git-gui.sh

   1 #!/bin/sh
   2 # Tcl ignores the next line -*- tcl -*- \
   3 exec wish "$0" -- "$@"
   4
   5 set appvers {@@GIT_VERSION@@}
   6 set copyright {
   7 Copyright © 2006, 2007 Shawn Pearce, Paul Mackerras.
   8
   9 This program is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2 of the License, or
  12 (at your option) any later version.
  13
  14 This program is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with this program; if not, write to the Free Software
  21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA}
  22
  23 ######################################################################
  24 ##
  25 ## read only globals
  26
  27 set _appname [lindex [file split $argv0] end]
  28 set _gitdir {}
  29 set _reponame {}
  30
  31 proc appname {} {
  32         global _appname
  33         return $_appname
  34 }
  35
  36 proc gitdir {args} {
  37         global _gitdir
  38         if {$args eq {}} {
  39                 return $_gitdir
  40         }
  41         return [eval [concat [list file join $_gitdir] $args]]
  42 }
  43
  44 proc reponame {} {
  45         global _reponame
  46         return $_reponame
  47 }
  48
  49 ######################################################################
  50 ##
  51 ## config
  52
  53 proc is_many_config {name} {
  54         switch -glob -- $name {
  55         remote.*.fetch -
  56         remote.*.push
  57                 {return 1}
  58         *
  59                 {return 0}
  60         }
  61 }
  62
  63 proc load_config {include_global} {
  64         global repo_config global_config default_config
  65
  66         array unset global_config
  67         if {$include_global} {
  68                 catch {
  69                         set fd_rc [open "| git repo-config --global --list" r]
  70                         while {[gets $fd_rc line] >= 0} {
  71                                 if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
  72                                         if {[is_many_config $name]} {
  73                                                 lappend global_config($name) $value
  74                                         } else {
  75                                                 set global_config($name) $value
  76                                         }
  77                                 }
  78                         }
  79                         close $fd_rc
  80                 }
  81         }
  82
  83         array unset repo_config
  84         catch {
  85                 set fd_rc [open "| git repo-config --list" r]
  86                 while {[gets $fd_rc line] >= 0} {
  87                         if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
  88                                 if {[is_many_config $name]} {
  89                                         lappend repo_config($name) $value
  90                                 } else {
  91                                         set repo_config($name) $value
  92                                 }
  93                         }
  94                 }
  95                 close $fd_rc
  96         }
  97
  98         foreach name [array names default_config] {
  99                 if {[catch {set v $global_config($name)}]} {
 100                         set global_config($name) $default_config($name)
 101                 }
 102                 if {[catch {set v $repo_config($name)}]} {
 103                         set repo_config($name) $default_config($name)
 104                 }
 105         }
 106 }
 107
 108 proc save_config {} {
 109         global default_config font_descs
 110         global repo_config global_config
 111         global repo_config_new global_config_new
 112
 113         foreach option $font_descs {
 114                 set name [lindex $option 0]
 115                 set font [lindex $option 1]
 116                 font configure $font \
 117                         -family $global_config_new(gui.$font^^family) \
 118                         -size $global_config_new(gui.$font^^size)
 119                 font configure ${font}bold \
 120                         -family $global_config_new(gui.$font^^family) \
 121                         -size $global_config_new(gui.$font^^size)
 122                 set global_config_new(gui.$name) [font configure $font]
 123                 unset global_config_new(gui.$font^^family)
 124                 unset global_config_new(gui.$font^^size)
 125         }
 126
 127         foreach name [array names default_config] {
 128                 set value $global_config_new($name)
 129                 if {$value ne $global_config($name)} {
 130                         if {$value eq $default_config($name)} {
 131                                 catch {exec git repo-config --global --unset $name}
 132                         } else {
 133                                 regsub -all "\[{}\]" $value {"} value
 134                                 exec git repo-config --global $name $value
 135                         }
 136                         set global_config($name) $value
 137                         if {$value eq $repo_config($name)} {
 138                                 catch {exec git repo-config --unset $name}
 139                                 set repo_config($name) $value
 140                         }
 141                 }
 142         }
 143
 144         foreach name [array names default_config] {
 145                 set value $repo_config_new($name)
 146                 if {$value ne $repo_config($name)} {
 147                         if {$value eq $global_config($name)} {
 148                                 catch {exec git repo-config --unset $name}
 149                         } else {
 150                                 regsub -all "\[{}\]" $value {"} value
 151                                 exec git repo-config $name $value
 152                         }
 153                         set repo_config($name) $value
 154                 }
 155         }
 156 }
 157
 158 proc error_popup {msg} {
 159         set title [appname]
 160         if {[reponame] ne {}} {
 161                 append title " ([reponame])"
 162         }
 163         set cmd [list tk_messageBox \
 164                 -icon error \
 165                 -type ok \
 166                 -title "$title: error" \
 167                 -message $msg]
 168         if {[winfo ismapped .]} {
 169                 lappend cmd -parent .
 170         }
 171         eval $cmd
 172 }
 173
 174 proc warn_popup {msg} {
 175         set title [appname]
 176         if {[reponame] ne {}} {
 177                 append title " ([reponame])"
 178         }
 179         set cmd [list tk_messageBox \
 180                 -icon warning \
 181                 -type ok \
 182                 -title "$title: warning" \
 183                 -message $msg]
 184         if {[winfo ismapped .]} {
 185                 lappend cmd -parent .
 186         }
 187         eval $cmd
 188 }
 189
 190 proc info_popup {msg} {
 191         set title [appname]
 192         if {[reponame] ne {}} {
 193                 append title " ([reponame])"
 194         }
 195         tk_messageBox \
 196                 -parent . \
 197                 -icon info \
 198                 -type ok \
 199                 -title $title \
 200                 -message $msg
 201 }
 202
 203 proc ask_popup {msg} {
 204         set title [appname]
 205         if {[reponame] ne {}} {
 206                 append title " ([reponame])"
 207         }
 208         return [tk_messageBox \
 209                 -parent . \
 210                 -icon question \
 211                 -type yesno \
 212                 -title $title \
 213                 -message $msg]
 214 }
 215
 216 ######################################################################
 217 ##
 218 ## repository setup
 219
 220 if {   [catch {set _gitdir $env(GIT_DIR)}]
 221         && [catch {set _gitdir [exec git rev-parse --git-dir]} err]} {
 222         catch {wm withdraw .}
 223         error_popup "Cannot find the git directory:\n\n$err"
 224         exit 1
 225 }
 226 if {![file isdirectory $_gitdir]} {
 227         catch {wm withdraw .}
 228         error_popup "Git directory not found:\n\n$_gitdir"
 229         exit 1
 230 }
 231 if {[lindex [file split $_gitdir] end] ne {.git}} {
 232         catch {wm withdraw .}
 233         error_popup "Cannot use funny .git directory:\n\n$gitdir"
 234         exit 1
 235 }
 236 if {[catch {cd [file dirname $_gitdir]} err]} {
 237         catch {wm withdraw .}
 238         error_popup "No working directory [file dirname $_gitdir]:\n\n$err"
 239         exit 1
 240 }
 241 set _reponame [lindex [file split \
 242         [file normalize [file dirname $_gitdir]]] \
 243         end]
 244
 245 set single_commit 0
 246 if {[appname] eq {git-citool}} {
 247         set single_commit 1
 248 }
 249
 250 ######################################################################
 251 ##
 252 ## task management
 253
 254 set rescan_active 0
 255 set diff_active 0
 256 set last_clicked {}
 257
 258 set disable_on_lock [list]
 259 set index_lock_type none
 260
 261 proc lock_index {type} {
 262         global index_lock_type disable_on_lock
 263
 264         if {$index_lock_type eq {none}} {
 265                 set index_lock_type $type
 266                 foreach w $disable_on_lock {
 267                         uplevel #0 $w disabled
 268                 }
 269                 return 1
 270         } elseif {$index_lock_type eq "begin-$type"} {
 271                 set index_lock_type $type
 272                 return 1
 273         }
 274         return 0
 275 }
 276
 277 proc unlock_index {} {
 278         global index_lock_type disable_on_lock
 279
 280         set index_lock_type none
 281         foreach w $disable_on_lock {
 282                 uplevel #0 $w normal
 283         }
 284 }
 285
 286 ######################################################################
 287 ##
 288 ## status
 289
 290 proc repository_state {ctvar hdvar mhvar} {
 291         global current_branch
 292         upvar $ctvar ct $hdvar hd $mhvar mh
 293
 294         set mh [list]
 295
 296         if {[catch {set current_branch [exec git symbolic-ref HEAD]}]} {
 297                 set current_branch {}
 298         } else {
 299                 regsub ^refs/((heads|tags|remotes)/)? \
 300                         $current_branch \
 301                         {} \
 302                         current_branch
 303         }
 304
 305         if {[catch {set hd [exec git rev-parse --verify HEAD]}]} {
 306                 set hd {}
 307                 set ct initial
 308                 return
 309         }
 310
 311         set merge_head [gitdir MERGE_HEAD]
 312         if {[file exists $merge_head]} {
 313                 set ct merge
 314                 set fd_mh [open $merge_head r]
 315                 while {[gets $fd_mh line] >= 0} {
 316                         lappend mh $line
 317                 }
 318                 close $fd_mh
 319                 return
 320         }
 321
 322         set ct normal
 323 }
 324
 325 proc PARENT {} {
 326         global PARENT empty_tree
 327
 328         set p [lindex $PARENT 0]
 329         if {$p ne {}} {
 330                 return $p
 331         }
 332         if {$empty_tree eq {}} {
 333                 set empty_tree [exec git mktree << {}]
 334         }
 335         return $empty_tree
 336 }
 337
 338 proc rescan {after} {
 339         global HEAD PARENT MERGE_HEAD commit_type
 340         global ui_index ui_workdir ui_status_value ui_comm
 341         global rescan_active file_states
 342         global repo_config
 343
 344         if {$rescan_active > 0 || ![lock_index read]} return
 345
 346         repository_state newType newHEAD newMERGE_HEAD
 347         if {[string match amend* $commit_type]
 348                 && $newType eq {normal}
 349                 && $newHEAD eq $HEAD} {
 350         } else {
 351                 set HEAD $newHEAD
 352                 set PARENT $newHEAD
 353                 set MERGE_HEAD $newMERGE_HEAD
 354                 set commit_type $newType
 355         }
 356
 357         array unset file_states
 358
 359         if {![$ui_comm edit modified]
 360                 || [string trim [$ui_comm get 0.0 end]] eq {}} {
 361                 if {[load_message GITGUI_MSG]} {
 362                 } elseif {[load_message MERGE_MSG]} {
 363                 } elseif {[load_message SQUASH_MSG]} {
 364                 }
 365                 $ui_comm edit reset
 366                 $ui_comm edit modified false
 367         }
 368
 369         if {$repo_config(gui.trustmtime) eq {true}} {
 370                 rescan_stage2 {} $after
 371         } else {
 372                 set rescan_active 1
 373                 set ui_status_value {Refreshing file status...}
 374                 set cmd [list git update-index]
 375                 lappend cmd -q
 376                 lappend cmd --unmerged
 377                 lappend cmd --ignore-missing
 378                 lappend cmd --refresh
 379                 set fd_rf [open "| $cmd" r]
 380                 fconfigure $fd_rf -blocking 0 -translation binary
 381                 fileevent $fd_rf readable \
 382                         [list rescan_stage2 $fd_rf $after]
 383         }
 384 }
 385
 386 proc rescan_stage2 {fd after} {
 387         global ui_status_value
 388         global rescan_active buf_rdi buf_rdf buf_rlo
 389
 390         if {$fd ne {}} {
 391                 read $fd
 392                 if {![eof $fd]} return
 393                 close $fd
 394         }
 395
 396         set ls_others [list | git ls-files --others -z \
 397                 --exclude-per-directory=.gitignore]
 398         set info_exclude [gitdir info exclude]
 399         if {[file readable $info_exclude]} {
 400                 lappend ls_others "--exclude-from=$info_exclude"
 401         }
 402
 403         set buf_rdi {}
 404         set buf_rdf {}
 405         set buf_rlo {}
 406
 407         set rescan_active 3
 408         set ui_status_value {Scanning for modified files ...}
 409         set fd_di [open "| git diff-index --cached -z [PARENT]" r]
 410         set fd_df [open "| git diff-files -z" r]
 411         set fd_lo [open $ls_others r]
 412
 413         fconfigure $fd_di -blocking 0 -translation binary
 414         fconfigure $fd_df -blocking 0 -translation binary
 415         fconfigure $fd_lo -blocking 0 -translation binary
 416         fileevent $fd_di readable [list read_diff_index $fd_di $after]
 417         fileevent $fd_df readable [list read_diff_files $fd_df $after]
 418         fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
 419 }
 420
 421 proc load_message {file} {
 422         global ui_comm
 423
 424         set f [gitdir $file]
 425         if {[file isfile $f]} {
 426                 if {[catch {set fd [open $f r]}]} {
 427                         return 0
 428                 }
 429                 set content [string trim [read $fd]]
 430                 close $fd
 431                 $ui_comm delete 0.0 end
 432                 $ui_comm insert end $content
 433                 return 1
 434         }
 435         return 0
 436 }
 437
 438 proc read_diff_index {fd after} {
 439         global buf_rdi
 440
 441         append buf_rdi [read $fd]
 442         set c 0
 443         set n [string length $buf_rdi]
 444         while {$c < $n} {
 445                 set z1 [string first "\0" $buf_rdi $c]
 446                 if {$z1 == -1} break
 447                 incr z1
 448                 set z2 [string first "\0" $buf_rdi $z1]
 449                 if {$z2 == -1} break
 450
 451                 incr c
 452                 set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
 453                 merge_state \
 454                         [string range $buf_rdi $z1 [expr {$z2 - 1}]] \
 455                         [lindex $i 4]? \
 456                         [list [lindex $i 0] [lindex $i 2]] \
 457                         [list]
 458                 set c $z2
 459                 incr c
 460         }
 461         if {$c < $n} {
 462                 set buf_rdi [string range $buf_rdi $c end]
 463         } else {
 464                 set buf_rdi {}
 465         }
 466
 467         rescan_done $fd buf_rdi $after
 468 }
 469
 470 proc read_diff_files {fd after} {
 471         global buf_rdf
 472
 473         append buf_rdf [read $fd]
 474         set c 0
 475         set n [string length $buf_rdf]
 476         while {$c < $n} {
 477                 set z1 [string first "\0" $buf_rdf $c]
 478                 if {$z1 == -1} break
 479                 incr z1
 480                 set z2 [string first "\0" $buf_rdf $z1]
 481                 if {$z2 == -1} break
 482
 483                 incr c
 484                 set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
 485                 merge_state \
 486                         [string range $buf_rdf $z1 [expr {$z2 - 1}]] \
 487                         ?[lindex $i 4] \
 488                         [list] \
 489                         [list [lindex $i 0] [lindex $i 2]]
 490                 set c $z2
 491                 incr c
 492         }
 493         if {$c < $n} {
 494                 set buf_rdf [string range $buf_rdf $c end]
 495         } else {
 496                 set buf_rdf {}
 497         }
 498
 499         rescan_done $fd buf_rdf $after
 500 }
 501
 502 proc read_ls_others {fd after} {
 503         global buf_rlo
 504
 505         append buf_rlo [read $fd]
 506         set pck [split $buf_rlo "\0"]
 507         set buf_rlo [lindex $pck end]
 508         foreach p [lrange $pck 0 end-1] {
 509                 merge_state $p ?O
 510         }
 511         rescan_done $fd buf_rlo $after
 512 }
 513
 514 proc rescan_done {fd buf after} {
 515         global rescan_active
 516         global file_states repo_config
 517         upvar $buf to_clear
 518
 519         if {![eof $fd]} return
 520         set to_clear {}
 521         close $fd
 522         if {[incr rescan_active -1] > 0} return
 523
 524         prune_selection
 525         unlock_index
 526         display_all_files
 527         reshow_diff
 528         uplevel #0 $after
 529 }
 530
 531 proc prune_selection {} {
 532         global file_states selected_paths
 533
 534         foreach path [array names selected_paths] {
 535                 if {[catch {set still_here $file_states($path)}]} {
 536                         unset selected_paths($path)
 537                 }
 538         }
 539 }
 540
 541 ######################################################################
 542 ##
 543 ## diff
 544
 545 proc clear_diff {} {
 546         global ui_diff current_diff_path ui_index ui_workdir
 547
 548         $ui_diff conf -state normal
 549         $ui_diff delete 0.0 end
 550         $ui_diff conf -state disabled
 551
 552         set current_diff_path {}
 553
 554         $ui_index tag remove in_diff 0.0 end
 555         $ui_workdir tag remove in_diff 0.0 end
 556 }
 557
 558 proc reshow_diff {} {
 559         global ui_status_value file_states file_lists
 560         global current_diff_path current_diff_side
 561
 562         set p $current_diff_path
 563         if {$p eq {}
 564                 || $current_diff_side eq {}
 565                 || [catch {set s $file_states($p)}]
 566                 || [lsearch -sorted $file_lists($current_diff_side) $p] == -1} {
 567                 clear_diff
 568         } else {
 569                 show_diff $p $current_diff_side
 570         }
 571 }
 572
 573 proc handle_empty_diff {} {
 574         global current_diff_path file_states file_lists
 575
 576         set path $current_diff_path
 577         set s $file_states($path)
 578         if {[lindex $s 0] ne {_M}} return
 579
 580         info_popup "No differences detected.
 581
 582 [short_path $path] has no changes.
