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git/gitk
Paul Mackerras 3c461ffe88 Calculate the list of interesting files for a merge.
If there is a GCA for the parents of the merge, then a file is
interesting if some parent has a version that is different from both
the child and the GCA.  If there is no GCA (e.g. for a merge that
pulls in an external project) then a file is interesting if the child's
version is different from all of the parents.

Next step is to actually show the differences for the interesting
files...
2005-07-20 09:13:46 -04:00

2516 lines
66 KiB
Tcl
Executable File
Raw Blame History

#!/bin/sh
# Tcl ignores the next line -*- tcl -*- \
exec wish "$0" -- "${1+$@}"
# 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 getcommits {rargs} {
global commits commfd phase canv mainfont env
global startmsecs nextupdate
global ctext maincursor textcursor leftover
# check that we can find a .git directory somewhere...
if {[info exists env(GIT_DIR)]} {
set gitdir $env(GIT_DIR)
} else {
set gitdir ".git"
}
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]
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 --merge-order $parsed_args" r]
} err] {
puts stderr "Error executing git-rev-list: $err"
exit 1
}
set leftover {}
fconfigure $commfd -blocking 0 -translation binary
fileevent $commfd readable "getcommitlines $commfd"
$canv delete all
$canv create text 3 3 -anchor nw -text "Reading commits..." \
-font $mainfont -tags textitems
. config -cursor watch
$ctext config -cursor watch
}
proc getcommitlines {commfd} {
global commits parents cdate children nchildren
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}]
if {![regexp {^([0-9a-f]{40})\n} $cmit match id]} {
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 cmit [string range $cmit 41 end]
lappend commits $id
set commitlisted($id) 1
parsecommit $id $cmit 1
drawcommit $id
if {[clock clicks -milliseconds] >= $nextupdate} {
doupdate
}
while {$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
}
}
}
}
}
}
proc doupdate {} {
global commfd nextupdate
incr nextupdate 100
fileevent $commfd readable {}
update
fileevent $commfd readable "getcommitlines $commfd"
}
proc readcommit {id} {
if [catch {set contents [exec git-cat-file commit $id]}] return
parsecommit $id $contents 0
}
proc parsecommit {id contents listed} {
global commitinfo children nchildren parents nparents cdate ncleft
set inhdr 1
set comment {}
set headline {}
set auname {}
set audate {}
set comname {}
set comdate {}
if {![info exists nchildren($id)]} {
set children($id) {}
set nchildren($id) 0
set ncleft($id) 0
}
set parents($id) {}
set nparents($id) 0
foreach line [split $contents "\n"] {
if {$inhdr} {
if {$line == {}} {
set inhdr 0
} else {
set tag [lindex $line 0]
if {$tag == "parent"} {
set p [lindex $line 1]
if {![info exists nchildren($p)]} {
set children($p) {}
set nchildren($p) 0
set ncleft($p) 0
}
lappend parents($id) $p
incr nparents($id)
# sometimes we get a commit that lists a parent twice...
if {$listed && [lsearch -exact $children($p) $id] < 0} {
lappend children($p) $id
incr nchildren($p)
incr ncleft($p)
}
} elseif {$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
set tags [glob -nocomplain -types f .git/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 contents [split [exec git-cat-file tag $id] "\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
}
}
close $fd
}
}
set heads [glob -nocomplain -types f .git/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
}
}
}
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
global rowctxmenu gaudydiff
menu .bar
.bar add cascade -label "File" -menu .bar.file
menu .bar.file
.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
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 $geometry(ctexth) \
-yscrollcommand ".ctop.cdet.left.sb set"
scrollbar .ctop.cdet.left.sb -command "$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 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 $cflist -side left -fill both -expand 1
.ctop.cdet add .ctop.cdet.right
bind .ctop.cdet <Configure> {resizecdetpanes %W %w}
pack .ctop -side top -fill both -expand 1
bindall <1> {selcanvline %W %x %y}
#bindall <B1-Motion> {selcanvline %W %x %y}
bindall <ButtonRelease-4> "allcanvs yview scroll -5 units"
bindall <ButtonRelease-5> "allcanvs yview scroll 5 units"
bindall <2> "allcanvs scan mark 0 %y"
bindall <B2-Motion> "allcanvs scan dragto 0 %y"
bind . <Key-Up> "selnextline -1"
bind . <Key-Down> "selnextline 1"
bind . <Key-Prior> "allcanvs yview scroll -1 pages"
bind . <Key-Next> "allcanvs yview scroll 1 pages"
bindkey <Key-Delete> "$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 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 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 == $e} return
}
focus .
