+
+proc optimize_rows {row col endrow} {
+ global rowidlist rowoffsets idrowranges linesegends displayorder
+
+ for {} {$row < $endrow} {incr row} {
+ set idlist [lindex $rowidlist $row]
+ set offs [lindex $rowoffsets $row]
+ set haspad 0
+ for {} {$col < [llength $offs]} {incr col} {
+ if {[lindex $idlist $col] eq {}} {
+ set haspad 1
+ continue
+ }
+ set z [lindex $offs $col]
+ if {$z eq {}} continue
+ set isarrow 0
+ set x0 [expr {$col + $z}]
+ set y0 [expr {$row - 1}]
+ set z0 [lindex $rowoffsets $y0 $x0]
+ if {$z0 eq {}} {
+ set id [lindex $idlist $col]
+ if {[info exists idrowranges($id)] &&
+ $y0 > [lindex $idrowranges($id) 0]} {
+ set isarrow 1
+ }
+ }
+ if {$z < -1 || ($z < 0 && $isarrow)} {
+ set npad [expr {-1 - $z + $isarrow}]
+ set offs [incrange $offs $col $npad]
+ insert_pad $y0 $x0 $npad
+ if {$y0 > 0} {
+ optimize_rows $y0 $x0 $row
+ }
+ set z [lindex $offs $col]
+ set x0 [expr {$col + $z}]
+ set z0 [lindex $rowoffsets $y0 $x0]
+ } elseif {$z > 1 || ($z > 0 && $isarrow)} {
+ set npad [expr {$z - 1 + $isarrow}]
+ set y1 [expr {$row + 1}]
+ set offs2 [lindex $rowoffsets $y1]
+ set x1 -1
+ foreach z $offs2 {
+ incr x1
+ if {$z eq {} || $x1 + $z < $col} continue
+ if {$x1 + $z > $col} {
+ incr npad
+ }
+ lset rowoffsets $y1 [incrange $offs2 $x1 $npad]
+ break
+ }
+ set pad [ntimes $npad {}]
+ set idlist [eval linsert \$idlist $col $pad]
+ set tmp [eval linsert \$offs $col $pad]
+ incr col $npad
+ set offs [incrange $tmp $col [expr {-$npad}]]
+ set z [lindex $offs $col]
+ set haspad 1
+ }
+ if {$z0 eq {} && !$isarrow} {
+ # this line links to its first child on row $row-2
+ set rm2 [expr {$row - 2}]
+ set id [lindex $displayorder $rm2]
+ set xc [lsearch -exact [lindex $rowidlist $rm2] $id]
+ if {$xc >= 0} {
+ set z0 [expr {$xc - $x0}]
+ }
+ }
+ if {$z0 ne {} && $z < 0 && $z0 > 0} {
+ insert_pad $y0 $x0 1
+ set offs [incrange $offs $col 1]
+ optimize_rows $y0 [expr {$x0 + 1}] $row
+ }
+ }
+ if {!$haspad} {
+ set o {}
+ for {set col [llength $idlist]} {[incr col -1] >= 0} {} {
+ set o [lindex $offs $col]
+ if {$o eq {}} {
+ # check if this is the link to the first child
+ set id [lindex $idlist $col]
+ if {[info exists idrowranges($id)] &&
+ $row == [lindex $idrowranges($id) 0]} {
+ # it is, work out offset to child
+ set y0 [expr {$row - 1}]
+ set id [lindex $displayorder $y0]
+ set x0 [lsearch -exact [lindex $rowidlist $y0] $id]
+ if {$x0 >= 0} {
+ set o [expr {$x0 - $col}]
+ }
+ }
+ }
+ if {$o eq {} || $o <= 0} break
+ }
+ if {$o ne {} && [incr col] < [llength $idlist]} {
+ set y1 [expr {$row + 1}]
+ set offs2 [lindex $rowoffsets $y1]
+ set x1 -1
+ foreach z $offs2 {
+ incr x1
+ if {$z eq {} || $x1 + $z < $col} continue
+ lset rowoffsets $y1 [incrange $offs2 $x1 1]
+ break
+ }
+ set idlist [linsert $idlist $col {}]
+ set tmp [linsert $offs $col {}]
+ incr col
+ set offs [incrange $tmp $col -1]
+ }
+ }
+ lset rowidlist $row $idlist
+ lset rowoffsets $row $offs
+ set col 0
+ }
+}
+
+proc xc {row col} {
+ global canvx0 linespc
+ return [expr {$canvx0 + $col * $linespc}]
+}
+
+proc yc {row} {
+ global canvy0 linespc
+ return [expr {$canvy0 + $row * $linespc}]
+}
+
+proc linewidth {id} {
+ global thickerline lthickness
+
+ set wid $lthickness
+ if {[info exists thickerline] && $id eq $thickerline} {
+ set wid [expr {2 * $lthickness}]
+ }
+ return $wid
+}
+
+proc drawlineseg {id i} {
+ global rowoffsets rowidlist idrowranges
+ global displayorder
+ global canv colormap linespc
+
+ set startrow [lindex $idrowranges($id) [expr {2 * $i}]]
+ set row [lindex $idrowranges($id) [expr {2 * $i + 1}]]
+ if {$startrow == $row} return
+ assigncolor $id
+ set coords {}
+ set col [lsearch -exact [lindex $rowidlist $row] $id]
+ if {$col < 0} {
+ puts "oops: drawline: id $id not on row $row"
+ return
+ }
+ set lasto {}
+ set ns 0
+ while {1} {
+ set o [lindex $rowoffsets $row $col]
+ if {$o eq {}} break
+ if {$o ne $lasto} {
+ # changing direction
+ set x [xc $row $col]
+ set y [yc $row]
+ lappend coords $x $y
+ set lasto $o
+ }
+ incr col $o
+ incr row -1
+ }
+ set x [xc $row $col]
+ set y [yc $row]
+ lappend coords $x $y
+ if {$i == 0} {
+ # draw the link to the first child as part of this line
+ incr row -1
+ set child [lindex $displayorder $row]
+ set ccol [lsearch -exact [lindex $rowidlist $row] $child]
+ if {$ccol >= 0} {
+ set x [xc $row $ccol]
+ set y [yc $row]
+ if {$ccol < $col - 1} {
+ lappend coords [xc $row [expr {$col - 1}]] [yc $row]
+ } elseif {$ccol > $col + 1} {
+ lappend coords [xc $row [expr {$col + 1}]] [yc $row]
+ }
+ lappend coords $x $y
+ }
+ }
+ if {[llength $coords] < 4} return
+ set last [expr {[llength $idrowranges($id)] / 2 - 1}]
+ if {$i < $last} {
+ # This line has an arrow at the lower end: check if the arrow is
+ # on a diagonal segment, and if so, work around the Tk 8.4
+ # refusal to draw arrows on diagonal lines.
+ set x0 [lindex $coords 0]
+ set x1 [lindex $coords 2]
+ if {$x0 != $x1} {
+ set y0 [lindex $coords 1]
+ set y1 [lindex $coords 3]
+ if {$y0 - $y1 <= 2 * $linespc && $x1 == [lindex $coords 4]} {
+ # we have a nearby vertical segment, just trim off the diag bit
+ set coords [lrange $coords 2 end]
+ } else {
+ set slope [expr {($x0 - $x1) / ($y0 - $y1)}]
+ set xi [expr {$x0 - $slope * $linespc / 2}]
+ set yi [expr {$y0 - $linespc / 2}]
+ set coords [lreplace $coords 0 1 $xi $y0 $xi $yi]
+ }
+ }
+ }
+ set arrow [expr {2 * ($i > 0) + ($i < $last)}]
+ set arrow [lindex {none first last both} $arrow]
+ set t [$canv create line $coords -width [linewidth $id] \
+ -fill $colormap($id) -tags lines.$id -arrow $arrow]
+ $canv lower $t
+ bindline $t $id
+}
+
+proc drawparentlinks {id row col olds} {
+ global rowidlist canv colormap idrowranges
+
+ set row2 [expr {$row + 1}]
+ set x [xc $row $col]
+ set y [yc $row]
+ set y2 [yc $row2]
+ set ids [lindex $rowidlist $row2]
+ # rmx = right-most X coord used
+ set rmx 0
+ foreach p $olds {
+ set i [lsearch -exact $ids $p]
+ if {$i < 0} {
+ puts "oops, parent $p of $id not in list"
+ continue
+ }
+ set x2 [xc $row2 $i]
+ if {$x2 > $rmx} {
+ set rmx $x2
+ }
+ if {[info exists idrowranges($p)] &&
+ $row2 == [lindex $idrowranges($p) 0] &&
+ $row2 < [lindex $idrowranges($p) 1]} {
+ # drawlineseg will do this one for us
+ continue
+ }
+ assigncolor $p
+ # should handle duplicated parents here...
+ set coords [list $x $y]
+ if {$i < $col - 1} {
+ lappend coords [xc $row [expr {$i + 1}]] $y
+ } elseif {$i > $col + 1} {
+ lappend coords [xc $row [expr {$i - 1}]] $y
+ }
+ lappend coords $x2 $y2
+ set t [$canv create line $coords -width [linewidth $p] \
+ -fill $colormap($p) -tags lines.$p]
+ $canv lower $t
+ bindline $t $p
+ }
+ return $rmx
+}
+
+proc drawlines {id} {
+ global colormap canv
+ global idrowranges idrangedrawn
+ global children iddrawn commitrow rowidlist
+
+ $canv delete lines.$id
+ set nr [expr {[llength $idrowranges($id)] / 2}]
+ for {set i 0} {$i < $nr} {incr i} {
+ if {[info exists idrangedrawn($id,$i)]} {
+ drawlineseg $id $i
+ }
+ }
+ if {[info exists children($id)]} {
+ foreach child $children($id) {
+ if {[info exists iddrawn($child)]} {
+ set row $commitrow($child)
+ set col [lsearch -exact [lindex $rowidlist $row] $child]
+ if {$col >= 0} {
+ drawparentlinks $child $row $col [list $id]
+ }
+ }
+ }
+ }
+}
+
+proc drawcmittext {id row col rmx} {
+ global linespc canv canv2 canv3 canvy0
+ global commitlisted commitinfo rowidlist
+ global rowtextx idpos idtags idheads idotherrefs
+ global linehtag linentag linedtag
+ global mainfont namefont canvxmax
+
+ set ofill [expr {[info exists commitlisted($id)]? "blue": "white"}]
+ set x [xc $row $col]
+ set y [yc $row]
+ set orad [expr {$linespc / 3}]
+ set t [$canv create oval [expr {$x - $orad}] [expr {$y - $orad}] \
+ [expr {$x + $orad - 1}] [expr {$y + $orad - 1}] \
+ -fill $ofill -outline black -width 1]
+ $canv raise $t
+ $canv bind $t <1> {selcanvline {} %x %y}
+ set xt [xc $row [llength [lindex $rowidlist $row]]]
+ if {$xt < $rmx} {
+ set xt $rmx
+ }
+ set rowtextx($row) $xt
+ set idpos($id) [list $x $xt $y]
+ if {[info exists idtags($id)] || [info exists idheads($id)]
+ || [info exists idotherrefs($id)]} {
+ set xt [drawtags $id $x $xt $y]
+ }
+ set headline [lindex $commitinfo($id) 0]
+ set name [lindex $commitinfo($id) 1]
+ set date [lindex $commitinfo($id) 2]
+ set date [formatdate $date]
+ set linehtag($row) [$canv create text $xt $y -anchor w \
+ -text $headline -font $mainfont ]
+ $canv bind $linehtag($row) <Button-3> "rowmenu %X %Y $id"
+ set linentag($row) [$canv2 create text 3 $y -anchor w \
+ -text $name -font $namefont]
+ set linedtag($row) [$canv3 create text 3 $y -anchor w \
+ -text $date -font $mainfont]
+ set xr [expr {$xt + [font measure $mainfont $headline]}]
+ if {$xr > $canvxmax} {
+ set canvxmax $xr
+ setcanvscroll
+ }
+}
+
+proc drawcmitrow {row} {
+ global displayorder rowidlist
+ global idrowranges idrangedrawn iddrawn
+ global commitinfo commitlisted parents numcommits
+
