2 # Print a version string.
3 scriptversion=2009-05-11.16
5 # Copyright (C) 2007-2008 Free Software Foundation
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)
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.
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
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".
29 # In order to use intra-version strings in your project, you will need two
30 # separate generated version string files:
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.
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.
49 # It is probably wise to add these two files to .gitignore, so that you
50 # don't accidentally commit either generated file.
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).
57 # AC_INIT([GNU project],
58 # m4_esyscmd([build-aux/git-version-gen .tarball-version]),
59 # [bug-project@example])
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.
65 # BUILT_SOURCES = $(top_srcdir)/.version
66 # $(top_srcdir)/.version:
67 # echo $(VERSION) > $@-t && mv $@-t $@
69 # echo $(VERSION) > $(distdir)/.tarball-version
73 *) echo 1>&2 "Usage: $0 \$srcdir/.tarball-version"; exit 1;;
76 tarball_version_file=$1
80 # First see if there is a tarball-only version file.
81 # then try "git describe", then default.
82 if test -f $tarball_version_file
84 v=`cat $tarball_version_file` || exit 1
86 *$nl*) v= ;; # reject multi-line output
91 && echo "$0: WARNING: $tarball_version_file seems to be damaged" 1>&2
98 && v=`git describe --abbrev=4 --match='${GNOME_TAG_PATTERN}_*' HEAD 2>/dev/null \
99 || git describe --abbrev=4 HEAD 2>/dev/null` \
101 ${GNOME_TAG_PATTERN}_[0-9]*) ;;
105 # Is this a new git that lists number of commits since the last
106 # tag or the previous older version that did not?
107 # Newer: v6.10-77-g0f8faeb
108 # Older: v6.10-g0f8faeb
110 *-*-*) : git describe is okay three part flavor ;;
112 : git describe is older two part flavor
113 # Recreate the number of commits and rewrite such that the
114 # result is the same as if we were using the newer version
116 vtag=`echo "$v" | sed 's/-.*//'`
117 numcommits=`git rev-list "$vtag"..HEAD | wc -l`
118 v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`;
122 # Change the first '-' to a '.', so version-comparing tools work properly.
123 # Remove the "g" in git describe's output string, to save a byte.
124 v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`;
129 #v=`echo "$v" |sed 's/^v//'`
131 v=`echo "$v" | sed "s/${GNOME_TAG_PATTERN}_//" | tr _ .`
133 # Don't declare a version "dirty" merely because a time stamp has changed.
134 git status > /dev/null 2>&1
136 dirty=`sh -c 'git diff-index --name-only HEAD' 2>/dev/null` || dirty=
139 *) # Append the suffix only if there isn't one already.
146 # Omit the trailing newline, so that m4_esyscmd can use the result directly.
147 echo "$v" | tr -d '\012'
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: "$"