 583
 584 The modification date of this file was updated
 585 by another application and you currently have
 586 the Trust File Modification Timestamps option
 587 enabled, so Git did not automatically detect
 588 that there are no content differences in this
 589 file.
 590
 591 This file will now be removed from the modified
 592 files list, to prevent possible confusion.
 593 "
 594         if {[catch {exec git update-index -- $path} err]} {
 595                 error_popup "Failed to refresh index:\n\n$err"
 596         }
 597
 598         clear_diff
 599         display_file $path __
 600 }
 601
 602 proc show_diff {path w {lno {}}} {
 603         global file_states file_lists
 604         global is_3way_diff diff_active repo_config
 605         global ui_diff ui_status_value ui_index ui_workdir
 606         global current_diff_path current_diff_side
 607
 608         if {$diff_active || ![lock_index read]} return
 609
 610         clear_diff
 611         if {$w eq {} || $lno == {}} {
 612                 foreach w [array names file_lists] {
 613                         set lno [lsearch -sorted $file_lists($w) $path]
 614                         if {$lno >= 0} {
 615                                 incr lno
 616                                 break
 617                         }
 618                 }
 619         }
 620         if {$w ne {} && $lno >= 1} {
 621                 $w tag add in_diff $lno.0 [expr {$lno + 1}].0
 622         }
 623
 624         set s $file_states($path)
 625         set m [lindex $s 0]
 626         set is_3way_diff 0
 627         set diff_active 1
 628         set current_diff_path $path
 629         set current_diff_side $w
 630         set ui_status_value "Loading diff of [escape_path $path]..."
 631
 632         # - Git won't give us the diff, there's nothing to compare to!
 633         #
 634         if {$m eq {_O}} {
 635                 if {[catch {
 636                                 set fd [open $path r]
 637                                 set content [read $fd]
 638                                 close $fd
 639                         } err ]} {
 640                         set diff_active 0
 641                         unlock_index
 642                         set ui_status_value "Unable to display [escape_path $path]"
 643                         error_popup "Error loading file:\n\n$err"
 644                         return
 645                 }
 646                 $ui_diff conf -state normal
 647                 $ui_diff insert end $content
 648                 $ui_diff conf -state disabled
 649                 set diff_active 0
 650                 unlock_index
 651                 set ui_status_value {Ready.}
 652                 return
 653         }
 654
 655         set cmd [list | git]
 656         if {$w eq $ui_index} {
 657                 lappend cmd diff-index
 658                 lappend cmd --cached
 659         } elseif {$w eq $ui_workdir} {
 660                 if {[string index $m 0] eq {U}} {
 661                         lappend cmd diff
 662                 } else {
 663                         lappend cmd diff-files
 664                 }
 665         }
 666
 667         lappend cmd -p
 668         lappend cmd --no-color
 669         if {$repo_config(gui.diffcontext) > 0} {
 670                 lappend cmd "-U$repo_config(gui.diffcontext)"
 671         }
 672         if {$w eq $ui_index} {
 673                 lappend cmd [PARENT]
 674         }
 675         lappend cmd --
 676         lappend cmd $path
 677
 678         if {[catch {set fd [open $cmd r]} err]} {
 679                 set diff_active 0
 680                 unlock_index
 681                 set ui_status_value "Unable to display [escape_path $path]"
 682                 error_popup "Error loading diff:\n\n$err"
 683                 return
 684         }
 685
 686         fconfigure $fd -blocking 0 -translation auto
 687         fileevent $fd readable [list read_diff $fd]
 688 }
 689
 690 proc read_diff {fd} {
 691         global ui_diff ui_status_value is_3way_diff diff_active
 692         global repo_config
 693
 694         $ui_diff conf -state normal
 695         while {[gets $fd line] >= 0} {
 696                 # -- Cleanup uninteresting diff header lines.
 697                 #
 698                 if {[string match {diff --git *}      $line]} continue
 699                 if {[string match {diff --cc *}       $line]} continue
 700                 if {[string match {diff --combined *} $line]} continue
 701                 if {[string match {--- *}             $line]} continue
 702                 if {[string match {+++ *}             $line]} continue
 703                 if {$line eq {deleted file mode 120000}} {
 704                         set line "deleted symlink"
 705                 }
 706
 707                 # -- Automatically detect if this is a 3 way diff.
 708                 #
 709                 if {[string match {@@@ *} $line]} {set is_3way_diff 1}
 710
 711                 if {[string match {index *} $line]
 712                         || [regexp {^\* Unmerged path } $line]} {
 713                         set tags {}
 714                 } elseif {$is_3way_diff} {
 715                         set op [string range $line 0 1]
 716                         switch -- $op {
 717                         {  } {set tags {}}
 718                         {@@} {set tags d_@}
 719                         { +} {set tags d_s+}
 720                         { -} {set tags d_s-}
 721                         {+ } {set tags d_+s}
 722                         {- } {set tags d_-s}
 723                         {--} {set tags d_--}
 724                         {++} {
 725                                 if {[regexp {^\+\+([<>]{7} |={7})} $line _g op]} {
 726                                         set line [string replace $line 0 1 {  }]
 727                                         set tags d$op
 728                                 } else {
 729                                         set tags d_++
 730                                 }
 731                         }
 732                         default {
 733                                 puts "error: Unhandled 3 way diff marker: {$op}"
 734                                 set tags {}
 735                         }
 736                         }
 737                 } else {
 738                         set op [string index $line 0]
 739                         switch -- $op {
 740                         { } {set tags {}}
 741                         {@} {set tags d_@}
 742                         {-} {set tags d_-}
 743                         {+} {
 744                                 if {[regexp {^\+([<>]{7} |={7})} $line _g op]} {
 745                                         set line [string replace $line 0 0 { }]
 746                                         set tags d$op
 747                                 } else {
 748                                         set tags d_+
 749                                 }
 750                         }
 751                         default {
 752                                 puts "error: Unhandled 2 way diff marker: {$op}"
 753                                 set tags {}
 754                         }
 755                         }
 756                 }
 757                 $ui_diff insert end $line $tags
 758                 $ui_diff insert end "\n" $tags
 759         }
 760         $ui_diff conf -state disabled
 761
 762         if {[eof $fd]} {
 763                 close $fd
 764                 set diff_active 0
 765                 unlock_index
 766                 set ui_status_value {Ready.}
 767
 768                 if {$repo_config(gui.trustmtime) eq {true}
 769                         && [$ui_diff index end] eq {2.0}} {
 770                         handle_empty_diff
 771                 }
 772         }
 773 }
 774
 775 ######################################################################
 776 ##
 777 ## commit
 778
 779 proc load_last_commit {} {
 780         global HEAD PARENT MERGE_HEAD commit_type ui_comm
 781
 782         if {[llength $PARENT] == 0} {
 783                 error_popup {There is nothing to amend.
 784
 785 You are about to create the initial commit.
 786 There is no commit before this to amend.
 787 }
 788                 return
 789         }
 790
 791         repository_state curType curHEAD curMERGE_HEAD
 792         if {$curType eq {merge}} {
 793                 error_popup {Cannot amend while merging.
 794
 795 You are currently in the middle of a merge that
 796 has not been fully completed.  You cannot amend
 797 the prior commit unless you first abort the
 798 current merge activity.
 799 }
 800                 return
 801         }
 802
 803         set msg {}
 804         set parents [list]
 805         if {[catch {
 806                         set fd [open "| git cat-file commit $curHEAD" r]
 807                         while {[gets $fd line] > 0} {
 808                                 if {[string match {parent *} $line]} {
 809                                         lappend parents [string range $line 7 end]
 810                                 }
 811                         }
 812                         set msg [string trim [read $fd]]
 813                         close $fd
 814                 } err]} {
 815                 error_popup "Error loading commit data for amend:\n\n$err"
 816                 return
 817         }
 818
 819         set HEAD $curHEAD
 820         set PARENT $parents
 821         set MERGE_HEAD [list]
 822         switch -- [llength $parents] {
 823         0       {set commit_type amend-initial}
 824         1       {set commit_type amend}
 825         default {set commit_type amend-merge}
 826         }
 827
 828         $ui_comm delete 0.0 end
 829         $ui_comm insert end $msg
 830         $ui_comm edit reset
 831         $ui_comm edit modified false
 832         rescan {set ui_status_value {Ready.}}
 833 }
 834
 835 proc create_new_commit {} {
 836         global commit_type ui_comm
 837
 838         set commit_type normal
 839         $ui_comm delete 0.0 end
 840         $ui_comm edit reset
 841         $ui_comm edit modified false
 842         rescan {set ui_status_value {Ready.}}
 843 }
 844
 845 set GIT_COMMITTER_IDENT {}
 846
 847 proc committer_ident {} {
 848         global GIT_COMMITTER_IDENT
 849
 850         if {$GIT_COMMITTER_IDENT eq {}} {
 851                 if {[catch {set me [exec git var GIT_COMMITTER_IDENT]} err]} {
 852                         error_popup "Unable to obtain your identity:\n\n$err"
 853                         return {}
 854                 }
 855                 if {![regexp {^(.*) [0-9]+ [-+0-9]+$} \
 856                         $me me GIT_COMMITTER_IDENT]} {
 857                         error_popup "Invalid GIT_COMMITTER_IDENT:\n\n$me"
 858                         return {}
 859                 }
 860         }
 861
 862         return $GIT_COMMITTER_IDENT
 863 }
 864
 865 proc commit_tree {} {
 866         global HEAD commit_type file_states ui_comm repo_config
 867         global ui_status_value pch_error
 868
 869         if {![lock_index update]} return
 870         if {[committer_ident] eq {}} return
 871
 872         # -- Our in memory state should match the repository.
 873         #
 874         repository_state curType curHEAD curMERGE_HEAD
 875         if {[string match amend* $commit_type]
 876                 && $curType eq {normal}
 877                 && $curHEAD eq $HEAD} {
 878         } elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
 879                 info_popup {Last scanned state does not match repository state.
 880
 881 Another Git program has modified this repository
 882 since the last scan.  A rescan must be performed
 883 before another commit can be created.
 884
 885 The rescan will be automatically started now.
 886 }
 887                 unlock_index
 888                 rescan {set ui_status_value {Ready.}}
 889                 return
 890         }
 891
 892         # -- At least one file should differ in the index.
 893         #
 894         set files_ready 0
 895         foreach path [array names file_states] {
 896                 switch -glob -- [lindex $file_states($path) 0] {
 897                 _? {continue}
 898                 A? -
 899                 D? -
 900                 M? {set files_ready 1}
 901                 U? {
 902                         error_popup "Unmerged files cannot be committed.
 903
 904 File [short_path $path] has merge conflicts.
 905 You must resolve them and add the file before committing.
 906 "
 907                         unlock_index
 908                         return
 909                 }
 910                 default {
 911                         error_popup "Unknown file state [lindex $s 0] detected.
 912
 913 File [short_path $path] cannot be committed by this program.
 914 "
 915                 }
 916                 }
 917         }
 918         if {!$files_ready} {
 919                 info_popup {No changes to commit.
 920
 921 You must add at least 1 file before you can commit.
 922 }
 923                 unlock_index
 924                 return
 925         }
 926
 927         # -- A message is required.
 928         #
 929         set msg [string trim [$ui_comm get 1.0 end]]
 930         if {$msg eq {}} {
 931                 error_popup {Please supply a commit message.
 932
 933 A good commit message has the following format:
 934
 935 - First line: Describe in one sentance what you did.
 936 - Second line: Blank
 937 - Remaining lines: Describe why this change is good.
 938 }
 939                 unlock_index
 940                 return
 941         }
 942
 943         # -- Run the pre-commit hook.
 944         #
 945         set pchook [gitdir hooks pre-commit]
 946
 947         # On Cygwin [file executable] might lie so we need to ask
 948         # the shell if the hook is executable.  Yes that's annoying.
 949         #
 950         if {[is_Windows] && [file isfile $pchook]} {
 951                 set pchook [list sh -c [concat \
 952                         "if test -x \"$pchook\";" \
 953                         "then exec \"$pchook\" 2>&1;" \
 954                         "fi"]]
 955         } elseif {[file executable $pchook]} {
 956                 set pchook [list $pchook |& cat]
 957         } else {
 958                 commit_writetree $curHEAD $msg
 959                 return
 960         }
 961
 962         set ui_status_value {Calling pre-commit hook...}
 963         set pch_error {}
 964         set fd_ph [open "| $pchook" r]
 965         fconfigure $fd_ph -blocking 0 -translation binary
 966         fileevent $fd_ph readable \
 967                 [list commit_prehook_wait $fd_ph $curHEAD $msg]
 968 }
 969
 970 proc commit_prehook_wait {fd_ph curHEAD msg} {
 971         global pch_error ui_status_value
 972
 973         append pch_error [read $fd_ph]
 974         fconfigure $fd_ph -blocking 1
 975         if {[eof $fd_ph]} {
 976                 if {[catch {close $fd_ph}]} {
 977                         set ui_status_value {Commit declined by pre-commit hook.}
 978                         hook_failed_popup pre-commit $pch_error
 979                         unlock_index
 980                 } else {
 981                         commit_writetree $curHEAD $msg
 982                 }
 983                 set pch_error {}
 984                 return
 985         }
 986         fconfigure $fd_ph -blocking 0
 987 }
 988
 989 proc commit_writetree {curHEAD msg} {
 990         global ui_status_value
 991
 992         set ui_status_value {Committing changes...}
 993         set fd_wt [open "| git write-tree" r]
 994         fileevent $fd_wt readable \
 995                 [list commit_committree $fd_wt $curHEAD $msg]
 996 }
 997
 998 proc commit_committree {fd_wt curHEAD msg} {
 999         global HEAD PARENT MERGE_HEAD commit_type
1000         global single_commit
1001         global ui_status_value ui_comm selected_commit_type
1002         global file_states selected_paths rescan_active
1003
1004         gets $fd_wt tree_id
1005         if {$tree_id eq {} || [catch {close $fd_wt} err]} {
1006                 error_popup "write-tree failed:\n\n$err"
1007                 set ui_status_value {Commit failed.}
1008                 unlock_index
1009                 return
1010         }
1011
1012         # -- Create the commit.
1013         #
1014         set cmd [list git commit-tree $tree_id]
1015         set parents [concat $PARENT $MERGE_HEAD]
1016         if {[llength $parents] > 0} {
1017                 foreach p $parents {
1018                         lappend cmd -p $p
1019                 }
1020         } else {
1021                 # git commit-tree writes to stderr during initial commit.
1022                 lappend cmd 2>/dev/null
1023         }
1024         lappend cmd << $msg
1025         if {[catch {set cmt_id [eval exec $cmd]} err]} {
1026                 error_popup "commit-tree failed:\n\n$err"
1027                 set ui_status_value {Commit failed.}
1028                 unlock_index
1029                 return
1030         }
1031
1032         # -- Update the HEAD ref.
1033         #
1034         set reflogm commit
1035         if {$commit_type ne {normal}} {
1036                 append reflogm " ($commit_type)"
1037         }
1038         set i [string first "\n" $msg]
1039         if {$i >= 0} {
1040                 append reflogm {: } [string range $msg 0 [expr {$i - 1}]]
1041         } else {
1042                 append reflogm {: } $msg
1043         }
1044         set cmd [list git update-ref -m $reflogm HEAD $cmt_id $curHEAD]
1045         if {[catch {eval exec $cmd} err]} {
1046                 error_popup "update-ref failed:\n\n$err"
1047                 set ui_status_value {Commit failed.}
1048                 unlock_index
1049                 return
1050         }
1051
1052         # -- Cleanup after ourselves.
1053         #
1054         catch {file delete [gitdir MERGE_HEAD]}
1055         catch {file delete [gitdir MERGE_MSG]}
1056         catch {file delete [gitdir SQUASH_MSG]}
1057         catch {file delete [gitdir GITGUI_MSG]}
1058
1059         # -- Let rerere do its thing.
1060         #
1061         if {[file isdirectory [gitdir rr-cache]]} {
1062                 catch {exec git rerere}
1063         }
1064
1065         # -- Run the post-commit hook.
1066         #
1067         set pchook [gitdir hooks post-commit]
1068         if {[is_Windows] && [file isfile $pchook]} {
1069                 set pchook [list sh -c [concat \
1070                         "if test -x \"$pchook\";" \
1071                         "then exec \"$pchook\";" \
1072                         "fi"]]
1073         } elseif {![file executable $pchook]} {
1074                 set pchook {}
1075         }
1076         if {$pchook ne {}} {
1077                 catch {exec $pchook &}
1078         }
1079
1080         $ui_comm delete 0.0 end
1081         $ui_comm edit reset
1082         $ui_comm edit modified false
1083
1084         if {$single_commit} do_quit
1085
1086         # -- Update in memory status
1087         #
1088         set selected_commit_type new
1089         set commit_type normal
1090         set HEAD $cmt_id
1091         set PARENT $cmt_id
1092         set MERGE_HEAD [list]
1093
1094         foreach path [array names file_states] {
1095                 set s $file_states($path)
1096                 set m [lindex $s 0]
1097                 switch -glob -- $m {
1098                 _O -
1099                 _M -
1100                 _D {continue}
1101                 __ -
1102                 A_ -
1103                 M_ -
1104                 D_ {
1105                         unset file_states($path)
1106                         catch {unset selected_paths($path)}
1107                 }
1108                 DO {
1109                         set file_states($path) [list _O [lindex $s 1] {} {}]
1110                 }
1111                 AM -
1112                 AD -
1113                 MM -
1114                 MD {
1115                         set file_states($path) [list \
1116                                 _[string index $m 1] \
1117                                 [lindex $s 1] \
1118                                 [lindex $s 3] \
1119                                 {}]
1120                 }
1121                 }
1122         }
1123
1124         display_all_files
1125         unlock_index
1126         reshow_diff
1127         set ui_status_value \
1128                 "Changes committed as [string range $cmt_id 0 7]."