+ if {$row >= $numcommits} return
+ foreach id [lindex $rowidlist $row] {
+ if {![info exists idrowranges($id)]} continue
+ set i -1
+ foreach {s e} $idrowranges($id) {
+ incr i
+ if {$row < $s} continue
+ if {$e eq {}} break
+ if {$row <= $e} {
+ if {$e < $numcommits && ![info exists idrangedrawn($id,$i)]} {
+ drawlineseg $id $i
+ set idrangedrawn($id,$i) 1
+ }
+ break
+ }
+ }
+ }
+
+ set id [lindex $displayorder $row]
+ if {[info exists iddrawn($id)]} return
+ set col [lsearch -exact [lindex $rowidlist $row] $id]
+ if {$col < 0} {
+ puts "oops, row $row id $id not in list"
+ return
+ }
+ if {![info exists commitinfo($id)]} {
+ getcommit $id
+ }
+ assigncolor $id
+ if {[info exists commitlisted($id)] && [info exists parents($id)]
+ && $parents($id) ne {}} {
+ set rmx [drawparentlinks $id $row $col $parents($id)]
+ } else {
+ set rmx 0
+ }
+ drawcmittext $id $row $col $rmx
+ set iddrawn($id) 1
+}
+
+proc drawfrac {f0 f1} {
+ global numcommits canv
+ global linespc
+
+ set ymax [lindex [$canv cget -scrollregion] 3]
+ if {$ymax eq {} || $ymax == 0} return
+ set y0 [expr {int($f0 * $ymax)}]
+ set row [expr {int(($y0 - 3) / $linespc) - 1}]
+ if {$row < 0} {
+ set row 0
+ }
+ set y1 [expr {int($f1 * $ymax)}]
+ set endrow [expr {int(($y1 - 3) / $linespc) + 1}]
+ if {$endrow >= $numcommits} {
+ set endrow [expr {$numcommits - 1}]
+ }
+ for {} {$row <= $endrow} {incr row} {
+ drawcmitrow $row
+ }
+}
+
+proc drawvisible {} {
+ global canv
+ eval drawfrac [$canv yview]
+}
+
+proc clear_display {} {
+ global iddrawn idrangedrawn
+
+ allcanvs delete all
+ catch {unset iddrawn}
+ catch {unset idrangedrawn}
+}
+
+proc assigncolor {id} {
+ global colormap colors nextcolor
+ global parents nparents children nchildren
+ global cornercrossings crossings
+
+ if {[info exists colormap($id)]} return
+ set ncolors [llength $colors]
+ if {$nchildren($id) == 1} {
+ set child [lindex $children($id) 0]
+ if {[info exists colormap($child)]
+ && $nparents($child) == 1} {
+ set colormap($id) $colormap($child)
+ return
+ }
+ }
+ set badcolors {}
+ if {[info exists cornercrossings($id)]} {
+ foreach x $cornercrossings($id) {
+ if {[info exists colormap($x)]
+ && [lsearch -exact $badcolors $colormap($x)] < 0} {
+ lappend badcolors $colormap($x)
+ }
+ }
+ if {[llength $badcolors] >= $ncolors} {
+ set badcolors {}
+ }
+ }
+ set origbad $badcolors
+ if {[llength $badcolors] < $ncolors - 1} {
+ if {[info exists crossings($id)]} {
+ foreach x $crossings($id) {
+ if {[info exists colormap($x)]
+ && [lsearch -exact $badcolors $colormap($x)] < 0} {
+ lappend badcolors $colormap($x)
+ }
+ }
+ if {[llength $badcolors] >= $ncolors} {
+ set badcolors $origbad
+ }
+ }
+ set origbad $badcolors
+ }
+ if {[llength $badcolors] < $ncolors - 1} {
+ foreach child $children($id) {
+ if {[info exists colormap($child)]
+ && [lsearch -exact $badcolors $colormap($child)] < 0} {
+ lappend badcolors $colormap($child)
+ }
+ if {[info exists parents($child)]} {
+ foreach p $parents($child) {
+ if {[info exists colormap($p)]
+ && [lsearch -exact $badcolors $colormap($p)] < 0} {
+ lappend badcolors $colormap($p)
+ }
+ }
+ }
+ }
+ if {[llength $badcolors] >= $ncolors} {
+ set badcolors $origbad
+ }
+ }
+ for {set i 0} {$i <= $ncolors} {incr i} {
+ set c [lindex $colors $nextcolor]
+ if {[incr nextcolor] >= $ncolors} {
+ set nextcolor 0
+ }
+ if {[lsearch -exact $badcolors $c]} break
+ }
+ set colormap($id) $c
+}
+
+proc bindline {t id} {
+ global canv
+
+ $canv bind $t <Enter> "lineenter %x %y $id"
+ $canv bind $t <Motion> "linemotion %x %y $id"
+ $canv bind $t <Leave> "lineleave $id"
+ $canv bind $t <Button-1> "lineclick %x %y $id 1"
+}
+
+proc drawtags {id x xt y1} {
+ global idtags idheads idotherrefs
+ global linespc lthickness
+ global canv mainfont commitrow rowtextx
+
+ set marks {}
+ set ntags 0
+ set nheads 0
+ if {[info exists idtags($id)]} {
+ set marks $idtags($id)
+ set ntags [llength $marks]
+ }
+ if {[info exists idheads($id)]} {
+ set marks [concat $marks $idheads($id)]
+ set nheads [llength $idheads($id)]
+ }
+ if {[info exists idotherrefs($id)]} {
+ set marks [concat $marks $idotherrefs($id)]
+ }
+ if {$marks eq {}} {
+ return $xt
+ }
+
+ set delta [expr {int(0.5 * ($linespc - $lthickness))}]
+ set yt [expr {$y1 - 0.5 * $linespc}]
+ set yb [expr {$yt + $linespc - 1}]
+ set xvals {}
+ set wvals {}
+ foreach tag $marks {
+ set wid [font measure $mainfont $tag]
+ lappend xvals $xt
+ lappend wvals $wid
+ set xt [expr {$xt + $delta + $wid + $lthickness + $linespc}]
+ }
+ set t [$canv create line $x $y1 [lindex $xvals end] $y1 \
+ -width $lthickness -fill black -tags tag.$id]
+ $canv lower $t
+ foreach tag $marks x $xvals wid $wvals {
+ set xl [expr {$x + $delta}]
+ set xr [expr {$x + $delta + $wid + $lthickness}]
+ if {[incr ntags -1] >= 0} {
+ # draw a tag
+ set t [$canv create polygon $x [expr {$yt + $delta}] $xl $yt \
+ $xr $yt $xr $yb $xl $yb $x [expr {$yb - $delta}] \
+ -width 1 -outline black -fill yellow -tags tag.$id]
+ $canv bind $t <1> [list showtag $tag 1]
+ set rowtextx($commitrow($id)) [expr {$xr + $linespc}]
+ } else {
+ # draw a head or other ref
+ if {[incr nheads -1] >= 0} {
+ set col green
+ } else {
+ set col "#ddddff"
+ }
+ set xl [expr {$xl - $delta/2}]
+ $canv create polygon $x $yt $xr $yt $xr $yb $x $yb \
+ -width 1 -outline black -fill $col -tags tag.$id
+ }
+ set t [$canv create text $xl $y1 -anchor w -text $tag \
+ -font $mainfont -tags tag.$id]
+ if {$ntags >= 0} {
+ $canv bind $t <1> [list showtag $tag 1]
+ }
+ }
+ return $xt
+}
+
+proc checkcrossings {row endrow} {
+ global displayorder parents rowidlist
+
+ for {} {$row < $endrow} {incr row} {
+ set id [lindex $displayorder $row]
+ set i [lsearch -exact [lindex $rowidlist $row] $id]
+ if {$i < 0} continue
+ set idlist [lindex $rowidlist [expr {$row+1}]]
+ foreach p $parents($id) {
+ set j [lsearch -exact $idlist $p]
+ if {$j > 0} {
+ if {$j < $i - 1} {
+ notecrossings $row $p $j $i [expr {$j+1}]
+ } elseif {$j > $i + 1} {
+ notecrossings $row $p $i $j [expr {$j-1}]
+ }
+ }
+ }
+ }
+}
+
+proc notecrossings {row id lo hi corner} {
+ global rowidlist crossings cornercrossings
+
+ for {set i $lo} {[incr i] < $hi} {} {
+ set p [lindex [lindex $rowidlist $row] $i]
+ if {$p == {}} continue
+ if {$i == $corner} {
+ if {![info exists cornercrossings($id)]
+ || [lsearch -exact $cornercrossings($id) $p] < 0} {
+ lappend cornercrossings($id) $p
+ }
+ if {![info exists cornercrossings($p)]
+ || [lsearch -exact $cornercrossings($p) $id] < 0} {
+ lappend cornercrossings($p) $id
+ }
+ } else {
+ if {![info exists crossings($id)]
+ || [lsearch -exact $crossings($id) $p] < 0} {
+ lappend crossings($id) $p
+ }
+ if {![info exists crossings($p)]
+ || [lsearch -exact $crossings($p) $id] < 0} {
+ lappend crossings($p) $id
+ }
+ }
+ }
+}
+
+proc xcoord {i level ln} {
+ global canvx0 xspc1 xspc2
+
+ set x [expr {$canvx0 + $i * $xspc1($ln)}]
+ if {$i > 0 && $i == $level} {
+ set x [expr {$x + 0.5 * ($xspc2 - $xspc1($ln))}]
+ } elseif {$i > $level} {
+ set x [expr {$x + $xspc2 - $xspc1($ln)}]
+ }
+ return $x
+}
+
+proc finishcommits {} {
+ global commitidx phase
+ global canv mainfont ctext maincursor textcursor
+ global findinprogress
+
+ if {$commitidx > 0} {
+ drawrest
+ } else {
+ $canv delete all
+ $canv create text 3 3 -anchor nw -text "No commits selected" \
+ -font $mainfont -tags textitems
+ }
+ if {![info exists findinprogress]} {
+ . config -cursor $maincursor
+ settextcursor $textcursor
+ }
+ set phase {}
+}
+
+# Don't change the text pane cursor if it is currently the hand cursor,
+# showing that we are over a sha1 ID link.
+proc settextcursor {c} {
+ global ctext curtextcursor
+
+ if {[$ctext cget -cursor] == $curtextcursor} {
+ $ctext config -cursor $c
+ }
+ set curtextcursor $c
+}
+
+proc drawrest {} {
+ global numcommits
+ global startmsecs
+ global canvy0 numcommits linespc
+ global rowlaidout commitidx
+
+ set row $rowlaidout
+ layoutrows $rowlaidout $commitidx 1
+ layouttail
+ optimize_rows $row 0 $commitidx
+ showstuff $commitidx
+
+ set drawmsecs [expr {[clock clicks -milliseconds] - $startmsecs}]
+ #puts "overall $drawmsecs ms for $numcommits commits"
+}
+
+proc findmatches {f} {
+ global findtype foundstring foundstrlen
+ if {$findtype == "Regexp"} {
+ set matches [regexp -indices -all -inline $foundstring $f]
+ } else {
+ if {$findtype == "IgnCase"} {
+ set str [string tolower $f]
+ } else {
+ set str $f
+ }
+ set matches {}
+ set i 0
+ while {[set j [string first $foundstring $str $i]] >= 0} {
+ lappend matches [list $j [expr {$j+$foundstrlen-1}]]
+ set i [expr {$j + $foundstrlen}]
+ }
+ }
+ return $matches
+}
+
+proc dofind {} {
+ global findtype findloc findstring markedmatches commitinfo
+ global numcommits displayorder linehtag linentag linedtag
+ global mainfont namefont canv canv2 canv3 selectedline
+ global matchinglines foundstring foundstrlen matchstring
+ global commitdata
+
+ stopfindproc
+ unmarkmatches
+ focus .
