package

#!/bin/sh -e

VERSION=$1
BASEDIR="${HOME}/Desktop"
TESTDIR="${HOME}/.local/share/cinnamon/applets"
AUTHOR="mockturtl"
PACKAGE="weather@mockturtl"
TARGET="${BASEDIR}/${PACKAGE}"
DEV_BRANCH="master"
STAGE_BRANCH="staging"
DEPLOY_BRANCH="master"
REMOTE="origin"
MANIFEST="MANIFEST"
VERSION_FILE="metadata.json"
GIT_HOST="https://github.com"
PROJECT="cinnamon-weather"
DEPLOY_URL="${GIT_HOST}/${AUTHOR}/${PROJECT}/zipball/v${VERSION}"
COMMENTS='/^\s*#/'

if [ -z $VERSION ]; then
	cat << EOF
ERROR: You must provide a version number, like:
	$ ./package 1.2.3
EOF
	exit 2
fi

check_pgp() {
	if [ -z $GH_KEY_ID ]; then
		cat << EOF
Define a GH_KEY_ID variable for signing git tags.
Typically this is the email address associated with your public PGP key.
EOF
		exit 11
	fi
}

check_version() {
	# exit code 1 means no match; see grep(1)
	set +e
	grep -q ${VERSION} ${VERSION_FILE}
	VERSION_MATCH=$?
	set -e

	# { "JSON": "beware of colons!" }
	if [ $VERSION_MATCH -ne 0 ]; then
		cat << EOF
WARNING: { $(grep version ${VERSION_FILE}) } in ${VERSION_FILE} does not match the package version provided.
	You may have forgotten to tag this release. (v$VERSION)

EOF
	fi
}

validate_version() {
	check_version

	if [ $VERSION_MATCH -ne 0 ]; then
		cat << EOF
ERROR: Invalid version.  Fix ${VERSION_FILE} to push.  You may wish to revert the last commit.

EOF
		exit 13
	fi
}

do_package() {
	check_version

	rm -rf ${TARGET}*
	mkdir -p ${TARGET}/
	# strip comment lines
	cat ${MANIFEST} | sed -r ${COMMENTS}d | xargs -i cp -r '{}' ${TARGET}
	rm -rf ${TARGET}/po/*.po~

	cd ${BASEDIR}
	local zipfile=${PACKAGE}-${VERSION}
	zip -q -r ${zipfile}.zip ${PACKAGE}

	cat << EOF
Done.	Release ${VERSION} is ready to publish at:
	${BASEDIR}/${zipfile}.zip

EOF
}

do_tag() {
	check_pgp

	cat << EOF
Rebasing ${STAGE_BRANCH} onto ${DEV_BRANCH}...
EOF
	git checkout ${STAGE_BRANCH}
	git rebase ${DEV_BRANCH}
	cat << EOF
Bumping version (${VERSION}) in ${VERSION_FILE}...
EOF
	# major.minor.patch with optional suffix
	sed -i "s/[0-9]\+\.[0-9]\+\.[0-9]\+[0-9A-Za-z.+~-]*/$VERSION/" ${VERSION_FILE}
	cat << EOF
Creating tag...
EOF
	git add ${VERSION_FILE}
	# allow manual version-bump commits; see git-diff(1)
	git diff --quiet --staged || git commit -m 'bump version'
	git tag -u ${GH_KEY_ID} --cleanup=whitespace v${VERSION}
	cat << EOF
Done.  Now run './deploy ${VERSION}' to merge into ${DEPLOY_BRANCH} and push.

EOF
	git checkout ${DEV_BRANCH}
}

do_deploy() {
	git checkout ${DEPLOY_BRANCH}
	git merge ${STAGE_BRANCH}
	validate_version
	git push ${REMOTE} ${DEPLOY_BRANCH}
	git push --tags
	cat << EOF
Your new tag is at ${DEPLOY_URL}.

EOF
}

do_translate() {
	LOCALES="$(cat po/LINGUAS)"
	UUID="$(find po/ -name *.pot | xargs -i basename {} .pot)"

	cat << EOF
WARNING: not updating template for ${UUID}; please investigate!
EOF
	# python mode is OK for javascript
	#xgettext -d ${UUID} -o po/${UUID}.pot -L python --keyword=_ applet.js

  # settings-schema.json translation
  # not idempotent! the xgettext call above will remove those lines
  #cinnamon-json-makepot po/${UUID}.pot

	cat << EOF
Merging existing translation files with new template...
EOF
	for LOCALE in ${LOCALES}; do
		msgmerge -U po/${LOCALE}.po po/${UUID}.pot
	done
	cat << EOF
Done.
EOF
}

do_test() {

  do_package

cat<<EOF
  Updating...
EOF

  rm -rf ${TESTDIR}/${PACKAGE} 2>/dev/null
  cp -r ${BASEDIR}/${PACKAGE} ${TESTDIR}
}

case `basename $0` in
	"tag")
		do_tag
		;;
	"package")
		do_package
		;;
	"test")
		do_test
		;;
	"deploy")
		do_deploy
		;;
	"translate")
		do_translate
		;;
	*)
		cat << EOF
Usage: tag | deploy | package | translate | test
EOF
		exit 2
		;;
esac