1129 }
1130
1131 ######################################################################
1132 ##
1133 ## fetch pull push
1134
1135 proc fetch_from {remote} {
1136         set w [new_console "fetch $remote" \
1137                 "Fetching new changes from $remote"]
1138         set cmd [list git fetch]
1139         lappend cmd $remote
1140         console_exec $w $cmd
1141 }
1142
1143 proc pull_remote {remote branch} {
1144         global HEAD commit_type file_states repo_config
1145
1146         if {![lock_index update]} return
1147
1148         # -- Our in memory state should match the repository.
1149         #
1150         repository_state curType curHEAD curMERGE_HEAD
1151         if {$commit_type ne $curType || $HEAD ne $curHEAD} {
1152                 info_popup {Last scanned state does not match repository state.
1153
1154 Another Git program has modified this repository
1155 since the last scan.  A rescan must be performed
1156 before a pull operation can be started.
1157
1158 The rescan will be automatically started now.
1159 }
1160                 unlock_index
1161                 rescan {set ui_status_value {Ready.}}
1162                 return
1163         }
1164
1165         # -- No differences should exist before a pull.
1166         #
1167         if {[array size file_states] != 0} {
1168                 error_popup {Uncommitted but modified files are present.
1169
1170 You should not perform a pull with unmodified
1171 files in your working directory as Git will be
1172 unable to recover from an incorrect merge.
1173
1174 You should commit or revert all changes before
1175 starting a pull operation.
1176 }
1177                 unlock_index
1178                 return
1179         }
1180
1181         set w [new_console "pull $remote $branch" \
1182                 "Pulling new changes from branch $branch in $remote"]
1183         set cmd [list git pull]
1184         if {$repo_config(gui.pullsummary) eq {false}} {
1185                 lappend cmd --no-summary
1186         }
1187         lappend cmd $remote
1188         lappend cmd $branch
1189         console_exec $w $cmd [list post_pull_remote $remote $branch]
1190 }
1191
1192 proc post_pull_remote {remote branch success} {
1193         global HEAD PARENT MERGE_HEAD commit_type selected_commit_type
1194         global ui_status_value
1195
1196         unlock_index
1197         if {$success} {
1198                 repository_state commit_type HEAD MERGE_HEAD
1199                 set PARENT $HEAD
1200                 set selected_commit_type new
1201                 set ui_status_value "Pulling $branch from $remote complete."
1202         } else {
1203                 rescan [list set ui_status_value \
1204                         "Conflicts detected while pulling $branch from $remote."]
1205         }
1206 }
1207
1208 proc push_to {remote} {
1209         set w [new_console "push $remote" \
1210                 "Pushing changes to $remote"]
1211         set cmd [list git push]
1212         lappend cmd $remote
1213         console_exec $w $cmd
1214 }
1215
1216 ######################################################################
1217 ##
1218 ## ui helpers
1219
1220 proc mapicon {w state path} {
1221         global all_icons
1222
1223         if {[catch {set r $all_icons($state$w)}]} {
1224                 puts "error: no icon for $w state={$state} $path"
1225                 return file_plain
1226         }
1227         return $r
1228 }
1229
1230 proc mapdesc {state path} {
1231         global all_descs
1232
1233         if {[catch {set r $all_descs($state)}]} {
1234                 puts "error: no desc for state={$state} $path"
1235                 return $state
1236         }
1237         return $r
1238 }
1239
1240 proc escape_path {path} {
1241         regsub -all "\n" $path "\\n" path
1242         return $path
1243 }
1244
1245 proc short_path {path} {
1246         return [escape_path [lindex [file split $path] end]]
1247 }
1248
1249 set next_icon_id 0
1250 set null_sha1 [string repeat 0 40]
1251
1252 proc merge_state {path new_state {head_info {}} {index_info {}}} {
1253         global file_states next_icon_id null_sha1
1254
1255         set s0 [string index $new_state 0]
1256         set s1 [string index $new_state 1]
1257
1258         if {[catch {set info $file_states($path)}]} {
1259                 set state __
1260                 set icon n[incr next_icon_id]
1261         } else {
1262                 set state [lindex $info 0]
1263                 set icon [lindex $info 1]
1264                 if {$head_info eq {}}  {set head_info  [lindex $info 2]}
1265                 if {$index_info eq {}} {set index_info [lindex $info 3]}
1266         }
1267
1268         if     {$s0 eq {?}} {set s0 [string index $state 0]} \
1269         elseif {$s0 eq {_}} {set s0 _}
1270
1271         if     {$s1 eq {?}} {set s1 [string index $state 1]} \
1272         elseif {$s1 eq {_}} {set s1 _}
1273
1274         if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
1275                 set head_info [list 0 $null_sha1]
1276         } elseif {$s0 ne {_} && [string index $state 0] eq {_}
1277                 && $head_info eq {}} {
1278                 set head_info $index_info
1279         }
1280
1281         set file_states($path) [list $s0$s1 $icon \
1282                 $head_info $index_info \
1283                 ]
1284         return $state
1285 }
1286
1287 proc display_file_helper {w path icon_name old_m new_m} {
1288         global file_lists
1289
1290         if {$new_m eq {_}} {
1291                 set lno [lsearch -sorted $file_lists($w) $path]
1292                 if {$lno >= 0} {
1293                         set file_lists($w) [lreplace $file_lists($w) $lno $lno]
1294                         incr lno
1295                         $w conf -state normal
1296                         $w delete $lno.0 [expr {$lno + 1}].0
1297                         $w conf -state disabled
1298                 }
1299         } elseif {$old_m eq {_} && $new_m ne {_}} {
1300                 lappend file_lists($w) $path
1301                 set file_lists($w) [lsort -unique $file_lists($w)]
1302                 set lno [lsearch -sorted $file_lists($w) $path]
1303                 incr lno
1304                 $w conf -state normal
1305                 $w image create $lno.0 \
1306                         -align center -padx 5 -pady 1 \
1307                         -name $icon_name \
1308                         -image [mapicon $w $new_m $path]
1309                 $w insert $lno.1 "[escape_path $path]\n"
1310                 $w conf -state disabled
1311         } elseif {$old_m ne $new_m} {
1312                 $w conf -state normal
1313                 $w image conf $icon_name -image [mapicon $w $new_m $path]
1314                 $w conf -state disabled
1315         }
1316 }
1317
1318 proc display_file {path state} {
1319         global file_states selected_paths
1320         global ui_index ui_workdir
1321
1322         set old_m [merge_state $path $state]
1323         set s $file_states($path)
1324         set new_m [lindex $s 0]
1325         set icon_name [lindex $s 1]
1326
1327         set o [string index $old_m 0]
1328         set n [string index $new_m 0]
1329         if {$o eq {U}} {
1330                 set o _
1331         }
1332         if {$n eq {U}} {
1333                 set n _
1334         }
1335         display_file_helper     $ui_index $path $icon_name $o $n
1336
1337         if {[string index $old_m 0] eq {U}} {
1338                 set o U
1339         } else {
1340                 set o [string index $old_m 1]
1341         }
1342         if {[string index $new_m 0] eq {U}} {
1343                 set n U
1344         } else {
1345                 set n [string index $new_m 1]
1346         }
1347         display_file_helper     $ui_workdir $path $icon_name $o $n
1348
1349         if {$new_m eq {__}} {
1350                 unset file_states($path)
1351                 catch {unset selected_paths($path)}
1352         }
1353 }
1354
1355 proc display_all_files_helper {w path icon_name m} {
1356         global file_lists
1357
1358         lappend file_lists($w) $path
1359         set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
1360         $w image create end \
1361                 -align center -padx 5 -pady 1 \
1362                 -name $icon_name \
1363                 -image [mapicon $w $m $path]
1364         $w insert end "[escape_path $path]\n"
1365 }
1366
1367 proc display_all_files {} {
1368         global ui_index ui_workdir
1369         global file_states file_lists
1370         global last_clicked
1371
1372         $ui_index conf -state normal
1373         $ui_workdir conf -state normal
1374
1375         $ui_index delete 0.0 end
1376         $ui_workdir delete 0.0 end
1377         set last_clicked {}
1378
1379         set file_lists($ui_index) [list]
1380         set file_lists($ui_workdir) [list]
1381
1382         foreach path [lsort [array names file_states]] {
1383                 set s $file_states($path)
1384                 set m [lindex $s 0]
1385                 set icon_name [lindex $s 1]
1386
1387                 set s [string index $m 0]
1388                 if {$s ne {U} && $s ne {_}} {
1389                         display_all_files_helper $ui_index $path \
1390                                 $icon_name $s
1391                 }
1392
1393                 if {[string index $m 0] eq {U}} {
1394                         set s U
1395                 } else {
1396                         set s [string index $m 1]
1397                 }
1398                 if {$s ne {_}} {
1399                         display_all_files_helper $ui_workdir $path \
1400                                 $icon_name $s
1401                 }
1402         }
1403
1404         $ui_index conf -state disabled
1405         $ui_workdir conf -state disabled
1406 }
1407
1408 proc update_indexinfo {msg pathList after} {
1409         global update_index_cp ui_status_value
1410
1411         if {![lock_index update]} return
1412
1413         set update_index_cp 0
1414         set pathList [lsort $pathList]
1415         set totalCnt [llength $pathList]
1416         set batch [expr {int($totalCnt * .01) + 1}]
1417         if {$batch > 25} {set batch 25}
1418
1419         set ui_status_value [format \
1420                 "$msg... %i/%i files (%.2f%%)" \
1421                 $update_index_cp \
1422                 $totalCnt \
1423                 0.0]
1424         set fd [open "| git update-index -z --index-info" w]
1425         fconfigure $fd \
1426                 -blocking 0 \
1427                 -buffering full \
1428                 -buffersize 512 \
1429                 -translation binary
1430         fileevent $fd writable [list \
1431                 write_update_indexinfo \
1432                 $fd \
1433                 $pathList \
1434                 $totalCnt \
1435                 $batch \
1436                 $msg \
1437                 $after \
1438                 ]
1439 }
1440
1441 proc write_update_indexinfo {fd pathList totalCnt batch msg after} {
1442         global update_index_cp ui_status_value
1443         global file_states current_diff_path
1444
1445         if {$update_index_cp >= $totalCnt} {
1446                 close $fd
1447                 unlock_index
1448                 uplevel #0 $after
1449                 return
1450         }
1451
1452         for {set i $batch} \
1453                 {$update_index_cp < $totalCnt && $i > 0} \
1454                 {incr i -1} {
1455                 set path [lindex $pathList $update_index_cp]
1456                 incr update_index_cp
1457
1458                 set s $file_states($path)
1459                 switch -glob -- [lindex $s 0] {
1460                 A? {set new _O}
1461                 M? {set new _M}
1462                 D_ {set new _D}
1463                 D? {set new _?}
1464                 ?? {continue}
1465                 }
1466                 set info [lindex $s 2]
1467                 if {$info eq {}} continue
1468
1469                 puts -nonewline $fd "$info\t$path\0"
1470                 display_file $path $new
1471         }
1472
1473         set ui_status_value [format \
1474                 "$msg... %i/%i files (%.2f%%)" \
1475                 $update_index_cp \
1476                 $totalCnt \
1477                 [expr {100.0 * $update_index_cp / $totalCnt}]]
1478 }
1479
1480 proc update_index {msg pathList after} {
1481         global update_index_cp ui_status_value
1482
1483         if {![lock_index update]} return
1484
1485         set update_index_cp 0
1486         set pathList [lsort $pathList]
1487         set totalCnt [llength $pathList]
1488         set batch [expr {int($totalCnt * .01) + 1}]
1489         if {$batch > 25} {set batch 25}
1490
1491         set ui_status_value [format \
1492                 "$msg... %i/%i files (%.2f%%)" \
1493                 $update_index_cp \
1494                 $totalCnt \
1495                 0.0]
1496         set fd [open "| git update-index --add --remove -z --stdin" w]
1497         fconfigure $fd \
1498                 -blocking 0 \
1499                 -buffering full \
1500                 -buffersize 512 \
1501                 -translation binary
1502         fileevent $fd writable [list \
1503                 write_update_index \
1504                 $fd \
1505                 $pathList \
1506                 $totalCnt \
1507                 $batch \
1508                 $msg \
1509                 $after \
1510                 ]
1511 }
1512
1513 proc write_update_index {fd pathList totalCnt batch msg after} {
1514         global update_index_cp ui_status_value
1515         global file_states current_diff_path
1516
1517         if {$update_index_cp >= $totalCnt} {
1518                 close $fd
1519                 unlock_index
1520                 uplevel #0 $after
1521                 return
1522         }
1523
1524         for {set i $batch} \
1525                 {$update_index_cp < $totalCnt && $i > 0} \
1526                 {incr i -1} {
1527                 set path [lindex $pathList $update_index_cp]
1528                 incr update_index_cp
1529
1530                 switch -glob -- [lindex $file_states($path) 0] {
1531                 AD {set new __}
1532                 ?D {set new D_}
1533                 _O -
1534                 AM {set new A_}
1535                 U? {
1536                         if {[file exists $path]} {
1537                                 set new M_
1538                         } else {
1539                                 set new D_
1540                         }
1541                 }
1542                 ?M {set new M_}
1543                 ?? {continue}
1544                 }
1545                 puts -nonewline $fd "$path\0"
1546                 display_file $path $new
1547         }
1548
1549         set ui_status_value [format \
1550                 "$msg... %i/%i files (%.2f%%)" \
1551                 $update_index_cp \
1552                 $totalCnt \
1553                 [expr {100.0 * $update_index_cp / $totalCnt}]]
1554 }
1555
1556 proc checkout_index {msg pathList after} {
1557         global update_index_cp ui_status_value
1558
1559         if {![lock_index update]} return
1560
1561         set update_index_cp 0
1562         set pathList [lsort $pathList]
1563         set totalCnt [llength $pathList]
1564         set batch [expr {int($totalCnt * .01) + 1}]
1565         if {$batch > 25} {set batch 25}
1566
1567         set ui_status_value [format \
1568                 "$msg... %i/%i files (%.2f%%)" \
1569                 $update_index_cp \
1570                 $totalCnt \
1571                 0.0]
1572         set cmd [list git checkout-index]
1573         lappend cmd --index
1574         lappend cmd --quiet
1575         lappend cmd --force
1576         lappend cmd -z
1577         lappend cmd --stdin
1578         set fd [open "| $cmd " w]
1579         fconfigure $fd \
1580                 -blocking 0 \
1581                 -buffering full \
1582                 -buffersize 512 \
1583                 -translation binary
1584         fileevent $fd writable [list \
1585                 write_checkout_index \
1586                 $fd \
1587                 $pathList \
1588                 $totalCnt \
1589                 $batch \
1590                 $msg \
1591                 $after \
1592                 ]
1593 }
1594
1595 proc write_checkout_index {fd pathList totalCnt batch msg after} {
1596         global update_index_cp ui_status_value
1597         global file_states current_diff_path
1598
1599         if {$update_index_cp >= $totalCnt} {
1600                 close $fd
1601                 unlock_index
1602                 uplevel #0 $after
1603                 return
1604         }
1605
1606         for {set i $batch} \
1607                 {$update_index_cp < $totalCnt && $i > 0} \
1608                 {incr i -1} {
1609                 set path [lindex $pathList $update_index_cp]
1610                 incr update_index_cp
1611                 switch -glob -- [lindex $file_states($path) 0] {
1612                 U? {continue}
1613                 ?M -
1614                 ?D {
1615                         puts -nonewline $fd "$path\0"
1616                         display_file $path ?_
1617                 }
1618                 }
1619         }
1620
1621         set ui_status_value [format \
1622                 "$msg... %i/%i files (%.2f%%)" \
1623                 $update_index_cp \
1624                 $totalCnt \
1625                 [expr {100.0 * $update_index_cp / $totalCnt}]]
1626 }
1627
1628 ######################################################################
1629 ##
1630 ## branch management
1631
1632 proc load_all_heads {} {
1633         global all_heads tracking_branches
1634
1635         set all_heads [list]
1636         set cmd [list git for-each-ref]
1637         lappend cmd --format=%(refname)
1638         lappend cmd refs/heads
1639         set fd [open "| $cmd" r]
1640         while {[gets $fd line] > 0} {
1641                 if {![catch {set info $tracking_branches($line)}]} continue
1642                 if {![regsub ^refs/heads/ $line {} name]} continue
1643                 lappend all_heads $name
1644         }
1645         close $fd
1646
1647         set all_heads [lsort $all_heads]
1648 }
1649
1650 proc populate_branch_menu {} {
1651         global all_heads disable_on_lock
1652
1653         set m .mbar.branch
1654         set last [$m index last]
1655         for {set i 0} {$i <= $last} {incr i} {
1656                 if {[$m type $i] eq {separator}} {
1657                         $m delete $i last
1658                         set new_dol [list]
1659                         foreach a $disable_on_lock {
1660                                 if {[lindex $a 0] ne $m || [lindex $a 2] < $i} {
1661                                         lappend new_dol $a
1662                                 }
1663                         }
1664                         set disable_on_lock $new_dol
1665                         break
1666                 }
1667         }
1668
1669         $m add separator
1670         foreach b $all_heads {
1671                 $m add radiobutton \
1672                         -label $b \
1673                         -command [list switch_branch $b] \
1674                         -variable current_branch \
1675                         -value $b \
1676                         -font font_ui
1677                 lappend disable_on_lock \
1678                         [list $m entryconf [$m index last] -state]
1679         }
1680 }
1681
1682 proc do_create_branch_action {w} {
1683         global all_heads null_sha1
1684         global create_branch_checkout create_branch_revtype
1685         global create_branch_head create_branch_trackinghead
1686
1687         set newbranch [string trim [$w.desc.name_t get 0.0 end]]
1688         if {![catch {exec git show-ref --verify -- "refs/heads/$newbranch"}]} {
1689                 tk_messageBox \
1690                         -icon error \
1691                         -type ok \
1692                         -title [wm title $w] \
1693                         -parent $w \
1694                         -message "Branch '$newbranch' already exists."
