+
+proc drawrest {level startix} {
+ global phase stopped redisplaying selectedline
+ global datemode currentparents todo
+ global numcommits
+ global nextupdate startmsecs startcommits idline
+
+ if {$level >= 0} {
+ set phase drawgraph
+ set startid [lindex $startcommits $startix]
+ set startline -1
+ if {$startid != {}} {
+ set startline $idline($startid)
+ }
+ while 1 {
+ if {$stopped} break
+ drawcommitline $level
+ set hard [updatetodo $level $datemode]
+ if {$numcommits == $startline} {
+ lappend todo $startid
+ set hard 1
+ incr startix
+ set startid [lindex $startcommits $startix]
+ set startline -1
+ if {$startid != {}} {
+ set startline $idline($startid)
+ }
+ }
+ if {$hard} {
+ set level [decidenext]
+ if {$level < 0} break
+ drawslants $level
+ }
+ if {[clock clicks -milliseconds] >= $nextupdate} {
+ update
+ incr nextupdate 100
+ }
+ }
+ }
+ set phase {}
+ set drawmsecs [expr [clock clicks -milliseconds] - $startmsecs]
+ #puts "overall $drawmsecs ms for $numcommits commits"
+ if {$redisplaying} {
+ if {$stopped == 0 && [info exists selectedline]} {
+ selectline $selectedline 0
+ }
+ if {$stopped == 1} {
+ set stopped 0
+ after idle drawgraph
+ } else {
+ set redisplaying 0
+ }
+ }
+}
+
+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 $matches
+}
+
+proc dofind {} {
+ global findtype findloc findstring markedmatches commitinfo
+ global numcommits lineid linehtag linentag linedtag
+ global mainfont namefont canv canv2 canv3 selectedline
+ global matchinglines foundstring foundstrlen
+
+ stopfindproc
+ unmarkmatches
+ focus .
+ set matchinglines {}
+ if {$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
+ if {$findloc == "Files"} {
+ findfiles
+ return
+ }
+ if {![info exists selectedline]} {
+ set oldsel -1
+ } else {
+ set oldsel $selectedline
+ }
+ set didsel 0
+ set fldtypes {Headline Author Date Committer CDate Comment}
+ for {set l 0} {$l < $numcommits} {incr l} {
+ set id $lineid($l)
+ 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"} {
+ markmatches $canv $l $f $linehtag($l) $matches $mainfont
+ } elseif {$ty == "Author"} {
+ markmatches $canv2 $l $f $linentag($l) $matches $namefont
+ } elseif {$ty == "Date"} {
+ 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 $textcursor
+ }
+ }
+}
+
+proc findpatches {} {
+ global findstring selectedline numcommits
+ global findprocpid findprocfile
+ global finddidsel ctext lineid findinprogress
+ global findinsertpos
+
+ if {$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 $lineid($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 idline 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: $line"
+ stopfindproc
+ return
+ }
+ if {![info exists idline($id)]} {
+ puts stderr "spurious id: $id"
+ return
+ }
+ set l $idline($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 $l
+ set finddidsel 1
+ }
+}
+
+proc findfiles {} {
+ global selectedline numcommits lineid ctext
+ global ffileline finddidsel parents nparents
+ global findinprogress findstartline findinsertpos
+ global treediffs fdiffids fdiffsneeded fdiffpos
+ global findmergefiles
+
+ if {$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 $lineid($l)
+ if {$findmergefiles || $nparents($id) == 1} {
+ foreach p $parents($id) {
+ if {![info exists treediffs([list $id $p])]} {
+ append diffsneeded "$id $p\n"
+ lappend fdiffsneeded [list $id $p]
+ }
+ }
+ }
