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git-gui: Show author initials in blame groups
[git/gitweb.git] / lib / blame.tcl
blob02e439cbc6a2c6aec238d1eb656ce26c594cbb3f
1 # git-gui blame viewer
2 # Copyright (C) 2006, 2007 Shawn Pearce
3
4 class blame {
5
6 field commit ; # input commit to blame
7 field path ; # input filename to view in $commit
8
9 field w
10 field w_line
11 field w_cgrp
12 field w_load
13 field w_file
14 field w_cmit
15 field status
16
17 field highlight_line -1 ; # current line selected
18 field highlight_commit {} ; # sha1 of commit selected
19
20 field total_lines 0 ; # total length of file
21 field blame_lines 0 ; # number of lines computed
22 field commit_count 0 ; # number of commits in $commit_list
23 field commit_list {} ; # list of commit sha1 in receipt order
24 field order ; # array commit -> receipt order
25 field header ; # array commit,key -> header field
26 field line_commit ; # array line -> sha1 commit
27 field line_file ; # array line -> file name
28
29 field r_commit ; # commit currently being parsed
30 field r_orig_line ; # original line number
31 field r_final_line ; # final line number
32 field r_line_count ; # lines in this region
33
34 field tooltip_wm {} ; # Current tooltip toplevel, if open
35 field tooltip_timer {} ; # Current timer event for our tooltip
36 field tooltip_commit {} ; # Commit in tooltip
37 field tooltip_text {} ; # Text in current tooltip
38
39 variable active_color #98e1a0
40 variable group_colors {
41 #cbcbcb
42 #e1e1e1
43 }
44
45 constructor new {i_commit i_path} {
46 variable active_color
47 global cursor_ptr
48
49 set commit $i_commit
50 set path $i_path
51
52 make_toplevel top w
53 wm title $top "[appname] ([reponame]): File Viewer"
54 set status "Loading $commit:$path..."
55
56 label $w.path -text "$commit:$path" \
57 -anchor w \
58 -justify left \
59 -borderwidth 1 \
60 -relief sunken \
61 -font font_uibold
62 pack $w.path -side top -fill x
63
64 frame $w.out
65 set w_load $w.out.loaded_t
66 text $w_load \
67 -background white -borderwidth 0 \
68 -state disabled \
69 -wrap none \
70 -height 40 \
71 -width 1 \
72 -font font_diff
73 $w_load tag conf annotated -background grey
74
75 set w_line $w.out.linenumber_t
76 text $w_line \
77 -background white -borderwidth 0 \
78 -state disabled \
79 -wrap none \
80 -height 40 \
81 -width 5 \
82 -font font_diff
83 $w_line tag conf linenumber -justify right
84
85 set w_cgrp $w.out.commit_t
86 text $w_cgrp \
87 -background white -borderwidth 0 \
88 -state disabled \
89 -wrap none \
90 -height 40 \
91 -width 4 \
92 -font font_diff
93
94 set w_file $w.out.file_t
95 text $w_file \
96 -background white -borderwidth 0 \
97 -state disabled \
98 -wrap none \
99 -height 40 \
100 -width 80 \
101 -xscrollcommand [list $w.out.sbx set] \
102 -font font_diff
103
104 scrollbar $w.out.sbx -orient h -command [list $w_file xview]
105 scrollbar $w.out.sby -orient v \
106 -command [list scrollbar2many [list \
107 $w_load \
108 $w_line \
109 $w_cgrp \
110 $w_file \
111 ] yview]
112 grid \
113 $w_cgrp \
114 $w_line \
115 $w_load \
116 $w_file \
117 $w.out.sby \
118 -sticky nsew
119 grid conf $w.out.sbx -column 3 -sticky we
120 grid columnconfigure $w.out 3 -weight 1
121 grid rowconfigure $w.out 0 -weight 1
122 pack $w.out -fill both -expand 1
123
124 label $w.status \
125 -textvariable @status \
126 -anchor w \
127 -justify left \
128 -borderwidth 1 \
129 -relief sunken
130 pack $w.status -side bottom -fill x
