#!/bin/sh
# Print a version string.
-scriptversion=2012-03-18.17; # UTC
+scriptversion=2019-10-13.15; # UTC
-# Copyright (C) 2007-2012 Free Software Foundation, Inc.
+# Copyright (C) 2007-2020 Free Software Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
-# This script is derived from GIT-VERSION-GEN from GIT: http://git.or.cz/.
+# This script is derived from GIT-VERSION-GEN from GIT: https://git-scm.com/.
# It may be run two ways:
# - from a git repository in which the "git describe" command below
# produces useful output (thus requiring at least one signed tag)
me=$0
+year=`expr "$scriptversion" : '\([^-]*\)'`
version="git-version-gen $scriptversion
-Copyright 2011 Free Software Foundation, Inc.
+Copyright $year Free Software Foundation, Inc.
There is NO warranty. You may redistribute this software
under the terms of the GNU General Public License.
For more information about these matters, see the files named COPYING."
Options:
- --prefix prefix of git tags (default 'v')
+ --prefix PREFIX prefix of git tags (default 'v')
+ --fallback VERSION
+ fallback version to use if \"git --version\" fails
--help display this help and exit
--version output version information and exit
Running without arguments will suffice in most cases."
prefix=v
+fallback=
while test $# -gt 0; do
case $1 in
--help) echo "$usage"; exit 0;;
--version) echo "$version"; exit 0;;
- --prefix) shift; prefix="$1";;
+ --prefix) shift; prefix=${1?};;
+ --fallback) shift; fallback=${1?};;
-*)
echo "$0: Unknown option '$1'." >&2
echo "$0: Try '--help' for more information." >&2
exit 1;;
*)
- if test -z "$tarball_version_file"; then
+ if test "x$tarball_version_file" = x; then
tarball_version_file="$1"
- elif test -z "$tag_sed_script"; then
+ elif test "x$tag_sed_script" = x; then
tag_sed_script="$1"
else
echo "$0: extra non-option argument '$1'." >&2
shift
done
-if test -z "$tarball_version_file"; then
+if test "x$tarball_version_file" = x; then
echo "$usage"
exit 1
fi
v=`cat $tarball_version_file` || v=
case $v in
*$nl*) v= ;; # reject multi-line output
- [0-9]*) ;;
- *) v= ;;
esac
- test -z "$v" \
- && echo "$0: WARNING: $tarball_version_file is missing or damaged" 1>&2
+ test "x$v" = x \
+ && echo "$0: WARNING: $tarball_version_file is damaged" 1>&2
fi
-if test -n "$v"
+if test "x$v" != x
then
: # use $v
# Otherwise, if there is at least one git commit involving the working
# tag or the previous older version that did not?
# Newer: v6.10-77-g0f8faeb
# Older: v6.10-g0f8faeb
- case $v in
- *-*-*) : git describe is okay three part flavor ;;
- *-*)
+ vprefix=`expr "X$v" : 'X\(.*\)-g[^-]*$'` || vprefix=$v
+ case $vprefix in
+ *-*) : git describe is probably okay three part flavor ;;
+ *)
: git describe is older two part flavor
# Recreate the number of commits and rewrite such that the
# result is the same as if we were using the newer version
;;
esac
- # Change the first '-' to a '.', so version-comparing tools work properly.
- # Remove the "g" in git describe's output string, to save a byte.
- v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`;
+ # Change the penultimate "-" to ".", for version-comparing tools.
+ # Remove the "g" to save a byte.
+ v=`echo "$v" | sed 's/-\([^-]*\)-g\([^-]*\)$/.\1-\2/'`;
v_from_git=1
-else
+elif test "x$fallback" = x || git --version >/dev/null 2>&1; then
v=UNKNOWN
+else
+ v=$fallback
fi
v=`echo "$v" |sed "s/^$prefix//"`
# Test whether to append the "-dirty" suffix only if the version
# string we're using came from git. I.e., skip the test if it's "UNKNOWN"
# or if it came from .tarball-version.
-if test -n "$v_from_git"; then
- # Don't declare a version "dirty" merely because a time stamp has changed.
+if test "x$v_from_git" != x; then
+ # Don't declare a version "dirty" merely because a timestamp has changed.
git update-index --refresh > /dev/null 2>&1
dirty=`exec 2>/dev/null;git diff-index --name-only HEAD` || dirty=
fi
# Omit the trailing newline, so that m4_esyscmd can use the result directly.
-echo "$v" | tr -d "$nl"
+printf %s "$v"
# Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
+# eval: (add-hook 'before-save-hook 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End: