+proc startdiff {} {
+ global treediffs diffids treepending
+
+ if {![info exists treediffs($diffids)]} {
+ if {![info exists treepending]} {
+ gettreediffs $diffids
+ }
+ } else {
+ addtocflist $diffids
+ }
+}
+
+proc selnextline {dir} {
+ global selectedline
+ if {![info exists selectedline]} return
+ set l [expr $selectedline + $dir]
+ unmarkmatches
+ selectline $l
+}
+
+proc addtocflist {ids} {
+ global diffids treediffs cflist
+ if {$ids != $diffids} {
+ gettreediffs $diffids
+ return
+ }
+ foreach f $treediffs($ids) {
+ $cflist insert end $f
+ }
+ getblobdiffs $ids
+}
+
+proc gettreediffs {ids} {
+ global treediffs parents treepending
+ set treepending $ids
+ set treediffs($ids) {}
+ 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 "gettreediffline $gdtf {$ids}"
+}
+
+proc gettreediffline {gdtf ids} {
+ global treediffs treepending
+ set n [gets $gdtf line]
+ if {$n < 0} {
+ if {![eof $gdtf]} return
+ close $gdtf
+ unset treepending
+ addtocflist $ids
+ return
+ }
+ set file [lindex $line 5]
+ lappend treediffs($ids) $file
+}
+
+proc getblobdiffs {ids} {
+ global diffopts blobdifffd env curdifftag curtagstart
+ global diffindex difffilestart nextupdate
+
+ set id [lindex $ids 0]
+ set p [lindex $ids 1]
+ set env(GIT_DIFF_OPTS) $diffopts
+ if [catch {set bdf [open "|git-diff-tree -r -p $p $id" r]} err] {
+ puts "error getting diffs: $err"
+ return
+ }
+ fconfigure $bdf -blocking 0
+ set blobdifffd($ids) $bdf
+ set curdifftag Comments
+ set curtagstart 0.0
+ set diffindex 0
+ catch {unset difffilestart}
+ fileevent $bdf readable "getblobdiffline $bdf {$ids}"
+ set nextupdate [expr {[clock clicks -milliseconds] + 100}]
+}
+
+proc getblobdiffline {bdf ids} {
+ global diffids blobdifffd ctext curdifftag curtagstart seenfile
+ global diffnexthead diffnextnote diffindex difffilestart
+ global nextupdate
+
+ set n [gets $bdf line]
+ if {$n < 0} {
+ if {[eof $bdf]} {
+ close $bdf
+ if {$ids == $diffids && $bdf == $blobdifffd($ids)} {
+ $ctext tag add $curdifftag $curtagstart end
+ set seenfile($curdifftag) 1
+ }
+ }
+ return
+ }
+ if {$ids != $diffids || $bdf != $blobdifffd($ids)} {
+ return
+ }
+ $ctext conf -state normal
+ if {[regexp {^---[ \t]+([^/])*/(.*)} $line match s1 fname]} {
+ # start of a new file
+ $ctext insert end "\n"
+ $ctext tag add $curdifftag $curtagstart end
+ set seenfile($curdifftag) 1
+ set curtagstart [$ctext index "end - 1c"]
+ set header $fname
+ if {[info exists diffnexthead]} {
+ set fname $diffnexthead
+ set header "$diffnexthead ($diffnextnote)"
+ unset diffnexthead
+ }
+ set here [$ctext index "end - 1c"]
+ set difffilestart($diffindex) $here
+ incr diffindex
+ # start mark names at fmark.1 for first file
+ $ctext mark set fmark.$diffindex $here
+ $ctext mark gravity fmark.$diffindex 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
+ } elseif {[string range $line 0 2] == "+++"} {
+ # no need to do anything with this
+ } elseif {[regexp {^Created: (.*) \((mode: *[0-7]*)\)} $line match fn m]} {
+ set diffnexthead $fn
+ set diffnextnote "created, mode $m"
+ } elseif {[string range $line 0 8] == "Deleted: "} {
+ set diffnexthead [string range $line 9 end]
+ set diffnextnote "deleted"
+ } elseif {[regexp {^diff --git a/(.*) b/} $line match fn]} {
+ # save the filename in case the next thing is "new file mode ..."