131
132 frame $w.cm
133 set w_cmit $w.cm.t
134 text $w_cmit \
135 -background white -borderwidth 0 \
136 -state disabled \
137 -wrap none \
138 -height 10 \
139 -width 80 \
140 -xscrollcommand [list $w.cm.sbx set] \
141 -yscrollcommand [list $w.cm.sby set] \
142 -font font_diff
143 $w_cmit tag conf header_key \
144 -tabs {3c} \
145 -background $active_color \
146 -font font_uibold
147 $w_cmit tag conf header_val \
148 -background $active_color \
149 -font font_ui
150 $w_cmit tag raise sel
151 scrollbar $w.cm.sbx -orient h -command [list $w_cmit xview]
152 scrollbar $w.cm.sby -orient v -command [list $w_cmit yview]
153 pack $w.cm.sby -side right -fill y
154 pack $w.cm.sbx -side bottom -fill x
155 pack $w_cmit -expand 1 -fill both
156 pack $w.cm -side bottom -fill x
157
158 menu $w.ctxm -tearoff 0
159 $w.ctxm add command \
160 -label "Copy Commit" \
161 -command [cb _copycommit]
162
163 foreach i [list \
164 $w_cgrp \
165 $w_load \
166 $w_line \
167 $w_file] {
168 $i conf -cursor $cursor_ptr
169 $i conf -yscrollcommand \
170 [list many2scrollbar [list \
171 $w_cgrp \
172 $w_load \
173 $w_line \
174 $w_file \
175 ] yview $w.out.sby]
176 bind $i <Button-1> "
177 [cb _hide_tooltip]
178 [cb _click $i @%x,%y]
179 focus $i
180 "
181 bind $i <Any-Motion> [cb _show_tooltip $i @%x,%y]
182 bind $i <Any-Enter> [cb _hide_tooltip]
183 bind $i <Any-Leave> [cb _hide_tooltip]
184 bind_button3 $i "
185 [cb _hide_tooltip]
186 set cursorX %x
187 set cursorY %y
188 set cursorW %W
189 tk_popup $w.ctxm %X %Y
190 "
191 }
192
193 foreach i [list \
194 $w_cgrp \
195 $w_load \
196 $w_line \
197 $w_file \
198 $w_cmit] {
199 bind $i <Key-Up> {catch {%W yview scroll -1 units};break}
200 bind $i <Key-Down> {catch {%W yview scroll 1 units};break}
201 bind $i <Key-Left> {catch {%W xview scroll -1 units};break}
202 bind $i <Key-Right> {catch {%W xview scroll 1 units};break}
203 bind $i <Key-k> {catch {%W yview scroll -1 units};break}
204 bind $i <Key-j> {catch {%W yview scroll 1 units};break}
205 bind $i <Key-h> {catch {%W xview scroll -1 units};break}
206 bind $i <Key-l> {catch {%W xview scroll 1 units};break}
207 bind $i <Control-Key-b> {catch {%W yview scroll -1 pages};break}
208 bind $i <Control-Key-f> {catch {%W yview scroll 1 pages};break}
209 }
210
211 bind $w_cmit <Button-1> [list focus $w_cmit]
212 bind $top <Visibility> [list focus $top]
213 bind $top <Destroy> [list delete_this $this]
214
215 if {$commit eq {}} {
216 set fd [open $path r]
217 } else {
218 set cmd [list git cat-file blob "$commit:$path"]
219 set fd [open "| $cmd" r]
220 }
221 fconfigure $fd -blocking 0 -translation lf -encoding binary
222 fileevent $fd readable [cb _read_file $fd]
223 }
224
225 method _read_file {fd} {
226 $w_load conf -state normal
227 $w_cgrp conf -state normal
228 $w_line conf -state normal
229 $w_file conf -state normal
230 while {[gets $fd line] >= 0} {
231 regsub "\r\$" $line {} line
232 incr total_lines
233
234 if {$total_lines > 1} {
235 $w_load insert end "\n"
236 $w_cgrp insert end "\n"
237 $w_line insert end "\n"
238 $w_file insert end "\n"
239 }
240
241 $w_line insert end "$total_lines" linenumber
242 $w_file insert end "$line"
243 }
244 $w_load conf -state disabled
245 $w_cgrp conf -state disabled
246 $w_line conf -state disabled
247 $w_file conf -state disabled
248
249 if {[eof $fd]} {
250 close $fd
251 _status $this
252 set cmd [list git blame -M -C --incremental]
253 if {$commit eq {}} {
254 lappend cmd --contents $path
