summaryrefslogtreecommitdiff
path: root/lib/blame.tcl
blob: a6f0b4ab18752fbd7efbd350cd117d40bd667500 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
# git-gui blame viewer
# Copyright (C) 2006, 2007 Shawn Pearce
 
class blame {
 
field commit  ; # input commit to blame
field path    ; # input filename to view in $commit
 
field w
field w_line
field w_cgrp
field w_load
field w_file
field w_cmit
field status
 
field highlight_line   -1 ; # current line selected
field highlight_commit {} ; # sha1 of commit selected
 
field total_lines       0  ; # total length of file
field blame_lines       0  ; # number of lines computed
field commit_count      0  ; # number of commits in $commit_list
field commit_list      {}  ; # list of commit sha1 in receipt order
field order                ; # array commit -> receipt order
field header               ; # array commit,key -> header field
field line_commit          ; # array line -> sha1 commit
field line_file            ; # array line -> file name
 
field r_commit      ; # commit currently being parsed
field r_orig_line   ; # original line number
field r_final_line  ; # final line number
field r_line_count  ; # lines in this region
 
constructor new {i_commit i_path} {
	set commit $i_commit
	set path   $i_path
 
	make_toplevel top w
	wm title $top "[appname] ([reponame]): File Viewer"
	set status "Loading $commit:$path..."
 
	label $w.path -text "$commit:$path" \
		-anchor w \
		-justify left \
		-borderwidth 1 \
		-relief sunken \
		-font font_uibold
	pack $w.path -side top -fill x
 
	frame $w.out
	set w_load $w.out.loaded_t
	text $w_load \
		-background white -borderwidth 0 \
		-state disabled \
		-wrap none \
		-height 40 \
		-width 1 \
		-font font_diff
	$w_load tag conf annotated -background grey
 
	set w_line $w.out.linenumber_t
	text $w_line \
		-background white -borderwidth 0 \
		-state disabled \
		-wrap none \
		-height 40 \
		-width 5 \
		-font font_diff
	$w_line tag conf linenumber -justify right
 
	set w_cgrp $w.out.commit_t
	text $w_cgrp \
		-background white -borderwidth 0 \
		-state disabled \
		-wrap none \
		-height 40 \
		-width 4 \
		-font font_diff
 
	set w_file $w.out.file_t
	text $w_file \
		-background white -borderwidth 0 \
		-state disabled \
		-wrap none \
		-height 40 \
		-width 80 \
		-xscrollcommand [list $w.out.sbx set] \
		-font font_diff
 
	scrollbar $w.out.sbx -orient h -command [list $w_file xview]
	scrollbar $w.out.sby -orient v \
		-command [list scrollbar2many [list \
		$w_load \
		$w_line \
		$w_cgrp \
		$w_file \
		] yview]
	grid \
		$w_cgrp \
		$w_line \
		$w_load \
		$w_file \
		$w.out.sby \
		-sticky nsew
	grid conf $w.out.sbx -column 3 -sticky we
	grid columnconfigure $w.out 3 -weight 1
	grid rowconfigure $w.out 0 -weight 1
	pack $w.out -fill both -expand 1
 
	label $w.status \
		-textvariable @status \
		-anchor w \
		-justify left \
		-borderwidth 1 \
		-relief sunken
	pack $w.status -side bottom -fill x
 
	frame $w.cm
	set w_cmit $w.cm.t
	text $w_cmit \
		-background white -borderwidth 0 \
		-state disabled \
		-wrap none \
		-height 10 \
		-width 80 \
		-xscrollcommand [list $w.cm.sbx set] \
		-yscrollcommand [list $w.cm.sby set] \
		-font font_diff
	scrollbar $w.cm.sbx -orient h -command [list $w_cmit xview]
	scrollbar $w.cm.sby -orient v -command [list $w_cmit yview]
	pack $w.cm.sby -side right -fill y
	pack $w.cm.sbx -side bottom -fill x
	pack $w_cmit -expand 1 -fill both
	pack $w.cm -side bottom -fill x
 
	menu $w.ctxm -tearoff 0
	$w.ctxm add command \
		-label "Copy Commit" \
		-command [cb _copycommit]
 
	foreach i [list \
		$w_cgrp \
		$w_load \
		$w_line \
		$w_file] {
		$i tag conf in_sel \
			-background [$i cget -foreground] \
			-foreground [$i cget -background]
		$i conf -yscrollcommand \
			[list many2scrollbar [list \
			$w_cgrp \
			$w_load \
			$w_line \
			$w_file \
			] yview $w.out.sby]
		bind $i <Button-1> "[cb _click $i @%x,%y]; focus $i"
		bind_button3 $i "
			set cursorX %x
			set cursorY %y
			set cursorW %W
			tk_popup $w.ctxm %X %Y
		"
	}
 
