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 $err
  43         exit 1
  44 }
  45
  46 catch {rename send {}} ; # What an evil concept...
  47
  48 ######################################################################
  49 ##
  50 ## locate our library
  51
  52 set oguilib {@@GITGUI_LIBDIR@@}
  53 set oguirel {@@GITGUI_RELATIVE@@}
  54 if {$oguirel eq {1}} {
  55         set oguilib [file dirname [file normalize $argv0]]
  56         if {[file tail $oguilib] eq {git-core}} {
  57                 set oguilib [file dirname $oguilib]
  58         }
  59         set oguilib [file dirname $oguilib]
  60         set oguilib [file join $oguilib share git-gui lib]
  61         set oguimsg [file join $oguilib msgs]
  62 } elseif {[string match @@* $oguirel]} {
  63         set oguilib [file join [file dirname [file normalize $argv0]] lib]
  64         set oguimsg [file join [file dirname [file normalize $argv0]] po]
  65 } else {
  66         set oguimsg [file join $oguilib msgs]
  67 }
  68 unset oguirel
  69
  70 ######################################################################
  71 ##
  72 ## enable verbose loading?
  73
  74 if {![catch {set _verbose $env(GITGUI_VERBOSE)}]} {
  75         unset _verbose
  76         rename auto_load real__auto_load
  77         proc auto_load {name args} {
  78                 puts stderr "auto_load $name"
  79                 return [uplevel 1 real__auto_load $name $args]
  80         }
  81         rename source real__source
  82         proc source {name} {
  83                 puts stderr "source    $name"
  84                 uplevel 1 real__source $name
  85         }
  86         if {[tk windowingsystem] eq "win32"} { console show }
  87 }
  88
  89 ######################################################################
  90 ##
  91 ## Internationalization (i18n) through msgcat and gettext. See
  92 ## http://www.gnu.org/software/gettext/manual/html_node/Tcl.html
  93
  94 package require msgcat
  95
  96 # Check for Windows 7 MUI language pack (missed by msgcat < 1.4.4)
  97 if {[tk windowingsystem] eq "win32"
  98         && [package vcompare [package provide msgcat] 1.4.4] < 0
  99 } then {
 100         proc _mc_update_locale {} {
 101                 set key {HKEY_CURRENT_USER\Control Panel\Desktop}
 102                 if {![catch {
 103                         package require registry
 104                         set uilocale [registry get $key "PreferredUILanguages"]
 105                         msgcat::ConvertLocale [string map {- _} [lindex $uilocale 0]]
 106                 } uilocale]} {
 107                         if {[string length $uilocale] > 0} {
 108                                 msgcat::mclocale $uilocale
 109                         }
 110                 }
 111         }
 112         _mc_update_locale
 113 }
 114
 115 proc _mc_trim {fmt} {
 116         set cmk [string first @@ $fmt]
 117         if {$cmk > 0} {
 118                 return [string range $fmt 0 [expr {$cmk - 1}]]
 119         }
 120         return $fmt
 121 }
 122
 123 proc mc {en_fmt args} {
 124         set fmt [_mc_trim [::msgcat::mc $en_fmt]]
 125         if {[catch {set msg [eval [list format $fmt] $args]} err]} {
 126                 set msg [eval [list format [_mc_trim $en_fmt]] $args]
 127         }
 128         return $msg
 129 }
 130
 131 proc strcat {args} {
 132         return [join $args {}]
 133 }
 134
 135 ::msgcat::mcload $oguimsg
 136 unset oguimsg
 137
 138 ######################################################################
 139 ##
 140 ## read only globals
 141
 142 set _appname {Git Gui}
 143 set _gitdir {}
 144 set _gitworktree {}
 145 set _isbare {}
 146 set _gitexec {}
 147 set _githtmldir {}
 148 set _reponame {}
 149 set _iscygwin {}
 150 set _search_path {}
 151 set _shellpath {@@SHELL_PATH@@}
 152
 153 set _trace [lsearch -exact $argv --trace]
 154 if {$_trace >= 0} {
 155         set argv [lreplace $argv $_trace $_trace]
 156         set _trace 1
 157         if {[tk windowingsystem] eq "win32"} { console show }
 158 } else {
 159         set _trace 0
 160 }
 161
 162 # variable for the last merged branch (useful for a default when deleting
 163 # branches).
 164 set _last_merged_branch {}
 165
 166 proc shellpath {} {
 167         global _shellpath env
 168         if {[string match @@* $_shellpath]} {
 169                 if {[info exists env(SHELL)]} {
 170                         return $env(SHELL)
 171                 } else {
 172                         return /bin/sh
 173                 }
 174         }
 175         return $_shellpath
 176 }
 177
 178 proc appname {} {
 179         global _appname
 180         return $_appname
 181 }
 182
 183 proc gitdir {args} {
 184         global _gitdir
 185         if {$args eq {}} {
 186                 return $_gitdir
 187         }
 188         return [eval [list file join $_gitdir] $args]
 189 }
 190
 191 proc gitexec {args} {
 192         global _gitexec
 193         if {$_gitexec eq {}} {
 194                 if {[catch {set _gitexec [git --exec-path]} err]} {
 195                         error "Git not installed?\n\n$err"
 196                 }
 197                 if {[is_Cygwin]} {
 198                         set _gitexec [exec cygpath \
 199                                 --windows \
 200                                 --absolute \
 201                                 $_gitexec]
 202                 } else {
 203                         set _gitexec [file normalize $_gitexec]
 204                 }
 205         }
 206         if {$args eq {}} {
 207                 return $_gitexec
 208         }
 209         return [eval [list file join $_gitexec] $args]
 210 }
 211
 212 proc githtmldir {args} {
 213         global _githtmldir
 214         if {$_githtmldir eq {}} {
 215                 if {[catch {set _githtmldir [git --html-path]}]} {
 216                         # Git not installed or option not yet supported
 217                         return {}
 218                 }
 219                 if {[is_Cygwin]} {
 220                         set _githtmldir [exec cygpath \
 221                                 --windows \
 222                                 --absolute \
 223                                 $_githtmldir]
 224                 } else {
 225                         set _githtmldir [file normalize $_githtmldir]
 226                 }
 227         }
 228         if {$args eq {}} {
 229                 return $_githtmldir
 230         }
 231         return [eval [list file join $_githtmldir] $args]
 232 }
 233
 234 proc reponame {} {
 235         return $::_reponame
 236 }
 237
 238 proc is_MacOSX {} {
 239         if {[tk windowingsystem] eq {aqua}} {
 240                 return 1
 241         }
 242         return 0
 243 }
 244
 245 proc is_Windows {} {
 246         if {$::tcl_platform(platform) eq {windows}} {
 247                 return 1
 248         }
 249         return 0
 250 }
 251
 252 proc is_Cygwin {} {
 253         global _iscygwin
 254         if {$_iscygwin eq {}} {
 255                 if {$::tcl_platform(platform) eq {windows}} {
 256                         if {[catch {set p [exec cygpath --windir]} err]} {
 257                                 set _iscygwin 0
 258                         } else {
 259                                 set _iscygwin 1
 260                         }
 261                 } else {
 262                         set _iscygwin 0
 263                 }
 264         }
 265         return $_iscygwin
 266 }
 267
 268 proc is_enabled {option} {
 269         global enabled_options
 270         if {[catch {set on $enabled_options($option)}]} {return 0}
 271         return $on
 272 }
 273
 274 proc enable_option {option} {
 275         global enabled_options
 276         set enabled_options($option) 1
 277 }
 278
 279 proc disable_option {option} {
 280         global enabled_options
 281         set enabled_options($option) 0
 282 }
 283
 284 ######################################################################
 285 ##
 286 ## config
 287
 288 proc is_many_config {name} {
 289         switch -glob -- $name {
 290         gui.recentrepo -
 291         remote.*.fetch -
 292         remote.*.push
 293                 {return 1}
 294         *
 295                 {return 0}
 296         }
 297 }
 298
 299 proc is_config_true {name} {
 300         global repo_config
 301         if {[catch {set v $repo_config($name)}]} {
 302                 return 0
 303         }
 304         set v [string tolower $v]
 305         if {$v eq {} || $v eq {true} || $v eq {1} || $v eq {yes} || $v eq {on}} {
 306                 return 1
 307         } else {
 308                 return 0
 309         }
 310 }
 311
 312 proc is_config_false {name} {
 313         global repo_config
 314         if {[catch {set v $repo_config($name)}]} {
 315                 return 0
 316         }
 317         set v [string tolower $v]
 318         if {$v eq {false} || $v eq {0} || $v eq {no} || $v eq {off}} {
 319                 return 1
 320         } else {
 321                 return 0
 322         }
 323 }
 324
 325 proc get_config {name} {
 326         global repo_config
 327         if {[catch {set v $repo_config($name)}]} {
 328                 return {}
 329         } else {
 330                 return $v
 331         }
 332 }
 333
 334 proc is_bare {} {
 335         global _isbare
 336         global _gitdir
 337         global _gitworktree
 338
 339         if {$_isbare eq {}} {
 340                 if {[catch {
 341                         set _bare [git rev-parse --is-bare-repository]
 342                         switch  -- $_bare {
 343                         true { set _isbare 1 }
 344                         false { set _isbare 0}
 345                         default { throw }
 346                         }
 347                 }]} {
 348                         if {[is_config_true core.bare]
 349                                 || ($_gitworktree eq {}
 350                                         && [lindex [file split $_gitdir] end] ne {.git})} {
 351                                 set _isbare 1
 352                         } else {
 353                                 set _isbare 0
 354                         }
 355                 }
 356         }
 357         return $_isbare
 358 }
 359
 360 ######################################################################
 361 ##
 362 ## handy utils
 363
 364 proc _trace_exec {cmd} {
 365         if {!$::_trace} return
 366         set d {}
 367         foreach v $cmd {
 368                 if {$d ne {}} {
 369                         append d { }
 370                 }
 371                 if {[regexp {[ \t\r\n'"$?*]} $v]} {
 372                         set v [sq $v]
 373                 }
 374                 append d $v
 375         }
 376         puts stderr $d
 377 }
 378
 379 #'"  fix poor old emacs font-lock mode
 380
 381 proc _git_cmd {name} {
 382         global _git_cmd_path
 383
 384         if {[catch {set v $_git_cmd_path($name)}]} {
 385                 switch -- $name {
 386                   version   -
 387                 --version   -
 388                 --exec-path { return [list $::_git $name] }
 389                 }
 390
 391                 set p [gitexec git-$name$::_search_exe]
 392                 if {[file exists $p]} {
 393                         set v [list $p]
 394                 } elseif {[is_Windows] && [file exists [gitexec git-$name]]} {
 395                         # Try to determine what sort of magic will make
 396                         # git-$name go and do its thing, because native
 397                         # Tcl on Windows doesn't know it.
 398                         #
 399                         set p [gitexec git-$name]
 400                         set f [open $p r]
 401                         set s [gets $f]
 402                         close $f
 403
 404                         switch -glob -- [lindex $s 0] {
 405                         #!*sh     { set i sh     }
 406                         #!*perl   { set i perl   }
 407                         #!*python { set i python }
 408                         default   { error "git-$name is not supported: $s" }
 409                         }
 410
 411                         upvar #0 _$i interp
 412                         if {![info exists interp]} {
 413                                 set interp [_which $i]
 414                         }
 415                         if {$interp eq {}} {
 416                                 error "git-$name requires $i (not in PATH)"
 417                         }
 418                         set v [concat [list $interp] [lrange $s 1 end] [list $p]]
 419                 } else {
 420                         # Assume it is builtin to git somehow and we
 421                         # aren't actually able to see a file for it.
 422                         #
 423                         set v [list $::_git $name]
 424                 }
 425                 set _git_cmd_path($name) $v
 426         }
 427         return $v
 428 }
 429
 430 proc _which {what args} {
 431         global env _search_exe _search_path
 432
 433         if {$_search_path eq {}} {
 434                 if {[is_Cygwin] && [regexp {^(/|\.:)} $env(PATH)]} {
 435                         set _search_path [split [exec cygpath \
 436                                 --windows \
 437                                 --path \
 438                                 --absolute \
 439                                 $env(PATH)] {;}]
 440                         set _search_exe .exe
 441                 } elseif {[is_Windows]} {
 442                         set gitguidir [file dirname [info script]]
 443                         regsub -all ";" $gitguidir "\\;" gitguidir
 444                         set env(PATH) "$gitguidir;$env(PATH)"
 445                         set _search_path [split $env(PATH) {;}]
 446                         set _search_exe .exe
 447                 } else {
 448                         set _search_path [split $env(PATH) :]
 449                         set _search_exe {}
 450                 }
 451         }
 452
 453         if {[is_Windows] && [lsearch -exact $args -script] >= 0} {
 454                 set suffix {}
 455         } else {
 456                 set suffix $_search_exe
 457         }
 458
 459         foreach p $_search_path {
 460                 set p [file join $p $what$suffix]
 461                 if {[file exists $p]} {
 462                         return [file normalize $p]
 463                 }
 464         }
 465         return {}
 466 }
 467
 468 # Test a file for a hashbang to identify executable scripts on Windows.
 469 proc is_shellscript {filename} {
 470         if {![file exists $filename]} {return 0}
 471         set f [open $filename r]
 472         fconfigure $f -encoding binary
 473         set magic [read $f 2]
 474         close $f
 475         return [expr {$magic eq "#!"}]
 476 }
 477
 478 # Run a command connected via pipes on stdout.
 479 # This is for use with textconv filters and uses sh -c "..." to allow it to
 480 # contain a command with arguments. On windows we must check for shell
 481 # scripts specifically otherwise just call the filter command.
 482 proc open_cmd_pipe {cmd path} {
 483         global env
 484         if {![file executable [shellpath]]} {
 485                 set exe [auto_execok [lindex $cmd 0]]
 486                 if {[is_shellscript [lindex $exe 0]]} {
 487                         set run [linsert [auto_execok sh] end -c "$cmd \"\$0\"" $path]
 488                 } else {
 489                         set run [concat $exe [lrange $cmd 1 end] $path]
 490                 }
 491         } else {
 492                 set run [list [shellpath] -c "$cmd \"\$0\"" $path]
 493         }
 494         return [open |$run r]
 495 }
 496
 497 proc _lappend_nice {cmd_var} {
 498         global _nice
 499         upvar $cmd_var cmd
 500
 501         if {![info exists _nice]} {
 502                 set _nice [_which nice]
 503                 if {[catch {exec $_nice git version}]} {
 504                         set _nice {}
 505                 } elseif {[is_Windows] && [file dirname $_nice] ne [file dirname $::_git]} {
 506                         set _nice {}
 507                 }
 508         }
 509         if {$_nice ne {}} {
 510                 lappend cmd $_nice
 511         }
 512 }
 513
 514 proc git {args} {
 515         set opt [list]
 516
 517         while {1} {
 518                 switch -- [lindex $args 0] {
 519                 --nice {
 520                         _lappend_nice opt
 521                 }
 522
 523                 default {
 524                         break
 525                 }
 526
 527                 }
 528
 529                 set args [lrange $args 1 end]
 530         }
 531
 532         set cmdp [_git_cmd [lindex $args 0]]
 533         set args [lrange $args 1 end]
 534
 535         _trace_exec [concat $opt $cmdp $args]
 536         set result [eval exec $opt $cmdp $args]
 537         if {$::_trace} {
 538                 puts stderr "< $result"
 539         }
 540         return $result
 541 }
 542
 543 proc _open_stdout_stderr {cmd} {
 544         _trace_exec $cmd
 545         if {[catch {
 546                         set fd [open [concat [list | ] $cmd] r]
 547                 } err]} {
 548                 if {   [lindex $cmd end] eq {2>@1}
 549                     && $err eq {can not find channel named "1"}
 550                         } {
 551                         # Older versions of Tcl 8.4 don't have this 2>@1 IO
 552                         # redirect operator.  Fallback to |& cat for those.
 553                         # The command was not actually started, so its safe
 554                         # to try to start it a second time.