+ set matchinglines {}
+ if {$findloc == "Pickaxe"} {
+ findpatches
+ return
+ }
+ if {$findtype == "IgnCase"} {
+ set foundstring [string tolower $findstring]
+ } else {
+ set foundstring $findstring
+ }
+ set foundstrlen [string length $findstring]
+ if {$foundstrlen == 0} return
+ regsub -all {[*?\[\\]} $foundstring {\\&} matchstring
+ set matchstring "*$matchstring*"
+ if {$findloc == "Files"} {
+ findfiles
+ return
+ }
+ if {![info exists selectedline]} {
+ set oldsel -1
+ } else {
+ set oldsel $selectedline
+ }
+ set didsel 0
+ set fldtypes {Headline Author Date Committer CDate Comment}
+ set l -1
+ foreach id $displayorder {
+ set d $commitdata($id)
+ incr l
+ if {$findtype == "Regexp"} {
+ set doesmatch [regexp $foundstring $d]
+ } elseif {$findtype == "IgnCase"} {
+ set doesmatch [string match -nocase $matchstring $d]
+ } else {
+ set doesmatch [string match $matchstring $d]
+ }
+ if {!$doesmatch} continue
+ if {![info exists commitinfo($id)]} {
+ getcommit $id
+ }
+ set info $commitinfo($id)
+ set doesmatch 0
+ foreach f $info ty $fldtypes {
+ if {$findloc != "All fields" && $findloc != $ty} {
+ continue
+ }
+ set matches [findmatches $f]
+ if {$matches == {}} continue
+ set doesmatch 1
+ if {$ty == "Headline"} {
+ drawcmitrow $l
+ markmatches $canv $l $f $linehtag($l) $matches $mainfont
+ } elseif {$ty == "Author"} {
+ drawcmitrow $l
+ markmatches $canv2 $l $f $linentag($l) $matches $namefont
+ } elseif {$ty == "Date"} {
+ drawcmitrow $l
+ markmatches $canv3 $l $f $linedtag($l) $matches $mainfont
+ }
+ }
+ if {$doesmatch} {
+ lappend matchinglines $l
+ if {!$didsel && $l > $oldsel} {
+ findselectline $l
+ set didsel 1
+ }
+ }
+ }
+ if {$matchinglines == {}} {
+ bell
+ } elseif {!$didsel} {
+ findselectline [lindex $matchinglines 0]
+ }
+}
+
+proc findselectline {l} {
+ global findloc commentend ctext
+ selectline $l 1
+ if {$findloc == "All fields" || $findloc == "Comments"} {
+ # highlight the matches in the comments
+ set f [$ctext get 1.0 $commentend]
+ set matches [findmatches $f]
+ foreach match $matches {
+ set start [lindex $match 0]
+ set end [expr {[lindex $match 1] + 1}]
+ $ctext tag add found "1.0 + $start c" "1.0 + $end c"
+ }
+ }
+}
+
+proc findnext {restart} {
+ global matchinglines selectedline
+ if {![info exists matchinglines]} {
+ if {$restart} {
+ dofind
+ }
+ return
+ }
+ if {![info exists selectedline]} return
+ foreach l $matchinglines {
+ if {$l > $selectedline} {
+ findselectline $l
+ return
+ }
+ }
+ bell
+}
+
+proc findprev {} {
+ global matchinglines selectedline
+ if {![info exists matchinglines]} {
+ dofind
+ return
+ }
+ if {![info exists selectedline]} return
+ set prev {}
+ foreach l $matchinglines {
+ if {$l >= $selectedline} break
+ set prev $l
+ }
+ if {$prev != {}} {
+ findselectline $prev
+ } else {
+ bell
+ }
+}
+
+proc findlocchange {name ix op} {
+ global findloc findtype findtypemenu
+ if {$findloc == "Pickaxe"} {
+ set findtype Exact
+ set state disabled
+ } else {
+ set state normal
+ }
+ $findtypemenu entryconf 1 -state $state
+ $findtypemenu entryconf 2 -state $state
+}
+
+proc stopfindproc {{done 0}} {
+ global findprocpid findprocfile findids
+ global ctext findoldcursor phase maincursor textcursor
+ global findinprogress
+
+ catch {unset findids}
+ if {[info exists findprocpid]} {
+ if {!$done} {
+ catch {exec kill $findprocpid}
+ }
+ catch {close $findprocfile}
+ unset findprocpid
+ }
+ if {[info exists findinprogress]} {
+ unset findinprogress
+ if {$phase != "incrdraw"} {
+ . config -cursor $maincursor
+ settextcursor $textcursor
+ }
+ }
+}
+
+proc findpatches {} {
+ global findstring selectedline numcommits
+ global findprocpid findprocfile
+ global finddidsel ctext displayorder findinprogress
+ global findinsertpos
+
+ if {$numcommits == 0} return
+
+ # make a list of all the ids to search, starting at the one
+ # after the selected line (if any)
+ if {[info exists selectedline]} {
+ set l $selectedline
+ } else {
+ set l -1
+ }
+ set inputids {}
+ for {set i 0} {$i < $numcommits} {incr i} {
+ if {[incr l] >= $numcommits} {
+ set l 0
+ }
+ append inputids [lindex $displayorder $l] "\n"
+ }
+
+ if {[catch {
+ set f [open [list | git-diff-tree --stdin -s -r -S$findstring \
+ << $inputids] r]
+ } err]} {
+ error_popup "Error starting search process: $err"
+ return
+ }
+
+ set findinsertpos end
+ set findprocfile $f
+ set findprocpid [pid $f]
+ fconfigure $f -blocking 0
+ fileevent $f readable readfindproc
+ set finddidsel 0
+ . config -cursor watch
+ settextcursor watch
+ set findinprogress 1
+}
+
+proc readfindproc {} {
+ global findprocfile finddidsel
+ global commitrow matchinglines findinsertpos
+
+ set n [gets $findprocfile line]
+ if {$n < 0} {
+ if {[eof $findprocfile]} {
+ stopfindproc 1
+ if {!$finddidsel} {
+ bell
+ }
+ }
+ return
+ }
+ if {![regexp {^[0-9a-f]{40}} $line id]} {
+ error_popup "Can't parse git-diff-tree output: $line"
+ stopfindproc
+ return
+ }
+ if {![info exists commitrow($id)]} {
+ puts stderr "spurious id: $id"
+ return
+ }
+ set l $commitrow($id)
+ insertmatch $l $id
+}
+
+proc insertmatch {l id} {
+ global matchinglines findinsertpos finddidsel
+
+ if {$findinsertpos == "end"} {
+ if {$matchinglines != {} && $l < [lindex $matchinglines 0]} {
+ set matchinglines [linsert $matchinglines 0 $l]
+ set findinsertpos 1
+ } else {
+ lappend matchinglines $l
+ }
+ } else {
+ set matchinglines [linsert $matchinglines $findinsertpos $l]
+ incr findinsertpos
+ }
+ markheadline $l $id
+ if {!$finddidsel} {
+ findselectline $l
+ set finddidsel 1
+ }
+}
+
+proc findfiles {} {
+ global selectedline numcommits displayorder ctext
+ global ffileline finddidsel parents nparents
+ global findinprogress findstartline findinsertpos
+ global treediffs fdiffid fdiffsneeded fdiffpos
+ global findmergefiles
+
+ if {$numcommits == 0} return
+
+ if {[info exists selectedline]} {
+ set l [expr {$selectedline + 1}]
+ } else {
+ set l 0
+ }
+ set ffileline $l
+ set findstartline $l
+ set diffsneeded {}
+ set fdiffsneeded {}
+ while 1 {
+ set id [lindex $displayorder $l]
+ if {$findmergefiles || $nparents($id) == 1} {
+ if {![info exists treediffs($id)]} {
+ append diffsneeded "$id\n"
+ lappend fdiffsneeded $id
+ }
+ }
+ if {[incr l] >= $numcommits} {
+ set l 0
+ }
+ if {$l == $findstartline} break
+ }
+
+ # start off a git-diff-tree process if needed
+ if {$diffsneeded ne {}} {
+ if {[catch {
+ set df [open [list | git-diff-tree -r --stdin << $diffsneeded] r]
+ } err ]} {
+ error_popup "Error starting search process: $err"
+ return
+ }
+ catch {unset fdiffid}
+ set fdiffpos 0
+ fconfigure $df -blocking 0
+ fileevent $df readable [list readfilediffs $df]
+ }
+
+ set finddidsel 0
+ set findinsertpos end
+ set id [lindex $displayorder $l]
+ . config -cursor watch
+ settextcursor watch
+ set findinprogress 1
+ findcont $id
+ update
+}
+
+proc readfilediffs {df} {
+ global findid fdiffid fdiffs
+
+ set n [gets $df line]
+ if {$n < 0} {
+ if {[eof $df]} {
+ donefilediff
+ if {[catch {close $df} err]} {
+ stopfindproc
+ bell
+ error_popup "Error in git-diff-tree: $err"
+ } elseif {[info exists findid]} {
+ set id $findid
+ stopfindproc
+ bell
+ error_popup "Couldn't find diffs for $id"
+ }
+ }
+ return
+ }
+ if {[regexp {^([0-9a-f]{40})$} $line match id]} {
+ # start of a new string of diffs
+ donefilediff
+ set fdiffid $id
+ set fdiffs {}
+ } elseif {[string match ":*" $line]} {
+ lappend fdiffs [lindex $line 5]
+ }
+}
+
+proc donefilediff {} {
+ global fdiffid fdiffs treediffs findid
+ global fdiffsneeded fdiffpos
+
+ if {[info exists fdiffid]} {
+ while {[lindex $fdiffsneeded $fdiffpos] ne $fdiffid
+ && $fdiffpos < [llength $fdiffsneeded]} {
+ # git-diff-tree doesn't output anything for a commit
+ # which doesn't change anything
+ set nullid [lindex $fdiffsneeded $fdiffpos]
+ set treediffs($nullid) {}
+ if {[info exists findid] && $nullid eq $findid} {
+ unset findid
+ findcont $nullid
+ }
+ incr fdiffpos
+ }
+ incr fdiffpos
+
+ if {![info exists treediffs($fdiffid)]} {
+ set treediffs($fdiffid) $fdiffs
+ }
+ if {[info exists findid] && $fdiffid eq $findid} {
+ unset findid
+ findcont $fdiffid
+ }
+ }
+}
+
+proc findcont {id} {
+ global findid treediffs parents nparents
+ global ffileline findstartline finddidsel
+ global displayorder numcommits matchinglines findinprogress
+ global findmergefiles
+
+ set l $ffileline
+ while 1 {
+ if {$findmergefiles || $nparents($id) == 1} {
+ if {![info exists treediffs($id)]} {
+ set findid $id
+ set ffileline $l
+ return
+ }
+ set doesmatch 0
+ foreach f $treediffs($id) {
+ set x [findmatches $f]
+ if {$x != {}} {
+ set doesmatch 1
+ break
+ }
+ }
+ if {$doesmatch} {
+ insertmatch $l $id
+ }
+ }
+ if {[incr l] >= $numcommits} {
+ set l 0
+ }
+ if {$l == $findstartline} break
+ set id [lindex $displayorder $l]
+ }
+ stopfindproc
+ if {!$finddidsel} {
+ bell
+ }
+}
+
+# mark a commit as matching by putting a yellow background
+# behind the headline
+proc markheadline {l id} {
+ global canv mainfont linehtag
+
+ drawcmitrow $l
+ set bbox [$canv bbox $linehtag($l)]
+ set t [$canv create rect $bbox -outline {} -tags matches -fill yellow]
+ $canv lower $t
+}
+
+# mark the bits of a headline, author or date that match a find string
+proc markmatches {canv l str tag matches font} {
+ set bbox [$canv bbox $tag]
+ set x0 [lindex $bbox 0]
+ set y0 [lindex $bbox 1]
+ set y1 [lindex $bbox 3]
+ foreach match $matches {
+ set start [lindex $match 0]
+ set end [lindex $match 1]
+ if {$start > $end} continue
+ set xoff [font measure $font [string range $str 0 [expr {$start-1}]]]
+ set xlen [font measure $font [string range $str 0 [expr {$end}]]]
+ set t [$canv create rect [expr {$x0+$xoff}] $y0 \
+ [expr {$x0+$xlen+2}] $y1 \
+ -outline {} -tags matches -fill yellow]
+ $canv lower $t
+ }
+}
+
+proc unmarkmatches {} {
+ global matchinglines findids
+ allcanvs delete matches
+ catch {unset matchinglines}
+ catch {unset findids}
+}
+
+proc selcanvline {w x y} {
+ global canv canvy0 ctext linespc
+ global rowtextx
+ set ymax [lindex [$canv cget -scrollregion] 3]
+ if {$ymax == {}} return
+ set yfrac [lindex [$canv yview] 0]
+ set y [expr {$y + $yfrac * $ymax}]
+ set l [expr {int(($y - $canvy0) / $linespc + 0.5)}]
+ if {$l < 0} {
+ set l 0
+ }
+ if {$w eq $canv} {
+ if {![info exists rowtextx($l)] || $x < $rowtextx($l)} return
+ }
+ unmarkmatches
+ selectline $l 1
+}
+
+proc commit_descriptor {p} {
+ global commitinfo
+ set l "..."
+ if {[info exists commitinfo($p)]} {
+ set l [lindex $commitinfo($p) 0]
+ }
+ return "$p ($l)"
+}
+
+# append some text to the ctext widget, and make any SHA1 ID
+# that we know about be a clickable link.