255 } else {
256 lappend cmd $commit
257 }
258 lappend cmd -- $path
259 set fd [open "| $cmd" r]
260 fconfigure $fd -blocking 0 -translation lf -encoding binary
261 fileevent $fd readable [cb _read_blame $fd]
262 }
263 } ifdeleted { catch {close $fd} }
264
265 method _read_blame {fd} {
266 variable group_colors
267
268 $w_cgrp conf -state normal
269 while {[gets $fd line] >= 0} {
270 if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
271 cmit original_line final_line line_count]} {
272 set r_commit $cmit
273 set r_orig_line $original_line
274 set r_final_line $final_line
275 set r_line_count $line_count
276
277 if {[catch {set g $order($cmit)}]} {
278 set bg [lindex $group_colors 0]
279 set group_colors [lrange $group_colors 1 end]
280 lappend group_colors $bg
281
282 $w_cgrp tag conf g$cmit -background $bg
283 $w_line tag conf g$cmit -background $bg
284 $w_file tag conf g$cmit -background $bg
285
286 set order($cmit) $commit_count
287 incr commit_count
288 lappend commit_list $cmit
289 }
290 } elseif {[string match {filename *} $line]} {
291 set file [string range $line 9 end]
292 set n $r_line_count
293 set lno $r_final_line
294 set cmit $r_commit
295
296 if {[regexp {^0{40}$} $cmit]} {
297 set commit_abbr work
298 } else {
299 set commit_abbr [string range $cmit 0 4]
300 }
301
302 set author_abbr {}
303 set a_name {}
304 catch {set a_name $header($cmit,author)}
305 while {$a_name ne {}} {
306 if {![regexp {^([[:upper:]])} $a_name _a]} break
307 append author_abbr $_a
308 unset _a
309 if {![regsub \
310 {^[[:upper:]][^\s]*\s+} \
311 $a_name {} a_name ]} break
312 }
313 if {$author_abbr eq {}} {
314 set author_abbr { |}
315 } else {
316 set author_abbr [string range $author_abbr 0 3]
317 while {[string length $author_abbr] < 4} {
318 set author_abbr " $author_abbr"
319 }
320 }
321 unset a_name
322
323 set first_lno $lno
324 while {
325 ![catch {set ncmit $line_commit([expr {$first_lno - 1}])}]
326 && $ncmit eq $cmit
327 } {
328 incr first_lno -1
329 }
330
331 while {$n > 0} {
332 set lno_e "$lno.0 lineend + 1c"
333 if {[catch {set g g$line_commit($lno)}]} {
334 $w_load tag add annotated $lno.0 $lno_e
335 } else {
336 $w_cgrp tag remove g$g $lno.0 $lno_e
337 $w_line tag remove g$g $lno.0 $lno_e
338 $w_file tag remove g$g $lno.0 $lno_e
339
340 $w_cgrp tag remove a$g $lno.0 $lno_e
341 $w_line tag remove a$g $lno.0 $lno_e
342 $w_file tag remove a$g $lno.0 $lno_e
343 }
344
345 set line_commit($lno) $cmit
346 set line_file($lno) $file
347
348 $w_cgrp delete $lno.0 "$lno.0 lineend"
349 if {$lno == $first_lno} {
350 $w_cgrp insert $lno.0 $commit_abbr
351 } elseif {$lno == [expr {$first_lno + 1}]} {
352 $w_cgrp insert $lno.0 $author_abbr
353 } else {
354 $w_cgrp insert $lno.0 { |}
355 }
356
357 $w_cgrp tag add g$cmit $lno.0 $lno_e
358 $w_line tag add g$cmit $lno.0 $lno_e
359 $w_file tag add g$cmit $lno.0 $lno_e
360
361 $w_cgrp tag add a$cmit $lno.0 $lno_e
362 $w_line tag add a$cmit $lno.0 $lno_e
363 $w_file tag add a$cmit $lno.0 $lno_e
364
365 if {$highlight_line == -1} {
366 if {[lindex [$w_file yview] 0] == 0} {
367 $w_file see $lno.0
368 _showcommit $this $lno
369 }
370 } elseif {$highlight_line == $lno} {
371 _showcommit $this $lno
372 }
373
374 incr n -1
375 incr lno
376 incr blame_lines
377 }
378
379 while {![catch {set ncmit $line_commit($lno)}]
380 && $ncmit eq $cmit} {
381 $w_cgrp delete $lno.0 "$lno.0 lineend"
382
383 if {$lno == $first_lno} {
384 $w_cgrp insert $lno.0 $commit_abbr