1695                 focus $w.desc.name_t
1696                 return
1697         }
1698         if {[catch {exec git check-ref-format "heads/$newbranch"}]} {
1699                 tk_messageBox \
1700                         -icon error \
1701                         -type ok \
1702                         -title [wm title $w] \
1703                         -parent $w \
1704                         -message "We do not like '$newbranch' as a branch name."
1705                 focus $w.desc.name_t
1706                 return
1707         }
1708
1709         set rev {}
1710         switch -- $create_branch_revtype {
1711         head {set rev $create_branch_head}
1712         tracking {set rev $create_branch_trackinghead}
1713         expression {set rev [string trim [$w.from.exp_t get 0.0 end]]}
1714         }
1715         if {[catch {set cmt [exec git rev-parse --verify "${rev}^0"]}]} {
1716                 tk_messageBox \
1717                         -icon error \
1718                         -type ok \
1719                         -title [wm title $w] \
1720                         -parent $w \
1721                         -message "Invalid starting revision: $rev"
1722                 return
1723         }
1724         set cmd [list git update-ref]
1725         lappend cmd -m
1726         lappend cmd "branch: Created from $rev"
1727         lappend cmd "refs/heads/$newbranch"
1728         lappend cmd $cmt
1729         lappend cmd $null_sha1
1730         if {[catch {eval exec $cmd} err]} {
1731                 tk_messageBox \
1732                         -icon error \
1733                         -type ok \
1734                         -title [wm title $w] \
1735                         -parent $w \
1736                         -message "Failed to create '$newbranch'.\n\n$err"
1737                 return
1738         }
1739
1740         lappend all_heads $newbranch
1741         set all_heads [lsort $all_heads]
1742         populate_branch_menu
1743         destroy $w
1744         if {$create_branch_checkout} {
1745                 switch_branch $newbranch
1746         }
1747 }
1748
1749 proc do_create_branch {} {
1750         global all_heads current_branch tracking_branches
1751         global create_branch_checkout create_branch_revtype
1752         global create_branch_head create_branch_trackinghead
1753
1754         set create_branch_checkout 1
1755         set create_branch_revtype head
1756         set create_branch_head $current_branch
1757         set create_branch_trackinghead {}
1758
1759         set w .branch_editor
1760         toplevel $w
1761         wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
1762
1763         label $w.header -text {Create New Branch} \
1764                 -font font_uibold
1765         pack $w.header -side top -fill x
1766
1767         frame $w.buttons
1768         button $w.buttons.create -text Create \
1769                 -font font_ui \
1770                 -default active \
1771                 -command [list do_create_branch_action $w]
1772         pack $w.buttons.create -side right
1773         button $w.buttons.cancel -text {Cancel} \
1774                 -font font_ui \
1775                 -command [list destroy $w]
1776         pack $w.buttons.cancel -side right -padx 5
1777         pack $w.buttons -side bottom -fill x -pady 10 -padx 10
1778
1779         labelframe $w.desc \
1780                 -text {Branch Description} \
1781                 -font font_ui
1782         label $w.desc.name_l -text {Name:} -font font_ui
1783         text $w.desc.name_t \
1784                 -borderwidth 1 \
1785                 -relief sunken \
1786                 -height 1 \
1787                 -width 40 \
1788                 -font font_ui
1789         grid $w.desc.name_l $w.desc.name_t -stick we -padx {0 5}
1790         bind $w.desc.name_t <Shift-Key-Tab> "focus $w.postActions.checkout;break"
1791         bind $w.desc.name_t <Key-Tab> "focus $w.from.exp_t;break"
1792         bind $w.desc.name_t <Key-Return> "do_create_branch_action $w;break"
1793         bind $w.desc.name_t <Key> {
1794                 if {{%K} ne {BackSpace}
1795                         && {%K} ne {Tab}
1796                         && {%K} ne {Escape}
1797                         && {%K} ne {Return}} {
1798                         if {%k <= 32} break
1799                         if {[string first %A {~^:?*[}] >= 0} break
1800                 }
1801         }
1802         grid columnconfigure $w.desc 1 -weight 1
1803         pack $w.desc -anchor nw -fill x -pady 5 -padx 5
1804
1805         set all_trackings [list]
1806         foreach b [array names tracking_branches] {
1807                 regsub ^refs/(heads|remotes)/ $b {} b
1808                 lappend all_trackings $b
1809         }
1810         set all_trackings [lsort -unique $all_trackings]
1811         if {$all_trackings ne {}} {
1812                 set create_branch_trackinghead [lindex $all_trackings 0]
1813         }
1814
1815         labelframe $w.from \
1816                 -text {Starting Revision} \
1817                 -font font_ui
1818         radiobutton $w.from.head_r \
1819                 -text {Local Branch:} \
1820                 -value head \
1821                 -variable create_branch_revtype \
1822                 -font font_ui
1823         eval tk_optionMenu $w.from.head_m create_branch_head $all_heads
1824         grid $w.from.head_r $w.from.head_m -sticky w
1825         radiobutton $w.from.tracking_r \
1826                 -text {Tracking Branch:} \
1827                 -value tracking \
1828                 -variable create_branch_revtype \
1829                 -font font_ui
1830         eval tk_optionMenu $w.from.tracking_m \
1831                 create_branch_trackinghead \
1832                 $all_trackings
1833         grid $w.from.tracking_r $w.from.tracking_m -sticky w
1834         radiobutton $w.from.exp_r \
1835                 -text {Revision Expression:} \
1836                 -value expression \
1837                 -variable create_branch_revtype \
1838                 -font font_ui
1839         text $w.from.exp_t \
1840                 -borderwidth 1 \
1841                 -relief sunken \
1842                 -height 1 \
1843                 -width 50 \
1844                 -font font_ui
1845         grid $w.from.exp_r $w.from.exp_t -stick we -padx {0 5}
1846         bind $w.from.exp_t <Shift-Key-Tab> "focus $w.desc.name_t;break"
1847         bind $w.from.exp_t <Key-Tab> "focus $w.postActions.checkout;break"
1848         bind $w.from.exp_t <Key-Return> "do_create_branch_action $w;break"
1849         grid columnconfigure $w.from 1 -weight 1
1850         pack $w.from -anchor nw -fill x -pady 5 -padx 5
1851
1852         labelframe $w.postActions \
1853                 -text {Post Creation Actions} \
1854                 -font font_ui
1855         checkbutton $w.postActions.checkout \
1856                 -text {Checkout after creation} \
1857                 -variable create_branch_checkout \
1858                 -font font_ui
1859         pack $w.postActions.checkout -anchor nw
1860         pack $w.postActions -anchor nw -fill x -pady 5 -padx 5
1861
1862         bind $w <Visibility> "grab $w; focus $w.desc.name_t"
1863         bind $w <Key-Escape> "destroy $w"
1864         bind $w <Key-Return> "do_create_branch_action $w;break"
1865         wm title $w "[appname] ([reponame]): Create Branch"
1866         tkwait window $w
1867 }
1868
1869 proc do_delete_branch_action {w} {
1870         global all_heads
1871         global delete_branch_checktype delete_branch_head delete_branch_trackinghead
1872
1873         set check_rev {}
1874         switch -- $delete_branch_checktype {
1875         head {set check_rev $delete_branch_head}
1876         tracking {set check_rev $delete_branch_trackinghead}
1877         always {set check_rev {:none}}
1878         }
1879         if {$check_rev eq {:none}} {
1880                 set check_cmt {}
1881         } elseif {[catch {set check_cmt [exec git rev-parse --verify "${check_rev}^0"]}]} {
1882                 tk_messageBox \
1883                         -icon error \
1884                         -type ok \
1885                         -title [wm title $w] \
1886                         -parent $w \
1887                         -message "Invalid check revision: $check_rev"
1888                 return
1889         }
1890
1891         set to_delete [list]
1892         set not_merged [list]
1893         foreach i [$w.list.l curselection] {
1894                 set b [$w.list.l get $i]
1895                 if {[catch {set o [exec git rev-parse --verify $b]}]} continue
1896                 if {$check_cmt ne {}} {
1897                         if {$b eq $check_rev} continue
1898                         if {[catch {set m [exec git merge-base $o $check_cmt]}]} continue
1899                         if {$o ne $m} {
1900                                 lappend not_merged $b
1901                                 continue
1902                         }
1903                 }
1904                 lappend to_delete [list $b $o]
1905         }
1906         if {$not_merged ne {}} {
1907                 set msg "The following branches are not completely merged into $check_rev:
1908
1909  - [join $not_merged "\n - "]"
1910                 tk_messageBox \
1911                         -icon info \
1912                         -type ok \
1913                         -title [wm title $w] \
1914                         -parent $w \
1915                         -message $msg
1916         }
1917         if {$to_delete eq {}} return
1918         if {$delete_branch_checktype eq {always}} {
1919                 set msg {Recovering deleted branches is difficult.
1920
1921 Delete the selected branches?}
1922                 if {[tk_messageBox \
1923                         -icon warning \
1924                         -type yesno \
1925                         -title [wm title $w] \
1926                         -parent $w \
1927                         -message $msg] ne yes} {
1928                         return
1929                 }
1930         }
1931
1932         set failed {}
1933         foreach i $to_delete {
1934                 set b [lindex $i 0]
1935                 set o [lindex $i 1]
1936                 if {[catch {exec git update-ref -d "refs/heads/$b" $o} err]} {
1937                         append failed " - $b: $err\n"
1938                 } else {
1939                         set x [lsearch -sorted $all_heads $b]
1940                         if {$x >= 0} {
1941                                 set all_heads [lreplace $all_heads $x $x]
1942                         }
1943                 }
1944         }
1945
1946         if {$failed ne {}} {
1947                 tk_messageBox \
1948                         -icon error \
1949                         -type ok \
1950                         -title [wm title $w] \
1951                         -parent $w \
1952                         -message "Failed to delete branches:\n$failed"
1953         }
1954
1955         set all_heads [lsort $all_heads]
1956         populate_branch_menu
1957         destroy $w
1958 }
1959
1960 proc do_delete_branch {} {
1961         global all_heads tracking_branches current_branch
1962         global delete_branch_checktype delete_branch_head delete_branch_trackinghead
1963
1964         set delete_branch_checktype head
1965         set delete_branch_head $current_branch
1966         set delete_branch_trackinghead {}
1967
1968         set w .branch_editor
1969         toplevel $w
1970         wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
1971
1972         label $w.header -text {Delete Local Branch} \
1973                 -font font_uibold
1974         pack $w.header -side top -fill x
1975
1976         frame $w.buttons
1977         button $w.buttons.create -text Delete \
1978                 -font font_ui \
1979                 -command [list do_delete_branch_action $w]
1980         pack $w.buttons.create -side right
1981         button $w.buttons.cancel -text {Cancel} \
1982                 -font font_ui \
1983                 -command [list destroy $w]
1984         pack $w.buttons.cancel -side right -padx 5
1985         pack $w.buttons -side bottom -fill x -pady 10 -padx 10
1986
1987         labelframe $w.list \
1988                 -text {Local Branches} \
1989                 -font font_ui
1990         listbox $w.list.l \
1991                 -height 10 \
1992                 -width 50 \
1993                 -selectmode extended \
1994                 -font font_ui
1995         foreach h $all_heads {
1996                 if {$h ne $current_branch} {
1997                         $w.list.l insert end $h
1998                 }
1999         }
2000         pack $w.list.l -fill both -pady 5 -padx 5
2001         pack $w.list -fill both -pady 5 -padx 5
2002
2003         set all_trackings [list]
2004         foreach b [array names tracking_branches] {
2005                 regsub ^refs/(heads|remotes)/ $b {} b
2006                 lappend all_trackings $b
2007         }
2008         set all_trackings [lsort -unique $all_trackings]
2009         if {$all_trackings ne {} && $delete_branch_trackinghead eq {}} {
2010                 set delete_branch_trackinghead [lindex $all_trackings 0]
2011         }
2012
2013         labelframe $w.validate \
2014                 -text {Delete Only If} \
2015                 -font font_ui
2016         radiobutton $w.validate.head_r \
2017                 -text {Merged Into Local Branch:} \
2018                 -value head \
2019                 -variable delete_branch_checktype \
2020                 -font font_ui
2021         eval tk_optionMenu $w.validate.head_m delete_branch_head $all_heads
2022         grid $w.validate.head_r $w.validate.head_m -sticky w
2023         radiobutton $w.validate.tracking_r \
2024                 -text {Merged Into Tracking Branch:} \
2025                 -value tracking \
2026                 -variable delete_branch_checktype \
2027                 -font font_ui
2028         eval tk_optionMenu $w.validate.tracking_m \
2029                 delete_branch_trackinghead \
2030                 $all_trackings
2031         grid $w.validate.tracking_r $w.validate.tracking_m -sticky w
2032         radiobutton $w.validate.always_r \
2033                 -text {Always (Do not perform merge checks)} \
2034                 -value always \
2035                 -variable delete_branch_checktype \
2036                 -font font_ui
2037         grid $w.validate.always_r -columnspan 2 -sticky w
2038         grid columnconfigure $w.validate 1 -weight 1
2039         pack $w.validate -anchor nw -fill x -pady 5 -padx 5
2040
2041         bind $w <Visibility> "grab $w; focus $w"
2042         bind $w <Key-Escape> "destroy $w"
2043         wm title $w "[appname] ([reponame]): Delete Branch"
2044         tkwait window $w
2045 }
2046
2047 proc switch_branch {b} {
2048         global HEAD commit_type file_states current_branch
2049         global selected_commit_type ui_comm
2050
2051         if {![lock_index switch]} return
2052
2053         # -- Backup the selected branch (repository_state resets it)
2054         #
2055         set new_branch $current_branch
2056
2057         # -- Our in memory state should match the repository.
2058         #
2059         repository_state curType curHEAD curMERGE_HEAD
2060         if {[string match amend* $commit_type]
2061                 && $curType eq {normal}
2062                 && $curHEAD eq $HEAD} {
2063         } elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
2064                 info_popup {Last scanned state does not match repository state.
2065
2066 Another Git program has modified this repository
2067 since the last scan.  A rescan must be performed
2068 before the current branch can be changed.
2069
2070 The rescan will be automatically started now.
2071 }
2072                 unlock_index
2073                 rescan {set ui_status_value {Ready.}}
2074                 return
2075         }
2076
2077         # -- Toss the message buffer if we are in amend mode.