+proc appendwithlinks {text} {
+ global ctext commitrow linknum
+
+ set start [$ctext index "end - 1c"]
+ $ctext insert end $text
+ $ctext insert end "\n"
+ set links [regexp -indices -all -inline {[0-9a-f]{40}} $text]
+ foreach l $links {
+ set s [lindex $l 0]
+ set e [lindex $l 1]
+ set linkid [string range $text $s $e]
+ if {![info exists commitrow($linkid)]} continue
+ incr e
+ $ctext tag add link "$start + $s c" "$start + $e c"
+ $ctext tag add link$linknum "$start + $s c" "$start + $e c"
+ $ctext tag bind link$linknum <1> [list selectline $commitrow($linkid) 1]
+ incr linknum
+ }
+ $ctext tag conf link -foreground blue -underline 1
+ $ctext tag bind link <Enter> { %W configure -cursor hand2 }
+ $ctext tag bind link <Leave> { %W configure -cursor $curtextcursor }
+}
+
+proc selectline {l isnew} {
+ global canv canv2 canv3 ctext commitinfo selectedline
+ global displayorder linehtag linentag linedtag
+ global canvy0 linespc parents nparents children
+ global cflist currentid sha1entry
+ global commentend idtags linknum
+ global mergemax numcommits
+
+ $canv delete hover
+ normalline
+ if {$l < 0 || $l >= $numcommits} return
+ set y [expr {$canvy0 + $l * $linespc}]
+ set ymax [lindex [$canv cget -scrollregion] 3]
+ set ytop [expr {$y - $linespc - 1}]
+ set ybot [expr {$y + $linespc + 1}]
+ set wnow [$canv yview]
+ set wtop [expr {[lindex $wnow 0] * $ymax}]
+ set wbot [expr {[lindex $wnow 1] * $ymax}]
+ set wh [expr {$wbot - $wtop}]
+ set newtop $wtop
+ if {$ytop < $wtop} {
+ if {$ybot < $wtop} {
+ set newtop [expr {$y - $wh / 2.0}]
+ } else {
+ set newtop $ytop
+ if {$newtop > $wtop - $linespc} {
+ set newtop [expr {$wtop - $linespc}]
+ }
+ }
+ } elseif {$ybot > $wbot} {
+ if {$ytop > $wbot} {
+ set newtop [expr {$y - $wh / 2.0}]
+ } else {
+ set newtop [expr {$ybot - $wh}]
+ if {$newtop < $wtop + $linespc} {
+ set newtop [expr {$wtop + $linespc}]
+ }
+ }
+ }
+ if {$newtop != $wtop} {
+ if {$newtop < 0} {
+ set newtop 0
+ }
+ allcanvs yview moveto [expr {$newtop * 1.0 / $ymax}]
+ drawvisible
+ }
+
+ if {![info exists linehtag($l)]} return
+ $canv delete secsel
+ set t [eval $canv create rect [$canv bbox $linehtag($l)] -outline {{}} \
+ -tags secsel -fill [$canv cget -selectbackground]]
+ $canv lower $t
+ $canv2 delete secsel
+ set t [eval $canv2 create rect [$canv2 bbox $linentag($l)] -outline {{}} \
+ -tags secsel -fill [$canv2 cget -selectbackground]]
+ $canv2 lower $t
+ $canv3 delete secsel
+ set t [eval $canv3 create rect [$canv3 bbox $linedtag($l)] -outline {{}} \
+ -tags secsel -fill [$canv3 cget -selectbackground]]
+ $canv3 lower $t
+
+ if {$isnew} {
+ addtohistory [list selectline $l 0]
+ }
+
+ set selectedline $l
+
+ set id [lindex $displayorder $l]
+ set currentid $id
+ $sha1entry delete 0 end
+ $sha1entry insert 0 $id
+ $sha1entry selection from 0
+ $sha1entry selection to end
+
+ $ctext conf -state normal
+ $ctext delete 0.0 end
+ set linknum 0
+ $ctext mark set fmark.0 0.0
+ $ctext mark gravity fmark.0 left
+ set info $commitinfo($id)
+ set date [formatdate [lindex $info 2]]
+ $ctext insert end "Author: [lindex $info 1] $date\n"
+ set date [formatdate [lindex $info 4]]
+ $ctext insert end "Committer: [lindex $info 3] $date\n"
+ if {[info exists idtags($id)]} {
+ $ctext insert end "Tags:"
+ foreach tag $idtags($id) {
+ $ctext insert end " $tag"
+ }
+ $ctext insert end "\n"
+ }
+
+ set comment {}
+ if {$nparents($id) > 1} {
+ set np 0
+ foreach p $parents($id) {
+ if {$np >= $mergemax} {
+ set tag mmax
+ } else {
+ set tag m$np
+ }
+ $ctext insert end "Parent: " $tag
+ appendwithlinks [commit_descriptor $p]
+ incr np
+ }
+ } else {
+ if {[info exists parents($id)]} {
+ foreach p $parents($id) {
+ append comment "Parent: [commit_descriptor $p]\n"
+ }
+ }
+ }
+
+ if {[info exists children($id)]} {
+ foreach c $children($id) {
+ append comment "Child: [commit_descriptor $c]\n"
+ }
+ }
+ append comment "\n"
+ append comment [lindex $info 5]
+
+ # make anything that looks like a SHA1 ID be a clickable link
+ appendwithlinks $comment
+
+ $ctext tag delete Comments
+ $ctext tag remove found 1.0 end
+ $ctext conf -state disabled
+ set commentend [$ctext index "end - 1c"]
+
+ $cflist delete 0 end
+ $cflist insert end "Comments"
+ if {$nparents($id) <= 1} {
+ startdiff $id
+ } else {
+ mergediff $id
+ }
+}
+
+proc selnextline {dir} {
+ global selectedline
+ if {![info exists selectedline]} return
+ set l [expr {$selectedline + $dir}]
+ unmarkmatches
+ selectline $l 1
+}
+
+proc unselectline {} {
+ global selectedline
+
+ catch {unset selectedline}
+ allcanvs delete secsel
+}
+
+proc addtohistory {cmd} {
+ global history historyindex
+
+ if {$historyindex > 0
+ && [lindex $history [expr {$historyindex - 1}]] == $cmd} {
+ return
+ }
+
+ if {$historyindex < [llength $history]} {
+ set history [lreplace $history $historyindex end $cmd]
+ } else {
+ lappend history $cmd
+ }
+ incr historyindex
+ if {$historyindex > 1} {
+ .ctop.top.bar.leftbut conf -state normal
+ } else {
+ .ctop.top.bar.leftbut conf -state disabled
+ }
+ .ctop.top.bar.rightbut conf -state disabled
+}
+
+proc goback {} {
+ global history historyindex
+
+ if {$historyindex > 1} {
+ incr historyindex -1
+ set cmd [lindex $history [expr {$historyindex - 1}]]
+ eval $cmd
+ .ctop.top.bar.rightbut conf -state normal
+ }
+ if {$historyindex <= 1} {
+ .ctop.top.bar.leftbut conf -state disabled
+ }
+}
+
+proc goforw {} {
+ global history historyindex
+
+ if {$historyindex < [llength $history]} {
+ set cmd [lindex $history $historyindex]
+ incr historyindex
+ eval $cmd
+ .ctop.top.bar.leftbut conf -state normal
+ }
+ if {$historyindex >= [llength $history]} {
+ .ctop.top.bar.rightbut conf -state disabled
+ }
+}
+
+proc mergediff {id} {
+ global parents diffmergeid diffopts mdifffd
+ global difffilestart diffids
+
+ set diffmergeid $id
+ set diffids $id
+ catch {unset difffilestart}
+ # this doesn't seem to actually affect anything...
+ set env(GIT_DIFF_OPTS) $diffopts
+ set cmd [concat | git-diff-tree --no-commit-id --cc $id]
+ if {[catch {set mdf [open $cmd r]} err]} {
+ error_popup "Error getting merge diffs: $err"
+ return
+ }
+ fconfigure $mdf -blocking 0
+ set mdifffd($id) $mdf
+ fileevent $mdf readable [list getmergediffline $mdf $id]
+ set nextupdate [expr {[clock clicks -milliseconds] + 100}]
+}
+
+proc getmergediffline {mdf id} {
+ global diffmergeid ctext cflist nextupdate nparents mergemax
+ global difffilestart mdifffd
+
+ set n [gets $mdf line]
+ if {$n < 0} {
+ if {[eof $mdf]} {
+ close $mdf
+ }
+ return
+ }
+ if {![info exists diffmergeid] || $id != $diffmergeid
+ || $mdf != $mdifffd($id)} {
+ return
+ }
+ $ctext conf -state normal
+ if {[regexp {^diff --cc (.*)} $line match fname]} {
+ # start of a new file
+ $ctext insert end "\n"
+ set here [$ctext index "end - 1c"]
+ set i [$cflist index end]
+ $ctext mark set fmark.$i $here
+ $ctext mark gravity fmark.$i left
+ set difffilestart([expr {$i-1}]) $here
+ $cflist insert end $fname
+ set l [expr {(78 - [string length $fname]) / 2}]
+ set pad [string range "----------------------------------------" 1 $l]
+ $ctext insert end "$pad $fname $pad\n" filesep
+ } elseif {[regexp {^@@} $line]} {
+ $ctext insert end "$line\n" hunksep
+ } elseif {[regexp {^[0-9a-f]{40}$} $line] || [regexp {^index} $line]} {
+ # do nothing
+ } else {
+ # parse the prefix - one ' ', '-' or '+' for each parent
+ set np $nparents($id)
+ set spaces {}
+ set minuses {}
+ set pluses {}
+ set isbad 0
+ for {set j 0} {$j < $np} {incr j} {
+ set c [string range $line $j $j]
+ if {$c == " "} {
+ lappend spaces $j
+ } elseif {$c == "-"} {
+ lappend minuses $j
+ } elseif {$c == "+"} {
+ lappend pluses $j
+ } else {
+ set isbad 1
+ break
+ }
+ }
+ set tags {}
+ set num {}
+ if {!$isbad && $minuses ne {} && $pluses eq {}} {
+ # line doesn't appear in result, parents in $minuses have the line
+ set num [lindex $minuses 0]
+ } elseif {!$isbad && $pluses ne {} && $minuses eq {}} {
+ # line appears in result, parents in $pluses don't have the line
+ lappend tags mresult
+ set num [lindex $spaces 0]
+ }
+ if {$num ne {}} {
+ if {$num >= $mergemax} {
+ set num "max"
+ }
+ lappend tags m$num
+ }
+ $ctext insert end "$line\n" $tags
+ }
+ $ctext conf -state disabled
+ if {[clock clicks -milliseconds] >= $nextupdate} {
+ incr nextupdate 100
+ fileevent $mdf readable {}
+ update
+ fileevent $mdf readable [list getmergediffline $mdf $id]
+ }
+}
+
+proc startdiff {ids} {
+ global treediffs diffids treepending diffmergeid
+
+ set diffids $ids
+ catch {unset diffmergeid}
+ if {![info exists treediffs($ids)]} {
+ if {![info exists treepending]} {
+ gettreediffs $ids
+ }
+ } else {
+ addtocflist $ids
+ }
+}
+
+proc addtocflist {ids} {
+ global treediffs cflist
+ foreach f $treediffs($ids) {
+ $cflist insert end $f
+ }
+ getblobdiffs $ids
+}
+
+proc gettreediffs {ids} {
+ global treediff parents treepending
+ set treepending $ids
+ set treediff {}
+ if {[catch \
+ {set gdtf [open [concat | git-diff-tree --no-commit-id -r $ids] r]} \
+ ]} return
+ fconfigure $gdtf -blocking 0
