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git-gui: generic version trimming

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Rather than attempting to trim off all the non-version number suffixes
from the 'git version' result, let us scan along from the beginning until
we find a non-numeric part and stop there. Any such dot-version number will
be compatible with the Tcl package version comparison command which is the
aim of this code.

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
This commit is contained in:
Pat Thoyts 2010-10-07 22:28:45 +01:00
parent c0d2c38d78
commit 67112c484b
1 changed files with 12 additions and 5 deletions
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17
git-gui.sh
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@ -878,12 +878,19 @@ if {![regsub {^git version } $_git_version {} _git_version]} {
exit 1
}
proc get_trimmed_version {s} {
set r {}
foreach x [split $s -._] {
if {[string is integer -strict $x]} {
lappend r $x
} else {
break
}
}
return [join $r .]
}
set _real_git_version $_git_version
regsub -- {[\-\.]dirty$} $_git_version {} _git_version
regsub {\.[0-9]+\.g[0-9a-f]+$} $_git_version {} _git_version
regsub {\.[a-zA-Z]+\.?[0-9]+$} $_git_version {} _git_version
regsub {\.GIT$} $_git_version {} _git_version
regsub {\.[a-zA-Z]+\.?[0-9]+$} $_git_version {} _git_version
set _git_version [get_trimmed_version $_git_version]
if {![regexp {^[1-9]+(\.[0-9]+)+$} $_git_version]} {
catch {wm withdraw .}