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306 lines
10 KiB
306 lines
10 KiB
#!/bin/bash
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set -x
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set -e
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set -u
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if [ -r /etc/jenkins/debian_glue ] ; then
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. /etc/jenkins/debian_glue
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fi
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[ -n "${DEBEMAIL:-}" ] || DEBEMAIL="jenkins-debian-glue Autobuilder <jenkins@`hostname -f`>"
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export DEBEMAIL
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[ -n "${SOURCE_DIRECTORY:-}" ] || SOURCE_DIRECTORY='source' # where checkout of sources resides
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if [ ! -d "${SOURCE_DIRECTORY}" ] ; then
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echo "Please run the script in the jenkins workspace." >&2
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exit 1
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fi
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if [ -z "${BUILD_NUMBER:-}" ] ; then
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echo "No BUILD_NUMBER defined, please run it in jenkins." >&2
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exit 1
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fi
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if [ -z "${GIT_COMMIT:-}" ] ; then
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echo "No GIT_COMMIT defined, please run it with git-plugin in jenkins. ">&2
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exit 1
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fi
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JENKINS_DEBIAN_GLUE_VERSION=$(dpkg --list jenkins-debian-glue 2>/dev/null | awk '/^ii/ {print $3}')
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if [ -n "${JENKINS_DEBIAN_GLUE_VERSION:-}" ] ; then
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echo "*** Running jenkins-debian-glue version $JENKINS_DEBIAN_GLUE_VERSION ***"
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fi
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gbp_opts() {
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# support overriding git-buildpackage options
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if [ -n "${GBP_OPTS:-}" ] ; then
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echo "Found environment variable GBP_OPTS, set to ${GBP_OPTS}"
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else
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GBP_OPTS=" -nc --git-force-create --git-ignore-new --git-ignore-branch -S -us -uc --git-verbose --git-builder=/bin/true --git-cleaner=/bin/true "
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echo "Using git-buildpackage default options provided by jenkins-debian-glue"
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fi
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}
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version_information() {
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# retrieve and adjust information
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ORIG_VERSION=$(dpkg-parsechangelog --count 1 | awk '/^Version/ {print $2}')
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INCREASED_VERSION=$(increase-version-number $ORIG_VERSION)
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DISTRIBUTION=$(dpkg-parsechangelog --count 1 | awk '/^Distribution/ {print $2}')
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# we want to get a version string like
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# $ORIG_VERSION+0~$TIMESTAMP.$BUILD_NUMBER~1.$GIT_ID
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# so the version is always increasing over time, no matter what
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TIMESTAMP="$(date -u +%Y%m%d%H%M%S)"
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BUILD_VERSION="${TIMESTAMP}.${BUILD_NUMBER}" # git-dch appends something like ~1.gbp5f433e then
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# we do NOT raise the version number, if we detect an unreleased version,
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# otherwise the released version would be older than our snapshot builds
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APPLY_VERSION_WORKAROUND=false
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if [ "$DISTRIBUTION" = "UNRELEASED" ] && dpkg --compare-versions "$ORIG_VERSION" lt "$INCREASED_VERSION" ; then
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echo "*** Not increasing version number as distribution is set to UNRELEASED ***"
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INCREASED_VERSION="$ORIG_VERSION"
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APPLY_VERSION_WORKAROUND=true
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fi
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VERSION_STRING="${INCREASED_VERSION}~${BUILD_VERSION}"
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if [ -n "${distribution:-}" ] ; then
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echo "Distribution variable found. Adding distribution specific version."
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VERSION_STRING="${VERSION_STRING}+${distribution}"
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fi
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echo "*** Version string set to $VERSION_STRING ***"
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}
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# support overriding git-dch options
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dch_opts() {
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if [ -n "${DCH_OPTS:-}" ] ; then
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echo "Found environment variable DCH_OPTS, set to ${DCH_OPTS}"
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else
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DCH_OPTS="-S --multimaint-merge --ignore-branch"
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echo "Using default git-dch options (${DCH_OPTS})"
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fi
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# support overriding extra options for git-dch
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if [ -n "${DCH_EXTRA_OPTS:-}" ] ; then
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echo "Found environment variable DCH_EXTRA_OPTS, set to ${DCH_EXTRA_OPTS}"
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else
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DCH_EXTRA_OPTS="--new-version=${VERSION_STRING}"
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echo "Using extra git-dch options (${DCH_EXTRA_OPTS})"
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fi
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}
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create_local_branch() {
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[ -n "${1:-}" ] || return 1
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local BRANCH="$1"
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if git branch -a | grep -q "remotes/origin/${BRANCH}"'$' ; then
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git branch -D "${BRANCH}" || true
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git branch "${BRANCH}" "remotes/origin/${BRANCH}"
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else
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echo "NOTE: branch $BRANCH does not exist, ignoring request to checkout therefore."
