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gitk
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executable file
·12619 lines (11648 loc) · 343 KB
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#!/bin/sh
# Tcl ignores the next line -*- tcl -*- \
exec wish "$0" -- "$@"
# Copyright © 2005-2016 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.
package require Tk
proc hasworktree {} {
return [expr {[exec git rev-parse --is-bare-repository] == "false" &&
[exec git rev-parse --is-inside-git-dir] == "false"}]
}
proc reponame {} {
global gitdir
set n [file normalize $gitdir]
if {[string match "*/.git" $n]} {
set n [string range $n 0 end-5]
}
return [file tail $n]
}
proc gitworktree {} {
variable _gitworktree
if {[info exists _gitworktree]} {
return $_gitworktree
}
# v1.7.0 introduced --show-toplevel to return the canonical work-tree
if {[catch {set _gitworktree [exec git rev-parse --show-toplevel]}]} {
# try to set work tree from environment, core.worktree or use
# cdup to obtain a relative path to the top of the worktree. If
# run from the top, the ./ prefix ensures normalize expands pwd.
if {[catch { set _gitworktree $env(GIT_WORK_TREE) }]} {
catch {set _gitworktree [exec git config --get core.worktree]}
if {$_gitworktree eq ""} {
set _gitworktree [file normalize ./[exec git rev-parse --show-cdup]]
}
}
}
return $_gitworktree
}
# A simple scheduler for compute-intensive stuff.
# The aim is to make sure that event handlers for GUI actions can
# run at least every 50-100 ms. Unfortunately fileevent handlers are
# run before X event handlers, so reading from a fast source can
# make the GUI completely unresponsive.
proc run args {
global isonrunq runq currunq
set script $args
if {[info exists isonrunq($script)]} return
if {$runq eq {} && ![info exists currunq]} {
after idle dorunq
}
lappend runq [list {} $script]
set isonrunq($script) 1
}
proc filerun {fd script} {
fileevent $fd readable [list filereadable $fd $script]
}
proc filereadable {fd script} {
global runq currunq
fileevent $fd readable {}
if {$runq eq {} && ![info exists currunq]} {
after idle dorunq
}
lappend runq [list $fd $script]
}
proc nukefile {fd} {
global runq
for {set i 0} {$i < [llength $runq]} {} {
if {[lindex $runq $i 0] eq $fd} {
set runq [lreplace $runq $i $i]
} else {
incr i
}
}
}
proc dorunq {} {
global isonrunq runq currunq
set tstart [clock clicks -milliseconds]
set t0 $tstart
while {[llength $runq] > 0} {
set fd [lindex $runq 0 0]
set script [lindex $runq 0 1]
set currunq [lindex $runq 0]
set runq [lrange $runq 1 end]
set repeat [eval $script]
unset currunq
set t1 [clock clicks -milliseconds]
set t [expr {$t1 - $t0}]
if {$repeat ne {} && $repeat} {
if {$fd eq {} || $repeat == 2} {
# script returns 1 if it wants to be readded
# file readers return 2 if they could do more straight away
lappend runq [list $fd $script]
} else {
fileevent $fd readable [list filereadable $fd $script]
}
} elseif {$fd eq {}} {
unset isonrunq($script)
}
set t0 $t1
if {$t1 - $tstart >= 80} break
}
if {$runq ne {}} {
after idle dorunq
}
}
proc reg_instance {fd} {
global commfd leftover loginstance
set i [incr loginstance]
set commfd($i) $fd
set leftover($i) {}
return $i
}
proc unmerged_files {files} {
global nr_unmerged
# find the list of unmerged files
set mlist {}
set nr_unmerged 0
if {[catch {
set fd [open "| git ls-files -u" r]
} err]} {
show_error {} . "[mc "Couldn't get list of unmerged files:"] $err"
exit 1
}
while {[gets $fd line] >= 0} {
set i [string first "\t" $line]
if {$i < 0} continue
set fname [string range $line [expr {$i+1}] end]
if {[lsearch -exact $mlist $fname] >= 0} continue
incr nr_unmerged
if {$files eq {} || [path_filter $files $fname]} {
lappend mlist $fname
}
}
catch {close $fd}
return $mlist
}
proc parseviewargs {n arglist} {
global vdatemode vmergeonly vflags vdflags vrevs vfiltered vorigargs env
global vinlinediff
global worddiff git_version
set vdatemode($n) 0
set vmergeonly($n) 0
set vinlinediff($n) 0
set glflags {}
set diffargs {}
set nextisval 0
set revargs {}
set origargs $arglist
set allknown 1
set filtered 0
set i -1
foreach arg $arglist {
incr i
if {$nextisval} {
lappend glflags $arg
set nextisval 0
continue
}
switch -glob -- $arg {
"-d" -
"--date-order" {
set vdatemode($n) 1
# remove from origargs in case we hit an unknown option
set origargs [lreplace $origargs $i $i]
