#!/bin/sh
# Tcl ignores the next line -*- tcl -*- \
-exec wish "$0" -- "${1+$@}"
+exec wish "$0" -- "$@"
# Copyright (C) 2005 Paul Mackerras. All rights reserved.
# This program is free software; it may be used, copied, modified
# and distributed under the terms of the GNU General Public Licence,
# either version 2, or (at your option) any later version.
-set datemode 0
-set boldnames 0
-set revtreeargs {}
-
-foreach arg $argv {
- switch -regexp -- $arg {
- "^$" { }
- "^-d" { set datemode 1 }
- "^-b" { set boldnames 1 }
- "^-.*" {
- puts stderr "unrecognized option $arg"
- exit 1
- }
- default {
- lappend revtreeargs $arg
- }
+proc gitdir {} {
+ global env
+ if {[info exists env(GIT_DIR)]} {
+ return $env(GIT_DIR)
+ } else {
+ return ".git"
}
}
proc getcommits {rargs} {
- global commits parents cdate nparents children nchildren
- if {$rargs == {}} {
- set rargs HEAD
+ global commits commfd phase canv mainfont env
+ global startmsecs nextupdate ncmupdate
+ global ctext maincursor textcursor leftover
+
+ # 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 commits {}
- foreach c [split [eval exec git-rev-tree $rargs] "\n"] {
- set i 0
- set cid {}
- foreach f $c {
- if {$i == 0} {
- set d $f
- } else {
- set id [lindex [split $f :] 0]
- if {![info exists nchildren($id)]} {
- set children($id) {}
- set nchildren($id) 0
- }
- if {$i == 1} {
- set cid $id
- lappend commits $id
- set parents($id) {}
- set cdate($id) $d
- set nparents($id) 0
- } else {
- lappend parents($cid) $id
- incr nparents($cid)
- incr nchildren($id)
- lappend children($id) $cid
+ set phase getcommits
+ set startmsecs [clock clicks -milliseconds]
+ set nextupdate [expr $startmsecs + 100]
+ set ncmupdate 1
+ if [catch {
+ set parse_args [concat --default HEAD $rargs]
+ set parsed_args [split [eval exec git-rev-parse $parse_args] "\n"]
+ }] {
+ # if git-rev-parse failed for some reason...
+ if {$rargs == {}} {
+ set rargs HEAD
+ }
+ set parsed_args $rargs
+ }
+ if [catch {
+ set commfd [open "|git-rev-list --header --topo-order --parents $parsed_args" r]
+ } err] {
+ puts stderr "Error executing git-rev-list: $err"
+ exit 1
+ }
+ set leftover {}
+ fconfigure $commfd -blocking 0 -translation lf
+ fileevent $commfd readable [list getcommitlines $commfd]
+ $canv delete all
+ $canv create text 3 3 -anchor nw -text "Reading commits..." \
+ -font $mainfont -tags textitems
+ . config -cursor watch
+ settextcursor watch
+}
+
+proc getcommitlines {commfd} {
+ global commits parents cdate children
+ global commitlisted phase commitinfo nextupdate
+ global stopped redisplaying leftover
+
+ set stuff [read $commfd]
+ if {$stuff == {}} {
+ if {![eof $commfd]} return
+ # set it blocking so we wait for the process to terminate
+ fconfigure $commfd -blocking 1
+ if {![catch {close $commfd} err]} {
+ after idle finishcommits
+ return
+ }
+ if {[string range $err 0 4] == "usage"} {
+ set err \
+{Gitk: error reading commits: bad arguments to git-rev-list.
+(Note: arguments to gitk are passed to git-rev-list
+to allow selection of commits to be displayed.)}
+ } else {
+ set err "Error reading commits: $err"
+ }
+ error_popup $err
+ exit 1
+ }
+ set start 0
+ while 1 {
+ set i [string first "\0" $stuff $start]
+ if {$i < 0} {
+ append leftover [string range $stuff $start end]
+ return
+ }
+ set cmit [string range $stuff $start [expr {$i - 1}]]
+ if {$start == 0} {
+ set cmit "$leftover$cmit"
+ set leftover {}
+ }
+ set start [expr {$i + 1}]
+ set j [string first "\n" $cmit]
+ set ok 0
+ if {$j >= 0} {
+ set ids [string range $cmit 0 [expr {$j - 1}]]
+ set ok 1
+ foreach id $ids {
+ if {![regexp {^[0-9a-f]{40}$} $id]} {
+ set ok 0
+ break
+ }
+ }
+ }
+ if {!$ok} {
+ set shortcmit $cmit
+ if {[string length $shortcmit] > 80} {
+ set shortcmit "[string range $shortcmit 0 80]..."
+ }
+ error_popup "Can't parse git-rev-list output: {$shortcmit}"
+ exit 1
+ }
+ set id [lindex $ids 0]
+ set olds [lrange $ids 1 end]
+ set cmit [string range $cmit [expr {$j + 1}] end]
+ lappend commits $id
+ set commitlisted($id) 1
+ parsecommit $id $cmit 1 [lrange $ids 1 end]
+ drawcommit $id
+ if {[clock clicks -milliseconds] >= $nextupdate} {
+ doupdate 1
+ }
+ while {$redisplaying} {
+ set redisplaying 0
+ if {$stopped == 1} {
+ set stopped 0
+ set phase "getcommits"
+ foreach id $commits {
+ drawcommit $id
+ if {$stopped} break
+ if {[clock clicks -milliseconds] >= $nextupdate} {
+ doupdate 1
+ }
}
}
- incr i
}
}
}
+proc doupdate {reading} {
+ global commfd nextupdate numcommits ncmupdate
+
+ if {$reading} {
+ fileevent $commfd readable {}
+ }
+ update
+ set nextupdate [expr {[clock clicks -milliseconds] + 100}]
+ if {$numcommits < 100} {
+ set ncmupdate [expr {$numcommits + 1}]
+ } elseif {$numcommits < 10000} {
+ set ncmupdate [expr {$numcommits + 10}]
+ } else {
+ set ncmupdate [expr {$numcommits + 100}]
+ }
+ if {$reading} {
+ fileevent $commfd readable [list getcommitlines $commfd]
+ }
+}
+
proc readcommit {id} {
- global commitinfo
+ if [catch {set contents [exec git-cat-file commit $id]}] return
+ parsecommit $id $contents 0 {}
+}
+
+proc parsecommit {id contents listed olds} {
+ global commitinfo children nchildren parents nparents cdate ncleft
+
set inhdr 1
set comment {}
set headline {}
set audate {}
set comname {}
set comdate {}
- foreach line [split [exec git-cat-file commit $id] "\n"] {
+ if {![info exists nchildren($id)]} {
+ set children($id) {}
+ set nchildren($id) 0
+ set ncleft($id) 0
+ }
+ set parents($id) $olds
+ set nparents($id) [llength $olds]
+ foreach p $olds {
+ if {![info exists nchildren($p)]} {
+ set children($p) [list $id]
+ set nchildren($p) 1
+ set ncleft($p) 1
+ } elseif {[lsearch -exact $children($p) $id] < 0} {
+ lappend children($p) $id
+ incr nchildren($p)
+ incr ncleft($p)
+ }
+ }
+ foreach line [split $contents "\n"] {
if {$inhdr} {
if {$line == {}} {
set inhdr 0
}
} else {
if {$comment == {}} {
- set headline $line
+ set headline [string trim $line]
} else {
append comment "\n"
}
+ if {!$listed} {
+ # git-rev-list indents the comment by 4 spaces;
+ # if we got this via git-cat-file, add the indentation
+ append comment " "
+ }
append comment $line
}
}
set audate [clock format $audate -format "%Y-%m-%d %H:%M:%S"]
}
if {$comdate != {}} {
+ set cdate($id) $comdate
set comdate [clock format $comdate -format "%Y-%m-%d %H:%M:%S"]
}
- set commitinfo($id) [list $comment $auname $audate $comname $comdate]
- return [list $headline $auname $audate]
+ set commitinfo($id) [list $headline $auname $audate \
+ $comname $comdate $comment]
}
-proc makewindow {} {
- global canv linespc charspc ctext
- frame .clist
- set canv .clist.canv
- canvas $canv -height [expr 30 * $linespc + 4] -width [expr 90 * $charspc] \
- -bg white -relief sunk -bd 1 \
- -yscrollincr $linespc -yscrollcommand ".clist.csb set"
- scrollbar .clist.csb -command "$canv yview" -highlightthickness 0
- pack .clist.csb -side right -fill y
- pack $canv -side bottom -fill both -expand 1
- pack .clist -side top -fill both -expand 1
- set ctext .ctext
- text $ctext -bg white
- pack $ctext -side top -fill x -expand 1
-
- bind $canv <1> {selcanvline %x %y}
- bind $canv <B1-Motion> {selcanvline %x %y}
- bind $canv <ButtonRelease-4> "$canv yview scroll -5 u"
- bind $canv <ButtonRelease-5> "$canv yview scroll 5 u"
- bind $canv <2> "$canv scan mark 0 %y"
- bind $canv <B2-Motion> "$canv scan dragto 0 %y"
- bind . <Key-Prior> "$canv yview scroll -1 p"
- bind . <Key-Next> "$canv yview scroll 1 p"
- bind . <Key-Delete> "$canv yview scroll -1 p"
- bind . <Key-BackSpace> "$canv yview scroll -1 p"
- bind . <Key-space> "$canv yview scroll 1 p"
- bind . <Key-Up> "$canv yview scroll -1 u"
- bind . <Key-Down> "$canv yview scroll 1 u"
- bind . Q "set stopped 1; destroy ."
