ctxm add command \
3368         -label [mc Cut] \
3369         -command {tk_textCut $ui_comm}
3370 $ctxm add command \
3371         -label [mc Copy] \
3372         -command {tk_textCopy $ui_comm}
3373 $ctxm add command \
3374         -label [mc Paste] \
3375         -command {tk_textPaste $ui_comm}
3376 $ctxm add command \
3377         -label [mc Delete] \
3378         -command {catch {$ui_comm delete sel.first sel.last}}
3379 $ctxm add separator
3380 $ctxm add command \
3381         -label [mc "Select All"] \
3382         -command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
3383 $ctxm add command \
3384         -label [mc "Copy All"] \
3385         -command {
3386                 $ui_comm tag add sel 0.0 end
3387                 tk_textCopy $ui_comm
3388                 $ui_comm tag remove sel 0.0 end
3389         }
3390 $ctxm add separator
3391 $ctxm add command \
3392         -label [mc "Sign Off"] \
3393         -command do_signoff
3394 set ui_comm_ctxm $ctxm
3395
3396 # -- Diff Header
3397 #
3398 proc trace_current_diff_path {varname args} {
3399         global current_diff_path diff_actions file_states
3400         if {$current_diff_path eq {}} {
3401                 set s {}
3402                 set f {}
3403                 set p {}
3404                 set o disabled
3405         } else {
3406                 set p $current_diff_path
3407                 set s [mapdesc [lindex $file_states($p) 0] $p]
3408                 set f [mc "File:"]
3409                 set p [escape_path $p]
3410                 set o normal
3411         }
3412
3413         .vpane.lower.diff.header.status configure -text $s
3414         .vpane.lower.diff.header.file configure -text $f
3415         .vpane.lower.diff.header.path configure -text $p
3416         foreach w $diff_actions {
3417                 uplevel #0 $w $o
3418         }
3419 }
3420 trace add variable current_diff_path write trace_current_diff_path
3421
3422 gold_frame .vpane.lower.diff.header
3423 tlabel .vpane.lower.diff.header.status \
3424         -background gold \
3425         -foreground black \
3426         -width $max_status_desc \
3427         -anchor w \
3428         -justify left
3429 tlabel .vpane.lower.diff.header.file \
3430         -background gold \
3431         -foreground black \
3432         -anchor w \
3433         -justify left
3434 tlabel .vpane.lower.diff.header.path \
3435         -background gold \
3436         -foreground black \
3437         -anchor w \
3438         -justify left
3439 pack .vpane.lower.diff.header.status -side left
3440 pack .vpane.lower.diff.header.file -side left
3441 pack .vpane.lower.diff.header.path -fill x
3442 set ctxm .vpane.lower.diff.header.ctxm
3443 menu $ctxm -tearoff 0
3444 $ctxm add command \
3445         -label [mc Copy] \
3446         -command {
3447                 clipboard clear
3448                 clipboard append \
3449                         -format STRING \
3450                         -type STRING \
3451                         -- $current_diff_path
3452         }
3453 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3454 bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"
3455
3456 # -- Diff Body
3457 #
3458 ${NS}::frame .vpane.lower.diff.body
3459 set ui_diff .vpane.lower.diff.body.t
3460 text $ui_diff -background white -foreground black \
3461         -borderwidth 0 \
3462         -width 80 -height 5 -wrap none \
3463         -font font_diff \
3464         -xscrollcommand {.vpane.lower.diff.body.sbx set} \
3465         -yscrollcommand {.vpane.lower.diff.body.sby set} \
3466         -state disabled
3467 catch {$ui_diff configure -tabstyle wordprocessor}
3468 ${NS}::scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
3469         -command [list $ui_diff xview]
3470 ${NS}::scrollbar .vpane.lower.diff.body.sby -orient vertical \
3471         -command [list $ui_diff yview]
3472 pack .vpane.lower.diff.body.sbx -side bottom -fill x
3473 pack .vpane.lower.diff.body.sby -side right -fill y
3474 pack $ui_diff -side left -fill both -expand 1
3475 pack .vpane.lower.diff.header -side top -fill x
3476 pack .vpane.lower.diff.body -side bottom -fill both -expand 1
3477
3478 foreach {n c} {0 black 1 red4 2 green4 3 yellow4 4 blue4 5 magenta4 6 cyan4 7 grey60} {
3479         $ui_diff tag configure clr4$n -background $c
3480         $ui_diff tag configure clri4$n -foreground $c
3481         $ui_diff tag configure clr3$n -foreground $c
3482         $ui_diff tag configure clri3$n -background $c
3483 }
3484 $ui_diff tag configure clr1 -font font_diffbold
3485 $ui_diff tag configure clr4 -underline 1
3486
3487 $ui_diff tag conf d_info -foreground blue -font font_diffbold
3488
3489 $ui_diff tag conf d_cr -elide true
3490 $ui_diff tag conf d_@ -font font_diffbold
3491 $ui_diff tag conf d_+ -foreground {#00a000}
3492 $ui_diff tag conf d_- -foreground red
3493
3494 $ui_diff tag conf d_++ -foreground {#00a000}
3495 $ui_diff tag conf d_-- -foreground red
3496 $ui_diff tag conf d_+s \
3497         -foreground {#00a000} \
3498         -background {#e2effa}
3499 $ui_diff tag conf d_-s \
3500         -foreground red \
3501         -background {#e2effa}
3502 $ui_diff tag conf d_s+ \
3503         -foreground {#00a000} \
3504         -background ivory1
3505 $ui_diff tag conf d_s- \
3506         -foreground red \
3507         -background ivory1
3508
3509 $ui_diff tag conf d< \
3510         -foreground orange \
3511         -font font_diffbold
3512 $ui_diff tag conf d= \
3513         -foreground orange \
3514         -font font_diffbold
3515 $ui_diff tag conf d> \
3516         -foreground orange \
3517         -font font_diffbold
3518
3519 $ui_diff tag raise sel
3520
3521 # -- Diff Body Context Menu
3522 #
3523
3524 proc create_common_diff_popup {ctxm} {
3525         $ctxm add command \
3526                 -label [mc Refresh] \
3527                 -command reshow_diff
3528         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3529         $ctxm add command \
3530                 -label [mc Copy] \
3531                 -command {tk_textCopy $ui_diff}
3532         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3533         $ctxm add command \
3534                 -label [mc "Select All"] \
3535                 -command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
3536         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3537         $ctxm add command \
3538                 -label [mc "Copy All"] \
3539                 -command {
3540                         $ui_diff tag add sel 0.0 end
3541                         tk_textCopy $ui_diff
3542                         $ui_diff tag remove sel 0.0 end
3543                 }
3544         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3545         $ctxm add separator
3546         $ctxm add command \
3547                 -label [mc "Decrease Font Size"] \
3548                 -command {incr_font_size font_diff -1}
3549         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3550         $ctxm add command \
3551                 -label [mc "Increase Font Size"] \
3552                 -command {incr_font_size font_diff 1}
3553         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3554         $ctxm add separator
3555         set emenu $ctxm.enc
3556         menu $emenu
3557         build_encoding_menu $emenu [list force_diff_encoding]
3558         $ctxm add cascade \
3559                 -label [mc "Encoding"] \
3560                 -menu $emenu
3561         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3562         $ctxm add separator
3563         $ctxm add command -label [mc "Options..."] \
3564                 -command do_options
3565 }
3566
3567 set ctxm .vpane.lower.diff.body.ctxm
3568 menu $ctxm -tearoff 0
3569 $ctxm add command \
3570         -label [mc "Apply/Reverse Hunk"] \
3571         -command {apply_hunk $cursorX $cursorY}
3572 set ui_diff_applyhunk [$ctxm index last]
3573 lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
3574 $ctxm add command \
3575         -label [mc "Apply/Reverse Line"] \
3576         -command {apply_range_or_line $cursorX $cursorY; do_rescan}
3577 set ui_diff_applyline [$ctxm index last]
3578 lappend diff_actions [list $ctxm entryconf $ui_diff_applyline -state]
3579 $ctxm add separator
3580 $ctxm add command \
3581         -label [mc "Show Less Context"] \
3582         -command show_less_context
3583 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3584 $ctxm add command \
3585         -label [mc "Show More Context"] \
3586         -command show_more_context
3587 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3588 $ctxm add separator
3589 create_common_diff_popup $ctxm
3590
3591 set ctxmmg .vpane.lower.diff.body.ctxmmg
3592 menu $ctxmmg -tearoff 0
3593 $ctxmmg add command \
3594         -label [mc "Run Merge Tool"] \
3595         -command {merge_resolve_tool}
3596 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3597 $ctxmmg add separator
3598 $ctxmmg add command \
3599         -label [mc "Use Remote Version"] \
3600         -command {merge_resolve_one 3}
3601 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3602 $ctxmmg add command \
3603         -label [mc "Use Local Version"] \
3604         -command {merge_resolve_one 2}
3605 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3606 $ctxmmg add command \
3607         -label [mc "Revert To Base"] \
3608         -command {merge_resolve_one 1}
3609 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3610 $ctxmmg add separator
3611 $ctxmmg add command \
3612         -label [mc "Show Less Context"] \
3613         -command show_less_context
3614 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3615 $ctxmmg add command \
3616         -label [mc "Show More Context"] \
3617         -command show_more_context
3618 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3619 $ctxmmg add separator
3620 create_common_diff_popup $ctxmmg
3621
3622 set ctxmsm .vpane.lower.diff.body.ctxmsm
3623 menu $ctxmsm -tearoff 0
3624 $ctxmsm add command \
3625         -label [mc "Visualize These Changes In The Submodule"] \
3626         -command {do_gitk -- true}
3627 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3628 $ctxmsm add command \
3629         -label [mc "Visualize Current Branch History In The Submodule"] \
3630         -command {do_gitk {} true}
3631 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3632 $ctxmsm add command \
3633         -label [mc "Visualize All Branch History In The Submodule"] \
3634         -command {do_gitk --all true}
3635 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3636 $ctxmsm add separator
3637 $ctxmsm add command \
3638         -label [mc "Start git gui In The Submodule"] \
3639         -command {do_git_gui}
3640 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3641 $ctxmsm add separator
3642 create_common_diff_popup $ctxmsm
3643
3644 proc has_textconv {path} {
3645         if {[is_config_false gui.textconv]} {
3646                 return 0
3647         }
3648         set filter [gitattr $path diff set]
3649         set textconv [get_config [join [list diff $filter textconv] .]]
3650         if {$filter ne {set} && $textconv ne {}} {
3651                 return 1
3652         } else {
3653                 return 0
3654         }
3655 }
3656
3657 proc popup_diff_menu {ctxm ctxmmg ctxmsm x y X Y} {
3658         global current_diff_path file_states
3659         set ::cursorX $x
3660         set ::cursorY $y
3661         if {[info exists file_states($current_diff_path)]} {
3662                 set state [lindex $file_states($current_diff_path) 0]
3663         } else {
3664                 set state {__}
3665         }
3666         if {[string first {U} $state] >= 0} {
3667                 tk_popup $ctxmmg $X $Y
3668         } elseif {$::is_submodule_diff} {
3669                 tk_popup $ctxmsm $X $Y
3670         } else {
3671                 set has_range [expr {[$::ui_diff tag nextrange sel 0.0] != {}}]
3672                 if {$::ui_index eq $::current_diff_side} {
3673                         set l [mc "Unstage Hunk From Commit"]
3674                         if {$has_range} {
3675                                 set t [mc "Unstage Lines From Commit"]
3676                         } else {
3677                                 set t [mc "Unstage Line From Commit"]
3678                         }
3679                 } else {
3680                         set l [mc "Stage Hunk For Commit"]
3681                         if {$has_range} {
3682                                 set t [mc "Stage Lines For Commit"]
3683                         } else {
3684                                 set t [mc "Stage Line For Commit"]
3685                         }
3686                 }
3687                 if {$::is_3way_diff
3688                         || $current_diff_path eq {}
3689                         || {__} eq $state
3690                         || {_O} eq $state
3691                         || [string match {?T} $state]
3692                         || [string match {T?} $state]
3693                         || [has_textconv $current_diff_path]} {
3694                         set s disabled
3695                 } else {
3696                         set s normal
3697                 }
3698                 $ctxm entryconf $::ui_diff_applyhunk -state $s -label $l
3699                 $ctxm entryconf $::ui_diff_applyline -state $s -label $t
3700                 tk_popup $ctxm $X $Y
3701         }
3702 }
3703 bind_button3 $ui_diff [list popup_diff_menu $ctxm $ctxmmg $ctxmsm %x %y %X %Y]
3704
3705 # -- Status Bar
3706 #
3707 set main_status [::status_bar::new .status]
3708 pack .status -anchor w -side bottom -fill x
3709 $main_status show [mc "Initializing..."]