 555                         #
 556                         set fd [open [concat \
 557                                 [list | ] \
 558                                 [lrange $cmd 0 end-1] \
 559                                 [list |& cat] \
 560                                 ] r]
 561                 } else {
 562                         error $err
 563                 }
 564         }
 565         fconfigure $fd -eofchar {}
 566         return $fd
 567 }
 568
 569 proc git_read {args} {
 570         set opt [list]
 571
 572         while {1} {
 573                 switch -- [lindex $args 0] {
 574                 --nice {
 575                         _lappend_nice opt
 576                 }
 577
 578                 --stderr {
 579                         lappend args 2>@1
 580                 }
 581
 582                 default {
 583                         break
 584                 }
 585
 586                 }
 587
 588                 set args [lrange $args 1 end]
 589         }
 590
 591         set cmdp [_git_cmd [lindex $args 0]]
 592         set args [lrange $args 1 end]
 593
 594         return [_open_stdout_stderr [concat $opt $cmdp $args]]
 595 }
 596
 597 proc git_write {args} {
 598         set opt [list]
 599
 600         while {1} {
 601                 switch -- [lindex $args 0] {
 602                 --nice {
 603                         _lappend_nice opt
 604                 }
 605
 606                 default {
 607                         break
 608                 }
 609
 610                 }
 611
 612                 set args [lrange $args 1 end]
 613         }
 614
 615         set cmdp [_git_cmd [lindex $args 0]]
 616         set args [lrange $args 1 end]
 617
 618         _trace_exec [concat $opt $cmdp $args]
 619         return [open [concat [list | ] $opt $cmdp $args] w]
 620 }
 621
 622 proc githook_read {hook_name args} {
 623         set pchook [gitdir hooks $hook_name]
 624         lappend args 2>@1
 625
 626         # On Windows [file executable] might lie so we need to ask
 627         # the shell if the hook is executable.  Yes that's annoying.
 628         #
 629         if {[is_Windows]} {
 630                 upvar #0 _sh interp
 631                 if {![info exists interp]} {
 632                         set interp [_which sh]
 633                 }
 634                 if {$interp eq {}} {
 635                         error "hook execution requires sh (not in PATH)"
 636                 }
 637
 638                 set scr {if test -x "$1";then exec "$@";fi}
 639                 set sh_c [list $interp -c $scr $interp $pchook]
 640                 return [_open_stdout_stderr [concat $sh_c $args]]
 641         }
 642
 643         if {[file executable $pchook]} {
 644                 return [_open_stdout_stderr [concat [list $pchook] $args]]
 645         }
 646
 647         return {}
 648 }
 649
 650 proc kill_file_process {fd} {
 651         set process [pid $fd]
 652
 653         catch {
 654                 if {[is_Windows]} {
 655                         # Use a Cygwin-specific flag to allow killing
 656                         # native Windows processes
 657                         exec kill -f $process
 658                 } else {
 659                         exec kill $process
 660                 }
 661         }
 662 }
 663
 664 proc gitattr {path attr default} {
 665         if {[catch {set r [git check-attr $attr -- $path]}]} {
 666                 set r unspecified
 667         } else {
 668                 set r [join [lrange [split $r :] 2 end] :]
 669                 regsub {^ } $r {} r
 670         }
 671         if {$r eq {unspecified}} {
 672                 return $default
 673         }
 674         return $r
 675 }
 676
 677 proc sq {value} {
 678         regsub -all ' $value "'\\''" value
 679         return "'$value'"
 680 }
 681
 682 proc load_current_branch {} {
 683         global current_branch is_detached
 684
 685         set fd [open [gitdir HEAD] r]
 686         if {[gets $fd ref] < 1} {
 687                 set ref {}
 688         }
 689         close $fd
 690
 691         set pfx {ref: refs/heads/}
 692         set len [string length $pfx]
 693         if {[string equal -length $len $pfx $ref]} {
 694                 # We're on a branch.  It might not exist.  But
 695                 # HEAD looks good enough to be a branch.
 696                 #
 697                 set current_branch [string range $ref $len end]
 698                 set is_detached 0
 699         } else {
 700                 # Assume this is a detached head.
 701                 #
 702                 set current_branch HEAD
 703                 set is_detached 1
 704         }
 705 }
 706
 707 auto_load tk_optionMenu
 708 rename tk_optionMenu real__tkOptionMenu
 709 proc tk_optionMenu {w varName args} {
 710         set m [eval real__tkOptionMenu $w $varName $args]
 711         $m configure -font font_ui
 712         $w configure -font font_ui
 713         return $m
 714 }
 715
 716 proc rmsel_tag {text} {
 717         $text tag conf sel \
 718                 -background [$text cget -background] \
 719                 -foreground [$text cget -foreground] \
 720                 -borderwidth 0
 721         $text tag conf in_sel -background lightgray
 722         bind $text <Motion> break
 723         return $text
 724 }
 725
 726 wm withdraw .
 727 set root_exists 0
 728 bind . <Visibility> {
 729         bind . <Visibility> {}
 730         set root_exists 1
 731 }
 732
 733 if {[is_Windows]} {
 734         wm iconbitmap . -default $oguilib/git-gui.ico
 735         set ::tk::AlwaysShowSelection 1
 736         bind . <Control-F2> {console show}
 737
 738         # Spoof an X11 display for SSH
 739         if {![info exists env(DISPLAY)]} {
 740                 set env(DISPLAY) :9999
 741         }
 742 } else {
 743         catch {
 744                 image create photo gitlogo -width 16 -height 16
 745
 746                 gitlogo put #33CC33 -to  7  0  9  2
 747                 gitlogo put #33CC33 -to  4  2 12  4
 748                 gitlogo put #33CC33 -to  7  4  9  6
 749                 gitlogo put #CC3333 -to  4  6 12  8
 750                 gitlogo put gray26  -to  4  9  6 10
 751                 gitlogo put gray26  -to  3 10  6 12
 752                 gitlogo put gray26  -to  8  9 13 11
 753                 gitlogo put gray26  -to  8 11 10 12
 754                 gitlogo put gray26  -to 11 11 13 14
 755                 gitlogo put gray26  -to  3 12  5 14
 756                 gitlogo put gray26  -to  5 13
 757                 gitlogo put gray26  -to 10 13
 758                 gitlogo put gray26  -to  4 14 12 15
 759                 gitlogo put gray26  -to  5 15 11 16
 760                 gitlogo redither
 761
 762                 image create photo gitlogo32 -width 32 -height 32
 763                 gitlogo32 copy gitlogo -zoom 2 2
 764
 765                 wm iconphoto . -default gitlogo gitlogo32
 766         }
 767 }
 768
 769 ######################################################################
 770 ##
 771 ## config defaults
 772
 773 set cursor_ptr arrow
 774 font create font_ui
 775 if {[lsearch -exact [font names] TkDefaultFont] != -1} {
 776         eval [linsert [font actual TkDefaultFont] 0 font configure font_ui]
 777         eval [linsert [font actual TkFixedFont] 0 font create font_diff]
 778 } else {
 779         font create font_diff -family Courier -size 10
 780         catch {
 781                 label .dummy
 782                 eval font configure font_ui [font actual [.dummy cget -font]]
 783                 destroy .dummy
 784         }
 785 }
 786
 787 font create font_uiitalic
 788 font create font_uibold
 789 font create font_diffbold
 790 font create font_diffitalic
 791
 792 foreach class {Button Checkbutton Entry Label
 793                 Labelframe Listbox Message
 794                 Radiobutton Spinbox Text} {
 795         option add *$class.font font_ui
 796 }
 797 if {![is_MacOSX]} {
 798         option add *Menu.font font_ui
 799         option add *Entry.borderWidth 1 startupFile
 800         option add *Entry.relief sunken startupFile
 801         option add *RadioButton.anchor w startupFile
 802 }
 803 unset class
 804
 805 if {[is_Windows] || [is_MacOSX]} {
 806         option add *Menu.tearOff 0
 807 }
 808
 809 if {[is_MacOSX]} {
 810         set M1B M1
 811         set M1T Cmd
 812 } else {
 813         set M1B Control
 814         set M1T Ctrl
 815 }
 816
 817 proc bind_button3 {w cmd} {
 818         bind $w <Any-Button-3> $cmd
 819         if {[is_MacOSX]} {
 820                 # Mac OS X sends Button-2 on right click through three-button mouse,
 821                 # or through trackpad right-clicking (two-finger touch + click).
 822                 bind $w <Any-Button-2> $cmd
 823                 bind $w <Control-Button-1> $cmd
 824         }
 825 }
 826
 827 proc apply_config {} {
 828         global repo_config font_descs
 829
 830         foreach option $font_descs {
 831                 set name [lindex $option 0]
 832                 set font [lindex $option 1]
 833                 if {[catch {
 834                         set need_weight 1
 835                         foreach {cn cv} $repo_config(gui.$name) {
 836                                 if {$cn eq {-weight}} {
 837                                         set need_weight 0
 838                                 }
 839                                 font configure $font $cn $cv
 840                         }
 841                         if {$need_weight} {
 842                                 font configure $font -weight normal
 843                         }
 844                         } err]} {
 845                         error_popup [strcat [mc "Invalid font specified in %s:" "gui.$name"] "\n\n$err"]
 846                 }
 847                 foreach {cn cv} [font configure $font] {
 848                         font configure ${font}bold $cn $cv
 849                         font configure ${font}italic $cn $cv
 850                 }
 851                 font configure ${font}bold -weight bold
 852                 font configure ${font}italic -slant italic
 853         }
 854
 855         global use_ttk NS
 856         set use_ttk 0
 857         set NS {}
 858         if {$repo_config(gui.usettk)} {
 859                 set use_ttk [package vsatisfies [package provide Tk] 8.5]
 860                 if {$use_ttk} {
 861                         set NS ttk
 862                         bind [winfo class .] <<ThemeChanged>> [list InitTheme]
 863                         pave_toplevel .
 864                 }
 865         }
 866 }
 867
 868 set default_config(branch.autosetupmerge) true
 869 set default_config(merge.tool) {}
 870 set default_config(mergetool.keepbackup) true
 871 set default_config(merge.diffstat) true
 872 set default_config(merge.summary) false
 873 set default_config(merge.verbosity) 2
 874 set default_config(user.name) {}
 875 set default_config(user.email) {}
 876
 877 set default_config(gui.encoding) [encoding system]
 878 set default_config(gui.matchtrackingbranch) false
 879 set default_config(gui.textconv) true
 880 set default_config(gui.pruneduringfetch) false
 881 set default_config(gui.trustmtime) false
 882 set default_config(gui.fastcopyblame) false
 883 set default_config(gui.copyblamethreshold) 40
 884 set default_config(gui.blamehistoryctx) 7
 885 set default_config(gui.diffcontext) 5
 886 set default_config(gui.diffopts) {}
 887 set default_config(gui.commitmsgwidth) 75
 888 set default_config(gui.newbranchtemplate) {}
 889 set default_config(gui.spellingdictionary) {}
 890 set default_config(gui.fontui) [font configure font_ui]
 891 set default_config(gui.fontdiff) [font configure font_diff]
 892 # TODO: this option should be added to the git-config documentation
 893 set default_config(gui.maxfilesdisplayed) 5000
 894 set default_config(gui.usettk) 1
 895 set default_config(gui.warndetachedcommit) 1
 896 set font_descs {
 897         {fontui   font_ui   {mc "Main Font"}}
 898         {fontdiff font_diff {mc "Diff/Console Font"}}
 899 }
 900 set default_config(gui.stageuntracked) ask
 901
 902 ######################################################################
 903 ##
 904 ## find git
 905
 906 set _git  [_which git]
 907 if {$_git eq {}} {
 908         catch {wm withdraw .}
 909         tk_messageBox \
 910                 -icon error \
 911                 -type ok \
 912                 -title [mc "git-gui: fatal error"] \
 913                 -message [mc "Cannot find git in PATH."]
 914         exit 1
 915 }
 916
 917 ######################################################################
 918 ##
 919 ## version check
 920
 921 if {[catch {set _git_version [git --version]} err]} {
 922         catch {wm withdraw .}
 923         tk_messageBox \
 924                 -icon error \
 925                 -type ok \
 926                 -title [mc "git-gui: fatal error"] \
 927                 -message "Cannot determine Git version:
 928
 929 $err
 930
 931 [appname] requires Git 1.5.0 or later."
 932         exit 1
 933 }
 934 if {![regsub {^git version } $_git_version {} _git_version]} {
 935         catch {wm withdraw .}
 936         tk_messageBox \
 937                 -icon error \
 938                 -type ok \
 939                 -title [mc "git-gui: fatal error"] \
 940                 -message [strcat [mc "Cannot parse Git version string:"] "\n\n$_git_version"]
 941         exit 1
 942 }
 943
 944 proc get_trimmed_version {s} {
 945     set r {}
 946     foreach x [split $s -._] {
 947         if {[string is integer -strict $x]} {
 948             lappend r $x
 949         } else {
 950             break
 951         }
 952     }
 953     return [join $r .]
 954 }
 955 set _real_git_version $_git_version
 956 set _git_version [get_trimmed_version $_git_version]
 957
 958 if {![regexp {^[1-9]+(\.[0-9]+)+$} $_git_version]} {
 959         catch {wm withdraw .}
 960         if {[tk_messageBox \
 961                 -icon warning \
 962                 -type yesno \
 963                 -default no \
 964                 -title "[appname]: warning" \
 965                  -message [mc "Git version cannot be determined.
 966
 967 %s claims it is version '%s'.
 968
 969 %s requires at least Git 1.5.0 or later.
 970
 971 Assume '%s' is version 1.5.0?
 972 " $_git $_real_git_version [appname] $_real_git_version]] eq {yes}} {
 973                 set _git_version 1.5.0
 974         } else {
 975                 exit 1
 976         }
 977 }
 978 unset _real_git_version
 979
 980 proc git-version {args} {
 981         global _git_version
 982
 983         switch [llength $args] {
 984         0 {
 985                 return $_git_version
 986         }
 987
 988         2 {
 989                 set op [lindex $args 0]
 990                 set vr [lindex $args 1]
 991                 set cm [package vcompare $_git_version $vr]
 992                 return [expr $cm $op 0]
 993         }
 994
 995         4 {
 996                 set type [lindex $args 0]
 997                 set name [lindex $args 1]
 998                 set parm [lindex $args 2]
 999                 set body [lindex $args 3]
1000
1001                 if {($type ne {proc} && $type ne {method})} {
1002                         error "Invalid arguments to git-version"
1003                 }
1004                 if {[llength $body] < 2 || [lindex $body end-1] ne {default}} {
1005                         error "Last arm of $type $name must be default"
1006                 }
1007
1008                 foreach {op vr cb} [lrange $body 0 end-2] {
1009                         if {[git-version $op $vr]} {
1010                                 return [uplevel [list $type $name $parm $cb]]
1011                         }
1012                 }
1013
1014                 return [uplevel [list $type $name $parm [lindex $body end]]]
1015         }
1016
1017         default {
1018                 error "git-version >= x"
1019         }
1020
1021         }
1022 }
1023
1024 if {[git-version < 1.5]} {
1025         catch {wm withdraw .}
1026         tk_messageBox \
1027                 -icon error \
1028                 -type ok \
1029                 -title [mc "git-gui: fatal error"] \
1030                 -message "[appname] requires Git 1.5.0 or later.
