| 1 | #!/bin/sh
|
|---|
| 2 | # Print a version string.
|
|---|
| 3 | scriptversion=2012-03-18.17; # UTC
|
|---|
| 4 |
|
|---|
| 5 | # Copyright (C) 2007-2012 Free Software Foundation, Inc.
|
|---|
| 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 of the License, or
|
|---|
| 10 | # (at your option) 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, see <http://www.gnu.org/licenses/>.
|
|---|
| 19 |
|
|---|
| 20 | # This script is derived from GIT-VERSION-GEN from GIT: http://git.or.cz/.
|
|---|
| 21 | # It may be run two ways:
|
|---|
| 22 | # - from a git repository in which the "git describe" command below
|
|---|
| 23 | # produces useful output (thus requiring at least one signed tag)
|
|---|
| 24 | # - from a non-git-repo directory containing a .tarball-version file, which
|
|---|
| 25 | # presumes this script is invoked like "./git-version-gen .tarball-version".
|
|---|
| 26 |
|
|---|
| 27 | # In order to use intra-version strings in your project, you will need two
|
|---|
| 28 | # separate generated version string files:
|
|---|
| 29 | #
|
|---|
| 30 | # .tarball-version - present only in a distribution tarball, and not in
|
|---|
| 31 | # a checked-out repository. Created with contents that were learned at
|
|---|
| 32 | # the last time autoconf was run, and used by git-version-gen. Must not
|
|---|
| 33 | # be present in either $(srcdir) or $(builddir) for git-version-gen to
|
|---|
| 34 | # give accurate answers during normal development with a checked out tree,
|
|---|
| 35 | # but must be present in a tarball when there is no version control system.
|
|---|
| 36 | # Therefore, it cannot be used in any dependencies. GNUmakefile has
|
|---|
| 37 | # hooks to force a reconfigure at distribution time to get the value
|
|---|
| 38 | # correct, without penalizing normal development with extra reconfigures.
|
|---|
| 39 | #
|
|---|
| 40 | # .version - present in a checked-out repository and in a distribution
|
|---|
| 41 | # tarball. Usable in dependencies, particularly for files that don't
|
|---|
| 42 | # want to depend on config.h but do want to track version changes.
|
|---|
| 43 | # Delete this file prior to any autoconf run where you want to rebuild
|
|---|
| 44 | # files to pick up a version string change; and leave it stale to
|
|---|
| 45 | # minimize rebuild time after unrelated changes to configure sources.
|
|---|
| 46 | #
|
|---|
| 47 | # As with any generated file in a VC'd directory, you should add
|
|---|
| 48 | # /.version to .gitignore, so that you don't accidentally commit it.
|
|---|
| 49 | # .tarball-version is never generated in a VC'd directory, so needn't
|
|---|
| 50 | # be listed there.
|
|---|
| 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 .version and
|
|---|
| 63 | # .tarball-version will exist in distribution tarballs.
|
|---|
| 64 | #
|
|---|
| 65 | # EXTRA_DIST = $(top_srcdir)/.version
|
|---|
| 66 | # BUILT_SOURCES = $(top_srcdir)/.version
|
|---|
| 67 | # $(top_srcdir)/.version:
|
|---|
| 68 | # echo $(VERSION) > $@-t && mv $@-t $@
|
|---|
| 69 | # dist-hook:
|
|---|
| 70 | # echo $(VERSION) > $(distdir)/.tarball-version
|
|---|
| 71 |
|
|---|
| 72 |
|
|---|
| 73 | me=$0
|
|---|
| 74 |
|
|---|
| 75 | version="git-version-gen $scriptversion
|
|---|
| 76 |
|
|---|
| 77 | Copyright 2011 Free Software Foundation, Inc.
|
|---|
| 78 | There is NO warranty. You may redistribute this software
|
|---|
| 79 | under the terms of the GNU General Public License.
|
|---|
| 80 | For more information about these matters, see the files named COPYING."
|
|---|
| 81 |
|
|---|
| 82 | usage="\
|
|---|
| 83 | Usage: $me [OPTION]... \$srcdir/.tarball-version [TAG-NORMALIZATION-SED-SCRIPT]
|
|---|
| 84 | Print a version string.
|
|---|
| 85 |
|
|---|
| 86 | Options:
|
|---|
| 87 |
|
|---|
| 88 | --prefix prefix of git tags (default 'v')
|
|---|
| 89 |
|
|---|
| 90 | --help display this help and exit
|
|---|
| 91 | --version output version information and exit
|
|---|
| 92 |
|
|---|
| 93 | Running without arguments will suffice in most cases."
|
|---|
| 94 |
|
|---|
| 95 | prefix=v
|
|---|
| 96 |
|
|---|
| 97 | while test $# -gt 0; do
|
|---|
| 98 | case $1 in
|
|---|
| 99 | --help) echo "$usage"; exit 0;;
|
|---|
| 100 | --version) echo "$version"; exit 0;;
|
|---|
| 101 | --prefix) shift; prefix="$1";;
|
|---|
| 102 | -*)
|
|---|
| 103 | echo "$0: Unknown option '$1'." >&2
|
|---|
| 104 | echo "$0: Try '--help' for more information." >&2
|
|---|
| 105 | exit 1;;
|
|---|
| 106 | *)
|
|---|
| 107 | if test -z "$tarball_version_file"; then
|
|---|
| 108 | tarball_version_file="$1"
|
|---|
| 109 | elif test -z "$tag_sed_script"; then
|
|---|
| 110 | tag_sed_script="$1"
|
|---|
| 111 | else
|
|---|
| 112 | echo "$0: extra non-option argument '$1'." >&2
|
|---|
| 113 | exit 1
|
|---|
| 114 | fi;;
|
|---|
| 115 | esac
|
|---|
| 116 | shift
|
|---|
| 117 | done
|
|---|
| 118 |
|
|---|
| 119 | if test -z "$tarball_version_file"; then
|
|---|
| 120 | echo "$usage"
|
|---|
| 121 | exit 1
|
|---|
| 122 | fi
|
|---|
| 123 |
|
|---|
| 124 | tag_sed_script="${tag_sed_script:-s/x/x/}"
|
|---|
| 125 |
|
|---|
| 126 | nl='
|
|---|
| 127 | '
|
|---|
| 128 |
|
|---|
| 129 | # Avoid meddling by environment variable of the same name.
|
|---|
| 130 | v=
|
|---|
| 131 | v_from_git=
|
|---|
| 132 |
|
|---|
| 133 | # First see if there is a tarball-only version file.
|
|---|
| 134 | # then try "git describe", then default.
|
|---|
| 135 | if test -f $tarball_version_file
|
|---|
| 136 | then
|
|---|
| 137 | v=`cat $tarball_version_file` || v=
|
|---|
| 138 | case $v in
|
|---|
| 139 | *$nl*) v= ;; # reject multi-line output
|
|---|
| 140 | [0-9]*) ;;
|
|---|
| 141 | *) v= ;;
|
|---|
| 142 | esac
|
|---|
| 143 | test -z "$v" \
|
|---|
| 144 | && echo "$0: WARNING: $tarball_version_file is missing or damaged" 1>&2
|
|---|
| 145 | fi
|
|---|
| 146 |
|
|---|
| 147 | if test -n "$v"
|
|---|
| 148 | then
|
|---|
| 149 | : # use $v
|
|---|
| 150 | # Otherwise, if there is at least one git commit involving the working
|
|---|
| 151 | # directory, and "git describe" output looks sensible, use that to
|
|---|
| 152 | # derive a version string.
