diff options
Diffstat (limited to 'gitk-git/gitk')
| -rw-r--r-- | gitk-git/gitk | 9938 |
1 files changed, 9938 insertions, 0 deletions
diff --git a/gitk-git/gitk b/gitk-git/gitk new file mode 100644 index 0000000000..22bcd18a46 --- /dev/null +++ b/gitk-git/gitk @@ -0,0 +1,9938 @@ +#!/bin/sh +# Tcl ignores the next line -*- tcl -*- \ +exec wish "$0" -- "$@" + +# Copyright © 2005-2008 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 [exec git rev-parse --git-dir] + } +} + +# 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 + + set script $args + if {[info exists isonrunq($script)]} return + if {$runq eq {}} { + 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 + + fileevent $fd readable {} + if {$runq eq {}} { + 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 + + 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 repeat [eval $script] + set t1 [clock clicks -milliseconds] + set t [expr {$t1 - $t0}] + set runq [lrange $runq 1 end] + if {$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 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 $mlist +} + +proc parseviewargs {n arglist} { + global vdatemode vmergeonly vflags vdflags vrevs vfiltered vorigargs + + set vdatemode($n) 0 + set vmergeonly($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 + } + # These request or affect diff output, which we don't want. + # Some could be used to set our defaults for diff display. + "-[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=*" { + lappend diffargs $arg + } + # These cause our parsing of git log's output to fail, or else + # they're options we want to set ourselves, so ignore them. + "--raw" - "--patch-with-raw" - "--patch-with-stat" - + "--name-only" - "--name-status" - "--color" - "--color-words" - + "--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 are harmless, and some are even useful + "--stat=*" - "--numstat" - "--shortstat" - "--summary" - + "--check" - "--exit-code" - "--quiet" - "--topo-order" - + "--full-history" - "--dense" - "--sparse" - + "--follow" - "--left-right" - "--encoding=*" { + lappend glflags $arg + } + # These mean that we get a subset of the commits + "--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*" - "--pickaxe-all" - "--pickaxe-regex" - { + set filtered 1 + lappend glflags $arg + } + # This appears to be the only one that has a value as a + # separate word following it + "-n" { + set filtered 1 + set nextisval 1 + lappend glflags $arg + } + "--not" { + set notflag [expr {!$notflag}] + lappend revargs $arg + } + "--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 + } + # 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 + } + # Non-flag arguments specify commits or ranges of commits + default { + 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 + } + 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 "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 [lindex $ret end]...$id + } + lappend pos $id + } + incr sdm -1 + } + set vposids($view) $pos + set vnegids($view) $neg + return $ret +} + +# Start off a git log process and arrange to read its output +proc start_rev_list {view} { + global startmsecs commitidx viewcomplete curview + global commfd leftover tclencoding + global viewargs viewargscmd viewfiles vfilelimit + global showlocalchanges commitinterest mainheadid + global viewactive loginstance viewinstances vmergeonly + global pending_select mainheadid + global vcanopt vflags vrevs vorigargs + + set startmsecs [clock clicks -milliseconds] + set commitidx($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 "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 --parents \ + --boundary $args "--" $files] r] + } err]} { + error_popup "[mc "Error executing git log:"] $err" + return 0 + } + set i [incr loginstance] + set viewinstances($view) [list $i] + set commfd($i) $fd + set leftover($i) {} + if {$showlocalchanges} { + lappend commitinterest($mainheadid) {dodiffindex} + } + fconfigure $fd -blocking 0 -translation lf -eofchar {} + if {$tclencoding != {}} { + fconfigure $fd -encoding $tclencoding + } + filerun $fd [list getcommitlines $fd $i $view 0] + nowbusy $view [mc "Reading"] + if {$view == $curview} { + set pending_select $mainheadid + } + set viewcomplete($view) 0 + set viewactive($view) 1 + return 1 +} + +proc stop_rev_list {view} { + global commfd viewinstances leftover + + foreach inst $viewinstances($view) { + set fd $commfd($inst) + catch { + set pid [pid $fd] + exec kill $pid + } + catch {close $fd} + nukefile $fd + unset commfd($inst) + unset leftover($inst) + } + set viewinstances($view) {} +} + +proc getcommits {} { + global canv curview need_redisplay viewactive + + initlayout + if {[start_rev_list $curview]} { + 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 loginstance tclencoding mainheadid + global startmsecs commfd showneartags showlocalchanges leftover + global mainheadid pending_select + global isworktree + global varcid vposids vnegids vflags vrevs + + set isworktree [expr {[exec git rev-parse --is-inside-work-tree] == "true"}] + set oldmainid $mainheadid + rereadrefs + if {$showlocalchanges} { + if {$mainheadid ne $oldmainid} { + dohidelocalchanges + } + if {[commitinview $mainheadid $curview]} { + dodiffindex + } + } + set view $curview + if {$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 --parents \ + --boundary $args "--" $vfilelimit($view)] r] + } err]} { + error_popup "Error executing git log: $err" + return + } + if {$viewactive($view) == 0} { + set startmsecs [clock clicks -milliseconds] + } + set i [incr loginstance] + lappend viewinstances($view) $i + set commfd($i) $fd + set leftover($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 + set pending_select $mainheadid + nowbusy $view "Reading" + if {$showneartags} { + getallcommits + } +} + +proc reloadcommits {} { + global curview viewcomplete selectedline currentid thickerline + global showneartags treediffs commitinterest cached_commitrow + global targetid + + if {!$viewcomplete($curview)} { + stop_rev_list $curview + } + resetvarcs $curview + set selectedline {} + catch {unset currentid} + catch {unset thickerline} + catch {unset treediffs} + readrefs + changedrefs + if {$showneartags} { + getallcommits + } + clear_display + catch {unset commitinterest} + catch {unset cached_commitrow} + catch {unset targetid} + setcanvscroll + getcommits + 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 + + foreach vid [array names varcid $view,*] { + unset varcid($vid) + unset children($vid) + unset parents($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) + } + catch {unset 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 $commitinfo($id) 4] + 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 + global vupptr vdownptr vleftptr vbackptr varcix varcrow vlastins + + set oa $varcid($v,$p) + 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 "[lindex $varctok($v) $oa]%[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 $na + } +} + +proc renumbervarc {a v} { + global parents children varctok varcstart varccommits + global vupptr vdownptr vleftptr vbackptr vlastins varcid vtokmod vdatemode + + set t1 [clock clicks -milliseconds] + set todo {} + set isrelated($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 + 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 + + 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 + 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)] + catch {unset 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,$id) 1 + set numcommits [incr commitidx($v)] + # note we deliberately don't update varcstart($v) even if $i == 0 + set varccommits($v,$a) [linsert $varccommits($v,$a) $i $id] + modify_arc $v $a $i + if {[info exists targetid]} { + if {![comes_before $targetid $p]} { + incr targetrow + } + } + setcanvscroll + drawvisible +} + +proc removefakerow {id} { + global varcid varccommits parents children commitidx + global varctok vtokmod cmitlisted currentid selectedline + global targetid curview numcommits + + set v $curview + if {[llength $parents($v,$id)] != 1} { + puts "oops: removefakerow [shortids $id] has [llength $parents($v,$id)] parents" + return + } + set p [lindex $parents($v,$id) 0] + set a $varcid($v,$id) + set i [lsearch -exact $varccommits($v,$a) $id] + if {$i < 0} { + puts "oops: removefakerow can't find [shortids $id] on arc $a" + return + } + unset varcid($v,$id) + set varccommits($v,$a) [lreplace $varccommits($v,$a) $i $i] + unset parents($v,$id) + unset children($v,$id) + unset cmitlisted($v,$id) + set numcommits [incr commitidx($v) -1] + set j [lsearch -exact $children($v,$p) $id] + if {$j >= 0} { + set children($v,$p) [lreplace $children($v,$p) $j $j] + } + modify_arc $v $a $i + if {[info exist currentid] && $id eq $currentid} { + unset currentid + set selectedline {} + } + if {[info exists targetid] && $targetid eq $id} { + set targetid $p + } + setcanvscroll + drawvisible +} + +proc first_real_child {vp} { + global children nullid nullid2 + + foreach id $children($vp) { + if {$id ne $nullid && $id ne $nullid2} { + return $id + } + } + return {} +} + +proc last_real_child {vp} { + global children nullid nullid2 + + set kids $children($vp) + for {set i [llength $kids]} {[incr i -1] >= 0} {} { + set id [lindex $kids $i] + if {$id ne $nullid && $id ne $nullid2} { + return $id + } + } + return {} +} + +proc vtokcmp {v a b} { + global varctok varcid + + return [string compare [lindex $varctok($v) $varcid($v,$a)] \ + [lindex $varctok($v) $varcid($v,$b)]] +} + +# This assumes that if lim is not given, the caller has checked that +# arc a's token is less than $vtokmod($v) +proc modify_arc {v a {lim {}}} { + global varctok vtokmod varcmod varcrow vupptr curview vrowmod varccommits + + if {$lim ne {}} { + set c [string compare [lindex $varctok($v) $a] $vtokmod($v)] + if {$c > 0} return + if {$c == 0} { + set r [lindex $varcrow($v) $a] + if {$r ne {} && $vrowmod($v) <= $r + $lim} return + } + } + set vtokmod($v) [lindex $varctok($v) $a] + set varcmod($v) $a + if {$v == $curview} { + while {$a != 0 && [lindex $varcrow($v) $a] eq {}} { + set a [lindex $vupptr($v) $a] + set lim {} + } + set r 0 + if {$a != 0} { + if {$lim eq {}} { + set lim [llength $varccommits($v,$a)] + } + set r [expr {[lindex $varcrow($v) $a] + $lim}] + } + set vrowmod($v) $r + undolayout $r + } +} + +proc update_arcrows {v} { + global vtokmod varcmod vrowmod varcrow commitidx currentid selectedline + global varcid vrownum varcorder varcix varccommits + global vupptr vdownptr vleftptr varctok + global displayorder parentlist curview cached_commitrow + + if {$vrowmod($v) == $commitidx($v)} return + if {$v == $curview} { + if {[llength $displayorder] > $vrowmod($v)} { + set displayorder [lrange $displayorder 0 [expr {$vrowmod($v) - 1}]] + set parentlist [lrange $parentlist 0 [expr {$vrowmod($v) - 1}]] + } + catch {unset cached_commitrow} + } + set narctot [expr {[llength $varctok($v)] - 1}] + set a $varcmod($v) + while {$a != 0 && [lindex $varcix($v) $a] eq {}} { + # go up the tree until we find something that has a row number, + # or we get to a seed + set a [lindex $vupptr($v) $a] + } + if {$a == 0} { + set a [lindex $vdownptr($v) 0] + if {$a == 0} return + set vrownum($v) {0} + set varcorder($v) [list $a] + lset varcix($v) $a 0 + lset varcrow($v) $a 0 + set arcn 0 + set row 0 + } else { + set arcn [lindex $varcix($v) $a] + if {[llength $vrownum($v)] > $arcn + 1} { + set vrownum($v) [lrange $vrownum($v) 0 $arcn] + set varcorder($v) [lrange $varcorder($v) 0 $arcn] + } + set row [lindex $varcrow($v) $a] + } + while {1} { + set p $a + incr row [llength $varccommits($v,$a)] + # go down if possible + set b [lindex $vdownptr($v) $a] + if {$b == 0} { + # if not, go left, or go up until we can go left + while {$a != 0} { + set b [lindex $vleftptr($v) $a] + if {$b != 0} break + set a [lindex $vupptr($v) $a] + } + if {$a == 0} break + } + set a $b + incr arcn + lappend vrownum($v) $row + lappend varcorder($v) $a + lset varcix($v) $a $arcn + lset varcrow($v) $a $row + } + set vtokmod($v) [lindex $varctok($v) $p] + set varcmod($v) $p + set vrowmod($v) $row + if {[info exists currentid]} { + set selectedline [rowofcommit $currentid] + } +} + +# Test whether view $v contains commit $id +proc commitinview {id v} { + global varcid + + return [info exists varcid($v,$id)] +} + +# Return the row number for commit $id in the current view +proc rowofcommit {id} { + global varcid varccommits varcrow curview cached_commitrow + global varctok vtokmod + + set v $curview + if {![info exists varcid($v,$id)]} { + puts "oops rowofcommit no arc for [shortids $id]" + return {} + } + set a $varcid($v,$id) + if {[string compare [lindex $varctok($v) $a] $vtokmod($v)] >= 0} { + update_arcrows $v + } + if {[info exists cached_commitrow($id)]} { + return $cached_commitrow($id) + } + set i [lsearch -exact $varccommits($v,$a) $id] + if {$i < 0} { + puts "oops didn't find commit [shortids $id] in arc $a" + return {} + } + incr i [lindex $varcrow($v) $a] + set cached_commitrow($id) $i + return $i +} + +# Returns 1 if a is on an earlier row than b, otherwise 0 +proc comes_before {a b} { + global varcid varctok curview + + set v $curview + if {$a eq $b || ![info exists varcid($v,$a)] || \ + ![info exists varcid($v,$b)]} { + return 0 + } + if {$varcid($v,$a) != $varcid($v,$b)} { + return [expr {[string compare [lindex $varctok($v) $varcid($v,$a)] \ + [lindex $varctok($v) $varcid($v,$b)]] < 0}] + } + return [expr {[rowofcommit $a] < [rowofcommit $b]}] +} + +proc bsearch {l elt} { + if {[llength $l] == 0 || $elt <= [lindex $l 0]} { + return 0 + } + set lo 0 + set hi [llength $l] + while {$hi - $lo > 1} { + set mid [expr {int(($lo + $hi) / 2)}] + set t [lindex $l $mid] + if {$elt < $t} { + set hi $mid + } elseif {$elt > $t} { + set lo $mid + } else { + return $mid + } + } + return $lo +} + +# Make sure rows $start..$end-1 are valid in displayorder and parentlist +proc make_disporder {start end} { + global vrownum curview commitidx displayorder parentlist + global varccommits varcorder parents vrowmod varcrow + global d_valid_start d_valid_end + + if {$end > $vrowmod($curview)} { + update_arcrows $curview + } + set ai [bsearch $vrownum($curview) $start] + set start [lindex $vrownum($curview) $ai] + set narc [llength $vrownum($curview)] + for {set r $start} {$ai < $narc && $r < $end} {incr ai} { + set a [lindex $varcorder($curview) $ai] + set l [llength $displayorder] + set al [llength $varccommits($curview,$a)] + if {$l < $r + $al} { + if {$l < $r} { + set pad [ntimes [expr {$r - $l}] {}] + set displayorder [concat $displayorder $pad] + set parentlist [concat $parentlist $pad] + } elseif {$l > $r} { + set displayorder [lrange $displayorder 0 [expr {$r - 1}]] + set parentlist [lrange $parentlist 0 [expr {$r - 1}]] + } + foreach id $varccommits($curview,$a) { + lappend displayorder $id + lappend parentlist $parents($curview,$id) + } + } elseif {[lindex $displayorder [expr {$r + $al - 1}]] eq {}} { + set i $r + foreach id $varccommits($curview,$a) { + lset displayorder $i $id + lset parentlist $i $parents($curview,$id) + incr i + } + } + incr r $al + } +} + +proc commitonrow {row} { + global displayorder + + set id [lindex $displayorder $row] + if {$id eq {}} { + make_disporder $row [expr {$row + 1}] + set id [lindex $displayorder $row] + } + return $id +} + +proc closevarcs {v} { + global varctok varccommits varcid parents children + global cmitlisted commitidx com |