fix release notes automation (#173)

* fix release notes automation

Signed-off-by: Sandor Szücs <[email protected]>

* only show merge message and not all commit messages in changelog

Signed-off-by: Sandor Szücs <[email protected]>

* migrate release notes to use a tempfile, which preserves newlines and is easier to handle

Signed-off-by: Sandor Szücs <[email protected]>

* use -e to render newlines

Signed-off-by: Sandor Szücs <[email protected]>

Author: szuecs

delivery.yaml

@@ -90,21 +90,15 @@ pipeline:
       git diff --stat --exit-code
       IMAGE=$IMAGE VERSION=$VERSION make build.push
       echo "create release page"
-      GITMSG=$(git log -1 --pretty=%B | grep -v 'Signed-off-by:' | grep -v -E '^\s*$' | tail -n +2)
-      MSG=$(cat <<"EOF"
-      ### Changes
-
-      GITMSG
-
-      ### Docker image
-
-      Docker image is available in Zalando's Open Source registry:
-
-      ```
-      docker run -it registry.opensource.zalan.do/teapot/stackset-controller:VERSION --help
-      ```
-      EOF
-      )
-      MSG=$(echo $MSG | sed "s/VERSION/$VERSION/")
-      MSG=$(echo $MSG | sed "s/GITMSG/$GITMSG/")
-      git gh-release -m "${MSG}" $VERSION
+      tf=$(mktemp)
+      echo -e "### Changes\n" >$tf
+      git log -1 --pretty=%B | grep -v 'Signed-off-by:' | grep -v -E '^\s*$' | grep -vE '^\*' >>$tf
+      echo -e "\n### Docker image\n" >>$tf
+      echo -e "Docker image is available in Zalando's Open Source registry:\n" >>$tf
+      echo -e '```' >>$tf
+      echo -e "docker run -it registry.opensource.zalan.do/teapot/stackset-controller:${VERSION} --help" >>$tf
+      echo -e '```' >>$tf
+      echo "################################"
+      cat $tf
+      echo "################################"
+      git gh-release --message-from-file "${tf}" $VERSION