3710
3711 # -- Load geometry
3712 #
3713 proc on_ttk_pane_mapped {w pane pos} {
3714         bind $w <Map> {}
3715         after 0 [list after idle [list $w sashpos $pane $pos]]
3716 }
3717 proc on_tk_pane_mapped {w pane x y} {
3718         bind $w <Map> {}
3719         after 0 [list after idle [list $w sash place $pane $x $y]]
3720 }
3721 proc on_application_mapped {} {
3722         global repo_config use_ttk
3723         bind . <Map> {}
3724         set gm $repo_config(gui.geometry)
3725         if {$use_ttk} {
3726                 bind .vpane <Map> \
3727                     [list on_ttk_pane_mapped %W 0 [lindex $gm 1]]
3728                 bind .vpane.files <Map> \
3729                     [list on_ttk_pane_mapped %W 0 [lindex $gm 2]]
3730         } else {
3731                 bind .vpane <Map> \
3732                     [list on_tk_pane_mapped %W 0 \
3733                          [lindex $gm 1] \
3734                          [lindex [.vpane sash coord 0] 1]]
3735                 bind .vpane.files <Map> \
3736                     [list on_tk_pane_mapped %W 0 \
3737                          [lindex [.vpane.files sash coord 0] 0] \
3738                          [lindex $gm 2]]
3739         }
3740         wm geometry . [lindex $gm 0]
3741 }
3742 if {[info exists repo_config(gui.geometry)]} {
3743         bind . <Map> [list on_application_mapped]
3744         wm geometry . [lindex $repo_config(gui.geometry) 0]
3745 }
3746
3747 # -- Load window state
3748 #
3749 if {[info exists repo_config(gui.wmstate)]} {
3750         catch {wm state . $repo_config(gui.wmstate)}
3751 }
3752
3753 # -- Key Bindings
3754 #
3755 bind $ui_comm <$M1B-Key-Return> {do_commit;break}
3756 bind $ui_comm <$M1B-Key-t> {do_add_selection;break}
3757 bind $ui_comm <$M1B-Key-T> {do_add_selection;break}
3758 bind $ui_comm <$M1B-Key-u> {do_unstage_selection;break}
3759 bind $ui_comm <$M1B-Key-U> {do_unstage_selection;break}
3760 bind $ui_comm <$M1B-Key-j> {do_revert_selection;break}
3761 bind $ui_comm <$M1B-Key-J> {do_revert_selection;break}
3762 bind $ui_comm <$M1B-Key-i> {do_add_all;break}
3763 bind $ui_comm <$M1B-Key-I> {do_add_all;break}
3764 bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
3765 bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
3766 bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
3767 bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
3768 bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
3769 bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
3770 bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3771 bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3772 bind $ui_comm <$M1B-Key-minus> {show_less_context;break}
3773 bind $ui_comm <$M1B-Key-KP_Subtract> {show_less_context;break}
3774 bind $ui_comm <$M1B-Key-equal> {show_more_context;break}
3775 bind $ui_comm <$M1B-Key-plus> {show_more_context;break}
3776 bind $ui_comm <$M1B-Key-KP_Add> {show_more_context;break}
3777
3778 bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
3779 bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
3780 bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
3781 bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
3782 bind $ui_diff <$M1B-Key-v> {break}
3783 bind $ui_diff <$M1B-Key-V> {break}
3784 bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3785 bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3786 bind $ui_diff <$M1B-Key-j> {do_revert_selection;break}
3787 bind $ui_diff <$M1B-Key-J> {do_revert_selection;break}
3788 bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
3789 bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
3790 bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
3791 bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
3792 bind $ui_diff <Key-k>         {catch {%W yview scroll -1 units};break}
3793 bind $ui_diff <Key-j>         {catch {%W yview scroll  1 units};break}
3794 bind $ui_diff <Key-h>         {catch {%W xview scroll -1 units};break}
3795 bind $ui_diff <Key-l>         {catch {%W xview scroll  1 units};break}