1031
1032 You are using [git-version]:
1033
1034 [git --version]"
1035         exit 1
1036 }
1037
1038 ######################################################################
1039 ##
1040 ## configure our library
1041
1042 set idx [file join $oguilib tclIndex]
1043 if {[catch {set fd [open $idx r]} err]} {
1044         catch {wm withdraw .}
1045         tk_messageBox \
1046                 -icon error \
1047                 -type ok \
1048                 -title [mc "git-gui: fatal error"] \
1049                 -message $err
1050         exit 1
1051 }
1052 if {[gets $fd] eq {# Autogenerated by git-gui Makefile}} {
1053         set idx [list]
1054         while {[gets $fd n] >= 0} {
1055                 if {$n ne {} && ![string match #* $n]} {
1056                         lappend idx $n
1057                 }
1058         }
1059 } else {
1060         set idx {}
1061 }
1062 close $fd
1063
1064 if {$idx ne {}} {
1065         set loaded [list]
1066         foreach p $idx {
1067                 if {[lsearch -exact $loaded $p] >= 0} continue
1068                 source [file join $oguilib $p]
1069                 lappend loaded $p
1070         }
1071         unset loaded p
1072 } else {
1073         set auto_path [concat [list $oguilib] $auto_path]
1074 }
1075 unset -nocomplain idx fd
1076
1077 ######################################################################
1078 ##
1079 ## config file parsing
1080
1081 git-version proc _parse_config {arr_name args} {
1082         >= 1.5.3 {
1083                 upvar $arr_name arr
1084                 array unset arr
1085                 set buf {}
1086                 catch {
1087                         set fd_rc [eval \
1088                                 [list git_read config] \
1089                                 $args \
1090                                 [list --null --list]]
1091                         fconfigure $fd_rc -translation binary
1092                         set buf [read $fd_rc]
1093                         close $fd_rc
1094                 }
1095                 foreach line [split $buf "\0"] {
1096                         if {[regexp {^([^\n]+)\n(.*)$} $line line name value]} {
1097                                 if {[is_many_config $name]} {
1098                                         lappend arr($name) $value
1099                                 } else {
1100                                         set arr($name) $value
1101                                 }
1102                         } elseif {[regexp {^([^\n]+)$} $line line name]} {
1103                                 # no value given, but interpreting them as
1104                                 # boolean will be handled as true
1105                                 set arr($name) {}
1106                         }
1107                 }
1108         }
1109         default {
1110                 upvar $arr_name arr
1111                 array unset arr
1112                 catch {
1113                         set fd_rc [eval [list git_read config --list] $args]
1114                         while {[gets $fd_rc line] >= 0} {
1115                                 if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
1116                                         if {[is_many_config $name]} {
1117                                                 lappend arr($name) $value
1118                                         } else {
1119                                                 set arr($name) $value
1120                                         }
1121                                 } elseif {[regexp {^([^=]+)$} $line line name]} {
1122                                         # no value given, but interpreting them as
1123                                         # boolean will be handled as true
1124                                         set arr($name) {}
1125                                 }
1126                         }
1127                         close $fd_rc
1128                 }
1129         }
1130 }
1131
1132 proc load_config {include_global} {
1133         global repo_config global_config system_config default_config
1134
1135         if {$include_global} {
1136                 _parse_config system_config --system
1137                 _parse_config global_config --global
1138         }
1139         _parse_config repo_config
1140
1141         foreach name [array names default_config] {
1142                 if {[catch {set v $system_config($name)}]} {
1143                         set system_config($name) $default_config($name)
1144                 }
1145         }
1146         foreach name [array names system_config] {
1147                 if {[catch {set v $global_config($name)}]} {
1148                         set global_config($name) $system_config($name)
1149                 }
1150                 if {[catch {set v $repo_config($name)}]} {
1151                         set repo_config($name) $system_config($name)
1152                 }
1153         }
1154 }
1155
1156 ######################################################################
1157 ##
1158 ## feature option selection
1159
1160 if {[regexp {^git-(.+)$} [file tail $argv0] _junk subcommand]} {
1161         unset _junk
1162 } else {
1163         set subcommand gui
1164 }
1165 if {$subcommand eq {gui.sh}} {
1166         set subcommand gui
1167 }
1168 if {$subcommand eq {gui} && [llength $argv] > 0} {
1169         set subcommand [lindex $argv 0]
1170         set argv [lrange $argv 1 end]
1171 }
1172
1173 enable_option multicommit
1174 enable_option branch
1175 enable_option transport
1176 disable_option bare
1177
1178 switch -- $subcommand {
1179 browser -
1180 blame {
1181         enable_option bare
1182
1183         disable_option multicommit
1184         disable_option branch
1185         disable_option transport
1186 }
1187 citool {
1188         enable_option singlecommit
1189         enable_option retcode
1190
1191         disable_option multicommit
1192         disable_option branch
1193         disable_option transport
1194
1195         while {[llength $argv] > 0} {
1196                 set a [lindex $argv 0]
1197                 switch -- $a {
1198                 --amend {
1199                         enable_option initialamend
1200                 }
1201                 --nocommit {
1202                         enable_option nocommit
1203                         enable_option nocommitmsg
1204                 }
1205                 --commitmsg {
1206                         disable_option nocommitmsg
1207                 }
1208                 default {
1209                         break
1210                 }
1211                 }
1212
1213                 set argv [lrange $argv 1 end]
1214         }
1215 }
1216 }
1217
1218 ######################################################################
1219 ##
1220 ## execution environment
1221
1222 set have_tk85 [expr {[package vcompare $tk_version "8.5"] >= 0}]
1223
1224 # Suggest our implementation of askpass, if none is set
1225 if {![info exists env(SSH_ASKPASS)]} {
1226         set env(SSH_ASKPASS) [gitexec git-gui--askpass]
1227 }
1228
1229 ######################################################################
1230 ##
1231 ## repository setup
1232
1233 set picked 0
1234 if {[catch {
1235                 set _gitdir $env(GIT_DIR)
1236                 set _prefix {}
1237                 }]
1238         && [catch {
1239                 # beware that from the .git dir this sets _gitdir to .
1240                 # and _prefix to the empty string
1241                 set _gitdir [git rev-parse --git-dir]
1242                 set _prefix [git rev-parse --show-prefix]
1243         } err]} {
1244         load_config 1
1245         apply_config
1246         choose_repository::pick
1247         set picked 1
1248 }
1249
1250 # we expand the _gitdir when it's just a single dot (i.e. when we're being
1251 # run from the .git dir itself) lest the routines to find the worktree
1252 # get confused
1253 if {$_gitdir eq "."} {
1254         set _gitdir [pwd]
1255 }
1256
1257 if {![file isdirectory $_gitdir] && [is_Cygwin]} {
1258         catch {set _gitdir [exec cygpath --windows $_gitdir]}
1259 }
1260 if {![file isdirectory $_gitdir]} {
1261         catch {wm withdraw .}
1262         error_popup [strcat [mc "Git directory not found:"] "\n\n$_gitdir"]
1263         exit 1
1264 }
1265 # _gitdir exists, so try loading the config
1266 load_config 0
1267 apply_config
1268
1269 # v1.7.0 introduced --show-toplevel to return the canonical work-tree
1270 if {[package vsatisfies $_git_version 1.7.0]} {
1271         set _gitworktree [git rev-parse --show-toplevel]
1272 } else {
1273         # try to set work tree from environment, core.worktree or use
1274         # cdup to obtain a relative path to the top of the worktree. If
1275         # run from the top, the ./ prefix ensures normalize expands pwd.
1276         if {[catch { set _gitworktree $env(GIT_WORK_TREE) }]} {
1277                 set _gitworktree [get_config core.worktree]
1278                 if {$_gitworktree eq ""} {
1279                         set _gitworktree [file normalize ./[git rev-parse --show-cdup]]
1280                 }
1281         }
1282 }
1283
1284 if {$_prefix ne {}} {
1285         if {$_gitworktree eq {}} {
1286                 regsub -all {[^/]+/} $_prefix ../ cdup
1287         } else {
1288                 set cdup $_gitworktree
1289         }
1290         if {[catch {cd $cdup} err]} {
1291                 catch {wm withdraw .}
1292                 error_popup [strcat [mc "Cannot move to top of working directory:"] "\n\n$err"]
1293                 exit 1
1294         }
1295         set _gitworktree [pwd]
1296         unset cdup
1297 } elseif {![is_enabled bare]} {
1298         if {[is_bare]} {
1299                 catch {wm withdraw .}
1300                 error_popup [strcat [mc "Cannot use bare repository:"] "\n\n$_gitdir"]
1301                 exit 1
1302         }
1303         if {$_gitworktree eq {}} {
1304                 set _gitworktree [file dirname $_gitdir]
1305         }
1306         if {[catch {cd $_gitworktree} err]} {
1307                 catch {wm withdraw .}
1308                 error_popup [strcat [mc "No working directory"] " $_gitworktree:\n\n$err"]
1309                 exit 1
1310         }
1311         set _gitworktree [pwd]
1312 }
1313 set _reponame [file split [file normalize $_gitdir]]
1314 if {[lindex $_reponame end] eq {.git}} {
1315         set _reponame [lindex $_reponame end-1]
1316 } else {
1317         set _reponame [lindex $_reponame end]
1318 }
1319
1320 set env(GIT_DIR) $_gitdir
1321 set env(GIT_WORK_TREE) $_gitworktree
1322
1323 ######################################################################
1324 ##
1325 ## global init
1326
1327 set current_diff_path {}
1328 set current_diff_side {}
1329 set diff_actions [list]
1330
1331 set HEAD {}
1332 set PARENT {}
1333 set MERGE_HEAD [list]
1334 set commit_type {}
1335 set empty_tree {}
1336 set current_branch {}
1337 set is_detached 0
1338 set current_diff_path {}
1339 set is_3way_diff 0
1340 set is_submodule_diff 0
1341 set is_conflict_diff 0
1342 set selected_commit_type new
1343 set diff_empty_count 0
1344
1345 set nullid "0000000000000000000000000000000000000000"
1346 set nullid2 "0000000000000000000000000000000000000001"
1347
1348 ######################################################################
1349 ##
1350 ## task management
1351
1352 set rescan_active 0
1353 set diff_active 0
1354 set last_clicked {}
1355
1356 set disable_on_lock [list]
1357 set index_lock_type none
1358
1359 proc lock_index {type} {
1360         global index_lock_type disable_on_lock
1361
1362         if {$index_lock_type eq {none}} {
1363                 set index_lock_type $type
1364                 foreach w $disable_on_lock {
1365                         uplevel #0 $w disabled
1366                 }
1367                 return 1
1368         } elseif {$index_lock_type eq "begin-$type"} {
1369                 set index_lock_type $type
1370                 return 1
1371         }
1372         return 0
1373 }
1374
1375 proc unlock_index {} {
1376         global index_lock_type disable_on_lock
1377
1378         set index_lock_type none
1379         foreach w $disable_on_lock {
1380                 uplevel #0 $w normal
1381         }
1382 }
1383
1384 ######################################################################
1385 ##
1386 ## status
1387
1388 proc repository_state {ctvar hdvar mhvar} {
1389         global current_branch
1390         upvar $ctvar ct $hdvar hd $mhvar mh
1391
1392         set mh [list]
1393
1394         load_current_branch
1395         if {[catch {set hd [git rev-parse --verify HEAD]}]} {
1396                 set hd {}
1397                 set ct initial
1398                 return
1399         }
1400
1401         set merge_head [gitdir MERGE_HEAD]
1402         if {[file exists $merge_head]} {
1403                 set ct merge
1404                 set fd_mh [open $merge_head r]
1405                 while {[gets $fd_mh line] >= 0} {
1406                         lappend mh $line
1407                 }
1408                 close $fd_mh
1409                 return
1410         }
1411
1412         set ct normal
1413 }
1414
1415 proc PARENT {} {
1416         global PARENT empty_tree
1417
1418         set p [lindex $PARENT 0]
1419         if {$p ne {}} {
1420                 return $p
1421         }
1422         if {$empty_tree eq {}} {
1423                 set empty_tree [git mktree << {}]
1424         }
1425         return $empty_tree
1426 }
1427
1428 proc force_amend {} {
1429         global selected_commit_type
1430         global HEAD PARENT MERGE_HEAD commit_type
1431
1432         repository_state newType newHEAD newMERGE_HEAD
1433         set HEAD $newHEAD
1434         set PARENT $newHEAD
1435         set MERGE_HEAD $newMERGE_HEAD
1436         set commit_type $newType
1437
1438         set selected_commit_type amend
1439         do_select_commit_type
1440 }
1441
1442 proc rescan {after {honor_trustmtime 1}} {
1443         global HEAD PARENT MERGE_HEAD commit_type
1444         global ui_index ui_workdir ui_comm
1445         global rescan_active file_states
1446         global repo_config
1447
1448         if {$rescan_active > 0 || ![lock_index read]} return
1449
1450         repository_state newType newHEAD newMERGE_HEAD
1451         if {[string match amend* $commit_type]
1452                 && $newType eq {normal}
1453                 && $newHEAD eq $HEAD} {
1454         } else {
1455                 set HEAD $newHEAD
1456                 set PARENT $newHEAD
1457                 set MERGE_HEAD $newMERGE_HEAD
1458                 set commit_type $newType
1459         }
1460
1461         array unset file_states
1462
1463         if {!$::GITGUI_BCK_exists &&
1464                 (![$ui_comm edit modified]
1465                 || [string trim [$ui_comm get 0.0 end]] eq {})} {
1466                 if {[string match amend* $commit_type]} {
1467                 } elseif {[load_message GITGUI_MSG utf-8]} {
1468                 } elseif {[run_prepare_commit_msg_hook]} {
1469                 } elseif {[load_message MERGE_MSG]} {
1470                 } elseif {[load_message SQUASH_MSG]} {
1471                 }
1472                 $ui_comm edit reset
1473                 $ui_comm edit modified false
1474         }
1475
1476         if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
1477                 rescan_stage2 {} $after
1478         } else {
1479                 set rescan_active 1
1480                 ui_status [mc "Refreshing file status..."]
1481                 set fd_rf [git_read update-index \
1482                         -q \
1483                         --unmerged \
1484                         --ignore-missing \
1485                         --refresh \
1486                         ]
1487                 fconfigure $fd_rf -blocking 0 -translation binary
1488                 fileevent $fd_rf readable \
1489                         [list rescan_stage2 $fd_rf $after]
1490         }
1491 }
1492
1493 if {[is_Cygwin]} {
1494         set is_git_info_exclude {}
1495         proc have_info_exclude {} {
1496                 global is_git_info_exclude
1497
1498                 if {$is_git_info_exclude eq {}} {
1499                         if {[catch {exec test -f [gitdir info exclude]}]} {
1500                                 set is_git_info_exclude 0
1501                         } else {
1502                                 set is_git_info_exclude 1
1503                         }
1504                 }
1505                 return $is_git_info_exclude
1506         }
1507 } else {
1508         proc have_info_exclude {} {
1509                 return [file readable [gitdir info exclude]]
1510         }
1511 }
1512
1513 proc rescan_stage2 {fd after} {
1514         global rescan_active buf_rdi buf_rdf buf_rlo
1515
1516         if {$fd ne {}} {
1517                 read $fd
1518                 if {![eof $fd]} return
1519                 close $fd
1520         }
1521
1522         if {[package vsatisfies $::_git_version 1.6.3]} {
1523                 set ls_others [list --exclude-standard]
1524         } else {
1525                 set ls_others [list --exclude-per-directory=.gitignore]
1526                 if {[have_info_exclude]} {
1527                         lappend ls_others "--exclude-from=[gitdir info exclude]"
1528                 }
1529                 set user_exclude [get_config core.excludesfile]
1530                 if {$user_exclude ne {} && [file readable $user_exclude]} {
1531                         lappend ls_others "--exclude-from=[file normalize $user_exclude]"
1532                 }
1533         }
1534
1535         set buf_rdi {}
1536         set buf_rdf {}
1537         set buf_rlo {}
1538
1539         set rescan_active 3
1540         ui_status [mc "Scanning for modified files ..."]
1541         set fd_di [git_read diff-index --cached -z [PARENT]]
1542         set fd_df [git_read diff-files -z]
1543         set fd_lo [eval git_read ls-files --others -z $ls_others]
1544
1545         fconfigure $fd_di -blocking 0 -translation binary -encoding binary
1546         fconfigure $fd_df -blocking 0 -translation binary -encoding binary
1547         fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
1548         fileevent $fd_di readable [list read_diff_index $fd_di $after]
1549         fileevent $fd_df readable [list read_diff_files $fd_df $after]
1550         fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
1551 }
1552
1553 proc load_message {file {encoding {}}} {
1554         global ui_comm
1555
1556         set f [gitdir $file]
1557         if {[file isfile $f]} {
1558                 if {[catch {set fd [open $f r]}]} {
1559                         return 0
1560                 }
1561                 fconfigure $fd -eofchar {}
1562                 if {$encoding ne {}} {
1563                         fconfigure $fd -encoding $encoding
1564                 }
1565                 set content [string trim [read $fd]]
1566                 close $fd
1567                 regsub -all -line {[ \r\t]+$} $content {} content
1568                 $ui_comm delete 0.0 end
1569                 $ui_comm insert end $content
1570                 return 1
1571         }
1572         return 0
1573 }
1574
1575 proc run_prepare_commit_msg_hook {} {
1576         global pch_error
1577
1578         # prepare-commit-msg requires PREPARE_COMMIT_MSG exist.  From git-gui
1579         # it will be .git/MERGE_MSG (merge), .git/SQUASH_MSG (squash), or an
1580         # empty file but existent file.
1581
1582         set fd_pcm [open [gitdir PREPARE_COMMIT_MSG] a]
1583
1584         if {[file isfile [gitdir MERGE_MSG]]} {
1585                 set pcm_source "merge"
1586                 set fd_mm [open [gitdir MERGE_MSG] r]
1587                 puts -nonewline $fd_pcm [read $fd_mm]
1588                 close $fd_mm
1589         } elseif {[file isfile [gitdir SQUASH_MSG]]} {
1590                 set pcm_source "squash"
1591                 set fd_sm [open [gitdir SQUASH_MSG] r]
1592                 puts -nonewline $fd_pcm [read $fd_sm]
1593                 close $fd_sm
1594         } else {
1595                 set pcm_source ""
1596         }
1597
1598         close $fd_pcm
1599
1600         set fd_ph [githook_read prepare-commit-msg \
1601                         [gitdir PREPARE_COMMIT_MSG] $pcm_source]
1602         if {$fd_ph eq {}} {
1603                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1604                 return 0;
1605         }
1606
1607         ui_status [mc "Calling prepare-commit-msg hook..."]
1608         set pch_error {}
1609
1610         fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
1611         fileevent $fd_ph readable \
1612                 [list prepare_commit_msg_hook_wait $fd_ph]
1613
1614         return 1;
1615 }
1616
1617 proc prepare_commit_msg_hook_wait {fd_ph} {
1618         global pch_error
1619
1620         append pch_error [read $fd_ph]
1621         fconfigure $fd_ph -blocking 1
1622         if {[eof $fd_ph]} {
1623                 if {[catch {close $fd_ph}]} {
1624                         ui_status [mc "Commit declined by prepare-commit-msg hook."]