+ fileevent $gdtf readable [list gettreediffline $gdtf $ids]
+}
+
+proc gettreediffline {gdtf ids} {
+ global treediff treediffs treepending diffids diffmergeid
+
+ set n [gets $gdtf line]
+ if {$n < 0} {
+ if {![eof $gdtf]} return
+ close $gdtf
+ set treediffs($ids) $treediff
+ unset treepending
+ if {$ids != $diffids} {
+ if {![info exists diffmergeid]} {
+ gettreediffs $diffids
+ }
+ } else {
+ addtocflist $ids
+ }
+ return
+ }
+ set file [lindex $line 5]
+ lappend treediff $file
+}
+
+proc getblobdiffs {ids} {
+ global diffopts blobdifffd diffids env curdifftag curtagstart
+ global difffilestart nextupdate diffinhdr treediffs
+
+ set env(GIT_DIFF_OPTS) $diffopts
+ set cmd [concat | git-diff-tree --no-commit-id -r -p -C $ids]
+ if {[catch {set bdf [open $cmd r]} err]} {
+ puts "error getting diffs: $err"
+ return
+ }
+ set diffinhdr 0
+ fconfigure $bdf -blocking 0
+ set blobdifffd($ids) $bdf
+ set curdifftag Comments
+ set curtagstart 0.0
+ catch {unset difffilestart}
+ fileevent $bdf readable [list getblobdiffline $bdf $diffids]
+ set nextupdate [expr {[clock clicks -milliseconds] + 100}]
+}
+
+proc getblobdiffline {bdf ids} {
+ global diffids blobdifffd ctext curdifftag curtagstart
+ global diffnexthead diffnextnote difffilestart
+ global nextupdate diffinhdr treediffs
+
+ set n [gets $bdf line]
+ if {$n < 0} {
+ if {[eof $bdf]} {
+ close $bdf
+ if {$ids == $diffids && $bdf == $blobdifffd($ids)} {
+ $ctext tag add $curdifftag $curtagstart end
+ }
+ }
+ return
+ }
+ if {$ids != $diffids || $bdf != $blobdifffd($ids)} {
+ return
+ }
+ $ctext conf -state normal
+ if {[regexp {^diff --git a/(.*) b/(.*)} $line match fname newname]} {
+ # start of a new file
+ $ctext insert end "\n"
+ $ctext tag add $curdifftag $curtagstart end
+ set curtagstart [$ctext index "end - 1c"]
+ set header $newname
+ set here [$ctext index "end - 1c"]
+ set i [lsearch -exact $treediffs($diffids) $fname]
+ if {$i >= 0} {
+ set difffilestart($i) $here
+ incr i
+ $ctext mark set fmark.$i $here
+ $ctext mark gravity fmark.$i left
+ }
+ if {$newname != $fname} {
+ set i [lsearch -exact $treediffs($diffids) $newname]
+ if {$i >= 0} {
+ set difffilestart($i) $here
+ incr i
+ $ctext mark set fmark.$i $here
+ $ctext mark gravity fmark.$i left
+ }
+ }
+ set curdifftag "f:$fname"
+ $ctext tag delete $curdifftag
+ set l [expr {(78 - [string length $header]) / 2}]
+ set pad [string range "----------------------------------------" 1 $l]
+ $ctext insert end "$pad $header $pad\n" filesep
+ set diffinhdr 1
+ } elseif {$diffinhdr && [string compare -length 3 $line "---"] == 0} {
+ # do nothing
+ } elseif {$diffinhdr && [string compare -length 3 $line "+++"] == 0} {
+ set diffinhdr 0
+ } elseif {[regexp {^@@ -([0-9]+),([0-9]+) \+([0-9]+),([0-9]+) @@(.*)} \
+ $line match f1l f1c f2l f2c rest]} {
+ $ctext insert end "$line\n" hunksep
+ set diffinhdr 0
+ } else {
+ set x [string range $line 0 0]
+ if {$x == "-" || $x == "+"} {
+ set tag [expr {$x == "+"}]
+ $ctext insert end "$line\n" d$tag
+ } elseif {$x == " "} {
+ $ctext insert end "$line\n"
+ } elseif {$diffinhdr || $x == "\\"} {
+ # e.g. "\ No newline at end of file"
+ $ctext insert end "$line\n" filesep
+ } else {
+ # Something else we don't recognize
+ if {$curdifftag != "Comments"} {
+ $ctext insert end "\n"
+ $ctext tag add $curdifftag $curtagstart end
+ set curtagstart [$ctext index "end - 1c"]
+ set curdifftag Comments
+ }
+ $ctext insert end "$line\n" filesep
+ }
+ }
+ $ctext conf -state disabled
+ if {[clock clicks -milliseconds] >= $nextupdate} {
+ incr nextupdate 100
+ fileevent $bdf readable {}
+ update
+ fileevent $bdf readable "getblobdiffline $bdf {$ids}"
+ }
+}
+
+proc nextfile {} {
+ global difffilestart ctext
+ set here [$ctext index @0,0]
+ for {set i 0} {[info exists difffilestart($i)]} {incr i} {
+ if {[$ctext compare $difffilestart($i) > $here]} {
+ if {![info exists pos]
+ || [$ctext compare $difffilestart($i) < $pos]} {
+ set pos $difffilestart($i)
+ }
+ }
+ }
+ if {[info exists pos]} {
+ $ctext yview $pos
+ }
+}
+
+proc listboxsel {} {
+ global ctext cflist currentid
+ if {![info exists currentid]} return
+ set sel [lsort [$cflist curselection]]
+ if {$sel eq {}} return
+ set first [lindex $sel 0]
+ catch {$ctext yview fmark.$first}
+}
+
+proc setcoords {} {
+ global linespc charspc canvx0 canvy0 mainfont
+ global xspc1 xspc2 lthickness
+
+ set linespc [font metrics $mainfont -linespace]
+ set charspc [font measure $mainfont "m"]
+ set canvy0 [expr {int(3 + 0.5 * $linespc)}]
+ set canvx0 [expr {int(3 + 0.5 * $linespc)}]
+ set lthickness [expr {int($linespc / 9) + 1}]
+ set xspc1(0) $linespc
+ set xspc2 $linespc
+}
+
+proc redisplay {} {
+ global canv
+ global selectedline
+
+ set ymax [lindex [$canv cget -scrollregion] 3]
+ if {$ymax eq {} || $ymax == 0} return
+ set span [$canv yview]
+ clear_display
+ setcanvscroll
+ allcanvs yview moveto [lindex $span 0]
+ drawvisible
+ if {[info exists selectedline]} {
+ selectline $selectedline 0
+ }
+}
+
+proc incrfont {inc} {
+ global mainfont namefont textfont ctext canv phase
+ global stopped entries
+ unmarkmatches
+ set mainfont [lreplace $mainfont 1 1 [expr {[lindex $mainfont 1] + $inc}]]
+ set namefont [lreplace $namefont 1 1 [expr {[lindex $namefont 1] + $inc}]]
+ set textfont [lreplace $textfont 1 1 [expr {[lindex $textfont 1] + $inc}]]
+ setcoords
+ $ctext conf -font $textfont
+ $ctext tag conf filesep -font [concat $textfont bold]
+ foreach e $entries {
+ $e conf -font $mainfont
+ }
+ if {$phase == "getcommits"} {
+ $canv itemconf textitems -font $mainfont
+ }
+ redisplay
+}
+
+proc clearsha1 {} {
+ global sha1entry sha1string
+ if {[string length $sha1string] == 40} {
+ $sha1entry delete 0 end
+ }
+}
+
+proc sha1change {n1 n2 op} {
+ global sha1string currentid sha1but
+ if {$sha1string == {}
+ || ([info exists currentid] && $sha1string == $currentid)} {
+ set state disabled
+ } else {
+ set state normal
+ }
+ if {[$sha1but cget -state] == $state} return
+ if {$state == "normal"} {
+ $sha1but conf -state normal -relief raised -text "Goto: "
+ } else {
+ $sha1but conf -state disabled -relief flat -text "SHA1 ID: "
+ }
+}
+
+proc gotocommit {} {
+ global sha1string currentid commitrow tagids
+ global displayorder numcommits
+
+ if {$sha1string == {}
+ || ([info exists currentid] && $sha1string == $currentid)} return
+ if {[info exists tagids($sha1string)]} {
+ set id $tagids($sha1string)
+ } else {
+ set id [string tolower $sha1string]
+ if {[regexp {^[0-9a-f]{4,39}$} $id]} {
+ set matches {}
+ foreach i $displayorder {
+ if {[string match $id* $i]} {
+ lappend matches $i
+ }
+ }
+ if {$matches ne {}} {
+ if {[llength $matches] > 1} {
+ error_popup "Short SHA1 id $id is ambiguous"
+ return
+ }
+ set id [lindex $matches 0]
+ }
+ }
+ }
+ if {[info exists commitrow($id)]} {
+ selectline $commitrow($id) 1
+ return
+ }
+ if {[regexp {^[0-9a-fA-F]{4,}$} $sha1string]} {
+ set type "SHA1 id"
+ } else {
+ set type "Tag"
+ }
+ error_popup "$type $sha1string is not known"
+}
+
+proc lineenter {x y id} {
+ global hoverx hovery hoverid hovertimer
+ global commitinfo canv
+
+ if {![info exists commitinfo($id)] && ![getcommit $id]} return
+ set hoverx $x
+ set hovery $y
+ set hoverid $id
+ if {[info exists hovertimer]} {
+ after cancel $hovertimer
+ }
+ set hovertimer [after 500 linehover]
+ $canv delete hover
+}
+
+proc linemotion {x y id} {
+ global hoverx hovery hoverid hovertimer
+
+ if {[info exists hoverid] && $id == $hoverid} {
+ set hoverx $x
+ set hovery $y
+ if {[info exists hovertimer]} {
+ after cancel $hovertimer
+ }
+ set hovertimer [after 500 linehover]
+ }
+}
+
+proc lineleave {id} {
+ global hoverid hovertimer canv
+
+ if {[info exists hoverid] && $id == $hoverid} {
+ $canv delete hover
+ if {[info exists hovertimer]} {
+ after cancel $hovertimer
+ unset hovertimer
+ }
+ unset hoverid
+ }
+}
+
+proc linehover {} {
+ global hoverx hovery hoverid hovertimer
+ global canv linespc lthickness
+ global commitinfo mainfont
+
+ set text [lindex $commitinfo($hoverid) 0]
+ set ymax [lindex [$canv cget -scrollregion] 3]
+ if {$ymax == {}} return
+ set yfrac [lindex [$canv yview] 0]
+ set x [expr {$hoverx + 2 * $linespc}]
+ set y [expr {$hovery + $yfrac * $ymax - $linespc / 2}]
+ set x0 [expr {$x - 2 * $lthickness}]
+ set y0 [expr {$y - 2 * $lthickness}]
+ set x1 [expr {$x + [font measure $mainfont $text] + 2 * $lthickness}]
+ set y1 [expr {$y + $linespc + 2 * $lthickness}]
+ set t [$canv create rectangle $x0 $y0 $x1 $y1 \
+ -fill \#ffff80 -outline black -width 1 -tags hover]
+ $canv raise $t
+ set t [$canv create text $x $y -anchor nw -text $text -tags hover -font $mainfont]
+ $canv raise $t
+}
+
+proc clickisonarrow {id y} {
+ global lthickness idrowranges
+
+ set thresh [expr {2 * $lthickness + 6}]
+ set n [expr {[llength $idrowranges($id)] - 1}]
+ for {set i 1} {$i < $n} {incr i} {
+ set row [lindex $idrowranges($id) $i]
+ if {abs([yc $row] - $y) < $thresh} {
+ return $i
+ }
+ }
+ return {}
+}
+
+proc arrowjump {id n y} {
+ global idrowranges canv
+
+ # 1 <-> 2, 3 <-> 4, etc...