}
proc savestuff {w} {
global canv canv2 canv3 ctext cflist mainfont textfont
global stuffsaved
if {$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 "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 <EFBFBD> 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 lthickness nextcolor linespc
global mainline sidelines
global nchildren ncleft
allcanvs delete all
set nextcolor 0
set canvy $canvy0
set lineno -1
set numcommits 0
set lthickness [expr {int($linespc / 9) + 1}]
catch {unset mainline}
catch {unset sidelines}
foreach id [array names nchildren] {
set ncleft($id) $nchildren($id)
}
}
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"
}
proc drawcommitline {level} {
global parents children nparents nchildren todo
global canv canv2 canv3 mainfont namefont canvx0 canvy linespc
global lineid linehtag linentag linedtag commitinfo
global colormap numcommits currentparents dupparents
global oldlevel oldnlines oldtodo
global idtags idline idheads
global lineno lthickness mainline sidelines
global commitlisted rowtextx idpos
incr numcommits
incr lineno
set id [lindex $todo $level]
set lineid($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 [expr $canvx0 + $level * $linespc]
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 $y1
set t [$canv create line $mainline($id) \
-width $lthickness -fill $colormap($id)]
$canv lower $t
bindline $t $id
}
if {[info exists sidelines($id)]} {
foreach ls $sidelines($id) {
set coords [lindex $ls 0]
set thick [lindex $ls 1]
set t [$canv create line $coords -fill $colormap($id) \
-width [expr {$thick * $lthickness}]]
$canv lower $t
bindline $t $id
}
}
set orad [expr {$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 [expr $canvx0 + [llength $todo] * $linespc]
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)]} {
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 $mainfont]
}
proc drawtags {id x xt y1} {
global idtags idheads
global linespc lthickness
global canv mainfont
set marks {}
set ntags 0
if {[info exists idtags($id)]} {
set marks $idtags($id)
set ntags [llength $marks]
}
if {[info exists idheads($id)]} {
set marks [concat $marks $idheads($id)]
}
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
$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
} else {
# draw a head
set xl [expr $xl - $delta/2]
$canv create polygon $x $yt $xr $yt $xr $yb $x $yb \
-width 1 -outline black -fill green -tags tag.$id
}
$canv create text $xl $y1 -anchor w -text $tag \
-font $mainfont -tags tag.$id
}
return $xt
}
proc updatetodo {level noshortcut} {
global currentparents ncleft todo
global mainline oldlevel oldtodo oldnlines
global canvx0 canvy linespc mainline
global commitinfo
set oldlevel $level
set oldtodo $todo
set oldnlines [llength $todo]
if {!$noshortcut && [llength $currentparents] == 1} {
set p [lindex $currentparents 0]
if {$ncleft($p) == 1 && [lsearch -exact $todo $p] < 0} {
set ncleft($p) 0
set x [expr $canvx0 + $level * $linespc]
set y [expr $canvy - $linespc]
set mainline($p) [list $x $y]
set todo [lreplace $todo $level $level $p]
return 0
}
}
set todo [lreplace $todo $level $level]
set i $level
foreach p $currentparents {
incr ncleft($p) -1
set k [lsearch -exact $todo $p]
if {$k < 0} {
set todo [linsert $todo $i $p]
incr i
}
}
return 1
}
proc notecrossings {id lo hi corner} {
global oldtodo crossings cornercrossings
for {set i $lo} {[incr i] < $hi} {} {
set p [lindex $oldtodo $i]
if {$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 drawslants {} {
global canv mainline sidelines canvx0 canvy linespc
global oldlevel oldtodo todo currentparents dupparents
global lthickness linespc canvy colormap
set y1 [expr $canvy - $linespc]
