#!/bin/sh
# Print a version string.
-scriptversion=2011-11-13.10; # UTC
+scriptversion=2012-12-31.23; # UTC
-# Copyright (C) 2007-2011 Free Software Foundation, Inc.
+# Copyright (C) 2007-2013 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
Options:
+ --prefix prefix of git tags (default 'v')
+ --fallback 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";;
+ --fallback) shift; fallback="$1";;
-*)
- echo "$0: Unknown option \`$1'." >&2
- echo "$0: Try \`--help' for more information." >&2
+ 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
+ echo "$0: extra non-option argument '$1'." >&2
exit 1
fi;;
esac
shift
done
-if test -z "$tarball_version_file"; then
+if test "x$tarball_version_file" = x; then
echo "$usage"
exit 1
fi
[0-9]*) ;;
*) v= ;;
esac
- test -z "$v" \
+ test "x$v" = x \
&& echo "$0: WARNING: $tarball_version_file is missing or damaged" 1>&2
fi
-if test -n "$v"
+if test "x$v" != x
then
: # use $v
# Otherwise, if there is at least one git commit involving the working
# directory, and "git describe" output looks sensible, use that to
# derive a version string.
elif test "`git log -1 --pretty=format:x . 2>&1`" = x \
- && v=`git describe --abbrev=4 --match='v*' HEAD 2>/dev/null \
+ && v=`git describe --abbrev=4 --match="$prefix*" HEAD 2>/dev/null \
|| git describe --abbrev=4 HEAD 2>/dev/null` \
&& v=`printf '%s\n' "$v" | sed "$tag_sed_script"` \
&& case $v in
- v[0-9]*) ;;
+ $prefix[0-9]*) ;;
*) (exit 1) ;;
esac
then
# Remove the "g" in git describe's output string, to save a byte.
v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`;
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 "$v" |sed 's/^v//'`
+v=`echo "$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
+if test "x$v_from_git" != x; then
# Don't declare a version "dirty" merely because a time stamp has changed.
git update-index --refresh > /dev/null 2>&1