|
|---|
| 153 | elif test "`git log -1 --pretty=format:x . 2>&1`" = x \
|
|---|
| 154 | && v=`git describe --abbrev=4 --match="$prefix*" HEAD 2>/dev/null \
|
|---|
| 155 | || git describe --abbrev=4 HEAD 2>/dev/null` \
|
|---|
| 156 | && v=`printf '%s\n' "$v" | sed "$tag_sed_script"` \
|
|---|
| 157 | && case $v in
|
|---|
| 158 | $prefix[0-9]*) ;;
|
|---|
| 159 | *) (exit 1) ;;
|
|---|
| 160 | esac
|
|---|
| 161 | then
|
|---|
| 162 | # Is this a new git that lists number of commits since the last
|
|---|
| 163 | # tag or the previous older version that did not?
|
|---|
| 164 | # Newer: v6.10-77-g0f8faeb
|
|---|
| 165 | # Older: v6.10-g0f8faeb
|
|---|
| 166 | case $v in
|
|---|
| 167 | *-*-*) : git describe is okay three part flavor ;;
|
|---|
| 168 | *-*)
|
|---|
| 169 | : git describe is older two part flavor
|
|---|
| 170 | # Recreate the number of commits and rewrite such that the
|
|---|
| 171 | # result is the same as if we were using the newer version
|
|---|
| 172 | # of git describe.
|
|---|
| 173 | vtag=`echo "$v" | sed 's/-.*//'`
|
|---|
| 174 | commit_list=`git rev-list "$vtag"..HEAD 2>/dev/null` \
|
|---|
| 175 | || { commit_list=failed;
|
|---|
| 176 | echo "$0: WARNING: git rev-list failed" 1>&2; }
|
|---|
| 177 | numcommits=`echo "$commit_list" | wc -l`
|
|---|
| 178 | v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`;
|
|---|
| 179 | test "$commit_list" = failed && v=UNKNOWN
|
|---|
| 180 | ;;
|
|---|
| 181 | esac
|
|---|
| 182 |
|
|---|
| 183 | # Change the first '-' to a '.', so version-comparing tools work properly.
|
|---|
| 184 | # Remove the "g" in git describe's output string, to save a byte.
|
|---|
| 185 | v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`;
|
|---|
| 186 | v_from_git=1
|
|---|
| 187 | else
|
|---|
| 188 | v=UNKNOWN
|
|---|
| 189 | fi
|
|---|
| 190 |
|
|---|
| 191 | v=`echo "$v" |sed "s/^$prefix//"`
|
|---|
| 192 |
|
|---|
| 193 | # Test whether to append the "-dirty" suffix only if the version
|
|---|
| 194 | # string we're using came from git. I.e., skip the test if it's "UNKNOWN"
|
|---|
| 195 | # or if it came from .tarball-version.
|
|---|
| 196 | if test -n "$v_from_git"; then
|
|---|
| 197 | # Don't declare a version "dirty" merely because a time stamp has changed.
|
|---|
| 198 | git update-index --refresh > /dev/null 2>&1
|
|---|
| 199 |
|
|---|
| 200 | dirty=`exec 2>/dev/null;git diff-index --name-only HEAD` || dirty=
|
|---|
| 201 | case "$dirty" in
|
|---|
| 202 | '') ;;
|
|---|
| 203 | *) # Append the suffix only if there isn't one already.
|
|---|
| 204 | case $v in
|
|---|
| 205 | *-dirty) ;;
|
|---|
| 206 | *) v="$v-dirty" ;;
|
|---|
| 207 | esac ;;
|
|---|
| 208 | esac
|
|---|
| 209 | fi
|
|---|
| 210 |
|
|---|
| 211 | # Omit the trailing newline, so that m4_esyscmd can use the result directly.
|
|---|
| 212 | echo "$v" | tr -d "$nl"
|
|---|
| 213 |
|
|---|
| 214 | # Local variables:
|
|---|
| 215 | # eval: (add-hook 'write-file-hooks 'time-stamp)
|
|---|
| 216 | # time-stamp-start: "scriptversion="
|
|---|
| 217 | # time-stamp-format: "%:y-%02m-%02d.%02H"
|
|---|
| 218 | # time-stamp-time-zone: "UTC"
|
|---|
| 219 | # time-stamp-end: "; # UTC"
|
|---|
| 220 | # End:
|
|---|