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fi
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}
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git_dch_auto() {
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if $APPLY_VERSION_WORKAROUND ; then
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echo "Applying version workaround workaround"
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dch -b --distribution=UNRELEASED --newversion=$VERSION_STRING -- \
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"SNAPSHOT autobuild for unreleased $ORIG_VERSION via jenkins-debian-glue."
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else
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git-dch --auto $DCH_OPTS $DCH_EXTRA_OPTS
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fi
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}
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identify_latest_change() {
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# debian/changelog might be a symlink (e.g. because debian points to
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# pkg/debian), so make sure we don't access a non-existing file
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# by calling readlink
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git checkout -- $(readlink -f debian/changelog)
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local OLD_VERSION=$(dpkg-parsechangelog | awk '/^Version: / {print $2}')
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local last_tag=$(git describe $(git rev-list --tags='[^u]*' --max-count=1 HEAD))
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local last_merge=$(git describe $(git rev-list --all --merges --max-count=1 HEAD))
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local since=${last_tag}
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if [ -n "$last_merge" ] ; then
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local merge_date=$(git log ${last_merge} --pretty="format:%at" -1)
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local tag_date=$(git log ${last_tag} --pretty="format:%at" -1)
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if [ ${merge_date} -gt ${tag_date} ] ; then
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local since=${last_merge}
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fi
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fi
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echo "Latest tag [${last_tag:-}] / merge [${last_merge:-}] seems to be $since"
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git-dch -s "${since}" $DCH_OPTS $DCH_EXTRA_OPTS
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local NEW_VERSION=$(dpkg-parsechangelog | awk '/^Version: / {print $2}')
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if dpkg --compare-versions "$NEW_VERSION" lt "$OLD_VERSION" ; then
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echo "Calculated version is older than last release, falling back to auto mode."
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# debian/changelog might be a symlink (e.g. because debian points to
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# pkg/debian), so make sure we don't access a non-existing file
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# by calling readlink
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git checkout -- $(readlink -f debian/changelog)
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git_dch_auto
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fi
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}
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branch_checkout() {
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# git-dch and git-buildpackage refuse to operate on a single git
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# commit, so instead create a temporary branch to work on
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random_branch="jenkins-debian-glue-buildbranch$RANDOM"
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if [ -n "${tag:-}" ] && [ "${tag:-}" != "none" ] ; then
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echo "Making sure that random_branch $random_branch does not exist"
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git branch -D "$random_branch" || true
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echo "Checking out branch $random_branch based on tag $tag"
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git checkout -b "$random_branch" "$tag"
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elif [ -n "${branch:-}" ] ; then
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# prepend "origin" when checking out a branch, otherwise we might be
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# checking out a branch which doesn't exist locally yet, failing with:
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# | fatal: git checkout: updating paths is incompatible with switching branches.
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# | Did you intend to checkout '$BRANCH' which can not be resolved as commit?