3796 bind $ui_diff <Control-Key-b> {catch {%W yview scroll -1 pages};break}
3797 bind $ui_diff <Control-Key-f> {catch {%W yview scroll  1 pages};break}
3798 bind $ui_diff <Button-1>   {focus %W}
3799
3800 if {[is_enabled branch]} {
3801         bind . <$M1B-Key-n> branch_create::dialog
3802         bind . <$M1B-Key-N> branch_create::dialog
3803         bind . <$M1B-Key-o> branch_checkout::dialog
3804         bind . <$M1B-Key-O> branch_checkout::dialog
3805         bind . <$M1B-Key-m> merge::dialog
3806         bind . <$M1B-Key-M> merge::dialog
3807 }
3808 if {[is_enabled transport]} {
3809         bind . <$M1B-Key-p> do_push_anywhere
3810         bind . <$M1B-Key-P> do_push_anywhere
3811 }
3812
3813 bind .   <Key-F5>     ui_do_rescan
3814 bind .   <$M1B-Key-r> ui_do_rescan
3815 bind .   <$M1B-Key-R> ui_do_rescan
3816 bind .   <$M1B-Key-s> do_signoff
3817 bind .   <$M1B-Key-S> do_signoff
3818 bind .   <$M1B-Key-t> do_add_selection
3819 bind .   <$M1B-Key-T> do_add_selection
3820 bind .   <$M1B-Key-u> do_unstage_selection
3821 bind .   <$M1B-Key-U> do_unstage_selection
3822 bind .   <$M1B-Key-j> do_revert_selection
3823 bind .   <$M1B-Key-J> do_revert_selection
3824 bind .   <$M1B-Key-i> do_add_all
3825 bind .   <$M1B-Key-I> do_add_all
3826 bind .   <$M1B-Key-minus> {show_less_context;break}
3827 bind .   <$M1B-Key-KP_Subtract> {show_less_context;break}
3828 bind .   <$M1B-Key-equal> {show_more_context;break}
3829 bind .   <$M1B-Key-plus> {show_more_context;break}
3830 bind .   <$M1B-Key-KP_Add> {show_more_context;break}
3831 bind .   <$M1B-Key-Return> do_commit
3832 foreach i [list $ui_index $ui_workdir] {
3833         bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
3834         bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
3835         bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
3836 }
3837 unset i
3838
3839 set file_lists($ui_index) [list]
3840 set file_lists($ui_workdir) [list]
3841
3842 wm title . "[appname] ([reponame]) [file normalize $_gitworktree]"
3843 focus -force $ui_comm
3844
3845 # -- Warn the user about environmental problems.  Cygwin's Tcl
3846 #    does *not* pass its env array onto any processes it spawns.
3847 #    This means that git processes get none of our environment.
3848 #
3849 if {[is_Cygwin]} {
3850         set ignored_env 0
3851         set suggest_user {}
3852         set msg [mc "Possible environment issues exist.
3853
3854 The following environment variables are probably
3855 going to be ignored by any Git subprocess run
3856 by %s:
3857
3858 " [appname]]
3859         foreach name [array names env] {
3860                 switch -regexp -- $name {
3861                 {^GIT_INDEX_FILE$} -
3862                 {^GIT_OBJECT_DIRECTORY$} -
3863                 {^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
3864                 {^GIT_DIFF_OPTS$} -
3865                 {^GIT_EXTERNAL_DIFF$} -
3866                 {^GIT_PAGER$} -
3867                 {^GIT_TRACE$} -
3868                 {^GIT_CONFIG$} -
3869                 {^GIT_(AUTHOR|COMMITTER)_DATE$} {
3870                         append msg " - $name\n"
3871                         incr ignored_env
3872                 }
3873                 {^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
3874                         append msg " - $name\n"
3875                         incr ignored_env
3876                         set suggest_user $name
3877                 }
3878                 }
3879         }
3880         if {$ignored_env > 0} {
3881                 append msg [mc "
3882 This is due to a known issue with the
3883 Tcl binary distributed by Cygwin."]
3884
3885                 if {$suggest_user ne {}} {
3886                         append msg [mc "
3887
3888 A good replacement for %s
3889 is placing values for the user.name and
3890 user.email settings into your personal
3891 ~/.gitconfig file.
3892 " $suggest_user]
3893                 }
3894                 warn_popup $msg
3895         }
3896         unset ignored_env msg suggest_user name
3897 }
3898
3899 # -- Only initialize complex UI if we are going to stay running.