	foreach i [list \
		$w_cgrp \
		$w_load \
		$w_line \
		$w_file \
		$w_cmit] {
		bind $i <Key-Up>        {catch {%W yview scroll -1 units};break}
		bind $i <Key-Down>      {catch {%W yview scroll  1 units};break}
		bind $i <Key-Left>      {catch {%W xview scroll -1 units};break}
		bind $i <Key-Right>     {catch {%W xview scroll  1 units};break}
		bind $i <Key-k>         {catch {%W yview scroll -1 units};break}
		bind $i <Key-j>         {catch {%W yview scroll  1 units};break}
		bind $i <Key-h>         {catch {%W xview scroll -1 units};break}
		bind $i <Key-l>         {catch {%W xview scroll  1 units};break}
		bind $i <Control-Key-b> {catch {%W yview scroll -1 pages};break}
		bind $i <Control-Key-f> {catch {%W yview scroll  1 pages};break}
	}
 
	bind $w_cmit <Button-1> [list focus $w_cmit]
	bind $top <Visibility> [list focus $top]
	bind $top <Destroy> [list delete_this $this]
 
	if {$commit eq {}} {
		set fd [open $path r]
	} else {
		set cmd [list git cat-file blob "$commit:$path"]
		set fd [open "| $cmd" r]
	}
	fconfigure $fd -blocking 0 -translation lf -encoding binary
	fileevent $fd readable [cb _read_file $fd]
}
 
method _read_file {fd} {
	$w_load conf -state normal
	$w_cgrp conf -state normal
	$w_line conf -state normal
	$w_file conf -state normal
	while {[gets $fd line] >= 0} {
		regsub "\r\$" $line {} line
		incr total_lines
 
		if {$total_lines > 1} {
			$w_load insert end "\n"
			$w_cgrp insert end "\n"
			$w_line insert end "\n"
			$w_file insert end "\n"
		}
 
		$w_line insert end "$total_lines" linenumber
		$w_file insert end "$line"
	}
	$w_load conf -state disabled
	$w_cgrp conf -state disabled
	$w_line conf -state disabled
	$w_file conf -state disabled
 
	if {[eof $fd]} {
		close $fd
		_status $this
		set cmd [list git blame -M -C --incremental]
		if {$commit eq {}} {
			lappend cmd --contents $path
		} else {
			lappend cmd $commit
		}
		lappend cmd -- $path
		set fd [open "| $cmd" r]
		fconfigure $fd -blocking 0 -translation lf -encoding binary
		fileevent $fd readable [cb _read_blame $fd]
	}
} ifdeleted { catch {close $fd} }
 
method _read_blame {fd} {
	$w_cgrp conf -state normal
	while {[gets $fd line] >= 0} {
		if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
			cmit original_line final_line line_count]} {
			set r_commit     $cmit
			set r_orig_line  $original_line
			set r_final_line $final_line
			set r_line_count $line_count
 
			if {[catch {set g $order($cmit)}]} {
				$w_cgrp tag conf g$cmit
				$w_line tag conf g$cmit
				$w_file tag conf g$cmit
 
				$w_cgrp tag raise in_sel
				$w_line tag raise in_sel
				$w_file tag raise in_sel
 
				$w_file tag raise sel
				set order($cmit) $commit_count
				incr commit_count
				lappend commit_list $cmit
			}
		} elseif {[string match {filename *} $line]} {
			set file [string range $line 9 end]
			set n    $r_line_count
			set lno  $r_final_line
			set cmit $r_commit
			set abbr [string range $cmit 0 4]
 
			while {$n > 0} {
				set lno_e "$lno.0 lineend + 1c"
				if {[catch {set g g$line_commit($lno)}]} {
					$w_load tag add annotated $lno.0 $lno_e
				} else {
					$w_cgrp tag remove g$g $lno.0 $lno_e
					$w_line tag remove g$g $lno.0 $lno_e
					$w_file tag remove g$g $lno.0 $lno_e
				}
 
				set line_commit($lno) $cmit
				set line_file($lno)   $file
 
				$w_cgrp delete $lno.0 $lno_e
				$w_cgrp insert $lno.0 "$abbr\n"
 
