#!/bin/sh
# Print a version string.
-scriptversion=2008-04-03.22
+scriptversion=2011-01-03.20; # UTC
-# Copyright (C) 2007-2008 Free Software Foundation
+# Copyright (C) 2007-2011 Free Software Foundation, Inc.
#
-# This program is free software; you can redistribute it and/or modify
+# 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
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# 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, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This script is derived from GIT-VERSION-GEN from GIT: http://git.or.cz/.
# It may be run two ways:
# echo $(VERSION) > $(distdir)/.tarball-version
case $# in
- 1) ;;
- *) echo 1>&2 "Usage: $0 \$srcdir/.tarball-version"; exit 1;;
+ 1|2) ;;
+ *) echo 1>&2 "Usage: $0 \$srcdir/.tarball-version" \
+ '[TAG-NORMALIZATION-SED-SCRIPT]'
+ exit 1;;
esac
tarball_version_file=$1
+tag_sed_script="${2:-s/x/x/}"
nl='
'
+# Avoid meddling by environment variable of the same name.
+v=
+
# First see if there is a tarball-only version file.
# then try "git describe", then default.
if test -f $tarball_version_file
then
- v=`cat $tarball_version_file` || exit 1
+ v=`cat $tarball_version_file` || v=
case $v in
- *$nl*) v= ;; # reject multi-line output
- [0-9]*) ;;
- *) v= ;;
+ *$nl*) v= ;; # reject multi-line output
+ [0-9]*) ;;
+ *) v= ;;
esac
test -z "$v" \
- && echo "$0: WARNING: $tarball_version_file seems to be damaged" 1>&2
+ && echo "$0: WARNING: $tarball_version_file is missing or damaged" 1>&2
fi
if test -n "$v"
then
: # use $v
-elif test -d .git \
- && v=`git describe --abbrev=4 HEAD 2>/dev/null` \
+# Otherwise, if there is at least one git commit involving the working
+# directory, and "git describe" output looks sensible, use that to
+# derive a version string.
+elif test "`git log -1 --pretty=format:x . 2>&1`" = x \
+ && v=`git describe --abbrev=4 --match='v*' HEAD 2>/dev/null \
+ || git describe --abbrev=4 HEAD 2>/dev/null` \
+ && v=`printf '%s\n' "$v" | sed "$tag_sed_script"` \
&& case $v in
- v[0-9]*) ;;
- *) (exit 1) ;;
+ v[0-9]*) ;;
+ *) (exit 1) ;;
esac
then
# Is this a new git that lists number of commits since the last
# Newer: v6.10-77-g0f8faeb
# Older: v6.10-g0f8faeb
case $v in
- *-*-*) : git describe is okay three part flavor ;;
- *-*)
- : git describe is older two part flavor
- # Recreate the number of commits and rewrite such that the
- # result is the same as if we were using the newer version
- # of git describe.
- vtag=`echo "$v" | sed 's/-.*//'`
- numcommits=`git rev-list "$vtag"..HEAD | wc -l`
- v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`;
- ;;
+ *-*-*) : git describe is okay three part flavor ;;
+ *-*)
+ : git describe is older two part flavor
+ # Recreate the number of commits and rewrite such that the
+ # result is the same as if we were using the newer version
+ # of git describe.
+ vtag=`echo "$v" | sed 's/-.*//'`
+ commit_list=`git rev-list "$vtag"..HEAD 2>/dev/null` \
+ || { commit_list=failed;
+ echo "$0: WARNING: git rev-list failed" 1>&2; }
+ numcommits=`echo "$commit_list" | wc -l`
+ v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`;
+ test "$commit_list" = failed && v=UNKNOWN
+ ;;
esac
# Change the first '-' to a '.', so version-comparing tools work properly.
v=`echo "$v" |sed 's/^v//'`
# Don't declare a version "dirty" merely because a time stamp has changed.
-git status > /dev/null 2>&1
+git update-index --refresh > /dev/null 2>&1
-dirty=`sh -c 'git diff-index --name-only HEAD' 2>/dev/null` || dirty=
+dirty=`(git diff-index --name-only HEAD) 2>/dev/null` || dirty=
case "$dirty" in
'') ;;
*) # Append the suffix only if there isn't one already.
- case $v in
- *-dirty) ;;
- *) v="$v-dirty" ;;
- esac ;;
+ case $v in
+ *-dirty) ;;
+ *) v="$v-dirty" ;;
+ esac ;;
esac
# Omit the trailing newline, so that m4_esyscmd can use the result directly.
-echo "$v" | tr -d '\012'
+echo "$v" | tr -d "$nl"
# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-end: "$"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
# End:
projects / gnulib.git / blobdiff