forked from SteamWar/SteamWar
Add backport workflow for CommonCore changes and update build.yml
Signed-off-by: Chaoscaot <max@maxsp.de>
This commit is contained in:
@@ -0,0 +1,213 @@
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name: Backport CommonCore
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on:
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pull_request:
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types: [closed]
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branches:
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- main
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permissions:
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contents: write
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pull-requests: write
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jobs:
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backport:
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name: Backport CommonCore changes
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runs-on: ubuntu-latest
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if: ${{ github.event.pull_request.merged == true && github.event.pull_request.base.ref == 'main' }}
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steps:
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- name: Checkout sources
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uses: actions/checkout@v6
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with:
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ref: main
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fetch-depth: 0
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token: ${{ secrets.GITEA_TOKEN }}
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- name: Create version branch backports
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shell: bash
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env:
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GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
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run: |
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set -euo pipefail
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api() {
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local method="$1"
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local path="$2"
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local body="${3:-}"
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if [[ -n "$body" ]]; then
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curl --fail --silent --show-error \
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-X "$method" \
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-H "Authorization: token ${GITEA_TOKEN}" \
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-H "Accept: application/json" \
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-H "Content-Type: application/json" \
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--data "$body" \
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"${GITHUB_API_URL}${path}"
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else
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curl --fail --silent --show-error \
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-X "$method" \
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-H "Authorization: token ${GITEA_TOKEN}" \
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-H "Accept: application/json" \
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"${GITHUB_API_URL}${path}"
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fi
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}
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repo_path="/repos/${GITHUB_REPOSITORY}"
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pr_number="$(jq -r '.number' "$GITHUB_EVENT_PATH")"
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pr_title="$(jq -r '.pull_request.title // ""' "$GITHUB_EVENT_PATH")"
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event_commit="$(jq -r '.pull_request.merge_commit_sha // .pull_request.merged_commit_id // .commit_id // env.GITHUB_SHA' "$GITHUB_EVENT_PATH")"
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commoncore_files=()
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page=1
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while true; do
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response="$(api GET "${repo_path}/pulls/${pr_number}/files?page=${page}&limit=50")"
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count="$(jq 'length' <<< "$response")"
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while IFS= read -r file; do
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[[ -n "$file" ]] && commoncore_files+=("$file")
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done < <(jq -r '.[] | (.filename // .path // .name // "") | select(startswith("CommonCore/"))' <<< "$response")
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[[ "$count" -lt 50 ]] && break
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page=$((page + 1))
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done
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if [[ "${#commoncore_files[@]}" -eq 0 ]]; then
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echo "PR #${pr_number} did not change CommonCore/; nothing to backport."
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exit 0
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fi
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echo "PR #${pr_number} changed CommonCore files:"
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printf ' - %s\n' "${commoncore_files[@]}"
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pr_commits=()
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page=1
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while true; do
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response="$(api GET "${repo_path}/pulls/${pr_number}/commits?page=${page}&limit=50")"
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count="$(jq 'length' <<< "$response")"
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while IFS= read -r commit; do
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[[ -n "$commit" ]] && pr_commits+=("$commit")
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done < <(jq -r '.[] | .sha // .id // empty' <<< "$response")
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[[ "$count" -lt 50 ]] && break
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page=$((page + 1))
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done
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source_commits=("$event_commit")
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if [[ "${#pr_commits[@]}" -gt 1 ]]; then
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for commit in "${pr_commits[@]}"; do
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if [[ "$commit" == "$event_commit" ]]; then
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source_commits=("${pr_commits[@]}")
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break
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fi
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done
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fi
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echo "Using source commit plan:"
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printf ' - %s\n' "${source_commits[@]}"
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git config --global user.name "SteamWar Backport Bot"
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git config --global user.email "backport-bot@steamwar.de"
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git config --global http.extraHeader "Authorization: token ${GITEA_TOKEN}"
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git fetch origin '+refs/heads/*:refs/remotes/origin/*'
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for commit in "${source_commits[@]}"; do
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git cat-file -e "${commit}^{commit}"
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done
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mapfile -t version_branches < <(
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git for-each-ref --format='%(refname:short)' refs/remotes/origin/version |
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sed 's#^origin/##' |
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sort -u
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)
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if [[ "${#version_branches[@]}" -eq 0 ]]; then
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echo "No origin/version/* branches found; nothing to backport."