385 } elseif {$lno == [expr {$first_lno + 1}]} {
386 $w_cgrp insert $lno.0 $author_abbr
387 } else {
388 $w_cgrp insert $lno.0 { |}
389 }
390 incr lno
391 }
392
393 } elseif {[regexp {^([a-z-]+) (.*)$} $line line key data]} {
394 set header($r_commit,$key) $data
395 }
396 }
397 $w_cgrp conf -state disabled
398
399 if {[eof $fd]} {
400 close $fd
401 set status {Annotation complete.}
402 } else {
403 _status $this
404 }
405 } ifdeleted { catch {close $fd} }
406
407 method _status {} {
408 set have $blame_lines
409 set total $total_lines
410 set pdone 0
411 if {$total} {set pdone [expr {100 * $have / $total}]}
412
413 set status [format \
414 "Loading annotations... %i of %i lines annotated (%2i%%)" \
415 $have $total $pdone]
416 }
417
418 method _click {cur_w pos} {
419 set lno [lindex [split [$cur_w index $pos] .] 0]
420 if {$lno eq {}} return
421 _showcommit $this $lno
422 }
423
424 method _showcommit {lno} {
425 global repo_config
426 variable active_color
427
428 if {$highlight_commit ne {}} {
429 set cmit $highlight_commit
430 $w_cgrp tag conf a$cmit -background {}
431 $w_line tag conf a$cmit -background {}
432 $w_file tag conf a$cmit -background {}
433 }
434
435 $w_cmit conf -state normal
436 $w_cmit delete 0.0 end
437 if {[catch {set cmit $line_commit($lno)}]} {
438 set cmit {}
439 $w_cmit insert end "Loading annotation..."
440 } else {
441 $w_cgrp tag conf a$cmit -background $active_color
442 $w_line tag conf a$cmit -background $active_color
443 $w_file tag conf a$cmit -background $active_color
444
445 set author_name {}
446 set author_email {}
447 set author_time {}
448 catch {set author_name $header($cmit,author)}
449 catch {set author_email $header($cmit,author-mail)}
450 catch {set author_time [clock format \
451 $header($cmit,author-time) \
452 -format {%Y-%m-%d %H:%M:%S}
453 ]}
454
455 set committer_name {}
456 set committer_email {}
457 set committer_time {}
458 catch {set committer_name $header($cmit,committer)}
459 catch {set committer_email $header($cmit,committer-mail)}
460 catch {set committer_time [clock format \
461 $header($cmit,committer-time) \
462 -format {%Y-%m-%d %H:%M:%S}
463 ]}
464
465 if {[catch {set msg $header($cmit,message)}]} {
466 set msg {}
467 catch {
468 set fd [open "| git cat-file commit $cmit" r]
469 fconfigure $fd -encoding binary -translation lf
470 if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
471 set enc utf-8
472 }
473 while {[gets $fd line] > 0} {
474 if {[string match {encoding *} $line]} {
475 set enc [string tolower [string range $line 9 end]]
476 }
477 }
478 set msg [encoding convertfrom $enc [read $fd]]
479 set msg [string trim $msg]
480 close $fd
481
482 set author_name [encoding convertfrom $enc $author_name]
483 set committer_name [encoding convertfrom $enc $committer_name]
484
485 set header($cmit,author) $author_name
486 set header($cmit,committer) $committer_name
487 }
488 set header($cmit,message) $msg
489 }
490
491 $w_cmit insert end "commit $cmit\n" header_key
492 $w_cmit insert end "Author:\t" header_key
493 $w_cmit insert end "$author_name $author_email" header_val
494 $w_cmit insert end "$author_time\n" header_val
495
496 $w_cmit insert end "Committer:\t" header_key
497 $w_cmit insert end "$committer_name $committer_email" header_val
498 $w_cmit insert end "$committer_time\n" header_val
499
500 if {$line_file($lno) ne $path} {
501 $w_cmit insert end "Original File:\t" header_key
502 $w_cmit insert end "[escape_path $line_file($lno)]\n" header_val