-}
-
-proc truncatetofit {str width font} {
- if {[font measure $font $str] <= $width} {
- return $str
- }
- set best 0
- set bad [string length $str]
- set tmp $str
- while {$best < $bad - 1} {
- set try [expr {int(($best + $bad) / 2)}]
- set tmp "[string range $str 0 [expr $try-1]]..."
- if {[font measure $font $tmp] <= $width} {
- set best $try
- } else {
- set bad $try
+proc readrefs {} {
+ global tagids idtags headids idheads tagcontents
+
+ set tags [glob -nocomplain -types f [gitdir]/refs/tags/*]
+ foreach f $tags {
+ catch {
+ set fd [open $f r]
+ set line [read $fd]
+ if {[regexp {^[0-9a-f]{40}} $line id]} {
+ set direct [file tail $f]
+ set tagids($direct) $id
+ lappend idtags($id) $direct
+ set tagblob [exec git-cat-file tag $id]
+ set contents [split $tagblob "\n"]
+ set obj {}
+ set type {}
+ set tag {}
+ foreach l $contents {
+ if {$l == {}} break
+ switch -- [lindex $l 0] {
+ "object" {set obj [lindex $l 1]}
+ "type" {set type [lindex $l 1]}
+ "tag" {set tag [string range $l 4 end]}
+ }
+ }
+ if {$obj != {} && $type == "commit" && $tag != {}} {
+ set tagids($tag) $obj
+ lappend idtags($obj) $tag
+ set tagcontents($tag) $tagblob
+ }
+ }
+ close $fd
+ }
+ }
+ set heads [glob -nocomplain -types f [gitdir]/refs/heads/*]
+ foreach f $heads {
+ catch {
+ set fd [open $f r]
+ set line [read $fd 40]
+ if {[regexp {^[0-9a-f]{40}} $line id]} {
+ set head [file tail $f]
+ set headids($head) $line
+ lappend idheads($line) $head
+ }
+ close $fd
}
}
- return $tmp
+ readotherrefs refs {} {tags heads}
}
-proc drawgraph {start} {
- global parents children nparents nchildren commits
- global canv mainfont namefont canvx0 canvy0 linespc namex datex
- global datemode cdate
- global lineid linehtag linentag linedtag
+proc readotherrefs {base dname excl} {
+ global otherrefids idotherrefs
- set colors {green red blue magenta darkgrey brown orange}
- set ncolors [llength $colors]
- set nextcolor 0
- set colormap($start) [lindex $colors 0]
- foreach id $commits {
- set ncleft($id) $nchildren($id)
- }
- set todo [list $start]
- set level 0
- set canvy $canvy0
- set linestarty(0) $canvy
- set nullentry -1
- set lineno -1
- while 1 {
- incr lineno
- set nlines [llength $todo]
- set id [lindex $todo $level]
- set lineid($lineno) $id
- foreach p $parents($id) {
- incr ncleft($p) -1
- }
- set cinfo [readcommit $id]
- set x [expr $canvx0 + $level * $linespc]
- set y2 [expr $canvy + $linespc]
- if {$linestarty($level) < $canvy} {
- set t [$canv create line $x $linestarty($level) $x $canvy \
- -width 2 -fill $colormap($id)]
- $canv lower $t
- set linestarty($level) $canvy
- }
- set t [$canv create oval [expr $x - 4] [expr $canvy - 4] \
- [expr $x + 3] [expr $canvy + 3] \
- -fill blue -outline black -width 1]
- $canv raise $t
- set xt [expr $canvx0 + $nlines * $linespc]
- set headline [lindex $cinfo 0]
- set name [lindex $cinfo 1]
- set date [lindex $cinfo 2]
- set headline [truncatetofit $headline [expr $namex-$xt-$linespc] \
- $mainfont]
- set linehtag($lineno) [$canv create text $xt $canvy -anchor w \
- -text $headline -font $mainfont ]
- set name [truncatetofit $name [expr $datex-$namex-$linespc] $namefont]
- set linentag($lineno) [$canv create text $namex $canvy -anchor w \
- -text $name -font $namefont]
- set linedtag($lineno) [$canv create text $datex $canvy -anchor w \
- -text $date -font $mainfont]
- if {!$datemode && $nparents($id) == 1} {
- set p [lindex $parents($id) 0]
- if {$ncleft($p) == 0 && [lsearch -exact $todo $p] < 0} {
- set todo [lreplace $todo $level $level $p]
- set colormap($p) $colormap($id)
- set canvy $y2
- $canv conf -scrollregion [list 0 0 0 $canvy]
- update
- continue
+ set git [gitdir]
+ set files [glob -nocomplain -types f [file join $git $base *]]
+ foreach f $files {
+ catch {
+ set fd [open $f r]
+ set line [read $fd 40]
+ if {[regexp {^[0-9a-f]{40}} $line id]} {
+ set name "$dname[file tail $f]"
+ set otherrefids($name) $id
+ lappend idotherrefs($id) $name
}
+ close $fd
}
+ }
+ set dirs [glob -nocomplain -types d [file join $git $base *]]
+ foreach d $dirs {
+ set dir [file tail $d]
+ if {[lsearch -exact $excl $dir] >= 0} continue
+ readotherrefs [file join $base $dir] "$dname$dir/" {}
+ }
+}
+
+proc error_popup msg {
+ set w .error
+ toplevel $w
+ wm transient $w .