incr i -1
}
"-[puabwcrRBMC]" -
"--no-renames" - "--full-index" - "--binary" - "--abbrev=*" -
"--find-copies-harder" - "-l*" - "--ext-diff" - "--no-ext-diff" -
"--src-prefix=*" - "--dst-prefix=*" - "--no-prefix" -
"-O*" - "--text" - "--full-diff" - "--ignore-space-at-eol" -
"--ignore-space-change" - "-U*" - "--unified=*" {
# These request or affect diff output, which we don't want.
# Some could be used to set our defaults for diff display.
lappend diffargs $arg
}
"--raw" - "--patch-with-raw" - "--patch-with-stat" -
"--name-only" - "--name-status" - "--color" -
"--log-size" - "--pretty=*" - "--decorate" - "--abbrev-commit" -
"--cc" - "-z" - "--header" - "--parents" - "--boundary" -
"--no-color" - "-g" - "--walk-reflogs" - "--no-walk" -
"--timestamp" - "relative-date" - "--date=*" - "--stdin" -
"--objects" - "--objects-edge" - "--reverse" {
# These cause our parsing of git log's output to fail, or else
# they're options we want to set ourselves, so ignore them.
}
"--color-words*" - "--word-diff=color" {
# These trigger a word diff in the console interface,
# so help the user by enabling our own support
if {[package vcompare $git_version "1.7.2"] >= 0} {
set worddiff [mc "Color words"]
}
}
"--word-diff*" {
if {[package vcompare $git_version "1.7.2"] >= 0} {
set worddiff [mc "Markup words"]
}
}
"--stat=*" - "--numstat" - "--shortstat" - "--summary" -
"--check" - "--exit-code" - "--quiet" - "--topo-order" -
"--full-history" - "--dense" - "--sparse" -
"--follow" - "--left-right" - "--encoding=*" {
# These are harmless, and some are even useful
lappend glflags $arg
}
"--diff-filter=*" - "--no-merges" - "--unpacked" -
"--max-count=*" - "--skip=*" - "--since=*" - "--after=*" -
"--until=*" - "--before=*" - "--max-age=*" - "--min-age=*" -
"--author=*" - "--committer=*" - "--grep=*" - "-[iE]" -
"--remove-empty" - "--first-parent" - "--cherry-pick" -
"-S*" - "-G*" - "--pickaxe-all" - "--pickaxe-regex" -
"--simplify-by-decoration" {
# These mean that we get a subset of the commits
set filtered 1
lappend glflags $arg
}
"-L*" {
# Line-log with 'stuck' argument (unstuck form is
# not supported)
set filtered 1
set vinlinediff($n) 1
set allknown 0
lappend glflags $arg
}
"-n" {
# This appears to be the only one that has a value as a
# separate word following it
set filtered 1
set nextisval 1
lappend glflags $arg
}
"--not" - "--all" {
lappend revargs $arg
}
"--merge" {
set vmergeonly($n) 1
# git rev-parse doesn't understand --merge
lappend revargs --gitk-symmetric-diff-marker MERGE_HEAD...HEAD
}
"--no-replace-objects" {
set env(GIT_NO_REPLACE_OBJECTS) "1"
}
"-*" {
# Other flag arguments including -<n>
if {[string is digit -strict [string range $arg 1 end]]} {
set filtered 1
} else {
# a flag argument that we don't recognize;
# that means we can't optimize
set allknown 0
}
lappend glflags $arg
}
default {