+ 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 fdiffids}
+ set fdiffpos 0
+ fconfigure $df -blocking 0
+ fileevent $df readable [list readfilediffs $df]
+ }
+
+ set finddidsel 0
+ set findinsertpos end
+ set id $lineid($l)
+ set p [lindex $parents($id) 0]
+ . config -cursor watch
+ settextcursor watch
+ set findinprogress 1
+ findcont [list $id $p]
+ update
+}
+
+proc readfilediffs {df} {
+ global findids fdiffids 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 findids]} {
+ set ids $findids
+ stopfindproc
+ bell
+ error_popup "Couldn't find diffs for {$ids}"
+ }
+ }
+ return
+ }
+ if {[regexp {^([0-9a-f]{40}) \(from ([0-9a-f]{40})\)} $line match id p]} {
+ # start of a new string of diffs
+ donefilediff
+ set fdiffids [list $id $p]
+ set fdiffs {}
+ } elseif {[string match ":*" $line]} {
+ lappend fdiffs [lindex $line 5]
+ }
+}
+
+proc donefilediff {} {
+ global fdiffids fdiffs treediffs findids
+ global fdiffsneeded fdiffpos
+
+ if {[info exists fdiffids]} {
+ while {[lindex $fdiffsneeded $fdiffpos] ne $fdiffids
+ && $fdiffpos < [llength $fdiffsneeded]} {
+ # git-diff-tree doesn't output anything for a commit
+ # which doesn't change anything
+ set nullids [lindex $fdiffsneeded $fdiffpos]
+ set treediffs($nullids) {}
+ if {[info exists findids] && $nullids eq $findids} {
+ unset findids
+ findcont $nullids
+ }
+ incr fdiffpos
+ }
+ incr fdiffpos
+
+ if {![info exists treediffs($fdiffids)]} {
+ set treediffs($fdiffids) $fdiffs
+ }
+ if {[info exists findids] && $fdiffids eq $findids} {
+ unset findids
+ findcont $fdiffids
+ }
+ }
+}
+
+proc findcont {ids} {
+ global findids treediffs parents nparents
+ global ffileline findstartline finddidsel
+ global lineid numcommits matchinglines findinprogress
+ global findmergefiles
+
+ set id [lindex $ids 0]
+ set p [lindex $ids 1]
+ set pi [lsearch -exact $parents($id) $p]
+ set l $ffileline
+ while 1 {
+ if {$findmergefiles || $nparents($id) == 1} {
+ if {![info exists treediffs($ids)]} {
+ set findids $ids
+ set ffileline $l
+ return
+ }
+ set doesmatch 0
+ foreach f $treediffs($ids) {
+ set x [findmatches $f]
+ if {$x != {}} {
+ set doesmatch 1
+ break
+ }
+ }
+ if {$doesmatch} {
+ insertmatch $l $id
+ set pi $nparents($id)
+ }
+ } else {
+ set pi $nparents($id)
+ }
+ if {[incr pi] >= $nparents($id)} {
+ set pi 0
+ if {[incr l] >= $numcommits} {
+ set l 0
+ }
+ if {$l == $findstartline} break
+ set id $lineid($l)
+ }
+ set p [lindex $parents($id) $pi]
+ set ids [list $id $p]
+ }
+ stopfindproc
+ if {!$finddidsel} {
+ bell
+ }
+}
+
+# mark a commit as matching by putting a yellow background
+# behind the headline
+proc markheadline {l id} {
+ global canv mainfont linehtag commitinfo
+
+ 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 $t
+ }
+}
+
+proc unmarkmatches {} {
+ global matchinglines findids
+ allcanvs delete matches
+ catch {unset matchinglines}
+ catch {unset findids}
+}
+
+proc selcanvline {w x y} {
+ global canv canvy0 ctext linespc
+ global lineid linehtag linentag linedtag rowtextx
+ set ymax [lindex [$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)"
+}
+
+proc selectline {l isnew} {
+ global canv canv2 canv3 ctext commitinfo selectedline
+ global lineid linehtag linentag linedtag
+ global canvy0 linespc parents nparents children nchildren
+ global cflist currentid sha1entry
+ global commentend idtags idline
+
+ $canv delete hover