set y2 $canvy
set i -1
foreach id $oldtodo {
incr i
if {$id == {}} continue
set xi [expr {$canvx0 + $i * $linespc}]
if {$i == $oldlevel} {
foreach p $currentparents {
set j [lsearch -exact $todo $p]
set coords [list $xi $y1]
set xj [expr {$canvx0 + $j * $linespc}]
if {$j < $i - 1} {
lappend coords [expr $xj + $linespc] $y1
notecrossings $p $j $i [expr {$j + 1}]
} elseif {$j > $i + 1} {
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 $coords 2]
if {![info exists mainline($p)]} {
set mainline($p) [list $xj $y2]
}
} else {
# normal case, no parent duplicated
if {![info exists mainline($p)]} {
if {$i != $j} {
lappend coords $xj $y2
}
set mainline($p) $coords
} else {
lappend coords $xj $y2
lappend sidelines($p) [list $coords 1]
}
}
}
} elseif {[lindex $todo $i] != $id} {
set j [lsearch -exact $todo $id]
set xj [expr {$canvx0 + $j * $linespc}]
lappend mainline($id) $xi $y1 $xj $y2
}
}
}
proc decidenext {{noread 0}} {
global parents children nchildren ncleft todo
global canv canv2 canv3 mainfont namefont canvx0 canvy linespc
global datemode cdate
global commitinfo
global currentparents oldlevel oldnlines oldtodo
global lineno lthickness
# remove the null entry if present
set nullentry [lsearch -exact $todo {}]
if {$nullentry >= 0} {
set todo [lreplace $todo $nullentry $nullentry]
}
# 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($p))"
}
}
return -1
}
# If we are reducing, put in a null entry
if {$todol < $oldnlines} {
if {$nullentry >= 0} {
set i $nullentry
while {$i < $todol
&& [lindex $oldtodo $i] == [lindex $todo $i]} {
incr i
}
} else {
set i $oldlevel
if {$level >= $i} {
incr i
}
}
if {$i < $todol} {
set todo [linsert $todo $i {}]
if {$level >= $i} {
incr level
}
}
}
return $level
}
proc drawcommit {id} {
global phase todo nchildren datemode nextupdate
global startcommits
if {$phase != "incrdraw"} {
set phase incrdraw
set todo $id
set startcommits $id
initgraph
drawcommitline 0
updatetodo 0 $datemode
} else {
if {$nchildren($id) == 0} {
lappend todo $id
lappend startcommits $id
}
set level [decidenext 1]
if {$level == {} || $id != [lindex $todo $level]} {
return
}
while 1 {
drawslants
drawcommitline $level
if {[updatetodo $level $datemode]} {
set level [decidenext 1]
if {$level == {}} break
}
set id [lindex $todo $level]
if {![info exists commitlisted($id)]} {
break
}
if {[clock clicks -milliseconds] >= $nextupdate} {
doupdate
if {$stopped} break
}
}
}
}
proc finishcommits {} {
global phase
global startcommits
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 {
drawslants
set level [decidenext]
drawrest $level [llength $startcommits]
}
. config -cursor $maincursor
$ctext config -cursor $textcursor
}
proc drawgraph {} {
global nextupdate startmsecs startcommits todo
if {$startcommits == {}} return
set startmsecs [clock clicks -milliseconds]
set nextupdate [expr $startmsecs + 100]
initgraph
set todo [lindex $startcommits 0]
drawrest 0 1
}
proc drawrest {level startix} {
global phase stopped redisplaying selectedline
global datemode currentparents todo
global numcommits
global nextupdate startmsecs startcommits idline
if {$level >= 0} {
set phase drawgraph
set startid [lindex $startcommits $startix]
set startline -1
if {$startid != {}} {
set startline $idline($startid)
}
while 1 {
if {$stopped} break
drawcommitline $level
set hard [updatetodo $level $datemode]
if {$numcommits == $startline} {
lappend todo $startid
set hard 1
incr startix
set startid [lindex $startcommits $startix]
set startline -1
if {$startid != {}} {
set startline $idline($startid)
}
}
if {$hard} {
set level [decidenext]
if {$level < 0} break
drawslants
}
if {[clock clicks -milliseconds] >= $nextupdate} {
