3 # Creates and updates the package_version information used by configure.ac
4 # (or other makefiles). When run inside a git repository it will use the
5 # version information that can be queried from it unless AUTO_UPDATE is set
6 # to 'no'. If no version is currently known it will be set to 'unknown'.
8 # If called with the argument 'release', the PACKAGE_VERSION will be updated
9 # even if AUTO_UPDATE=no, but the value of AUTO_UPDATE shall be preserved.
10 # This is used to force a version update whenever `make dist` is run.
12 # The exit status is 1 if package_version is not modified, else 0 is returned.
14 # This script should NOT be included in distributed tarballs, because if a
15 # parent directory contains a git repository we do not want to accidentally
16 # retrieve the version information from it instead. Tarballs should ship
17 # with only the package_version file.
19 # Ron <ron@debian.org>, 2012.
23 if [ -e "$SRCDIR/package_version" ]; then
24 . "$SRCDIR/package_version"
27 if [ "$AUTO_UPDATE" = no ]; then
28 [ "$1" = release ] || exit 1
33 # We run `git status` before describe here to ensure that we don't get a false
34 # -dirty from files that have been touched but are not actually altered in the
36 GIT_VERSION=$(cd "$SRCDIR" && git status > /dev/null 2>&1 \
37 && git describe --tags --match 'v*' --dirty 2> /dev/null)
38 GIT_VERSION=${GIT_VERSION#v}
40 if [ -n "$GIT_VERSION" ]; then
42 [ "$GIT_VERSION" != "$PACKAGE_VERSION" ] || exit 1
43 PACKAGE_VERSION="$GIT_VERSION"
45 elif [ -z "$PACKAGE_VERSION" ]; then
46 # No current package_version and no git ...
47 # We really shouldn't ever get here, because this script should only be
48 # included in the git repository, and should usually be export-ignored.
49 PACKAGE_VERSION="unknown"
54 cat > "$SRCDIR/package_version" <<-EOF
55 # Automatically generated by update_version.
56 # This file may be sourced into a shell script or makefile.
58 # Set this to 'no' if you do not wish the version information
59 # to be checked and updated for every build. Most people will
60 # never want to change this, it is an option for developers
61 # making frequent changes that they know will not be released.
62 AUTO_UPDATE=$AUTO_UPDATE
64 PACKAGE_VERSION="$PACKAGE_VERSION"