add releaser script

.travis/releaser.sh

@@ -0,0 +1,71 @@
+#!/bin/bash
+#
+# Copyright (C) 2018 Pawel Krupa (@paulfantom) - All Rights Reserved
+# Permission to copy and modify is granted under the MIT license
+#
+# Script to automatically do a couple of things:
+#   - generate a new tag according to semver (https://semver.org/)
+#   - generate CHANGELOG.md by using https://github.com/skywinder/github-changelog-generator
+#   - sync CHANGELOG with GitHub releases by using https://github.com/mattbrictson/chandler
+#
+# Tags are generated by searching for a keyword in last commit message. Keywords are:
+#  - [patch] or [fix] to bump patch number
+#  - [minor], [feature] or [feat] to bump minor number
+#  - [major] or [breaking change] to bump major number
+# All keywords MUST be surrounded with square braces.
+#
+# Script uses git mechanisms for locking, so it can be used in parallel builds
+#
+# Requirements:
+#   - GH_TOKEN variable set with GitHub token. Access level: repo.public_repo
+#   - docker
+#   - git-semver python package (pip install git-semver)
+
+# Exit when latest commit is tagged
+[[ $(git tag --points-at) ]] && exit 0
+
+# Some basic variables
+GIT_MAIL="cloudalchemybot@gmail.com"
+GIT_USER="cloudalchemybot"
+ORGANIZATION=$(echo "$TRAVIS_REPO_SLUG" | awk -F '/' '{print $1}')
+PROJECT=$(echo "$TRAVIS_REPO_SLUG" | awk -F '/' '{print $2}')
+GALAXY_URL="https://galaxy.ansible.com/${ORGANIZATION}/${PROJECT#ansible-}"
+
+# Git config
+git config --global user.email "${GIT_MAIL}"
+git config --global user.name "${GIT_USER}"
+GIT_URL=$(git config --get remote.origin.url)
+GIT_URL=${GIT_URL#*//}
+
+# Generate TAG
+GIT_TAG=none
+echo "Last commit message: $TRAVIS_COMMIT_MESSAGE"
+case "${TRAVIS_COMMIT_MESSAGE}" in
+  *"[patch]"*|*"[fix]"* )                GIT_TAG=$(git semver --next-patch) ;;
+  *"[minor]"*|*"[feat]"*|*"[feature]"* ) GIT_TAG=$(git semver --next-minor) ;;
+  *"[major]"*|*"[breaking change]"* )    GIT_TAG=$(git semver --next-major) ;;
+  *) echo "Keyword not detected. Doing nothing" ;;
+esac
+if [ "$GIT_TAG" != "none" ]; then
+    echo "Assigning new tag: $GIT_TAG"
+    git tag "$GIT_TAG" -a -m "Automatic tag generation for travis build no. $TRAVIS_BUILD_NUMBER"
+    git push "https://${GH_TOKEN}:@${GIT_URL}" --tags || exit 0
+fi
+
+# Generate CHANGELOG.md
+git checkout master
+git pull
+docker run -it --rm -v "$(pwd)":/usr/local/src/your-app ferrarimarco/github-changelog-generator \
+               -u "${ORGANIZATION}" -p "${PROJECT}" --token "${GH_TOKEN}" \
+               --release-url "${GALAXY_URL}" \
+               --unreleased-label "**Next release**" --no-compare-link
+
+git add CHANGELOG.md
+git commit -m '[ci skip] Automatic changelog update'
+
+git push "https://${GH_TOKEN}:@${GIT_URL}" || exit 0
+
+# Sync changelog to github releases
+if [ "$GIT_TAG" != "none" ]; then
+    docker run -e CHANDLER_GITHUB_API_TOKEN="${GH_TOKEN}" -v "$(pwd)":/chandler -ti whizark/chandler push "${GIT_TAG}"
+fi