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toallab-automation/roles/alvaroaleman.freeipa-client/scripts/release.sh
2018-12-06 16:29:26 -05:00

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#!/bin/bash
##Always exit on $? -ne 0
set -e
##
_cleanup()
{
rm $FILENAME_TMPCHANGELOG &>/dev/null
}
##### Create a release for a project managed with a Git repository #####
### Functions ###
# Confirm dialog for user interactions
# Usage: confirm "Question?"
# Returns: 0 = true, 1 = false
confirm() {
read -r -p "$1 [y/n] " response
case $response in
[yY][eE][sS]|[yY])
return 0;;
*)
return 1;;
esac
}
### Display usage message
usage () {
echo "Usage: $0 [-v VERSION] [-r REMOTE] -s 'One line summary of changes for this release'"
exit 0
}
### Initialize the variables and settings ###
#Variables
RELEASE_VERSION=
REMOTE=
SHORT_SUMMARY=
while getopts v:r:s: OPT; do
case $OPT in
v) RELEASE_VERSION="${OPTARG}";;
r) REMOTE="${OPTARG}";;
s) SHORT_SUMMARY="${OPTARG}";;
esac
done
shift $(( $OPTIND - 1 ));
if [ -z "${SHORT_SUMMARY}" ]; then
usage && exit 0
fi
: ${REMOTE:=origin}
FILENAME_TMPCHANGELOG="$( mktemp --suffix=ansible_role_release_changelog )"
trap _cleanup ALRM HUP INT TERM EXIT
# Fetch Git remote inormation
git fetch $REMOTE --tags
# Some information can be detected
LAST_VERSION=$( git tag -l | tail -n 1 )
REPOSITORY_NAME=$( git remote show -n $REMOTE | grep Fetch | sed 's#.*/##' | sed 's/\.git//' )
EXISTING_TAGS=`git tag -l`
# Detect version if not provided by user
if [[ -z "${RELEASE_VERSION}" ]]; then
RELEASE_VERSION=$(echo $LAST_VERSION|awk -F . '{print $1 "." $2 + 1 "." $3}')
fi
RELEASE_BRANCH="release/${RELEASE_VERSION}"
# Check if there is already a tag named $RELEASE_VERSION
## Temporary disabling exit on $? -ne 0 to be able to display error message
set +e
if [[ $EXISTING_TAGS =~ "$RELEASE_VERSION" ]]; then
>&2 echo "A tag $RELEASE_VERSION already exists!"
>&2 echo "Aborting.."
exit 1
fi
set -e
# Confirm or exit
echo
echo "Settings for the release to be created:"
echo " Version of last release: ${LAST_VERSION}"
echo " Version of new release: ${RELEASE_VERSION}"
echo " Name of Git repository: ${REPOSITORY_NAME}"
echo " Summary text for release: ${SHORT_SUMMARY}"
if ! confirm "Continue with these settings?"; then
exit 1
fi
### Perform release ###
echo
echo "Checkout and pull next branch"
git checkout next
git pull $REMOTE next
echo
echo "Checkout new release branch"
git checkout -b ${RELEASE_BRANCH}
echo
echo "Write VERSION file"
echo ${RELEASE_VERSION} > VERSION
echo
echo "Add release information to CHANGELOG.md file"
cat CHANGELOG.md > $FILENAME_TMPCHANGELOG
echo "# ${RELEASE_VERSION}" > CHANGELOG.md
echo "" >> CHANGELOG.md
if [[ -n ${LAST_VERSION} ]]; then
git shortlog --no-merges next --not ${LAST_VERSION} | sed -e '/^[ \t]/s#^[ \t]*#* #' | perl -pe 's/:$/:\n/g' >> CHANGELOG.md
cat $FILENAME_TMPCHANGELOG >> CHANGELOG.md
else
git shortlog --no-merges next | sed -e '/^[ \t]/s#^[ \t]*#* #' | perl -pe 's/:$/:\n/g' >> CHANGELOG.md
cat $FILENAME_TMPCHANGELOG >> CHANGELOG.md
fi
echo "Please verify and adjust version information that was prepended to CHANGELOG.md file"
echo "Diff looks like this:"
echo
echo '###### Diff start ######'
## Disable exit on $? -ne 0 for the diff command, since it returns $? == 1 if a diff was found
set +e
diff -u $FILENAME_TMPCHANGELOG CHANGELOG.md
set -e
echo '###### Diff end ######'
echo
echo "In case this is not correct, press ctrl+z to pause this script, adjust CHANGELOG.md and get back using the fg command"
while ! confirm "Continue?"; do
echo "And now?"
done
echo
echo "Commit generated release information"
rm -f $FILENAME_TMPCHANGELOG
git add VERSION
git add CHANGELOG.md
git commit -m "${REPOSITORY_NAME} ${RELEASE_VERSION}: ${SHORT_SUMMARY}"
echo
echo "Checkout and pull master branch"
git checkout master
git pull $REMOTE master
echo
echo "Merge release branch to master branch"
git merge --no-ff --log --no-edit ${RELEASE_BRANCH}
echo
echo "Create release tag ${RELEASE_VERSION}"
git tag -a ${RELEASE_VERSION} -m "${REPOSITORY_NAME} ${RELEASE_VERSION}: ${SHORT_SUMMARY}"
echo
echo "Merge release branch to next branch"
git checkout next
git merge ${RELEASE_BRANCH}
echo
echo "Delete release branch - it's obsolete now"
git branch -d ${RELEASE_BRANCH}
echo
echo "Push all changes to remote repository"
git push $REMOTE master next ${RELEASE_VERSION}
exit 0