1625                         hook_failed_popup prepare-commit-msg $pch_error
1626                         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1627                         exit 1
1628                 } else {
1629                         load_message PREPARE_COMMIT_MSG
1630                 }
1631                 set pch_error {}
1632                 catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1633                 return
1634         }
1635         fconfigure $fd_ph -blocking 0
1636         catch {file delete [gitdir PREPARE_COMMIT_MSG]}
1637 }
1638
1639 proc read_diff_index {fd after} {
1640         global buf_rdi
1641
1642         append buf_rdi [read $fd]
1643         set c 0
1644         set n [string length $buf_rdi]
1645         while {$c < $n} {
1646                 set z1 [string first "\0" $buf_rdi $c]
1647                 if {$z1 == -1} break
1648                 incr z1
1649                 set z2 [string first "\0" $buf_rdi $z1]
1650                 if {$z2 == -1} break
1651
1652                 incr c
1653                 set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
1654                 set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
1655                 merge_state \
1656                         [encoding convertfrom $p] \
1657                         [lindex $i 4]? \
1658                         [list [lindex $i 0] [lindex $i 2]] \
1659                         [list]
1660                 set c $z2
1661                 incr c
1662         }
1663         if {$c < $n} {
1664                 set buf_rdi [string range $buf_rdi $c end]
1665         } else {
1666                 set buf_rdi {}
1667         }
1668
1669         rescan_done $fd buf_rdi $after
1670 }
1671
1672 proc read_diff_files {fd after} {
1673         global buf_rdf
1674
1675         append buf_rdf [read $fd]
1676         set c 0
1677         set n [string length $buf_rdf]
1678         while {$c < $n} {
1679                 set z1 [string first "\0" $buf_rdf $c]
1680                 if {$z1 == -1} break
1681                 incr z1
1682                 set z2 [string first "\0" $buf_rdf $z1]
1683                 if {$z2 == -1} break
1684
1685                 incr c
1686                 set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
1687                 set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
1688                 merge_state \
1689                         [encoding convertfrom $p] \
1690                         ?[lindex $i 4] \
1691                         [list] \
1692                         [list [lindex $i 0] [lindex $i 2]]
1693                 set c $z2
1694                 incr c
1695         }
1696         if {$c < $n} {
1697                 set buf_rdf [string range $buf_rdf $c end]
1698         } else {
1699                 set buf_rdf {}
1700         }
1701
1702         rescan_done $fd buf_rdf $after
1703 }
1704
1705 proc read_ls_others {fd after} {
1706         global buf_rlo
1707
1708         append buf_rlo [read $fd]
1709         set pck [split $buf_rlo "\0"]
1710         set buf_rlo [lindex $pck end]
1711         foreach p [lrange $pck 0 end-1] {
1712                 set p [encoding convertfrom $p]
1713                 if {[string index $p end] eq {/}} {
1714                         set p [string range $p 0 end-1]
1715                 }
1716                 merge_state $p ?O
1717         }
1718         rescan_done $fd buf_rlo $after
1719 }
1720
1721 proc rescan_done {fd buf after} {
1722         global rescan_active current_diff_path
1723         global file_states repo_config
1724         upvar $buf to_clear
1725
1726         if {![eof $fd]} return
1727         set to_clear {}
1728         close $fd
1729         if {[incr rescan_active -1] > 0} return
1730
1731         prune_selection
1732         unlock_index
1733         display_all_files
1734         if {$current_diff_path ne {}} { reshow_diff $after }
1735         if {$current_diff_path eq {}} { select_first_diff $after }
1736 }
1737
1738 proc prune_selection {} {
1739         global file_states selected_paths
1740
1741         foreach path [array names selected_paths] {
1742                 if {[catch {set still_here $file_states($path)}]} {
1743                         unset selected_paths($path)
1744                 }
1745         }
1746 }
1747
1748 ######################################################################
1749 ##
1750 ## ui helpers
1751
1752 proc mapicon {w state path} {
1753         global all_icons
1754
1755         if {[catch {set r $all_icons($state$w)}]} {
1756                 puts "error: no icon for $w state={$state} $path"
1757                 return file_plain
1758         }
1759         return $r
1760 }
1761
1762 proc mapdesc {state path} {
1763         global all_descs
1764
1765         if {[catch {set r $all_descs($state)}]} {
1766                 puts "error: no desc for state={$state} $path"
1767                 return $state
1768         }
1769         return $r
1770 }
1771
1772 proc ui_status {msg} {
1773         global main_status
1774         if {[info exists main_status]} {
1775                 $main_status show $msg
1776         }
1777 }
1778
1779 proc ui_ready {{test {}}} {
1780         global main_status
1781         if {[info exists main_status]} {
1782                 $main_status show [mc "Ready."] $test
1783         }
1784 }
1785
1786 proc escape_path {path} {
1787         regsub -all {\\} $path "\\\\" path
1788         regsub -all "\n" $path "\\n" path
1789         return $path
1790 }
1791
1792 proc short_path {path} {
1793         return [escape_path [lindex [file split $path] end]]
1794 }
1795
1796 set next_icon_id 0
1797 set null_sha1 [string repeat 0 40]
1798
1799 proc merge_state {path new_state {head_info {}} {index_info {}}} {
1800         global file_states next_icon_id null_sha1
1801
1802         set s0 [string index $new_state 0]
1803         set s1 [string index $new_state 1]
1804
1805         if {[catch {set info $file_states($path)}]} {
1806                 set state __
1807                 set icon n[incr next_icon_id]
1808         } else {
1809                 set state [lindex $info 0]
1810                 set icon [lindex $info 1]
1811                 if {$head_info eq {}}  {set head_info  [lindex $info 2]}
1812                 if {$index_info eq {}} {set index_info [lindex $info 3]}
1813         }
1814
1815         if     {$s0 eq {?}} {set s0 [string index $state 0]} \
1816         elseif {$s0 eq {_}} {set s0 _}
1817
1818         if     {$s1 eq {?}} {set s1 [string index $state 1]} \
1819         elseif {$s1 eq {_}} {set s1 _}
1820
1821         if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
1822                 set head_info [list 0 $null_sha1]
1823         } elseif {$s0 ne {_} && [string index $state 0] eq {_}
1824                 && $head_info eq {}} {
1825                 set head_info $index_info
1826         } elseif {$s0 eq {_} && [string index $state 0] ne {_}} {
1827                 set index_info $head_info
1828                 set head_info {}
1829         }
1830
1831         set file_states($path) [list $s0$s1 $icon \
1832                 $head_info $index_info \
1833                 ]
1834         return $state
1835 }
1836
1837 proc display_file_helper {w path icon_name old_m new_m} {
1838         global file_lists
1839
1840         if {$new_m eq {_}} {
1841                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1842                 if {$lno >= 0} {
1843                         set file_lists($w) [lreplace $file_lists($w) $lno $lno]
1844                         incr lno
1845                         $w conf -state normal
1846                         $w delete $lno.0 [expr {$lno + 1}].0
1847                         $w conf -state disabled
1848                 }
1849         } elseif {$old_m eq {_} && $new_m ne {_}} {
1850                 lappend file_lists($w) $path
1851                 set file_lists($w) [lsort -unique $file_lists($w)]
1852                 set lno [lsearch -sorted -exact $file_lists($w) $path]
1853                 incr lno
1854                 $w conf -state normal
1855                 $w image create $lno.0 \
1856                         -align center -padx 5 -pady 1 \
1857                         -name $icon_name \
1858                         -image [mapicon $w $new_m $path]
1859                 $w insert $lno.1 "[escape_path $path]\n"
1860                 $w conf -state disabled
1861         } elseif {$old_m ne $new_m} {
1862                 $w conf -state normal
1863                 $w image conf $icon_name -image [mapicon $w $new_m $path]
1864                 $w conf -state disabled
1865         }
1866 }
1867
1868 proc display_file {path state} {
1869         global file_states selected_paths
1870         global ui_index ui_workdir
1871
1872         set old_m [merge_state $path $state]
1873         set s $file_states($path)
1874         set new_m [lindex $s 0]
1875         set icon_name [lindex $s 1]
1876
1877         set o [string index $old_m 0]
1878         set n [string index $new_m 0]
1879         if {$o eq {U}} {
1880                 set o _
1881         }
1882         if {$n eq {U}} {
1883                 set n _
1884         }
1885         display_file_helper     $ui_index $path $icon_name $o $n
1886
1887         if {[string index $old_m 0] eq {U}} {
1888                 set o U
1889         } else {
1890                 set o [string index $old_m 1]
1891         }
1892         if {[string index $new_m 0] eq {U}} {
1893                 set n U
1894         } else {
1895                 set n [string index $new_m 1]
1896         }
1897         display_file_helper     $ui_workdir $path $icon_name $o $n
1898
1899         if {$new_m eq {__}} {
1900                 unset file_states($path)
1901                 catch {unset selected_paths($path)}
1902         }
1903 }
1904
1905 proc display_all_files_helper {w path icon_name m} {
1906         global file_lists
1907
1908         lappend file_lists($w) $path
1909         set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
1910         $w image create end \
1911                 -align center -padx 5 -pady 1 \
1912                 -name $icon_name \
1913                 -image [mapicon $w $m $path]
1914         $w insert end "[escape_path $path]\n"
1915 }
1916
1917 set files_warning 0
1918 proc display_all_files {} {
1919         global ui_index ui_workdir
1920         global file_states file_lists
1921         global last_clicked
1922         global files_warning
1923
1924         $ui_index conf -state normal
1925         $ui_workdir conf -state normal
1926
1927         $ui_index delete 0.0 end
1928         $ui_workdir delete 0.0 end
1929         set last_clicked {}
1930
1931         set file_lists($ui_index) [list]
1932         set file_lists($ui_workdir) [list]
1933
1934         set to_display [lsort [array names file_states]]
1935         set display_limit [get_config gui.maxfilesdisplayed]
1936         if {[llength $to_display] > $display_limit} {
1937                 if {!$files_warning} {
1938                         # do not repeatedly warn:
1939                         set files_warning 1
1940                         info_popup [mc "Displaying only %s of %s files." \
1941                                 $display_limit [llength $to_display]]
1942                 }
1943                 set to_display [lrange $to_display 0 [expr {$display_limit-1}]]
1944         }
1945         foreach path $to_display {
1946                 set s $file_states($path)
1947                 set m [lindex $s 0]
1948                 set icon_name [lindex $s 1]
1949
1950                 set s [string index $m 0]
1951                 if {$s ne {U} && $s ne {_}} {
1952                         display_all_files_helper $ui_index $path \
1953                                 $icon_name $s
1954                 }
1955
1956                 if {[string index $m 0] eq {U}} {
1957                         set s U
1958                 } else {
1959                         set s [string index $m 1]
1960                 }
1961                 if {$s ne {_}} {
1962                         display_all_files_helper $ui_workdir $path \
1963                                 $icon_name $s
1964                 }
1965         }
1966
1967         $ui_index conf -state disabled
1968         $ui_workdir conf -state disabled
1969 }
1970
1971 ######################################################################
1972 ##
1973 ## icons
1974
1975 set filemask {
1976 #define mask_width 14
1977 #define mask_height 15
1978 static unsigned char mask_bits[] = {
1979    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1980    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
1981    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
1982 }
1983
1984 image create bitmap file_plain -background white -foreground black -data {
1985 #define plain_width 14
1986 #define plain_height 15
1987 static unsigned char plain_bits[] = {
1988    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
1989    0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
1990    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
1991 } -maskdata $filemask
1992
1993 image create bitmap file_mod -background white -foreground blue -data {
1994 #define mod_width 14
1995 #define mod_height 15
1996 static unsigned char mod_bits[] = {
1997    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
1998    0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
1999    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
2000 } -maskdata $filemask
2001
2002 image create bitmap file_fulltick -background white -foreground "#007000" -data {
2003 #define file_fulltick_width 14
2004 #define file_fulltick_height 15
2005 static unsigned char file_fulltick_bits[] = {
2006    0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
2007    0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
2008    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2009 } -maskdata $filemask
2010
2011 image create bitmap file_question -background white -foreground black -data {
2012 #define file_question_width 14
2013 #define file_question_height 15
2014 static unsigned char file_question_bits[] = {
2015    0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
2016    0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
2017    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2018 } -maskdata $filemask
2019
2020 image create bitmap file_removed -background white -foreground red -data {
2021 #define file_removed_width 14
2022 #define file_removed_height 15
2023 static unsigned char file_removed_bits[] = {
2024    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
2025    0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
2026    0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
2027 } -maskdata $filemask
2028
2029 image create bitmap file_merge -background white -foreground blue -data {
2030 #define file_merge_width 14
2031 #define file_merge_height 15
2032 static unsigned char file_merge_bits[] = {
2033    0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
2034    0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
2035    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
2036 } -maskdata $filemask
2037
2038 image create bitmap file_statechange -background white -foreground green -data {
2039 #define file_statechange_width 14
2040 #define file_statechange_height 15
2041 static unsigned char file_statechange_bits[] = {
2042    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x62, 0x10,
2043    0x62, 0x10, 0xba, 0x11, 0xba, 0x11, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10,
2044    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2045 } -maskdata $filemask
2046
2047 set ui_index .vpane.files.index.list
2048 set ui_workdir .vpane.files.workdir.list
2049
2050 set all_icons(_$ui_index)   file_plain
2051 set all_icons(A$ui_index)   file_plain
2052 set all_icons(M$ui_index)   file_fulltick
2053 set all_icons(D$ui_index)   file_removed
2054 set all_icons(U$ui_index)   file_merge
2055 set all_icons(T$ui_index)   file_statechange
2056
2057 set all_icons(_$ui_workdir) file_plain
2058 set all_icons(M$ui_workdir) file_mod
2059 set all_icons(D$ui_workdir) file_question
2060 set all_icons(U$ui_workdir) file_merge
2061 set all_icons(O$ui_workdir) file_plain
2062 set all_icons(T$ui_workdir) file_statechange
2063
2064 set max_status_desc 0
2065 foreach i {
2066                 {__ {mc "Unmodified"}}
2067
2068                 {_M {mc "Modified, not staged"}}
2069                 {M_ {mc "Staged for commit"}}
2070                 {MM {mc "Portions staged for commit"}}
2071                 {MD {mc "Staged for commit, missing"}}
2072
2073                 {_T {mc "File type changed, not staged"}}
2074                 {MT {mc "File type changed, old type staged for commit"}}
2075                 {AT {mc "File type changed, old type staged for commit"}}
2076                 {T_ {mc "File type changed, staged"}}
2077                 {TM {mc "File type change staged, modification not staged"}}
2078                 {TD {mc "File type change staged, file missing"}}
2079
2080                 {_O {mc "Untracked, not staged"}}
2081                 {A_ {mc "Staged for commit"}}
2082                 {AM {mc "Portions staged for commit"}}
2083                 {AD {mc "Staged for commit, missing"}}
2084
2085                 {_D {mc "Missing"}}
2086                 {D_ {mc "Staged for removal"}}
2087                 {DO {mc "Staged for removal, still present"}}
2088
2089                 {_U {mc "Requires merge resolution"}}
2090                 {U_ {mc "Requires merge resolution"}}
2091                 {UU {mc "Requires merge resolution"}}
2092                 {UM {mc "Requires merge resolution"}}
2093                 {UD {mc "Requires merge resolution"}}
2094                 {UT {mc "Requires merge resolution"}}
2095         } {
2096         set text [eval [lindex $i 1]]
2097         if {$max_status_desc < [string length $text]} {
2098                 set max_status_desc [string length $text]
2099         }
2100         set all_descs([lindex $i 0]) $text
2101 }
2102 unset i
2103
2104 ######################################################################
2105 ##
2106 ## util
2107
2108 proc scrollbar2many {list mode args} {
2109         foreach w $list {eval $w $mode $args}
2110 }
2111
2112 proc many2scrollbar {list mode sb top bottom} {
2113         $sb set $top $bottom
2114         foreach w $list {$w $mode moveto $top}
2115 }
2116
2117 proc incr_font_size {font {amt 1}} {
2118         set sz [font configure $font -size]
2119         incr sz $amt
2120         font configure $font -size $sz
2121         font configure ${font}bold -size $sz
2122         font configure ${font}italic -size $sz
2123 }
2124
2125 ######################################################################
2126 ##
2127 ## ui commands
2128
2129 set starting_gitk_msg [mc "Starting gitk... please wait..."]
2130
2131 proc do_gitk {revs {is_submodule false}} {
2132         global current_diff_path file_states current_diff_side ui_index
2133         global _gitdir _gitworktree
2134
2135         # -- Always start gitk through whatever we were loaded with.  This
2136         #    lets us bypass using shell process on Windows systems.
