GITLAB_CHANGELOG_VERSION ?= master
GITLAB_CHANGELOG = .tmp/gitlab-changelog-$(GITLAB_CHANGELOG_VERSION)

.PHONY: generate_changelog
generate_changelog: export CHANGELOG_RELEASE ?= dev
generate_changelog: $(GITLAB_CHANGELOG)
	# Generating new changelog entries
	@$(GITLAB_CHANGELOG) -project-id 6329679 \
		-release $(CHANGELOG_RELEASE) \
		-starting-point-matcher "v[0-9]*.[0-9]*.[0-9]*" \
		-config-file .gitlab/changelog.yml \
		-changelog-file CHANGELOG.md

$(GITLAB_CHANGELOG): OS_TYPE ?= $(shell uname -s | tr '[:upper:]' '[:lower:]')
$(GITLAB_CHANGELOG): DOWNLOAD_URL = "https://storage.googleapis.com/gitlab-runner-tools/gitlab-changelog/$(GITLAB_CHANGELOG_VERSION)/gitlab-changelog-$(OS_TYPE)-amd64"
$(GITLAB_CHANGELOG):
	# Installing $(DOWNLOAD_URL) as $(GITLAB_CHANGELOG)
	@mkdir -p $(shell dirname $(GITLAB_CHANGELOG))
	@curl -sL "$(DOWNLOAD_URL)" -o "$(GITLAB_CHANGELOG)"
	@chmod +x "$(GITLAB_CHANGELOG)"