+ set n [expr {(($n - 1) ^ 1) + 1}]
+ set row [lindex $idrowranges($id) $n]
+ set yt [yc $row]
+ set ymax [lindex [$canv cget -scrollregion] 3]
+ if {$ymax eq {} || $ymax <= 0} return
+ set view [$canv yview]
+ set yspan [expr {[lindex $view 1] - [lindex $view 0]}]
+ set yfrac [expr {$yt / $ymax - $yspan / 2}]
+ if {$yfrac < 0} {
+ set yfrac 0
+ }
+ allcanvs yview moveto $yfrac
+}
+
+proc lineclick {x y id isnew} {
+ global ctext commitinfo children cflist canv thickerline
+
+ if {![info exists commitinfo($id)] && ![getcommit $id]} return
+ unmarkmatches
+ unselectline
+ normalline
+ $canv delete hover
+ # draw this line thicker than normal
+ set thickerline $id
+ drawlines $id
+ if {$isnew} {
+ set ymax [lindex [$canv cget -scrollregion] 3]
+ if {$ymax eq {}} return
+ set yfrac [lindex [$canv yview] 0]
+ set y [expr {$y + $yfrac * $ymax}]
+ }
+ set dirn [clickisonarrow $id $y]
+ if {$dirn ne {}} {
+ arrowjump $id $dirn $y
+ return
+ }
+
+ if {$isnew} {
+ addtohistory [list lineclick $x $y $id 0]
+ }
+ # fill the details pane with info about this line
+ $ctext conf -state normal
+ $ctext delete 0.0 end
+ $ctext tag conf link -foreground blue -underline 1
+ $ctext tag bind link <Enter> { %W configure -cursor hand2 }
+ $ctext tag bind link <Leave> { %W configure -cursor $curtextcursor }
+ $ctext insert end "Parent:\t"
+ $ctext insert end $id [list link link0]
+ $ctext tag bind link0 <1> [list selbyid $id]
+ set info $commitinfo($id)
+ $ctext insert end "\n\t[lindex $info 0]\n"
+ $ctext insert end "\tAuthor:\t[lindex $info 1]\n"
+ set date [formatdate [lindex $info 2]]
+ $ctext insert end "\tDate:\t$date\n"
+ if {[info exists children($id)]} {
+ $ctext insert end "\nChildren:"
+ set i 0
+ foreach child $children($id) {
+ incr i
+ if {![info exists commitinfo($child)] && ![getcommit $child]} continue
+ set info $commitinfo($child)
+ $ctext insert end "\n\t"
+ $ctext insert end $child [list link link$i]
+ $ctext tag bind link$i <1> [list selbyid $child]
+ $ctext insert end "\n\t[lindex $info 0]"
+ $ctext insert end "\n\tAuthor:\t[lindex $info 1]"
+ set date [formatdate [lindex $info 2]]
+ $ctext insert end "\n\tDate:\t$date\n"
+ }
+ }
+ $ctext conf -state disabled
+
+ $cflist delete 0 end
+}
+
+proc normalline {} {
+ global thickerline
+ if {[info exists thickerline]} {
+ set id $thickerline
+ unset thickerline
+ drawlines $id
+ }
+}
+
+proc selbyid {id} {
+ global commitrow
+ if {[info exists commitrow($id)]} {
+ selectline $commitrow($id) 1
+ }
+}
+
+proc mstime {} {
+ global startmstime
+ if {![info exists startmstime]} {
+ set startmstime [clock clicks -milliseconds]
+ }
+ return [format "%.3f" [expr {([clock click -milliseconds] - $startmstime) / 1000.0}]]
+}
+
+proc rowmenu {x y id} {
+ global rowctxmenu commitrow selectedline rowmenuid
+
+ if {![info exists selectedline] || $commitrow($id) eq $selectedline} {
+ set state disabled
+ } else {
+ set state normal
+ }
+ $rowctxmenu entryconfigure 0 -state $state
+ $rowctxmenu entryconfigure 1 -state $state
+ $rowctxmenu entryconfigure 2 -state $state
+ set rowmenuid $id
+ tk_popup $rowctxmenu $x $y
+}
+
+proc diffvssel {dirn} {
+ global rowmenuid selectedline displayorder
+
+ if {![info exists selectedline]} return
+ if {$dirn} {
+ set oldid [lindex $displayorder $selectedline]
+ set newid $rowmenuid
+ } else {
+ set oldid $rowmenuid
+ set newid [lindex $displayorder $selectedline]
+ }
+ addtohistory [list doseldiff $oldid $newid]
+ doseldiff $oldid $newid
+}
+
+proc doseldiff {oldid newid} {
+ global ctext cflist
+ global commitinfo
+
+ $ctext conf -state normal
+ $ctext delete 0.0 end
+ $ctext mark set fmark.0 0.0
+ $ctext mark gravity fmark.0 left
+ $cflist delete 0 end
+ $cflist insert end "Top"
+ $ctext insert end "From "
+ $ctext tag conf link -foreground blue -underline 1
+ $ctext tag bind link <Enter> { %W configure -cursor hand2 }
+ $ctext tag bind link <Leave> { %W configure -cursor $curtextcursor }
+ $ctext tag bind link0 <1> [list selbyid $oldid]
+ $ctext insert end $oldid [list link link0]
+ $ctext insert end "\n "
+ $ctext insert end [lindex $commitinfo($oldid) 0]
+ $ctext insert end "\n\nTo "
+ $ctext tag bind link1 <1> [list selbyid $newid]
+ $ctext insert end $newid [list link link1]
+ $ctext insert end "\n "
+ $ctext insert end [lindex $commitinfo($newid) 0]
+ $ctext insert end "\n"
+ $ctext conf -state disabled
+ $ctext tag delete Comments
+ $ctext tag remove found 1.0 end
+ startdiff [list $oldid $newid]
+}
+
+proc mkpatch {} {
+ global rowmenuid currentid commitinfo patchtop patchnum
+
+ if {![info exists currentid]} return
+ set oldid $currentid
+ set oldhead [lindex $commitinfo($oldid) 0]
+ set newid $rowmenuid
+ set newhead [lindex $commitinfo($newid) 0]
+ set top .patch
+ set patchtop $top
+ catch {destroy $top}
+ toplevel $top
+ label $top.title -text "Generate patch"
+ grid $top.title - -pady 10
+ label $top.from -text "From:"
+ entry $top.fromsha1 -width 40 -relief flat
+ $top.fromsha1 insert 0 $oldid
+ $top.fromsha1 conf -state readonly
+ grid $top.from $top.fromsha1 -sticky w
+ entry $top.fromhead -width 60 -relief flat
+ $top.fromhead insert 0 $oldhead
+ $top.fromhead conf -state readonly
+ grid x $top.fromhead -sticky w
+ label $top.to -text "To:"
+ entry $top.tosha1 -width 40 -relief flat
+ $top.tosha1 insert 0 $newid
+ $top.tosha1 conf -state readonly
+ grid $top.to $top.tosha1 -sticky w
+ entry $top.tohead -width 60 -relief flat
+ $top.tohead insert 0 $newhead
+ $top.tohead conf -state readonly
+ grid x $top.tohead -sticky w
+ button $top.rev -text "Reverse" -command mkpatchrev -padx 5
+ grid $top.rev x -pady 10
+ label $top.flab -text "Output file:"
+ entry $top.fname -width 60
+ $top.fname insert 0 [file normalize "patch$patchnum.patch"]
+ incr patchnum
+ grid $top.flab $top.fname -sticky w
+ frame $top.buts
+ button $top.buts.gen -text "Generate" -command mkpatchgo
+ button $top.buts.can -text "Cancel" -command mkpatchcan
+ grid $top.buts.gen $top.buts.can
+ grid columnconfigure $top.buts 0 -weight 1 -uniform a
+ grid columnconfigure $top.buts 1 -weight 1 -uniform a
+ grid $top.buts - -pady 10 -sticky ew
+ focus $top.fname
+}
+
+proc mkpatchrev {} {
+ global patchtop
+
+ set oldid [$patchtop.fromsha1 get]
+ set oldhead [$patchtop.fromhead get]
+ set newid [$patchtop.tosha1 get]
+ set newhead [$patchtop.tohead get]
+ foreach e [list fromsha1 fromhead tosha1 tohead] \
+ v [list $newid $newhead $oldid $oldhead] {
+ $patchtop.$e conf -state normal
+ $patchtop.$e delete 0 end
+ $patchtop.$e insert 0 $v
+ $patchtop.$e conf -state readonly
+ }
+}
+
+proc mkpatchgo {} {
+ global patchtop
+
+ set oldid [$patchtop.fromsha1 get]
+ set newid [$patchtop.tosha1 get]
+ set fname [$patchtop.fname get]
+ if {[catch {exec git-diff-tree -p $oldid $newid >$fname &} err]} {
+ error_popup "Error creating patch: $err"
+ }
+ catch {destroy $patchtop}
+ unset patchtop
+}
+
+proc mkpatchcan {} {
+ global patchtop
+
+ catch {destroy $patchtop}
+ unset patchtop
+}
+
+proc mktag {} {
+ global rowmenuid mktagtop commitinfo
+
+ set top .maketag
+ set mktagtop $top
+ catch {destroy $top}
+ toplevel $top
+ label $top.title -text "Create tag"
+ grid $top.title - -pady 10
+ label $top.id -text "ID:"
+ entry $top.sha1 -width 40 -relief flat
+ $top.sha1 insert 0 $rowmenuid
+ $top.sha1 conf -state readonly
+ grid $top.id $top.sha1 -sticky w
+ entry $top.head -width 60 -relief flat
+ $top.head insert 0 [lindex $commitinfo($rowmenuid) 0]
+ $top.head conf -state readonly
+ grid x $top.head -sticky w
+ label $top.tlab -text "Tag name:"
+ entry $top.tag -width 60
+ grid $top.tlab $top.tag -sticky w
+ frame $top.buts
+ button $top.buts.gen -text "Create" -command mktaggo
+ button $top.buts.can -text "Cancel" -command mktagcan
+ grid $top.buts.gen $top.buts.can
+ grid columnconfigure $top.buts 0 -weight 1 -uniform a
+ grid columnconfigure $top.buts 1 -weight 1 -uniform a
+ grid $top.buts - -pady 10 -sticky ew
+ focus $top.tag
+}
+
+proc domktag {} {
+ global mktagtop env tagids idtags
+
+ set id [$mktagtop.sha1 get]
+ set tag [$mktagtop.tag get]
+ if {$tag == {}} {
+ error_popup "No tag name specified"
+ return
+ }
+ if {[info exists tagids($tag)]} {
+ error_popup "Tag \"$tag\" already exists"
+ return
+ }
+ if {[catch {
+ set dir [gitdir]
+ set fname [file join $dir "refs/tags" $tag]
+ set f [open $fname w]
+ puts $f $id
+ close $f
+ } err]} {
+ error_popup "Error creating tag: $err"
+ return
+ }
+
+ set tagids($tag) $id
+ lappend idtags($id) $tag
+ redrawtags $id
+}
+
+proc redrawtags {id} {
+ global canv linehtag commitrow idpos selectedline
+
+ if {![info exists commitrow($id)]} return
+ drawcmitrow $commitrow($id)
+ $canv delete tag.$id
+ set xt [eval drawtags $id $idpos($id)]
+ $canv coords $linehtag($commitrow($id)) $xt [lindex $idpos($id) 2]
+ if {[info exists selectedline] && $selectedline == $commitrow($id)} {
+ selectline $selectedline 0
+ }
+}
+
+proc mktagcan {} {
+ global mktagtop
+
+ catch {destroy $mktagtop}
+ unset mktagtop
+}
+
+proc mktaggo {} {
+ domktag
+ mktagcan
+}
+
+proc writecommit {} {
+ global rowmenuid wrcomtop commitinfo wrcomcmd
+
+ set top .writecommit
+ set wrcomtop $top
+ catch {destroy $top}
+ toplevel $top
+ label $top.title -text "Write commit to file"
+ grid $top.title - -pady 10
+ label $top.id -text "ID:"
+ entry $top.sha1 -width 40 -relief flat
+ $top.sha1 insert 0 $rowmenuid
+ $top.sha1 conf -state readonly
+ grid $top.id $top.sha1 -sticky w
+ entry $top.head -width 60 -relief flat
+ $top.head insert 0 [lindex $commitinfo($rowmenuid) 0]
+ $top.head conf -state readonly
+ grid x $top.head -sticky w
+ label $top.clab -text "Command:"
+ entry $top.cmd -width 60 -textvariable wrcomcmd
+ grid $top.clab $top.cmd -sticky w -pady 10
+ label $top.flab -text "Output file:"
+ entry $top.fname -width 60
+ $top.fname insert 0 [file normalize "commit-[string range $rowmenuid 0 6]"]
+ grid $top.flab $top.fname -sticky w
+ frame $top.buts
+ button $top.buts.gen -text "Write" -command wrcomgo
+ button $top.buts.can -text "Cancel" -command wrcomcan
+ grid $top.buts.gen $top.buts.can
+ grid columnconfigure $top.buts 0 -weight 1 -uniform a
+ grid columnconfigure $top.buts 1 -weight 1 -uniform a
+ grid $top.buts - -pady 10 -sticky ew
+ focus $top.fname
+}
+
+proc wrcomgo {} {
+ global wrcomtop
+
+ set id [$wrcomtop.sha1 get]
+ set cmd "echo $id | [$wrcomtop.cmd get]"
+ set fname [$wrcomtop.fname get]
+ if {[catch {exec sh -c $cmd >$fname &} err]} {
+ error_popup "Error writing commit: $err"
+ }
+ catch {destroy $wrcomtop}
+ unset wrcomtop
+}
+
+proc wrcomcan {} {
+ global wrcomtop
+
+ catch {destroy $wrcomtop}
+ unset wrcomtop
+}
+
+proc listrefs {id} {
+ global idtags idheads idotherrefs
+
+ set x {}
+ if {[info exists idtags($id)]} {
+ set x $idtags($id)
+ }
+ set y {}
+ if {[info exists idheads($id)]} {
+ set y $idheads($id)
+ }
+ set z {}
+ if {[info exists idotherrefs($id)]} {
+ set z $idotherrefs($id)
+ }
+ return [list $x $y $z]
+}
+
+proc rereadrefs {} {
+ global idtags idheads idotherrefs
+ global tagids headids otherrefids
+
+ set refids [concat [array names idtags] \
+ [array names idheads] [array names idotherrefs]]
+ foreach id $refids {
+ if {![info exists ref($id)]} {
+ set ref($id) [listrefs $id]
+ }
+ }
+ readrefs
+ set refids [lsort -unique [concat $refids [array names idtags] \
+ [array names idheads] [array names idotherrefs]]]
+ foreach id $refids {
+ set v [listrefs $id]
+ if {![info exists ref($id)] || $ref($id) != $v} {
+ redrawtags $id
+ }
+ }
+}
+
+proc showtag {tag isnew} {
+ global ctext cflist tagcontents tagids linknum
+
+ if {$isnew} {
+ addtohistory [list showtag $tag 0]
+ }
+ $ctext conf -state normal
+ $ctext delete 0.0 end
+ set linknum 0
+ if {[info exists tagcontents($tag)]} {
+ set text $tagcontents($tag)
+ } else {
+ set text "Tag: $tag\nId: $tagids($tag)"
+ }
+ appendwithlinks $text
+ $ctext conf -state disabled
+ $cflist delete 0 end
+}
+
+proc doquit {} {
+ global stopped
+ set stopped 100
+ destroy .