+ if {![info exists lineid($l)] || ![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 $t
+ set y [expr {$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 / $ymax]
+ }
+
+ if {$isnew} {
+ addtohistory [list selectline $l 0]
+ }
+
+ set selectedline $l
+
+ set id $lineid($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
+ $ctext mark set fmark.0 0.0
+ $ctext mark gravity fmark.0 left
+ set info $commitinfo($id)
+ $ctext insert end "Author: [lindex $info 1] [lindex $info 2]\n"
+ $ctext insert end "Committer: [lindex $info 3] [lindex $info 4]\n"
+ if {[info exists idtags($id)]} {
+ $ctext insert end "Tags:"
+ foreach tag $idtags($id) {
+ $ctext insert end " $tag"
+ }
+ $ctext insert end "\n"
+ }
+
+ set commentstart [$ctext index "end - 1c"]
+ set comment {}
+ 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]
+ $ctext insert end $comment
+ $ctext insert end "\n"
+
+ # make anything that looks like a SHA1 ID be a clickable link
+ set links [regexp -indices -all -inline {[0-9a-f]{40}} $comment]
+ set i 0
+ foreach l $links {
+ set s [lindex $l 0]
+ set e [lindex $l 1]
+ set linkid [string range $comment $s $e]
+ if {![info exists idline($linkid)]} continue
+ incr e
+ $ctext tag add link "$commentstart + $s c" "$commentstart + $e c"
+ $ctext tag add link$i "$commentstart + $s c" "$commentstart + $e c"
+ $ctext tag bind link$i <1> [list selectline $idline($linkid) 1]
+ incr i
+ }
+ $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 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 [concat $id $parents($id)]
+ } elseif {$nparents($id) > 1} {
+ 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 diffmergegca mergefilelist diffpindex
+
+ set diffmergeid $id
+ set diffpindex -1
+ set diffmergegca [findgca $parents($id)]
+ if {[info exists mergefilelist($id)]} {
+ if {$mergefilelist($id) ne {}} {
+ showmergediff
+ }
+ } else {
+ contmergediff {}
+ }
+}
+
+proc findgca {ids} {
+ set gca {}
+ foreach id $ids {
+ if {$gca eq {}} {
+ set gca $id
+ } else {
+ if {[catch {
+ set gca [exec git-merge-base $gca $id]
+ } err]} {
+ return {}
+ }
+ }
+ }
+ return $gca
+}
+
+proc contmergediff {ids} {
+ global diffmergeid diffpindex parents nparents diffmergegca
+ global treediffs mergefilelist diffids treepending
+
+ # diff the child against each of the parents, and diff
+ # each of the parents against the GCA.
+ while 1 {
+ if {[lindex $ids 0] == $diffmergeid && $diffmergegca ne {}} {
+ set ids [list [lindex $ids 1] $diffmergegca]
+ } else {
+ if {[incr diffpindex] >= $nparents($diffmergeid)} break
+ set p [lindex $parents($diffmergeid) $diffpindex]
+ set ids [list $diffmergeid $p]
+ }
+ if {![info exists treediffs($ids)]} {
+ set diffids $ids
+ if {![info exists treepending]} {
+ gettreediffs $ids
+ }
+ return
+ }
+ }
+
+ # If a file in some parent is different from the child and also
+ # different from the GCA, then it's interesting.
+ # If we don't have a GCA, then a file is interesting if it is
+ # different from the child in all the parents.
+ if {$diffmergegca ne {}} {
+ set files {}
+ foreach p $parents($diffmergeid) {
+ set gcadiffs $treediffs([list $p $diffmergegca])
+ foreach f $treediffs([list $diffmergeid $p]) {
+ if {[lsearch -exact $files $f] < 0
+ && [lsearch -exact $gcadiffs $f] >= 0} {
+ lappend files $f
+ }
+ }
+ }
+ set files [lsort $files]
+ } else {
+ set p [lindex $parents($diffmergeid) 0]
+ set files $treediffs([list $diffmergeid $p])