2137         #
2138         set exe [_which gitk -script]
2139         set cmd [list [info nameofexecutable] $exe]
2140         if {$exe eq {}} {
2141                 error_popup [mc "Couldn't find gitk in PATH"]
2142         } else {
2143                 global env
2144
2145                 set pwd [pwd]
2146
2147                 if {!$is_submodule} {
2148                         if {![is_bare]} {
2149                                 cd $_gitworktree
2150                         }
2151                 } else {
2152                         cd $current_diff_path
2153                         if {$revs eq {--}} {
2154                                 set s $file_states($current_diff_path)
2155                                 set old_sha1 {}
2156                                 set new_sha1 {}
2157                                 switch -glob -- [lindex $s 0] {
2158                                 M_ { set old_sha1 [lindex [lindex $s 2] 1] }
2159                                 _M { set old_sha1 [lindex [lindex $s 3] 1] }
2160                                 MM {
2161                                         if {$current_diff_side eq $ui_index} {
2162                                                 set old_sha1 [lindex [lindex $s 2] 1]
2163                                                 set new_sha1 [lindex [lindex $s 3] 1]
2164                                         } else {
2165                                                 set old_sha1 [lindex [lindex $s 3] 1]
2166                                         }
2167                                 }
2168                                 }
2169                                 set revs $old_sha1...$new_sha1
2170                         }
2171                         # GIT_DIR and GIT_WORK_TREE for the submodule are not the ones
2172                         # we've been using for the main repository, so unset them.
2173                         # TODO we could make life easier (start up faster?) for gitk
2174                         # by setting these to the appropriate values to allow gitk
2175                         # to skip the heuristics to find their proper value
2176                         unset env(GIT_DIR)
2177                         unset env(GIT_WORK_TREE)
2178                 }
2179                 eval exec $cmd $revs "--" "--" &
2180
2181                 set env(GIT_DIR) $_gitdir
2182                 set env(GIT_WORK_TREE) $_gitworktree
2183                 cd $pwd
2184
2185                 ui_status $::starting_gitk_msg
2186                 after 10000 {
2187                         ui_ready $starting_gitk_msg
2188                 }
2189         }
2190 }
2191
2192 proc do_git_gui {} {
2193         global current_diff_path
2194
2195         # -- Always start git gui through whatever we were loaded with.  This
2196         #    lets us bypass using shell process on Windows systems.
2197         #
2198         set exe [list [_which git]]
2199         if {$exe eq {}} {
2200                 error_popup [mc "Couldn't find git gui in PATH"]
2201         } else {
2202                 global env
2203                 global _gitdir _gitworktree
2204
2205                 # see note in do_gitk about unsetting these vars when
2206                 # running tools in a submodule
2207                 unset env(GIT_DIR)
2208                 unset env(GIT_WORK_TREE)
2209
2210                 set pwd [pwd]
2211                 cd $current_diff_path
2212
2213                 eval exec $exe gui &
2214
2215                 set env(GIT_DIR) $_gitdir
2216                 set env(GIT_WORK_TREE) $_gitworktree
2217                 cd $pwd
2218
2219                 ui_status $::starting_gitk_msg
2220                 after 10000 {
2221                         ui_ready $starting_gitk_msg
2222                 }
2223         }
2224 }
2225
2226 proc do_explore {} {
2227         global _gitworktree
2228         set explorer {}
2229         if {[is_Cygwin] || [is_Windows]} {
2230                 set explorer "explorer.exe"
2231         } elseif {[is_MacOSX]} {
2232                 set explorer "open"
2233         } else {
2234                 # freedesktop.org-conforming system is our best shot
2235                 set explorer "xdg-open"
2236         }
2237         eval exec $explorer [list [file nativename $_gitworktree]] &
2238 }
2239
2240 set is_quitting 0
2241 set ret_code    1
2242
2243 proc terminate_me {win} {
2244         global ret_code
2245         if {$win ne {.}} return
2246         exit $ret_code
2247 }
2248
2249 proc do_quit {{rc {1}}} {
2250         global ui_comm is_quitting repo_config commit_type
2251         global GITGUI_BCK_exists GITGUI_BCK_i
2252         global ui_comm_spell
2253         global ret_code use_ttk
2254
2255         if {$is_quitting} return
2256         set is_quitting 1
2257
2258         if {[winfo exists $ui_comm]} {
2259                 # -- Stash our current commit buffer.
2260                 #
2261                 set save [gitdir GITGUI_MSG]
2262                 if {$GITGUI_BCK_exists && ![$ui_comm edit modified]} {
2263                         file rename -force [gitdir GITGUI_BCK] $save
2264                         set GITGUI_BCK_exists 0
2265                 } else {
2266                         set msg [string trim [$ui_comm get 0.0 end]]
2267                         regsub -all -line {[ \r\t]+$} $msg {} msg
2268                         if {(![string match amend* $commit_type]
2269                                 || [$ui_comm edit modified])
2270                                 && $msg ne {}} {
2271                                 catch {
2272                                         set fd [open $save w]
2273                                         fconfigure $fd -encoding utf-8
2274                                         puts -nonewline $fd $msg
2275                                         close $fd
2276                                 }
2277                         } else {
2278                                 catch {file delete $save}
2279                         }
2280                 }
2281
2282                 # -- Cancel our spellchecker if its running.
2283                 #
2284                 if {[info exists ui_comm_spell]} {
2285                         $ui_comm_spell stop
2286                 }
2287
2288                 # -- Remove our editor backup, its not needed.
2289                 #
2290                 after cancel $GITGUI_BCK_i
2291                 if {$GITGUI_BCK_exists} {
2292                         catch {file delete [gitdir GITGUI_BCK]}
2293                 }
2294
2295                 # -- Stash our current window geometry into this repository.
2296                 #
2297                 set cfg_wmstate [wm state .]
2298                 if {[catch {set rc_wmstate $repo_config(gui.wmstate)}]} {
2299                         set rc_wmstate {}
2300                 }
2301                 if {$cfg_wmstate ne $rc_wmstate} {
2302                         catch {git config gui.wmstate $cfg_wmstate}
2303                 }
2304                 if {$cfg_wmstate eq {zoomed}} {
2305                         # on Windows wm geometry will lie about window
2306                         # position (but not size) when window is zoomed
2307                         # restore the window before querying wm geometry
2308                         wm state . normal
2309                 }
2310                 set cfg_geometry [list]
2311                 lappend cfg_geometry [wm geometry .]
2312                 if {$use_ttk} {
2313                         lappend cfg_geometry [.vpane sashpos 0]
2314                         lappend cfg_geometry [.vpane.files sashpos 0]
2315                 } else {
2316                         lappend cfg_geometry [lindex [.vpane sash coord 0] 0]
2317                         lappend cfg_geometry [lindex [.vpane.files sash coord 0] 1]
2318                 }
2319                 if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
2320                         set rc_geometry {}
2321                 }
2322                 if {$cfg_geometry ne $rc_geometry} {
2323                         catch {git config gui.geometry $cfg_geometry}
2324                 }
2325         }
2326
2327         set ret_code $rc
2328
2329         # Briefly enable send again, working around Tk bug
2330         # http://sourceforge.net/tracker/?func=detail&atid=112997&aid=1821174&group_id=12997
2331         tk appname [appname]
2332
2333         destroy .
2334 }
2335
2336 proc do_rescan {} {
2337         rescan ui_ready
2338 }
2339
2340 proc ui_do_rescan {} {
2341         rescan {force_first_diff ui_ready}
2342 }
2343
2344 proc do_commit {} {
2345         commit_tree
2346 }
2347
2348 proc next_diff {{after {}}} {
2349         global next_diff_p next_diff_w next_diff_i
2350         show_diff $next_diff_p $next_diff_w {} {} $after
2351 }
2352
2353 proc find_anchor_pos {lst name} {
2354         set lid [lsearch -sorted -exact $lst $name]
2355
2356         if {$lid == -1} {
2357                 set lid 0
2358                 foreach lname $lst {
2359                         if {$lname >= $name} break
2360                         incr lid
2361                 }
2362         }
2363
2364         return $lid
2365 }
2366
2367 proc find_file_from {flist idx delta path mmask} {
2368         global file_states
2369
2370         set len [llength $flist]
2371         while {$idx >= 0 && $idx < $len} {
2372                 set name [lindex $flist $idx]
2373
2374                 if {$name ne $path && [info exists file_states($name)]} {
2375                         set state [lindex $file_states($name) 0]
2376
2377                         if {$mmask eq {} || [regexp $mmask $state]} {
2378                                 return $idx
2379                         }
2380                 }
2381
2382                 incr idx $delta
2383         }
2384
2385         return {}
2386 }
2387
2388 proc find_next_diff {w path {lno {}} {mmask {}}} {
2389         global next_diff_p next_diff_w next_diff_i
2390         global file_lists ui_index ui_workdir
2391
2392         set flist $file_lists($w)
2393         if {$lno eq {}} {
2394                 set lno [find_anchor_pos $flist $path]
2395         } else {
2396                 incr lno -1
2397         }
2398
2399         if {$mmask ne {} && ![regexp {(^\^)|(\$$)} $mmask]} {
2400                 if {$w eq $ui_index} {
2401                         set mmask "^$mmask"
2402                 } else {
2403                         set mmask "$mmask\$"
2404                 }
2405         }
2406
2407         set idx [find_file_from $flist $lno 1 $path $mmask]
2408         if {$idx eq {}} {
2409                 incr lno -1
2410                 set idx [find_file_from $flist $lno -1 $path $mmask]
2411         }
2412
2413         if {$idx ne {}} {
2414                 set next_diff_w $w
2415                 set next_diff_p [lindex $flist $idx]
2416                 set next_diff_i [expr {$idx+1}]
2417                 return 1
2418         } else {
2419                 return 0
2420         }
2421 }
2422
2423 proc next_diff_after_action {w path {lno {}} {mmask {}}} {
2424         global current_diff_path
2425
2426         if {$path ne $current_diff_path} {
2427                 return {}
2428         } elseif {[find_next_diff $w $path $lno $mmask]} {
2429                 return {next_diff;}
2430         } else {
2431                 return {reshow_diff;}
2432         }
2433 }
2434
2435 proc select_first_diff {after} {
2436         global ui_workdir
2437
2438         if {[find_next_diff $ui_workdir {} 1 {^_?U}] ||
2439             [find_next_diff $ui_workdir {} 1 {[^O]$}]} {
2440                 next_diff $after
2441         } else {
2442                 uplevel #0 $after
2443         }
2444 }
2445
2446 proc force_first_diff {after} {
2447         global ui_workdir current_diff_path file_states
2448
2449         if {[info exists file_states($current_diff_path)]} {
2450                 set state [lindex $file_states($current_diff_path) 0]
2451         } else {
2452                 set state {OO}
2453         }
2454
2455         set reselect 0
2456         if {[string first {U} $state] >= 0} {
2457                 # Already a conflict, do nothing
2458         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {^_?U}]} {
2459                 set reselect 1
2460         } elseif {[string index $state 1] ne {O}} {
2461                 # Already a diff & no conflicts, do nothing
2462         } elseif {[find_next_diff $ui_workdir $current_diff_path {} {[^O]$}]} {
2463                 set reselect 1
2464         }
2465
2466         if {$reselect} {
2467                 next_diff $after
2468         } else {
2469                 uplevel #0 $after
2470         }
2471 }
2472
2473 proc toggle_or_diff {w x y} {
2474         global file_states file_lists current_diff_path ui_index ui_workdir
2475         global last_clicked selected_paths
2476
2477         set pos [split [$w index @$x,$y] .]
2478         set lno [lindex $pos 0]
2479         set col [lindex $pos 1]
2480         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2481         if {$path eq {}} {
2482                 set last_clicked {}
2483                 return
2484         }
2485
2486         set last_clicked [list $w $lno]
2487         array unset selected_paths
2488         $ui_index tag remove in_sel 0.0 end
2489         $ui_workdir tag remove in_sel 0.0 end
2490
2491         # Determine the state of the file
2492         if {[info exists file_states($path)]} {
2493                 set state [lindex $file_states($path) 0]
2494         } else {
2495                 set state {__}
2496         }
2497
2498         # Restage the file, or simply show the diff
2499         if {$col == 0 && $y > 1} {
2500                 # Conflicts need special handling
2501                 if {[string first {U} $state] >= 0} {
2502                         # $w must always be $ui_workdir, but...
2503                         if {$w ne $ui_workdir} { set lno {} }
2504                         merge_stage_workdir $path $lno
2505                         return
2506                 }
2507
2508                 if {[string index $state 1] eq {O}} {
2509                         set mmask {}
2510                 } else {
2511                         set mmask {[^O]}
2512                 }
2513
2514                 set after [next_diff_after_action $w $path $lno $mmask]
2515
2516                 if {$w eq $ui_index} {
2517                         update_indexinfo \
2518                                 "Unstaging [short_path $path] from commit" \
2519                                 [list $path] \
2520                                 [concat $after [list ui_ready]]
2521                 } elseif {$w eq $ui_workdir} {
2522                         update_index \
2523                                 "Adding [short_path $path]" \
2524                                 [list $path] \
2525                                 [concat $after [list ui_ready]]
2526                 }
2527         } else {
2528                 set selected_paths($path) 1
2529                 show_diff $path $w $lno
2530         }
2531 }
2532
2533 proc add_one_to_selection {w x y} {
2534         global file_lists last_clicked selected_paths
2535
2536         set lno [lindex [split [$w index @$x,$y] .] 0]
2537         set path [lindex $file_lists($w) [expr {$lno - 1}]]
2538         if {$path eq {}} {
2539                 set last_clicked {}
2540                 return
2541         }
2542
2543         if {$last_clicked ne {}
2544                 && [lindex $last_clicked 0] ne $w} {
2545                 array unset selected_paths
2546                 [lindex $last_clicked 0] tag remove in_sel 0.0 end
2547         }
2548
2549         set last_clicked [list $w $lno]
2550         if {[catch {set in_sel $selected_paths($path)}]} {
2551                 set in_sel 0
2552         }
2553         if {$in_sel} {
2554                 unset selected_paths($path)
2555                 $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
2556         } else {
2557                 set selected_paths($path) 1
2558                 $w tag add in_sel $lno.0 [expr {$lno + 1}].0
2559         }
2560 }
2561
2562 proc add_range_to_selection {w x y} {
2563         global file_lists last_clicked selected_paths
2564
2565         if {[lindex $last_clicked 0] ne $w} {
2566                 toggle_or_diff $w $x $y
2567                 return
2568         }
2569
2570         set lno [lindex [split [$w index @$x,$y] .] 0]
2571         set lc [lindex $last_clicked 1]
2572         if {$lc < $lno} {
2573                 set begin $lc
2574                 set end $lno
2575         } else {
2576                 set begin $lno
2577                 set end $lc
2578         }
2579
2580         foreach path [lrange $file_lists($w) \
2581                 [expr {$begin - 1}] \
2582                 [expr {$end - 1}]] {
2583                 set selected_paths($path) 1
2584         }
2585         $w tag add in_sel $begin.0 [expr {$end + 1}].0
2586 }
2587
2588 proc show_more_context {} {
2589         global repo_config
2590         if {$repo_config(gui.diffcontext) < 99} {
2591                 incr repo_config(gui.diffcontext)
2592                 reshow_diff
2593         }
2594 }
2595
2596 proc show_less_context {} {
2597         global repo_config
2598         if {$repo_config(gui.diffcontext) > 1} {
2599                 incr repo_config(gui.diffcontext) -1
2600                 reshow_diff
2601         }
2602 }
2603
2604 ######################################################################
2605 ##
2606 ## ui construction
2607
2608 set ui_comm {}
2609
2610 # -- Menu Bar
2611 #
2612 menu .mbar -tearoff 0
2613 if {[is_MacOSX]} {
2614         # -- Apple Menu (Mac OS X only)
2615         #
2616         .mbar add cascade -label Apple -menu .mbar.apple
2617         menu .mbar.apple
2618 }
2619 .mbar add cascade -label [mc Repository] -menu .mbar.repository
2620 .mbar add cascade -label [mc Edit] -menu .mbar.edit
2621 if {[is_enabled branch]} {
2622         .mbar add cascade -label [mc Branch] -menu .mbar.branch
2623 }
2624 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2625         .mbar add cascade -label [mc Commit@@noun] -menu .mbar.commit
2626 }
2627 if {[is_enabled transport]} {
2628         .mbar add cascade -label [mc Merge] -menu .mbar.merge
2629         .mbar add cascade -label [mc Remote] -menu .mbar.remote
2630 }
2631 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2632         .mbar add cascade -label [mc Tools] -menu .mbar.tools
2633 }
2634
2635 # -- Repository Menu
2636 #
2637 menu .mbar.repository
2638
2639 if {![is_bare]} {
2640         .mbar.repository add command \
2641                 -label [mc "Explore Working Copy"] \
2642                 -command {do_explore}
2643         .mbar.repository add separator
2644 }
2645
2646 .mbar.repository add command \
2647         -label [mc "Browse Current Branch's Files"] \
2648         -command {browser::new $current_branch}
2649 set ui_browse_current [.mbar.repository index last]
2650 .mbar.repository add command \
2651         -label [mc "Browse Branch Files..."] \
2652         -command browser_open::dialog
2653 .mbar.repository add separator
2654
2655 .mbar.repository add command \
2656         -label [mc "Visualize Current Branch's History"] \
2657         -command {do_gitk $current_branch}
2658 set ui_visualize_current [.mbar.repository index last]
2659 .mbar.repository add command \
2660         -label [mc "Visualize All Branch History"] \
2661         -command {do_gitk --all}
2662 .mbar.repository add separator
2663
2664 proc current_branch_write {args} {
2665         global current_branch
2666         .mbar.repository entryconf $::ui_browse_current \
2667                 -label [mc "Browse %s's Files" $current_branch]
2668         .mbar.repository entryconf $::ui_visualize_current \
2669                 -label [mc "Visualize %s's History" $current_branch]
2670 }
2671 trace add variable current_branch write current_branch_write
2672
2673 if {[is_enabled multicommit]} {
2674         .mbar.repository add command -label [mc "Database Statistics"] \
2675                 -command do_stats
2676
2677         .mbar.repository add command -label [mc "Compress Database"] \
2678                 -command do_gc
2679
2680         .mbar.repository add command -label [mc "Verify Database"] \
2681                 -command do_fsck_objects
2682
2683         .mbar.repository add separator
2684
2685         if {[is_Cygwin]} {
2686                 .mbar.repository add command \
2687                         -label [mc "Create Desktop Icon"] \
2688                         -command do_cygwin_shortcut
2689         } elseif {[is_Windows]} {
2690                 .mbar.repository add command \
2691                         -label [mc "Create Desktop Icon"] \
2692                         -command do_windows_shortcut
2693         } elseif {[is_MacOSX]} {
2694                 .mbar.repository add command \
2695                         -label [mc "Create Desktop Icon"] \
2696                         -command do_macosx_app
2697         }
2698 }
2699
2700 if {[is_MacOSX]} {
2701         proc ::tk::mac::Quit {args} { do_quit }
2702 } else {
2703         .mbar.repository add command -label [mc Quit] \
2704                 -command do_quit \
2705                 -accelerator $M1T-Q
2706 }
2707
2708 # -- Edit Menu
2709 #
2710 menu .mbar.edit
2711 .mbar.edit add command -label [mc Undo] \
2712         -command {catch {[focus] edit undo}} \
2713         -accelerator $M1T-Z
2714 .mbar.edit add command -label [mc Redo] \
2715         -command {catch {[focus] edit redo}} \
2716         -accelerator $M1T-Y
2717 .mbar.edit add separator
2718 .mbar.edit add command -label [mc Cut] \
2719         -command {catch {tk_textCut [focus]}} \
2720         -accelerator $M1T-X
2721 .mbar.edit add command -label [mc Copy] \
2722         -command {catch {tk_textCopy [focus]}} \
2723         -accelerator $M1T-C
2724 .mbar.edit add command -label [mc Paste] \
2725         -command {catch {tk_textPaste [focus]; [focus] see insert}} \
2726         -accelerator $M1T-V
2727 .mbar.edit add command -label [mc Delete] \
2728         -command {catch {[focus] delete sel.first sel.last}} \
2729         -accelerator Del
2730 .mbar.edit add separator
2731 .mbar.edit add command -label [mc "Select All"] \
2732         -command {catch {[focus] tag add sel 0.0 end}} \
2733         -accelerator $M1T-A
2734
2735 # -- Branch Menu
2736 #
2737 if {[is_enabled branch]} {
2738         menu .mbar.branch
2739
2740         .mbar.branch add command -label [mc "Create..."] \
2741                 -command branch_create::dialog \
2742                 -accelerator $M1T-N
2743         lappend disable_on_lock [list .mbar.branch entryconf \
2744                 [.mbar.branch index last] -state]
2745
2746         .mbar.branch add command -label [mc "Checkout..."] \
2747                 -command branch_checkout::dialog \
2748                 -accelerator $M1T-O
2749         lappend disable_on_lock [list .mbar.branch entryconf \
2750                 [.mbar.branch index last] -state]
2751
2752         .mbar.branch add command -label [mc "Rename..."] \
2753                 -command branch_rename::dialog
2754         lappend disable_on_lock [list .mbar.branch entryconf \
2755                 [.mbar.branch index last] -state]
2756
2757         .mbar.branch add command -label [mc "Delete..."] \
2758                 -command branch_delete::dialog
2759         lappend disable_on_lock [list .mbar.branch entryconf \
2760                 [.mbar.branch index last] -state]
2761
2762         .mbar.branch add command -label [mc "Reset..."] \
2763                 -command merge::reset_hard
2764         lappend disable_on_lock [list .mbar.branch entryconf \
2765                 [.mbar.branch index last] -state]
2766 }
2767
2768 # -- Commit Menu
2769 #
2770 proc commit_btn_caption {} {
2771         if {[is_enabled nocommit]} {
2772                 return [mc "Done"]
2773         } else {
2774                 return [mc Commit@@verb]
2775         }
2776 }
2777
2778 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2779         menu .mbar.commit
2780
2781         if {![is_enabled nocommit]} {
2782                 .mbar.commit add radiobutton \
2783                         -label [mc "New Commit"] \
2784                         -command do_select_commit_type \
2785                         -variable selected_commit_type \
2786                         -value new
2787                 lappend disable_on_lock \
2788                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2789
2790                 .mbar.commit add radiobutton \
2791                         -label [mc "Amend Last Commit"] \
2792                         -command do_select_commit_type \
2793                         -variable selected_commit_type \
2794                         -value amend
2795                 lappend disable_on_lock \
2796                         [list .mbar.commit entryconf [.mbar.commit index last] -state]
2797
2798                 .mbar.commit add separator
2799         }
2800
2801         .mbar.commit add command -label [mc Rescan] \
2802                 -command ui_do_rescan \
2803                 -accelerator F5
2804         lappend disable_on_lock \
2805                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2806
2807         .mbar.commit add command -label [mc "Stage To Commit"] \
2808                 -command do_add_selection \
2809                 -accelerator $M1T-T
2810         lappend disable_on_lock \
2811                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2812
2813         .mbar.commit add command -label [mc "Stage Changed Files To Commit"] \
2814                 -command do_add_all \
2815                 -accelerator $M1T-I
2816         lappend disable_on_lock \
2817                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2818
2819         .mbar.commit add command -label [mc "Unstage From Commit"] \
2820                 -command do_unstage_selection \
2821                 -accelerator $M1T-U
2822         lappend disable_on_lock \
2823                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2824
2825         .mbar.commit add command -label [mc "Revert Changes"] \
2826                 -command do_revert_selection \
2827                 -accelerator $M1T-J
2828         lappend disable_on_lock \
2829                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2830
2831         .mbar.commit add separator
2832
2833         .mbar.commit add command -label [mc "Show Less Context"] \
2834                 -command show_less_context \
2835                 -accelerator $M1T-\-
2836
2837         .mbar.commit add command -label [mc "Show More Context"] \
2838                 -command show_more_context \
2839                 -accelerator $M1T-=
2840
2841         .mbar.commit add separator
2842
2843         if {![is_enabled nocommitmsg]} {
2844                 .mbar.commit add command -label [mc "Sign Off"] \
2845                         -command do_signoff \
2846                         -accelerator $M1T-S
2847         }
2848
2849         .mbar.commit add command -label [commit_btn_caption] \
2850                 -command do_commit \
2851                 -accelerator $M1T-Return
2852         lappend disable_on_lock \
2853                 [list .mbar.commit entryconf [.mbar.commit index last] -state]
2854 }
2855
2856 # -- Merge Menu
2857 #
2858 if {[is_enabled branch]} {
2859         menu .mbar.merge
2860         .mbar.merge add command -label [mc "Local Merge..."] \
2861                 -command merge::dialog \
2862                 -accelerator $M1T-M
2863         lappend disable_on_lock \
2864                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2865         .mbar.merge add command -label [mc "Abort Merge..."] \
2866                 -command merge::reset_hard
2867         lappend disable_on_lock \
2868                 [list .mbar.merge entryconf [.mbar.merge index last] -state]
2869 }
2870
2871 # -- Transport Menu
2872 #
2873 if {[is_enabled transport]} {
2874         menu .mbar.remote
2875
2876         .mbar.remote add command \
2877                 -label [mc "Add..."] \
2878                 -command remote_add::dialog \
2879                 -accelerator $M1T-A
2880         .mbar.remote add command \
2881                 -label [mc "Push..."] \
2882                 -command do_push_anywhere \
2883                 -accelerator $M1T-P
2884         .mbar.remote add command \
2885                 -label [mc "Delete Branch..."] \
2886                 -command remote_branch_delete::dialog
2887 }
2888
2889 if {[is_MacOSX]} {
2890         proc ::tk::mac::ShowPreferences {} {do_options}
2891 } else {
2892         # -- Edit Menu
2893         #
2894         .mbar.edit add separator
2895         .mbar.edit add command -label [mc "Options..."] \
2896                 -command do_options
2897 }
2898
2899 # -- Tools Menu
2900 #
2901 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
2902         set tools_menubar .mbar.tools
2903         menu $tools_menubar
2904         $tools_menubar add separator
2905         $tools_menubar add command -label [mc "Add..."] -command tools_add::dialog
2906         $tools_menubar add command -label [mc "Remove..."] -command tools_remove::dialog
2907         set tools_tailcnt 3
2908         if {[array names repo_config guitool.*.cmd] ne {}} {
2909                 tools_populate_all
2910         }
2911 }
2912
2913 # -- Help Menu
2914 #
2915 .mbar add cascade -label [mc Help] -menu .mbar.help
2916 menu .mbar.help
2917
2918 if {[is_MacOSX]} {
2919         .mbar.apple add command -label [mc "About %s" [appname]] \
2920                 -command do_about
2921         .mbar.apple add separator
2922 } else {
2923         .mbar.help add command -label [mc "About %s" [appname]] \
2924                 -command do_about
2925 }
2926 . configure -menu .mbar
2927
2928 set doc_path [githtmldir]
2929 if {$doc_path ne {}} {
2930         set doc_path [file join $doc_path index.html]
2931
2932         if {[is_Cygwin]} {
2933                 set doc_path [exec cygpath --mixed $doc_path]
2934         }
2935 }
2936
2937 if {[file isfile $doc_path]} {
2938         set doc_url "file:$doc_path"
2939 } else {
2940         set doc_url {http://www.kernel.org/pub/software/scm/git/docs/}
2941 }
2942
2943 proc start_browser {url} {
2944         git "web--browse" $url
2945 }
2946
2947 .mbar.help add command -label [mc "Online Documentation"] \
2948         -command [list start_browser $doc_url]
2949
2950 .mbar.help add command -label [mc "Show SSH Key"] \
2951         -command do_ssh_key
2952
2953 unset doc_path doc_url
2954
2955 # -- Standard bindings
2956 #
2957 wm protocol . WM_DELETE_WINDOW do_quit
2958 bind all <$M1B-Key-q> do_quit
2959 bind all <$M1B-Key-Q> do_quit
2960 bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
2961 bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
2962
2963 set subcommand_args {}
2964 proc usage {} {
2965         set s "usage: $::argv0 $::subcommand $::subcommand_args"
2966         if {[tk windowingsystem] eq "win32"} {
2967                 wm withdraw .
2968                 tk_messageBox -icon info -message $s \
2969                         -title [mc "Usage"]
2970         } else {
2971                 puts stderr $s
2972         }
2973         exit 1
2974 }
2975
2976 proc normalize_relpath {path} {
2977         set elements {}
2978         foreach item [file split $path] {
2979                 if {$item eq {.}} continue
2980                 if {$item eq {..} && [llength $elements] > 0
2981                     && [lindex $elements end] ne {..}} {
2982                         set elements [lrange $elements 0 end-1]
2983                         continue
2984                 }
2985                 lappend elements $item
2986         }
2987         return [eval file join $elements]
2988 }
2989
2990 # -- Not a normal commit type invocation?  Do that instead!
2991 #
2992 switch -- $subcommand {
2993 browser -
2994 blame {
2995         if {$subcommand eq "blame"} {
2996                 set subcommand_args {[--line=<num>] rev? path}
2997         } else {
2998                 set subcommand_args {rev? path}
2999         }
3000         if {$argv eq {}} usage
3001         set head {}
3002         set path {}
3003         set jump_spec {}
3004         set is_path 0
3005         foreach a $argv {
3006                 if {[file exists $a]} {
3007                         if {$path ne {}} usage
3008                         set path [normalize_relpath $a]
3009                         break
3010                 } elseif {[file exists $_prefix$a]} {
3011                         if {$path ne {}} usage
3012                         set path [normalize_relpath $_prefix$a]
3013                         break
3014                 }
3015
3016                 if {$is_path} {
3017                         if {$path ne {}} usage
3018                         break
3019                 } elseif {$a eq {--}} {
3020                         if {$path ne {}} {
3021                                 if {$head ne {}} usage
3022                                 set head $path
3023                                 set path {}
3024                         }
3025                         set is_path 1
3026                 } elseif {[regexp {^--line=(\d+)$} $a a lnum]} {
3027                         if {$jump_spec ne {} || $head ne {}} usage
3028                         set jump_spec [list $lnum]
3029                 } elseif {$head eq {}} {
3030                         if {$head ne {}} usage
3031                         set head $a
3032                         set is_path 1
3033                 } else {
3034                         usage
3035                 }
3036         }
3037         unset is_path
3038
3039         if {$head ne {} && $path eq {}} {
3040                 if {[string index $head 0] eq {/}} {
3041                         set path [normalize_relpath $head]
3042                         set head {}
3043                 } else {
3044                         set path [normalize_relpath $_prefix$head]
3045                         set head {}
3046                 }
3047         }
3048
3049         if {$head eq {}} {
3050                 load_current_branch
3051         } else {
3052                 if {[regexp {^[0-9a-f]{1,39}$} $head]} {
3053                         if {[catch {
3054                                         set head [git rev-parse --verify $head]
3055                                 } err]} {
3056                                 if {[tk windowingsystem] eq "win32"} {
3057                                         tk_messageBox -icon error -title [mc Error] -message $err
3058                                 } else {
3059                                         puts stderr $err
3060                                 }
3061                                 exit 1
3062                         }
3063                 }
3064                 set current_branch $head
3065         }
3066
3067         wm deiconify .
3068         switch -- $subcommand {
3069         browser {
3070                 if {$jump_spec ne {}} usage
3071                 if {$head eq {}} {
3072                         if {$path ne {} && [file isdirectory $path]} {
3073                                 set head $current_branch
3074                         } else {
3075                                 set head $path
3076                                 set path {}
3077                         }
3078                 }
3079                 browser::new $head $path
3080         }
3081         blame   {
3082                 if {$head eq {} && ![file exists $path]} {
3083                         catch {wm withdraw .}
3084                         tk_messageBox \
3085                                 -icon error \
3086                                 -type ok \
3087                                 -title [mc "git-gui: fatal error"] \
3088                                 -message [mc "fatal: cannot stat path %s: No such file or directory" $path]
3089                         exit 1
3090                 }
3091                 blame::new $head $path $jump_spec
3092         }
3093         }
3094         return
3095 }
3096 citool -
3097 gui {
3098         if {[llength $argv] != 0} {
3099                 usage
3100         }
3101         # fall through to setup UI for commits
3102 }
3103 default {
3104         set err "usage: $argv0 \[{blame|browser|citool}\]"
3105         if {[tk windowingsystem] eq "win32"} {
3106                 wm withdraw .