update
incr nextupdate 100
}
}
}
set phase {}
set drawmsecs [expr [clock clicks -milliseconds] - $startmsecs]
#puts "overall $drawmsecs ms for $numcommits commits"
if {$redisplaying} {
if {$stopped == 0 && [info exists selectedline]} {
selectline $selectedline
}
if {$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 $l
if {$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
$ctext config -cursor $textcursor
}
}
}
proc findpatches {} {
global findstring selectedline numcommits
global findprocpid findprocfile
global finddidsel ctext lineid findinprogress
global findinsertpos
if {$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
$ctext config -cursor 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
$ctext config -cursor 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 $t
}
}
proc unmarkmatches {} {
global matchinglines findids
allcanvs delete matches
catch {unset matchinglines}
catch {unset findids}
}
proc selcanvline {w x y} {
global canv canvy0 ctext linespc selectedline
global lineid linehtag linentag linedtag rowtextx
set ymax [lindex [$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
}
proc selectline {l} {
global canv canv2 canv3 ctext commitinfo selectedline
global lineid linehtag linentag linedtag
global canvy0 linespc parents nparents
global cflist currentid sha1entry
global commentend idtags
$canv delete hover
if {![info exists lineid($l)] || ![info exists linehtag($l)]} return
$canv delete secsel
set t [eval $canv create rect [$canv bbox $linehtag($l)] -outline {{}} \
-tags secsel -fill [$canv cget -selectbackground]]
$canv lower $t
$canv2 delete secsel
set t [eval $canv2 create rect [$canv2 bbox $linentag($l)] -outline {{}} \
-tags secsel -fill [$canv2 cget -selectbackground]]
$canv2 lower $t
$canv3 delete secsel
set t [eval $canv3 create rect [$canv3 bbox $linedtag($l)] -outline {{}} \
-tags secsel -fill [$canv3 cget -selectbackground]]
$canv3 lower $t
set y [expr {$canvy0 + $l * $linespc}]
set ymax [lindex [$canv cget -scrollregion] 3]
set ytop [expr {$y - $linespc - 1}]
set ybot [expr {$y + $linespc + 1}]
set wnow [$canv yview]
set wtop [expr [lindex $wnow 0] * $ymax]
set wbot [expr [lindex $wnow 1] * $ymax]
set wh [expr {$wbot - $wtop}]
set newtop $wtop
if {$ytop < $wtop} {
if {$ybot < $wtop} {
set newtop [expr {$y - $wh / 2.0}]
} else {
set newtop $ytop
if {$newtop > $wtop - $linespc} {
set newtop [expr {$wtop - $linespc}]
}
}
} elseif {$ybot > $wbot} {
if {$ytop > $wbot} {
set newtop [expr {$y - $wh / 2.0}]
} else {
set newtop [expr {$ybot - $wh}]
if {$newtop < $wtop + $linespc} {
set newtop [expr {$wtop + $linespc}]
}
}
}
if {$newtop != $wtop} {
if {$newtop < 0} {
set newtop 0
}
allcanvs yview moveto [expr $newtop * 1.0 / $ymax]
}
set selectedline $l
set id $lineid($l)
set currentid $id
$sha1entry delete 0 end
$sha1entry insert 0 $id
$sha1entry selection from 0
$sha1entry selection to end
$ctext conf -state normal
$ctext delete 0.0 end
$ctext mark set fmark.0 0.0
$ctext mark gravity fmark.0 left
set info $commitinfo($id)
$ctext insert end "Author: [lindex $info 1] [lindex $info 2]\n"
$ctext insert end "Committer: [lindex $info 3] [lindex $info 4]\n"
if {[info exists idtags($id)]} {
$ctext insert end "Tags:"
foreach tag $idtags($id) {
$ctext insert end " $tag"
}
$ctext insert end "\n"
}
$ctext insert end "\n"
$ctext insert end [lindex $info 5]
$ctext insert end "\n"
$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
}
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)]} {
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
# 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
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