2078         #
2079         if {[string match amend* $curType]} {
2080                 $ui_comm delete 0.0 end
2081                 $ui_comm edit reset
2082                 $ui_comm edit modified false
2083         }
2084
2085         set selected_commit_type new
2086         set current_branch $new_branch
2087
2088         unlock_index
2089         error "NOT FINISHED"
2090 }
2091
2092 ######################################################################
2093 ##
2094 ## remote management
2095
2096 proc load_all_remotes {} {
2097         global repo_config
2098         global all_remotes tracking_branches
2099
2100         set all_remotes [list]
2101         array unset tracking_branches
2102
2103         set rm_dir [gitdir remotes]
2104         if {[file isdirectory $rm_dir]} {
2105                 set all_remotes [glob \
2106                         -types f \
2107                         -tails \
2108                         -nocomplain \
2109                         -directory $rm_dir *]
2110
2111                 foreach name $all_remotes {
2112                         catch {
2113                                 set fd [open [file join $rm_dir $name] r]
2114                                 while {[gets $fd line] >= 0} {
2115                                         if {![regexp {^Pull:[   ]*([^:]+):(.+)$} \
2116                                                 $line line src dst]} continue
2117                                         if {![regexp ^refs/ $dst]} {
2118                                                 set dst "refs/heads/$dst"
2119                                         }
2120                                         set tracking_branches($dst) [list $name $src]
2121                                 }
2122                                 close $fd
2123                         }
2124                 }
2125         }
2126
2127         foreach line [array names repo_config remote.*.url] {
2128                 if {![regexp ^remote\.(.*)\.url\$ $line line name]} continue
2129                 lappend all_remotes $name
2130
2131                 if {[catch {set fl $repo_config(remote.$name.fetch)}]} {
2132                         set fl {}
2133                 }
2134                 foreach line $fl {
2135                         if {![regexp {^([^:]+):(.+)$} $line line src dst]} continue
2136                         if {![regexp ^refs/ $dst]} {
2137                                 set dst "refs/heads/$dst"
2138                         }
2139                         set tracking_branches($dst) [list $name $src]
2140                 }
2141         }
2142
2143         set all_remotes [lsort -unique $all_remotes]
2144 }
2145
2146 proc populate_fetch_menu {m} {
2147         global all_remotes repo_config
2148
2149         foreach r $all_remotes {
2150                 set enable 0
2151                 if {![catch {set a $repo_config(remote.$r.url)}]} {
2152                         if {![catch {set a $repo_config(remote.$r.fetch)}]} {
2153                                 set enable 1
2154                         }
2155                 } else {
2156                         catch {
2157                                 set fd [open [gitdir remotes $r] r]
2158                                 while {[gets $fd n] >= 0} {
2159                                         if {[regexp {^Pull:[ \t]*([^:]+):} $n]} {
2160                                                 set enable 1
2161                                                 break
2162                                         }
2163                                 }
2164                                 close $fd
2165                         }
2166                 }
2167
2168                 if {$enable} {
2169                         $m add command \
2170                                 -label "Fetch from $r..." \
2171                                 -command [list fetch_from $r] \
2172                                 -font font_ui
2173                 }
2174         }
2175 }
2176
2177 proc populate_push_menu {m} {
2178         global all_remotes repo_config
2179
2180         foreach r $all_remotes {
2181                 set enable 0
2182                 if {![catch {set a $repo_config(remote.$r.url)}]} {
2183                         if {![catch {set a $repo_config(remote.$r.push)}]} {
2184                                 set enable 1
2185                         }
2186                 } else {
2187                         catch {
2188                                 set fd [open [gitdir remotes $r] r]
2189                                 while {[gets $fd n] >= 0} {
2190                                         if {[regexp {^Push:[ \t]*([^:]+):} $n]} {
2191                                                 set enable 1
2192                                                 break
2193                                         }
2194                                 }
2195                                 close $fd
2196                         }
2197                 }
2198
2199                 if {$enable} {
2200                         $m add command \
2201                                 -label "Push to $r..." \
2202                                 -command [list push_to $r] \
2203                                 -font font_ui
2204                 }
2205         }
2206 }
2207
2208 proc populate_pull_menu {m} {
2209         global repo_config all_remotes disable_on_lock
2210
2211         foreach remote $all_remotes {
2212                 set rb_list [list]
2213                 if {[array get repo_config remote.$remote.url] ne {}} {
2214                         if {[array get repo_config remote.$remote.fetch] ne {}} {
2215                                 foreach line $repo_config(remote.$remote.fetch) {
2216                                         if {[regexp {^([^:]+):} $line line rb]} {
2217                                                 lappend rb_list $rb
2218                                         }
2219                                 }
2220                         }
2221                 } else {
2222                         catch {
2223                                 set fd [open [gitdir remotes $remote] r]
2224                                 while {[gets $fd line] >= 0} {
2225                                         if {[regexp {^Pull:[ \t]*([^:]+):} $line line rb]} {
2226                                                 lappend rb_list $rb
2227                                         }
2228                                 }
2229                                 close $fd
2230                         }
2231                 }
2232
2233                 foreach rb $rb_list {
2234                         regsub ^refs/heads/ $rb {} rb_short
2235                         $m add command \
2236                                 -label "Branch $rb_short from $remote..." \
2237                                 -command [list pull_remote $remote $rb] \
2238                                 -font font_ui
2239                         lappend disable_on_lock \
2240                                 [list $m entryconf [$m index last] -state]
2241                 }
2242         }
2243 }
2244
2245 ######################################################################
2246 ##
2247 ## icons
2248
2249 set filemask {
2250 #define mask_width 14
2251 #define mask_height 15
2252 static unsigned char mask_bits[] = {
2253    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
2254    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
2255    0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
2256 }
2257
2258 image create bitmap file_plain -background white -foreground black -data {
2259 #define plain_width 14
2260 #define plain_height 15
2261 static unsigned char plain_bits[] = {
2262    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
2263    0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
2264    0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2265 } -maskdata $filemask
2266
2267 image create bitmap file_mod -background white -foreground blue -data {
2268 #define mod_width 14
2269 #define mod_height 15
2270 static unsigned char mod_bits[] = {
2271    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
2272    0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
2273    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
2274 } -maskdata $filemask
2275
2276 image create bitmap file_fulltick -background white -foreground "#007000" -data {
2277 #define file_fulltick_width 14
2278 #define file_fulltick_height 15
2279 static unsigned char file_fulltick_bits[] = {
2280    0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
2281    0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
2282    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2283 } -maskdata $filemask
2284
2285 image create bitmap file_parttick -background white -foreground "#005050" -data {
2286 #define parttick_width 14
2287 #define parttick_height 15
2288 static unsigned char parttick_bits[] = {
2289    0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
2290    0x7a, 0x14, 0x02, 0x16, 0x02, 0x13, 0x8a, 0x11, 0xda, 0x10, 0x72, 0x10,
2291    0x22, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2292 } -maskdata $filemask
2293
2294 image create bitmap file_question -background white -foreground black -data {
2295 #define file_question_width 14
2296 #define file_question_height 15
2297 static unsigned char file_question_bits[] = {
2298    0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
2299    0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
2300    0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
2301 } -maskdata $filemask
2302
2303 image create bitmap file_removed -background white -foreground red -data {
2304 #define file_removed_width 14
2305 #define file_removed_height 15
2306 static unsigned char file_removed_bits[] = {
2307    0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
2308    0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
2309    0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
2310 } -maskdata $filemask
2311
2312 image create bitmap file_merge -background white -foreground blue -data {
2313 #define file_merge_width 14
2314 #define file_merge_height 15
2315 static unsigned char file_merge_bits[] = {
2316    0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
2317    0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
2318    0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
2319 } -maskdata $filemask
2320
2321 set ui_index .vpane.files.index.list
2322 set ui_workdir .vpane.files.workdir.list
2323
2324 set all_icons(_$ui_index)   file_plain
2325 set all_icons(A$ui_index)   file_fulltick
2326 set all_icons(M$ui_index)   file_fulltick
2327 set all_icons(D$ui_index)   file_removed
2328 set all_icons(U$ui_index)   file_merge
2329
2330 set all_icons(_$ui_workdir) file_plain
2331 set all_icons(M$ui_workdir) file_mod
2332 set all_icons(D$ui_workdir) file_question
2333 set all_icons(U$ui_workdir) file_merge
2334 set all_icons(O$ui_workdir) file_plain
2335
2336 set max_status_desc 0
2337 foreach i {
2338                 {__ "Unmodified"}
2339
2340                 {_M "Modified, not staged"}
2341                 {M_ "Staged for commit"}
2342                 {MM "Portions staged for commit"}
2343                 {MD "Staged for commit, missing"}
2344
2345                 {_O "Untracked, not staged"}
2346                 {A_ "Staged for commit"}
2347                 {AM "Portions staged for commit"}
2348                 {AD "Staged for commit, missing"}
2349
2350                 {_D "Missing"}
2351                 {D_ "Staged for removal"}
2352                 {DO "Staged for removal, still present"}
2353
2354                 {U_ "Requires merge resolution"}
2355                 {UU "Requires merge resolution"}
2356                 {UM "Requires merge resolution"}
2357                 {UD "Requires merge resolution"}
2358         } {
2359         if {$max_status_desc < [string length [lindex $i 1]]} {
2360                 set max_status_desc [string length [lindex $i 1]]
2361         }
2362         set all_descs([lindex $i 0]) [lindex $i 1]
2363 }
2364 unset i
2365
2366 ######################################################################
2367 ##
2368 ## util
2369
2370 proc is_MacOSX {} {
2371         global tcl_platform tk_library
2372         if {[tk windowingsystem] eq {aqua}} {
2373                 return 1
2374         }
2375         return 0
2376 }
2377
2378 proc is_Windows {} {
2379         global tcl_platform
2380         if {$tcl_platform(platform) eq {windows}} {
2381                 return 1
2382         }
2383         return 0
2384 }
2385
2386 proc bind_button3 {w cmd} {
2387         bind $w <Any-Button-3> $cmd
2388         if {[is_MacOSX]} {
2389                 bind $w <Control-Button-1> $cmd
2390         }
2391 }
2392
2393 proc incr_font_size {font {amt 1}} {
2394         set sz [font configure $font -size]
2395         incr sz $amt
2396         font configure $font -size $sz
2397         font configure ${font}bold -size $sz
2398 }
2399
2400 proc hook_failed_popup {hook msg} {
2401         set w .hookfail
2402         toplevel $w
2403
2404         frame $w.m
2405         label $w.m.l1 -text "$hook hook failed:" \
2406                 -anchor w \
2407                 -justify left \
2408                 -font font_uibold
2409         text $w.m.t \
2410                 -background white -borderwidth 1 \
2411                 -relief sunken \
2412                 -width 80 -height 10 \
2413                 -font font_diff \
2414                 -yscrollcommand [list $w.m.sby set]
2415         label $w.m.l2 \
2416                 -text {You must correct the above errors before committing.} \
2417                 -anchor w \
2418                 -justify left \
2419                 -font font_uibold
2420         scrollbar $w.m.sby -command [list $w.m.t yview]
2421         pack $w.m.l1 -side top -fill x
2422         pack $w.m.l2 -side bottom -fill x
2423         pack $w.m.sby -side right -fill y
2424         pack $w.m.t -side left -fill both -expand 1
2425         pack $w.m -side top -fill both -expand 1 -padx 5 -pady 10
2426
2427         $w.m.t insert 1.0 $msg
2428         $w.m.t conf -state disabled
2429
2430         button $w.ok -text OK \
2431                 -width 15 \
2432                 -font font_ui \
2433                 -command "destroy $w"
2434         pack $w.ok -side bottom -anchor e -pady 10 -padx 10
2435
2436         bind $w <Visibility> "grab $w; focus $w"
2437         bind $w <Key-Return> "destroy $w"
2438         wm title $w "[appname] ([reponame]): error"
2439         tkwait window $w
2440 }
2441
2442 set next_console_id 0
2443
2444 proc new_console {short_title long_title} {
2445         global next_console_id console_data
2446         set w .console[incr next_console_id]
2447         set console_data($w) [list $short_title $long_title]
2448         return [console_init $w]
2449 }
2450
2451 proc console_init {w} {
2452         global console_cr console_data M1B
2453
2454         set console_cr($w) 1.0
2455         toplevel $w
2456         frame $w.m
2457         label $w.m.l1 -text "[lindex $console_data($w) 1]:" \
2458                 -anchor w \
2459                 -justify left \
2460                 -font font_uibold
2461         text $w.m.t \
2462                 -background white -borderwidth 1 \
2463                 -relief sunken \
2464                 -width 80 -height 10 \
2465                 -font font_diff \
2466                 -state disabled \
2467                 -yscrollcommand [list $w.m.sby set]
2468         label $w.m.s -text {Working... please wait...} \
2469                 -anchor w \
2470                 -justify left \
2471                 -font font_uibold
2472         scrollbar $w.m.sby -command [list $w.m.t yview]
2473         pack $w.m.l1 -side top -fill x
2474         pack $w.m.s -side bottom -fill x
2475         pack $w.m.sby -side right -fill y
2476         pack $w.m.t -side left -fill both -expand 1
2477         pack $w.m -side top -fill both -expand 1 -padx 5 -pady 10
2478
2479         menu $w.ctxm -tearoff 0
2480         $w.ctxm add command -label "Copy" \
2481                 -font font_ui \
2482                 -command "tk_textCopy $w.m.t"
2483         $w.ctxm add command -label "Select All" \
2484                 -font font_ui \
2485                 -command "$w.m.t tag add sel 0.0 end"
2486         $w.ctxm add command -label "Copy All" \
2487                 -font font_ui \
2488                 -command "
2489                         $w.m.t tag add sel 0.0 end
2490                         tk_textCopy $w.m.t
2491                         $w.m.t tag remove sel 0.0 end
2492                 "
2493
2494         button $w.ok -text {Close} \
2495                 -font font_ui \
2496                 -state disabled \
2497                 -command "destroy $w"
2498         pack $w.ok -side bottom -anchor e -pady 10 -padx 10
2499
2500         bind_button3 $w.m.t "tk_popup $w.ctxm %X %Y"
2501         bind $w.m.t <$M1B-Key-a> "$w.m.t tag add sel 0.0 end;break"
2502         bind $w.m.t <$M1B-Key-A> "$w.m.t tag add sel 0.0 end;break"
2503         bind $w <Visibility> "focus $w"
2504         wm title $w "[appname] ([reponame]): [lindex $console_data($w) 0]"
2505         return $w
2506 }
2507
2508 proc console_exec {w cmd {after {}}} {
2509         # -- Windows tosses the enviroment when we exec our child.
2510         #    But most users need that so we have to relogin. :-(
2511         #
2512         if {[is_Windows]} {
2513                 set cmd [list sh --login -c "cd \"[pwd]\" && [join $cmd { }]"]
2514         }
2515
2516         # -- Tcl won't let us redirect both stdout and stderr to
2517         #    the same pipe.  So pass it through cat...
2518         #
2519         set cmd [concat | $cmd |& cat]
2520
2521         set fd_f [open $cmd r]
2522         fconfigure $fd_f -blocking 0 -translation binary
2523         fileevent $fd_f readable [list console_read $w $fd_f $after]
2524 }
2525
2526 proc console_read {w fd after} {
2527         global console_cr console_data
2528
2529         set buf [read $fd]
2530         if {$buf ne {}} {
2531                 if {![winfo exists $w]} {console_init $w}
2532                 $w.m.t conf -state normal
2533                 set c 0
2534                 set n [string length $buf]
2535                 while {$c < $n} {
2536                         set cr [string first "\r" $buf $c]
2537                         set lf [string first "\n" $buf $c]
2538                         if {$cr < 0} {set cr [expr {$n + 1}]}
2539                         if {$lf < 0} {set lf [expr {$n + 1}]}
2540
2541                         if {$lf < $cr} {
2542                                 $w.m.t insert end [string range $buf $c $lf]
2543                                 set console_cr($w) [$w.m.t index {end -1c}]
2544                                 set c $lf
2545                                 incr c
2546                         } else {
2547                                 $w.m.t delete $console_cr($w) end
2548                                 $w.m.t insert end "\n"
2549                                 $w.m.t insert end [string range $buf $c $cr]
2550                                 set c $cr
2551                                 incr c
2552                         }
2553                 }
2554                 $w.m.t conf -state disabled
2555                 $w.m.t see end
2556         }
2557
2558         fconfigure $fd -blocking 1
2559         if {[eof $fd]} {
2560                 if {[catch {close $fd}]} {
2561                         if {![winfo exists $w]} {console_init $w}
2562                         $w.m.s conf -background red -text {Error: Command Failed}
2563                         $w.ok conf -state normal
2564                         set ok 0
2565                 } elseif {[winfo exists $w]} {
2566                         $w.m.s conf -background green -text {Success}
2567                         $w.ok conf -state normal
2568                         set ok 1
2569                 }
2570                 array unset console_cr $w
2571                 array unset console_data $w
2572                 if {$after ne {}} {
2573                         uplevel #0 $after $ok
2574                 }
2575                 return
2576         }
2577         fconfigure $fd -blocking 0
2578 }
2579
2580 ######################################################################
2581 ##
2582 ## ui commands
2583
2584 set starting_gitk_msg {Starting gitk... please wait...}
2585
2586 proc do_gitk {revs} {
2587         global ui_status_value starting_gitk_msg
2588
2589         set cmd gitk
2590         if {$revs ne {}} {
2591                 append cmd { }
2592                 append cmd $revs
2593         }
2594         if {[is_Windows]} {
2595                 set cmd "sh -c \"exec $cmd\""
2596         }
2597         append cmd { &}
2598
2599         if {[catch {eval exec $cmd} err]} {
2600                 error_popup "Failed to start gitk:\n\n$err"
2601         } else {
2602                 set ui_status_value $starting_gitk_msg
2603                 after 10000 {
2604                         if {$ui_status_value eq $starting_gitk_msg} {
2605                                 set ui_status_value {Ready.}
2606                         }
2607                 }
2608         }
2609 }
2610
2611 proc do_gc {} {
2612         set w [new_console {gc} {Compressing the object database}]
2613         console_exec $w {git gc}
2614 }
2615
2616 proc do_fsck_objects {} {
2617         set w [new_console {fsck-objects} \
2618                 {Verifying the object database with fsck-objects}]
2619         set cmd [list git fsck-objects]
2620         lappend cmd --full
2621         lappend cmd --cache
2622         lappend cmd --strict
2623         console_exec $w $cmd
2624 }
2625
2626 set is_quitting 0
2627
2628 proc do_quit {} {
2629         global ui_comm is_quitting repo_config commit_type
2630
2631         if {$is_quitting} return
2632         set is_quitting 1
2633
2634         # -- Stash our current commit buffer.
2635         #
2636         set save [gitdir GITGUI_MSG]
2637         set msg [string trim [$ui_comm get 0.0 end]]
2638         if {![string match amend* $commit_type]
2639                 && [$ui_comm edit modified]
2640                 && $msg ne {}} {
2641                 catch {
2642                         set fd [open $save w]
2643                         puts $fd [string trim [$ui_comm get 0.0 end]]
2644                         close $fd
2645                 }
2646         } else {
2647                 catch {file delete $save}
2648         }
2649
2650         # -- Stash our current window geometry into this repository.
2651         #
2652         set cfg_geometry [list]
2653         lappend cfg_geometry [wm geometry .]
2654         lappend cfg_geometry [lindex [.vpane sash coord 0] 1]
2655         lappend cfg_geometry [lindex [.vpane.files sash coord 0] 0]
2656         if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
2657                 set rc_geometry {}
2658         }
2659         if {$cfg_geometry ne $rc_geometry} {
2660                 catch {exec git repo-config gui.geometry $cfg_geometry}
2661         }
2662
2663         destroy .