3900 #
3901 if {[is_enabled transport]} {
3902         load_all_remotes
3903
3904         set n [.mbar.remote index end]
3905         populate_remotes_menu
3906         set n [expr {[.mbar.remote index end] - $n}]
3907         if {$n > 0} {
3908                 if {[.mbar.remote type 0] eq "tearoff"} { incr n }
3909                 .mbar.remote insert $n separator
3910         }
3911         unset n
3912 }
3913
3914 if {[winfo exists $ui_comm]} {
3915         set GITGUI_BCK_exists [load_message GITGUI_BCK utf-8]
3916
3917         # -- If both our backup and message files exist use the
3918         #    newer of the two files to initialize the buffer.
3919         #
3920         if {$GITGUI_BCK_exists} {
3921                 set m [gitdir GITGUI_MSG]
3922                 if {[file isfile $m]} {
3923                         if {[file mtime [gitdir GITGUI_BCK]] > [file mtime $m]} {
3924                                 catch {file delete [gitdir GITGUI_MSG]}
3925                         } else {
3926                                 $ui_comm delete 0.0 end
3927                                 $ui_comm edit reset
3928                                 $ui_comm edit modified false
3929                                 catch {file delete [gitdir GITGUI_BCK]}
3930                                 set GITGUI_BCK_exists 0
3931                         }
3932                 }
3933                 unset m
3934         }
3935
3936         proc backup_commit_buffer {} {
3937                 global ui_comm GITGUI_BCK_exists
3938
3939                 set m [$ui_comm edit modified]
3940                 if {$m || $GITGUI_BCK_exists} {
3941                         set msg [string trim [$ui_comm get 0.0 end]]
3942                         regsub -all -line {[ \r\t]+$} $msg {} msg
3943
3944                         if {$msg eq {}} {
3945                                 if {$GITGUI_BCK_exists} {
3946                                         catch {file delete [gitdir GITGUI_BCK]}
3947                                         set GITGUI_BCK_exists 0
3948                                 }
3949                         } elseif {$m} {
3950                                 catch {
3951                                         set fd [open [gitdir GITGUI_BCK] w]
3952                                         fconfigure $fd -encoding utf-8
3953                                         puts -nonewline $fd $msg
3954                                         close $fd
3955                                         set GITGUI_BCK_exists 1
3956                                 }
3957                         }
3958
3959                         $ui_comm edit modified false
3960                 }
3961
3962                 set ::GITGUI_BCK_i [after 2000 backup_commit_buffer]
3963         }
3964
3965         backup_commit_buffer
3966
3967         # -- If the user has aspell available we can drive it
3968         #    in pipe mode to spellcheck the commit message.
3969         #
3970         set spell_cmd [list |]
3971         set spell_dict [get_config gui.spellingdictionary]
3972         lappend spell_cmd aspell
3973         if {$spell_dict ne {}} {
3974                 lappend spell_cmd --master=$spell_dict
3975         }
3976         lappend spell_cmd --mode=none
3977         lappend spell_cmd --encoding=utf-8
3978         lappend spell_cmd pipe
3979         if {$spell_dict eq {none}
3980          || [catch {set spell_fd [open $spell_cmd r+]} spell_err]} {
3981                 bind_button3 $ui_comm [list tk_popup $ui_comm_ctxm %X %Y]
3982         } else {
3983                 set ui_comm_spell [spellcheck::init \
3984                         $spell_fd \
3985                         $ui_comm \
3986                         $ui_comm_ctxm \
3987                 ]
3988         }
3989         unset -nocomplain spell_cmd spell_fd spell_err spell_dict
3990 }
3991
3992 lock_index begin-read
3993 if {![winfo ismapped .]} {
3994         wm deiconify .
3995 }
3996 after 1 {
3997         if {[is_enabled initialamend]} {
3998                 force_amend
3999         } else {
4000                 do_rescan
4001         }
4002
4003         if {[is_enabled nocommitmsg]} {
4004                 $ui_comm configure -state disabled -background gray
4005         }
4006 }
4007 if {[is_enabled multicommit] && ![is_config_false gui.gcwarning]} {
4008         after 1000 hint_gc
4009 }
4010 if {[is_enabled retcode]} {
4011         bind . <Destroy> {+terminate_me %W}
4012 }
4013 if {$picked && [is_config_true gui.autoexplore]} {
4014         do_explore
4015 }
4016
4017 # Local variables:
4018 # mode: tcl
4019 # indent-tabs-mode: t
4020 # tab-width: 4
4021 # End: