Merge branch 'jc/maint-1.6.0-keep-pack' into maint
[git] / git-gui / lib / blame.tcl
1 # git-gui blame viewer
2 # Copyright (C) 2006, 2007 Shawn Pearce
3
4 class blame {
5
6 image create photo ::blame::img_back_arrow -data {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}
7
8 # Persistant data (survives loads)
9 #
10 field history {}; # viewer history: {commit path}
11 field header    ; # array commit,key -> header field
12
13 # Tk UI control paths
14 #
15 field w          ; # top window in this viewer
16 field w_back     ; # our back button
17 field w_path     ; # label showing the current file path
18 field w_columns  ; # list of all column widgets in the viewer
19 field w_line     ; # text column: all line numbers
20 field w_amov     ; # text column: annotations + move tracking
21 field w_asim     ; # text column: annotations (simple computation)
22 field w_file     ; # text column: actual file data
23 field w_cviewer  ; # pane showing commit message
24 field finder     ; # find mini-dialog frame
25 field status     ; # status mega-widget instance
26 field old_height ; # last known height of $w.file_pane
27
28
29 # Tk UI colors
30 #
31 variable active_color #c0edc5
32 variable group_colors {
33         #d6d6d6
34         #e1e1e1
35         #ececec
36 }
37
38 # Current blame data; cleared/reset on each load
39 #
40 field commit               ; # input commit to blame
41 field path                 ; # input filename to view in $commit
42
43 field current_fd        {} ; # background process running
44 field highlight_line    -1 ; # current line selected
45 field highlight_column  {} ; # current commit column selected
46 field highlight_commit  {} ; # sha1 of commit selected
47
48 field total_lines       0  ; # total length of file
49 field blame_lines       0  ; # number of lines computed
50 field amov_data            ; # list of {commit origfile origline}
51 field asim_data            ; # list of {commit origfile origline}
52
53 field r_commit             ; # commit currently being parsed
54 field r_orig_line          ; # original line number
55 field r_final_line         ; # final line number
56 field r_line_count         ; # lines in this region
57
58 field tooltip_wm        {} ; # Current tooltip toplevel, if open
59 field tooltip_t         {} ; # Text widget in $tooltip_wm
60 field tooltip_timer     {} ; # Current timer event for our tooltip
61 field tooltip_commit    {} ; # Commit(s) in tooltip
62
63 constructor new {i_commit i_path i_jump} {
64         global cursor_ptr M1B M1T have_tk85
65         variable active_color
66         variable group_colors
67
68         set commit $i_commit
69         set path   $i_path
70
71         make_toplevel top w
72         wm title $top [append "[appname] ([reponame]): " [mc "File Viewer"]]
73
74         set font_w [font measure font_diff "0"]
75
76         frame $w.header -background gold
77         label $w.header.commit_l \
78                 -text [mc "Commit:"] \
79                 -background gold \
80                 -foreground black \
81                 -anchor w \
82                 -justify left
83         set w_back $w.header.commit_b
84         label $w_back \
85                 -image ::blame::img_back_arrow \
86                 -borderwidth 0 \
87                 -relief flat \
88                 -state disabled \
89                 -background gold \
90                 -foreground black \
91                 -activebackground gold
92         bind $w_back <Button-1> "
93                 if {\[$w_back cget -state\] eq {normal}} {
94                         [cb _history_menu]
95                 }
96                 "
97         label $w.header.commit \
98                 -textvariable @commit \
99                 -background gold \
100                 -foreground black \
101                 -anchor w \
102                 -justify left
103         label $w.header.path_l \
104                 -text [mc "File:"] \
105                 -background gold \
106                 -foreground black \
107                 -anchor w \
108                 -justify left
109         set w_path $w.header.path
110         label $w_path \
111                 -background gold \
112                 -foreground black \
113                 -anchor w \
114                 -justify left
115         pack $w.header.commit_l -side left
116         pack $w_back -side left
117         pack $w.header.commit -side left
118         pack $w_path -fill x -side right
119         pack $w.header.path_l -side right
120
121         panedwindow $w.file_pane -orient vertical -borderwidth 0 -sashwidth 3
122         frame $w.file_pane.out -relief flat -borderwidth 1
123         frame $w.file_pane.cm -relief sunken -borderwidth 1
124         $w.file_pane add $w.file_pane.out \
125                 -sticky nsew \
126                 -minsize 100 \
127                 -height 100 \
128                 -width 100
129         $w.file_pane add $w.file_pane.cm \
130                 -sticky nsew \
131                 -minsize 25 \
132                 -height 25 \
133                 -width 100
134
135         set w_line $w.file_pane.out.linenumber_t
136         text $w_line \
137                 -takefocus 0 \
138                 -highlightthickness 0 \
139                 -padx 0 -pady 0 \
140                 -background white \
141                 -foreground black \
142                 -borderwidth 0 \
143                 -state disabled \
144                 -wrap none \
145                 -height 40 \
146                 -width 6 \
147                 -font font_diff
148         $w_line tag conf linenumber -justify right -rmargin 5
149
150         set w_amov $w.file_pane.out.amove_t
151         text $w_amov \
152                 -takefocus 0 \
153                 -highlightthickness 0 \
154                 -padx 0 -pady 0 \
155                 -background white \
156                 -foreground black \
157                 -borderwidth 0 \
158                 -state disabled \
159                 -wrap none \
160                 -height 40 \
161                 -width 5 \
162                 -font font_diff
163         $w_amov tag conf author_abbr -justify right -rmargin 5
164         $w_amov tag conf curr_commit
165         $w_amov tag conf prior_commit -foreground blue -underline 1
166         $w_amov tag bind prior_commit \
167                 <Button-1> \
168                 "[cb _load_commit $w_amov @amov_data @%x,%y];break"
169
170         set w_asim $w.file_pane.out.asimple_t
171         text $w_asim \
172                 -takefocus 0 \
173                 -highlightthickness 0 \
174                 -padx 0 -pady 0 \
175                 -background white \
176                 -foreground black \
177                 -borderwidth 0 \
178                 -state disabled \
179                 -wrap none \
180                 -height 40 \
181                 -width 4 \
182                 -font font_diff
183         $w_asim tag conf author_abbr -justify right
184         $w_asim tag conf curr_commit
185         $w_asim tag conf prior_commit -foreground blue -underline 1
186         $w_asim tag bind prior_commit \
187                 <Button-1> \
188                 "[cb _load_commit $w_asim @asim_data @%x,%y];break"
189
190         set w_file $w.file_pane.out.file_t
191         text $w_file \
192                 -takefocus 0 \
193                 -highlightthickness 0 \
194                 -padx 0 -pady 0 \
195                 -background white \
196                 -foreground black \
197                 -borderwidth 0 \
198                 -state disabled \
199                 -wrap none \
200                 -height 40 \
201                 -width 80 \
202                 -xscrollcommand [list $w.file_pane.out.sbx set] \
203                 -font font_diff
204         if {$have_tk85} {
205                 $w_file configure -inactiveselectbackground darkblue
206         }
207         $w_file tag conf found \
208                 -background yellow
209
210         set w_columns [list $w_amov $w_asim $w_line $w_file]
211
212         scrollbar $w.file_pane.out.sbx \
213                 -orient h \
214                 -command [list $w_file xview]
215         scrollbar $w.file_pane.out.sby \
216                 -orient v \
217                 -command [list scrollbar2many $w_columns yview]
218         eval grid $w_columns $w.file_pane.out.sby -sticky nsew
219         grid conf \
220                 $w.file_pane.out.sbx \
221                 -column [expr {[llength $w_columns] - 1}] \
222                 -sticky we
223         grid columnconfigure \
224                 $w.file_pane.out \
225                 [expr {[llength $w_columns] - 1}] \
226                 -weight 1
227         grid rowconfigure $w.file_pane.out 0 -weight 1
228
229         set finder [::searchbar::new \
230                 $w.file_pane.out.ff $w_file \
231                 -column [expr {[llength $w_columns] - 1}] \
232                 ]
233
234         set w_cviewer $w.file_pane.cm.t
235         text $w_cviewer \
236                 -background white \
237                 -foreground black \
238                 -borderwidth 0 \
239                 -state disabled \
240                 -wrap none \
241                 -height 10 \
242                 -width 80 \
243                 -xscrollcommand [list $w.file_pane.cm.sbx set] \
244                 -yscrollcommand [list $w.file_pane.cm.sby set] \
245                 -font font_diff
246         $w_cviewer tag conf still_loading \
247                 -font font_uiitalic \
248                 -justify center
249         $w_cviewer tag conf header_key \
250                 -tabs {3c} \
251                 -background $active_color \
252                 -font font_uibold
253         $w_cviewer tag conf header_val \
254                 -background $active_color \
255                 -font font_ui
256         $w_cviewer tag raise sel
257         scrollbar $w.file_pane.cm.sbx \
258                 -orient h \
259                 -command [list $w_cviewer xview]
260         scrollbar $w.file_pane.cm.sby \
261                 -orient v \
262                 -command [list $w_cviewer yview]
263         pack $w.file_pane.cm.sby -side right -fill y
264         pack $w.file_pane.cm.sbx -side bottom -fill x
265         pack $w_cviewer -expand 1 -fill both
266
267         set status [::status_bar::new $w.status]
268
269         menu $w.ctxm -tearoff 0
270         $w.ctxm add command \
271                 -label [mc "Copy Commit"] \
272                 -command [cb _copycommit]
273         $w.ctxm add separator
274         $w.ctxm add command \
275                 -label [mc "Find Text..."] \
276                 -accelerator F7 \
277                 -command [list searchbar::show $finder]
278         menu $w.ctxm.enc
279         build_encoding_menu $w.ctxm.enc [cb _setencoding]
280         $w.ctxm add cascade \
281                 -label [mc "Encoding"] \
282                 -menu $w.ctxm.enc
283         $w.ctxm add command \
284                 -label [mc "Do Full Copy Detection"] \
285                 -command [cb _fullcopyblame]
286         $w.ctxm add separator
287         $w.ctxm add command \
288                 -label [mc "Show History Context"] \
289                 -command [cb _gitkcommit]
290         $w.ctxm add command \
291                 -label [mc "Blame Parent Commit"] \
292                 -command [cb _blameparent]
293
294         foreach i $w_columns {
295                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
296                         $i tag conf color$g -background [lindex $group_colors $g]
297                 }
298
299                 if {$i eq $w_file} {
300                         $w_file tag raise found
301                 }
302                 $i tag raise sel
303
304                 $i conf -cursor $cursor_ptr
305                 $i conf -yscrollcommand \
306                         "[list ::searchbar::scrolled $finder]
307                          [list many2scrollbar $w_columns yview $w.file_pane.out.sby]"
308                 bind $i <Button-1> "
309                         [cb _hide_tooltip]
310                         [cb _click $i @%x,%y]
311                         focus $i
312                 "
313                 bind $i <Any-Motion>  [cb _show_tooltip $i @%x,%y]
314                 bind $i <Any-Enter>   [cb _hide_tooltip]
315                 bind $i <Any-Leave>   [cb _hide_tooltip]
316                 bind_button3 $i "
317                         [cb _hide_tooltip]
318                         set cursorX %x
319                         set cursorY %y
320                         set cursorW %W
321                         tk_popup $w.ctxm %X %Y
322                 "
323                 bind $i <Shift-Tab> "[list focus $w_cviewer];break"
324                 bind $i <Tab>       "[cb _focus_search $w_cviewer];break"
325         }
326
327         foreach i [concat $w_columns $w_cviewer] {
328                 bind $i <Key-Up>        {catch {%W yview scroll -1 units};break}
329                 bind $i <Key-Down>      {catch {%W yview scroll  1 units};break}
330                 bind $i <Key-Left>      {catch {%W xview scroll -1 units};break}
331                 bind $i <Key-Right>     {catch {%W xview scroll  1 units};break}
332                 bind $i <Key-k>         {catch {%W yview scroll -1 units};break}
333                 bind $i <Key-j>         {catch {%W yview scroll  1 units};break}
334                 bind $i <Key-h>         {catch {%W xview scroll -1 units};break}
335                 bind $i <Key-l>         {catch {%W xview scroll  1 units};break}
336                 bind $i <Control-Key-b> {catch {%W yview scroll -1 pages};break}
337                 bind $i <Control-Key-f> {catch {%W yview scroll  1 pages};break}
338         }
339
340         bind $w_cviewer <Shift-Tab> "[cb _focus_search $w_file];break"
341         bind $w_cviewer <Tab>       "[list focus $w_file];break"
342         bind $w_cviewer <Button-1>   [list focus $w_cviewer]
343         bind $w_file    <Visibility> [cb _focus_search $w_file]
344         bind $top       <F7>         [list searchbar::show $finder]
345         bind $top       <Escape>     [list searchbar::hide $finder]
346         bind $top       <F3>         [list searchbar::find_next $finder]
347         bind $top       <Shift-F3>   [list searchbar::find_prev $finder]
348         catch { bind $top <Shift-Key-XF86_Switch_VT_3> [list searchbar::find_prev $finder] }
349
350         grid configure $w.header -sticky ew
351         grid configure $w.file_pane -sticky nsew
352         grid configure $w.status -sticky ew
353         grid columnconfigure $top 0 -weight 1
354         grid rowconfigure $top 0 -weight 0
355         grid rowconfigure $top 1 -weight 1
356         grid rowconfigure $top 2 -weight 0
357
358         set req_w [winfo reqwidth  $top]
359         set req_h [winfo reqheight $top]
360         set scr_w [expr {[winfo screenwidth $top] - 40}]
361         set scr_h [expr {[winfo screenheight $top] - 120}]
362         set opt_w [expr {$font_w * (80 + 5*3 + 3)}]
363         if {$req_w < $opt_w} {set req_w $opt_w}
364         if {$req_w > $scr_w} {set req_w $scr_w}
365         set opt_h [expr {$req_w*4/3}]
366         if {$req_h < $scr_h} {set req_h $scr_h}
367         if {$req_h > $opt_h} {set req_h $opt_h}
368         set g "${req_w}x${req_h}"
369         wm geometry $top $g
370         update
371
372         set old_height [winfo height $w.file_pane]
373         $w.file_pane sash place 0 \
374                 [lindex [$w.file_pane sash coord 0] 0] \
375                 [expr {int($old_height * 0.80)}]
376         bind $w.file_pane <Configure> \
377         "if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
378
379         wm protocol $top WM_DELETE_WINDOW "destroy $top"
380         bind $top <Destroy> [cb _handle_destroy %W]
381
382         _load $this $i_jump
383 }
384
385 method _focus_search {win} {
386         if {[searchbar::visible $finder]} {
387                 focus [searchbar::editor $finder]
388         } else {
389                 focus $win
390         }
391 }
392
393 method _handle_destroy {win} {
394         if {$win eq $w} {
395                 _kill $this
396                 delete_this
397         }
398 }
399
400 method _kill {} {
401         if {$current_fd ne {}} {
402                 kill_file_process $current_fd
403                 catch {close $current_fd}
404                 set current_fd {}
405         }
406 }
407
408 method _load {jump} {
409         variable group_colors
410
411         _hide_tooltip $this
412
413         if {$total_lines != 0 || $current_fd ne {}} {
414                 _kill $this
415
416                 foreach i $w_columns {
417                         $i conf -state normal
418                         $i delete 0.0 end
419                         foreach g [$i tag names] {
420                                 if {[regexp {^g[0-9a-f]{40}$} $g]} {
421                                         $i tag delete $g
422                                 }
423                         }
424                         $i conf -state disabled
425                 }
426
427                 $w_cviewer conf -state normal
428                 $w_cviewer delete 0.0 end
429                 $w_cviewer conf -state disabled
430
431                 set highlight_line -1
432                 set highlight_column {}
433                 set highlight_commit {}
434                 set total_lines 0
435         }
436
437         if {$history eq {}} {
438                 $w_back conf -state disabled
439         } else {
440                 $w_back conf -state normal
441         }
442
443         # Index 0 is always empty.  There is never line 0 as
444         # we use only 1 based lines, as that matches both with
445         # git-blame output and with Tk's text widget.
446         #
447         set amov_data [list [list]]
448         set asim_data [list [list]]
449
450         $status show [mc "Reading %s..." "$commit:[escape_path $path]"]
451         $w_path conf -text [escape_path $path]
452         if {$commit eq {}} {
453                 set fd [open $path r]
454                 fconfigure $fd -eofchar {}
455         } else {
456                 set fd [git_read cat-file blob "$commit:$path"]
457         }
458         fconfigure $fd \
459                 -blocking 0 \
460                 -translation lf \
461                 -encoding [get_path_encoding $path]
462         fileevent $fd readable [cb _read_file $fd $jump]
463         set current_fd $fd
464 }
465
466 method _history_menu {} {
467         set m $w.backmenu
468         if {[winfo exists $m]} {
469                 $m delete 0 end
470         } else {
471                 menu $m -tearoff 0
472         }
473
474         for {set i [expr {[llength $history] - 1}]
475                 } {$i >= 0} {incr i -1} {
476                 set e [lindex $history $i]
477                 set c [lindex $e 0]
478                 set f [lindex $e 1]
479
480                 if {[regexp {^[0-9a-f]{40}$} $c]} {
481                         set t [string range $c 0 8]...
482                 } elseif {$c eq {}} {
483                         set t {Working Directory}
484                 } else {
485                         set t $c
486                 }
487                 if {![catch {set summary $header($c,summary)}]} {
488                         append t " $summary"
489                         if {[string length $t] > 70} {
490                                 set t [string range $t 0 66]...
491                         }
492                 }
493
494                 $m add command -label $t -command [cb _goback $i]
495         }
496         set X [winfo rootx $w_back]
497         set Y [expr {[winfo rooty $w_back] + [winfo height $w_back]}]
498         tk_popup $m $X $Y
499 }
500
501 method _goback {i} {
502         set dat [lindex $history $i]
503         set history [lrange $history 0 [expr {$i - 1}]]
504         set commit [lindex $dat 0]
505         set path [lindex $dat 1]
506         _load $this [lrange $dat 2 5]
507 }
508
509 method _read_file {fd jump} {
510         if {$fd ne $current_fd} {
511                 catch {close $fd}
512                 return
513         }
514
515         foreach i $w_columns {$i conf -state normal}
516         while {[gets $fd line] >= 0} {
517                 regsub "\r\$" $line {} line
518                 incr total_lines
519                 lappend amov_data {}
520                 lappend asim_data {}
521
522                 if {$total_lines > 1} {
523                         foreach i $w_columns {$i insert end "\n"}
524                 }
525
526                 $w_line insert end "$total_lines" linenumber
527                 $w_file insert end "$line"
528         }
529
530         set ln_wc [expr {[string length $total_lines] + 2}]
531         if {[$w_line cget -width] < $ln_wc} {
532                 $w_line conf -width $ln_wc
533         }
534
535         foreach i $w_columns {$i conf -state disabled}
536
537         if {[eof $fd]} {
538                 close $fd
539
540                 # If we don't force Tk to update the widgets *right now*
541                 # none of our jump commands will cause a change in the UI.
542                 #
543                 update
544
545                 if {[llength $jump] == 1} {
546                         set highlight_line [lindex $jump 0]
547                         $w_file see "$highlight_line.0"
548                 } elseif {[llength $jump] == 4} {
549                         set highlight_column [lindex $jump 0]
550                         set highlight_line [lindex $jump 1]
551                         $w_file xview moveto [lindex $jump 2]
552                         $w_file yview moveto [lindex $jump 3]
553                 }
554
555                 _exec_blame $this $w_asim @asim_data \
556                         [list] \
557                         [mc "Loading copy/move tracking annotations..."]
558         }
559 } ifdeleted { catch {close $fd} }
560
561 method _exec_blame {cur_w cur_d options cur_s} {
562         lappend options --incremental --encoding=utf-8
563         if {$commit eq {}} {
564                 lappend options --contents $path
565         } else {
566                 lappend options $commit
567         }
568         lappend options -- $path
569         set fd [eval git_read --nice blame $options]
570         fconfigure $fd -blocking 0 -translation lf -encoding utf-8
571         fileevent $fd readable [cb _read_blame $fd $cur_w $cur_d]
572         set current_fd $fd
573         set blame_lines 0
574
575         $status start \
576                 $cur_s \
577                 [mc "lines annotated"]
578 }
579
580 method _read_blame {fd cur_w cur_d} {
581         upvar #0 $cur_d line_data
582         variable group_colors
583
584         if {$fd ne $current_fd} {
585                 catch {close $fd}
586                 return
587         }
588
589         $cur_w conf -state normal
590         while {[gets $fd line] >= 0} {
591                 if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
592                         cmit original_line final_line line_count]} {
593                         set r_commit     $cmit
594                         set r_orig_line  $original_line
595                         set r_final_line $final_line
596                         set r_line_count $line_count
597                 } elseif {[string match {filename *} $line]} {
598                         set file [string range $line 9 end]
599                         set n    $r_line_count
600                         set lno  $r_final_line
601                         set oln  $r_orig_line
602                         set cmit $r_commit
603
604                         if {[regexp {^0{40}$} $cmit]} {
605                                 set commit_abbr work
606                                 set commit_type curr_commit
607                         } elseif {$cmit eq $commit} {
608                                 set commit_abbr this
609                                 set commit_type curr_commit
610                         } else {
611                                 set commit_type prior_commit
612                                 set commit_abbr [string range $cmit 0 3]
613                         }
614
615                         set author_abbr {}
616                         set a_name {}
617                         catch {set a_name $header($cmit,author)}
618                         while {$a_name ne {}} {
619                                 if {$author_abbr ne {}
620                                         && [string index $a_name 0] eq {'}} {
621                                         regsub {^'[^']+'\s+} $a_name {} a_name
622                                 }
623                                 if {![regexp {^([[:upper:]])} $a_name _a]} break
624                                 append author_abbr $_a
625                                 unset _a
626                                 if {![regsub \
627                                         {^[[:upper:]][^\s]*\s+} \
628                                         $a_name {} a_name ]} break
629                         }
630                         if {$author_abbr eq {}} {
631                                 set author_abbr { |}
632                         } else {
633                                 set author_abbr [string range $author_abbr 0 3]
634                         }
635                         unset a_name
636
637                         set first_lno $lno
638                         while {
639                            $first_lno > 1
640                         && $cmit eq [lindex $line_data [expr {$first_lno - 1}] 0]
641                         && $file eq [lindex $line_data [expr {$first_lno - 1}] 1]
642                         } {
643                                 incr first_lno -1
644                         }
645
646                         set color {}
647                         if {$first_lno < $lno} {
648                                 foreach g [$w_file tag names $first_lno.0] {
649                                         if {[regexp {^color[0-9]+$} $g]} {
650                                                 set color $g
651                                                 break
652                                         }
653                                 }
654                         } else {
655                                 set i [lsort [concat \
656                                         [$w_file tag names "[expr {$first_lno - 1}].0"] \