2664 }
2665
2666 proc do_rescan {} {
2667         rescan {set ui_status_value {Ready.}}
2668 }
2669
2670 proc unstage_helper {txt paths} {
2671         global file_states current_diff_path
2672
2673         if {![lock_index begin-update]} return
2674
2675         set pathList [list]
2676         set after {}
2677         foreach path $paths {
2678                 switch -glob -- [lindex $file_states($path) 0] {
2679                 A? -
2680                 M? -
2681                 D? {
2682                         lappend pathList $path
2683                         if {$path eq $current_diff_path} {
2684                                 set after {reshow_diff;}
2685                         }
2686                 }
2687                 }
2688         }
2689         if {$pathList eq {}} {
2690                 unlock_index
2691         } else {
2692                 update_indexinfo \
2693                         $txt \
2694                         $pathList \
2695                         [concat $after {set ui_status_value {Ready.}}]
2696         }
2697 }
2698
2699 proc do_unstage_selection {} {
2700         global current_diff_path selected_paths
2701
2702         if {[array size selected_paths] > 0} {
2703                 unstage_helper \
2704                         {Unstaging selected files from commit} \
2705                         [array names selected_paths]
2706         } elseif {$current_diff_path ne {}} {
2707                 unstage_helper \
2708                         "Unstaging [short_path $current_diff_path] from commit" \
2709                         [list $current_diff_path]
2710         }
2711 }
2712
2713 proc add_helper {txt paths} {
2714         global file_states current_diff_path
2715
2716         if {![lock_index begin-update]} return
2717
2718         set pathList [list]
2719         set after {}
2720         foreach path $paths {
2721                 switch -glob -- [lindex $file_states($path) 0] {
2722                 _O -
2723                 ?M -
2724                 ?D -
2725                 U? {
2726                         lappend pathList $path
2727                         if {$path eq $current_diff_path} {
2728                                 set after {reshow_diff;}
2729                         }
2730                 }
2731                 }
2732         }
2733         if {$pathList eq {}} {
2734                 unlock_index
2735         } else {
2736                 update_index \
2737                         $txt \
2738                         $pathList \
2739                         [concat $after {set ui_status_value {Ready to commit.}}]
2740         }
2741 }
2742
2743 proc do_add_selection {} {
2744         global current_diff_path selected_paths
2745
2746         if {[array size selected_paths] > 0} {
2747                 add_helper \
2748                         {Adding selected files} \
2749                         [array names selected_paths]
2750         } elseif {$current_diff_path ne {}} {
2751                 add_helper \
2752                         "Adding [short_path $current_diff_path]" \
2753                         [list $current_diff_path]
2754         }
2755 }
2756
2757 proc do_add_all {} {
2758         global file_states
2759
2760         set paths [list]
2761         foreach path [array names file_states] {
2762                 switch -glob -- [lindex $file_states($path) 0] {
2763                 U? {continue}
2764                 ?M -
2765                 ?D {lappend paths $path}
2766                 }
2767         }
2768         add_helper {Adding all changed files} $paths
2769 }
2770
2771 proc revert_helper {txt paths} {
2772         global file_states current_diff_path
2773
2774         if {![lock_index begin-update]} return
2775
2776         set pathList [list]
2777         set after {}
2778         foreach path $paths {
2779                 switch -glob -- [lindex $file_states($path) 0] {
2780                 U? {continue}
2781                 ?M -
2782                 ?D {
2783                         lappend pathList $path
2784                         if {$path eq $current_diff_path} {
2785                                 set after {reshow_diff;}
2786                         }
2787                 }
2788                 }
2789         }
2790
2791         set n [llength $pathList]
2792         if {$n == 0} {
2793                 unlock_index
2794                 return
2795         } elseif {$n == 1} {
2796                 set s "[short_path [lindex $pathList]]"
2797         } else {
2798                 set s "these $n files"
2799         }
2800
2801         set reply [tk_dialog \
2802                 .confirm_revert \
2803                 "[appname] ([reponame])" \
2804                 "Revert changes in $s?
2805
2806 Any unadded changes will be permanently lost by the revert." \
2807                 question \
2808                 1 \
2809                 {Do Nothing} \
2810                 {Revert Changes} \
2811                 ]
2812         if {$reply == 1} {
2813                 checkout_index \
2814                         $txt \
2815                         $pathList \
2816                         [concat $after {set ui_status_value {Ready.}}]
2817         } else {
2818                 unlock_index
2819         }
2820 }
2821
2822 proc do_revert_selection {} {
2823         global current_diff_path selected_paths
2824
2825         if {[array size selected_paths] > 0} {
2826                 revert_helper \
2827                         {Reverting selected files} \
2828                         [array names selected_paths]
2829         } elseif {$current_diff_path ne {}} {
2830                 revert_helper \
2831                         "Reverting [short_path $current_diff_path]" \
2832                         [list $current_diff_path]
2833         }
2834 }
2835
2836 proc do_signoff {} {
2837         global ui_comm
2838
2839         set me [committer_ident]
2840         if {$me eq {}} return
2841
2842         set sob "Signed-off-by: $me"
2843         set last [$ui_comm get {end -1c linestart} {end -1c}]
2844         if {$last ne $sob} {
2845                 $ui_comm edit separator
2846                 if {$last ne {}
2847                         && ![regexp {^[A-Z][A-Za-z]*-[A-Za-z-]+: *} $last]} {
2848                         $ui_comm insert end "\n"
2849                 }
2850                 $ui_comm insert end "\n$sob"
2851                 $ui_comm edit separator
2852                 $ui_comm see end
2853         }
2854 }
2855
2856 proc do_select_commit_type {} {
2857         global commit_type selected_commit_type
2858
2859         if {$selected_commit_type eq {new}
2860                 && [string match amend* $commit_type]} {
2861                 create_new_commit
2862         } elseif {$selected_commit_type eq {amend}
2863                 && ![string match amend* $commit_type]} {
2864                 load_last_commit
2865
2866                 # The amend request was rejected...
2867                 #
2868                 if {![string match amend* $commit_type]} {
2869                         set selected_commit_type new
2870                 }
2871         }
2872 }
2873
2874 proc do_commit {} {
2875         commit_tree
2876 }
2877
2878 proc do_about {} {
2879         global appvers copyright
2880         global tcl_patchLevel tk_patchLevel
2881
2882         set w .about_dialog
2883         toplevel $w
2884         wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
2885
2886         label $w.header -text "About [appname]" \
2887                 -font font_uibold
2888         pack $w.header -side top -fill x
2889
2890         frame $w.buttons
2891         button $w.buttons.close -text {Close} \
2892                 -font font_ui \
2893                 -command [list destroy $w]
2894         pack $w.buttons.close -side right
2895         pack $w.buttons -side bottom -fill x -pady 10 -padx 10
2896
2897         label $w.desc \
2898                 -text "[appname] - a commit creation tool for Git.
2899 $copyright" \
2900                 -padx 5 -pady 5 \
2901                 -justify left \
2902                 -anchor w \
2903                 -borderwidth 1 \
2904                 -relief solid \
2905                 -font font_ui
2906         pack $w.desc -side top -fill x -padx 5 -pady 5
2907
2908         set v {}
2909         append v "[appname] version $appvers\n"
2910         append v "[exec git version]\n"
2911         append v "\n"
2912         if {$tcl_patchLevel eq $tk_patchLevel} {
2913                 append v "Tcl/Tk version $tcl_patchLevel"
2914         } else {
2915                 append v "Tcl version $tcl_patchLevel"
2916                 append v ", Tk version $tk_patchLevel"
2917         }
2918
2919         label $w.vers \
2920                 -text $v \
2921                 -padx 5 -pady 5 \
2922                 -justify left \
2923                 -anchor w \
2924                 -borderwidth 1 \
2925                 -relief solid \
2926                 -font font_ui
2927         pack $w.vers -side top -fill x -padx 5 -pady 5
2928
2929         menu $w.ctxm -tearoff 0
2930         $w.ctxm add command \
2931                 -label {Copy} \
2932                 -font font_ui \
2933                 -command "
2934                 clipboard clear
2935                 clipboard append -format STRING -type STRING -- \[$w.vers cget -text\]
2936         "
2937
2938         bind $w <Visibility> "grab $w; focus $w"
2939         bind $w <Key-Escape> "destroy $w"
2940         bind_button3 $w.vers "tk_popup $w.ctxm %X %Y; grab $w; focus $w"
2941         wm title $w "About [appname]"
2942         tkwait window $w
2943 }
2944
2945 proc do_options {} {
2946         global repo_config global_config font_descs
2947         global repo_config_new global_config_new
2948
2949         array unset repo_config_new
2950         array unset global_config_new
2951         foreach name [array names repo_config] {
2952                 set repo_config_new($name) $repo_config($name)
2953         }
2954         load_config 1
2955         foreach name [array names repo_config] {
2956                 switch -- $name {
2957                 gui.diffcontext {continue}
2958                 }
2959                 set repo_config_new($name) $repo_config($name)
2960         }
2961         foreach name [array names global_config] {
2962                 set global_config_new($name) $global_config($name)
2963         }
2964
2965         set w .options_editor
2966         toplevel $w
2967         wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
2968
2969         label $w.header -text "[appname] Options" \
2970                 -font font_uibold
2971         pack $w.header -side top -fill x
2972
2973         frame $w.buttons
2974         button $w.buttons.restore -text {Restore Defaults} \
2975                 -font font_ui \
2976                 -command do_restore_defaults
2977         pack $w.buttons.restore -side left
2978         button $w.buttons.save -text Save \
2979                 -font font_ui \
2980                 -command [list do_save_config $w]
2981         pack $w.buttons.save -side right
2982         button $w.buttons.cancel -text {Cancel} \
2983                 -font font_ui \
2984                 -command [list destroy $w]
2985         pack $w.buttons.cancel -side right -padx 5
2986         pack $w.buttons -side bottom -fill x -pady 10 -padx 10
2987
2988         labelframe $w.repo -text "[reponame] Repository" \
2989                 -font font_ui \
2990                 -relief raised -borderwidth 2
2991         labelframe $w.global -text {Global (All Repositories)} \
2992                 -font font_ui \
2993                 -relief raised -borderwidth 2
2994         pack $w.repo -side left -fill both -expand 1 -pady 5 -padx 5
2995         pack $w.global -side right -fill both -expand 1 -pady 5 -padx 5
2996
2997         foreach option {
2998                 {b pullsummary {Show Pull Summary}}
2999                 {b trustmtime  {Trust File Modification Timestamps}}
3000                 {i diffcontext {Number of Diff Context Lines}}
3001                 } {
3002                 set type [lindex $option 0]
3003                 set name [lindex $option 1]
3004                 set text [lindex $option 2]
3005                 foreach f {repo global} {
3006                         switch $type {
3007                         b {
3008                                 checkbutton $w.$f.$name -text $text \
3009                                         -variable ${f}_config_new(gui.$name) \
3010                                         -onvalue true \
3011                                         -offvalue false \
3012                                         -font font_ui
3013                                 pack $w.$f.$name -side top -anchor w
3014                         }
3015                         i {
3016                                 frame $w.$f.$name
3017                                 label $w.$f.$name.l -text "$text:" -font font_ui
3018                                 pack $w.$f.$name.l -side left -anchor w -fill x
3019                                 spinbox $w.$f.$name.v \
3020                                         -textvariable ${f}_config_new(gui.$name) \
3021                                         -from 1 -to 99 -increment 1 \
3022                                         -width 3 \
3023                                         -font font_ui
3024                                 pack $w.$f.$name.v -side right -anchor e
3025                                 pack $w.$f.$name -side top -anchor w -fill x
3026                         }
3027                         }
3028                 }
3029         }
3030
3031         set all_fonts [lsort [font families]]
3032         foreach option $font_descs {
3033                 set name [lindex $option 0]
3034                 set font [lindex $option 1]
3035                 set text [lindex $option 2]
3036
3037                 set global_config_new(gui.$font^^family) \
3038                         [font configure $font -family]
3039                 set global_config_new(gui.$font^^size) \
3040                         [font configure $font -size]
3041
3042                 frame $w.global.$name
3043                 label $w.global.$name.l -text "$text:" -font font_ui
3044                 pack $w.global.$name.l -side left -anchor w -fill x
3045                 eval tk_optionMenu $w.global.$name.family \
3046                         global_config_new(gui.$font^^family) \
3047                         $all_fonts
3048                 spinbox $w.global.$name.size \
3049                         -textvariable global_config_new(gui.$font^^size) \
3050                         -from 2 -to 80 -increment 1 \
3051                         -width 3 \
3052                         -font font_ui
3053                 pack $w.global.$name.size -side right -anchor e
3054                 pack $w.global.$name.family -side right -anchor e
3055                 pack $w.global.$name -side top -anchor w -fill x
3056         }
3057
3058         bind $w <Visibility> "grab $w; focus $w"
3059         bind $w <Key-Escape> "destroy $w"
3060         wm title $w "[appname] ([reponame]): Options"
3061         tkwait window $w
3062 }
3063
3064 proc do_restore_defaults {} {
3065         global font_descs default_config repo_config
3066         global repo_config_new global_config_new
3067
3068         foreach name [array names default_config] {
3069                 set repo_config_new($name) $default_config($name)
3070                 set global_config_new($name) $default_config($name)
3071         }
3072
3073         foreach option $font_descs {
3074                 set name [lindex $option 0]
3075                 set repo_config(gui.$name) $default_config(gui.$name)
3076         }
3077         apply_config
3078
3079         foreach option $font_descs {
3080                 set name [lindex $option 0]
3081                 set font [lindex $option 1]
3082                 set global_config_new(gui.$font^^family) \
3083                         [font configure $font -family]
3084                 set global_config_new(gui.$font^^size) \
3085                         [font configure $font -size]
3086         }
3087 }
3088
3089 proc do_save_config {w} {
3090         if {[catch {save_config} err]} {
3091                 error_popup "Failed to completely save options:\n\n$err"
3092         }
3093         reshow_diff
3094         destroy $w
3095 }
3096
3097 proc do_windows_shortcut {} {
3098         global argv0
3099
3100         if {[catch {
3101                 set desktop [exec cygpath \
3102                         --windows \
3103                         --absolute \
3104                         --long-name \
3105                         --desktop]
3106                 }]} {
3107                         set desktop .
3108         }
3109         set fn [tk_getSaveFile \
3110                 -parent . \
3111                 -title "[appname] ([reponame]): Create Desktop Icon" \
3112                 -initialdir $desktop \
3113                 -initialfile "Git [reponame].bat"]
3114         if {$fn != {}} {
3115                 if {[catch {
3116                                 set fd [open $fn w]
3117                                 set sh [exec cygpath \
3118                                         --windows \
3119                                         --absolute \
3120                                         /bin/sh]
3121                                 set me [exec cygpath \
3122                                         --unix \
3123                                         --absolute \
3124                                         $argv0]
3125                                 set gd [exec cygpath \
3126                                         --unix \
3127                                         --absolute \
3128                                         [gitdir]]
3129                                 set gw [exec cygpath \
3130                                         --windows \
3131                                         --absolute \
3132                                         [file dirname [gitdir]]]
3133                                 regsub -all ' $me "'\\''" me
3134                                 regsub -all ' $gd "'\\''" gd
3135                                 puts $fd "@ECHO Entering $gw"
3136                                 puts $fd "@ECHO Starting git-gui... please wait..."
3137                                 puts -nonewline $fd "@\"$sh\" --login -c \""
3138                                 puts -nonewline $fd "GIT_DIR='$gd'"
3139                                 puts -nonewline $fd " '$me'"
3140                                 puts $fd "&\""
3141                                 close $fd
3142                         } err]} {
3143                         error_popup "Cannot write script:\n\n$err"
3144                 }
3145         }
3146 }
3147
3148 proc do_macosx_app {} {
3149         global argv0 env
3150
3151         set fn [tk_getSaveFile \
3152                 -parent . \
3153                 -title "[appname] ([reponame]): Create Desktop Icon" \
3154                 -initialdir [file join $env(HOME) Desktop] \
3155                 -initialfile "Git [reponame].app"]
3156         if {$fn != {}} {
3157                 if {[catch {
3158                                 set Contents [file join $fn Contents]
3159                                 set MacOS [file join $Contents MacOS]
3160                                 set exe [file join $MacOS git-gui]
3161
3162                                 file mkdir $MacOS
3163
3164                                 set fd [open [file join $Contents Info.plist] w]
3165                                 puts $fd {<?xml version="1.0" encoding="UTF-8"?>
3166 <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3167 <plist version="1.0">
3168 <dict>
3169         <key>CFBundleDevelopmentRegion</key>
3170         <string>English</string>
3171         <key>CFBundleExecutable</key>
3172         <string>git-gui</string>
3173         <key>CFBundleIdentifier</key>
3174         <string>org.spearce.git-gui</string>
3175         <key>CFBundleInfoDictionaryVersion</key>
3176         <string>6.0</string>
3177         <key>CFBundlePackageType</key>
3178         <string>APPL</string>
3179         <key>CFBundleSignature</key>
3180         <string>????</string>
3181         <key>CFBundleVersion</key>
3182         <string>1.0</string>
3183         <key>NSPrincipalClass</key>
3184         <string>NSApplication</string>
3185 </dict>
3186 </plist>}
3187                                 close $fd
3188
3189                                 set fd [open $exe w]
3190                                 set gd [file normalize [gitdir]]
3191                                 set ep [file normalize [exec git --exec-path]]
3192                                 regsub -all ' $gd "'\\''" gd
3193                                 regsub -all ' $ep "'\\''" ep
3194                                 puts $fd "#!/bin/sh"
3195                                 foreach name [array names env] {
3196                                         if {[string match GIT_* $name]} {
3197                                                 regsub -all ' $env($name) "'\\''" v
3198                                                 puts $fd "export $name='$v'"
3199                                         }
3200                                 }
3201                                 puts $fd "export PATH='$ep':\$PATH"
3202                                 puts $fd "export GIT_DIR='$gd'"
3203                                 puts $fd "exec [file normalize $argv0]"
3204                                 close $fd
3205
3206                                 file attributes $exe -permissions u+x,g+x,o+x
3207                         } err]} {
3208                         error_popup "Cannot write icon:\n\n$err"
3209                 }
3210         }
3211 }
3212
3213 proc toggle_or_diff {w x y} {
3214         global file_states file_lists current_diff_path ui_index ui_workdir
3215         global last_clicked selected_paths
3216
3217         set pos [split [$w index @$x,$y] .]
