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Add script to help with backporting PRs to release branches (#24015)

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Signed-off-by: Jon Koops <jonkoops@gmail.com>
Signed-off-by: stianst <stianst@gmail.com>
Co-authored-by: Jon Koops <jonkoops@gmail.com>
This commit is contained in:
Stian Thorgersen 2023-11-29 05:52:49 +01:00 committed by GitHub
parent ccf9a50d4d
commit efd41a9a27
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85
.github/scripts/pr-backport.sh vendored Executable file
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#!/bin/bash -e
TARGET_REMOTE=upstream
KEYCLOAK_REPO=https://github.com/keycloak/keycloak
PR=$1
TARGET=$2
function echo_header() {
echo ""
echo "======================================================================="
echo "$1"
echo "-----------------------------------------------------------------------"
}
function error() {
echo "======================================================================="
echo "Error"
echo "-----------------------------------------------------------------------"
echo "$1"
echo ""
exit 1
}
if ! [ -x "$(command -v gh)" ]; then
error "The GitHub CLI is not installed. See: https://github.com/cli/cli#installation"
fi
if ! [ -x "$(command -v jq)" ]; then
error "The jq CLI is not installed. See: https://jqlang.github.io/jq/download/"
fi
if [ "$PR" == "" ] || [ "$TARGET" == "" ]; then
error "Usage: gh-backport-pr.sh <PR NUMBER> <TARGET MAJOR.MINOR>"
fi
TARGET_BRANCH=release/$TARGET
echo_header "Fetching '$TARGET_REMOTE' remote."
git fetch $TARGET_REMOTE
PR_STATE=$(gh pr view $PR --json state 2>/dev/null | jq -r .state)
if [ "$PR_STATE" == "" ]; then
error "PR #$PR not found. Make sure the PR exists, and that it's been merged."
elif [ "$PR_STATE" != "MERGED" ]; then
error "PR #$PR not merged yet. Only merged PRs can be backported."
fi
MERGE_COMMIT=$(gh pr view $PR --json mergeCommit | jq -r .mergeCommit.oid)
if [ "$MERGE_COMMIT" == "" ]; then
error "Could not resolve merge commit for PR #$PR"
fi
PR_BRANCH=backport-$PR-$TARGET
PR_BODY=$(gh pr view $PR --json body | jq -r .body)
echo_header "Details"
echo "PR Body: $PR_BODY"
echo ""
echo "PR: $KEYCLOAK_REPO/pull/$PR"
echo "Commit: $KEYCLOAK_REPO/commit/$MERGE_COMMIT"
echo ""
echo "PR branch: $PR_BRANCH"
echo "Target branch: $KEYCLOAK_REPO/tree/$TARGET_BRANCH"
echo ""
echo -n "Continue (y/n): "
read PROMPT
if [ "$PROMPT" != "y" ]; then
exit 1
fi
echo_header "Checkout '$TARGET_REMOTE/$TARGET_BRANCH' to '$PR_BRANCH'"
git checkout $TARGET_REMOTE/$TARGET_BRANCH -B $PR_BRANCH
echo_header "Cherry-pick $MERGE_COMMIT"
git cherry-pick $MERGE_COMMIT
echo_header "Push '$PR_BRANCH' to 'origin' remote"
git push origin $PR_BRANCH:$PR_BRANCH --set-upstream
echo_header "Opening web browser to create pull request"
gh pr create -B $TARGET_BRANCH -f -w