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local checkout_branch
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case "$branch" in
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# rewrite refs/heads/FOO to refs/remotes/origin/FOO, otherwise it fails;
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# the refs/heads/FOO is something e.g. github pushes through its API
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refs/heads/*) checkout_branch="${branch/refs\/heads/refs/remotes/origin}" ;;
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# keep as it is when receiving origin/* already
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origin/*) checkout_branch="$branch" ;;
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# prepend "origin/" otherwise
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*) checkout_branch="origin/${branch}" ;;
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esac
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echo "Making sure that random_branch $random_branch does not exist"
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git branch -D "$random_branch" || true
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echo "Checking out branch $random_branch based on branch $checkout_branch"
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git checkout -b "$random_branch" "$checkout_branch"
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else
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echo "Making sure that random_branch $random_branch does not exist"
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git branch -D "$random_branch" || true
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echo "Checking out branch $random_branch based on commit $GIT_COMMIT"
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git checkout -b "$random_branch" "$GIT_COMMIT"
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fi
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}
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changelog_generation() {
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# Allow skipping of changelog creation, e.g. to build a branch as-is
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if [ "${SKIP_DCH:-}" = "true" ] ; then
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echo "*** SKIP_DCH is set, not modifying debian/changelog therefore ***"
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else
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if [ -n "${tag:-}" ] && [ "${tag:-}" != "none" ] ; then
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echo "Tag parameter found (and not set to 'none'), not touching the changelog."
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elif [ "${1:-}" = "identify" ] ; then
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echo "Trying to identify latest tag / merge..."
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if ! git describe $(git rev-list --tags='[^u]*' --max-count=1 HEAD) >/dev/null ; then
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echo "Failed to identify latest change, falling back to auto mode."
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git_dch_auto
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else
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identify_latest_change
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fi
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elif [ -r debian/gbp.conf ] ; then
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echo "Found debian/gbp.conf, using git-dch with auto mode."
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git_dch_auto
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else
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echo "Using git-dch with auto mode."
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git_dch_auto
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fi
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# get rid of "UNRELEASED" distribution header, only
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# necessary if the debian/changelog was modified
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if [ -z "${tag:-}" ] ; then
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debchange --release ""
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fi
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fi
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}
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git_cleanup() {
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if [ -n "${SKIP_GIT_CLEANUP:-}" ] ; then
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echo "*** Skipping git_cleanup as requested via SKIP_QUILT_CLEANUP ***"
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return 0
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fi
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echo "*** Cleaning git repository to make sure there are no modified files ***"
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echo "*** Note: You can skip this step by setting SKIP_GIT_CLEANUP=true ***"
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git clean -fxd
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git reset --hard HEAD
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}
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quilt_cleanup() {
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if [ -n "${SKIP_QUILT_CLEANUP:-}" ] ; then
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echo "*** Skipping quilt_cleanup as requested via SKIP_QUILT_CLEANUP ***"
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return 0
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fi
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echo "*** Unapplying all possibly applied quilt patches and removing quilt directory ***"
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echo "*** Note: You can skip this step by setting SKIP_QUILT_CLEANUP=true ***"
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quilt pop -a || true
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rm -rf .pc
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}
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# main execution
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echo "*** source package build phase ***"
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rm -f ./* || true
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if [ -n "${PRE_SOURCE_HOOK:-}" ] ; then
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echo "*** Found environment variable PRE_SOURCE_HOOK, set to ${PRE_SOURCE_HOOK:-} ***"
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sh ${PRE_SOURCE_HOOK:-}
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fi
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cd "$SOURCE_DIRECTORY"
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git_cleanup
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# make sure common branches are available for git-buildpackage
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create_local_branch upstream
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create_local_branch debian
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create_local_branch pristine-tar
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# check out the according branch/tag with help of $random_branch
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branch_checkout
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# retrieve version information *after* checking out the according branch/tag,
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# otherwise version number might result in something different than expected
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version_information
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# handling of debian/changelog
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dch_opts
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changelog_generation
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# set $GBP_OPTS
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gbp_opts
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# prepare orig.tar.gz using pristine-tar, but without actually building the source package
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if [ "${IGNORE_GIT_BUILDPACKAGE:-}" = "true" ] ; then
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echo "Skipping git-buildpackage execution as requested via IGNORE_GIT_BUILDPACKAGE ***"
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else
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git-buildpackage ${GBP_OPTS}
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fi
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quilt_cleanup
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# build source package, run before switching back to previous branch
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# to get the actual requested version
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dpkg-buildpackage -uc -us -nc -d -S -i -I --source-option=--unapply-patches
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# revert to original debian/changelog to avoid merge conflicts
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git checkout -- $(readlink -f debian/changelog)
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git checkout -f ${GIT_BRANCH} # switch back to previous "branch" before removing the tmp branch
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git branch -D "$random_branch"
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# vim:foldmethod=marker ts=2 ft=sh ai expandtab sw=2
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