Merge pull request #18531 from wallyworld/backport-govuln-fix #202
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name: Merge | |
on: | |
push: | |
branches: ['2.9', '3.1', '3.3', '3.4', '3.5'] | |
jobs: | |
check-merge: | |
name: Check for conflicts | |
runs-on: ubuntu-latest | |
env: | |
MERGE_TARGETS: | | |
2.9: 3.1 | |
3.1: 3.3 | |
3.3: 3.4 | |
3.4: 3.5 | |
3.5: main | |
steps: | |
- name: Determine source/target branches | |
id: branch | |
run: | | |
set -x | |
SOURCE_BRANCH=${{ github.ref_name }} | |
echo "source=$SOURCE_BRANCH" >> "$GITHUB_OUTPUT" | |
TARGET_BRANCH=$(echo "$MERGE_TARGETS" | yq ".\"$SOURCE_BRANCH\"") | |
echo "target=$TARGET_BRANCH" >> "$GITHUB_OUTPUT" | |
- name: Checkout repository | |
uses: actions/checkout@v4 | |
with: | |
fetch-depth: 0 | |
ref: ${{ steps.branch.outputs.source }} | |
- name: Set up Go | |
uses: actions/setup-go@v5 | |
with: | |
go-version-file: 'go.mod' | |
cache: false | |
# We need to do this before trying to merge, because if the merge | |
# creates conflicts in go.mod, we won't be able to use the go command. | |
- name: Pre-compile try-merge script | |
run: | | |
go install ./scripts/try-merge | |
- name: Attempt to merge | |
id: merge | |
env: | |
SOURCE_BRANCH: ${{ steps.branch.outputs.source }} | |
TARGET_BRANCH: ${{ steps.branch.outputs.target }} | |
run: | | |
set -x | |
git fetch origin "$TARGET_BRANCH" | |
git branch "$TARGET_BRANCH" "origin/$TARGET_BRANCH" | |
# Need to set Git username/email to do the merge (yawn) | |
git config user.name 'jujubot' | |
git config user.email '[email protected]' | |
set +e | |
git switch "$TARGET_BRANCH" | |
git merge "$SOURCE_BRANCH" | |
case $? in | |
0) | |
echo "conflicts=false" >> "$GITHUB_OUTPUT" | |
;; | |
1) | |
echo "conflicts=true" >> "$GITHUB_OUTPUT" | |
;; | |
*) | |
exit $? | |
;; | |
esac | |
- name: Generate notification message | |
if: steps.merge.outputs.conflicts == 'true' | |
id: message | |
env: | |
SOURCE_BRANCH: ${{ steps.branch.outputs.source }} | |
TARGET_BRANCH: ${{ steps.branch.outputs.target }} | |
EMAIL_TO_MM_USER: ${{ secrets.EMAIL_TO_MM_USER }} | |
IGNORE_EMAILS: ${{ secrets.MERGE_NOTIFY_IGNORE_EMAILS }} | |
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
run: | | |
MESSAGE=$(try-merge errmsg) | |
echo "message=$MESSAGE" >> "$GITHUB_OUTPUT" | |
- name: Notify if merge has conflicts | |
if: steps.merge.outputs.conflicts == 'true' && steps.message.outputs.message != '' | |
env: | |
MM_TOKEN: ${{ secrets.MM_TOKEN }} | |
MESSAGE: ${{ steps.message.outputs.message }} | |
run: | | |
# install mmctl | |
curl https://github.com/mattermost/mmctl/releases/download/v7.8.5/linux_amd64.tar -Lo mmctl.tar | |
tar -xvf mmctl.tar | |
./mmctl auth login 'https://chat.charmhub.io' --name Charmhub --access-token $MM_TOKEN | |
./mmctl post create Charmhub:juju-bot --message "$MESSAGE" |