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