showmergediff
}
proc showmergediff {} {
global cflist diffmergeid mergefilelist
set files $mergefilelist($diffmergeid)
foreach f $files {
$cflist insert end $f
}
}
proc startdiff {ids} {
global treediffs diffids treepending diffmergeid
set diffids $ids
catch {unset diffmergeid}
if {![info exists treediffs($ids)]} {
if {![info exists treepending]} {
gettreediffs $ids
}
} else {
addtocflist $ids
}
}
proc addtocflist {ids} {
global treediffs cflist
foreach f $treediffs($ids) {
$cflist insert end $f
}
getblobdiffs $ids
}
proc gettreediffs {ids} {
global treediff parents treepending
set treepending $ids
set treediff {}
set id [lindex $ids 0]
set p [lindex $ids 1]
if [catch {set gdtf [open "|git-diff-tree -r $p $id" r]}] return
fconfigure $gdtf -blocking 0
fileevent $gdtf readable [list gettreediffline $gdtf $ids]
}
proc gettreediffline {gdtf ids} {
global treediff treediffs treepending diffids diffmergeid
set n [gets $gdtf line]
if {$n < 0} {
if {![eof $gdtf]} return
close $gdtf
set treediffs($ids) $treediff
unset treepending
if {$ids != $diffids} {
gettreediffs $diffids
} else {
if {[info exists diffmergeid]} {
contmergediff $ids
} else {
addtocflist $ids
}
}
return
}
set file [lindex $line 5]
lappend treediff $file
}
proc getblobdiffs {ids} {
global diffopts blobdifffd diffids env curdifftag curtagstart
global diffindex difffilestart nextupdate diffinhdr
set id [lindex $ids 0]
set p [lindex $ids 1]
set env(GIT_DIFF_OPTS) $diffopts
set cmd [list | git-diff-tree -r -p -C $p $id]
if {[catch {set bdf [open $cmd r]} err]} {
puts "error getting diffs: $err"
return
}
set diffinhdr 0
fconfigure $bdf -blocking 0
set blobdifffd($ids) $bdf
set curdifftag Comments
set curtagstart 0.0
set diffindex 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 diffindex difffilestart
global nextupdate diffinhdr
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]} {
# start of a new file
$ctext insert end "\n"
$ctext tag add $curdifftag $curtagstart end
set curtagstart [$ctext index "end - 1c"]
set header $fname
set here [$ctext index "end - 1c"]
set difffilestart($diffindex) $here
incr diffindex
# start mark names at fmark.1 for first file
$ctext mark set fmark.$diffindex $here
$ctext mark gravity fmark.$diffindex left
set curdifftag "f:$fname"
$ctext tag delete $curdifftag
set l [expr {(78 - [string length $header]) / 2}]
set pad [string range "----------------------------------------" 1 $l]
$ctext insert end "$pad $header $pad\n" filesep
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]} {
$ctext yview $difffilestart($i)
break
}
}
}
proc listboxsel {} {
global ctext cflist currentid treediffs
if {![info exists currentid]} return
set sel [lsort [$cflist curselection]]
if {$sel eq {}} return
set first [lindex $sel 0]
catch {$ctext yview fmark.$first}
}
proc setcoords {} {
global linespc charspc canvx0 canvy0 mainfont
set linespc [font metrics $mainfont -linespace]
set charspc [font measure $mainfont "m"]
set canvy0 [expr 3 + 0.5 * $linespc]
set canvx0 [expr 3 + 0.5 * $linespc]
}
proc redisplay {} {
global selectedline stopped redisplaying phase
if {$stopped > 1} return
if {$phase == "getcommits"} return
set redisplaying 1
if {$phase == "drawgraph" || $phase == "incrdraw"} {
set stopped 1
} else {
drawgraph
}
}
proc incrfont {inc} {
global mainfont namefont textfont selectedline ctext canv phase
global stopped entries
unmarkmatches
set mainfont [lreplace $mainfont 1 1 [expr {[lindex $mainfont 1] + $inc}]]
set namefont [lreplace $namefont 1 1 [expr {[lindex $namefont 1] + $inc}]]
set textfont [lreplace $textfont 1 1 [expr {[lindex $textfont 1] + $inc}]]
setcoords
$ctext conf -font $textfont