+ for {set i 1} {$i < $nparents($diffmergeid) && $files ne {}} {incr i} {
+ set p [lindex $parents($diffmergeid) $i]
+ set df $treediffs([list $diffmergeid $p])
+ set nf {}
+ foreach f $files {
+ if {[lsearch -exact $df $f] >= 0} {
+ lappend nf $f
+ }
+ }
+ set files $nf
+ }
+ }
+
+ set mergefilelist($diffmergeid) $files
+ if {$files ne {}} {
+ showmergediff
+ }
+}
+
+proc showmergediff {} {
+ global cflist diffmergeid mergefilelist parents
+ global diffopts diffinhunk currentfile currenthunk filelines
+ global diffblocked groupfilelast mergefds groupfilenum grouphunks
+
+ set files $mergefilelist($diffmergeid)
+ foreach f $files {
+ $cflist insert end $f
+ }
+ set env(GIT_DIFF_OPTS) $diffopts
+ set flist {}
+ catch {unset currentfile}
+ catch {unset currenthunk}
+ catch {unset filelines}
+ catch {unset groupfilenum}
+ catch {unset grouphunks}
+ set groupfilelast -1
+ foreach p $parents($diffmergeid) {
+ set cmd [list | git-diff-tree -p $p $diffmergeid]
+ set cmd [concat $cmd $mergefilelist($diffmergeid)]
+ if {[catch {set f [open $cmd r]} err]} {
+ error_popup "Error getting diffs: $err"
+ foreach f $flist {
+ catch {close $f}
+ }
+ return
+ }
+ lappend flist $f
+ set ids [list $diffmergeid $p]
+ set mergefds($ids) $f
+ set diffinhunk($ids) 0
+ set diffblocked($ids) 0
+ fconfigure $f -blocking 0
+ fileevent $f readable [list getmergediffline $f $ids $diffmergeid]
+ }
+}
+
+proc getmergediffline {f ids id} {
+ global diffmergeid diffinhunk diffoldlines diffnewlines
+ global currentfile currenthunk
+ global diffoldstart diffnewstart diffoldlno diffnewlno
+ global diffblocked mergefilelist
+ global noldlines nnewlines difflcounts filelines
+
+ set n [gets $f line]
+ if {$n < 0} {
+ if {![eof $f]} return
+ }
+
+ if {!([info exists diffmergeid] && $diffmergeid == $id)} {
+ if {$n < 0} {
+ close $f
+ }
+ return
+ }
+
+ if {$diffinhunk($ids) != 0} {
+ set fi $currentfile($ids)
+ if {$n > 0 && [regexp {^[-+ \\]} $line match]} {
+ # continuing an existing hunk
+ set line [string range $line 1 end]
+ set p [lindex $ids 1]
+ if {$match eq "-" || $match eq " "} {
+ set filelines($p,$fi,$diffoldlno($ids)) $line
+ incr diffoldlno($ids)
+ }
+ if {$match eq "+" || $match eq " "} {
+ set filelines($id,$fi,$diffnewlno($ids)) $line
+ incr diffnewlno($ids)
+ }
+ if {$match eq " "} {
+ if {$diffinhunk($ids) == 2} {
+ lappend difflcounts($ids) \
+ [list $noldlines($ids) $nnewlines($ids)]
+ set noldlines($ids) 0
+ set diffinhunk($ids) 1
+ }
+ incr noldlines($ids)
+ } elseif {$match eq "-" || $match eq "+"} {
+ if {$diffinhunk($ids) == 1} {
+ lappend difflcounts($ids) [list $noldlines($ids)]
+ set noldlines($ids) 0
+ set nnewlines($ids) 0
+ set diffinhunk($ids) 2
+ }
+ if {$match eq "-"} {
+ incr noldlines($ids)
+ } else {
+ incr nnewlines($ids)
+ }
+ }
+ # and if it's \ No newline at end of line, then what?
+ return
+ }
+ # end of a hunk
+ if {$diffinhunk($ids) == 1 && $noldlines($ids) != 0} {
+ lappend difflcounts($ids) [list $noldlines($ids)]
+ } elseif {$diffinhunk($ids) == 2
+ && ($noldlines($ids) != 0 || $nnewlines($ids) != 0)} {
+ lappend difflcounts($ids) [list $noldlines($ids) $nnewlines($ids)]
+ }
+ set currenthunk($ids) [list $currentfile($ids) \
+ $diffoldstart($ids) $diffnewstart($ids) \
+ $diffoldlno($ids) $diffnewlno($ids) \
+ $difflcounts($ids)]
+ set diffinhunk($ids) 0
+ # -1 = need to block, 0 = unblocked, 1 = is blocked
