diff options
Diffstat (limited to 'build-aux/git-version-gen')
| -rwxr-xr-x | build-aux/git-version-gen | 95 |
1 files changed, 74 insertions, 21 deletions
diff --git a/build-aux/git-version-gen b/build-aux/git-version-gen index 686f703..3468247 100755 --- a/build-aux/git-version-gen +++ b/build-aux/git-version-gen @@ -1,8 +1,8 @@ #!/bin/sh # Print a version string. -scriptversion=2011-02-19.19; # UTC +scriptversion=2012-12-31.23; # UTC -# Copyright (C) 2007-2011 Free Software Foundation, Inc. +# Copyright (C) 2007-2013 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 @@ -44,8 +44,10 @@ scriptversion=2011-02-19.19; # UTC # files to pick up a version string change; and leave it stale to # minimize rebuild time after unrelated changes to configure sources. # -# It is probably wise to add these two files to .gitignore, so that you -# don't accidentally commit either generated file. +# 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 @@ -57,24 +59,73 @@ scriptversion=2011-02-19.19; # UTC # [bug-project@example]) # # Then use the following lines in your Makefile.am, so that .version -# will be present for dependencies, and so that .tarball-version will -# exist in distribution tarballs. +# 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 -case $# in - 1|2) ;; - *) echo 1>&2 "Usage: $0 \$srcdir/.tarball-version" \ - '[TAG-NORMALIZATION-SED-SCRIPT]' - exit 1;; -esac -tarball_version_file=$1 -tag_sed_script="${2:-s/x/x/}" +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 of git tags (default 'v') + --fallback 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=' ' @@ -92,22 +143,22 @@ then [0-9]*) ;; *) v= ;; esac - test -z "$v" \ + test "x$v" = x \ && echo "$0: WARNING: $tarball_version_file is missing or damaged" 1>&2 fi -if test -n "$v" +if test "x$v" != x then : # use $v # Otherwise, if there is at least one git commit involving the working # directory, and "git describe" output looks sensible, use that to # derive a version string. elif test "`git log -1 --pretty=format:x . 2>&1`" = x \ - && v=`git describe --abbrev=4 --match='v*' HEAD 2>/dev/null \ + && v=`git describe --abbrev=4 --match="$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 - v[0-9]*) ;; + $prefix[0-9]*) ;; *) (exit 1) ;; esac then @@ -136,16 +187,18 @@ then # Remove the "g" in git describe's output string, to save a byte. v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`; v_from_git=1 -else +elif test "x$fallback" = x || git --version >/dev/null 2>&1; then v=UNKNOWN +else + v=$fallback fi -v=`echo "$v" |sed 's/^v//'` +v=`echo "$v" |sed "s/^$prefix//"` # Test whether to append the "-dirty" suffix only if the version # string we're using came from git. I.e., skip the test if it's "UNKNOWN" # or if it came from .tarball-version. -if test -n "$v_from_git"; then +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 |