503 }
504
505 $w_cmit insert end "\n$msg"
506 }
507 $w_cmit conf -state disabled
508
509 set highlight_line $lno
510 set highlight_commit $cmit
511
512 if {$highlight_commit eq $tooltip_commit} {
513 _hide_tooltip $this
514 }
515 }
516
517 method _copycommit {} {
518 set pos @$::cursorX,$::cursorY
519 set lno [lindex [split [$::cursorW index $pos] .] 0]
520 if {![catch {set commit $line_commit($lno)}]} {
521 clipboard clear
522 clipboard append \
523 -format STRING \
524 -type STRING \
525 -- $commit
526 }
527 }
528
529 method _show_tooltip {cur_w pos} {
530 set lno [lindex [split [$cur_w index $pos] .] 0]
531 if {[catch {set cmit $line_commit($lno)}]} {
532 _hide_tooltip $this
533 return
534 }
535
536 if {$cmit eq $highlight_commit} {
537 _hide_tooltip $this
538 return
539 }
540
541 if {$cmit eq $tooltip_commit} {
542 _position_tooltip $this
543 } elseif {$tooltip_wm ne {}} {
544 _open_tooltip $this $cur_w
545 } elseif {$tooltip_timer eq {}} {
546 set tooltip_timer [after 1000 [cb _open_tooltip $cur_w]]
547 }
548 }
549
550 method _open_tooltip {cur_w} {
551 set tooltip_timer {}
552 set pos_x [winfo pointerx $cur_w]
553 set pos_y [winfo pointery $cur_w]
554 if {[winfo containing $pos_x $pos_y] ne $cur_w} {
555 _hide_tooltip $this
556 return
557 }
558
559 set pos @[join [list \
560 [expr {$pos_x - [winfo rootx $cur_w]}] \
561 [expr {$pos_y - [winfo rooty $cur_w]}]] ,]
562 set lno [lindex [split [$cur_w index $pos] .] 0]
563 set cmit $line_commit($lno)
564
565 set author_name {}
566 set author_email {}
567 set author_time {}
568 catch {set author_name $header($cmit,author)}
569 catch {set author_email $header($cmit,author-mail)}
570 catch {set author_time [clock format \
571 $header($cmit,author-time) \
572 -format {%Y-%m-%d %H:%M:%S}
573 ]}
574
575 set committer_name {}
576 set committer_email {}
577 set committer_time {}
578 catch {set committer_name $header($cmit,committer)}
579 catch {set committer_email $header($cmit,committer-mail)}
580 catch {set committer_time [clock format \
581 $header($cmit,committer-time) \
582 -format {%Y-%m-%d %H:%M:%S}
583 ]}
584
585 set summary {}
586 catch {set summary $header($cmit,summary)}
587
588 set tooltip_commit $cmit
589 set tooltip_text "commit $cmit
590 $author_name $author_email $author_time
591 $summary"
592
593 if {$tooltip_wm ne "$cur_w.tooltip"} {
594 _hide_tooltip $this
595
596 set tooltip_wm [toplevel $cur_w.tooltip -borderwidth 1]
597 wm overrideredirect $tooltip_wm 1
598 wm transient $tooltip_wm [winfo toplevel $cur_w]
599 pack [label $tooltip_wm.label \
600 -background lightyellow \
601 -foreground black \
602 -textvariable @tooltip_text \
603 -justify left]
604 }
605 _position_tooltip $this
606 }
607
608 method _position_tooltip {} {
609 set req_w [winfo reqwidth $tooltip_wm.label]
610 set req_h [winfo reqheight $tooltip_wm.label]
611 set pos_x [expr {[winfo pointerx .] + 5}]
612 set pos_y [expr {[winfo pointery .] + 10}]
613
614 set g "${req_w}x${req_h}"
615 if {$pos_x >= 0} {append g +}
616 append g $pos_x
617 if {$pos_y >= 0} {append g +}
618 append g $pos_y
619
620 wm geometry $tooltip_wm $g
621 raise $tooltip_wm
622 }
623
624 method _hide_tooltip {} {
625 if {$tooltip_wm ne {}} {
626 destroy $tooltip_wm
627 set tooltip_wm {}
628 set tooltip_commit {}
629 }
630 if {$tooltip_timer ne {}} {
631 after cancel $tooltip_timer
632 set tooltip_timer {}
633 }
634 }
635
636 }
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