$ctext tag conf filesep -font [concat $textfont bold]
foreach e $entries {
$e conf -font $mainfont
}
if {$phase == "getcommits"} {
$canv itemconf textitems -font $mainfont
}
redisplay
}
proc clearsha1 {} {
global sha1entry sha1string
if {[string length $sha1string] == 40} {
$sha1entry delete 0 end
}
}
proc sha1change {n1 n2 op} {
global sha1string currentid sha1but
if {$sha1string == {}
|| ([info exists currentid] && $sha1string == $currentid)} {
set state disabled
} else {
set state normal
}
if {[$sha1but cget -state] == $state} return
if {$state == "normal"} {
$sha1but conf -state normal -relief raised -text "Goto: "
} else {
$sha1but conf -state disabled -relief flat -text "SHA1 ID: "
}
}
proc gotocommit {} {
global sha1string currentid idline tagids
global lineid numcommits
if {$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)
return
}
if {[regexp {^[0-9a-fA-F]{4,}$} $sha1string]} {
set type "SHA1 id"
} else {
set type "Tag"
}
error_popup "$type $sha1string is not known"
}
proc lineenter {x y id} {
global hoverx hovery hoverid hovertimer
global commitinfo canv
if {![info exists commitinfo($id)]} return
set hoverx $x
set hovery $y
set hoverid $id
if {[info exists hovertimer]} {
after cancel $hovertimer
}
set hovertimer [after 500 linehover]
$canv delete hover
}
proc linemotion {x y id} {
global hoverx hovery hoverid hovertimer
if {[info exists hoverid] && $id == $hoverid} {
set hoverx $x
set hovery $y
if {[info exists hovertimer]} {
after cancel $hovertimer
}
set hovertimer [after 500 linehover]
}
}
proc lineleave {id} {
global hoverid hovertimer canv
if {[info exists hoverid] && $id == $hoverid} {
$canv delete hover
if {[info exists hovertimer]} {
after cancel $hovertimer
unset hovertimer
}
unset hoverid
}
}
proc linehover {} {
global hoverx hovery hoverid hovertimer
global canv linespc lthickness
global commitinfo mainfont
set text [lindex $commitinfo($hoverid) 0]
set ymax [lindex [$canv cget -scrollregion] 3]
if {$ymax == {}} return
set yfrac [lindex [$canv yview] 0]
set x [expr {$hoverx + 2 * $linespc}]
set y [expr {$hovery + $yfrac * $ymax - $linespc / 2}]
set x0 [expr {$x - 2 * $lthickness}]
set y0 [expr {$y - 2 * $lthickness}]
set x1 [expr {$x + [font measure $mainfont $text] + 2 * $lthickness}]
set y1 [expr {$y + $linespc + 2 * $lthickness}]
set t [$canv create rectangle $x0 $y0 $x1 $y1 \
-fill \#ffff80 -outline black -width 1 -tags hover]
$canv raise $t
set t [$canv create text $x $y -anchor nw -text $text -tags hover]
$canv raise $t
}
proc lineclick {x y id} {
global ctext commitinfo children cflist canv
unmarkmatches
$canv delete hover
# fill the details pane with info about this line
$ctext conf -state normal
$ctext delete 0.0 end
$ctext insert end "Parent:\n "
catch {destroy $ctext.$id}
button $ctext.$id -text "Go:" -command "selbyid $id" \
-padx 4 -pady 0
$ctext window create end -window $ctext.$id -align center
set info $commitinfo($id)
$ctext insert end "\t[lindex $info 0]\n"
$ctext insert end "\tAuthor:\t[lindex $info 1]\n"
$ctext insert end "\tDate:\t[lindex $info 2]\n"
$ctext insert end "\tID:\t$id\n"
if {[info exists children($id)]} {
$ctext insert end "\nChildren:"
foreach child $children($id) {
$ctext insert end "\n "
catch {destroy $ctext.$child}
button $ctext.$child -text "Go:" -command "selbyid $child" \
-padx 4 -pady 0
$ctext window create end -window $ctext.$child -align center
set info $commitinfo($child)
$ctext insert end "\t[lindex $info 0]"
}
}
$ctext conf -state disabled
$cflist delete 0 end
}
proc selbyid {id} {
global idline
if {[info exists idline($id)]} {
selectline $idline($id)
}
}
proc mstime {} {
global startmstime
if {![info exists startmstime]} {