3218         set lno [lindex $pos 0]
3219         set col [lindex $pos 1]
3220         set path [lindex $file_lists($w) [expr {$lno - 1}]]
3221         if {$path eq {}} {
3222                 set last_clicked {}
3223                 return
3224         }
3225
3226         set last_clicked [list $w $lno]
3227         array unset selected_paths
3228         $ui_index tag remove in_sel 0.0 end
3229         $ui_workdir tag remove in_sel 0.0 end
3230
3231         if {$col == 0} {
3232                 if {$current_diff_path eq $path} {
3233                         set after {reshow_diff;}
3234                 } else {
3235                         set after {}
3236                 }
3237                 if {$w eq $ui_index} {
3238                         update_indexinfo \
3239                                 "Unstaging [short_path $path] from commit" \
3240                                 [list $path] \
3241                                 [concat $after {set ui_status_value {Ready.}}]
3242                 } elseif {$w eq $ui_workdir} {
3243                         update_index \
3244                                 "Adding [short_path $path]" \
3245                                 [list $path] \
3246                                 [concat $after {set ui_status_value {Ready.}}]
3247                 }
3248         } else {
3249                 show_diff $path $w $lno
3250         }
3251 }
3252
3253 proc add_one_to_selection {w x y} {
3254         global file_lists last_clicked selected_paths
3255
3256         set lno [lindex [split [$w index @$x,$y] .] 0]
3257         set path [lindex $file_lists($w) [expr {$lno - 1}]]
3258         if {$path eq {}} {
3259                 set last_clicked {}
3260                 return
3261         }
3262
3263         if {$last_clicked ne {}
3264                 && [lindex $last_clicked 0] ne $w} {
3265                 array unset selected_paths
3266                 [lindex $last_clicked 0] tag remove in_sel 0.0 end
3267         }
3268
3269         set last_clicked [list $w $lno]
3270         if {[catch {set in_sel $selected_paths($path)}]} {
3271                 set in_sel 0
3272         }
3273         if {$in_sel} {
3274                 unset selected_paths($path)
3275                 $w tag remove in_sel $lno.0 [expr {$lno + 1}].0
3276         } else {
3277                 set selected_paths($path) 1
3278                 $w tag add in_sel $lno.0 [expr {$lno + 1}].0
3279         }
3280 }
3281
3282 proc add_range_to_selection {w x y} {
3283         global file_lists last_clicked selected_paths
3284
3285         if {[lindex $last_clicked 0] ne $w} {
3286                 toggle_or_diff $w $x $y
3287                 return
3288         }
3289
3290         set lno [lindex [split [$w index @$x,$y] .] 0]
3291         set lc [lindex $last_clicked 1]
3292         if {$lc < $lno} {
3293                 set begin $lc
3294                 set end $lno
3295         } else {
3296                 set begin $lno
3297                 set end $lc
3298         }
3299
3300         foreach path [lrange $file_lists($w) \
3301                 [expr {$begin - 1}] \
3302                 [expr {$end - 1}]] {
3303                 set selected_paths($path) 1
3304         }
3305         $w tag add in_sel $begin.0 [expr {$end + 1}].0
3306 }
3307
3308 ######################################################################
3309 ##
3310 ## config defaults
3311
3312 set cursor_ptr arrow
3313 font create font_diff -family Courier -size 10
3314 font create font_ui
3315 catch {
3316         label .dummy
3317         eval font configure font_ui [font actual [.dummy cget -font]]
3318         destroy .dummy
3319 }
3320
3321 font create font_uibold
3322 font create font_diffbold
3323
3324 if {[is_Windows]} {
3325         set M1B Control
3326         set M1T Ctrl
3327 } elseif {[is_MacOSX]} {
3328         set M1B M1
3329         set M1T Cmd
3330 } else {
3331         set M1B M1
3332         set M1T M1
3333 }
3334
3335 proc apply_config {} {
3336         global repo_config font_descs
3337
3338         foreach option $font_descs {
3339                 set name [lindex $option 0]
3340                 set font [lindex $option 1]
3341                 if {[catch {
3342                         foreach {cn cv} $repo_config(gui.$name) {
3343                                 font configure $font $cn $cv
3344                         }
3345                         } err]} {
3346                         error_popup "Invalid font specified in gui.$name:\n\n$err"
3347                 }
3348                 foreach {cn cv} [font configure $font] {
3349                         font configure ${font}bold $cn $cv
3350                 }
3351                 font configure ${font}bold -weight bold
3352         }
3353 }
3354
3355 set default_config(gui.trustmtime) false
3356 set default_config(gui.pullsummary) true
3357 set default_config(gui.diffcontext) 5
3358 set default_config(gui.fontui) [font configure font_ui]
3359 set default_config(gui.fontdiff) [font configure font_diff]
3360 set font_descs {
3361         {fontui   font_ui   {Main Font}}
3362         {fontdiff font_diff {Diff/Console Font}}
3363 }
3364 load_config 0
3365 apply_config
3366
3367 ######################################################################
3368 ##
3369 ## ui construction
3370
3371 # -- Menu Bar
3372 #
3373 menu .mbar -tearoff 0
3374 .mbar add cascade -label Repository -menu .mbar.repository
3375 .mbar add cascade -label Edit -menu .mbar.edit
3376 if {!$single_commit} {
3377         .mbar add cascade -label Branch -menu .mbar.branch
3378 }
3379 .mbar add cascade -label Commit -menu .mbar.commit
3380 if {!$single_commit} {
3381         .mbar add cascade -label Fetch -menu .mbar.fetch
3382         .mbar add cascade -label Pull -menu .mbar.pull
3383         .mbar add cascade -label Push -menu .mbar.push
3384 }
3385 . configure -menu .mbar
3386
3387 # -- Repository Menu
3388 #
3389 menu .mbar.repository
3390 .mbar.repository add command \
3391         -label {Visualize Current Branch} \
3392         -command {do_gitk {}} \
3393         -font font_ui
3394 if {![is_MacOSX]} {
3395         .mbar.repository add command \
3396                 -label {Visualize All Branches} \
3397                 -command {do_gitk {--all}} \
3398                 -font font_ui
3399 }
3400 .mbar.repository add separator
3401
3402 if {!$single_commit} {
3403         .mbar.repository add command -label {Compress Database} \
3404                 -command do_gc \
3405                 -font font_ui
3406
3407         .mbar.repository add command -label {Verify Database} \
3408                 -command do_fsck_objects \
3409                 -font font_ui
3410
3411         .mbar.repository add separator
3412
3413         if {[is_Windows]} {
3414                 .mbar.repository add command \
3415                         -label {Create Desktop Icon} \
3416                         -command do_windows_shortcut \
3417                         -font font_ui
3418         } elseif {[is_MacOSX]} {
3419                 .mbar.repository add command \
3420                         -label {Create Desktop Icon} \
3421                         -command do_macosx_app \
3422                         -font font_ui
3423         }
3424 }
3425
3426 .mbar.repository add command -label Quit \
3427         -command do_quit \
3428         -accelerator $M1T-Q \
3429         -font font_ui
3430
3431 # -- Edit Menu
3432 #
3433 menu .mbar.edit
3434 .mbar.edit add command -label Undo \
3435         -command {catch {[focus] edit undo}} \
3436         -accelerator $M1T-Z \
3437         -font font_ui
3438 .mbar.edit add command -label Redo \
3439         -command {catch {[focus] edit redo}} \
3440         -accelerator $M1T-Y \
3441         -font font_ui
3442 .mbar.edit add separator
3443 .mbar.edit add command -label Cut \
3444         -command {catch {tk_textCut [focus]}} \
3445         -accelerator $M1T-X \
3446         -font font_ui
3447 .mbar.edit add command -label Copy \
3448         -command {catch {tk_textCopy [focus]}} \
3449         -accelerator $M1T-C \
3450         -font font_ui
3451 .mbar.edit add command -label Paste \
3452         -command {catch {tk_textPaste [focus]; [focus] see insert}} \
3453         -accelerator $M1T-V \
3454         -font font_ui
3455 .mbar.edit add command -label Delete \
3456         -command {catch {[focus] delete sel.first sel.last}} \
3457         -accelerator Del \
3458         -font font_ui
3459 .mbar.edit add separator
3460 .mbar.edit add command -label {Select All} \
3461         -command {catch {[focus] tag add sel 0.0 end}} \
3462         -accelerator $M1T-A \
3463         -font font_ui
3464
3465 # -- Branch Menu
3466 #
3467 if {!$single_commit} {
3468         menu .mbar.branch
3469
3470         .mbar.branch add command -label {Create...} \
3471                 -command do_create_branch \
3472                 -accelerator $M1T-N \
3473                 -font font_ui
3474         lappend disable_on_lock [list .mbar.branch entryconf \
3475                 [.mbar.branch index last] -state]
3476
3477         .mbar.branch add command -label {Delete...} \
3478                 -command do_delete_branch \
3479                 -font font_ui
3480         lappend disable_on_lock [list .mbar.branch entryconf \
3481                 [.mbar.branch index last] -state]
3482 }
3483
3484 # -- Commit Menu
3485 #
3486 menu .mbar.commit
3487
3488 .mbar.commit add radiobutton \
3489         -label {New Commit} \
3490         -command do_select_commit_type \
3491         -variable selected_commit_type \
3492         -value new \
3493         -font font_ui
3494 lappend disable_on_lock \
3495         [list .mbar.commit entryconf [.mbar.commit index last] -state]
3496
3497 .mbar.commit add radiobutton \
3498         -label {Amend Last Commit} \
3499         -command do_select_commit_type \
3500         -variable selected_commit_type \
3501         -value amend \
3502         -font font_ui
3503 lappend disable_on_lock \
3504         [list .mbar.commit entryconf [.mbar.commit index last] -state]
3505
3506 .mbar.commit add separator
3507
3508 .mbar.commit add command -label Rescan \
3509         -command do_rescan \
3510         -accelerator F5 \
3511         -font font_ui
3512 lappend disable_on_lock \
3513         [list .mbar.commit entryconf [.mbar.commit index last] -state]
3514
3515 .mbar.commit add command -label {Add To Commit} \
3516         -command do_add_selection \
3517         -font font_ui
3518 lappend disable_on_lock \
3519         [list .mbar.commit entryconf [.mbar.commit index last] -state]
3520
3521 .mbar.commit add command -label {Add All To Commit} \
3522         -command do_add_all \
3523         -accelerator $M1T-I \
3524         -font font_ui
3525 lappend disable_on_lock \
3526         [list .mbar.commit entryconf [.mbar.commit index last] -state]
3527
3528 .mbar.commit add command -label {Unstage From Commit} \
3529         -command do_unstage_selection \
3530         -font font_ui
3531 lappend disable_on_lock \
3532         [list .mbar.commit entryconf [.mbar.commit index last] -state]
3533
3534 .mbar.commit add command -label {Revert Changes} \
3535         -command do_revert_selection \
3536         -font font_ui
3537 lappend disable_on_lock \
3538         [list .mbar.commit entryconf [.mbar.commit index last] -state]
3539
3540 .mbar.commit add separator
3541
3542 .mbar.commit add command -label {Sign Off} \
3543         -command do_signoff \
3544         -accelerator $M1T-S \
3545         -font font_ui
3546
3547 .mbar.commit add command -label Commit \
3548         -command do_commit \
3549         -accelerator $M1T-Return \
3550         -font font_ui
3551 lappend disable_on_lock \
3552         [list .mbar.commit entryconf [.mbar.commit index last] -state]
3553
3554 # -- Transport menus
3555 #
3556 if {!$single_commit} {
3557         menu .mbar.fetch
3558         menu .mbar.pull
3559         menu .mbar.push
3560 }
3561
3562 if {[is_MacOSX]} {
3563         # -- Apple Menu (Mac OS X only)
3564         #
3565         .mbar add cascade -label Apple -menu .mbar.apple
3566         menu .mbar.apple
3567
3568         .mbar.apple add command -label "About [appname]" \
3569                 -command do_about \
3570                 -font font_ui
3571         .mbar.apple add command -label "[appname] Options..." \
3572                 -command do_options \
3573                 -font font_ui
3574 } else {
3575         # -- Edit Menu
3576         #
3577         .mbar.edit add separator
3578         .mbar.edit add command -label {Options...} \
3579                 -command do_options \
3580                 -font font_ui
3581
3582         # -- Tools Menu
3583         #
3584         if {[file exists /usr/local/miga/lib/gui-miga]
3585                 && [file exists .pvcsrc]} {
3586         proc do_miga {} {
3587                 global ui_status_value
3588                 if {![lock_index update]} return
3589                 set cmd [list sh --login -c "/usr/local/miga/lib/gui-miga \"[pwd]\""]
3590                 set miga_fd [open "|$cmd" r]
3591                 fconfigure $miga_fd -blocking 0
3592                 fileevent $miga_fd readable [list miga_done $miga_fd]
3593                 set ui_status_value {Running miga...}
3594         }
3595         proc miga_done {fd} {
3596                 read $fd 512
3597                 if {[eof $fd]} {
3598                         close $fd
3599                         unlock_index
3600                         rescan [list set ui_status_value {Ready.}]
3601                 }
3602         }
3603         .mbar add cascade -label Tools -menu .mbar.tools
3604         menu .mbar.tools
3605         .mbar.tools add command -label "Migrate" \
3606                 -command do_miga \
3607                 -font font_ui
3608         lappend disable_on_lock \
3609                 [list .mbar.tools entryconf [.mbar.tools index last] -state]
3610         }
3611
3612         # -- Help Menu
3613         #
3614         .mbar add cascade -label Help -menu .mbar.help
3615         menu .mbar.help
3616
3617         .mbar.help add command -label "About [appname]" \
3618                 -command do_about \
3619                 -font font_ui
3620 }
3621
3622
3623 # -- Branch Control
3624 #
3625 frame .branch \
3626         -borderwidth 1 \
3627         -relief sunken
3628 label .branch.l1 \
3629         -text {Current Branch:} \
3630         -anchor w \
3631         -justify left \
3632         -font font_ui
3633 label .branch.cb \
3634         -textvariable current_branch \
3635         -anchor w \
3636         -justify left \
3637         -font font_ui
3638 pack .branch.l1 -side left
3639 pack .branch.cb -side left -fill x
3640 pack .branch -side top -fill x
3641
3642 # -- Main Window Layout
3643 #
3644 panedwindow .vpane -orient vertical
3645 panedwindow .vpane.files -orient horizontal
3646 .vpane add .vpane.files -sticky nsew -height 100 -width 400
3647 pack .vpane -anchor n -side top -fill both -expand 1
3648
3649 # -- Index File List
3650 #
3651 frame .vpane.files.index -height 100 -width 400
3652 label .vpane.files.index.title -text {Changes To Be Committed} \
3653         -background green \
3654         -font font_ui
3655 text $ui_index -background white -borderwidth 0 \
3656         -width 40 -height 10 \
3657         -wrap none \
3658         -font font_ui \
3659         -cursor $cursor_ptr \
3660         -xscrollcommand {.vpane.files.index.sx set} \
3661         -yscrollcommand {.vpane.files.index.sy set} \
3662         -state disabled
3663 scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
3664 scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
3665 pack .vpane.files.index.title -side top -fill x
3666 pack .vpane.files.index.sx -side bottom -fill x
3667 pack .vpane.files.index.sy -side right -fill y
3668 pack $ui_index -side left -fill both -expand 1
3669 .vpane.files add .vpane.files.index -sticky nsew
3670
3671 # -- Working Directory File List
3672 #
3673 frame .vpane.files.workdir -height 100 -width 100
3674 label .vpane.files.workdir.title -text {Changed But Not Updated} \
3675         -background red \
3676         -font font_ui
3677 text $ui_workdir -background white -borderwidth 0 \
3678         -width 40 -height 10 \
3679         -wrap none \
3680         -font font_ui \
3681         -cursor $cursor_ptr \
3682         -xscrollcommand {.vpane.files.workdir.sx set} \
3683         -yscrollcommand {.vpane.files.workdir.sy set} \
3684         -state disabled
3685 scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
3686 scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
3687 pack .vpane.files.workdir.title -side top -fill x
3688 pack .vpane.files.workdir.sx -side bottom -fill x
3689 pack .vpane.files.workdir.sy -side right -fill y
3690 pack $ui_workdir -side left -fill both -expand 1
3691 .vpane.files add .vpane.files.workdir -sticky nsew
3692
3693 foreach i [list $ui_index $ui_workdir] {
3694         $i tag conf in_diff -font font_uibold
3695         $i tag conf in_sel \
3696                 -background [$i cget -foreground] \
3697                 -foreground [$i cget -background]
3698 }
3699 unset i
3700
3701 # -- Diff and Commit Area
3702 #
3703 frame .vpane.lower -height 300 -width 400
3704 frame .vpane.lower.commarea
3705 frame .vpane.lower.diff -relief sunken -borderwidth 1
3706 pack .vpane.lower.commarea -side top -fill x
3707 pack .vpane.lower.diff -side bottom -fill both -expand 1
3708 .vpane add .vpane.lower -stick nsew
3709
3710 # -- Commit Area Buttons
3711 #
3712 frame .vpane.lower.commarea.buttons
3713 label .vpane.lower.commarea.buttons.l -text {} \
3714         -anchor w \
3715         -justify left \
3716         -font font_ui
3717 pack .vpane.lower.commarea.buttons.l -side top -fill x
3718 pack .vpane.lower.commarea.buttons -side left -fill y
