WebSVN – nexmon – Blame – Rev 1 – /utilities/gettext/build-aux/git-version-gen

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#!/bin/sh

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# Print a version string.

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scriptversion=2016-05-08.18; # UTC

#

# 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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# the Free Software Foundation; either version 3 of the License, or

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# (at your option) any later version.

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#

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

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# GNU General Public License for more details.

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#

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# You should have received a copy of the GNU General Public License

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# along with this program. If not, see <http://www.gnu.org/licenses/>.

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# This script is derived from GIT-VERSION-GEN from GIT: http://git.or.cz/.

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# It may be run two ways:

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# - from a git repository in which the "git describe" command below

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# produces useful output (thus requiring at least one signed tag)

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# - from a non-git-repo directory containing a .tarball-version file, which

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# presumes this script is invoked like "./git-version-gen .tarball-version".

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# In order to use intra-version strings in your project, you will need two

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# separate generated version string files:

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#

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# .tarball-version - present only in a distribution tarball, and not in

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# a checked-out repository. Created with contents that were learned at

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# the last time autoconf was run, and used by git-version-gen. Must not

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# be present in either $(srcdir) or $(builddir) for git-version-gen to

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# give accurate answers during normal development with a checked out tree,

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# but must be present in a tarball when there is no version control system.

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# Therefore, it cannot be used in any dependencies. GNUmakefile has

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# hooks to force a reconfigure at distribution time to get the value

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# correct, without penalizing normal development with extra reconfigures.

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#

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# .version - present in a checked-out repository and in a distribution

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# tarball. Usable in dependencies, particularly for files that don't

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# want to depend on config.h but do want to track version changes.

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# Delete this file prior to any autoconf run where you want to rebuild

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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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# 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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# since configure.ac no longer includes a version string, Makefile rules

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# should not depend on configure.ac for version updates).

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#

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# AC_INIT([GNU project],

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# m4_esyscmd([build-aux/git-version-gen .tarball-version]),

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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 .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

me=$0

version="git-version-gen $scriptversion

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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.

Options:

--prefix PREFIX prefix of git tags (default 'v')

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--fallback VERSION

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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."

prefix=v

fallback=

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

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.

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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` || v=

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case $v in

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*$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

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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"` \

&& case $v in

$prefix[0-9]*) ;;

*) (exit 1) ;;

esac

then

# Is this a new git that lists number of commits since the last

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# tag or the previous older version that did not?

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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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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

;;

esac

# 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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v_from_git=1

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elif test "x$fallback" = x || git --version >/dev/null 2>&1; then

v=UNKNOWN

else

v=$fallback

fi

v=`echo "$v" |sed "s/^$prefix//"`

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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=`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.

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)

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# time-stamp-start: "scriptversion="

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# time-stamp-format: "%:y-%02m-%02d.%02H"

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# time-stamp-time-zone: "UTC0"

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# time-stamp-end: "; # UTC"

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# End:

nexmon – Blame information for rev 1