[PATCH 1/2] gitk: Add a basic support of SHA256 repositories into Gitk
- From
Takashi Iwai <tiwai@suse.de>
- Date
- Mar 20, 2025, 15:41 UTC
- Message-ID
- <20250320154136.23262-2-tiwai@suse.de>
- In-Reply-To
- <20250320154136.23262-1-tiwai@suse.de>
From: Rostislav Krasny <rosti.bsd@gmail.com>
This PR makes Gitk working on both SHA256 and SHA1 repositories without errors/crashes. I made it by changing and testing the gitk script of Git for Windows [https://gitforwindows.org/] version 2.32.0.windows.1 that is a little bit different than the mainstream 2.32.0 version.
Still not fixed functionality: [1] There is the "Auto-select SHA1 (length)" configuration preference that affects "Copy commit reference" on both SHA1 and SHA256 repositories.
A new "Auto-select SHA256 (length)" configuration preference should be added and used on SHA256 repositories instead of the old one. Since I'm not familiar with Tcl/Tk and this issue isn't critical I didn't implement it.
[ Changes from the original patch:
* Discard the changes for generic words (e.g. "Commit ID"), so that
translations can be still applied after this patch
* Simplify the regexp check in gotocommit as suggested in the
previous review
-- tiwai ]Signed-off-by: Rostislav Krasny <rosti.bsd@gmail.com> Link: https://patchwork.kernel.org/project/git/patch/pull.979.git.1623687519832.gitgitgadget@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de> --- gitk-git/gitk | 59 +++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 43 insertions(+), 16 deletions(-)
diff --git a/gitk-git/gitk b/gitk-git/gitk index bc9efa18566f..1e85cfef2ee3 100755 --- a/gitk-git/gitk +++ b/gitk-git/gitk @@ -425,6 +425,7 @@ proc parseviewargs {n arglist} { proc parseviewrevs {view revs} { global vposids vnegids + global hashlength if {$revs eq {}} { set revs HEAD @@ -438,7 +439,7 @@ proc parseviewrevs {view revs} { set badrev {} for {set l 0} {$l < [llength $errlines]} {incr l} { set line [lindex $errlines $l] - if {!([string length $line] == 40 && [string is xdigit $line])} { + if {!([string length $line] == $hashlength && [string is xdigit $line])} { if {[string match "fatal:*" $line]} { if {[string match "fatal: ambiguous argument*" $line] && $badrev ne {}} { @@ -655,6 +656,7 @@ proc updatecommits {} { global hasworktree global varcid vposids vnegids vflags vrevs global show_notes + global hashlength set hasworktree [hasworktree] rereadrefs @@ -688,7 +690,7 @@ proc updatecommits {} { # take out positive refs that we asked for before or # that we have already seen foreach rev $revs { - if {[string length $rev] == 40} { + if {[string length $rev] == $hashlength} { if {[lsearch -exact $oldpos $rev] < 0 && ![info exists varcid($view,$rev)]} { lappend newrevs $rev @@ -1573,6 +1575,7 @@ proc getcommitlines {fd inst view updating} { global parents children curview hlview global idpending ordertok global varccommits varcid varctok vtokmod vfilelimit vshortids + global hashlength set stuff [read $fd 500000] # git log doesn't terminate the last commit with a null... @@ -1655,7 +1658,7 @@ proc getcommitlines {fd inst view updating} { } set ok 1 foreach id $ids { - if {[string length $id] != 40} { + if {[string length $id] != $hashlength} { set ok 0 break } @@ -1935,6 +1938,7 @@ proc readrefs {} { global selecthead selectheadid global hideremotes global tclencoding + global hashlength foreach v {tagids idtags headids idheads otherrefids idotherrefs} { unset -nocomplain $v @@ -1944,9 +1948,9 @@ proc readrefs {} { fconfigure $refd -encoding $tclencoding } while {[gets $refd line] >= 0} { - if {[string index $line 40] ne " "} continue - set id [string range $line 0 39] - set ref [string range $line 41 end] + if {[string index $line $hashlength] ne " "} continue + set id [string range $line 0 [expr {$hashlength - 1}]] + set ref [string range $line [expr {$hashlength + 1}] end] if {![string match "refs/*" $ref]} continue set name [string range $ref 5 end] if {[string match "remotes/*" $name]} { @@ -2241,6 +2245,7 @@ proc makewindow {} { global have_tk85 have_tk86 use_ttk NS global git_version global worddiff + global hashlength # The "mc" arguments here are purely so that xgettext # sees the following string as needing to be translated @@ -2366,7 +2371,7 @@ proc makewindow {} { -command gotocommit -width 8 $sha1but conf -disabledforeground [$sha1but cget -foreground] pack .tf.bar.sha1label -side left - ${NS}::entry $sha1entry -width 40 -font textfont -textvariable sha1string + ${NS}::entry $sha1entry -width $hashlength -font textfont -textvariable sha1string trace add variable sha1string write sha1change pack $sha1entry -side left -pady 2 @@ -4093,6 +4098,7 @@ proc stopblaming {} { proc read_line_source {fd inst} { global blamestuff curview commfd blameinst nullid nullid2 + global hashlength while {[gets $fd line] >= 0} { lappend blamestuff($inst) $line @@ -4113,7 +4119,7 @@ proc read_line_source {fd inst} { set line [split [lindex $blamestuff($inst) 0] " "] set id [lindex $line 0] set lnum [lindex $line 1] - if {[string length $id] == 40 && [string is xdigit $id] && + if {[string length $id] == $hashlength && [string is xdigit $id] && [string is digit -strict $lnum]} { # look for "filename" line foreach l $blamestuff($inst) { @@ -5436,13 +5442,14 @@ proc get_viewmainhead {view} { # git rev-list should give us just 1 line to use as viewmainheadid($view) proc getviewhead {fd inst view} { global viewmainheadid commfd curview viewinstances showlocalchanges + global hashlength set id {} if {[gets $fd line] < 0} { if {![eof $fd]} { return 1 } - } elseif {[string length $line] == 40 && [string is xdigit $line]} { + } elseif {[string length $line] == $hashlength && [string is xdigit $line]} { set id $line } set viewmainheadid($view) $id @@ -7206,10 +7213,11 @@ proc commit_descriptor {p} { # Also look for URLs of the form "http[s]://..." and make them web links. proc appendwithlinks {text tags} { global ctext linknum curview + global hashlength set start [$ctext index "end - 1c"] $ctext insert end $text $tags - set links [regexp -indices -all -inline {(?:\m|-g)[0-9a-f]{6,40}\M} $text] + set links [regexp -indices -all -inline [string map "@@ $hashlength" {(?:\m|-g)[0-9a-f]{6,@@}\M}] $text] foreach l $links { set s [lindex $l 0] set e [lindex $l 1] @@ -8888,13 +8896,16 @@ proc incrfont {inc} { proc clearsha1 {} { global sha1entry sha1string - if {[string length $sha1string] == 40} { + global hashlength + + if {[string length $sha1string] == $hashlength} { $sha1entry delete 0 end } } proc sha1change {n1 n2 op} { global sha1string currentid sha1but + if {$sha1string == {} || ([info exists currentid] && $sha1string == $currentid)} { set state disabled @@ -8911,6 +8922,7 @@ proc sha1change {n1 n2 op} { proc gotocommit {} { global sha1string tagids headids curview varcid + global hashlength if {$sha1string == {} || ([info exists currentid] && $sha1string == $currentid)} return @@ -8920,11 +8932,11 @@ proc gotocommit {} { set id $headids($sha1string) } else { set id [string tolower $sha1string] - if {[regexp {^[0-9a-f]{4,39}$} $id]} { + if {[regexp {^[0-9a-f]{4,63}$} $id]} { set matches [longid $id] if {$matches ne {}} { if {[llength $matches] > 1} { - error_popup [mc "Short commit ID %s is ambiguous" $id] + error_popup [mc "Short commit id %s is ambiguous" $id] return } set id [lindex $matches 0] @@ -9618,10 +9630,11 @@ proc mktaggo {} { proc copyreference {} { global rowmenuid autosellen + global hashlength set format "%h (\"%s\", %ad)" set cmd [list git show -s --pretty=format:$format --date=short] - if {$autosellen < 40} { + if {$autosellen < $hashlength} { lappend cmd --abbrev=$autosellen } set reference [eval exec $cmd $rowmenuid] @@ -9632,6 +9645,7 @@ proc copyreference {} { proc writecommit {} { global rowmenuid wrcomtop commitinfo wrcomcmd NS + global hashlength set top .writecommit set wrcomtop $top @@ -9641,7 +9655,7 @@ proc writecommit {} { ${NS}::label $top.title -text [mc "Write commit to file"] grid $top.title - -pady 10 ${NS}::label $top.id -text [mc "ID:"] - ${NS}::entry $top.sha1 -width 40 + ${NS}::entry $top.sha1 -width $hashlength $top.sha1 insert 0 $rowmenuid $top.sha1 conf -state readonly grid $top.id $top.sha1 -sticky w @@ -9721,6 +9735,7 @@ proc mvbranch {} { proc branchdia {top valvar uivar} { global NS commitinfo + global hashlength upvar $valvar val $uivar ui catch {destroy $top} @@ -9729,7 +9744,7 @@ proc branchdia {top valvar uivar} { ${NS}::label $top.title -text $ui(title) grid $top.title - -pady 10 ${NS}::label $top.id -text [mc "ID:"] - ${NS}::entry $top.sha1 -width 40 + ${NS}::entry $top.sha1 -width $hashlength $top.sha1 insert 0 $val(id) $top.sha1 conf -state readonly grid $top.id $top.sha1 -sticky w @@ -12524,6 +12539,18 @@ if {$tclencoding == {}} { puts stderr "Warning: encoding $gitencoding is not supported by Tcl/Tk" } +set objformat [exec git rev-parse --show-object-format] +if {$objformat eq "sha1"} { + set hashlength 40 +} elseif {$objformat eq "sha256"} { + set hashlength 64 +} else { + error_popup "[mc "Not supported hash algorithm:"] {$objformat}" + exit 1 +} +set hashalgorithm [string toupper $objformat] +unset objformat + set gui_encoding [encoding system] catch { set enc [exec git config --get gui.encoding]
-- 2.49.0