+ set diffblocked($ids) -1
+ processhunks
+ if {$diffblocked($ids) == -1} {
+ fileevent $f readable {}
+ set diffblocked($ids) 1
+ }
+ }
+
+ if {$n < 0} {
+ # eof
+ if {!$diffblocked($ids)} {
+ close $f
+ set currentfile($ids) [llength $mergefilelist($diffmergeid)]
+ set currenthunk($ids) [list $currentfile($ids) 0 0 0 0 {}]
+ processhunks
+ }
+ } elseif {[regexp {^diff --git a/(.*) b/} $line match fname]} {
+ # start of a new file
+ set currentfile($ids) \
+ [lsearch -exact $mergefilelist($diffmergeid) $fname]
+ } elseif {[regexp {^@@ -([0-9]+),([0-9]+) \+([0-9]+),([0-9]+) @@(.*)} \
+ $line match f1l f1c f2l f2c rest]} {
+ if {[info exists currentfile($ids)] && $currentfile($ids) >= 0} {
+ # start of a new hunk
+ if {$f1l == 0 && $f1c == 0} {
+ set f1l 1
+ }
+ if {$f2l == 0 && $f2c == 0} {
+ set f2l 1
+ }
+ set diffinhunk($ids) 1
+ set diffoldstart($ids) $f1l
+ set diffnewstart($ids) $f2l
+ set diffoldlno($ids) $f1l
+ set diffnewlno($ids) $f2l
+ set difflcounts($ids) {}
+ set noldlines($ids) 0
+ set nnewlines($ids) 0
+ }
+ }
+}
+
+proc processhunks {} {
+ global diffmergeid parents nparents currenthunk
+ global mergefilelist diffblocked mergefds
+ global grouphunks grouplinestart grouplineend groupfilenum
+
+ set nfiles [llength $mergefilelist($diffmergeid)]
+ while 1 {
+ set fi $nfiles
+ set lno 0
+ # look for the earliest hunk
+ foreach p $parents($diffmergeid) {
+ set ids [list $diffmergeid $p]
+ if {![info exists currenthunk($ids)]} return
+ set i [lindex $currenthunk($ids) 0]
+ set l [lindex $currenthunk($ids) 2]
+ if {$i < $fi || ($i == $fi && $l < $lno)} {
+ set fi $i
+ set lno $l
+ set pi $p
+ }
+ }
+
+ if {$fi < $nfiles} {
+ set ids [list $diffmergeid $pi]
+ set hunk $currenthunk($ids)
+ unset currenthunk($ids)
+ if {$diffblocked($ids) > 0} {
+ fileevent $mergefds($ids) readable \
+ [list getmergediffline $mergefds($ids) $ids $diffmergeid]
+ }
+ set diffblocked($ids) 0
+
+ if {[info exists groupfilenum] && $groupfilenum == $fi
+ && $lno <= $grouplineend} {
+ # add this hunk to the pending group
+ lappend grouphunks($pi) $hunk
+ set endln [lindex $hunk 4]
+ if {$endln > $grouplineend} {
+ set grouplineend $endln
+ }
+ continue
+ }
+ }
+
+ # succeeding stuff doesn't belong in this group, so
+ # process the group now
+ if {[info exists groupfilenum]} {
+ processgroup
+ unset groupfilenum
+ unset grouphunks
+ }
+
+ if {$fi >= $nfiles} break
+
+ # start a new group
+ set groupfilenum $fi
+ set grouphunks($pi) [list $hunk]
+ set grouplinestart $lno
+ set grouplineend [lindex $hunk 4]
+ }
+}
+
+proc processgroup {} {
+ global groupfilelast groupfilenum difffilestart
+ global mergefilelist diffmergeid ctext filelines
+ global parents diffmergeid diffoffset
+ global grouphunks grouplinestart grouplineend nparents
+ global mergemax
+
+ $ctext conf -state normal
+ set id $diffmergeid
+ set f $groupfilenum
+ if {$groupfilelast != $f} {
+ $ctext insert end "\n"
+ set here [$ctext index "end - 1c"]
+ set difffilestart($f) $here
+ set mark fmark.[expr {$f + 1}]
+ $ctext mark set $mark $here
+ $ctext mark gravity $mark left
+ set header [lindex $mergefilelist($id) $f]
+ set l [expr {(78 - [string length $header]) / 2}]
+ set pad [string range "----------------------------------------" 1 $l]
+ $ctext insert end "$pad $header $pad\n" filesep
+ set groupfilelast $f
+ foreach p $parents($id) {
+ set diffoffset($p) 0
+ }
+ }
