/
gitk
executable file
·3697 lines (3431 loc) · 96.1 KB
/
gitk
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#!/bin/sh
# Tcl ignores the next line -*- tcl -*- \
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.
proc gitdir {} {
global env
if {[info exists env(GIT_DIR)]} {
return $env(GIT_DIR)
} else {
return ".git"
}
}
proc getcommits {rargs} {
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 {}
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] >= $nextupdate} {
doupdate 1
}
}
}
}
}
}
proc doupdate {reading} {
global commfd nextupdate numcommits ncmupdate
if {$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} {
if [catch {set contents [exec git-cat-file commit $id]}] return
parsecommit $id $contents 0 {}
}
proc parsecommit {id contents listed olds} {
global commitinfo children nchildren parents nparents cdate ncleft
set inhdr 1
set comment {}
set headline {}
set auname {}
set audate {}
set comname {}
set comdate {}
if {![info exists nchildren($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 {
set tag [lindex $line 0]
if {$tag == "author"} {
set x [expr {[llength $line] - 2}]
set audate [lindex $line $x]
set auname [lrange $line 1 [expr {$x - 1}]]
} elseif {$tag == "committer"} {
set x [expr {[llength $line] - 2}]
set comdate [lindex $line $x]
set comname [lrange $line 1 [expr {$x - 1}]]
}
}
} else {
if {$comment == {}} {
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 $line
}
}
if {$audate != {}} {
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 $headline $auname $audate \
$comname $comdate $comment]
}
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
}
}
readotherrefs refs {} {tags heads}
}
proc readotherrefs {base dname excl} {
global otherrefids idotherrefs
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 $f
file rename -force "~/.gitk-new" "~/.gitk"
}
set stuffsaved 1
}
proc resizeclistpanes {win w} {
global oldwidth
if [info exists oldwidth($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]
}
}
}
$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
}
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)
}
}
if {[llength $badcolors] >= $ncolors} {
set badcolors {}
}
}
set origbad $badcolors
if {[llength $badcolors] < $ncolors - 1} {
if {[info exists crossings($id)]} {
foreach x $crossings($id) {
if {[info exists colormap($x)]
&& [lsearch -exact $badcolors $colormap($x)] < 0} {
lappend badcolors $colormap($x)
}
}
if {[llength $badcolors] >= $ncolors} {
set badcolors $origbad
}
}
set origbad $badcolors
}
if {[llength $badcolors] < $ncolors - 1} {
foreach child $children($id) {
if {[info exists colormap($child)]
&& [lsearch -exact $badcolors $colormap($child)] < 0} {
lappend badcolors $colormap($child)
}
if {[info exists parents($child)]} {
foreach p $parents($child) {
if {[info exists colormap($p)]
&& [lsearch -exact $badcolors $colormap($p)] < 0} {
lappend badcolors $colormap($p)
}
}
}
}
if {[llength $badcolors] >= $ncolors} {
set badcolors $origbad
}
}
for {set i 0} {$i <= $ncolors} {incr i} {
set c [lindex $colors $nextcolor]
if {[incr nextcolor] >= $ncolors} {
set nextcolor 0
}
if {[lsearch -exact $badcolors $c]} break
}
set colormap($id) $c
}
proc 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 {
# remember that this parent was listed twice
lappend dupparents $p
}
}
}
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 col "#ddddff"
}
set xl [expr $xl - $delta/2]
$canv create polygon $x $yt $xr $yt $xr $yb $x $yb \
-width 1 -outline black -fill $col -tags tag.$id
}
set t [$canv create text $xl $y1 -anchor w -text $tag \
-font $mainfont -tags tag.$id]
if {$ntags >= 0} {
$canv bind $t <1> [list showtag $tag 1]
}
}
return $xt
}
proc 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) $p
}
if {![info exists cornercrossings($p)]
|| [lsearch -exact $cornercrossings($p) $id] < 0} {
lappend cornercrossings($p) $id
}
} else {
if {![info exists crossings($id)]
|| [lsearch -exact $crossings($id) $p] < 0} {
lappend crossings($id) $p
}
if {![info exists crossings($p)]
|| [lsearch -exact $crossings($p) $id] < 0} {
lappend crossings($p) $id
}
}
}
}
proc xcoord {i level ln} {
global canvx0 xspc1 xspc2
set x [expr {$canvx0 + $i * $xspc1($ln)}]
if {$i > 0 && $i == $level} {
set x [expr {$x + 0.5 * ($xspc2 - $xspc1($ln))}]
} elseif {$i > $level} {
set x [expr {$x + $xspc2 - $xspc1($ln)}]
}
return $x
}