2 # Tcl ignores the next line -*- tcl -*- \
3 exec wish "$0" -- "${1+$@}"
5 # Copyright (C) 2005 Paul Mackerras. All rights reserved.
6 # This program is free software; it may be used, copied, modified
7 # and distributed under the terms of the GNU General Public Licence,
8 # either version 2, or (at your option) any later version.
15 switch -regexp -- $arg {
17 "^-d" { set datemode 1 }
18 "^-b" { set boldnames 1 }
20 puts stderr "unrecognized option $arg"
24 lappend revtreeargs $arg
29 proc getcommits {rargs} {
30 global commits parents cdate nparents children nchildren
35 foreach c [split [eval exec git-rev-tree $rargs] "\n"] {
42 set id [lindex [split $f :] 0]
43 if {![info exists nchildren($id)]} {
54 lappend parents($cid) $id
57 lappend children($id) $cid
65 proc readcommit {id} {
74 foreach line [split [exec git-cat-file commit $id] "\n"] {
79 set tag [lindex $line 0]
80 if {$tag == "author"} {
81 set x [expr {[llength $line] - 2}]
82 set audate [lindex $line $x]
83 set auname [lrange $line 1 [expr {$x - 1}]]
84 } elseif {$tag == "committer"} {
85 set x [expr {[llength $line] - 2}]
86 set comdate [lindex $line $x]
87 set comname [lrange $line 1 [expr {$x - 1}]]
100 set audate [clock format $audate -format "%Y-%m-%d %H:%M:%S"]
102 if {$comdate != {}} {
103 set comdate [clock format $comdate -format "%Y-%m-%d %H:%M:%S"]
105 set commitinfo($id) [list $comment $auname $audate $comname $comdate]
106 return [list $headline $auname $audate]
110 global canv linespc charspc ctext
113 canvas $canv -height [expr 30 * $linespc + 4] -width [expr 90 * $charspc] \
114 -bg white -relief sunk -bd 1 \
115 -yscrollincr $linespc -yscrollcommand ".clist.csb set"
116 scrollbar .clist.csb -command "$canv yview" -highlightthickness 0
117 pack .clist.csb -side right -fill y
118 pack $canv -side bottom -fill both -expand 1
119 pack .clist -side top -fill both -expand 1
121 text $ctext -bg white
122 pack $ctext -side top -fill x -expand 1
124 bind $canv <1> {selcanvline %x %y}
125 bind $canv <B1-Motion> {selcanvline %x %y}
126 bind $canv <ButtonRelease-4> "$canv yview scroll -5 u"
127 bind $canv <ButtonRelease-5> "$canv yview scroll 5 u"
128 bind $canv <2> "$canv scan mark 0 %y"
129 bind $canv <B2-Motion> "$canv scan dragto 0 %y"
130 bind . <Key-Prior> "$canv yview scroll -1 p"
131 bind . <Key-Next> "$canv yview scroll 1 p"
132 bind . <Key-Delete> "$canv yview scroll -1 p"
133 bind . <Key-BackSpace> "$canv yview scroll -1 p"
134 bind . <Key-space> "$canv yview scroll 1 p"
135 bind . <Key-Up> "$canv yview scroll -1 u"
136 bind . <Key-Down> "$canv yview scroll 1 u"
137 bind . Q "set stopped 1; destroy ."
140 proc truncatetofit {str width font} {
141 if {[font measure $font $str] <= $width} {
145 set bad [string length $str]
147 while {$best < $bad - 1} {
148 set try [expr {int(($best + $bad) / 2)}]
149 set tmp "[string range $str 0 [expr $try-1]]..."