+ message $w.m -text $msg -justify center -aspect 400
+ pack $w.m -side top -fill x -padx 20 -pady 20
+ button $w.ok -text OK -command "destroy $w"
+ pack $w.ok -side bottom -fill x
+ bind $w <Visibility> "grab $w; focus $w"
+ tkwait window $w
+}
+
+proc makewindow {} {
+ global canv canv2 canv3 linespc charspc ctext cflist textfont
+ global findtype findtypemenu findloc findstring fstring geometry
+ global entries sha1entry sha1string sha1but
+ global maincursor textcursor curtextcursor
+ global rowctxmenu gaudydiff mergemax
+
+ menu .bar
+ .bar add cascade -label "File" -menu .bar.file
+ menu .bar.file
+ .bar.file add command -label "Reread references" -command rereadrefs
+ .bar.file add command -label "Quit" -command doquit
+ menu .bar.help
+ .bar add cascade -label "Help" -menu .bar.help
+ .bar.help add command -label "About gitk" -command about
+ . configure -menu .bar
+
+ if {![info exists geometry(canv1)]} {
+ set geometry(canv1) [expr 45 * $charspc]
+ set geometry(canv2) [expr 30 * $charspc]
+ set geometry(canv3) [expr 15 * $charspc]
+ set geometry(canvh) [expr 25 * $linespc + 4]
+ set geometry(ctextw) 80
+ set geometry(ctexth) 30
+ set geometry(cflistw) 30
+ }
+ panedwindow .ctop -orient vertical
+ if {[info exists geometry(width)]} {
+ .ctop conf -width $geometry(width) -height $geometry(height)
+ set texth [expr {$geometry(height) - $geometry(canvh) - 56}]
+ set geometry(ctexth) [expr {($texth - 8) /
+ [font metrics $textfont -linespace]}]
+ }
+ frame .ctop.top
+ frame .ctop.top.bar
+ pack .ctop.top.bar -side bottom -fill x
+ set cscroll .ctop.top.csb
+ scrollbar $cscroll -command {allcanvs yview} -highlightthickness 0
+ pack $cscroll -side right -fill y
+ panedwindow .ctop.top.clist -orient horizontal -sashpad 0 -handlesize 4
+ pack .ctop.top.clist -side top -fill both -expand 1
+ .ctop add .ctop.top
+ set canv .ctop.top.clist.canv
+ canvas $canv -height $geometry(canvh) -width $geometry(canv1) \
+ -bg white -bd 0 \
+ -yscrollincr $linespc -yscrollcommand "$cscroll set"
+ .ctop.top.clist add $canv
+ set canv2 .ctop.top.clist.canv2
+ canvas $canv2 -height $geometry(canvh) -width $geometry(canv2) \
+ -bg white -bd 0 -yscrollincr $linespc
+ .ctop.top.clist add $canv2
+ set canv3 .ctop.top.clist.canv3
+ canvas $canv3 -height $geometry(canvh) -width $geometry(canv3) \
+ -bg white -bd 0 -yscrollincr $linespc
+ .ctop.top.clist add $canv3
+ bind .ctop.top.clist <Configure> {resizeclistpanes %W %w}
+
+ set sha1entry .ctop.top.bar.sha1
+ set entries $sha1entry
+ set sha1but .ctop.top.bar.sha1label
+ button $sha1but -text "SHA1 ID: " -state disabled -relief flat \
+ -command gotocommit -width 8
+ $sha1but conf -disabledforeground [$sha1but cget -foreground]
+ pack .ctop.top.bar.sha1label -side left
+ entry $sha1entry -width 40 -font $textfont -textvariable sha1string
+ trace add variable sha1string write sha1change
+ pack $sha1entry -side left -pady 2
+
+ image create bitmap bm-left -data {
+ #define left_width 16
+ #define left_height 16
+ static unsigned char left_bits[] = {
+ 0x00, 0x00, 0xc0, 0x01, 0xe0, 0x00, 0x70, 0x00, 0x38, 0x00, 0x1c, 0x00,
+ 0x0e, 0x00, 0xff, 0x7f, 0xff, 0x7f, 0xff, 0x7f, 0x0e, 0x00, 0x1c, 0x00,
+ 0x38, 0x00, 0x70, 0x00, 0xe0, 0x00, 0xc0, 0x01};
+ }
+ image create bitmap bm-right -data {
+ #define right_width 16
+ #define right_height 16
+ static unsigned char right_bits[] = {
+ 0x00, 0x00, 0xc0, 0x01, 0x80, 0x03, 0x00, 0x07, 0x00, 0x0e, 0x00, 0x1c,
+ 0x00, 0x38, 0xff, 0x7f, 0xff, 0x7f, 0xff, 0x7f, 0x00, 0x38, 0x00, 0x1c,
+ 0x00, 0x0e, 0x00, 0x07, 0x80, 0x03, 0xc0, 0x01};
+ }
+ button .ctop.top.bar.leftbut -image bm-left -command goback \
+ -state disabled -width 26
+ pack .ctop.top.bar.leftbut -side left -fill y
+ button .ctop.top.bar.rightbut -image bm-right -command goforw \
+ -state disabled -width 26
+ pack .ctop.top.bar.rightbut -side left -fill y
+
+ button .ctop.top.bar.findbut -text "Find" -command dofind
+ pack .ctop.top.bar.findbut -side left
+ set findstring {}
+ set fstring .ctop.top.bar.findstring
+ lappend entries $fstring
+ entry $fstring -width 30 -font $textfont -textvariable findstring
+ pack $fstring -side left -expand 1 -fill x
+ set findtype Exact
+ set findtypemenu [tk_optionMenu .ctop.top.bar.findtype \
+ findtype Exact IgnCase Regexp]
+ set findloc "All fields"
+ tk_optionMenu .ctop.top.bar.findloc findloc "All fields" Headline \
+ Comments Author Committer Files Pickaxe
+ pack .ctop.top.bar.findloc -side right
+ pack .ctop.top.bar.findtype -side right
+ # for making sure type==Exact whenever loc==Pickaxe
+ trace add variable findloc write findlocchange
+
+ panedwindow .ctop.cdet -orient horizontal
+ .ctop add .ctop.cdet
+ frame .ctop.cdet.left
+ set ctext .ctop.cdet.left.ctext
+ text $ctext -bg white -state disabled -font $textfont \
+ -width $geometry(ctextw) -height $geometry(ctexth) \
+ -yscrollcommand ".ctop.cdet.left.sb set" -wrap none
+ scrollbar .ctop.cdet.left.sb -command "$ctext yview"
+ pack .ctop.cdet.left.sb -side right -fill y
+ pack $ctext -side left -fill both -expand 1
+ .ctop.cdet add .ctop.cdet.left
+
+ $ctext tag conf filesep -font [concat $textfont bold] -back "#aaaaaa"
+ if {$gaudydiff} {
+ $ctext tag conf hunksep -back blue -fore white
+ $ctext tag conf d0 -back "#ff8080"
+ $ctext tag conf d1 -back green
+ } else {
+ $ctext tag conf hunksep -fore blue
+ $ctext tag conf d0 -fore red
+ $ctext tag conf d1 -fore "#00a000"
+ $ctext tag conf m0 -fore red
+ $ctext tag conf m1 -fore blue
+ $ctext tag conf m2 -fore green
+ $ctext tag conf m3 -fore purple
+ $ctext tag conf m4 -fore brown
+ $ctext tag conf mmax -fore darkgrey
+ set mergemax 5
+ $ctext tag conf mresult -font [concat $textfont bold]
+ $ctext tag conf msep -font [concat $textfont bold]
+ $ctext tag conf found -back yellow
+ }
+
+ frame .ctop.cdet.right
+ set cflist .ctop.cdet.right.cfiles
+ listbox $cflist -bg white -selectmode extended -width $geometry(cflistw) \
+ -yscrollcommand ".ctop.cdet.right.sb set"
+ scrollbar .ctop.cdet.right.sb -command "$cflist yview"
+ pack .ctop.cdet.right.sb -side right -fill y
+ pack $cflist -side left -fill both -expand 1
+ .ctop.cdet add .ctop.cdet.right
+ bind .ctop.cdet <Configure> {resizecdetpanes %W %w}
+
+ pack .ctop -side top -fill both -expand 1
+
+ bindall <1> {selcanvline %W %x %y}
+ #bindall <B1-Motion> {selcanvline %W %x %y}
+ bindall <ButtonRelease-4> "allcanvs yview scroll -5 units"
+ bindall <ButtonRelease-5> "allcanvs yview scroll 5 units"
+ bindall <2> "allcanvs scan mark 0 %y"
+ bindall <B2-Motion> "allcanvs scan dragto 0 %y"
