a3051133c0* build-aux/git-version-gen: New script. * configure.ac (AC_INIT): Use it. (AC_REQUIRE_AUX_FILE): Distribute it. * Makefile.am (.version): New target. (BUILT_SOURCES, EXTRA_DIST): Add it. (dist-hook): Generate ".tarball-version". * .gitignore: Update.
226 lines
7.8 KiB
Bash
Executable file
226 lines
7.8 KiB
Bash
Executable file
#!/bin/sh
|
|
# Print a version string.
|
|
scriptversion=2016-05-08.18; # UTC
|
|
|
|
# Copyright (C) 2007-2016 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
|
|
# 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
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# 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/>.
|
|
|
|
# This script is derived from GIT-VERSION-GEN from GIT: http://git.or.cz/.
|
|
# 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)
|
|
# - from a non-git-repo directory containing a .tarball-version file, which
|
|
# presumes this script is invoked like "./git-version-gen .tarball-version".
|
|
|
|
# In order to use intra-version strings in your project, you will need two
|
|
# separate generated version string files:
|
|
#
|
|
# .tarball-version - present only in a distribution tarball, and not in
|
|
# a checked-out repository. Created with contents that were learned at
|
|
# the last time autoconf was run, and used by git-version-gen. Must not
|
|
# be present in either $(srcdir) or $(builddir) for git-version-gen to
|
|
# give accurate answers during normal development with a checked out tree,
|
|
# but must be present in a tarball when there is no version control system.
|
|
# Therefore, it cannot be used in any dependencies. GNUmakefile has
|
|
# hooks to force a reconfigure at distribution time to get the value
|
|
# correct, without penalizing normal development with extra reconfigures.
|
|
#
|
|
# .version - present in a checked-out repository and in a distribution
|
|
# tarball. Usable in dependencies, particularly for files that don't
|
|
# want to depend on config.h but do want to track version changes.
|
|
# Delete this file prior to any autoconf run where you want to rebuild
|
|
# files to pick up a version string change; and leave it stale to
|
|
# minimize rebuild time after unrelated changes to configure sources.
|
|
#
|
|
# As with any generated file in a VC'd directory, you should add
|
|
# /.version to .gitignore, so that you don't accidentally commit it.
|
|
# .tarball-version is never generated in a VC'd directory, so needn't
|
|
# be listed there.
|
|
#
|
|
# Use the following line in your configure.ac, so that $(VERSION) will
|
|
# automatically be up-to-date each time configure is run (and note that
|
|
# since configure.ac no longer includes a version string, Makefile rules
|
|
# should not depend on configure.ac for version updates).
|
|
#
|
|
# AC_INIT([GNU project],
|
|
# m4_esyscmd([build-aux/git-version-gen .tarball-version]),
|
|
# [bug-project@example])
|
|
#
|
|
# Then use the following lines in your Makefile.am, so that .version
|
|
# will be present for dependencies, and so that .version and
|
|
# .tarball-version will exist in distribution tarballs.
|
|
#
|
|
# EXTRA_DIST = $(top_srcdir)/.version
|
|
# BUILT_SOURCES = $(top_srcdir)/.version
|
|
# $(top_srcdir)/.version:
|
|
# echo $(VERSION) > $@-t && mv $@-t $@
|
|
# dist-hook:
|
|
# echo $(VERSION) > $(distdir)/.tarball-version
|
|
|
|
|
|
me=$0
|
|
|
|
version="git-version-gen $scriptversion
|
|
|
|
Copyright 2011 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."
|
|
|
|
usage="\
|
|
Usage: $me [OPTION]... \$srcdir/.tarball-version [TAG-NORMALIZATION-SED-SCRIPT]
|
|
Print a version string.
|
|
|
|
Options:
|
|
|
|
--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?};;
|
|
--fallback) shift; fallback=${1?};;
|
|
-*)
|
|
echo "$0: Unknown option '$1'." >&2
|
|
echo "$0: Try '--help' for more information." >&2
|
|
exit 1;;
|
|
*)
|
|
if test "x$tarball_version_file" = x; then
|
|
tarball_version_file="$1"
|
|
elif test "x$tag_sed_script" = x; then
|
|
tag_sed_script="$1"
|
|
else
|
|
echo "$0: extra non-option argument '$1'." >&2
|
|
exit 1
|
|
fi;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
if test "x$tarball_version_file" = x; then
|
|
echo "$usage"
|
|
exit 1
|
|
fi
|
|
|
|
tag_sed_script="${tag_sed_script:-s/x/x/}"
|
|
|
|
nl='
|
|
'
|
|
|
|
# Avoid meddling by environment variable of the same name.
|
|
v=
|
|
v_from_git=
|
|
|
|
# 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` || v=
|
|
case $v in
|
|
*$nl*) v= ;; # reject multi-line output
|
|
[0-9]*) ;;
|
|
*) v= ;;
|
|
esac
|
|
test "x$v" = x \
|
|
&& echo "$0: WARNING: $tarball_version_file is missing or damaged" 1>&2
|
|
fi
|
|
|
|
if test "x$v" != x
|
|
then
|
|
: # use $v
|
|
# Otherwise, if there is at least one git commit involving the working
|
|
# directory, and "git describe" output looks sensible, use that to
|
|
# derive a version string.
|
|
elif test "`git log -1 --pretty=format:x . 2>&1`" = x \
|
|
&& v=`git describe --abbrev=4 --match="$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
|
|
$prefix[0-9]*) ;;
|
|
*) (exit 1) ;;
|
|
esac
|
|
then
|
|
# Is this a new git that lists number of commits since the last
|
|
# tag or the previous older version that did not?
|
|
# Newer: v6.10-77-g0f8faeb
|
|
# Older: v6.10-g0f8faeb
|
|
case $v in
|
|
*-*-*) : git describe is okay three part flavor ;;
|
|
*-*)
|
|
: git describe is older two part flavor
|
|
# Recreate the number of commits and rewrite such that the
|
|
# result is the same as if we were using the newer version
|
|
# of git describe.
|
|
vtag=`echo "$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.
|
|
# 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
|
|
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 "x$v_from_git" != x; then
|
|
# Don't declare a version "dirty" merely because a time stamp has changed.
|
|
git update-index --refresh > /dev/null 2>&1
|
|
|
|
dirty=`exec 2>/dev/null;git diff-index --name-only HEAD` || dirty=
|
|
case "$dirty" in
|
|
'') ;;
|
|
*) # Append the suffix only if there isn't one already.
|
|
case $v in
|
|
*-dirty) ;;
|
|
*) v="$v-dirty" ;;
|
|
esac ;;
|
|
esac
|
|
fi
|
|
|
|
# Omit the trailing newline, so that m4_esyscmd can use the result directly.
|
|
printf %s "$v"
|
|
|
|
# Local variables:
|
|
# eval: (add-hook 'write-file-hooks 'time-stamp)
|
|
# time-stamp-start: "scriptversion="
|
|
# time-stamp-format: "%:y-%02m-%02d.%02H"
|
|
# time-stamp-time-zone: "UTC0"
|
|
# time-stamp-end: "; # UTC"
|
|
# End:
|