657                                         [$w_file tag names "[expr {$lno + $n}].0"] \
658                                         ]]
659                                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
660                                         if {[lsearch -sorted -exact $i color$g] == -1} {
661                                                 set color color$g
662                                                 break
663                                         }
664                                 }
665                         }
666                         if {$color eq {}} {
667                                 set color color0
668                         }
669
670                         while {$n > 0} {
671                                 set lno_e "$lno.0 lineend + 1c"
672                                 if {[lindex $line_data $lno] ne {}} {
673                                         set g [lindex $line_data $lno 0]
674                                         foreach i $w_columns {
675                                                 $i tag remove g$g $lno.0 $lno_e
676                                         }
677                                 }
678                                 lset line_data $lno [list $cmit $file $oln]
679
680                                 $cur_w delete $lno.0 "$lno.0 lineend"
681                                 if {$lno == $first_lno} {
682                                         $cur_w insert $lno.0 $commit_abbr $commit_type
683                                 } elseif {$lno == [expr {$first_lno + 1}]} {
684                                         $cur_w insert $lno.0 $author_abbr author_abbr
685                                 } else {
686                                         $cur_w insert $lno.0 { |}
687                                 }
688
689                                 foreach i $w_columns {
690                                         if {$cur_w eq $w_amov} {
691                                                 for {set g 0} \
692                                                         {$g < [llength $group_colors]} \
693                                                         {incr g} {
694                                                         $i tag remove color$g $lno.0 $lno_e
695                                                 }
696                                                 $i tag add $color $lno.0 $lno_e
697                                         }
698                                         $i tag add g$cmit $lno.0 $lno_e
699                                 }
700
701                                 if {$highlight_column eq $cur_w} {
702                                         if {$highlight_line == -1
703                                          && [lindex [$w_file yview] 0] == 0} {
704                                                 $w_file see $lno.0
705                                                 set highlight_line $lno
706                                         }
707                                         if {$highlight_line == $lno} {
708                                                 _showcommit $this $cur_w $lno
709                                         }
710                                 }
711
712                                 incr n -1
713                                 incr lno
714                                 incr oln
715                                 incr blame_lines
716                         }
717
718                         while {
719                            $cmit eq [lindex $line_data $lno 0]
720                         && $file eq [lindex $line_data $lno 1]
721                         } {
722                                 $cur_w delete $lno.0 "$lno.0 lineend"
723
724                                 if {$lno == $first_lno} {
725                                         $cur_w insert $lno.0 $commit_abbr $commit_type
726                                 } elseif {$lno == [expr {$first_lno + 1}]} {
727                                         $cur_w insert $lno.0 $author_abbr author_abbr
728                                 } else {
729                                         $cur_w insert $lno.0 { |}
730                                 }
731
732                                 if {$cur_w eq $w_amov} {
733                                         foreach i $w_columns {
734                                                 for {set g 0} \
735                                                         {$g < [llength $group_colors]} \
736                                                         {incr g} {
737                                                         $i tag remove color$g $lno.0 $lno_e
738                                                 }
739                                                 $i tag add $color $lno.0 $lno_e
740                                         }
741                                 }
742
743                                 incr lno
744                         }
745
746                 } elseif {[regexp {^([a-z-]+) (.*)$} $line line key data]} {
747                         set header($r_commit,$key) $data
748                 }
749         }
750         $cur_w conf -state disabled
751
752         if {[eof $fd]} {
753                 close $fd
754                 if {$cur_w eq $w_asim} {
755                         # Switches for original location detection
756                         set threshold [get_config gui.copyblamethreshold]
757                         set original_options [list "-C$threshold"]
758
759                         if {![is_config_true gui.fastcopyblame]} {
760                                 # thorough copy search; insert before the threshold
761                                 set original_options [linsert $original_options 0 -C]
762                         }
763                         if {[git-version >= 1.5.3]} {
764                                 lappend original_options -w ; # ignore indentation changes
765                         }
766
767                         _exec_blame $this $w_amov @amov_data \
768                                 $original_options \
769                                 [mc "Loading original location annotations..."]
770                 } else {
771                         set current_fd {}
772                         $status stop [mc "Annotation complete."]
773                 }
774         } else {
775                 $status update $blame_lines $total_lines
776         }
777 } ifdeleted { catch {close $fd} }
778
779 method _find_commit_bound {data_list start_idx delta} {
780         upvar #0 $data_list line_data
781         set pos $start_idx
782         set limit       [expr {[llength $line_data] - 1}]
783         set base_commit [lindex $line_data $pos 0]
784
785         while {$pos > 0 && $pos < $limit} {
786                 set new_pos [expr {$pos + $delta}]
787                 if {[lindex $line_data $new_pos 0] ne $base_commit} {
788                         return $pos
789                 }
790
791                 set pos $new_pos
792         }
793
794         return $pos
795 }
796
797 method _fullcopyblame {} {
798         if {$current_fd ne {}} {
799                 tk_messageBox \
800                         -icon error \
801                         -type ok \
802                         -title [mc "Busy"] \
803                         -message [mc "Annotation process is already running."]