+
+ $ctext insert end "@@" msep
+ set nlines [expr {$grouplineend - $grouplinestart}]
+ set events {}
+ set pnum 0
+ foreach p $parents($id) {
+ set startline [expr {$grouplinestart + $diffoffset($p)}]
+ set ol $startline
+ set nl $grouplinestart
+ if {[info exists grouphunks($p)]} {
+ foreach h $grouphunks($p) {
+ set l [lindex $h 2]
+ if {$nl < $l} {
+ for {} {$nl < $l} {incr nl} {
+ set filelines($p,$f,$ol) $filelines($id,$f,$nl)
+ incr ol
+ }
+ }
+ foreach chunk [lindex $h 5] {
+ if {[llength $chunk] == 2} {
+ set olc [lindex $chunk 0]
+ set nlc [lindex $chunk 1]
+ set nnl [expr {$nl + $nlc}]
+ lappend events [list $nl $nnl $pnum $olc $nlc]
+ incr ol $olc
+ set nl $nnl
+ } else {
+ incr ol [lindex $chunk 0]
+ incr nl [lindex $chunk 0]
+ }
+ }
+ }
+ }
+ if {$nl < $grouplineend} {
+ for {} {$nl < $grouplineend} {incr nl} {
+ set filelines($p,$f,$ol) $filelines($id,$f,$nl)
+ incr ol
+ }
+ }
+ set nlines [expr {$ol - $startline}]
+ $ctext insert end " -$startline,$nlines" msep
+ incr pnum
+ }
+
+ set nlines [expr {$grouplineend - $grouplinestart}]
+ $ctext insert end " +$grouplinestart,$nlines @@\n" msep
+
+ set events [lsort -integer -index 0 $events]
+ set nevents [llength $events]
+ set nmerge $nparents($diffmergeid)
+ set l $grouplinestart
+ for {set i 0} {$i < $nevents} {set i $j} {
+ set nl [lindex $events $i 0]
+ while {$l < $nl} {
+ $ctext insert end " $filelines($id,$f,$l)\n"
+ incr l
+ }
+ set e [lindex $events $i]
+ set enl [lindex $e 1]
+ set j $i
+ set active {}
+ while 1 {
+ set pnum [lindex $e 2]
+ set olc [lindex $e 3]
+ set nlc [lindex $e 4]
+ if {![info exists delta($pnum)]} {
+ set delta($pnum) [expr {$olc - $nlc}]
+ lappend active $pnum
+ } else {
+ incr delta($pnum) [expr {$olc - $nlc}]
+ }
+ if {[incr j] >= $nevents} break
+ set e [lindex $events $j]
+ if {[lindex $e 0] >= $enl} break
+ if {[lindex $e 1] > $enl} {
+ set enl [lindex $e 1]
+ }
+ }
+ set nlc [expr {$enl - $l}]
+ set ncol mresult
+ set bestpn -1
+ if {[llength $active] == $nmerge - 1} {
+ # no diff for one of the parents, i.e. it's identical
+ for {set pnum 0} {$pnum < $nmerge} {incr pnum} {
+ if {![info exists delta($pnum)]} {
+ if {$pnum < $mergemax} {
+ lappend ncol m$pnum
+ } else {
+ lappend ncol mmax
+ }
+ break
+ }
+ }
+ } elseif {[llength $active] == $nmerge} {
+ # all parents are different, see if one is very similar
+ set bestsim 30
+ for {set pnum 0} {$pnum < $nmerge} {incr pnum} {
+ set sim [similarity $pnum $l $nlc $f \
+ [lrange $events $i [expr {$j-1}]]]
+ if {$sim > $bestsim} {
+ set bestsim $sim
+ set bestpn $pnum
+ }
+ }
+ if {$bestpn >= 0} {
+ lappend ncol m$bestpn
+ }
+ }
+ set pnum -1
+ foreach p $parents($id) {
+ incr pnum
+ if {![info exists delta($pnum)] || $pnum == $bestpn} continue
+ set olc [expr {$nlc + $delta($pnum)}]
+ set ol [expr {$l + $diffoffset($p)}]
+ incr diffoffset($p) $delta($pnum)
+ unset delta($pnum)
+ for {} {$olc > 0} {incr olc -1} {
+ $ctext insert end "-$filelines($p,$f,$ol)\n" m$pnum
+ incr ol
+ }
+ }
+ set endl [expr {$l + $nlc}]
+ if {$bestpn >= 0} {
+ # show this pretty much as a normal diff
+ set p [lindex $parents($id) $bestpn]
+ set ol [expr {$l + $diffoffset($p)}]
+ incr diffoffset($p) $delta($bestpn)
+ unset delta($bestpn)
+ for {set k $i} {$k < $j} {incr k} {
+ set e [lindex $events $k]
+ if {[lindex $e 2] != $bestpn} continue
+ set nl [lindex $e 0]
+ set ol [expr {$ol + $nl - $l}]
