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update_changelog.yml
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name: Update Changelog.md
on:
pull_request_target:
types:
- closed
jobs:
update-changelog:
if: github.event.pull_request.merged == true
runs-on: ubuntu-latest
permissions: write-all
steps:
- name: Checkout repository
uses: actions/checkout@v4
with:
ref: ${{ github.event.pull_request.base.ref }}
fetch-depth: 0
# Prevent later git operations from reusing the same authentication
persist-credentials: false
- name: Extract and update Changelog
id: modify-changelog
shell: python
run: |
import re
if "${{ github.event.pull_request.user.login }}" == "dependabot[bot]":
changelog = " - **Description:** ${{ github.event.pull_request.title }}\n - **Products impact:** Dev Dependency upgrade\n - **Addresses:** -\n - **Components:** -\n - **Breaking:** -\n - **Impacts a11y:** -\n - **Guidance:** -"
else:
description = """${{ github.event.pull_request.body }}"""
capture = re.compile("<!-- \[DO NOT REMOVE-USED BY GH ACTION\] CHANGELOG START -->(\n|.)+?(?=- \*\*Description)(?P<body>(\n|.)+?(?=<!-- \[DO NOT REMOVE-USED BY GH ACTION\] CHANGELOG END -->))")
match = capture.search(description)
changelog = match.groupdict()["body"].strip()
final_changelog = "<!-- [DO NOT REMOVE-USED BY GH ACTION] PASTE CHANGELOG -->\n\n"
pr_number = "${{ github.event.pull_request.number }}"
pr_link = "[#{}]".format(pr_number)
pr_link_ref = pr_link + ": ${{ github.event.pull_request.html_url }}"
for changeline in changelog.splitlines():
changeline = changeline.strip()
if not changeline:
continue
if changeline.startswith("- **Description:**"):
final_changelog += "\n" + "- " + pr_link + "\n"
final_changelog += " " + changeline + "\n"
if changeline.startswith("- **Guidance:**"):
final_changelog += "\n" + pr_link_ref + "\n"
with open("CHANGELOG.md", "r") as f:
current_changelog = f.read()
new_changelog = current_changelog.replace("<!-- [DO NOT REMOVE-USED BY GH ACTION] PASTE CHANGELOG -->", final_changelog)
with open("CHANGELOG.md", "w") as f:
f.write(new_changelog)
- uses: tibdex/github-app-token@v1
id: generate-token
with:
app_id: ${{ secrets.LE_BOT_APP_ID }}
private_key: ${{ secrets.LE_BOT_PRIVATE_KEY }}
- name: Commit updated CHANGELOG.md
run: |
git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
git config --local user.name "github-actions[bot]"
git add CHANGELOG.md
git commit -m "Update CHANGELOG.md for PR #${{ github.event.pull_request.number }}"
- name: Push changes
uses: ad-m/[email protected]
with:
github_token: ${{ steps.generate-token.outputs.token }}
branch: ${{ github.event.pull_request.base.ref }}