+}
+
+proc doprefs {} {
+ global maxwidth maxgraphpct diffopts findmergefiles
+ global oldprefs prefstop
+
+ set top .gitkprefs
+ set prefstop $top
+ if {[winfo exists $top]} {
+ raise $top
+ return
+ }
+ foreach v {maxwidth maxgraphpct diffopts findmergefiles} {
+ set oldprefs($v) [set $v]
+ }
+ toplevel $top
+ wm title $top "Gitk preferences"
+ label $top.ldisp -text "Commit list display options"
+ grid $top.ldisp - -sticky w -pady 10
+ label $top.spacer -text " "
+ label $top.maxwidthl -text "Maximum graph width (lines)" \
+ -font optionfont
+ spinbox $top.maxwidth -from 0 -to 100 -width 4 -textvariable maxwidth
+ grid $top.spacer $top.maxwidthl $top.maxwidth -sticky w
+ label $top.maxpctl -text "Maximum graph width (% of pane)" \
+ -font optionfont
+ spinbox $top.maxpct -from 1 -to 100 -width 4 -textvariable maxgraphpct
+ grid x $top.maxpctl $top.maxpct -sticky w
+ checkbutton $top.findm -variable findmergefiles
+ label $top.findml -text "Include merges for \"Find\" in \"Files\"" \
+ -font optionfont
+ grid $top.findm $top.findml - -sticky w
+ label $top.ddisp -text "Diff display options"
+ grid $top.ddisp - -sticky w -pady 10
+ label $top.diffoptl -text "Options for diff program" \
+ -font optionfont
+ entry $top.diffopt -width 20 -textvariable diffopts
+ grid x $top.diffoptl $top.diffopt -sticky w
+ frame $top.buts
+ button $top.buts.ok -text "OK" -command prefsok
+ button $top.buts.can -text "Cancel" -command prefscan
+ grid $top.buts.ok $top.buts.can
+ grid columnconfigure $top.buts 0 -weight 1 -uniform a
+ grid columnconfigure $top.buts 1 -weight 1 -uniform a
+ grid $top.buts - - -pady 10 -sticky ew
+}
+
+proc prefscan {} {
+ global maxwidth maxgraphpct diffopts findmergefiles
+ global oldprefs prefstop
+
+ foreach v {maxwidth maxgraphpct diffopts findmergefiles} {
+ set $v $oldprefs($v)
+ }
+ catch {destroy $prefstop}
+ unset prefstop
+}
+
+proc prefsok {} {
+ global maxwidth maxgraphpct
+ global oldprefs prefstop
+
+ catch {destroy $prefstop}
+ unset prefstop
+ if {$maxwidth != $oldprefs(maxwidth)
+ || $maxgraphpct != $oldprefs(maxgraphpct)} {
+ redisplay
+ }
+}
+
+proc formatdate {d} {
+ return [clock format $d -format "%Y-%m-%d %H:%M:%S"]
+}
+
+# This list of encoding names and aliases is distilled from
+# http://www.iana.org/assignments/character-sets.
+# Not all of them are supported by Tcl.
+set encoding_aliases {
+ { ANSI_X3.4-1968 iso-ir-6 ANSI_X3.4-1986 ISO_646.irv:1991 ASCII
+ ISO646-US US-ASCII us IBM367 cp367 csASCII }
+ { ISO-10646-UTF-1 csISO10646UTF1 }
+ { ISO_646.basic:1983 ref csISO646basic1983 }
+ { INVARIANT csINVARIANT }
+ { ISO_646.irv:1983 iso-ir-2 irv csISO2IntlRefVersion }
+ { BS_4730 iso-ir-4 ISO646-GB gb uk csISO4UnitedKingdom }
+ { NATS-SEFI iso-ir-8-1 csNATSSEFI }
+ { NATS-SEFI-ADD iso-ir-8-2 csNATSSEFIADD }
+ { NATS-DANO iso-ir-9-1 csNATSDANO }
+ { NATS-DANO-ADD iso-ir-9-2 csNATSDANOADD }
+ { SEN_850200_B iso-ir-10 FI ISO646-FI ISO646-SE se csISO10Swedish }
+ { SEN_850200_C iso-ir-11 ISO646-SE2 se2 csISO11SwedishForNames }
+ { KS_C_5601-1987 iso-ir-149 KS_C_5601-1989 KSC_5601 korean csKSC56011987 }
+ { ISO-2022-KR csISO2022KR }
+ { EUC-KR csEUCKR }
+ { ISO-2022-JP csISO2022JP }
+ { ISO-2022-JP-2 csISO2022JP2 }
+ { JIS_C6220-1969-jp JIS_C6220-1969 iso-ir-13 katakana x0201-7
+ csISO13JISC6220jp }
+ { JIS_C6220-1969-ro iso-ir-14 jp ISO646-JP csISO14JISC6220ro }
+ { IT iso-ir-15 ISO646-IT csISO15Italian }
+ { PT iso-ir-16 ISO646-PT csISO16Portuguese }
+ { ES iso-ir-17 ISO646-ES csISO17Spanish }
+ { greek7-old iso-ir-18 csISO18Greek7Old }
+ { latin-greek iso-ir-19 csISO19LatinGreek }
+ { DIN_66003 iso-ir-21 de ISO646-DE csISO21German }
+ { NF_Z_62-010_(1973) iso-ir-25 ISO646-FR1 csISO25French }
+ { Latin-greek-1 iso-ir-27 csISO27LatinGreek1 }
+ { ISO_5427 iso-ir-37 csISO5427Cyrillic }
+ { JIS_C6226-1978 iso-ir-42 csISO42JISC62261978 }
+ { BS_viewdata iso-ir-47 csISO47BSViewdata }
+ { INIS iso-ir-49 csISO49INIS }
+ { INIS-8 iso-ir-50 csISO50INIS8 }
+ { INIS-cyrillic iso-ir-51 csISO51INISCyrillic }
+ { ISO_5427:1981 iso-ir-54 ISO5427Cyrillic1981 }
+ { ISO_5428:1980 iso-ir-55 csISO5428Greek }
+ { GB_1988-80 iso-ir-57 cn ISO646-CN csISO57GB1988 }
+ { GB_2312-80 iso-ir-58 chinese csISO58GB231280 }
+ { NS_4551-1 iso-ir-60 ISO646-NO no csISO60DanishNorwegian
+ csISO60Norwegian1 }
+ { NS_4551-2 ISO646-NO2 iso-ir-61 no2 csISO61Norwegian2 }
+ { NF_Z_62-010 iso-ir-69 ISO646-FR fr csISO69French }
+ { videotex-suppl iso-ir-70 csISO70VideotexSupp1 }
+ { PT2 iso-ir-84 ISO646-PT2 csISO84Portuguese2 }
+ { ES2 iso-ir-85 ISO646-ES2 csISO85Spanish2 }
+ { MSZ_7795.3 iso-ir-86 ISO646-HU hu csISO86Hungarian }
+ { JIS_C6226-1983 iso-ir-87 x0208 JIS_X0208-1983 csISO87JISX0208 }
+ { greek7 iso-ir-88 csISO88Greek7 }
+ { ASMO_449 ISO_9036 arabic7 iso-ir-89 csISO89ASMO449 }
+ { iso-ir-90 csISO90 }
+ { JIS_C6229-1984-a iso-ir-91 jp-ocr-a csISO91JISC62291984a }
+ { JIS_C6229-1984-b iso-ir-92 ISO646-JP-OCR-B jp-ocr-b
+ csISO92JISC62991984b }
+ { JIS_C6229-1984-b-add iso-ir-93 jp-ocr-b-add csISO93JIS62291984badd }
+ { JIS_C6229-1984-hand iso-ir-94 jp-ocr-hand csISO94JIS62291984hand }
+ { JIS_C6229-1984-hand-add iso-ir-95 jp-ocr-hand-add
+ csISO95JIS62291984handadd }
+ { JIS_C6229-1984-kana iso-ir-96 csISO96JISC62291984kana }
+ { ISO_2033-1983 iso-ir-98 e13b csISO2033 }
+ { ANSI_X3.110-1983 iso-ir-99 CSA_T500-1983 NAPLPS csISO99NAPLPS }
+ { ISO_8859-1:1987 iso-ir-100 ISO_8859-1 ISO-8859-1 latin1 l1 IBM819
+ CP819 csISOLatin1 }
+ { ISO_8859-2:1987 iso-ir-101 ISO_8859-2 ISO-8859-2 latin2 l2 csISOLatin2 }
+ { T.61-7bit iso-ir-102 csISO102T617bit }
+ { T.61-8bit T.61 iso-ir-103 csISO103T618bit }
+ { ISO_8859-3:1988 iso-ir-109 ISO_8859-3 ISO-8859-3 latin3 l3 csISOLatin3 }
+ { ISO_8859-4:1988 iso-ir-110 ISO_8859-4 ISO-8859-4 latin4 l4 csISOLatin4 }
+ { ECMA-cyrillic iso-ir-111 KOI8-E csISO111ECMACyrillic }
+ { CSA_Z243.4-1985-1 iso-ir-121 ISO646-CA csa7-1 ca csISO121Canadian1 }
+ { CSA_Z243.4-1985-2 iso-ir-122 ISO646-CA2 csa7-2 csISO122Canadian2 }
+ { CSA_Z243.4-1985-gr iso-ir-123 csISO123CSAZ24341985gr }
+ { ISO_8859-6:1987 iso-ir-127 ISO_8859-6 ISO-8859-6 ECMA-114 ASMO-708
+ arabic csISOLatinArabic }
+ { ISO_8859-6-E csISO88596E ISO-8859-6-E }
+ { ISO_8859-6-I csISO88596I ISO-8859-6-I }
+ { ISO_8859-7:1987 iso-ir-126 ISO_8859-7 ISO-8859-7 ELOT_928 ECMA-118
+ greek greek8 csISOLatinGreek }
+ { T.101-G2 iso-ir-128 csISO128T101G2 }
+ { ISO_8859-8:1988 iso-ir-138 ISO_8859-8 ISO-8859-8 hebrew
+ csISOLatinHebrew }
+ { ISO_8859-8-E csISO88598E ISO-8859-8-E }
+ { ISO_8859-8-I csISO88598I ISO-8859-8-I }
+ { CSN_369103 iso-ir-139 csISO139CSN369103 }
+ { JUS_I.B1.002 iso-ir-141 ISO646-YU js yu csISO141JUSIB1002 }
+ { ISO_6937-2-add iso-ir-142 csISOTextComm }
+ { IEC_P27-1 iso-ir-143 csISO143IECP271 }
+ { ISO_8859-5:1988 iso-ir-144 ISO_8859-5 ISO-8859-5 cyrillic
+ csISOLatinCyrillic }
+ { JUS_I.B1.003-serb iso-ir-146 serbian csISO146Serbian }
+ { JUS_I.B1.003-mac macedonian iso-ir-147 csISO147Macedonian }
+ { ISO_8859-9:1989 iso-ir-148 ISO_8859-9 ISO-8859-9 latin5 l5 csISOLatin5 }
+ { greek-ccitt iso-ir-150 csISO150 csISO150GreekCCITT }
+ { NC_NC00-10:81 cuba iso-ir-151 ISO646-CU csISO151Cuba }
+ { ISO_6937-2-25 iso-ir-152 csISO6937Add }
+ { GOST_19768-74 ST_SEV_358-88 iso-ir-153 csISO153GOST1976874 }
+ { ISO_8859-supp iso-ir-154 latin1-2-5 csISO8859Supp }
+ { ISO_10367-box iso-ir-155 csISO10367Box }