804
805                 return
806         }
807
808         # Switches for original location detection
809         set threshold [get_config gui.copyblamethreshold]
810         set original_options [list -C -C "-C$threshold"]
811
812         if {[git-version >= 1.5.3]} {
813                 lappend original_options -w ; # ignore indentation changes
814         }
815
816         # Find the line range
817         set pos @$::cursorX,$::cursorY
818         set lno [lindex [split [$::cursorW index $pos] .] 0]
819         set min_amov_lno [_find_commit_bound $this @amov_data $lno -1]
820         set max_amov_lno [_find_commit_bound $this @amov_data $lno 1]
821         set min_asim_lno [_find_commit_bound $this @asim_data $lno -1]
822         set max_asim_lno [_find_commit_bound $this @asim_data $lno 1]
823
824         if {$min_asim_lno < $min_amov_lno} {
825                 set min_amov_lno $min_asim_lno
826         }
827
828         if {$max_asim_lno > $max_amov_lno} {
829                 set max_amov_lno $max_asim_lno
830         }
831
832         lappend original_options -L "$min_amov_lno,$max_amov_lno"
833
834         # Clear lines
835         for {set i $min_amov_lno} {$i <= $max_amov_lno} {incr i} {
836                 lset amov_data $i [list ]
837         }
838
839         # Start the back-end process
840         _exec_blame $this $w_amov @amov_data \
841                 $original_options \
842                 [mc "Running thorough copy detection..."]
843 }
844
845 method _click {cur_w pos} {
846         set lno [lindex [split [$cur_w index $pos] .] 0]
847         _showcommit $this $cur_w $lno
848 }
849
850 method _setencoding {enc} {
851         force_path_encoding $path $enc
852         _load $this [list \
853                 $highlight_column \
854                 $highlight_line \
855                 [lindex [$w_file xview] 0] \
856                 [lindex [$w_file yview] 0] \
857                 ]
858 }
859
860 method _load_commit {cur_w cur_d pos} {
861         upvar #0 $cur_d line_data
862         set lno [lindex [split [$cur_w index $pos] .] 0]
863         set dat [lindex $line_data $lno]
864         if {$dat ne {}} {
865                 _load_new_commit $this  \
866                         [lindex $dat 0] \
867                         [lindex $dat 1] \
868                         [list [lindex $dat 2]]
869         }
870 }
871
872 method _load_new_commit {new_commit new_path jump} {
873         lappend history [list \
874                 $commit $path \
875                 $highlight_column \
876                 $highlight_line \
877                 [lindex [$w_file xview] 0] \
878                 [lindex [$w_file yview] 0] \
879                 ]
880
881         set commit $new_commit
882         set path   $new_path
883         _load $this $jump
884 }
885
886 method _showcommit {cur_w lno} {
887         global repo_config
888         variable active_color
889
890         if {$highlight_commit ne {}} {
891                 foreach i $w_columns {
892                         $i tag conf g$highlight_commit -background {}
893                         $i tag lower g$highlight_commit
894                 }
895         }
896
897         if {$cur_w eq $w_asim} {
898                 set dat [lindex $asim_data $lno]
899                 set highlight_column $w_asim
900         } else {
901                 set dat [lindex $amov_data $lno]
902                 set highlight_column $w_amov
903         }
904
905         $w_cviewer conf -state normal
906         $w_cviewer delete 0.0 end
907
908         if {$dat eq {}} {
909                 set cmit {}
910                 $w_cviewer insert end [mc "Loading annotation..."] still_loading
911         } else {
912                 set cmit [lindex $dat 0]
913                 set file [lindex $dat 1]
914
915                 foreach i $w_columns {
916                         $i tag conf g$cmit -background $active_color
917                         $i tag raise g$cmit
918                         if {$i eq $w_file} {
919                                 $w_file tag raise found
920                         }
921                         $i tag raise sel
922                 }
923
924                 set author_name {}
925                 set author_email {}
926                 set author_time {}
927                 catch {set author_name $header($cmit,author)}
928                 catch {set author_email $header($cmit,author-mail)}
929                 catch {set author_time [format_date $header($cmit,author-time)]}
930
931                 set committer_name {}
932                 set committer_email {}
933                 set committer_time {}
934                 catch {set committer_name $header($cmit,committer)}
935                 catch {set committer_email $header($cmit,committer-mail)}
936                 catch {set committer_time [format_date $header($cmit,committer-time)]}
937
938                 if {[catch {set msg $header($cmit,message)}]} {
939                         set msg {}
940                         catch {
941                                 set fd [git_read cat-file commit $cmit]
942                                 fconfigure $fd -encoding binary -translation lf
943                                 # By default commits are assumed to be in utf-8
944                                 set enc utf-8
945                                 while {[gets $fd line] > 0} {
946                                         if {[string match {encoding *} $line]} {
947                                                 set enc [string tolower [string range $line 9 end]]
948                                         }
949                                 }
950                                 set msg [read $fd]
951                                 close $fd
952
953                                 set enc [tcl_encoding $enc]
954                                 if {$enc ne {}} {
955                                         set msg [encoding convertfrom $enc $msg]
956                                 }
957                                 set msg [string trim $msg]
958                         }
959                         set header($cmit,message) $msg
960                 }
961
962                 $w_cviewer insert end "commit $cmit\n" header_key
963                 $w_cviewer insert end [strcat [mc "Author:"] "\t"] header_key
964                 $w_cviewer insert end "$author_name $author_email" header_val
965                 $w_cviewer insert end "  $author_time\n" header_val
966
967                 $w_cviewer insert end [strcat [mc "Committer:"] "\t"] header_key
