build: get PR number

.github/workflows/release.yml

@@ -40,3 +40,24 @@ jobs:
  GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
  NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
  run: npx semantic-release
+
+ # reference:
+ # * https://docs.github.com/en/rest/pulls/pulls?apiVersion=2022-11-28#create-a-pull-request
+ # * https://docs.github.com/en/rest/guides/getting-started-with-the-rest-api?apiVersion=2022-11-28#authentication-example-for-github-actions
+ #
+ # grant PR permission to GitHub Actions: `Allow GitHub Actions to create and approve pull requests`
+ # * https://github.com/huaichaow/marked-toc-extension/settings/actions
+ - name: Create PR to main branch
+ env:
+ GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+ run: |
+ pr_number=$(gh api \
+ --method POST \
+ -H "Accept: application/vnd.github+json" \
+ -H "X-GitHub-Api-Version: 2022-11-28" \
+ /repos/huaichaow/marked-toc-extension/pulls \
+ -f title='Amazing new feature' \
+ -f body='Please pull these awesome changes in!' \
+ -f head='release/main' \
+ -f base='main' | jq '.number')
+ echo ${pr_number}