150 if {[font measure $font $tmp] <= $width} {
159 proc drawgraph {start} {
160 global parents children nparents nchildren commits
161 global canv mainfont namefont canvx0 canvy0 linespc namex datex
162 global datemode cdate
163 global lineid linehtag linentag linedtag
165 set colors {green red blue magenta darkgrey brown orange}
166 set ncolors [llength $colors]
168 set colormap($start) [lindex $colors 0]
169 foreach id $commits {
170 set ncleft($id) $nchildren($id)
172 set todo [list $start]
175 set linestarty(0) $canvy
180 set nlines [llength $todo]
181 set id [lindex $todo $level]
182 set lineid($lineno) $id
183 foreach p $parents($id) {
186 set cinfo [readcommit $id]
187 set x [expr $canvx0 + $level * $linespc]
188 set y2 [expr $canvy + $linespc]
189 if {$linestarty($level) < $canvy} {
190 set t [$canv create line $x $linestarty($level) $x $canvy \
191 -width 2 -fill $colormap($id)]
193 set linestarty($level) $canvy
195 set t [$canv create oval [expr $x - 4] [expr $canvy - 4] \
196 [expr $x + 3] [expr $canvy + 3] \
197 -fill blue -outline black -width 1]
199 set xt [expr $canvx0 + $nlines * $linespc]
200 set headline [lindex $cinfo 0]
201 set name [lindex $cinfo 1]
202 set date [lindex $cinfo 2]
203 set headline [truncatetofit $headline [expr $namex-$xt-$linespc] \
205 set linehtag($lineno) [$canv create text $xt $canvy -anchor w \
206 -text $headline -font $mainfont ]
207 set name [truncatetofit $name [expr $datex-$namex-$linespc] $namefont]
208 set linentag($lineno) [$canv create text $namex $canvy -anchor w \
209 -text $name -font $namefont]
210 set linedtag($lineno) [$canv create text $datex $canvy -anchor w \
211 -text $date -font $mainfont]
212 if {!$datemode && $nparents($id) == 1} {
213 set p [lindex $parents($id) 0]
214 if {$ncleft($p) == 0 && [lsearch -exact $todo $p] < 0} {
215 set todo [lreplace $todo $level $level $p]
216 set colormap($p) $colormap($id)
218 $canv conf -scrollregion [list 0 0 0 $canvy]
227 for {set i 0} {$i < $nlines} {incr i} {
228 if {[lindex $todo $i] == {}} continue
229 set oldstarty($i) $linestarty($i)
231 lappend lines [list $i [lindex $todo $i]]
235 if {$nullentry >= 0} {
236 set todo [lreplace $todo $nullentry $nullentry]
237 if {$nullentry < $level} {
242 set badcolors [list $colormap($id)]
243 foreach p $parents($id) {
244 if {[info exists colormap($p)]} {
245 lappend badcolors $colormap($p)
248 set todo [lreplace $todo $level $level]
249 if {$nullentry > $level} {
253 foreach p $parents($id) {
254 set k [lsearch -exact $todo $p]
256 set todo [linsert $todo $i $p]
257 if {$nullentry >= $i} {
260 if {$nparents($id) == 1 && $nparents($p) == 1
261 && $nchildren($p) == 1} {
262 set colormap($p) $colormap($id)
264 for {set j 0} {$j <= $ncolors} {incr j} {
265 if {[incr nextcolor] >= $ncolors} {
268 set c [lindex $colors $nextcolor]
269 # make sure the incoming and outgoing colors differ
270 if {[lsearch -exact $badcolors $c] < 0} break
276 lappend lines [list $oldlevel $p]
279 # choose which one to do next time around
280 set todol [llength $todo]
283 for {set k $todol} {[incr k -1] >= 0} {} {
284 set p [lindex $todo $k]
285 if {$p == {}} continue
286 if {$ncleft($p) == 0} {
288 if {$latest == {} || $cdate($p) > $latest} {
290 set latest $cdate($p)
300 puts "ERROR: none of the pending commits can be done yet:"
308 # If we are reducing, put in a null entry
309 if {$todol < $nlines} {
310 if {$nullentry >= 0} {
313 && [lindex $oldtodo $i] == [lindex $todo $i]} {
326 set todo [linsert $todo $nullentry {}]
337 set dst [lindex $l 1]
338 set j [lsearch -exact $todo $dst]
340 set linestarty($i) $oldstarty($i)
343 set xi [expr {$canvx0 + $i * $linespc}]
344 set xj [expr {$canvx0 + $j * $linespc}]
346 if {$oldstarty($i) < $canvy} {
347 lappend coords $xi $oldstarty($i)
349 lappend coords $xi $canvy
351 lappend coords [expr $xj + $linespc] $canvy
352 } elseif {$j > $i + 1} {
353 lappend coords [expr $xj - $linespc] $canvy
355 lappend coords $xj $y2
356 set t [$canv create line $coords -width 2 -fill $colormap($dst)]
358 if {![info exists linestarty($j)]} {
359 set linestarty($j) $y2
363 $canv conf -scrollregion [list 0 0 0 $canvy]
368 proc selcanvline {x y} {
369 global canv canvy0 ctext linespc selectedline
370 global lineid linehtag linentag linedtag commitinfo
371 set ymax [lindex [$canv cget -scrollregion] 3]
372 set yfrac [lindex [$canv yview] 0]
373 set y [expr {$y + $yfrac * $ymax}]
374 set l [expr {int(($y - $canvy0) / $linespc + 0.5)}]
378 if {[info exists selectedline] && $selectedline == $l} return
379 if {![info exists lineid($l)] || ![info exists linehtag($l)]} return
381 $canv select from $linehtag($l) 0
382 $canv select to $linehtag($l) end
384 $ctext delete 0.0 end
385 set info $commitinfo($id)
386 $ctext insert end "Author: [lindex $info 1] \t[lindex $info 2]\n"
387 $ctext insert end "Committer: [lindex $info 3] \t[lindex $info 4]\n"
388 $ctext insert end "\n"
389 $ctext insert end [lindex $info 0]
392 getcommits $revtreeargs
394 set mainfont {Helvetica 9}
395 set namefont $mainfont
397 lappend namefont bold
399 set linespc [font metrics $mainfont -linespace]
400 set charspc [font measure $mainfont "m"]
402 set canvy0 [expr 3 + 0.5 * $linespc]
403 set canvx0 [expr 3 + 0.5 * $linespc]
404 set namex [expr 45 * $charspc]
405 set datex [expr 75 * $charspc]
410 foreach id $commits {
411 if {$nchildren($id) == 0} {