968                 $w_cviewer insert end "$committer_name $committer_email" header_val
969                 $w_cviewer insert end "  $committer_time\n" header_val
970
971                 if {$file ne $path} {
972                         $w_cviewer insert end [strcat [mc "Original File:"] "\t"] header_key
973                         $w_cviewer insert end "[escape_path $file]\n" header_val
974                 }
975
976                 $w_cviewer insert end "\n$msg"
977         }
978         $w_cviewer conf -state disabled
979
980         set highlight_line $lno
981         set highlight_commit $cmit
982
983         if {[lsearch -exact $tooltip_commit $highlight_commit] != -1} {
984                 _hide_tooltip $this
985         }
986 }
987
988 method _get_click_amov_info {} {
989         set pos @$::cursorX,$::cursorY
990         set lno [lindex [split [$::cursorW index $pos] .] 0]
991         return [lindex $amov_data $lno]
992 }
993
994 method _copycommit {} {
995         set dat [_get_click_amov_info $this]
996         if {$dat ne {}} {
997                 clipboard clear
998                 clipboard append \
999                         -format STRING \
1000                         -type STRING \
1001                         -- [lindex $dat 0]
1002         }
1003 }
1004
1005 method _format_offset_date {base offset} {
1006         set exval [expr {$base + $offset*24*60*60}]
1007         return [clock format $exval -format {%Y-%m-%d}]
1008 }
1009
1010 method _gitkcommit {} {
1011         global nullid
1012
1013         set dat [_get_click_amov_info $this]
1014         if {$dat ne {}} {
1015                 set cmit [lindex $dat 0]
1016
1017                 # If the line belongs to the working copy, use HEAD instead
1018                 if {$cmit eq $nullid} {
1019                         if {[catch {set cmit [git rev-parse --verify HEAD]} err]} {
1020                                 error_popup [strcat [mc "Cannot find HEAD commit:"] "\n\n$err"]
1021                                 return;
1022                         }
1023                 }
1024
1025                 set radius [get_config gui.blamehistoryctx]
1026                 set cmdline [list --select-commit=$cmit]
1027
1028                 if {$radius > 0} {
1029                         set author_time {}
1030                         set committer_time {}
1031
1032                         catch {set author_time $header($cmit,author-time)}
1033                         catch {set committer_time $header($cmit,committer-time)}
1034
1035                         if {$committer_time eq {}} {
1036                                 set committer_time $author_time
1037                         }
1038
1039                         set after_time [_format_offset_date $this $committer_time [expr {-$radius}]]
1040                         set before_time [_format_offset_date $this $committer_time $radius]
1041
1042                         lappend cmdline --after=$after_time --before=$before_time
1043                 }
1044
1045                 lappend cmdline $cmit
1046
1047                 set base_rev "HEAD"
1048                 if {$commit ne {}} {
1049                         set base_rev $commit
1050                 }
1051
1052                 if {$base_rev ne $cmit} {
1053                         lappend cmdline $base_rev
1054                 }
1055
1056                 do_gitk $cmdline
1057         }
1058 }
1059
1060 method _blameparent {} {
1061         global nullid
1062
1063         set dat [_get_click_amov_info $this]
1064         if {$dat ne {}} {
1065                 set cmit [lindex $dat 0]
1066                 set new_path [lindex $dat 1]
1067
1068                 # Allow using Blame Parent on lines modified in the working copy
1069                 if {$cmit eq $nullid} {
1070                         set parent_ref "HEAD"
1071                 } else {
1072                         set parent_ref "$cmit^"
1073                 }
1074                 if {[catch {set cparent [git rev-parse --verify $parent_ref]} err]} {
1075                         error_popup [strcat [mc "Cannot find parent commit:"] "\n\n$err"]
1076                         return;
1077                 }
1078
1079                 _kill $this
1080
1081                 # Generate a diff between the commit and its parent,
1082                 # and use the hunks to update the line number.
1083                 # Request zero context to simplify calculations.
1084                 if {$cmit eq $nullid} {
1085                         set diffcmd [list diff-index --unified=0 $cparent -- $new_path]
1086                 } else {
1087                         set diffcmd [list diff-tree --unified=0 $cparent $cmit -- $new_path]
1088                 }
1089                 if {[catch {set fd [eval git_read $diffcmd]} err]} {
1090                         $status stop [mc "Unable to display parent"]
1091                         error_popup [strcat [mc "Error loading diff:"] "\n\n$err"]
1092                         return
1093                 }
1094
1095                 set r_orig_line [lindex $dat 2]
1096
1097                 fconfigure $fd \
1098                         -blocking 0 \
1099                         -encoding binary \
1100                         -translation binary
1101                 fileevent $fd readable [cb _read_diff_load_commit \
1102                         $fd $cparent $new_path $r_orig_line]
1103                 set current_fd $fd
1104         }
1105 }
1106
1107 method _read_diff_load_commit {fd cparent new_path tline} {
1108         if {$fd ne $current_fd} {
1109                 catch {close $fd}
1110                 return
1111         }
1112
1113         while {[gets $fd line] >= 0} {
1114                 if {[regexp {^@@ -(\d+)(,(\d+))? \+(\d+)(,(\d+))? @@} $line line \
1115                         old_line osz old_size new_line nsz new_size]} {
1116
1117                         if {$osz eq {}} { set old_size 1 }
1118                         if {$nsz eq {}} { set new_size 1 }
1119
1120                         if {$new_line <= $tline} {
1121                                 if {[expr {$new_line + $new_size}] > $tline} {
1122                                         # Target line within the hunk
1123                                         set line_shift [expr {
1124                                                 ($new_size-$old_size)*($tline-$new_line)/$new_size
1125                                                 }]
1126                                 } else {
1127                                         set line_shift [expr {$new_size-$old_size}]
