diff --git a/.github/actions/copy-issue-labels-to-pr.py b/.github/actions/copy-issue-labels-to-pr.py new file mode 100644 index 0000000000..2dd23bb278 --- /dev/null +++ b/.github/actions/copy-issue-labels-to-pr.py @@ -0,0 +1,67 @@ +#!/usr/bin/python3 +# SPDX-License-Identifier: Apache-2.0 + +import itertools +import json +import re +import sys +from github import Github + +# We don't want to copy all labels on linked issues; only those in this subset. +COPYABLE_LABELS = { + "enhancement", + "documentation" +} + +# Returns a pull request extracted from Github's event JSON. +def get_pr(event): + # --- Extract PR from event JSON --- + # `check_run`/`check_suite` does not include any direct reference to the PR + # that triggered it in its event JSON. We have to extrapolate it using the head + # SHA that *is* there. + + # Get head SHA from event JSON + pr_head_sha = event["check_suite"]["head_sha"] + + # Find the repo PR that matches the head SHA we found + return {pr.head.sha: pr for pr in repo.get_pulls()}[pr_head_sha] + +# Get all issue numbers related to a PR. +def get_related_issues(pr): + # Regex to pick out closing keywords. + regex = re.compile("(close[sd]?|fix|fixe[sd]?|resolve[sd]?)\s*:?\s+#(\d+)", re.I) + + # Extract all associated issues from closing keyword in PR + for verb, num in regex.findall(pr.body): + yield int(num) + + # Extract all associated issues from PR commit messages + for c in pr.get_commits(): + for verb, num in regex.findall(c.commit.message): + yield int(num) + +# Get inputs from shell +(token, repository, path) = sys.argv[1:4] + +# Initialize repo +repo = Github(token).get_repo(repository) + +# Open Github event JSON +with open(path) as f: + event = json.load(f) + +# Get the PR we're working on. +pr = get_pr(event) +pr_labels = {label.name for label in pr.labels} + +# Get every label on every linked issue. +issues = get_related_issues(pr) +issues_labels = [repo.get_issue(n).labels for n in issues] +issues_labels = {l.name for l in itertools.chain(*issues_labels)} + +# Find the set of all labels we want to copy that aren't already set on the PR. +unset_labels = COPYABLE_LABELS & issues_labels - pr_labels + +# If there are any labels we need to add, add them. +if len(unset_labels) > 0: + pr.set_labels(*list(unset_labels)) diff --git a/.github/workflows/apply-issue-labels-to-pr.yml b/.github/workflows/apply-issue-labels-to-pr.yml new file mode 100644 index 0000000000..1f2e95aa82 --- /dev/null +++ b/.github/workflows/apply-issue-labels-to-pr.yml @@ -0,0 +1,15 @@ +name: Apply issue labels to PR + +on: + pull_request: + pull_request_target: + +jobs: + mirror-labels-to-pr: +# if: github.repository == 'opensearch-project/OpenSearch' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + + - name: Run label script + run: ../actions/copy-issue-labels-to-pr.py ${{ secrets.GITHUB_TOKEN }} $GITHUB_REPOSITORY $GITHUB_EVENT_PATH