+ bind . <Key-Up> "selnextline -1"
+ bind . <Key-Down> "selnextline 1"
+ bind . <Key-Right> "goforw"
+ bind . <Key-Left> "goback"
+ bind . <Key-Prior> "allcanvs yview scroll -1 pages"
+ bind . <Key-Next> "allcanvs yview scroll 1 pages"
+ bindkey <Key-Delete> "$ctext yview scroll -1 pages"
+ bindkey <Key-BackSpace> "$ctext yview scroll -1 pages"
+ bindkey <Key-space> "$ctext yview scroll 1 pages"
+ bindkey p "selnextline -1"
+ bindkey n "selnextline 1"
+ bindkey z "goback"
+ bindkey x "goforw"
+ bindkey i "selnextline -1"
+ bindkey k "selnextline 1"
+ bindkey j "goback"
+ bindkey l "goforw"
+ bindkey b "$ctext yview scroll -1 pages"
+ bindkey d "$ctext yview scroll 18 units"
+ bindkey u "$ctext yview scroll -18 units"
+ bindkey / {findnext 1}
+ bindkey <Key-Return> {findnext 0}
+ bindkey ? findprev
+ bindkey f nextfile
+ bind . <Control-q> doquit
+ bind . <Control-f> dofind
+ bind . <Control-g> {findnext 0}
+ bind . <Control-r> findprev
+ bind . <Control-equal> {incrfont 1}
+ bind . <Control-KP_Add> {incrfont 1}
+ bind . <Control-minus> {incrfont -1}
+ bind . <Control-KP_Subtract> {incrfont -1}
+ bind $cflist <<ListboxSelect>> listboxsel
+ bind . <Destroy> {savestuff %W}
+ bind . <Button-1> "click %W"
+ bind $fstring <Key-Return> dofind
+ bind $sha1entry <Key-Return> gotocommit
+ bind $sha1entry <<PasteSelection>> clearsha1
+
+ set maincursor [. cget -cursor]
+ set textcursor [$ctext cget -cursor]
+ set curtextcursor $textcursor
+
+ set rowctxmenu .rowctxmenu
+ menu $rowctxmenu -tearoff 0
+ $rowctxmenu add command -label "Diff this -> selected" \
+ -command {diffvssel 0}
+ $rowctxmenu add command -label "Diff selected -> this" \
+ -command {diffvssel 1}
+ $rowctxmenu add command -label "Make patch" -command mkpatch
+ $rowctxmenu add command -label "Create tag" -command mktag
+ $rowctxmenu add command -label "Write commit to file" -command writecommit
+}
+
+# when we make a key binding for the toplevel, make sure
+# it doesn't get triggered when that key is pressed in the
+# find string entry widget.
+proc bindkey {ev script} {
+ global entries
+ bind . $ev $script
+ set escript [bind Entry $ev]
+ if {$escript == {}} {
+ set escript [bind Entry <Key>]
+ }
+ foreach e $entries {
+ bind $e $ev "$escript; break"
+ }
+}
+
+# set the focus back to the toplevel for any click outside
+# the entry widgets
+proc click {w} {
+ global entries
+ foreach e $entries {
+ if {$w == $e} return
+ }
+ focus .
+}
+
+proc savestuff {w} {
+ global canv canv2 canv3 ctext cflist mainfont textfont
+ global stuffsaved findmergefiles gaudydiff maxgraphpct
+ global maxwidth
+
+ if {$stuffsaved} return
+ if {![winfo viewable .]} return
+ catch {
+ set f [open "~/.gitk-new" w]
+ puts $f [list set mainfont $mainfont]
+ puts $f [list set textfont $textfont]
+ puts $f [list set findmergefiles $findmergefiles]
+ puts $f [list set gaudydiff $gaudydiff]
+ puts $f [list set maxgraphpct $maxgraphpct]
+ puts $f [list set maxwidth $maxwidth]
+ puts $f "set geometry(width) [winfo width .ctop]"
+ puts $f "set geometry(height) [winfo height .ctop]"
+ puts $f "set geometry(canv1) [expr [winfo width $canv]-2]"
+ puts $f "set geometry(canv2) [expr [winfo width $canv2]-2]"
+ puts $f "set geometry(canv3) [expr [winfo width $canv3]-2]"
+ puts $f "set geometry(canvh) [expr [winfo height $canv]-2]"
+ set wid [expr {([winfo width $ctext] - 8) \
+ / [font measure $textfont "0"]}]
+ puts $f "set geometry(ctextw) $wid"
+ set wid [expr {([winfo width $cflist] - 11) \
+ / [font measure [$cflist cget -font] "0"]}]
+ puts $f "set geometry(cflistw) $wid"
+ close $f
+ file rename -force "~/.gitk-new" "~/.gitk"
+ }
+ set stuffsaved 1
+}
- set oldtodo $todo
- set oldlevel $level
- set lines {}
- for {set i 0} {$i < $nlines} {incr i} {
- if {[lindex $todo $i] == {}} continue
- set oldstarty($i) $linestarty($i)
- if {$i != $level} {
- lappend lines [list $i [lindex $todo $i]]
+proc resizeclistpanes {win w} {
+ global oldwidth
+ if [info exists oldwidth($win)] {
+ set s0 [$win sash coord 0]
+ set s1 [$win sash coord 1]
+ if {$w < 60} {
+ set sash0 [expr {int($w/2 - 2)}]
+ set sash1 [expr {int($w*5/6 - 2)}]
+ } else {
+ set factor [expr {1.0 * $w / $oldwidth($win)}]
+ set sash0 [expr {int($factor * [lindex $s0 0])}]
+ set sash1 [expr {int($factor * [lindex $s1 0])}]
+ if {$sash0 < 30} {
+ set sash0 30
+ }
+ if {$sash1 < $sash0 + 20} {
+ set sash1 [expr $sash0 + 20]
+ }
+ if {$sash1 > $w - 10} {
+ set sash1 [expr $w - 10]
+ if {$sash0 > $sash1 - 20} {
+ set sash0 [expr $sash1 - 20]
+ }
}
}
- unset linestarty
- if {$nullentry >= 0} {
- set todo [lreplace $todo $nullentry $nullentry]
- if {$nullentry < $level} {
- incr level -1
+ $win sash place 0 $sash0 [lindex $s0 1]
+ $win sash place 1 $sash1 [lindex $s1 1]
+ }
+ set oldwidth($win) $w
+}
+
+proc resizecdetpanes {win w} {
+ global oldwidth
+ if [info exists oldwidth($win)] {
+ set s0 [$win sash coord 0]
+ if {$w < 60} {
+ set sash0 [expr {int($w*3/4 - 2)}]
+ } else {
+ set factor [expr {1.0 * $w / $oldwidth($win)}]
+ set sash0 [expr {int($factor * [lindex $s0 0])}]
+ if {$sash0 < 45} {
+ set sash0 45
+ }
+ if {$sash0 > $w - 15} {
+ set sash0 [expr $w - 15]
}
}
+ $win sash place 0 $sash0 [lindex $s0 1]
+ }
+ set oldwidth($win) $w
+}
- set badcolors [list $colormap($id)]
- foreach p $parents($id) {
- if {[info exists colormap($p)]} {
- lappend badcolors $colormap($p)
+proc allcanvs args {
+ global canv canv2 canv3
+ eval $canv $args
+ eval $canv2 $args
+ eval $canv3 $args
+}
+
+proc bindall {event action} {
+ global canv canv2 canv3
+ bind $canv $event $action
+ bind $canv2 $event $action
+ bind $canv3 $event $action
+}
+
+proc about {} {
+ set w .about
+ if {[winfo exists $w]} {
+ raise $w
+ return
+ }
+ toplevel $w
+ wm title $w "About gitk"
+ message $w.m -text {
+Gitk version 1.2
+
+Copyright © 2005 Paul Mackerras
+
+Use and redistribute under the terms of the GNU General Public License} \
+ -justify center -aspect 400
+ pack $w.m -side top -fill x -padx 20 -pady 20
+ button $w.ok -text Close -command "destroy $w"
+ pack $w.ok -side bottom
+}
+
+proc assigncolor {id} {
+ global commitinfo colormap commcolors colors nextcolor
+ global parents nparents children nchildren
+ global cornercrossings crossings
+
+ if [info exists colormap($id)] return
+ set ncolors [llength $colors]
+ if {$nparents($id) <= 1 && $nchildren($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)
}
}
- set todo [lreplace $todo $level $level]
- if {$nullentry > $level} {
- incr nullentry -1
+ if {[llength $badcolors] >= $ncolors} {