set startmstime [clock clicks -milliseconds]
}
return [format "%.3f" [expr {([clock click -milliseconds] - $startmstime) / 1000.0}]]
}
proc rowmenu {x y id} {
global rowctxmenu idline selectedline rowmenuid
if {![info exists selectedline] || $idline($id) eq $selectedline} {
set state disabled
} else {
set state normal
}
$rowctxmenu entryconfigure 0 -state $state
$rowctxmenu entryconfigure 1 -state $state
$rowctxmenu entryconfigure 2 -state $state
set rowmenuid $id
tk_popup $rowctxmenu $x $y
}
proc diffvssel {dirn} {
global rowmenuid selectedline lineid
global ctext cflist
global commitinfo
if {![info exists selectedline]} return
if {$dirn} {
set oldid $lineid($selectedline)
set newid $rowmenuid
} else {
set oldid $rowmenuid
set newid $lineid($selectedline)
}
$ctext conf -state normal
$ctext delete 0.0 end
$ctext mark set fmark.0 0.0
$ctext mark gravity fmark.0 left
$cflist delete 0 end
$cflist insert end "Top"
$ctext insert end "From $oldid\n "
$ctext insert end [lindex $commitinfo($oldid) 0]
$ctext insert end "\n\nTo $newid\n "
$ctext insert end [lindex $commitinfo($newid) 0]
$ctext insert end "\n"
$ctext conf -state disabled
$ctext tag delete Comments
$ctext tag remove found 1.0 end
startdiff $newid [list $oldid]
}
proc mkpatch {} {
global rowmenuid currentid commitinfo patchtop patchnum
if {![info exists currentid]} return
set oldid $currentid
set oldhead [lindex $commitinfo($oldid) 0]
set newid $rowmenuid
set newhead [lindex $commitinfo($newid) 0]
set top .patch
set patchtop $top
catch {destroy $top}
toplevel $top
label $top.title -text "Generate patch"
grid $top.title - -pady 10
label $top.from -text "From:"
entry $top.fromsha1 -width 40 -relief flat
$top.fromsha1 insert 0 $oldid
$top.fromsha1 conf -state readonly
grid $top.from $top.fromsha1 -sticky w
entry $top.fromhead -width 60 -relief flat
$top.fromhead insert 0 $oldhead
$top.fromhead conf -state readonly
grid x $top.fromhead -sticky w
label $top.to -text "To:"
entry $top.tosha1 -width 40 -relief flat
$top.tosha1 insert 0 $newid
$top.tosha1 conf -state readonly
grid $top.to $top.tosha1 -sticky w
entry $top.tohead -width 60 -relief flat
$top.tohead insert 0 $newhead
$top.tohead conf -state readonly
grid x $top.tohead -sticky w
button $top.rev -text "Reverse" -command mkpatchrev -padx 5
grid $top.rev x -pady 10
label $top.flab -text "Output file:"
entry $top.fname -width 60
$top.fname insert 0 [file normalize "patch$patchnum.patch"]
incr patchnum
grid $top.flab $top.fname -sticky w
frame $top.buts
button $top.buts.gen -text "Generate" -command mkpatchgo
button $top.buts.can -text "Cancel" -command mkpatchcan
grid $top.buts.gen $top.buts.can
grid columnconfigure $top.buts 0 -weight 1 -uniform a
grid columnconfigure $top.buts 1 -weight 1 -uniform a
grid $top.buts - -pady 10 -sticky ew
focus $top.fname
}
proc mkpatchrev {} {
global patchtop
set oldid [$patchtop.fromsha1 get]
set oldhead [$patchtop.fromhead get]
set newid [$patchtop.tosha1 get]
set newhead [$patchtop.tohead get]
foreach e [list fromsha1 fromhead tosha1 tohead] \
v [list $newid $newhead $oldid $oldhead] {
$patchtop.$e conf -state normal
$patchtop.$e delete 0 end
$patchtop.$e insert 0 $v
$patchtop.$e conf -state readonly
}
}
proc mkpatchgo {} {
global patchtop
set oldid [$patchtop.fromsha1 get]
set newid [$patchtop.tosha1 get]
set fname [$patchtop.fname get]
if {[catch {exec git-diff-tree -p $oldid $newid >$fname &} err]} {
error_popup "Error creating patch: $err"
}
catch {destroy $patchtop}
unset patchtop
}
proc mkpatchcan {} {
global patchtop
catch {destroy $patchtop}
unset patchtop
}
proc mktag {} {
global rowmenuid mktagtop commitinfo
set top .maketag
set mktagtop $top