+ { ISO-8859-10 iso-ir-157 l6 ISO_8859-10:1992 csISOLatin6 latin6 }
+ { latin-lap lap iso-ir-158 csISO158Lap }
+ { JIS_X0212-1990 x0212 iso-ir-159 csISO159JISX02121990 }
+ { DS_2089 DS2089 ISO646-DK dk csISO646Danish }
+ { us-dk csUSDK }
+ { dk-us csDKUS }
+ { JIS_X0201 X0201 csHalfWidthKatakana }
+ { KSC5636 ISO646-KR csKSC5636 }
+ { ISO-10646-UCS-2 csUnicode }
+ { ISO-10646-UCS-4 csUCS4 }
+ { DEC-MCS dec csDECMCS }
+ { hp-roman8 roman8 r8 csHPRoman8 }
+ { macintosh mac csMacintosh }
+ { IBM037 cp037 ebcdic-cp-us ebcdic-cp-ca ebcdic-cp-wt ebcdic-cp-nl
+ csIBM037 }
+ { IBM038 EBCDIC-INT cp038 csIBM038 }
+ { IBM273 CP273 csIBM273 }
+ { IBM274 EBCDIC-BE CP274 csIBM274 }
+ { IBM275 EBCDIC-BR cp275 csIBM275 }
+ { IBM277 EBCDIC-CP-DK EBCDIC-CP-NO csIBM277 }
+ { IBM278 CP278 ebcdic-cp-fi ebcdic-cp-se csIBM278 }
+ { IBM280 CP280 ebcdic-cp-it csIBM280 }
+ { IBM281 EBCDIC-JP-E cp281 csIBM281 }
+ { IBM284 CP284 ebcdic-cp-es csIBM284 }
+ { IBM285 CP285 ebcdic-cp-gb csIBM285 }
+ { IBM290 cp290 EBCDIC-JP-kana csIBM290 }
+ { IBM297 cp297 ebcdic-cp-fr csIBM297 }
+ { IBM420 cp420 ebcdic-cp-ar1 csIBM420 }
+ { IBM423 cp423 ebcdic-cp-gr csIBM423 }
+ { IBM424 cp424 ebcdic-cp-he csIBM424 }
+ { IBM437 cp437 437 csPC8CodePage437 }
+ { IBM500 CP500 ebcdic-cp-be ebcdic-cp-ch csIBM500 }
+ { IBM775 cp775 csPC775Baltic }
+ { IBM850 cp850 850 csPC850Multilingual }
+ { IBM851 cp851 851 csIBM851 }
+ { IBM852 cp852 852 csPCp852 }
+ { IBM855 cp855 855 csIBM855 }
+ { IBM857 cp857 857 csIBM857 }
+ { IBM860 cp860 860 csIBM860 }
+ { IBM861 cp861 861 cp-is csIBM861 }
+ { IBM862 cp862 862 csPC862LatinHebrew }
+ { IBM863 cp863 863 csIBM863 }
+ { IBM864 cp864 csIBM864 }
+ { IBM865 cp865 865 csIBM865 }
+ { IBM866 cp866 866 csIBM866 }
+ { IBM868 CP868 cp-ar csIBM868 }
+ { IBM869 cp869 869 cp-gr csIBM869 }
+ { IBM870 CP870 ebcdic-cp-roece ebcdic-cp-yu csIBM870 }
+ { IBM871 CP871 ebcdic-cp-is csIBM871 }
+ { IBM880 cp880 EBCDIC-Cyrillic csIBM880 }
+ { IBM891 cp891 csIBM891 }
+ { IBM903 cp903 csIBM903 }
+ { IBM904 cp904 904 csIBBM904 }
+ { IBM905 CP905 ebcdic-cp-tr csIBM905 }
+ { IBM918 CP918 ebcdic-cp-ar2 csIBM918 }
+ { IBM1026 CP1026 csIBM1026 }
+ { EBCDIC-AT-DE csIBMEBCDICATDE }
+ { EBCDIC-AT-DE-A csEBCDICATDEA }
+ { EBCDIC-CA-FR csEBCDICCAFR }
+ { EBCDIC-DK-NO csEBCDICDKNO }
+ { EBCDIC-DK-NO-A csEBCDICDKNOA }
+ { EBCDIC-FI-SE csEBCDICFISE }
+ { EBCDIC-FI-SE-A csEBCDICFISEA }
+ { EBCDIC-FR csEBCDICFR }
+ { EBCDIC-IT csEBCDICIT }
+ { EBCDIC-PT csEBCDICPT }
+ { EBCDIC-ES csEBCDICES }
+ { EBCDIC-ES-A csEBCDICESA }
+ { EBCDIC-ES-S csEBCDICESS }
+ { EBCDIC-UK csEBCDICUK }
+ { EBCDIC-US csEBCDICUS }
+ { UNKNOWN-8BIT csUnknown8BiT }
+ { MNEMONIC csMnemonic }
+ { MNEM csMnem }
+ { VISCII csVISCII }
+ { VIQR csVIQR }
+ { KOI8-R csKOI8R }
+ { IBM00858 CCSID00858 CP00858 PC-Multilingual-850+euro }
+ { IBM00924 CCSID00924 CP00924 ebcdic-Latin9--euro }
+ { IBM01140 CCSID01140 CP01140 ebcdic-us-37+euro }
+ { IBM01141 CCSID01141 CP01141 ebcdic-de-273+euro }
+ { IBM01142 CCSID01142 CP01142 ebcdic-dk-277+euro ebcdic-no-277+euro }
+ { IBM01143 CCSID01143 CP01143 ebcdic-fi-278+euro ebcdic-se-278+euro }
+ { IBM01144 CCSID01144 CP01144 ebcdic-it-280+euro }
+ { IBM01145 CCSID01145 CP01145 ebcdic-es-284+euro }
+ { IBM01146 CCSID01146 CP01146 ebcdic-gb-285+euro }
+ { IBM01147 CCSID01147 CP01147 ebcdic-fr-297+euro }
+ { IBM01148 CCSID01148 CP01148 ebcdic-international-500+euro }
+ { IBM01149 CCSID01149 CP01149 ebcdic-is-871+euro }
+ { IBM1047 IBM-1047 }
+ { PTCP154 csPTCP154 PT154 CP154 Cyrillic-Asian }
+ { Amiga-1251 Ami1251 Amiga1251 Ami-1251 }
+ { UNICODE-1-1 csUnicode11 }
+ { CESU-8 csCESU-8 }
+ { BOCU-1 csBOCU-1 }
+ { UNICODE-1-1-UTF-7 csUnicode11UTF7 }
+ { ISO-8859-14 iso-ir-199 ISO_8859-14:1998 ISO_8859-14 latin8 iso-celtic
+ l8 }
+ { ISO-8859-15 ISO_8859-15 Latin-9 }
+ { ISO-8859-16 iso-ir-226 ISO_8859-16:2001 ISO_8859-16 latin10 l10 }
+ { GBK CP936 MS936 windows-936 }
+ { JIS_Encoding csJISEncoding }
+ { Shift_JIS MS_Kanji csShiftJIS }
+ { Extended_UNIX_Code_Packed_Format_for_Japanese csEUCPkdFmtJapanese
+ EUC-JP }
+ { Extended_UNIX_Code_Fixed_Width_for_Japanese csEUCFixWidJapanese }
+ { ISO-10646-UCS-Basic csUnicodeASCII }
+ { ISO-10646-Unicode-Latin1 csUnicodeLatin1 ISO-10646 }
+ { ISO-Unicode-IBM-1261 csUnicodeIBM1261 }
+ { ISO-Unicode-IBM-1268 csUnicodeIBM1268 }
+ { ISO-Unicode-IBM-1276 csUnicodeIBM1276 }
+ { ISO-Unicode-IBM-1264 csUnicodeIBM1264 }
+ { ISO-Unicode-IBM-1265 csUnicodeIBM1265 }
+ { ISO-8859-1-Windows-3.0-Latin-1 csWindows30Latin1 }
+ { ISO-8859-1-Windows-3.1-Latin-1 csWindows31Latin1 }
+ { ISO-8859-2-Windows-Latin-2 csWindows31Latin2 }
+ { ISO-8859-9-Windows-Latin-5 csWindows31Latin5 }
+ { Adobe-Standard-Encoding csAdobeStandardEncoding }
+ { Ventura-US csVenturaUS }
+ { Ventura-International csVenturaInternational }
+ { PC8-Danish-Norwegian csPC8DanishNorwegian }
+ { PC8-Turkish csPC8Turkish }
+ { IBM-Symbols csIBMSymbols }
+ { IBM-Thai csIBMThai }
+ { HP-Legal csHPLegal }
+ { HP-Pi-font csHPPiFont }
+ { HP-Math8 csHPMath8 }
+ { Adobe-Symbol-Encoding csHPPSMath }
+ { HP-DeskTop csHPDesktop }
+ { Ventura-Math csVenturaMath }
+ { Microsoft-Publishing csMicrosoftPublishing }
+ { Windows-31J csWindows31J }
+ { GB2312 csGB2312 }
+ { Big5 csBig5 }
+}
+
+proc tcl_encoding {enc} {
+ global encoding_aliases
+ set names [encoding names]
+ set lcnames [string tolower $names]
+ set enc [string tolower $enc]
+ set i [lsearch -exact $lcnames $enc]
+ if {$i < 0} {
+ # look for "isonnn" instead of "iso-nnn" or "iso_nnn"
+ if {[regsub {^iso[-_]} $enc iso encx]} {
+ set i [lsearch -exact $lcnames $encx]
+ }
+ }
+ if {$i < 0} {
+ foreach l $encoding_aliases {
+ set ll [string tolower $l]
+ if {[lsearch -exact $ll $enc] < 0} continue
+ # look through the aliases for one that tcl knows about
+ foreach e $ll {
+ set i [lsearch -exact $lcnames $e]
+ if {$i < 0} {
+ if {[regsub {^iso[-_]} $e iso ex]} {
+ set i [lsearch -exact $lcnames $ex]
+ }
+ }
+ if {$i >= 0} break
+ }
+ break
+ }
+ }
+ if {$i >= 0} {
+ return [lindex $names $i]
+ }
+ return {}
+}
+
+# defaults...
+set datemode 0
+set diffopts "-U 5 -p"
+set wrcomcmd "git-diff-tree --stdin -p --pretty"
+
+set gitencoding {}
+catch {
+ set gitencoding [exec git-repo-config --get i18n.commitencoding]
+}
+if {$gitencoding == ""} {
+ set gitencoding "utf-8"
+}
+set tclencoding [tcl_encoding $gitencoding]
+if {$tclencoding == {}} {
+ puts stderr "Warning: encoding $gitencoding is not supported by Tcl/Tk"
+}
+
+set mainfont {Helvetica 9}
+set textfont {Courier 9}
+set findmergefiles 0
+set maxgraphpct 50
+set maxwidth 16
+set revlistorder 0
+set fastdate 0
+set uparrowlen 7
+set downarrowlen 7
+set mingaplen 30
+
+set colors {green red blue magenta darkgrey brown orange}
+
+catch {source ~/.gitk}
+
+set namefont $mainfont
+
+font create optionfont -family sans-serif -size -12
+
+set revtreeargs {}
+foreach arg $argv {
+ switch -regexp -- $arg {
+ "^$" { }
+ "^-d" { set datemode 1 }
+ default {
+ lappend revtreeargs $arg
+ }
+ }
+}
+
+# check that we can find a .git directory somewhere...
+set gitdir [gitdir]
+if {![file isdirectory $gitdir]} {
+ error_popup "Cannot find the git directory \"$gitdir\"."
+ exit 1
+}
+
+set history {}
+set historyindex 0
+
+set optim_delay 16
+
+set stopped 0
+set stuffsaved 0
+set patchnum 0
+setcoords
+makewindow $revtreeargs
+readrefs
+getcommits $revtreeargs