+ set badcolors {}
}
- set i $level
- foreach p $parents($id) {
- set k [lsearch -exact $todo $p]
- if {$k < 0} {
- set todo [linsert $todo $i $p]
- if {$nullentry >= $i} {
- incr nullentry
- }
- if {$nparents($id) == 1 && $nparents($p) == 1
- && $nchildren($p) == 1} {
- set colormap($p) $colormap($id)
- } else {
- for {set j 0} {$j <= $ncolors} {incr j} {
- if {[incr nextcolor] >= $ncolors} {
- set nextcolor 0
- }
- set c [lindex $colors $nextcolor]
- # make sure the incoming and outgoing colors differ
- if {[lsearch -exact $badcolors $c] < 0} break
- }
- set colormap($p) $c
- lappend badcolors $c
+ }
+ 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)
}
}
- lappend lines [list $oldlevel $p]
+ if {[llength $badcolors] >= $ncolors} {
+ set badcolors $origbad
+ }
}
-
- # choose which one to do next time around
- set todol [llength $todo]
- set level -1
- set latest {}
- for {set k $todol} {[incr k -1] >= 0} {} {
- set p [lindex $todo $k]
- if {$p == {}} continue
- if {$ncleft($p) == 0} {
- if {$datemode} {
- if {$latest == {} || $cdate($p) > $latest} {
- set level $k
- set latest $cdate($p)
+ 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)
}
- } else {
- set level $k
- break
}
}
}
- if {$level < 0} {
- if {$todo != {}} {
- puts "ERROR: none of the pending commits can be done yet:"
- foreach p $todo {
- puts " $p"
- }
- }
- break
+ 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) $c
+}
- # If we are reducing, put in a null entry
- if {$todol < $nlines} {
- if {$nullentry >= 0} {
- set i $nullentry
- while {$i < $todol
- && [lindex $oldtodo $i] == [lindex $todo $i]} {
- incr i
- }
+proc initgraph {} {
+ global canvy canvy0 lineno numcommits nextcolor linespc
+ global mainline mainlinearrow sidelines
+ global nchildren ncleft
+ global displist nhyperspace
+
+ allcanvs delete all
+ set nextcolor 0
+ set canvy $canvy0
+ set lineno -1
+ set numcommits 0
+ catch {unset mainline}
+ catch {unset mainlinearrow}
+ catch {unset sidelines}
+ foreach id [array names nchildren] {
+ set ncleft($id) $nchildren($id)
+ }
+ set displist {}
+ set nhyperspace 0
+}
+
+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 drawlines {id xtra} {
+ global mainline mainlinearrow sidelines lthickness colormap canv
+
+ $canv delete lines.$id
+ if {[info exists mainline($id)]} {
+ set t [$canv create line $mainline($id) \
+ -width [expr {($xtra + 1) * $lthickness}] \
+ -fill $colormap($id) -tags lines.$id \
+ -arrow $mainlinearrow($id)]
+ $canv lower $t
+ bindline $t $id
+ }
+ if {[info exists sidelines($id)]} {
+ foreach ls $sidelines($id) {
+ set coords [lindex $ls 0]
+ set thick [lindex $ls 1]
+ set arrow [lindex $ls 2]
+ set t [$canv create line $coords -fill $colormap($id) \
+ -width [expr {($thick + $xtra) * $lthickness}] \
+ -arrow $arrow -tags lines.$id]
+ $canv lower $t
+ bindline $t $id
+ }
+ }
+}
+
+# level here is an index in displist
+proc drawcommitline {level} {
+ global parents children nparents displist
+ global canv canv2 canv3 mainfont namefont canvy linespc
+ global lineid linehtag linentag linedtag commitinfo
+ global colormap numcommits currentparents dupparents
+ global idtags idline idheads idotherrefs
+ global lineno lthickness mainline mainlinearrow sidelines
+ global commitlisted rowtextx idpos lastuse displist
+ global oldnlines olddlevel olddisplist
+
+ incr numcommits
+ incr lineno
+ set id [lindex $displist $level]
+ set lastuse($id) $lineno
+ set lineid($lineno) $id
+ set idline($id) $lineno
+ set ofill [expr {[info exists commitlisted($id)]? "blue": "white"}]
+ if {![info exists commitinfo($id)]} {
+ readcommit $id
+ if {![info exists commitinfo($id)]} {
+ set commitinfo($id) {"No commit information available"}
+ set nparents($id) 0
+ }
+ }
+ assigncolor $id
+ set currentparents {}
+ set dupparents {}
+ if {[info exists commitlisted($id)] && [info exists parents($id)]} {
+ foreach p $parents($id) {
+ if {[lsearch -exact $currentparents $p] < 0} {
+ lappend currentparents $p
} else {
- set i $oldlevel
- if {$level >= $i} {
- incr i
- }
+ # remember that this parent was listed twice
+ lappend dupparents $p
}
- if {$i >= $todol} {
- set nullentry -1
+ }
+ }
+ set x [xcoord $level $level $lineno]
+ set y1 $canvy
+ set canvy [expr $canvy + $linespc]
+ allcanvs conf -scrollregion \
+ [list 0 0 0 [expr $y1 + 0.5 * $linespc + 2]]
+ if {[info exists mainline($id)]} {
+ lappend mainline($id) $x $y1
+ if {$mainlinearrow($id) ne "none"} {
+ set mainline($id) [trimdiagstart $mainline($id)]
+ }
+ }
+ drawlines $id 0
+ set orad [expr {$linespc / 3}]
+ set t [$canv create oval [expr $x - $orad] [expr $y1 - $orad] \
+ [expr $x + $orad - 1] [expr $y1 + $orad - 1] \
+ -fill $ofill -outline black -width 1]
+ $canv raise $t
+ $canv bind $t <1> {selcanvline {} %x %y}
+ set xt [xcoord [llength $displist] $level $lineno]
+ if {[llength $currentparents] > 2} {
+ set xt [expr {$xt + ([llength $currentparents] - 2) * $linespc}]
+ }
+ set rowtextx($lineno) $xt
+ set idpos($id) [list $x $xt $y1]
+ if {[info exists idtags($id)] || [info exists idheads($id)]
+ || [info exists idotherrefs($id)]} {
+ set xt [drawtags $id $x $xt $y1]
+ }
+ set headline [lindex $commitinfo($id) 0]
+ set name [lindex $commitinfo($id) 1]
+ set date [lindex $commitinfo($id) 2]
+ set linehtag($lineno) [$canv create text $xt $y1 -anchor w \
+ -text $headline -font $mainfont ]
+ $canv bind $linehtag($lineno) <Button-3> "rowmenu %X %Y $id"
+ set linentag($lineno) [$canv2 create text 3 $y1 -anchor w \
+ -text $name -font $namefont]
+ set linedtag($lineno) [$canv3 create text 3 $y1 -anchor w \
+ -text $date -font $mainfont]
+
+ set olddlevel $level
+ set olddisplist $displist
+ set oldnlines [llength $displist]
+}
+
+proc drawtags {id x xt y1} {
+ global idtags idheads idotherrefs
+ global linespc lthickness
+ global canv mainfont idline rowtextx
+
+ set marks {}
+ set ntags 0
+ set nheads 0
+ if {[info exists idtags($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 $tag 1]
+ set rowtextx($idline($id)) [expr {$xr + $linespc}]
+ } else {
+ # draw a head or other ref
+ if {[incr nheads -1] >= 0} {
+ set col green
} else {
- set nullentry $i
- set todo [linsert $todo $nullentry {}]
- if {$level >= $i} {
- incr level
- }
+ set col "#ddddff"
}
- } else {
- set nullentry -1
+ 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
+}
- foreach l $lines {
- set i [lindex $l 0]
- set dst [lindex $l 1]
- set j [lsearch -exact $todo $dst]
- if {$i == $j} {
- set linestarty($i) $oldstarty($i)
- continue