3107                 tk_messageBox -icon error -message $err \
3108                         -title [mc "Usage"]
3109         } else {
3110                 puts stderr $err
3111         }
3112         exit 1
3113 }
3114 }
3115
3116 # -- Branch Control
3117 #
3118 ${NS}::frame .branch
3119 if {!$use_ttk} {.branch configure -borderwidth 1 -relief sunken}
3120 ${NS}::label .branch.l1 \
3121         -text [mc "Current Branch:"] \
3122         -anchor w \
3123         -justify left
3124 ${NS}::label .branch.cb \
3125         -textvariable current_branch \
3126         -anchor w \
3127         -justify left
3128 pack .branch.l1 -side left
3129 pack .branch.cb -side left -fill x
3130 pack .branch -side top -fill x
3131
3132 # -- Main Window Layout
3133 #
3134 ${NS}::panedwindow .vpane -orient horizontal
3135 ${NS}::panedwindow .vpane.files -orient vertical
3136 if {$use_ttk} {
3137         .vpane add .vpane.files
3138 } else {
3139         .vpane add .vpane.files -sticky nsew -height 100 -width 200
3140 }
3141 pack .vpane -anchor n -side top -fill both -expand 1
3142
3143 # -- Index File List
3144 #
3145 ${NS}::frame .vpane.files.index -height 100 -width 200
3146 tlabel .vpane.files.index.title \
3147         -text [mc "Staged Changes (Will Commit)"] \
3148         -background lightgreen -foreground black
3149 text $ui_index -background white -foreground black \
3150         -borderwidth 0 \
3151         -width 20 -height 10 \
3152         -wrap none \
3153         -cursor $cursor_ptr \
3154         -xscrollcommand {.vpane.files.index.sx set} \
3155         -yscrollcommand {.vpane.files.index.sy set} \
3156         -state disabled
3157 ${NS}::scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
3158 ${NS}::scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
3159 pack .vpane.files.index.title -side top -fill x
3160 pack .vpane.files.index.sx -side bottom -fill x
3161 pack .vpane.files.index.sy -side right -fill y
3162 pack $ui_index -side left -fill both -expand 1
3163
3164 # -- Working Directory File List
3165 #
3166 ${NS}::frame .vpane.files.workdir -height 100 -width 200
3167 tlabel .vpane.files.workdir.title -text [mc "Unstaged Changes"] \
3168         -background lightsalmon -foreground black
3169 text $ui_workdir -background white -foreground black \
3170         -borderwidth 0 \
3171         -width 20 -height 10 \
3172         -wrap none \
3173         -cursor $cursor_ptr \
3174         -xscrollcommand {.vpane.files.workdir.sx set} \
3175         -yscrollcommand {.vpane.files.workdir.sy set} \
3176         -state disabled
3177 ${NS}::scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
3178 ${NS}::scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
3179 pack .vpane.files.workdir.title -side top -fill x
3180 pack .vpane.files.workdir.sx -side bottom -fill x
3181 pack .vpane.files.workdir.sy -side right -fill y
3182 pack $ui_workdir -side left -fill both -expand 1
3183
3184 .vpane.files add .vpane.files.workdir
3185 .vpane.files add .vpane.files.index
3186 if {!$use_ttk} {
3187         .vpane.files paneconfigure .vpane.files.workdir -sticky news
3188         .vpane.files paneconfigure .vpane.files.index -sticky news
3189 }
3190
3191 foreach i [list $ui_index $ui_workdir] {
3192         rmsel_tag $i
3193         $i tag conf in_diff -background [$i tag cget in_sel -background]
3194 }
3195 unset i
3196
3197 # -- Diff and Commit Area
3198 #
3199 ${NS}::frame .vpane.lower -height 300 -width 400
3200 ${NS}::frame .vpane.lower.commarea
3201 ${NS}::frame .vpane.lower.diff -relief sunken -borderwidth 1
3202 pack .vpane.lower.diff -fill both -expand 1
3203 pack .vpane.lower.commarea -side bottom -fill x
3204 .vpane add .vpane.lower
3205 if {!$use_ttk} {.vpane paneconfigure .vpane.lower -sticky nsew}
3206
3207 # -- Commit Area Buttons
3208 #
3209 ${NS}::frame .vpane.lower.commarea.buttons
3210 ${NS}::label .vpane.lower.commarea.buttons.l -text {} \
3211         -anchor w \
3212         -justify left
3213 pack .vpane.lower.commarea.buttons.l -side top -fill x
3214 pack .vpane.lower.commarea.buttons -side left -fill y
3215
3216 ${NS}::button .vpane.lower.commarea.buttons.rescan -text [mc Rescan] \
3217         -command ui_do_rescan
3218 pack .vpane.lower.commarea.buttons.rescan -side top -fill x
3219 lappend disable_on_lock \
3220         {.vpane.lower.commarea.buttons.rescan conf -state}
3221
3222 ${NS}::button .vpane.lower.commarea.buttons.incall -text [mc "Stage Changed"] \
3223         -command do_add_all
3224 pack .vpane.lower.commarea.buttons.incall -side top -fill x
3225 lappend disable_on_lock \
3226         {.vpane.lower.commarea.buttons.incall conf -state}
3227
3228 if {![is_enabled nocommitmsg]} {
3229         ${NS}::button .vpane.lower.commarea.buttons.signoff -text [mc "Sign Off"] \
3230                 -command do_signoff
3231         pack .vpane.lower.commarea.buttons.signoff -side top -fill x
3232 }
3233
3234 ${NS}::button .vpane.lower.commarea.buttons.commit -text [commit_btn_caption] \
3235         -command do_commit
3236 pack .vpane.lower.commarea.buttons.commit -side top -fill x
3237 lappend disable_on_lock \
3238         {.vpane.lower.commarea.buttons.commit conf -state}
3239
3240 if {![is_enabled nocommit]} {
3241         ${NS}::button .vpane.lower.commarea.buttons.push -text [mc Push] \
3242                 -command do_push_anywhere
3243         pack .vpane.lower.commarea.buttons.push -side top -fill x
3244 }
3245
3246 # -- Commit Message Buffer
3247 #
3248 ${NS}::frame .vpane.lower.commarea.buffer
3249 ${NS}::frame .vpane.lower.commarea.buffer.header
3250 set ui_comm .vpane.lower.commarea.buffer.t
3251 set ui_coml .vpane.lower.commarea.buffer.header.l
3252
3253 if {![is_enabled nocommit]} {
3254         ${NS}::radiobutton .vpane.lower.commarea.buffer.header.new \
3255                 -text [mc "New Commit"] \
3256                 -command do_select_commit_type \
3257                 -variable selected_commit_type \
3258                 -value new
3259         lappend disable_on_lock \
3260                 [list .vpane.lower.commarea.buffer.header.new conf -state]
3261         ${NS}::radiobutton .vpane.lower.commarea.buffer.header.amend \
3262                 -text [mc "Amend Last Commit"] \
3263                 -command do_select_commit_type \
3264                 -variable selected_commit_type \
3265                 -value amend
3266         lappend disable_on_lock \
3267                 [list .vpane.lower.commarea.buffer.header.amend conf -state]
3268 }
3269
3270 ${NS}::label $ui_coml \
3271         -anchor w \
3272         -justify left
3273 proc trace_commit_type {varname args} {
3274         global ui_coml commit_type
3275         switch -glob -- $commit_type {
3276         initial       {set txt [mc "Initial Commit Message:"]}
3277         amend         {set txt [mc "Amended Commit Message:"]}
3278         amend-initial {set txt [mc "Amended Initial Commit Message:"]}
3279         amend-merge   {set txt [mc "Amended Merge Commit Message:"]}
3280         merge         {set txt [mc "Merge Commit Message:"]}
3281         *             {set txt [mc "Commit Message:"]}
3282         }
3283         $ui_coml conf -text $txt
3284 }
3285 trace add variable commit_type write trace_commit_type
3286 pack $ui_coml -side left -fill x
3287
3288 if {![is_enabled nocommit]} {
3289         pack .vpane.lower.commarea.buffer.header.amend -side right
3290         pack .vpane.lower.commarea.buffer.header.new -side right
3291 }
3292
3293 text $ui_comm -background white -foreground black \
3294         -borderwidth 1 \
3295         -undo true \
3296         -maxundo 20 \
3297         -autoseparators true \
3298         -relief sunken \
3299         -width $repo_config(gui.commitmsgwidth) -height 9 -wrap none \
3300         -font font_diff \
3301         -yscrollcommand {.vpane.lower.commarea.buffer.sby set}
3302 ${NS}::scrollbar .vpane.lower.commarea.buffer.sby \
3303         -command [list $ui_comm yview]
3304 pack .vpane.lower.commarea.buffer.header -side top -fill x
3305 pack .vpane.lower.commarea.buffer.sby -side right -fill y
3306 pack $ui_comm -side left -fill y
3307 pack .vpane.lower.commarea.buffer -side left -fill y
3308
3309 # -- Commit Message Buffer Context Menu
3310 #
3311 set ctxm .vpane.lower.commarea.buffer.ctxm
3312 menu $ctxm -tearoff 0
3313 $ctxm add command \
3314         -label [mc Cut] \
3315         -command {tk_textCut $ui_comm}
3316 $ctxm add command \
3317         -label [mc Copy] \
3318         -command {tk_textCopy $ui_comm}
3319 $ctxm add command \
3320         -label [mc Paste] \
3321         -command {tk_textPaste $ui_comm}
3322 $ctxm add command \
3323         -label [mc Delete] \
3324         -command {catch {$ui_comm delete sel.first sel.last}}
3325 $ctxm add separator
3326 $ctxm add command \
3327         -label [mc "Select All"] \
3328         -command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
3329 $ctxm add command \
3330         -label [mc "Copy All"] \
3331         -command {
3332                 $ui_comm tag add sel 0.0 end
3333                 tk_textCopy $ui_comm
3334                 $ui_comm tag remove sel 0.0 end
3335         }
3336 $ctxm add separator
3337 $ctxm add command \
3338         -label [mc "Sign Off"] \
3339         -command do_signoff
3340 set ui_comm_ctxm $ctxm
3341
3342 # -- Diff Header
3343 #
3344 proc trace_current_diff_path {varname args} {
3345         global current_diff_path diff_actions file_states
3346         if {$current_diff_path eq {}} {
3347                 set s {}
3348                 set f {}
3349                 set p {}
3350                 set o disabled
3351         } else {
3352                 set p $current_diff_path
3353                 set s [mapdesc [lindex $file_states($p) 0] $p]
3354                 set f [mc "File:"]
3355                 set p [escape_path $p]
3356                 set o normal
3357         }
3358
3359         .vpane.lower.diff.header.status configure -text $s
3360         .vpane.lower.diff.header.file configure -text $f
3361         .vpane.lower.diff.header.path configure -text $p
3362         foreach w $diff_actions {
3363                 uplevel #0 $w $o
3364         }
3365 }
3366 trace add variable current_diff_path write trace_current_diff_path
3367
3368 gold_frame .vpane.lower.diff.header
3369 tlabel .vpane.lower.diff.header.status \
3370         -background gold \
3371         -foreground black \
3372         -width $max_status_desc \
3373         -anchor w \
3374         -justify left
3375 tlabel .vpane.lower.diff.header.file \
3376         -background gold \
3377         -foreground black \
3378         -anchor w \
3379         -justify left
3380 tlabel .vpane.lower.diff.header.path \
3381         -background gold \
3382         -foreground black \
3383         -anchor w \
3384         -justify left
3385 pack .vpane.lower.diff.header.status -side left
3386 pack .vpane.lower.diff.header.file -side left
3387 pack .vpane.lower.diff.header.path -fill x
3388 set ctxm .vpane.lower.diff.header.ctxm
3389 menu $ctxm -tearoff 0
3390 $ctxm add command \
3391         -label [mc Copy] \
3392         -command {
3393                 clipboard clear
3394                 clipboard append \
3395                         -format STRING \
3396                         -type STRING \
3397                         -- $current_diff_path
3398         }
3399 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3400 bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"
3401
3402 # -- Diff Body
3403 #
3404 ${NS}::frame .vpane.lower.diff.body
3405 set ui_diff .vpane.lower.diff.body.t
3406 text $ui_diff -background white -foreground black \
3407         -borderwidth 0 \
3408         -width 80 -height 5 -wrap none \
3409         -font font_diff \
3410         -xscrollcommand {.vpane.lower.diff.body.sbx set} \
3411         -yscrollcommand {.vpane.lower.diff.body.sby set} \
3412         -state disabled
3413 catch {$ui_diff configure -tabstyle wordprocessor}
3414 ${NS}::scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
3415         -command [list $ui_diff xview]
3416 ${NS}::scrollbar .vpane.lower.diff.body.sby -orient vertical \
3417         -command [list $ui_diff yview]
3418 pack .vpane.lower.diff.body.sbx -side bottom -fill x
3419 pack .vpane.lower.diff.body.sby -side right -fill y
3420 pack $ui_diff -side left -fill both -expand 1
3421 pack .vpane.lower.diff.header -side top -fill x
3422 pack .vpane.lower.diff.body -side bottom -fill both -expand 1
3423
3424 foreach {n c} {0 black 1 red4 2 green4 3 yellow4 4 blue4 5 magenta4 6 cyan4 7 grey60} {
3425         $ui_diff tag configure clr4$n -background $c
3426         $ui_diff tag configure clri4$n -foreground $c
3427         $ui_diff tag configure clr3$n -foreground $c
3428         $ui_diff tag configure clri3$n -background $c
3429 }
3430 $ui_diff tag configure clr1 -font font_diffbold
3431 $ui_diff tag configure clr4 -underline 1
3432
3433 $ui_diff tag conf d_info -foreground blue -font font_diffbold
3434
3435 $ui_diff tag conf d_cr -elide true
3436 $ui_diff tag conf d_@ -font font_diffbold
3437 $ui_diff tag conf d_+ -foreground {#00a000}
3438 $ui_diff tag conf d_- -foreground red
3439
3440 $ui_diff tag conf d_++ -foreground {#00a000}
3441 $ui_diff tag conf d_-- -foreground red
3442 $ui_diff tag conf d_+s \
3443         -foreground {#00a000} \
3444         -background {#e2effa}
3445 $ui_diff tag conf d_-s \
3446         -foreground red \
3447         -background {#e2effa}
3448 $ui_diff tag conf d_s+ \
3449         -foreground {#00a000} \
3450         -background ivory1
3451 $ui_diff tag conf d_s- \
3452         -foreground red \
3453         -background ivory1
3454
3455 $ui_diff tag conf d< \
3456         -foreground orange \
3457         -font font_diffbold
3458 $ui_diff tag conf d= \
3459         -foreground orange \
3460         -font font_diffbold
3461 $ui_diff tag conf d> \
3462         -foreground orange \
3463         -font font_diffbold
3464
3465 $ui_diff tag raise sel
3466
3467 # -- Diff Body Context Menu
3468 #
3469
3470 proc create_common_diff_popup {ctxm} {
3471         $ctxm add command \
3472                 -label [mc Refresh] \
3473                 -command reshow_diff
3474         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3475         $ctxm add command \
3476                 -label [mc Copy] \
3477                 -command {tk_textCopy $ui_diff}
3478         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3479         $ctxm add command \
3480                 -label [mc "Select All"] \
3481                 -command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
3482         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3483         $ctxm add command \
3484                 -label [mc "Copy All"] \
3485                 -command {
3486                         $ui_diff tag add sel 0.0 end
3487                         tk_textCopy $ui_diff
3488                         $ui_diff tag remove sel 0.0 end
3489                 }
3490         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3491         $ctxm add separator
3492         $ctxm add command \
3493                 -label [mc "Decrease Font Size"] \
3494                 -command {incr_font_size font_diff -1}
3495         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3496         $ctxm add command \
3497                 -label [mc "Increase Font Size"] \
3498                 -command {incr_font_size font_diff 1}
3499         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3500         $ctxm add separator
3501         set emenu $ctxm.enc
3502         menu $emenu
3503         build_encoding_menu $emenu [list force_diff_encoding]
3504         $ctxm add cascade \
3505                 -label [mc "Encoding"] \
3506                 -menu $emenu
3507         lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3508         $ctxm add separator
3509         $ctxm add command -label [mc "Options..."] \
3510                 -command do_options
3511 }
3512
3513 set ctxm .vpane.lower.diff.body.ctxm
3514 menu $ctxm -tearoff 0
3515 $ctxm add command \
3516         -label [mc "Apply/Reverse Hunk"] \
3517         -command {apply_hunk $cursorX $cursorY}
3518 set ui_diff_applyhunk [$ctxm index last]
3519 lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
3520 $ctxm add command \
3521         -label [mc "Apply/Reverse Line"] \
3522         -command {apply_range_or_line $cursorX $cursorY; do_rescan}
3523 set ui_diff_applyline [$ctxm index last]
3524 lappend diff_actions [list $ctxm entryconf $ui_diff_applyline -state]
3525 $ctxm add separator
3526 $ctxm add command \
3527         -label [mc "Show Less Context"] \
3528         -command show_less_context
3529 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3530 $ctxm add command \
3531         -label [mc "Show More Context"] \
3532         -command show_more_context
3533 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3534 $ctxm add separator
3535 create_common_diff_popup $ctxm
3536
3537 set ctxmmg .vpane.lower.diff.body.ctxmmg
3538 menu $ctxmmg -tearoff 0
3539 $ctxmmg add command \
3540         -label [mc "Run Merge Tool"] \
3541         -command {merge_resolve_tool}
3542 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3543 $ctxmmg add separator
3544 $ctxmmg add command \
3545         -label [mc "Use Remote Version"] \
3546         -command {merge_resolve_one 3}
3547 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3548 $ctxmmg add command \
3549         -label [mc "Use Local Version"] \
3550         -command {merge_resolve_one 2}
3551 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3552 $ctxmmg add command \
3553         -label [mc "Revert To Base"] \
3554         -command {merge_resolve_one 1}
3555 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3556 $ctxmmg add separator
3557 $ctxmmg add command \
3558         -label [mc "Show Less Context"] \
3559         -command show_less_context
3560 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3561 $ctxmmg add command \
3562         -label [mc "Show More Context"] \
3563         -command show_more_context
3564 lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
3565 $ctxmmg add separator
3566 create_common_diff_popup $ctxmmg
3567
3568 set ctxmsm .vpane.lower.diff.body.ctxmsm
3569 menu $ctxmsm -tearoff 0
3570 $ctxmsm add command \
3571         -label [mc "Visualize These Changes In The Submodule"] \
3572         -command {do_gitk -- true}
3573 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3574 $ctxmsm add command \
3575         -label [mc "Visualize Current Branch History In The Submodule"] \
3576         -command {do_gitk {} true}
3577 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3578 $ctxmsm add command \
3579         -label [mc "Visualize All Branch History In The Submodule"] \
3580         -command {do_gitk --all true}
3581 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3582 $ctxmsm add separator
3583 $ctxmsm add command \
3584         -label [mc "Start git gui In The Submodule"] \
3585         -command {do_git_gui}
3586 lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
3587 $ctxmsm add separator
3588 create_common_diff_popup $ctxmsm
3589
3590 proc has_textconv {path} {
3591         if {[is_config_false gui.textconv]} {
3592                 return 0
3593         }
3594         set filter [gitattr $path diff set]
3595         set textconv [get_config [join [list diff $filter textconv] .]]