catch {destroy $top}
toplevel $top
label $top.title -text "Create tag"
grid $top.title - -pady 10
label $top.id -text "ID:"
entry $top.sha1 -width 40 -relief flat
$top.sha1 insert 0 $rowmenuid
$top.sha1 conf -state readonly
grid $top.id $top.sha1 -sticky w
entry $top.head -width 60 -relief flat
$top.head insert 0 [lindex $commitinfo($rowmenuid) 0]
$top.head conf -state readonly
grid x $top.head -sticky w
label $top.tlab -text "Tag name:"
entry $top.tag -width 60
grid $top.tlab $top.tag -sticky w
frame $top.buts
button $top.buts.gen -text "Create" -command mktaggo
button $top.buts.can -text "Cancel" -command mktagcan
grid $top.buts.gen $top.buts.can
grid columnconfigure $top.buts 0 -weight 1 -uniform a
grid columnconfigure $top.buts 1 -weight 1 -uniform a
grid $top.buts - -pady 10 -sticky ew
focus $top.tag
}
proc domktag {} {
global mktagtop env tagids idtags
global idpos idline linehtag canv selectedline
set id [$mktagtop.sha1 get]
set tag [$mktagtop.tag get]
if {$tag == {}} {
error_popup "No tag name specified"
return
}
if {[info exists tagids($tag)]} {
error_popup "Tag \"$tag\" already exists"
return
}
if {[catch {
set dir ".git"
if {[info exists env(GIT_DIR)]} {
set dir $env(GIT_DIR)
}
set fname [file join $dir "refs/tags" $tag]
set f [open $fname w]
puts $f $id
close $f
} err]} {
error_popup "Error creating tag: $err"
return
}
set tagids($tag) $id
lappend idtags($id) $tag
$canv delete tag.$id
set xt [eval drawtags $id $idpos($id)]
$canv coords $linehtag($idline($id)) $xt [lindex $idpos($id) 2]
if {[info exists selectedline] && $selectedline == $idline($id)} {
selectline $selectedline
}
}
proc mktagcan {} {
global mktagtop
catch {destroy $mktagtop}
unset mktagtop
}
proc mktaggo {} {
domktag
mktagcan
}
proc writecommit {} {
global rowmenuid wrcomtop commitinfo wrcomcmd
set top .writecommit
set wrcomtop $top
catch {destroy $top}
toplevel $top
label $top.title -text "Write commit to file"
grid $top.title - -pady 10
label $top.id -text "ID:"
entry $top.sha1 -width 40 -relief flat
$top.sha1 insert 0 $rowmenuid
$top.sha1 conf -state readonly
grid $top.id $top.sha1 -sticky w
entry $top.head -width 60 -relief flat
$top.head insert 0 [lindex $commitinfo($rowmenuid) 0]
$top.head conf -state readonly
grid x $top.head -sticky w
label $top.clab -text "Command:"
entry $top.cmd -width 60 -textvariable wrcomcmd
grid $top.clab $top.cmd -sticky w -pady 10
label $top.flab -text "Output file:"
entry $top.fname -width 60
$top.fname insert 0 [file normalize "commit-[string range $rowmenuid 0 6]"]
grid $top.flab $top.fname -sticky w
frame $top.buts
button $top.buts.gen -text "Write" -command wrcomgo
button $top.buts.can -text "Cancel" -command wrcomcan
grid $top.buts.gen $top.buts.can
grid columnconfigure $top.buts 0 -weight 1 -uniform a
grid columnconfigure $top.buts 1 -weight 1 -uniform a
grid $top.buts - -pady 10 -sticky ew
focus $top.fname
}
proc wrcomgo {} {
global wrcomtop
set id [$wrcomtop.sha1 get]
set cmd "echo $id | [$wrcomtop.cmd get]"
set fname [$wrcomtop.fname get]
if {[catch {exec sh -c $cmd >$fname &} err]} {
error_popup "Error writing commit: $err"
}
catch {destroy $wrcomtop}
unset wrcomtop
}
proc wrcomcan {} {
global wrcomtop
catch {destroy $wrcomtop}
unset wrcomtop
}
proc doquit {} {
global stopped
set stopped 100
destroy .
}
# defaults...
set datemode 0
set boldnames 0
set diffopts "-U 5 -p"
set wrcomcmd "git-diff-tree --stdin -p --pretty"
set mainfont {Helvetica 9}
set textfont {Courier 9}
set findmergefiles 0
set gaudydiff 0
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 stopped 0
set redisplaying 0
set stuffsaved 0
set patchnum 0
setcoords
makewindow
readrefs
getcommits $revtreeargs