+proc notecrossings {id lo hi corner} {
+ global olddisplist crossings cornercrossings
+
+ for {set i $lo} {[incr i] < $hi} {} {
+ set p [lindex $olddisplist $i]
+ if {$p == {}} continue
+ if {$i == $corner} {
+ if {![info exists cornercrossings($id)]
+ || [lsearch -exact $cornercrossings($id) $p] < 0} {
+ lappend cornercrossings($id) $p
}
- set xi [expr {$canvx0 + $i * $linespc}]
- set xj [expr {$canvx0 + $j * $linespc}]
- set coords {}
- if {$oldstarty($i) < $canvy} {
- lappend coords $xi $oldstarty($i)
+ if {![info exists cornercrossings($p)]
+ || [lsearch -exact $cornercrossings($p) $id] < 0} {
+ lappend cornercrossings($p) $id
}
- lappend coords $xi $canvy
- if {$j < $i - 1} {
- lappend coords [expr $xj + $linespc] $canvy
- } elseif {$j > $i + 1} {
- lappend coords [expr $xj - $linespc] $canvy
+ } else {
+ if {![info exists crossings($id)]
+ || [lsearch -exact $crossings($id) $p] < 0} {
+ lappend crossings($id) $p
}
- lappend coords $xj $y2
- set t [$canv create line $coords -width 2 -fill $colormap($dst)]
- $canv lower $t
- if {![info exists linestarty($j)]} {
- set linestarty($j) $y2
+ if {![info exists crossings($p)]
+ || [lsearch -exact $crossings($p) $id] < 0} {
+ lappend crossings($p) $id
}
}
- set canvy $y2
- $canv conf -scrollregion [list 0 0 0 $canvy]
- update
}
}
-proc selcanvline {x y} {
- global canv canvy0 ctext linespc selectedline
- global lineid linehtag linentag linedtag commitinfo
- set ymax [lindex [$canv cget -scrollregion] 3]
- 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
+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)}]
}
- if {[info exists selectedline] && $selectedline == $l} return
- if {![info exists lineid($l)] || ![info exists linehtag($l)]} return
- $canv select clear
- $canv select from $linehtag($l) 0
- $canv select to $linehtag($l) end
- set id $lineid($l)
- $ctext delete 0.0 end
- set info $commitinfo($id)
- $ctext insert end "Author: [lindex $info 1] \t[lindex $info 2]\n"
- $ctext insert end "Committer: [lindex $info 3] \t[lindex $info 4]\n"
- $ctext insert end "\n"
- $ctext insert end [lindex $info 0]
+ return $x
}
-getcommits $revtreeargs
+# it seems Tk can't draw arrows on the end of diagonal line segments...
+proc trimdiagend {line} {
+ while {[llength $line] > 4} {
+ set x1 [lindex $line end-3]
+ set y1 [lindex $line end-2]
+ set x2 [lindex $line end-1]
+ set y2 [lindex $line end]
+ if {($x1 == $x2) != ($y1 == $y2)} break
+ set line [lreplace $line end-1 end]
+ }
+ return $line
+}
-set mainfont {Helvetica 9}
-set namefont $mainfont
-if {$boldnames} {
- lappend namefont bold
+proc trimdiagstart {line} {
+ while {[llength $line] > 4} {
+ set x1 [lindex $line 0]
+ set y1 [lindex $line 1]
+ set x2 [lindex $line 2]
+ set y2 [lindex $line 3]
+ if {($x1 == $x2) != ($y1 == $y2)} break
+ set line [lreplace $line 0 1]
+ }
+ return $line
}
-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 namex [expr 45 * $charspc]
-set datex [expr 75 * $charspc]
+proc drawslants {id needonscreen nohs} {
+ global canv mainline mainlinearrow sidelines
+ global canvx0 canvy xspc1 xspc2 lthickness
+ global currentparents dupparents
+ global lthickness linespc canvy colormap lineno geometry
+ global maxgraphpct maxwidth
+ global displist onscreen lastuse
+ global parents commitlisted
+ global oldnlines olddlevel olddisplist
+ global nhyperspace numcommits nnewparents
-makewindow
+ if {$lineno < 0} {
+ lappend displist $id
+ set onscreen($id) 1
+ return 0
+ }
-set start {}
-foreach id $commits {
- if {$nchildren($id) == 0} {
- set start $id
- break
+ set y1 [expr {$canvy - $linespc}]
+ set y2 $canvy
+
+ # work out what we need to get back on screen
+ set reins {}
+ if {$onscreen($id) < 0} {
+ # next to do isn't displayed, better get it on screen...
+ lappend reins [list $id 0]
}
-}
-if {$start != {}} {
- drawgraph $start
-}
+ # make sure all the previous commits's parents are on the screen
+ foreach p $currentparents {
+ if {$onscreen($p) < 0} {
+ lappend reins [list $p 0]
+ }
+ }
+ # bring back anything requested by caller
+ if {$needonscreen ne {}} {
+ lappend reins $needonscreen
+ }
+
+ # try the shortcut
+ if {$currentparents == $id && $onscreen($id) == 0 && $reins eq {}} {
+ set dlevel $olddlevel
+ set x [xcoord $dlevel $dlevel $lineno]
+ set mainline($id) [list $x $y1]
+ set mainlinearrow($id) none
+ set lastuse($id) $lineno
+ set displist [lreplace $displist $dlevel $dlevel $id]
+ set onscreen($id) 1
+ set xspc1([expr {$lineno + 1}]) $xspc1($lineno)
+ return $dlevel
+ }
+
+ # update displist
+ set displist [lreplace $displist $olddlevel $olddlevel]
+ set j $olddlevel
+ foreach p $currentparents {
+ set lastuse($p) $lineno
+ if {$onscreen($p) == 0} {
+ set displist [linsert $displist $j $p]
+ set onscreen($p) 1
+ incr j
+ }
+ }
+ if {$onscreen($id) == 0} {
+ lappend displist $id
+ set onscreen($id) 1
+ }
+
+ # remove the null entry if present
+ set nullentry [lsearch -exact $displist {}]
+ if {$nullentry >= 0} {
+ set displist [lreplace $displist $nullentry $nullentry]
+ }
+
+ # bring back the ones we need now (if we did it earlier
+ # it would change displist and invalidate olddlevel)
+ foreach pi $reins {
+ # test again in case of duplicates in reins
+ set p [lindex $pi 0]
+ if {$onscreen($p) < 0} {
+ set onscreen($p) 1
+ set lastuse($p) $lineno
+ set displist [linsert $displist [lindex $pi 1] $p]
+ incr nhyperspace -1
+ }
+ }
+
+ set lastuse($id) $lineno
+
+ # see if we need to make any lines jump off into hyperspace
+ set displ [llength $displist]
+ if {$displ > $maxwidth} {
+ set ages {}
+ foreach x $displist {
+ lappend ages [list $lastuse($x) $x]
+ }
+ set ages [lsort -integer -index 0 $ages]
+ set k 0
+ while {$displ > $maxwidth} {
+ set use [lindex $ages $k 0]
+ set victim [lindex $ages $k 1]
+ if {$use >= $lineno - 5} break
+ incr k
+ if {[lsearch -exact $nohs $victim] >= 0} continue
+ set i [lsearch -exact $displist $victim]
+ set displist [lreplace $displist $i $i]
+ set onscreen($victim) -1
+ incr nhyperspace
+ incr displ -1
+ if {$i < $nullentry} {
+ incr nullentry -1
+ }
+ set x [lindex $mainline($victim) end-1]
+ lappend mainline($victim) $x $y1
+ set line [trimdiagend $mainline($victim)]
+ set arrow "last"
+ if {$mainlinearrow($victim) ne "none"} {
+ set line [trimdiagstart $line]
+ set arrow "both"
+ }
+ lappend sidelines($victim) [list $line 1 $arrow]
+ unset mainline($victim)
+ }
+ }
+
+ set dlevel [lsearch -exact $displist $id]
+
+ # If we are reducing, put in a null entry
+ if {$displ < $oldnlines} {
+ # does the next line look like a merge?
+ # i.e. does it have > 1 new parent?
+ if {$nnewparents($id) > 1} {
+ set i [expr {$dlevel + 1}]
+ } elseif {$nnewparents([lindex $olddisplist $olddlevel]) == 0} {
+ set i $olddlevel
+ if {$nullentry >= 0 && $nullentry < $i} {
+ incr i -1
+ }
+ } elseif {$nullentry >= 0} {
+ set i $nullentry
+ while {$i < $displ
+ && [lindex $olddisplist $i] == [lindex $displist $i]} {
+ incr i
+ }
+ } else {
+ set i $olddlevel
+ if {$dlevel >= $i} {
+ incr i
+ }
+ }
+ if {$i < $displ} {
+ set displist [linsert $displist $i {}]
+ incr displ
+ if {$dlevel >= $i} {
+ incr dlevel
+ }
+ }
+ }
+
+ # decide on the line spacing for the next line
+ set lj [expr {$lineno + 1}]
+ set maxw [expr {$maxgraphpct * $geometry(canv1) / 100}]
+ if {$displ <= 1 || $canvx0 + $displ * $xspc2 <= $maxw} {
+ set xspc1($lj) $xspc2
+ } else {
+ set xspc1($lj) [expr {($maxw - $canvx0 - $xspc2) / ($displ - 1)}]
+ if {$xspc1($lj) < $lthickness} {
+ set xspc1($lj) $lthickness
+ }
+ }
+
+ foreach idi $reins {
+ set id [lindex $idi 0]
+ set j [lsearch -exact $displist $id]
+ set xj [xcoord $j $dlevel $lj]
+ set mainline($id) [list $xj $y2]
+ set mainlinearrow($id) first
+ }
+
+ set i -1
+ foreach id $olddisplist {
+ incr i
+ if {$id == {}} continue
+ if {$onscreen($id) <= 0} continue
+ set xi [xcoord $i $olddlevel $lineno]
+ if {$i == $olddlevel} {
+ foreach p $currentparents {
+ set j [lsearch -exact $displist $p]
+ set coords [list $xi $y1]
+ set xj [xcoord $j $dlevel $lj]
+ if {$xj < $xi - $linespc} {
+ lappend coords [expr {$xj + $linespc}] $y1
+ notecrossings $p $j $i [expr {$j + 1}]
+ } elseif {$xj > $xi + $linespc} {
+ lappend coords [expr {$xj - $linespc}] $y1
+ notecrossings $p $i $j [expr {$j - 1}]
+ }
+ if {[lsearch -exact $dupparents $p] >= 0} {
+ # draw a double-width line to indicate the doubled parent
+ lappend coords $xj $y2
+ lappend sidelines($p) [list $coords 2 none]
+ if {![info exists mainline($p)]} {
+ set mainline($p) [list $xj $y2]
+ set mainlinearrow($p) none
+ }
+ } else {
+ # normal case, no parent duplicated
+ set yb $y2
+ set dx [expr {abs($xi - $xj)}]
+ if {0 && $dx < $linespc} {
+ set yb [expr {$y1 + $dx}]
+ }
+ if {![info exists mainline($p)]} {
+ if {$xi != $xj} {
+ lappend coords $xj $yb
+ }
+ set mainline($p) $coords
+ set mainlinearrow($p) none
+ } else {
+ lappend coords $xj $yb
+ if {$yb < $y2} {
+ lappend coords $xj $y2
+ }
+ lappend sidelines($p) [list $coords 1 none]
+ }
+ }
+ }
+ } else {
+ set j $i
+ if {[lindex $displist $i] != $id} {
+ set j [lsearch -exact $displist $id]
+ }
+ if {$j != $i || $xspc1($lineno) != $xspc1($lj)
+ || ($olddlevel < $i && $i < $dlevel)
+ || ($dlevel < $i && $i < $olddlevel)} {
+ set xj [xcoord $j $dlevel $lj]
+ lappend mainline($id) $xi $y1 $xj $y2
+ }
+ }
+ }
+ return $dlevel
+}
+
+# search for x in a list of lists
+proc llsearch {llist x} {
+ set i 0
+ foreach l $llist {
+ if {$l == $x || [lsearch -exact $l $x] >= 0} {
+ return $i
+ }
+ incr i
+ }
+ return -1
+}
+
+proc drawmore {reading} {
+ global displayorder numcommits ncmupdate nextupdate
+ global stopped nhyperspace parents commitlisted
+ global maxwidth onscreen displist currentparents olddlevel
+
+ set n [llength $displayorder]
+ while {$numcommits < $n} {
+ set id [lindex $displayorder $numcommits]
+ set ctxend [expr {$numcommits + 10}]
+ if {!$reading && $ctxend > $n} {
+ set ctxend $n
+ }
+ set dlist {}
+ if {$numcommits > 0} {
+ set dlist [lreplace $displist $olddlevel $olddlevel]
+ set i $olddlevel
+ foreach p $currentparents {
+ if {$onscreen($p) == 0} {
+ set dlist [linsert $dlist $i $p]
+ incr i
+ }
+ }
+ }
+ set nohs {}
+ set reins {}
+ set isfat [expr {[llength $dlist] > $maxwidth}]
+ if {$nhyperspace > 0 || $isfat} {
+ if {$ctxend > $n} break
+ # work out what to bring back and
+ # what we want to don't want to send into hyperspace
+ set room 1
+ for {set k $numcommits} {$k < $ctxend} {incr k} {
+ set x [lindex $displayorder $k]
+ set i [llsearch $dlist $x]
+ if {$i < 0} {
+ set i [llength $dlist]
+ lappend dlist $x
+ }
+ if {[lsearch -exact $nohs $x] < 0} {
+ lappend nohs $x
+ }
+ if {$reins eq {} && $onscreen($x) < 0 && $room} {
+ set reins [list $x $i]
+ }
+ set newp {}
+ if {[info exists commitlisted($x)]} {
+ set right 0
+ foreach p $parents($x) {
+ if {[llsearch $dlist $p] < 0} {
+ lappend newp $p
+ if {[lsearch -exact $nohs $p] < 0} {
+ lappend nohs $p
+ }
+ if {$reins eq {} && $onscreen($p) < 0 && $room} {
+ set reins [list $p [expr {$i + $right}]]
+ }
+ }
+ set right 1
+ }
+ }
+ set l [lindex $dlist $i]
+ if {[llength $l] == 1} {
+ set l $newp
+ } else {
+ set j [lsearch -exact $l $x]
+ set l [concat [lreplace $l $j $j] $newp]
+ }
+ set dlist [lreplace $dlist $i $i $l]
+ if {$room && $isfat && [llength $newp] <= 1} {
+ set room 0
+ }
+ }
+ }
+
+ set dlevel [drawslants $id $reins $nohs]
+ drawcommitline $dlevel
+ if {[clock clicks -milliseconds] >= $nextupdate
+ && $numcommits >= $ncmupdate} {
+ doupdate $reading
+ if {$stopped} break
+ }
+ }
+}
+
+# level here is an index in todo
+proc updatetodo {level noshortcut} {
+ global ncleft todo nnewparents
+ global commitlisted parents onscreen
+
+ set id [lindex $todo $level]
+ set olds {}
+ if {[info exists commitlisted($id)]} {
+ foreach p $parents($id) {
+ if {[lsearch -exact $olds $p] < 0} {
+ lappend olds $p
+ }
+ }
+ }
+ if {!$noshortcut && [llength $olds] == 1} {
+ set p [lindex $olds 0]
+ if {$ncleft($p) == 1 && [lsearch -exact $todo $p] < 0} {
+ set ncleft($p) 0
+ set todo [lreplace $todo $level $level $p]
+ set onscreen($p) 0
+ set nnewparents($id) 1
+ return 0
+ }
+ }
+
+ set todo [lreplace $todo $level $level]
+ set i $level
+ set n 0
+ foreach p $olds {
+ incr ncleft($p) -1
+ set k [lsearch -exact $todo $p]
+ if {$k < 0} {
+ set todo [linsert $todo $i $p]
+ set onscreen($p) 0
+ incr i
+ incr n
+ }
+ }
+ set nnewparents($id) $n
+
+ return 1
+}
+
+proc decidenext {{noread 0}} {
+ global ncleft todo
+ global datemode cdate
+ global commitinfo
+
+ # choose which one to do next time around
+ set todol [llength $todo]
+ set level -1
+ set latest {}
+ for {set k $todol} {[incr k -1] >= 0} {} {
+ set p [lindex $todo $k]
+ if {$ncleft($p) == 0} {
+ if {$datemode} {
+ if {![info exists commitinfo($p)]} {
+ if {$noread} {
+ return {}
+ }
+ readcommit $p
+ }
+ if {$latest == {} || $cdate($p) > $latest} {
+ set level $k