				$w_cgrp tag add g$cmit $lno.0 $lno_e
				$w_line tag add g$cmit $lno.0 $lno_e
				$w_file tag add g$cmit $lno.0 $lno_e
 
				if {$highlight_line == -1} {
					if {[lindex [$w_file yview] 0] == 0} {
						$w_file see $lno.0
						_showcommit $this $lno
					}
				} elseif {$highlight_line == $lno} {
					_showcommit $this $lno
				}
 
				incr n -1
				incr lno
				incr blame_lines
			}
 
			set hc $highlight_commit
			if {$hc ne {}
				&& [expr {$order($hc) + 1}] == $order($cmit)} {
				_showcommit $this $highlight_line
			}
		} elseif {[regexp {^([a-z-]+) (.*)$} $line line key data]} {
			set header($r_commit,$key) $data
		}
	}
	$w_cgrp conf -state disabled
 
	if {[eof $fd]} {
		close $fd
		set status {Annotation complete.}
	} else {
		_status $this
	}
} ifdeleted { catch {close $fd} }
 
method _status {} {
	set have  $blame_lines
	set total $total_lines
	set pdone 0
	if {$total} {set pdone [expr {100 * $have / $total}]}
 
	set status [format \
		"Loading annotations... %i of %i lines annotated (%2i%%)" \
		$have $total $pdone]
}
 
method _click {cur_w pos} {
	set lno [lindex [split [$cur_w index $pos] .] 0]
	if {$lno eq {}} return
 
	set lno_e "$lno.0 + 1 line"
 
	$w_cgrp tag remove in_sel 0.0 end
	$w_line tag remove in_sel 0.0 end
	$w_file tag remove in_sel 0.0 end
 
	$w_cgrp tag add in_sel $lno.0 $lno_e
	$w_line tag add in_sel $lno.0 $lno_e
	$w_file tag add in_sel $lno.0 $lno_e
 
	_showcommit $this $lno
}
 
variable blame_colors {
	#ff4040
	#ff40ff
	#4040ff
}
 
method _showcommit {lno} {
	global repo_config
	variable blame_colors
 
	if {$highlight_commit ne {}} {
		set idx $order($highlight_commit)
		set i 0
		foreach c $blame_colors {
			set h [lindex $commit_list [expr {$idx - 1 + $i}]]
			$w_cgrp tag conf g$h -background white
			$w_line tag conf g$h -background white
			$w_file tag conf g$h -background white
			incr i
		}
	}
 
	$w_cmit conf -state normal
	$w_cmit delete 0.0 end
	if {[catch {set cmit $line_commit($lno)}]} {
		set cmit {}
		$w_cmit insert end "Loading annotation..."
	} else {
		set idx $order($cmit)
		set i 0
		foreach c $blame_colors {
			set h [lindex $commit_list [expr {$idx - 1 + $i}]]
			$w_cgrp tag conf g$h -background $c
			$w_line tag conf g$h -background $c
			$w_file tag conf g$h -background $c
			incr i
		}
 
		set author_name {}
		set author_email {}
		set author_time {}
		catch {set author_name $header($cmit,author)}
		catch {set author_email $header($cmit,author-mail)}
		catch {set author_time [clock format \
			$header($cmit,author-time) \
			-format {%Y-%m-%d %H:%M:%S}
		]}
 
		set committer_name {}
		set committer_email {}
		set committer_time {}
		catch {set committer_name $header($cmit,committer)}
		catch {set committer_email $header($cmit,committer-mail)}
		catch {set committer_time [clock format \
			$header($cmit,committer-time) \
			-format {%Y-%m-%d %H:%M:%S}
		]}
 
		if {[catch {set msg $header($cmit,message)}]} {
			set msg {}
			catch {
				set fd [open "| git cat-file commit $cmit" r]
				fconfigure $fd -encoding binary -translation lf
				if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
					set enc utf-8
				}
				while {[gets $fd line] > 0} {
					if {[string match {encoding *} $line]} {
						set enc [string tolower [string range $line 9 end]]
					}
				}
				set msg [encoding convertfrom $enc [read $fd]]
				set msg [string trim $msg]
				close $fd
 
				set author_name [encoding convertfrom $enc $author_name]
				set committer_name [encoding convertfrom $enc $committer_name]
 
				set header($cmit,author) $author_name
				set header($cmit,committer) $committer_name
			}
			set header($cmit,message) $msg
		}
 
		$w_cmit insert end "commit $cmit
Author: $author_name $author_email  $author_time
Committer: $committer_name $committer_email  $committer_time
Original File: [escape_path $line_file($lno)]
 
$msg"
	}
	$w_cmit conf -state disabled
 
	set highlight_line $lno
	set highlight_commit $cmit
}
 
method _copycommit {} {
	set pos @$::cursorX,$::cursorY
	set lno [lindex [split [$::cursorW index $pos] .] 0]
	if {![catch {set commit $line_commit($lno)}]} {
		clipboard clear
		clipboard append \
			-format STRING \
			-type STRING \
			-- $commit
	}
}
 
}