diff options
Diffstat (limited to 'update_version')
-rwxr-xr-x | update_version | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/update_version b/update_version new file mode 100755 index 00000000..a9999918 --- /dev/null +++ b/update_version @@ -0,0 +1,65 @@ +#!/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 <ron@debian.org>, 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 |