Add website PR creation script

Author: pomber

.github/scripts/readme.md

@@ -47,6 +47,11 @@ For every push to `next`:
   - labels: `release`
 ```
 
+```
+- create a PR from 'next' to 'main' if it doesn't exist
+  - title: Update website
+```
+
 ## release-pr-merged
 
 for every `release` pr merged to `next`:

.github/scripts/website-pr.mjs

@@ -0,0 +1,37 @@
+import { Octokit } from "@octokit/action"
+import github from "@actions/github"
+import { BASE_BRANCH } from "./params.mjs"
+
+const octokit = new Octokit({})
+
+console.log("Find existing PR")
+const { data: prs } = await octokit.pulls.list({
+  ...github.context.repo,
+  state: "open",
+  base: "main",
+  head: `${github.context.repo.owner}:${BASE_BRANCH}`,
+})
+console.log("Existing PRs", prs)
+
+const title = `✨ Update website ✨`
+const body = ""
+
+if (prs.length === 0) {
+  console.log("Creating new PR")
+  await octokit.rest.pulls.create({
+    ...github.context.repo,
+    base: "main",
+    head: BASE_BRANCH,
+    title,
+    body,
+  })
+} else {
+  // console.log("Updating existing PR")
+  // const { number } = prs[0]
+  // await octokit.rest.pulls.update({
+  //   ...github.context.repo,
+  //   pull_number: number,
+  //   title,
+  //   body,
+  // })
+}

.github/workflows/push-to-next.yml

@@ -43,3 +43,32 @@ jobs:
         run: node .github/scripts/prepare-release.mjs
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  website-pr:
+    name: Update website PR
+    runs-on: ubuntu-latest
+
+    permissions:
+      pull-requests: write
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          run_install: false
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: "pnpm"
+
+      - run: pnpm install
+
+      - name: Create or update website PR
+        run: node .github/scripts/website-pr.mjs
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}