Merge pull request #1206 from betatim/include-title

[MRG] Add commit title to chartpress message

Author: consideRatio

ci/publish

@@ -27,7 +27,8 @@ if [[ $GITHUB_REF != refs/tags/* ]]; then
     #       jupyterhub/binderhub@123abcd which will be understood as a reference
     #       by GitHub.
     PR_OR_HASH=$(git log -1 --pretty=%h-%B | head -n1 | sed 's/^.*\(#[0-9]*\).*/\1/' | sed 's/^\([0-9a-f]*\)-.*/@\1/')
-    EXTRA_MESSAGE="${GITHUB_REPOSITORY}${PR_OR_HASH}"
+    LATEST_COMMIT_TITLE=$(git log -1 --pretty=%B | head -n1)
+    EXTRA_MESSAGE="${GITHUB_REPOSITORY}${PR_OR_HASH} ${LATEST_COMMIT_TITLE}"
     chartpress --push --publish-chart --long --extra-message "${EXTRA_MESSAGE}"
 else
     # Setting a tag explicitly enforces a rebuild if this tag had already been