+ for {} {$l < $nl} {incr l} {
+ $ctext insert end "+$filelines($id,$f,$l)\n" $ncol
+ }
+ set c [lindex $e 3]
+ for {} {$c > 0} {incr c -1} {
+ $ctext insert end "-$filelines($p,$f,$ol)\n" m$bestpn
+ incr ol
+ }
+ set nl [lindex $e 1]
+ for {} {$l < $nl} {incr l} {
+ $ctext insert end "+$filelines($id,$f,$l)\n" mresult
+ }
+ }
+ }
+ for {} {$l < $endl} {incr l} {
+ $ctext insert end "+$filelines($id,$f,$l)\n" $ncol
+ }
+ }
+ while {$l < $grouplineend} {
+ $ctext insert end " $filelines($id,$f,$l)\n"
+ incr l
+ }
+ $ctext conf -state disabled
+}
+
+proc similarity {pnum l nlc f events} {
+ global diffmergeid parents diffoffset filelines
+
+ set id $diffmergeid
+ set p [lindex $parents($id) $pnum]
+ set ol [expr {$l + $diffoffset($p)}]
+ set endl [expr {$l + $nlc}]
+ set same 0
+ set diff 0
+ foreach e $events {
+ if {[lindex $e 2] != $pnum} continue
+ set nl [lindex $e 0]
+ set ol [expr {$ol + $nl - $l}]
+ for {} {$l < $nl} {incr l} {
+ incr same [string length $filelines($id,$f,$l)]
+ incr same
+ }
+ set oc [lindex $e 3]
+ for {} {$oc > 0} {incr oc -1} {
+ incr diff [string length $filelines($p,$f,$ol)]
+ incr diff
+ incr ol
+ }
+ set nl [lindex $e 1]
+ for {} {$l < $nl} {incr l} {
+ incr diff [string length $filelines($id,$f,$l)]
+ incr diff
+ }
+ }
+ for {} {$l < $endl} {incr l} {
+ incr same [string length $filelines($id,$f,$l)]
+ incr same
+ }
+ if {$same == 0} {
+ return 0
+ }
+ return [expr {200 * $same / (2 * $same + $diff)}]
+}
+
+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 {}
+ set id [lindex $ids 0]
+ set p [lindex $ids 1]
+ if [catch {set gdtf [open "|git-diff-tree -r $p $id" 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} {
+ gettreediffs $diffids
+ } else {
+ if {[info exists diffmergeid]} {
+ contmergediff $ids
+ } 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 id [lindex $ids 0]
+ set p [lindex $ids 1]
+ set env(GIT_DIFF_OPTS) $diffopts
+ set cmd [list | git-diff-tree -r -p -C $p $id]
+ 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
+ global gaudydiff
+
+ 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 {[regexp {^(---|\+\+\+)} $line]} {
+ set diffinhdr 0
+ } elseif {[regexp {^@@ -([0-9]+),([0-9]+) \+([0-9]+),([0-9]+) @@(.*)} \
+ $line match f1l f1c f2l f2c rest]} {
+ if {$gaudydiff} {
+ $ctext insert end "\t" hunksep
+ $ctext insert end " $f1l " d0 " $f2l " d1
+ $ctext insert end " $rest \n" hunksep
+ } else {
+ $ctext insert end "$line\n" hunksep
+ }
+ set diffinhdr 0
+ } else {
+ set x [string range $line 0 0]
+ if {$x == "-" || $x == "+"} {
+ set tag [expr {$x == "+"}]
+ if {$gaudydiff} {
+ set line [string range $line 1 end]
+ }
+ $ctext insert end "$line\n" d$tag
+ } elseif {$x == " "} {
+ if {$gaudydiff} {
+ set line [string range $line 1 end]
+ }
+ $ctext insert end "$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
+
+ set linespc [font metrics $mainfont -linespace]
+ set charspc [font measure $mainfont "m"]
+ set canvy0 [expr 3 + 0.5 * $linespc]
+ set canvx0 [expr 3 + 0.5 * $linespc]
+ set xspc1(0) $linespc
+ set xspc2 $linespc
+}
+
+proc redisplay {} {
+ global stopped redisplaying phase
+ if {$stopped > 1} return
+ if {$phase == "getcommits"} return
+ set redisplaying 1
+ if {$phase == "drawgraph" || $phase == "incrdraw"} {
+ set stopped 1
+ } else {
+ drawgraph
+ }
+}
+
+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 {
