#!/bin/bash # Creates and updates the package_version information used by configure.ac # (or other makefiles). When run inside a git repository it will use the # version information that can be queried from it unless AUTO_UPDATE is set # to 'no'. If no version is currently known it will be set to 'unknown'. # # If called with the argument 'release', the PACKAGE_VERSION will be updated # even if AUTO_UPDATE=no, but the value of AUTO_UPDATE shall be preserved. # This is used to force a version update whenever `make dist` is run. # # The exit status is 1 if package_version is not modified, else 0 is returned. # # This script should NOT be included in distributed tarballs, because if a # parent directory contains a git repository we do not want to accidentally # retrieve the version information from it instead. Tarballs should ship # with only the package_version file. # # Ron , 2012. SRCDIR=$(dirname $0) if [ -e "$SRCDIR/package_version" ]; then . "$SRCDIR/package_version" fi if [ "$AUTO_UPDATE" = no ]; then [ "$1" = release ] || exit 1 else AUTO_UPDATE=yes fi # We run `git status` before describe here to ensure that we don't get a false # -dirty from files that have been touched but are not actually altered in the # working dir. GIT_VERSION=$(cd "$SRCDIR" && git status > /dev/null 2>&1 \ && git describe --tags --match 'v*' --dirty 2> /dev/null) GIT_VERSION=${GIT_VERSION#v} if [ -n "$GIT_VERSION" ]; then [ "$GIT_VERSION" != "$PACKAGE_VERSION" ] || exit 1 PACKAGE_VERSION="$GIT_VERSION" elif [ -z "$PACKAGE_VERSION" ]; then # No current package_version and no git ... # We really shouldn't ever get here, because this script should only be # included in the git repository, and should usually be export-ignored. PACKAGE_VERSION="unknown" else exit 1 fi cat > "$SRCDIR/package_version" <<-EOF # Automatically generated by update_version. # This file may be sourced into a shell script or makefile. # Set this to 'no' if you do not wish the version information # to be checked and updated for every build. Most people will # never want to change this, it is an option for developers # making frequent changes that they know will not be released. AUTO_UPDATE=$AUTO_UPDATE PACKAGE_VERSION="$PACKAGE_VERSION" EOF