+ set diffnexthead $fn
+ set diffnextnote "modified"
+ } elseif {[regexp {^new file mode ([0-7]+)} $line match m]} {
+ set diffnextnote "new file, mode $m"
+ } elseif {[string range $line 0 11] == "deleted file"} {
+ set diffnextnote "deleted"
+ } elseif {[regexp {^@@ -([0-9]+),([0-9]+) \+([0-9]+),([0-9]+) @@(.*)} \
+ $line match f1l f1c f2l f2c rest]} {
+ $ctext insert end "\t" hunksep
+ $ctext insert end " $f1l " d0 " $f2l " d1
+ $ctext insert end " $rest \n" hunksep
+ } else {
+ set x [string range $line 0 0]
+ if {$x == "-" || $x == "+"} {
+ set tag [expr {$x == "+"}]
+ set line [string range $line 1 end]
+ $ctext insert end "$line\n" d$tag
+ } elseif {$x == " "} {
+ set line [string range $line 1 end]
+ $ctext insert end "$line\n"
+ } elseif {$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 $curtagstart end
+ set seenfile($curdifftag) 1
+ 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]} {
+ $ctext yview $difffilestart($i)
+ break
+ }
+ }
+}
+
+proc listboxsel {} {
+ global ctext cflist currentid treediffs seenfile
+ 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
+ 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 * $linespc]
+}
+
+proc redisplay {} {
+ global selectedline stopped redisplaying phase
+ if {$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 selectedline 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 {
+ $sha1but conf -state disabled -relief flat -text "SHA1 ID: "
+ }
+}
+
+proc gotocommit {} {
+ global sha1string currentid idline tagids
+ if {$sha1string == {}
+ || ([info exists currentid] && $sha1string == $currentid)} return
+ if {[info exists tagids($sha1string)]} {
+ set id $tagids($sha1string)
+ } else {
+ set id [string tolower $sha1string]
+ }
+ if {[info exists idline($id)]} {
+ selectline $idline($id)
+ return
+ }
+ if {[regexp {^[0-9a-fA-F]{40}$} $sha1string]} {
+ set type "SHA1 id"
+ } else {
+ set type "Tag"
+ }
+ error_popup "$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} {
+ global ctext commitinfo children cflist canv
+
+ unmarkmatches
+ $canv delete hover
+ # fill the details pane with info about this line
+ $ctext conf -state normal
+ $ctext delete 0.0 end
+ $ctext insert end "Parent:\n "
+ catch {destroy $ctext.$id}
+ button $ctext.$id -text "Go:" -command "selbyid $id" \
+ -padx 4 -pady 0
+ $ctext window create end -window $ctext.$id -align center
+ set info $commitinfo($id)
+ $ctext insert end "\t[lindex $info 0]\n"
+ $ctext insert end "\tAuthor:\t[lindex $info 1]\n"
+ $ctext insert end "\tDate:\t[lindex $info 2]\n"
+ $ctext insert end "\tID:\t$id\n"
+ if {[info exists children($id)]} {
+ $ctext insert end "\nChildren:"
+ foreach child $children($id) {
+ $ctext insert end "\n "
+ catch {destroy $ctext.$child}
+ button $ctext.$child -text "Go:" -command "selbyid $child" \
+ -padx 4 -pady 0
+ $ctext window create end -window $ctext.$child -align center
+ set info $commitinfo($child)
+ $ctext insert end "\t[lindex $info 0]"
+ }
+ }
+ $ctext conf -state disabled
+
+ $cflist delete 0 end
+}
+
+proc selbyid {id} {
+ global idline
+ if {[info exists idline($id)]} {
+ selectline $idline($id)
+ }
+}
+
+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 $y
+}
+
+proc diffvssel {dirn} {
+ global rowmenuid selectedline lineid
+ global ctext cflist
+ global diffids commitinfo
+
+ if {![info exists selectedline]} return
+ if {$dirn} {
+ set oldid $lineid($selectedline)
+ set newid $rowmenuid
+ } else {
+ set oldid $rowmenuid
+ set newid $lineid($selectedline)
+ }
+ $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 $oldid\n "
+ $ctext insert end [lindex $commitinfo($oldid) 0]
+ $ctext insert end "\n\nTo $newid\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
+ set diffids [list $newid $oldid]
+ startdiff
+}
+
+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 ".git"
+ if {[info exists env(GIT_DIR)]} {
+ set dir $env(GIT_DIR)
+ }
+ 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
+ }
+}
+
+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"