# Non-flag arguments specify commits or ranges of commits
if {[string match "*...*" $arg]} {
lappend revargs --gitk-symmetric-diff-marker
}
lappend revargs $arg
}
}
}
set vdflags($n) $diffargs
set vflags($n) $glflags
set vrevs($n) $revargs
set vfiltered($n) $filtered
set vorigargs($n) $origargs
return $allknown
}
proc parseviewrevs {view revs} {
global vposids vnegids
if {$revs eq {}} {
set revs HEAD
} elseif {[lsearch -exact $revs --all] >= 0} {
lappend revs HEAD
}
if {[catch {set ids [eval exec git rev-parse $revs]} err]} {
# we get stdout followed by stderr in $err
# for an unknown rev, git rev-parse echoes it and then errors out
set errlines [split $err "\n"]
set badrev {}
for {set l 0} {$l < [llength $errlines]} {incr l} {
set line [lindex $errlines $l]
if {!([string length $line] == 40 && [string is xdigit $line])} {
if {[string match "fatal:*" $line]} {
if {[string match "fatal: ambiguous argument*" $line]
&& $badrev ne {}} {
if {[llength $badrev] == 1} {
set err "unknown revision $badrev"
} else {
set err "unknown revisions: [join $badrev ", "]"
}
} else {
set err [join [lrange $errlines $l end] "\n"]
}
break
}
lappend badrev $line
}
}
error_popup "[mc "Error parsing revisions:"] $err"
return {}
}
set ret {}
set pos {}
set neg {}
set sdm 0
foreach id [split $ids "\n"] {
if {$id eq "--gitk-symmetric-diff-marker"} {
set sdm 4
} elseif {[string match "^*" $id]} {
if {$sdm != 1} {
lappend ret $id
if {$sdm == 3} {
set sdm 0
}
}
lappend neg [string range $id 1 end]
} else {
if {$sdm != 2} {
lappend ret $id
} else {
lset ret end $id...[lindex $ret end]
}
lappend pos $id
}
incr sdm -1
}
set vposids($view) $pos
set vnegids($view) $neg
return $ret
}
# Start off a git log process and arrange to read its output
proc start_rev_list {view} {
global startmsecs commitidx viewcomplete curview
global tclencoding
global viewargs viewargscmd viewfiles vfilelimit
global showlocalchanges
global viewactive viewinstances vmergeonly
global mainheadid viewmainheadid viewmainheadid_orig
global vcanopt vflags vrevs vorigargs
global show_notes
set startmsecs [clock clicks -milliseconds]
set commitidx($view) 0
# these are set this way for the error exits
set viewcomplete($view) 1
set viewactive($view) 0
varcinit $view
set args $viewargs($view)
if {$viewargscmd($view) ne {}} {
if {[catch {
set str [exec sh -c $viewargscmd($view)]
} err]} {
error_popup "[mc "Error executing --argscmd command:"] $err"
return 0
}
set args [concat $args [split $str "\n"]]
}
set vcanopt($view) [parseviewargs $view $args]
set files $viewfiles($view)
if {$vmergeonly($view)} {
set files [unmerged_files $files]
if {$files eq {}} {
global nr_unmerged
if {$nr_unmerged == 0} {
error_popup [mc "No files selected: --merge specified but\
no files are unmerged."]
} else {
error_popup [mc "No files selected: --merge specified but\
no unmerged files are within file limit."]
