blob: 3dd97e291ed18d45f998d37ae2f66a0bce3b60a9 [file] [log] [blame]
#!/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 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)
}
}
set hdrend [string first "\n\n" $contents]
if {$hdrend < 0} {
# should never happen...
set hdrend [string length $contents]
}
set header [string range $contents 0 [expr {$hdrend - 1}]]
set comment [string range $contents [expr {$hdrend + 2}] end]
foreach line [split $header "\n"] {
set tag [lindex $line 0]
if {$tag == "author"} {
set audate [lindex $line end-1]
set auname [lrange $line 1 end-2]
} elseif {$tag == "committer"} {
set comdate [lindex $line end-1]
set comname [lrange $line 1 end-2]
}
}
set headline {}
# take the first line of the comment as the headline
set i [string first "\n" $comment]
if {$i >= 0} {
set headline [string trim [string range $comment 0 $i]]
} else {
set headline $comment
}
if {!$listed} {
# git-rev-list indents the comment by 4 spaces;
# if we got this via git-cat-file, add the indentation
set newcomment {}
foreach line [split $comment "\n"] {
append newcomment " "
append newcomment $line
append newcomment "\n"
}
set comment $newcomment
}
if {$comdate != {}} {
set cdate($id) $comdate
}
set commitinfo($id) [list $headline $auname $audate \
$comname $comdate $comment]
}
proc readrefs {} {
global tagids idtags headids idheads tagcontents
global otherrefids idotherrefs
set refd [open [list | git-ls-remote [gitdir]] r]
while {0 <= [set n [gets $refd line]]} {
if {![regexp {^([0-9a-f]{40}) refs/([^^]*)$} $line \
match id path]} {
continue
}
if {![regexp {^(tags|heads)/(.*)$} $path match type name]} {
set type others
set name $path
}
if {$type == "tags"} {
set tagids($name) $id
lappend idtags($id) $name
set obj {}
set type {}
set tag {}
catch {
set commit [exec git-rev-parse "$id^0"]
if {"$commit" != "$id"} {
set tagids($name) $commit
lappend idtags($commit) $name
}
}
catch {
set tagcontents($name) [exec git-cat-file tag "$id"]
}
} elseif { $type == "heads" } {
set headids($name) $id
lappend idheads($id) $name
} else {
set otherrefids($name) $id
lappend idotherrefs($id) $name
}
}
close $refd
}
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 $w.ok -side bottom
}
proc assigncolor {id} {
global colormap commcolors colors nextcolor
global parents nparents children nchildren
global cornercrossings crossings
if [info exists colormap($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 $id 1"
}
proc drawlines {id xtra delold} {
global mainline mainlinearrow sidelines lthickness colormap canv
if {$delold} {
$canv delete lines.$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 $id 0 0
set orad [expr {$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 date [formatdate $date]
set linehtag($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
}
# 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
}
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 $line
}
proc drawslants {id needonscreen nohs} {
global canv mainline mainlinearrow sidelines
global canvx0 canvy xspc1 xspc2 lthickness
global currentparents dupparents
global lthickness linespc canvy colormap lineno geometry
global maxgraphpct maxwidth
global displist onscreen lastuse
global parents commitlisted
global oldnlines olddlevel olddisplist
global nhyperspace numcommits nnewparents
if {$lineno < 0} {
lappend displist $id
set onscreen($id) 1
return 0
}
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]
}
# 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 $level
}
proc drawcommit {id} {
global phase todo nchildren datemode nextupdate revlistorder
global numcommits ncmupdate displayorder todo onscreen parents
if {$phase != "incrdraw"} {
set phase incrdraw
set displayorder {}
set todo {}
initgraph
}
if {$nchildren($id) == 0} {
lappend todo $id
set onscreen($id) 0
}
if {$revlistorder} {
set level [lsearch -exact $todo $id]
if {$level < 0} {
error_popup "oops, $id isn't in todo"
return
}
lappend displayorder $id
updatetodo $level 0
} else {
set level [decidenext 1]
if {$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 revlistorder
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)
set date [formatdate [lindex $info 2]]
$ctext insert end "Author: [lindex $info 1] $date\n"
set date [formatdate [lindex $info 4]]
$ctext insert end "Committer: [lindex $info 3] $date\n"
if {[info exists idtags($id)]} {
$ctext insert end "Tags:"
foreach tag $idtags($id) {
$ctext insert end " $tag"
}
$ctext insert end "\n"
}
set comment {}
if {[info exists parents($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