3719
3720 button .vpane.lower.commarea.buttons.rescan -text {Rescan} \
3721         -command do_rescan \
3722         -font font_ui
3723 pack .vpane.lower.commarea.buttons.rescan -side top -fill x
3724 lappend disable_on_lock \
3725         {.vpane.lower.commarea.buttons.rescan conf -state}
3726
3727 button .vpane.lower.commarea.buttons.incall -text {Add All} \
3728         -command do_add_all \
3729         -font font_ui
3730 pack .vpane.lower.commarea.buttons.incall -side top -fill x
3731 lappend disable_on_lock \
3732         {.vpane.lower.commarea.buttons.incall conf -state}
3733
3734 button .vpane.lower.commarea.buttons.signoff -text {Sign Off} \
3735         -command do_signoff \
3736         -font font_ui
3737 pack .vpane.lower.commarea.buttons.signoff -side top -fill x
3738
3739 button .vpane.lower.commarea.buttons.commit -text {Commit} \
3740         -command do_commit \
3741         -font font_ui
3742 pack .vpane.lower.commarea.buttons.commit -side top -fill x
3743 lappend disable_on_lock \
3744         {.vpane.lower.commarea.buttons.commit conf -state}
3745
3746 # -- Commit Message Buffer
3747 #
3748 frame .vpane.lower.commarea.buffer
3749 frame .vpane.lower.commarea.buffer.header
3750 set ui_comm .vpane.lower.commarea.buffer.t
3751 set ui_coml .vpane.lower.commarea.buffer.header.l
3752 radiobutton .vpane.lower.commarea.buffer.header.new \
3753         -text {New Commit} \
3754         -command do_select_commit_type \
3755         -variable selected_commit_type \
3756         -value new \
3757         -font font_ui
3758 lappend disable_on_lock \
3759         [list .vpane.lower.commarea.buffer.header.new conf -state]
3760 radiobutton .vpane.lower.commarea.buffer.header.amend \
3761         -text {Amend Last Commit} \
3762         -command do_select_commit_type \
3763         -variable selected_commit_type \
3764         -value amend \
3765         -font font_ui
3766 lappend disable_on_lock \
3767         [list .vpane.lower.commarea.buffer.header.amend conf -state]
3768 label $ui_coml \
3769         -anchor w \
3770         -justify left \
3771         -font font_ui
3772 proc trace_commit_type {varname args} {
3773         global ui_coml commit_type
3774         switch -glob -- $commit_type {
3775         initial       {set txt {Initial Commit Message:}}
3776         amend         {set txt {Amended Commit Message:}}
3777         amend-initial {set txt {Amended Initial Commit Message:}}
3778         amend-merge   {set txt {Amended Merge Commit Message:}}
3779         merge         {set txt {Merge Commit Message:}}
3780         *             {set txt {Commit Message:}}
3781         }
3782         $ui_coml conf -text $txt
3783 }
3784 trace add variable commit_type write trace_commit_type
3785 pack $ui_coml -side left -fill x
3786 pack .vpane.lower.commarea.buffer.header.amend -side right
3787 pack .vpane.lower.commarea.buffer.header.new -side right
3788
3789 text $ui_comm -background white -borderwidth 1 \
3790         -undo true \
3791         -maxundo 20 \
3792         -autoseparators true \
3793         -relief sunken \
3794         -width 75 -height 9 -wrap none \
3795         -font font_diff \
3796         -yscrollcommand {.vpane.lower.commarea.buffer.sby set}
3797 scrollbar .vpane.lower.commarea.buffer.sby \
3798         -command [list $ui_comm yview]
3799 pack .vpane.lower.commarea.buffer.header -side top -fill x
3800 pack .vpane.lower.commarea.buffer.sby -side right -fill y
3801 pack $ui_comm -side left -fill y
3802 pack .vpane.lower.commarea.buffer -side left -fill y
3803
3804 # -- Commit Message Buffer Context Menu
3805 #
3806 set ctxm .vpane.lower.commarea.buffer.ctxm
3807 menu $ctxm -tearoff 0
3808 $ctxm add command \
3809         -label {Cut} \
3810         -font font_ui \
3811         -command {tk_textCut $ui_comm}
3812 $ctxm add command \
3813         -label {Copy} \
3814         -font font_ui \
3815         -command {tk_textCopy $ui_comm}
3816 $ctxm add command \
3817         -label {Paste} \
3818         -font font_ui \
3819         -command {tk_textPaste $ui_comm}
3820 $ctxm add command \
3821         -label {Delete} \
3822         -font font_ui \
3823         -command {$ui_comm delete sel.first sel.last}
3824 $ctxm add separator
3825 $ctxm add command \
3826         -label {Select All} \
3827         -font font_ui \
3828         -command {$ui_comm tag add sel 0.0 end}
3829 $ctxm add command \
3830         -label {Copy All} \
3831         -font font_ui \
3832         -command {
3833                 $ui_comm tag add sel 0.0 end
3834                 tk_textCopy $ui_comm
3835                 $ui_comm tag remove sel 0.0 end
3836         }
3837 $ctxm add separator
3838 $ctxm add command \
3839         -label {Sign Off} \
3840         -font font_ui \
3841         -command do_signoff
3842 bind_button3 $ui_comm "tk_popup $ctxm %X %Y"
3843
3844 # -- Diff Header
3845 #
3846 set current_diff_path {}
3847 set diff_actions [list]
3848 proc trace_current_diff_path {varname args} {
3849         global current_diff_path diff_actions file_states
3850         if {$current_diff_path eq {}} {
3851                 set s {}
3852                 set f {}
3853                 set p {}
3854                 set o disabled
3855         } else {
3856                 set p $current_diff_path
3857                 set s [mapdesc [lindex $file_states($p) 0] $p]
3858                 set f {File:}
3859                 set p [escape_path $p]
3860                 set o normal
3861         }
3862
3863         .vpane.lower.diff.header.status configure -text $s
3864         .vpane.lower.diff.header.file configure -text $f
3865         .vpane.lower.diff.header.path configure -text $p
3866         foreach w $diff_actions {
3867                 uplevel #0 $w $o
3868         }
3869 }
3870 trace add variable current_diff_path write trace_current_diff_path
3871
3872 frame .vpane.lower.diff.header -background orange
3873 label .vpane.lower.diff.header.status \
3874         -background orange \
3875         -width $max_status_desc \
3876         -anchor w \
3877         -justify left \
3878         -font font_ui
3879 label .vpane.lower.diff.header.file \
3880         -background orange \
3881         -anchor w \
3882         -justify left \
3883         -font font_ui
3884 label .vpane.lower.diff.header.path \
3885         -background orange \
3886         -anchor w \
3887         -justify left \
3888         -font font_ui
3889 pack .vpane.lower.diff.header.status -side left
3890 pack .vpane.lower.diff.header.file -side left
3891 pack .vpane.lower.diff.header.path -fill x
3892 set ctxm .vpane.lower.diff.header.ctxm
3893 menu $ctxm -tearoff 0
3894 $ctxm add command \
3895         -label {Copy} \
3896         -font font_ui \
3897         -command {
3898                 clipboard clear
3899                 clipboard append \
3900                         -format STRING \
3901                         -type STRING \
3902                         -- $current_diff_path
3903         }
3904 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3905 bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"
3906
3907 # -- Diff Body
3908 #
3909 frame .vpane.lower.diff.body
3910 set ui_diff .vpane.lower.diff.body.t
3911 text $ui_diff -background white -borderwidth 0 \
3912         -width 80 -height 15 -wrap none \
3913         -font font_diff \
3914         -xscrollcommand {.vpane.lower.diff.body.sbx set} \
3915         -yscrollcommand {.vpane.lower.diff.body.sby set} \
3916         -state disabled
3917 scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
3918         -command [list $ui_diff xview]
3919 scrollbar .vpane.lower.diff.body.sby -orient vertical \
3920         -command [list $ui_diff yview]
3921 pack .vpane.lower.diff.body.sbx -side bottom -fill x
3922 pack .vpane.lower.diff.body.sby -side right -fill y
3923 pack $ui_diff -side left -fill both -expand 1
3924 pack .vpane.lower.diff.header -side top -fill x
3925 pack .vpane.lower.diff.body -side bottom -fill both -expand 1
3926
3927 $ui_diff tag conf d_@ -foreground blue -font font_diffbold
3928 $ui_diff tag conf d_+ -foreground {#00a000}
3929 $ui_diff tag conf d_- -foreground red
3930
3931 $ui_diff tag conf d_++ -foreground {#00a000}
3932 $ui_diff tag conf d_-- -foreground red
3933 $ui_diff tag conf d_+s \
3934         -foreground {#00a000} \
3935         -background {#e2effa}
3936 $ui_diff tag conf d_-s \
3937         -foreground red \
3938         -background {#e2effa}
3939 $ui_diff tag conf d_s+ \
3940         -foreground {#00a000} \
3941         -background ivory1
3942 $ui_diff tag conf d_s- \
3943         -foreground red \
3944         -background ivory1
3945
3946 $ui_diff tag conf d<<<<<<< \
3947         -foreground orange \
3948         -font font_diffbold
3949 $ui_diff tag conf d======= \
3950         -foreground orange \
3951         -font font_diffbold
3952 $ui_diff tag conf d>>>>>>> \
3953         -foreground orange \
3954         -font font_diffbold
3955
3956 $ui_diff tag raise sel
3957
3958 # -- Diff Body Context Menu
3959 #
3960 set ctxm .vpane.lower.diff.body.ctxm
3961 menu $ctxm -tearoff 0
3962 $ctxm add command \
3963         -label {Refresh} \
3964         -font font_ui \
3965         -command reshow_diff
3966 $ctxm add command \
3967         -label {Copy} \
3968         -font font_ui \
3969         -command {tk_textCopy $ui_diff}
3970 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3971 $ctxm add command \
3972         -label {Select All} \
3973         -font font_ui \
3974         -command {$ui_diff tag add sel 0.0 end}
3975 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3976 $ctxm add command \
3977         -label {Copy All} \
3978         -font font_ui \
3979         -command {
3980                 $ui_diff tag add sel 0.0 end
3981                 tk_textCopy $ui_diff
3982                 $ui_diff tag remove sel 0.0 end
3983         }
3984 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3985 $ctxm add separator
3986 $ctxm add command \
3987         -label {Decrease Font Size} \
3988         -font font_ui \
3989         -command {incr_font_size font_diff -1}
3990 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3991 $ctxm add command \
3992         -label {Increase Font Size} \
3993         -font font_ui \
3994         -command {incr_font_size font_diff 1}
3995 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
3996 $ctxm add separator
3997 $ctxm add command \
3998         -label {Show Less Context} \
3999         -font font_ui \
4000         -command {if {$repo_config(gui.diffcontext) >= 2} {
4001                 incr repo_config(gui.diffcontext) -1
4002                 reshow_diff
4003         }}
4004 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4005 $ctxm add command \
4006         -label {Show More Context} \
4007         -font font_ui \
4008         -command {
4009                 incr repo_config(gui.diffcontext)
4010                 reshow_diff
4011         }
4012 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
4013 $ctxm add separator
4014 $ctxm add command -label {Options...} \
4015         -font font_ui \
4016         -command do_options
4017 bind_button3 $ui_diff "tk_popup $ctxm %X %Y"
4018
4019 # -- Status Bar
4020 #
4021 set ui_status_value {Initializing...}
4022 label .status -textvariable ui_status_value \
4023         -anchor w \
4024         -justify left \
4025         -borderwidth 1 \
4026         -relief sunken \
4027         -font font_ui
4028 pack .status -anchor w -side bottom -fill x
4029
4030 # -- Load geometry
4031 #
4032 catch {
4033 set gm $repo_config(gui.geometry)
4034 wm geometry . [lindex $gm 0]
4035 .vpane sash place 0 \
4036         [lindex [.vpane sash coord 0] 0] \
4037         [lindex $gm 1]
4038 .vpane.files sash place 0 \
4039         [lindex $gm 2] \
4040         [lindex [.vpane.files sash coord 0] 1]
4041 unset gm
4042 }
4043
4044 # -- Key Bindings
4045 #
4046 bind $ui_comm <$M1B-Key-Return> {do_commit;break}
4047 bind $ui_comm <$M1B-Key-i> {do_add_all;break}
4048 bind $ui_comm <$M1B-Key-I> {do_add_all;break}
4049 bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
4050 bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
4051 bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
4052 bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
4053 bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
4054 bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
4055 bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
4056 bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
4057
4058 bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
4059 bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
4060 bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
4061 bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
4062 bind $ui_diff <$M1B-Key-v> {break}
4063 bind $ui_diff <$M1B-Key-V> {break}
4064 bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
4065 bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
4066 bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
4067 bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
4068 bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
4069 bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
4070
4071 if {!$single_commit} {
4072         bind . <$M1B-Key-n> do_create_branch
4073         bind . <$M1B-Key-N> do_create_branch
4074 }
4075
4076 bind .   <Destroy> do_quit
4077 bind all <Key-F5> do_rescan
4078 bind all <$M1B-Key-r> do_rescan
4079 bind all <$M1B-Key-R> do_rescan
4080 bind .   <$M1B-Key-s> do_signoff
4081 bind .   <$M1B-Key-S> do_signoff
4082 bind .   <$M1B-Key-i> do_add_all
4083 bind .   <$M1B-Key-I> do_add_all
4084 bind .   <$M1B-Key-Return> do_commit
4085 bind all <$M1B-Key-q> do_quit
4086 bind all <$M1B-Key-Q> do_quit
4087 bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
4088 bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}
4089 foreach i [list $ui_index $ui_workdir] {
4090         bind $i <Button-1>       "toggle_or_diff         $i %x %y; break"
4091         bind $i <$M1B-Button-1>  "add_one_to_selection   $i %x %y; break"
4092         bind $i <Shift-Button-1> "add_range_to_selection $i %x %y; break"
4093 }
4094 unset i
4095
4096 set file_lists($ui_index) [list]
4097 set file_lists($ui_workdir) [list]
4098
4099 set HEAD {}
4100 set PARENT {}
4101 set MERGE_HEAD [list]
4102 set commit_type {}
4103 set empty_tree {}
4104 set current_branch {}
4105 set current_diff_path {}
4106 set selected_commit_type new
4107
4108 wm title . "[appname] ([file normalize [file dirname [gitdir]]])"
4109 focus -force $ui_comm
4110
4111 # -- Warn the user about environmental problems.  Cygwin's Tcl
4112 #    does *not* pass its env array onto any processes it spawns.
4113 #    This means that git processes get none of our environment.
4114 #
4115 if {[is_Windows]} {
4116         set ignored_env 0
4117         set suggest_user {}
4118         set msg "Possible environment issues exist.
4119
4120 The following environment variables are probably
4121 going to be ignored by any Git subprocess run
4122 by [appname]:
4123
4124 "
4125         foreach name [array names env] {
4126                 switch -regexp -- $name {
4127                 {^GIT_INDEX_FILE$} -
4128                 {^GIT_OBJECT_DIRECTORY$} -
4129                 {^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
4130                 {^GIT_DIFF_OPTS$} -
4131                 {^GIT_EXTERNAL_DIFF$} -
4132                 {^GIT_PAGER$} -
4133                 {^GIT_TRACE$} -
4134                 {^GIT_CONFIG$} -
4135                 {^GIT_CONFIG_LOCAL$} -
4136                 {^GIT_(AUTHOR|COMMITTER)_DATE$} {
4137                         append msg " - $name\n"
4138                         incr ignored_env
4139                 }
4140                 {^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
4141                         append msg " - $name\n"
4142                         incr ignored_env
4143                         set suggest_user $name
4144                 }
4145                 }
4146         }
4147         if {$ignored_env > 0} {
4148                 append msg "
4149 This is due to a known issue with the
4150 Tcl binary distributed by Cygwin."
4151
4152                 if {$suggest_user ne {}} {
4153                         append msg "
4154
4155 A good replacement for $suggest_user
4156 is placing values for the user.name and
4157 user.email settings into your personal
4158 ~/.gitconfig file.
4159 "
4160                 }
4161                 warn_popup $msg
4162         }
4163         unset ignored_env msg suggest_user name
4164 }
4165
4166 # -- Only initialize complex UI if we are going to stay running.
4167 #
4168 if {!$single_commit} {
4169         load_all_remotes
4170         load_all_heads
4171
4172         populate_branch_menu
4173         populate_fetch_menu .mbar.fetch
4174         populate_pull_menu .mbar.pull
4175         populate_push_menu .mbar.push
4176 }
4177
4178 # -- Only suggest a gc run if we are going to stay running.
4179 #
4180 if {!$single_commit} {
4181         set object_limit 2000
4182         if {[is_Windows]} {set object_limit 200}
4183         regexp {^([0-9]+) objects,} [exec git count-objects] _junk objects_current
4184         if {$objects_current >= $object_limit} {
4185                 if {[ask_popup \
4186                         "This repository currently has $objects_current loose objects.
4187
4188 To maintain optimal performance it is strongly
4189 recommended that you compress the database
4190 when more than $object_limit loose objects exist.
4191
4192 Compress the database now?"] eq yes} {
4193                         do_gc
4194                 }
4195         }
4196         unset object_limit _junk objects_current
4197 }
4198
4199 lock_index begin-read
4200 after 1 do_rescan