}
return 0
}
}
set vfilelimit($view) $files
if {$vcanopt($view)} {
set revs [parseviewrevs $view $vrevs($view)]
if {$revs eq {}} {
return 0
}
set args [concat $vflags($view) $revs]
} else {
set args $vorigargs($view)
}
if {[catch {
set fd [open [concat | git log --no-color -z --pretty=raw $show_notes \
--parents --boundary $args "--" $files] r]
} err]} {
error_popup "[mc "Error executing git log:"] $err"
return 0
}
set i [reg_instance $fd]
set viewinstances($view) [list $i]
set viewmainheadid($view) $mainheadid
set viewmainheadid_orig($view) $mainheadid
if {$files ne {} && $mainheadid ne {}} {
get_viewmainhead $view
}
if {$showlocalchanges && $viewmainheadid($view) ne {}} {
interestedin $viewmainheadid($view) dodiffindex
}
fconfigure $fd -blocking 0 -translation lf -eofchar {}
if {$tclencoding != {}} {
fconfigure $fd -encoding $tclencoding
}
filerun $fd [list getcommitlines $fd $i $view 0]
nowbusy $view [mc "Reading"]
set viewcomplete($view) 0
set viewactive($view) 1
return 1
}
proc stop_instance {inst} {
global commfd leftover
set fd $commfd($inst)
catch {
set pid [pid $fd]
if {$::tcl_platform(platform) eq {windows}} {
exec taskkill /pid $pid
} else {
exec kill $pid
}
}
catch {close $fd}
nukefile $fd
unset commfd($inst)
unset leftover($inst)
}
proc stop_backends {} {
global commfd
foreach inst [array names commfd] {
stop_instance $inst
}
}
proc stop_rev_list {view} {
global viewinstances
foreach inst $viewinstances($view) {
stop_instance $inst
}
set viewinstances($view) {}
}
proc reset_pending_select {selid} {
global pending_select mainheadid selectheadid
if {$selid ne {}} {
set pending_select $selid
} elseif {$selectheadid ne {}} {
set pending_select $selectheadid
} else {
set pending_select $mainheadid
}
}
proc getcommits {selid} {
global canv curview need_redisplay viewactive
initlayout
if {[start_rev_list $curview]} {
reset_pending_select $selid
show_status [mc "Reading commits..."]
set need_redisplay 1
} else {
show_status [mc "No commits selected"]
}
}
proc updatecommits {} {
global curview vcanopt vorigargs vfilelimit viewinstances
global viewactive viewcomplete tclencoding
global startmsecs showneartags showlocalchanges
global mainheadid viewmainheadid viewmainheadid_orig pending_select
global hasworktree
global varcid vposids vnegids vflags vrevs
global show_notes
set hasworktree [hasworktree]
rereadrefs
set view $curview
if {$mainheadid ne $viewmainheadid_orig($view)} {
if {$showlocalchanges} {
dohidelocalchanges
}
set viewmainheadid($view) $mainheadid
set viewmainheadid_orig($view) $mainheadid
if {$vfilelimit($view) ne {}} {
get_viewmainhead $view
}
}
if {$showlocalchanges} {
doshowlocalchanges
}
if {$vcanopt($view)} {
set oldpos $vposids($view)
set oldneg $vnegids($view)
set revs [parseviewrevs $view $vrevs($view)]
if {$revs eq {}} {
return
}
# note: getting the delta when negative refs change is hard,
# and could require multiple git log invocations, so in that
# case we ask git log for all the commits (not just the delta)
if {$oldneg eq $vnegids($view)} {
set newrevs {}
set npos 0
# take out positive refs that we asked for before or
# that we have already seen
foreach rev $revs {
if {[string length $rev] == 40} {
if {[lsearch -exact $oldpos $rev] < 0
&& ![info exists varcid($view,$rev)]} {
lappend newrevs $rev
incr npos
}
} else {
lappend $newrevs $rev
}
}
if {$npos == 0} return
set revs $newrevs
set vposids($view) [lsort -unique [concat $oldpos $vposids($view)]]
}
set args [concat $vflags($view) $revs --not $oldpos]
} else {
set args $vorigargs($view)
}
if {[catch {
set fd [open [concat | git log --no-color -z --pretty=raw $show_notes \
--parents --boundary $args "--" $vfilelimit($view)] r]
} err]} {
error_popup "[mc "Error executing git log:"] $err"
return
}
if {$viewactive($view) == 0} {
set startmsecs [clock clicks -milliseconds]
}
set i [reg_instance $fd]
lappend viewinstances($view) $i
fconfigure $fd -blocking 0 -translation lf -eofchar {}
if {$tclencoding != {}} {
fconfigure $fd -encoding $tclencoding
}
filerun $fd [list getcommitlines $fd $i $view 1]
incr viewactive($view)
set viewcomplete($view) 0
reset_pending_select {}
nowbusy $view [mc "Reading"]
if {$showneartags} {
getallcommits
}
}
proc reloadcommits {} {
global curview viewcomplete selectedline currentid thickerline
global showneartags treediffs commitinterest cached_commitrow
global targetid commitinfo
set selid {}
if {$selectedline ne {}} {
set selid $currentid
}
if {!$viewcomplete($curview)} {
stop_rev_list $curview
}
resetvarcs $curview
set selectedline {}
unset -nocomplain currentid
unset -nocomplain thickerline
unset -nocomplain treediffs
readrefs
changedrefs
if {$showneartags} {
getallcommits
}
clear_display
unset -nocomplain commitinfo
unset -nocomplain commitinterest
unset -nocomplain cached_commitrow
unset -nocomplain targetid
setcanvscroll
getcommits $selid
return 0
}
# This makes a string representation of a positive integer which
# sorts as a string in numerical order
proc strrep {n} {
if {$n < 16} {
return [format "%x" $n]
} elseif {$n < 256} {
return [format "x%.2x" $n]
} elseif {$n < 65536} {
return [format "y%.4x" $n]
}
return [format "z%.8x" $n]
}
# Procedures used in reordering commits from git log (without
# --topo-order) into the order for display.
proc varcinit {view} {
global varcstart vupptr vdownptr vleftptr vbackptr varctok varcrow
global vtokmod varcmod vrowmod varcix vlastins
set varcstart($view) {{}}
set vupptr($view) {0}
set vdownptr($view) {0}
set vleftptr($view) {0}
set vbackptr($view) {0}
set varctok($view) {{}}
set varcrow($view) {{}}
set vtokmod($view) {}
set varcmod($view) 0
set vrowmod($view) 0
set varcix($view) {{}}
set vlastins($view) {0}
}
proc resetvarcs {view} {
global varcid varccommits parents children vseedcount ordertok
global vshortids
foreach vid [array names varcid $view,*] {
unset varcid($vid)
unset children($vid)
unset parents($vid)
}
foreach vid [array names vshortids $view,*] {
unset vshortids($vid)
}
# some commits might have children but haven't been seen yet
foreach vid [array names children $view,*] {
unset children($vid)
}
foreach va [array names varccommits $view,*] {
unset varccommits($va)
}
foreach vd [array names vseedcount $view,*] {
unset vseedcount($vd)
}
unset -nocomplain ordertok
}
# returns a list of the commits with no children
proc seeds {v} {
global vdownptr vleftptr varcstart
set ret {}
set a [lindex $vdownptr($v) 0]
while {$a != 0} {
lappend ret [lindex $varcstart($v) $a]
set a [lindex $vleftptr($v) $a]
}
return $ret
}
proc newvarc {view id} {
global varcid varctok parents children vdatemode
global vupptr vdownptr vleftptr vbackptr varcrow varcix varcstart
global commitdata commitinfo vseedcount varccommits vlastins
set a [llength $varctok($view)]
set vid $view,$id
if {[llength $children($vid)] == 0 || $vdatemode($view)} {
if {![info exists commitinfo($id)]} {
parsecommit $id $commitdata($id) 1
}
set cdate [lindex [lindex $commitinfo($id) 4] 0]
if {![string is integer -strict $cdate]} {
set cdate 0
}
if {![info exists vseedcount($view,$cdate)]} {
set vseedcount($view,$cdate) -1
}
set c [incr vseedcount($view,$cdate)]
set cdate [expr {$cdate ^ 0xffffffff}]
set tok "s[strrep $cdate][strrep $c]"
} else {
set tok {}
}
set ka 0
if {[llength $children($vid)] > 0} {
set kid [lindex $children($vid) end]
set k $varcid($view,$kid)
if {[string compare [lindex $varctok($view) $k] $tok] > 0} {
set ki $kid
set ka $k
set tok [lindex $varctok($view) $k]
}
}
if {$ka != 0} {
set i [lsearch -exact $parents($view,$ki) $id]
set j [expr {[llength $parents($view,$ki)] - 1 - $i}]
append tok [strrep $j]
}
set c [lindex $vlastins($view) $ka]
if {$c == 0 || [string compare $tok [lindex $varctok($view) $c]] < 0} {
set c $ka
set b [lindex $vdownptr($view) $ka]
} else {
set b [lindex $vleftptr($view) $c]
}
while {$b != 0 && [string compare $tok [lindex $varctok($view) $b]] >= 0} {
set c $b
set b [lindex $vleftptr($view) $c]
}
if {$c == $ka} {
lset vdownptr($view) $ka $a
lappend vbackptr($view) 0
} else {
lset vleftptr($view) $c $a
lappend vbackptr($view) $c
}
lset vlastins($view) $ka $a
lappend vupptr($view) $ka
lappend vleftptr($view) $b
if {$b != 0} {
lset vbackptr($view) $b $a
}
lappend varctok($view) $tok
lappend varcstart($view) $id
lappend vdownptr($view) 0
lappend varcrow($view) {}
lappend varcix($view) {}
set varccommits($view,$a) {}
lappend vlastins($view) 0
return $a
}
proc splitvarc {p v} {
global varcid varcstart varccommits varctok vtokmod
global vupptr vdownptr vleftptr vbackptr varcix varcrow vlastins
set oa $varcid($v,$p)
set otok [lindex $varctok($v) $oa]
set ac $varccommits($v,$oa)
set i [lsearch -exact $varccommits($v,$oa) $p]
if {$i <= 0} return
set na [llength $varctok($v)]
# "%" sorts before "0"...
set tok "$otok%[strrep $i]"
lappend varctok($v) $tok
lappend varcrow($v) {}
lappend varcix($v) {}
set varccommits($v,$oa) [lrange $ac 0 [expr {$i - 1}]]
set varccommits($v,$na) [lrange $ac $i end]
lappend varcstart($v) $p
foreach id $varccommits($v,$na) {
set varcid($v,$id) $na
}
lappend vdownptr($v) [lindex $vdownptr($v) $oa]
lappend vlastins($v) [lindex $vlastins($v) $oa]
lset vdownptr($v) $oa $na
lset vlastins($v) $oa 0
lappend vupptr($v) $oa
lappend vleftptr($v) 0
lappend vbackptr($v) 0
for {set b [lindex $vdownptr($v) $na]} {$b != 0} {set b [lindex $vleftptr($v) $b]} {
lset vupptr($v) $b $na
}
if {[string compare $otok $vtokmod($v)] <= 0} {
modify_arc $v $oa
}
}
proc renumbervarc {a v} {
global parents children varctok varcstart varccommits
global vupptr vdownptr vleftptr vbackptr vlastins varcid vtokmod vdatemode
set t1 [clock clicks -milliseconds]
set todo {}
set isrelated($a) 1
set kidchanged($a) 1
set ntot 0
while {$a != 0} {
if {[info exists isrelated($a)]} {
lappend todo $a
set id [lindex $varccommits($v,$a) end]
foreach p $parents($v,$id) {
if {[info exists varcid($v,$p)]} {
set isrelated($varcid($v,$p)) 1
}
}
}
incr ntot
set b [lindex $vdownptr($v) $a]
if {$b == 0} {
while {$a != 0} {
set b [lindex $vleftptr($v) $a]
if {$b != 0} break
set a [lindex $vupptr($v) $a]
}
}
set a $b
}
foreach a $todo {
if {![info exists kidchanged($a)]} continue
B72
set id [lindex $varcstart($v) $a]
if {[llength $children($v,$id)] > 1} {
set children($v,$id) [lsort -command [list vtokcmp $v] \
$children($v,$id)]
}
set oldtok [lindex $varctok($v) $a]
if {!$vdatemode($v)} {
set tok {}
} else {
set tok $oldtok
}
set ka 0
set kid [last_real_child $v,$id]
if {$kid ne {}} {
set k $varcid($v,$kid)
if {[string compare [lindex $varctok($v) $k] $tok] > 0} {
set ki $kid
set ka $k
set tok [lindex $varctok($v) $k]
}
}
if {$ka != 0} {
set i [lsearch -exact $parents($v,$ki) $id]
set j [expr {[llength $parents($v,$ki)] - 1 - $i}]
append tok [strrep $j]
}
if {$tok eq $oldtok} {
continue
}
set id [lindex $varccommits($v,$a) end]
foreach p $parents($v,$id) {
if {[info exists varcid($v,$p)]} {
set kidchanged($varcid($v,$p)) 1
} else {
set sortkids($p) 1
}
}
lset varctok($v) $a $tok
set b [lindex $vupptr($v) $a]
if {$b != $ka} {
if {[string compare [lindex $varctok($v) $ka] $vtokmod($v)] < 0} {
modify_arc $v $ka
}
if {[string compare [lindex $varctok($v) $b] $vtokmod($v)] < 0} {
modify_arc $v $b
}
set c [lindex $vbackptr($v) $a]
set d [lindex $vleftptr($v) $a]
if {$c == 0} {
lset vdownptr($v) $b $d
} else {
lset vleftptr($v) $c $d
}
if {$d != 0} {
lset vbackptr($v) $d $c
}
if {[lindex $vlastins($v) $b] == $a} {
lset vlastins($v) $b $c
}
lset vupptr($v) $a $ka
set c [lindex $vlastins($v) $ka]
if {$c == 0 || \
[string compare $tok [lindex $varctok($v) $c]] < 0} {
set c $ka
set b [lindex $vdownptr($v) $ka]
} else {
set b [lindex $vleftptr($v) $c]
}
while {$b != 0 && \
[string compare $tok [lindex $varctok($v) $b]] >= 0} {
set c $b
set b [lindex $vleftptr($v) $c]
}
if {$c == $ka} {
lset vdownptr($v) $ka $a
lset vbackptr($v) $a 0
} else {
lset vleftptr($v) $c $a
lset vbackptr($v) $a $c
}
lset vleftptr($v) $a $b
if {$b != 0} {
lset vbackptr($v) $b $a
}
lset vlastins($v) $ka $a
}
}
foreach id [array names sortkids] {
if {[llength $children($v,$id)] > 1} {
set children($v,$id) [lsort -command [list vtokcmp $v] \
$children($v,$id)]
}
}
set t2 [clock clicks -milliseconds]
#puts "renumbervarc did [llength $todo] of $ntot arcs in [expr {$t2-$t1}]ms"
}
# Fix up the graph after we have found out that in view $v,
# $p (a commit that we have already seen) is actually the parent
# of the last commit in arc $a.
proc fix_reversal {p a v} {
global varcid varcstart varctok vupptr
set pa $varcid($v,$p)
if {$p ne [lindex $varcstart($v) $pa]} {
splitvarc $p $v
set pa $varcid($v,$p)
}
# seeds always need to be renumbered
if {[lindex $vupptr($v) $pa] == 0 ||
[string compare [lindex $varctok($v) $a] \
[lindex $varctok($v) $pa]] > 0} {
renumbervarc $pa $v
}
}
proc insertrow {id p v} {
global cmitlisted children parents varcid varctok vtokmod
global varccommits ordertok commitidx numcommits curview
global targetid targetrow vshortids
readcommit $id
set vid $v,$id
set cmitlisted($vid) 1
set children($vid) {}
set parents($vid) [list $p]
set a [newvarc $v $id]
set varcid($vid) $a
lappend vshortids($v,[string range $id 0 3]) $id
if {[string compare [lindex $varctok($v) $a] $vtokmod($v)] < 0} {
modify_arc $v $a
}
lappend varccommits($v,$a) $id
set vp $v,$p
if {[llength [lappend children($vp) $id]] > 1} {
set children($vp) [lsort -command [list vtokcmp $v] $children($vp)]
unset -nocomplain ordertok
}
fix_reversal $p $a $v
incr commitidx($v)
if {$v == $curview} {
set numcommits $commitidx($v)
setcanvscroll
if {[info exists targetid]} {
if {![comes_before $targetid $p]} {
incr targetrow
}
}
}
}
proc insertfakerow {id p} {
global varcid varccommits parents children cmitlisted
global commitidx varctok vtokmod targetid targetrow curview numcommits
set v $curview
set a $varcid($v,$p)
set i [lsearch -exact $varccommits($v,$a) $p]
if {$i < 0} {
puts "oops: insertfakerow can't find [shortids $p] on arc $a"
return
}
set children($v,$id) {}
set parents($v,$id) [list $p]
set varcid($v,$id) $a
lappend children($v,$p) $id
set cmitlisted($v,$id) 1