3596         if {$filter ne {set} && $textconv ne {}} {
3597                 return 1
3598         } else {
3599                 return 0
3600         }
3601 }
3602
3603 proc popup_diff_menu {ctxm ctxmmg ctxmsm x y X Y} {
3604         global current_diff_path file_states
3605         set ::cursorX $x
3606         set ::cursorY $y
3607         if {[info exists file_states($current_diff_path)]} {
3608                 set state [lindex $file_states($current_diff_path) 0]
3609         } else {
3610                 set state {__}
3611         }
3612         if {[string first {U} $state] >= 0} {
3613                 tk_popup $ctxmmg $X $Y
3614         } elseif {$::is_submodule_diff} {
3615                 tk_popup $ctxmsm $X $Y
3616         } else {
3617                 set has_range [expr {[$::ui_diff tag nextrange sel 0.0] != {}}]
3618                 if {$::ui_index eq $::current_diff_side} {
3619                         set l [mc "Unstage Hunk From Commit"]
3620                         if {$has_range} {
3621                                 set t [mc "Unstage Lines From Commit"]
3622                         } else {
3623                                 set t [mc "Unstage Line From Commit"]
3624                         }
3625                 } else {
3626                         set l [mc "Stage Hunk For Commit"]
3627                         if {$has_range} {
3628                                 set t [mc "Stage Lines For Commit"]
3629                         } else {
3630                                 set t [mc "Stage Line For Commit"]
3631                         }
3632                 }
3633                 if {$::is_3way_diff
3634                         || $current_diff_path eq {}
3635                         || {__} eq $state
3636                         || {_O} eq $state
3637                         || [string match {?T} $state]
3638                         || [string match {T?} $state]
3639                         || [has_textconv $current_diff_path]} {
3640                         set s disabled
3641                 } else {
3642                         set s normal
3643                 }
3644                 $ctxm entryconf $::ui_diff_applyhunk -state $s -label $l
3645                 $ctxm entryconf $::ui_diff_applyline -state $s -label $t
3646                 tk_popup $ctxm $X $Y
3647         }
3648 }
3649 bind_button3 $ui_diff [list popup_diff_menu $ctxm $ctxmmg $ctxmsm %x %y %X %Y]
3650
3651 # -- Status Bar
3652 #
3653 set main_status [::status_bar::new .status]
3654 pack .status -anchor w -side bottom -fill x
3655 $main_status show [mc "Initializing..."]
3656
3657 # -- Load geometry
3658 #
3659 proc on_ttk_pane_mapped {w pane pos} {
3660         bind $w <Map> {}
3661         after 0 [list after idle [list $w sashpos $pane $pos]]
3662 }
3663 proc on_tk_pane_mapped {w pane x y} {
3664         bind $w <Map> {}
3665         after 0 [list after idle [list $w sash place $pane $x $y]]
3666 }
3667 proc on_application_mapped {} {
3668         global repo_config use_ttk
3669         bind . <Map> {}
3670         set gm $repo_config(gui.geometry)
3671         if {$use_ttk} {
3672                 bind .vpane <Map> \
3673                     [list on_ttk_pane_mapped %W 0 [lindex $gm 1]]
3674                 bind .vpane.files <Map> \
3675                     [list on_ttk_pane_mapped %W 0 [lindex $gm 2]]
3676         } else {
3677                 bind .vpane <Map> \
3678                     [list on_tk_pane_mapped %W 0 \
3679                          [lindex $gm 1] \
3680                          [lindex [.vpane sash coord 0] 1]]
3681                 bind .vpane.files <Map> \
3682                     [list on_tk_pane_mapped %W 0 \
3683                          [lindex [.vpane.files sash coord 0] 0] \
3684                          [lindex $gm 2]]
3685         }
3686         wm geometry . [lindex $gm 0]
3687 }
3688 if {[info exists repo_config(gui.geometry)]} {
3689         bind . <Map> [list on_application_mapped]
3690         wm geometry . [lindex $repo_config(gui.geometry) 0]
3691 }
3692
3693 # -- Load window state
3694 #
3695 if {[info exists repo_config(gui.wmstate)]} {
3696         catch {wm state . $repo_config(gui.wmstate)}
3697 }
3698
3699 # -- Key Bindings
3700 #
3701 bind $ui_comm <$M1B-Key-Return> {do_commit;break}
3702 bind $ui_comm <$M1B-Key-t> {do_add_selection;break}
3703 bind $ui_comm <$M1B-Key-T> {do_add_selection;break}
3704 bind $ui_comm <$M1B-Key-u> {do_unstage_selection;break}
3705 bind $ui_comm <$M1B-Key-U> {do_unstage_selection;break}
3706 bind $ui_comm <$M1B-Key-j> {do_revert_selection;break}
3707 bind $ui_comm <$M1B-Key-J> {do_revert_selection;break}
3708 bind $ui_comm <$M1B-Key-i> {do_add_all;break}
3709 bind $ui_comm <$M1B-Key-I> {do_add_all;break}
3710 bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
3711 bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
3712 bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
3713 bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
3714 bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
3715 bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
3716 bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3717 bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3718 bind $ui_comm <$M1B-Key-minus> {show_less_context;break}
3719 bind $ui_comm <$M1B-Key-KP_Subtract> {show_less_context;break}
3720 bind $ui_comm <$M1B-Key-equal> {show_more_context;break}
3721 bind $ui_comm <$M1B-Key-plus> {show_more_context;break}
3722 bind $ui_comm <$M1B-Key-KP_Add> {show_more_context;break}
3723
3724 bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
3725 bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
3726 bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
3727 bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
3728 bind $ui_diff <$M1B-Key-v> {break}
3729 bind $ui_diff <$M1B-Key-V> {break}
3730 bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
3731 bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
3732 bind $ui_diff <$M1B-Key-j> {do_revert_selection;break}
3733 bind $ui_diff <$M1B-Key-J> {do_revert_selection;break}
3734 bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
3735 bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
3736 bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
3737 bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
3738 bind $ui_diff <Key-k>         {catch {%W yview scroll -1 units};break}
3739 bind $ui_diff <Key-j>         {catch {%W yview scroll  1 units};break}
3740 bind $ui_diff <Key-h>         {catch {%W xview scroll -1 units};break}
3741 bind $ui_diff <Key-l>         {catch {%W xview scroll  1 units};break}
3742 bind $ui_diff <Control-Key-b> {catch {%W yview scroll -1 pages};break}
3743 bind $ui_diff <Control-Key-f> {catch {%W yview scroll  1 pages};break}
3744 bind $ui_diff <Button-1>   {focus %W}
3745
3746 if {[is_enabled branch]} {
3747         bind . <$M1B-Key-n> branch_create::dialog
3748         bind . <$M1B-Key-N> branch_create::dialog
3749         bind . <$M1B-Key-o> branch_checkout::dialog
3750         bind . <$M1B-Key-O> branch_checkout::dialog
3751         bind . <$M1B-Key-m> merge::dialog
3752         bind . <$M1B-Key-M> merge::dialog
3753 }
3754 if {[is_enabled transport]} {
3755         bind . <$M1B-Key-p> do_push_anywhere
3756         bind . <$M1B-Key-P> do_push_anywhere
3757 }
3758
3759 bind .   <Key-F5>     ui_do_rescan
3760 bind .   <$M1B-Key-r> ui_do_rescan
3761 bind .   <$M1B-Key-R> ui_do_rescan
3762 bind .   <$M1B-Key-s> do_signoff
3763 bind .   <$M1B-Key-S> do_signoff
3764 bind .   <$M1B-Key-t> do_add_selection
3765 bind .   <$M1B-Key-T> do_add_selection
3766 bind .   <$M1B-Key-u> do_unstage_selection
3767 bind .   <$M1B-Key-U> do_unstage_selection
3768 bind .   <$M1B-Key-j> do_revert_selection
3769 bind .   <$M1B-Key-J> do_revert_selection
3770 bind .   <$M1B-Key-i> do_add_all
3771 bind .   <$M1B-Key-I> do_add_all
3772 bind .   <$M1B-Key-minus> {show_less_context;break}
3773 bind .   <$M1B-Key-KP_Subtract> {show_less_context;break}
3774 bind .   <$M1B-Key-equal> {show_more_context;break}
3775 bind .   <$M1B-Key-plus> {show_more_context;break}
3776 bind .   <$M1B-Key-KP_Add> {show_more_context;break}
3777 bind .   <$M1B-Key-Return> do_commit
3778 foreach i [list $ui_index $ui_workdir] {
3779         bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
3780         bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
3781         bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
3782 }
3783 unset i
3784
3785 set file_lists($ui_index) [list]
3786 set file_lists($ui_workdir) [list]
3787
3788 wm title . "[appname] ([reponame]) [file normalize $_gitworktree]"
3789 focus -force $ui_comm
3790
3791 # -- Warn the user about environmental problems.  Cygwin's Tcl
3792 #    does *not* pass its env array onto any processes it spawns.
3793 #    This means that git processes get none of our environment.
3794 #
3795 if {[is_Cygwin]} {
3796         set ignored_env 0
3797         set suggest_user {}
3798         set msg [mc "Possible environment issues exist.
3799
3800 The following environment variables are probably
3801 going to be ignored by any Git subprocess run
3802 by %s:
3803
3804 " [appname]]
3805         foreach name [array names env] {
3806                 switch -regexp -- $name {
3807                 {^GIT_INDEX_FILE$} -
3808                 {^GIT_OBJECT_DIRECTORY$} -
3809                 {^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
3810                 {^GIT_DIFF_OPTS$} -
3811                 {^GIT_EXTERNAL_DIFF$} -
3812                 {^GIT_PAGER$} -
3813                 {^GIT_TRACE$} -
3814                 {^GIT_CONFIG$} -
3815                 {^GIT_(AUTHOR|COMMITTER)_DATE$} {
3816                         append msg " - $name\n"
3817                         incr ignored_env
3818                 }
3819                 {^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
3820                         append msg " - $name\n"
3821                         incr ignored_env
3822                         set suggest_user $name
3823                 }
3824                 }
3825         }
3826         if {$ignored_env > 0} {
3827                 append msg [mc "
3828 This is due to a known issue with the
3829 Tcl binary distributed by Cygwin."]
3830
3831                 if {$suggest_user ne {}} {
3832                         append msg [mc "
3833
3834 A good replacement for %s
3835 is placing values for the user.name and
3836 user.email settings into your personal
3837 ~/.gitconfig file.
3838 " $suggest_user]
3839                 }
3840                 warn_popup $msg
3841         }
3842         unset ignored_env msg suggest_user name
3843 }
3844
3845 # -- Only initialize complex UI if we are going to stay running.
3846 #
3847 if {[is_enabled transport]} {
3848         load_all_remotes
3849
3850         set n [.mbar.remote index end]
3851         populate_remotes_menu
3852         set n [expr {[.mbar.remote index end] - $n}]
3853         if {$n > 0} {
3854                 if {[.mbar.remote type 0] eq "tearoff"} { incr n }
3855                 .mbar.remote insert $n separator
3856         }
3857         unset n
3858 }
3859
3860 if {[winfo exists $ui_comm]} {
3861         set GITGUI_BCK_exists [load_message GITGUI_BCK utf-8]
3862
3863         # -- If both our backup and message files exist use the
3864         #    newer of the two files to initialize the buffer.
3865         #
3866         if {$GITGUI_BCK_exists} {
3867                 set m [gitdir GITGUI_MSG]
3868                 if {[file isfile $m]} {
3869                         if {[file mtime [gitdir GITGUI_BCK]] > [file mtime $m]} {
3870                                 catch {file delete [gitdir GITGUI_MSG]}
3871                         } else {
3872                                 $ui_comm delete 0.0 end
3873                                 $ui_comm edit reset
3874                                 $ui_comm edit modified false
3875                                 catch {file delete [gitdir GITGUI_BCK]}
3876                                 set GITGUI_BCK_exists 0
3877                         }
3878                 }
3879                 unset m
3880         }
3881
3882         proc backup_commit_buffer {} {
3883                 global ui_comm GITGUI_BCK_exists
3884
3885                 set m [$ui_comm edit modified]
3886                 if {$m || $GITGUI_BCK_exists} {
3887                         set msg [string trim [$ui_comm get 0.0 end]]
3888                         regsub -all -line {[ \r\t]+$} $msg {} msg
3889
3890                         if {$msg eq {}} {
3891                                 if {$GITGUI_BCK_exists} {
3892                                         catch {file delete [gitdir GITGUI_BCK]}
3893                                         set GITGUI_BCK_exists 0
3894                                 }
3895                         } elseif {$m} {
3896                                 catch {
3897                                         set fd [open [gitdir GITGUI_BCK] w]
3898                                         fconfigure $fd -encoding utf-8
3899                                         puts -nonewline $fd $msg
3900                                         close $fd
3901                                         set GITGUI_BCK_exists 1
3902                                 }
3903                         }
3904
3905                         $ui_comm edit modified false
3906                 }
3907
3908                 set ::GITGUI_BCK_i [after 2000 backup_commit_buffer]
3909         }
3910
3911         backup_commit_buffer
3912
3913         # -- If the user has aspell available we can drive it
3914         #    in pipe mode to spellcheck the commit message.
3915         #
3916         set spell_cmd [list |]
3917         set spell_dict [get_config gui.spellingdictionary]
3918         lappend spell_cmd aspell
3919         if {$spell_dict ne {}} {
3920                 lappend spell_cmd --master=$spell_dict
3921         }
3922         lappend spell_cmd --mode=none
3923         lappend spell_cmd --encoding=utf-8
3924         lappend spell_cmd pipe
3925         if {$spell_dict eq {none}
3926          || [catch {set spell_fd [open $spell_cmd r+]} spell_err]} {
3927                 bind_button3 $ui_comm [list tk_popup $ui_comm_ctxm %X %Y]
3928         } else {
3929                 set ui_comm_spell [spellcheck::init \
3930                         $spell_fd \
3931                         $ui_comm \
3932                         $ui_comm_ctxm \
3933                 ]
3934         }
3935         unset -nocomplain spell_cmd spell_fd spell_err spell_dict
3936 }
3937
3938 lock_index begin-read
3939 if {![winfo ismapped .]} {
3940         wm deiconify .
3941 }
3942 after 1 {
3943         if {[is_enabled initialamend]} {
3944                 force_amend
3945         } else {
3946                 do_rescan
3947         }
3948
3949         if {[is_enabled nocommitmsg]} {
3950                 $ui_comm configure -state disabled -background gray
3951         }
3952 }
3953 if {[is_enabled multicommit] && ![is_config_false gui.gcwarning]} {
3954         after 1000 hint_gc
3955 }
3956 if {[is_enabled retcode]} {
3957         bind . <Destroy> {+terminate_me %W}
3958 }
3959 if {$picked && [is_config_true gui.autoexplore]} {
3960         do_explore
3961 }
3962
3963 # Local variables:
3964 # mode: tcl
3965 # indent-tabs-mode: t
3966 # tab-width: 4
3967 # End: