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Update git-version-gen to latest version
Pick the latest git-version-gen version from http://git.savannah.gnu.org/cgit/gnulib.git/plain/build-aux/git-version-gen
This commit is contained in:
Christophe Fergeau
parent
2c6fbad8c5
commit
74300144f8
@ -1,8 +1,8 @@
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#!/bin/sh
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# Print a version string.
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scriptversion=2010-06-14.19; # UTC
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scriptversion=2012-12-31.23; # UTC
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# Copyright (C) 2007-2010 Free Software Foundation, Inc.
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# Copyright (C) 2007-2013 Free Software Foundation, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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@ -44,8 +44,10 @@ scriptversion=2010-06-14.19; # UTC
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# files to pick up a version string change; and leave it stale to
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# minimize rebuild time after unrelated changes to configure sources.
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#
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# It is probably wise to add these two files to .gitignore, so that you
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# don't accidentally commit either generated file.
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# As with any generated file in a VC'd directory, you should add
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# /.version to .gitignore, so that you don't accidentally commit it.
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# .tarball-version is never generated in a VC'd directory, so needn't
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# be listed there.
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#
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# Use the following line in your configure.ac, so that $(VERSION) will
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# automatically be up-to-date each time configure is run (and note that
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@ -57,54 +59,107 @@ scriptversion=2010-06-14.19; # UTC
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# [bug-project@example])
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#
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# Then use the following lines in your Makefile.am, so that .version
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# will be present for dependencies, and so that .tarball-version will
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# exist in distribution tarballs.
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# will be present for dependencies, and so that .version and
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# .tarball-version will exist in distribution tarballs.
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#
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# EXTRA_DIST = $(top_srcdir)/.version
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# BUILT_SOURCES = $(top_srcdir)/.version
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# $(top_srcdir)/.version:
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# echo $(VERSION) > $@-t && mv $@-t $@
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# dist-hook:
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# echo $(VERSION) > $(distdir)/.tarball-version
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case $# in
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1|2) ;;
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*) echo 1>&2 "Usage: $0 \$srcdir/.tarball-version" \
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'[TAG-NORMALIZATION-SED-SCRIPT]'
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exit 1;;
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esac
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tarball_version_file=$1
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tag_sed_script="${2:-s/x/x/}"
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me=$0
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version="git-version-gen $scriptversion
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Copyright 2011 Free Software Foundation, Inc.
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There is NO warranty. You may redistribute this software
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under the terms of the GNU General Public License.
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For more information about these matters, see the files named COPYING."
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usage="\
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Usage: $me [OPTION]... \$srcdir/.tarball-version [TAG-NORMALIZATION-SED-SCRIPT]
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Print a version string.
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Options:
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--prefix prefix of git tags (default 'v')
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--fallback fallback version to use if \"git --version\" fails
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--help display this help and exit
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--version output version information and exit
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Running without arguments will suffice in most cases."
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prefix=v
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fallback=
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while test $# -gt 0; do
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case $1 in
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--help) echo "$usage"; exit 0;;
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--version) echo "$version"; exit 0;;
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--prefix) shift; prefix="$1";;
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--fallback) shift; fallback="$1";;
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-*)
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echo "$0: Unknown option '$1'." >&2
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echo "$0: Try '--help' for more information." >&2
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exit 1;;
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*)
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if test "x$tarball_version_file" = x; then
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tarball_version_file="$1"
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elif test "x$tag_sed_script" = x; then
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tag_sed_script="$1"
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else
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echo "$0: extra non-option argument '$1'." >&2
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exit 1
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fi;;
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esac
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shift
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done
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if test "x$tarball_version_file" = x; then
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echo "$usage"
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exit 1
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fi
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tag_sed_script="${tag_sed_script:-s/x/x/}"
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nl='
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'
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# Avoid meddling by environment variable of the same name.
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v=
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v_from_git=
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# First see if there is a tarball-only version file.
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# then try "git describe", then default.
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if test -f $tarball_version_file
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then
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v=`cat $tarball_version_file` || exit 1
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v=`cat $tarball_version_file` || v=
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case $v in
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*$nl*) v= ;; # reject multi-line output
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[0-9]*) ;;
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*) v= ;;
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*$nl*) v= ;; # reject multi-line output
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[0-9]*) ;;
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*) v= ;;
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esac
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test -z "$v" \
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&& echo "$0: WARNING: $tarball_version_file seems to be damaged" 1>&2
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test "x$v" = x \
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&& echo "$0: WARNING: $tarball_version_file is missing or damaged" 1>&2
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fi
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if test -n "$v"
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if test "x$v" != x
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then
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: # use $v
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elif test -d .git \
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&& v=`git describe --abbrev=4 --match='v*' HEAD 2>/dev/null \
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|| git describe --abbrev=4 HEAD 2>/dev/null` \
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# Otherwise, if there is at least one git commit involving the working
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# directory, and "git describe" output looks sensible, use that to
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# derive a version string.
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elif test "`git log -1 --pretty=format:x . 2>&1`" = x \
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&& v=`git describe --abbrev=4 --match="$prefix*" HEAD 2>/dev/null \
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|| git describe --abbrev=4 HEAD 2>/dev/null` \
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&& v=`printf '%s\n' "$v" | sed "$tag_sed_script"` \
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&& case $v in
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v[0-9]*) ;;
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*) (exit 1) ;;
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$prefix[0-9]*) ;;
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*) (exit 1) ;;
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esac
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then
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# Is this a new git that lists number of commits since the last
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@ -112,39 +167,51 @@ then
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# Newer: v6.10-77-g0f8faeb
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# Older: v6.10-g0f8faeb
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case $v in
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*-*-*) : git describe is okay three part flavor ;;
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*-*)
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: git describe is older two part flavor
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# Recreate the number of commits and rewrite such that the
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# result is the same as if we were using the newer version
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# of git describe.
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vtag=`echo "$v" | sed 's/-.*//'`
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numcommits=`git rev-list "$vtag"..HEAD | wc -l`
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v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`;
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;;
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*-*-*) : git describe is okay three part flavor ;;
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*-*)
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: git describe is older two part flavor
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# Recreate the number of commits and rewrite such that the
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# result is the same as if we were using the newer version
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# of git describe.
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vtag=`echo "$v" | sed 's/-.*//'`
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commit_list=`git rev-list "$vtag"..HEAD 2>/dev/null` \
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|| { commit_list=failed;
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echo "$0: WARNING: git rev-list failed" 1>&2; }
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numcommits=`echo "$commit_list" | wc -l`
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v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`;
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test "$commit_list" = failed && v=UNKNOWN
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;;
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esac
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# Change the first '-' to a '.', so version-comparing tools work properly.
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# Remove the "g" in git describe's output string, to save a byte.
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v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`;
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else
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v_from_git=1
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elif test "x$fallback" = x || git --version >/dev/null 2>&1; then
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v=UNKNOWN
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else
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v=$fallback
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fi
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v=`echo "$v" |sed 's/^v//'`
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v=`echo "$v" |sed "s/^$prefix//"`
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# Don't declare a version "dirty" merely because a time stamp has changed.
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git update-index --refresh > /dev/null 2>&1
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# Test whether to append the "-dirty" suffix only if the version
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# string we're using came from git. I.e., skip the test if it's "UNKNOWN"
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# or if it came from .tarball-version.
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if test "x$v_from_git" != x; then
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# Don't declare a version "dirty" merely because a time stamp has changed.
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git update-index --refresh > /dev/null 2>&1
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dirty=`sh -c 'git diff-index --name-only HEAD' 2>/dev/null` || dirty=
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case "$dirty" in
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'') ;;
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*) # Append the suffix only if there isn't one already.
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case $v in
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*-dirty) ;;
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*) v="$v-dirty" ;;
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esac ;;
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esac
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dirty=`exec 2>/dev/null;git diff-index --name-only HEAD` || dirty=
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case "$dirty" in
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'') ;;
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*) # Append the suffix only if there isn't one already.
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case $v in
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*-dirty) ;;
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*) v="$v-dirty" ;;
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esac ;;
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esac
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fi
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# Omit the trailing newline, so that m4_esyscmd can use the result directly.
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echo "$v" | tr -d "$nl"
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