1#!/bin/sh 2# Print a version string. 3scriptversion=2009-05-04.22 4 5# Copyright (C) 2007-2008 Free Software Foundation 6# 7# This program is free software; you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation; either version 3, or (at your option) 10# any later version. 11# 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public License 18# along with this program; if not, write to the Free Software 19# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 20# 02110-1301, USA. 21 22# This script is derived from GIT-VERSION-GEN from GIT: http://git.or.cz/. 23# It may be run two ways: 24# - from a git repository in which the "git describe" command below 25# produces useful output (thus requiring at least one signed tag) 26# - from a non-git-repo directory containing a .tarball-version file, which 27# presumes this script is invoked like "./git-version-gen .tarball-version". 28 29# In order to use intra-version strings in your project, you will need two 30# separate generated version string files: 31# 32# .tarball-version - present only in a distribution tarball, and not in 33# a checked-out repository. Created with contents that were learned at 34# the last time autoconf was run, and used by git-version-gen. Must not 35# be present in either $(srcdir) or $(builddir) for git-version-gen to 36# give accurate answers during normal development with a checked out tree, 37# but must be present in a tarball when there is no version control system. 38# Therefore, it cannot be used in any dependencies. GNUmakefile has 39# hooks to force a reconfigure at distribution time to get the value 40# correct, without penalizing normal development with extra reconfigures. 41# 42# .version - present in a checked-out repository and in a distribution 43# tarball. Usable in dependencies, particularly for files that don't 44# want to depend on config.h but do want to track version changes. 45# Delete this file prior to any autoconf run where you want to rebuild 46# files to pick up a version string change; and leave it stale to 47# minimize rebuild time after unrelated changes to configure sources. 48# 49# It is probably wise to add these two files to .gitignore, so that you 50# don't accidentally commit either generated file. 51# 52# Use the following line in your configure.ac, so that $(VERSION) will 53# automatically be up-to-date each time configure is run (and note that 54# since configure.ac no longer includes a version string, Makefile rules 55# should not depend on configure.ac for version updates). 56# 57# AC_INIT([GNU project], 58# m4_esyscmd([build-aux/git-version-gen .tarball-version]), 59# [bug-project@example]) 60# 61# Then use the following lines in your Makefile.am, so that .version 62# will be present for dependencies, and so that .tarball-version will 63# exist in distribution tarballs. 64# 65# BUILT_SOURCES = $(top_srcdir)/.version 66# $(top_srcdir)/.version: 67# echo $(VERSION) > $@-t && mv $@-t $@ 68# dist-hook: 69# echo $(VERSION) > $(distdir)/.tarball-version 70 71case $# in 72 1) ;; 73 *) echo 1>&2 "Usage: $0 \$srcdir/.tarball-version"; exit 1;; 74esac 75 76tarball_version_file=$1 77nl=' 78' 79 80# First see if there is a tarball-only version file. 81# then try "git describe", then default. 82if test -f $tarball_version_file 83then 84 v=`cat $tarball_version_file` || exit 1 85 case $v in 86 *$nl*) v= ;; # reject multi-line output 87 [0-9]*) ;; 88 *) v= ;; 89 esac 90 test -z "$v" \ 91 && echo "$0: WARNING: $tarball_version_file seems to be damaged" 1>&2 92fi 93 94if test -n "$v" 95then 96 : # use $v 97elif test -d .git \ 98 && v=`git describe --abbrev=4 --match='${MATE_TAG_PATTERN}_*' HEAD 2>/dev/null \ 99 || git describe --abbrev=4 HEAD 2>/dev/null` \ 100 && case $v in 101 ${MATE_TAG_PATTERN}_[0-9]*) ;; 102 *) (exit 1) ;; 103 esac 104then 105 # Is this a new git that lists number of commits since the last 106 # tag or the previous older version that did not? 107 # Newer: v6.10-77-g0f8faeb 108 # Older: v6.10-g0f8faeb 109 case $v in 110 *-*-*) : git describe is okay three part flavor ;; 111 *-*) 112 : git describe is older two part flavor 113 # Recreate the number of commits and rewrite such that the 114 # result is the same as if we were using the newer version 115 # of git describe. 116 vtag=`echo "$v" | sed 's/-.*//'` 117 numcommits=`git rev-list "$vtag"..HEAD | wc -l` 118 v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`; 119 ;; 120 esac 121 122 # Change the first '-' to a '.', so version-comparing tools work properly. 123 # Remove the "g" in git describe's output string, to save a byte. 124 v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`; 125else 126 v=UNKNOWN 127fi 128 129#v=`echo "$v" |sed 's/^v//'` 130 131v=`echo "$v" | sed "s/${MATE_TAG_PATTERN}_//" | tr _ .` 132 133# Don't declare a version "dirty" merely because a time stamp has changed. 134git status > /dev/null 2>&1 135 136dirty=`sh -c 'git diff-index --name-only HEAD' 2>/dev/null` || dirty= 137case "$dirty" in 138 '') ;; 139 *) # Append the suffix only if there isn't one already. 140 case $v in 141 *-dirty) ;; 142 *) v="$v-dirty" ;; 143 esac ;; 144esac 145 146# Omit the trailing newline, so that m4_esyscmd can use the result directly. 147echo "$v" | tr -d '\012' 148 149# Local variables: 150# eval: (add-hook 'write-file-hooks 'time-stamp) 151# time-stamp-start: "scriptversion=" 152# time-stamp-format: "%:y-%02m-%02d.%02H" 153# time-stamp-end: "$" 154# End: 155