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exit 0
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fi
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failures=()
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for target_branch in "${version_branches[@]}"; do
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safe_target="$(sed -E 's#[^A-Za-z0-9._-]+#-#g; s#^-+##; s#-+$##' <<< "$target_branch")"
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head_branch="backport/pr-${pr_number}-to-${safe_target}"
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existing_pr="$(api GET "${repo_path}/pulls?state=open&base_branch=$(jq -rn --arg value "$target_branch" '$value|@uri')&limit=50" |
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jq -r --arg head "$head_branch" '.[] | select(.head.ref == $head) | .number' |
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head -n 1)"
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if [[ -n "$existing_pr" ]]; then
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echo "Backport PR #${existing_pr} already exists for ${target_branch}; leaving it unchanged."
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continue
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fi
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echo "Creating ${head_branch} from ${target_branch}"
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git checkout -B "$head_branch" "origin/${target_branch}"
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for commit in "${source_commits[@]}"; do
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cherry_pick_args=(-x)
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if [[ "$(git rev-list --parents -n 1 "$commit" | wc -w)" -gt 2 ]]; then
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cherry_pick_args=(-x -m 1)
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fi
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if git cherry-pick "${cherry_pick_args[@]}" "$commit"; then
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continue
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fi
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if [[ -z "$(git status --porcelain)" ]]; then
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echo "Cherry-pick of ${commit} produced no changes; skipping it."
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git cherry-pick --skip || true
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continue
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fi
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git cherry-pick --abort || true
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failures+=("${target_branch}: cherry-pick of ${commit} failed")
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break
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done
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if [[ "${failures[*]:-}" == *"${target_branch}:"* ]]; then
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git checkout main
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continue
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fi
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if git diff --quiet "origin/${target_branch}" HEAD; then
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echo "${target_branch} already contains the change; no PR needed."
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git checkout main
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continue
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fi
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git push origin "HEAD:refs/heads/${head_branch}" --force-with-lease
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if [[ "${#source_commits[@]}" -eq 1 ]]; then
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source_text="Source commit: \`${source_commits[0]}\`"
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else
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source_text="Source commits:"
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for commit in "${source_commits[@]}"; do
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source_text="${source_text}"$'\n'"- \`${commit}\`"
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done
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fi
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body="$(cat <<BODY
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Automated backport of #${pr_number} to \`${target_branch}\` because the source PR changed \`CommonCore/\`.
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Source PR: ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/pulls/${pr_number}
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${source_text}
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This PR will be merged automatically by the Build workflow after a successful build.
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BODY
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)"
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payload="$(jq -n \
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--arg base "$target_branch" \
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--arg head "$head_branch" \
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--arg title "Backport #${pr_number} to ${target_branch}: ${pr_title}" \
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--arg body "$body" \
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'{base: $base, head: $head, title: $title, body: $body}')"
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api POST "${repo_path}/pulls" "$payload" >/dev/null
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echo "Created backport PR from ${head_branch} to ${target_branch}."
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git checkout main
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done
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if [[ "${#failures[@]}" -gt 0 ]]; then
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echo "Backport failures:"
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printf ' - %s\n' "${failures[@]}"
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exit 1
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fi
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@@ -131,3 +131,33 @@ jobs:
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ssh -i ~/.ssh/deploy_key -p "$port" "${DEPLOY_USER}@${DEPLOY_HOST}" "mkdir -p '$DEPLOY_PATH'"
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scp -i ~/.ssh/deploy_key -P "$port" deploy/* "${DEPLOY_USER}@${DEPLOY_HOST}:$DEPLOY_PATH/"
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merge-backport:
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name: Merge backport
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runs-on: ubuntu-latest
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needs: build
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if: ${{ github.event_name == 'pull_request' && startsWith(github.event.pull_request.base.ref, 'version/') && startsWith(github.event.pull_request.head.ref, 'backport/pr-') }}
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permissions:
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contents: write
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pull-requests: write
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steps:
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- name: Merge successful backport PR
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shell: bash
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env:
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GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
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run: |
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set -euo pipefail
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pr_number="$(jq -r '.number' "$GITHUB_EVENT_PATH")"
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target_branch="$(jq -r '.pull_request.base.ref' "$GITHUB_EVENT_PATH")"
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payload="$(jq -n \
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--arg title "Merge backport #${pr_number} into ${target_branch}" \
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'{Do: "merge", MergeTitleField: $title, MergeMessageField: "Automatic CommonCore backport after successful build.", delete_branch_after_merge: true}')"
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curl --fail --silent --show-error \
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-X POST \
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-H "Authorization: token ${GITEA_TOKEN}" \
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-H "Accept: application/json" \
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-H "Content-Type: application/json" \
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--data "$payload" \
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"${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/pulls/${pr_number}/merge"
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