+ $sha1but conf -state disabled -relief flat -text "SHA1 ID: "
+ }
+}
+
+proc gotocommit {} {
+ global sha1string currentid idline tagids
+ global lineid numcommits
+
+ if {$sha1string == {}
+ || ([info exists currentid] && $sha1string == $currentid)} return
+ if {[info exists tagids($sha1string)]} {
+ set id $tagids($sha1string)
+ } else {
+ set id [string tolower $sha1string]
+ if {[regexp {^[0-9a-f]{4,39}$} $id]} {
+ set matches {}
+ for {set l 0} {$l < $numcommits} {incr l} {
+ if {[string match $id* $lineid($l)]} {
+ lappend matches $lineid($l)
+ }
+ }
+ if {$matches ne {}} {
+ if {[llength $matches] > 1} {
+ error_popup "Short SHA1 id $id is ambiguous"
+ return
+ }
+ set id [lindex $matches 0]
+ }
+ }
+ }
+ if {[info exists idline($id)]} {
+ selectline $idline($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)]} 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]
+ $canv raise $t
+}
+
+proc lineclick {x y id isnew} {
+ global ctext commitinfo children cflist canv
+
+ unmarkmatches
+ unselectline
+ if {$isnew} {
+ addtohistory [list lineclick $x $x $id 0]
+ }
+ $canv delete hover
+ # 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"
+ $ctext insert end "\tDate:\t[lindex $info 2]\n"
+ if {[info exists children($id)]} {
+ $ctext insert end "\nChildren:"
+ set i 0
+ foreach child $children($id) {
+ incr i
+ 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]"
+ $ctext insert end "\n\tDate:\t[lindex $info 2]\n"
+ }
+ }
+ $ctext conf -state disabled
+
+ $cflist delete 0 end
+}
+
+proc selbyid {id} {
+ global idline
+ if {[info exists idline($id)]} {
+ selectline $idline($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 idline selectedline rowmenuid
+
+ if {![info exists selectedline] || $idline($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 $y
+}
+
+proc diffvssel {dirn} {
+ global rowmenuid selectedline lineid
+
+ if {![info exists selectedline]} return
+ if {$dirn} {
+ set oldid $lineid($selectedline)
+ set newid $rowmenuid
+ } else {
+ set oldid $rowmenuid
+ set newid $lineid($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 $newid $oldid]
+}
+
+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 $top.tag
+}
+
+proc domktag {} {
+ global mktagtop env tagids idtags
+ global idpos idline linehtag canv selectedline
+
+ set id [$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
+ $canv delete tag.$id
+ set xt [eval drawtags $id $idpos($id)]
+ $canv coords $linehtag($idline($id)) $xt [lindex $idpos($id) 2]
+ if {[info exists selectedline] && $selectedline == $idline($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 doquit {} {
+ global stopped
+ set stopped 100
+ destroy .
+}
+
+# defaults...
+set datemode 0
+set boldnames 0
+set diffopts "-U 5 -p"
+set wrcomcmd "git-diff-tree --stdin -p --pretty"
+
+set mainfont {Helvetica 9}
+set textfont {Courier 9}
+set findmergefiles 0
+set gaudydiff 0
+set maxgraphpct 50
+
+set colors {green red blue magenta darkgrey brown orange}
+
+catch {source ~/.gitk}
+
+set namefont $mainfont
+if {$boldnames} {
+ lappend namefont bold
+}
+
+set revtreeargs {}
+foreach arg $argv {
+ switch -regexp -- $arg {
+ "^$" { }
+ "^-b" { set boldnames 1 }
+ "^-d" { set datemode 1 }
+ default {
+ lappend revtreeargs $arg
+ }
+ }
+}
+
+set history {}
+set historyindex 0
+
+set stopped 0
+set redisplaying 0
+set stuffsaved 0
+set patchnum 0
+setcoords
+makewindow
+readrefs
+getcommits $revtreeargs