1128                                 }
1129
1130                                 set r_orig_line [expr {$r_orig_line - $line_shift}]
1131                         }
1132                 }
1133         }
1134
1135         if {[eof $fd]} {
1136                 close $fd;
1137                 set current_fd {}
1138
1139                 _load_new_commit $this  \
1140                         $cparent        \
1141                         $new_path       \
1142                         [list $r_orig_line]
1143         }
1144 } ifdeleted { catch {close $fd} }
1145
1146 method _show_tooltip {cur_w pos} {
1147         if {$tooltip_wm ne {}} {
1148                 _open_tooltip $this $cur_w
1149         } elseif {$tooltip_timer eq {}} {
1150                 set tooltip_timer [after 1000 [cb _open_tooltip $cur_w]]
1151         }
1152 }
1153
1154 method _open_tooltip {cur_w} {
1155         set tooltip_timer {}
1156         set pos_x [winfo pointerx $cur_w]
1157         set pos_y [winfo pointery $cur_w]
1158         if {[winfo containing $pos_x $pos_y] ne $cur_w} {
1159                 _hide_tooltip $this
1160                 return
1161         }
1162
1163         if {$tooltip_wm ne "$cur_w.tooltip"} {
1164                 _hide_tooltip $this
1165
1166                 set tooltip_wm [toplevel $cur_w.tooltip -borderwidth 1]
1167                 wm overrideredirect $tooltip_wm 1
1168                 wm transient $tooltip_wm [winfo toplevel $cur_w]
1169                 set tooltip_t $tooltip_wm.label
1170                 text $tooltip_t \
1171                         -takefocus 0 \
1172                         -highlightthickness 0 \
1173                         -relief flat \
1174                         -borderwidth 0 \
1175                         -wrap none \
1176                         -background lightyellow \
1177                         -foreground black
1178                 $tooltip_t tag conf section_header -font font_uibold
1179                 pack $tooltip_t
1180         } else {
1181                 $tooltip_t conf -state normal
1182                 $tooltip_t delete 0.0 end
1183         }
1184
1185         set pos @[join [list \
1186                 [expr {$pos_x - [winfo rootx $cur_w]}] \
1187                 [expr {$pos_y - [winfo rooty $cur_w]}]] ,]
1188         set lno [lindex [split [$cur_w index $pos] .] 0]
1189         if {$cur_w eq $w_amov} {
1190                 set dat [lindex $amov_data $lno]
1191                 set org {}
1192         } else {
1193                 set dat [lindex $asim_data $lno]
1194                 set org [lindex $amov_data $lno]
1195         }
1196
1197         if {$dat eq {}} {
1198                 _hide_tooltip $this
1199                 return
1200         }
1201
1202         set cmit [lindex $dat 0]
1203         set tooltip_commit [list $cmit]
1204
1205         set author_name {}
1206         set summary     {}
1207         set author_time {}
1208         catch {set author_name $header($cmit,author)}
1209         catch {set summary     $header($cmit,summary)}
1210         catch {set author_time [format_date $header($cmit,author-time)]}
1211
1212         $tooltip_t insert end "commit $cmit\n"
1213         $tooltip_t insert end "$author_name  $author_time\n"
1214         $tooltip_t insert end "$summary"
1215
1216         if {$org ne {} && [lindex $org 0] ne $cmit} {
1217                 set save [$tooltip_t get 0.0 end]
1218                 $tooltip_t delete 0.0 end
1219
1220                 set cmit [lindex $org 0]
1221                 set file [lindex $org 1]
1222                 lappend tooltip_commit $cmit
1223
1224                 set author_name {}
1225                 set summary     {}
1226                 set author_time {}
1227                 catch {set author_name $header($cmit,author)}
1228                 catch {set summary     $header($cmit,summary)}
1229                 catch {set author_time [format_date $header($cmit,author-time)]}
1230
1231                 $tooltip_t insert end [strcat [mc "Originally By:"] "\n"] section_header
1232                 $tooltip_t insert end "commit $cmit\n"
1233                 $tooltip_t insert end "$author_name  $author_time\n"
1234                 $tooltip_t insert end "$summary\n"
1235
1236                 if {$file ne $path} {
1237                         $tooltip_t insert end [strcat [mc "In File:"] " "] section_header
1238                         $tooltip_t insert end "$file\n"
1239                 }
1240
1241                 $tooltip_t insert end "\n"
1242                 $tooltip_t insert end [strcat [mc "Copied Or Moved Here By:"] "\n"] section_header
1243                 $tooltip_t insert end $save
1244         }
1245
1246         $tooltip_t conf -state disabled
1247         _position_tooltip $this
1248 }
1249
1250 method _position_tooltip {} {
1251         set max_h [lindex [split [$tooltip_t index end] .] 0]
1252         set max_w 0
1253         for {set i 1} {$i <= $max_h} {incr i} {
1254                 set c [lindex [split [$tooltip_t index "$i.0 lineend"] .] 1]
1255                 if {$c > $max_w} {set max_w $c}
1256         }
1257         $tooltip_t conf -width $max_w -height $max_h
1258
1259         set req_w [winfo reqwidth  $tooltip_t]
1260         set req_h [winfo reqheight $tooltip_t]
1261         set pos_x [expr {[winfo pointerx .] +  5}]
1262         set pos_y [expr {[winfo pointery .] + 10}]
1263
1264         set g "${req_w}x${req_h}"
1265         if {$pos_x >= 0} {append g +}
1266         append g $pos_x
1267         if {$pos_y >= 0} {append g +}
1268         append g $pos_y
1269
1270         wm geometry $tooltip_wm $g
1271         raise $tooltip_wm
1272 }
1273
1274 method _hide_tooltip {} {
1275         if {$tooltip_wm ne {}} {
1276                 destroy $tooltip_wm
1277                 set tooltip_wm {}
1278                 set tooltip_commit {}
1279         }
1280         if {$tooltip_timer ne {}} {
1281                 after cancel $tooltip_timer
1282                 set tooltip_timer {}
1283         }
1284 }
1285
1286 method _resize {new_height} {
1287         set diff [expr {$new_height - $old_height}]
1288         if {$diff == 0} return
1289
1290         set my [expr {[winfo height $w.file_pane] - 25}]
1291         set o [$w.file_pane sash coord 0]
1292         set ox [lindex $o 0]
1293         set oy [expr {[lindex $o 1] + $diff}]
1294         if {$oy < 0}   {set oy 0}
1295         if {$oy > $my} {set oy $my}
1296         $w.file_pane sash place 0 $ox $oy
1297
1298         set old_height $new_height
1299 }
1300
1301 }