+ set latest $cdate($p)
+ }
+ } else {
+ set level $k
+ break
+ }
+ }
+ }
+ if {$level < 0} {
+ if {$todo != {}} {
+ puts "ERROR: none of the pending commits can be done yet:"
+ foreach p $todo {
+ puts " $p ($ncleft($p))"
+ }
+ }
+ return -1
+ }
+
+ return $level
+}
+
+proc drawcommit {id} {
+ global phase todo nchildren datemode nextupdate
+ global numcommits ncmupdate displayorder todo onscreen
+
+ if {$phase != "incrdraw"} {
+ set phase incrdraw
+ set displayorder {}
+ set todo {}
+ initgraph
+ }
+ if {$nchildren($id) == 0} {
+ lappend todo $id
+ set onscreen($id) 0
+ }
+ set level [decidenext 1]
+ if {$level == {} || $id != [lindex $todo $level]} {
+ return
+ }
+ while 1 {
+ lappend displayorder [lindex $todo $level]
+ if {[updatetodo $level $datemode]} {
+ set level [decidenext 1]
+ if {$level == {}} break
+ }
+ set id [lindex $todo $level]
+ if {![info exists commitlisted($id)]} {
+ break
+ }
+ }
+ drawmore 1
+}
+
+proc finishcommits {} {
+ global phase
+ global canv mainfont ctext maincursor textcursor
+
+ if {$phase != "incrdraw"} {
+ $canv delete all
+ $canv create text 3 3 -anchor nw -text "No commits selected" \
+ -font $mainfont -tags textitems
+ set phase {}
+ } else {
+ drawrest
+ }
+ . config -cursor $maincursor
+ settextcursor $textcursor
+}
+
+# Don't change the text pane cursor if it is currently the hand cursor,
+# showing that we are over a sha1 ID link.
+proc settextcursor {c} {
+ global ctext curtextcursor
+
+ if {[$ctext cget -cursor] == $curtextcursor} {
+ $ctext config -cursor $c
+ }
+ set curtextcursor $c
+}
+
+proc drawgraph {} {
+ global nextupdate startmsecs ncmupdate
+ global displayorder onscreen
+
+ if {$displayorder == {}} return
+ set startmsecs [clock clicks -milliseconds]
+ set nextupdate [expr $startmsecs + 100]
+ set ncmupdate 1
+ initgraph
+ foreach id $displayorder {
+ set onscreen($id) 0
+ }
+ drawmore 0
+}
+
+proc drawrest {} {
+ global phase stopped redisplaying selectedline
+ global datemode todo displayorder
+ global numcommits ncmupdate
+ global nextupdate startmsecs
+
+ set level [decidenext]
+ if {$level >= 0} {
+ set phase drawgraph
+ while 1 {
+ lappend displayorder [lindex $todo $level]
+ set hard [updatetodo $level $datemode]
+ if {$hard} {
+ set level [decidenext]
+ if {$level < 0} break
+ }
+ }
+ drawmore 0
+ }
+ 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)"
+}
+
+# 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 idline 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 $e]
+ if {![info exists idline($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 $idline($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 lineid linehtag linentag linedtag
+ global canvy0 linespc parents nparents children
+ global cflist currentid sha1entry
+ global commentend idtags idline linknum
+
+ $canv delete hover
+ normalline
+ if {![info exists lineid($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
+ set linknum 0
+ $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"
+ }
+ $ctext insert end "\n"
+ }
+
+ set comment {}
+ if {[info exists parents($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]
+
+ # 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 [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 $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 $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 lthickness
+
+ 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 * $linespc]
+ set lthickness [expr {int($linespc / 9) + 1}]
+ 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 clickisonarrow {id y} {
+ global mainline mainlinearrow sidelines lthickness
+
+ set thresh [expr {2 * $lthickness + 6}]
+ if {[info exists mainline($id)]} {
+ if {$mainlinearrow($id) ne "none"} {
+ if {abs([lindex $mainline($id) 1] - $y) < $thresh} {
+ return "up"
+ }
+ }
+ }
+ if {[info exists sidelines($id)]} {
+ foreach ls $sidelines($id) {
+ set coords [lindex $ls 0]
+ set arrow [lindex $ls 2]
+ if {$arrow eq "first" || $arrow eq "both"} {
+ if {abs([lindex $coords 1] - $y) < $thresh} {
+ return "up"
+ }
+ }
+ if {$arrow eq "last" || $arrow eq "both"} {
+ if {abs([lindex $coords end] - $y) < $thresh} {
+ return "down"
+ }
+ }
+ }
+ }
+ return {}
+}
+
+proc arrowjump {id dirn y} {
+ global mainline sidelines canv
+
+ set yt {}
+ if {$dirn eq "down"} {
+ if {[info exists mainline($id)]} {
+ set y1 [lindex $mainline($id) 1]
+ if {$y1 > $y} {
+ set yt $y1
+ }
+ }
+ if {[info exists sidelines($id)]} {
+ foreach ls $sidelines($id) {
+ set y1 [lindex $ls 0 1]
+ if {$y1 > $y && ($yt eq {} || $y1 < $yt)} {
+ set yt $y1
+ }
+ }
+ }
+ } else {
+ if {[info exists sidelines($id)]} {
+ foreach ls $sidelines($id) {
+ set y1 [lindex $ls 0 end]
+ if {$y1 < $y && ($yt eq {} || $y1 > $yt)} {
+ set yt $y1
+ }
+ }
+ }
+ }
+ if {$yt eq {}} return
+ 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
+ }
+ $canv yview moveto $yfrac
+}
+
+proc lineclick {x y id isnew} {
+ global ctext commitinfo children cflist canv thickerline
+
+ unmarkmatches
+ unselectline
+ normalline
+ $canv delete hover
+ # draw this line thicker than normal
+ drawlines $id 1
+ set thickerline $id
+ if {$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"
+ $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 normalline {} {
+ global thickerline
+ if {[info exists thickerline]} {
+ drawlines $thickerline 0
+ unset thickerline
+ }
+}
+
+proc selbyid {id} {
+ global idline
+ if {[info exists idline($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 $top.tag
+}
+
+proc domktag {} {
+ global mktagtop env tagids idtags
+
+ set id [$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 $id
+}
+
+proc redrawtags {id} {
+ global canv linehtag idline idpos selectedline
+
+ if {![info exists idline($id)]} return
+ $canv delete tag.$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 $wrcomtop}
+ unset wrcomtop
+}
+
+proc listrefs {id} {
+ global idtags idheads idotherrefs
+
+ set x {}
+ if {[info exists idtags($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]
+ }
+ }
+ foreach v {tagids idtags headids idheads otherrefids idotherrefs} {
+ catch {unset $v}
+ }
+ 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 .
+}
+
+# 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 maxwidth 16
+
+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