chore: automate compat-data update

.github/workflows/update-compat-data.yml

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+name: Update compat data
+env:
+  YARN_ENABLE_SCRIPTS: false # disable post-install scripts
+on:
+  workflow_dispatch:
+    inputs: {}
+  schedule:
+    - cron: "0 0 * * 5"
+
+jobs:
+  createPullRequest:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
+        with:
+          repository: kangax/compat-table
+          path: packages/babel-compat-data/build/compat-table
+      - name: Use Node.js latest
+        uses: actions/setup-node@v2-beta
+        with:
+          node-version: "*"
+      - name: Get latest kangax/compat-data commit
+        id: lastCommit
+        run: echo "::set-output name=sha1::$(node ./scripts/update-compat-data/get-last-commit.sh)"
+      - name: Compare last kangax/compat-data commit with current one
+        run: echo ${{ steps.lastCommit.outputs.sha1 }} | node ./scripts/update-compat-data/compare-with-current-commit.js
+      - name: Update compat-data commit
+        run: echo ${{ steps.lastCommit.outputs.sha1 }} | ./scripts/update-compat-data/bump-data-compat-version.sh
+      - name: Run update script
+        run: make build-compat-data
+      - name: Commit changes
+        run: |
+          git config user.name "Babel Bot"
+          git config user.email "babel-bot@users.noreply.github.com"
+          git checkout -b update-compat-data
+          git commit -am "chore: update compat data to ${{ steps.lastCommit.outputs.sha1 }}"
+          git push --force origin update-compat-data
+      - name: Create Pull Request
+        uses: actions/github-script@v4
+        with:
+          github-token: ${{ secrets.BOT_TOKEN }}
+          script: |
+            const base = process.env.GITHUB_REF.replace("refs/heads/", "");
+            const requestParam = {
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              head: context.repo.owner + ":update-compat-data",
+              base: base,
+              state: "open"
+            };
+            const result = await github.pulls.list(requestParam);
+            console.log("Open PR request: ", requestParam);
+            console.log("Open PR response: ", result);
+            const prs = result.data;
+            if (prs.length === 0) {
+              const requestParam = {
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                head: "update-compat-data",
+                base: base,
+                maintainer_can_modify: true,
+                title: "Update compat data",
+                body: "Update compat data to [${{ steps.lastCommit.outputs.sha1 }}](https://github.com/kangax/compat-table/commit/${{ steps.lastCommit.outputs.sha1 }}).",
+              };
+              const result = await github.pulls.create(requestParam);
+              console.log("Create PR request: ", requestParam)
+              console.log("Create PR response: ", result);
+
+              github.issues.addLabels({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: result.data.number,
+                labels: ["area: compat-data", "repo automation :robot:"]
+              })
+            }
+
+

scripts/update-compat-data/bump-data-compat-version.sh

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+#!/bin/sh
+# read given commit SHA1 from stdin, update to COMPAT_TABLE_COMMIT in download-compat-table.sh
+# usage:
+# node ./scripts/update-compat-data/get-last-commit.js | sh ./scripts/update-compat-data/bump-data-compat-version.sh
+
+set -e
+perl -i -pe 's/^COMPAT_TABLE_COMMIT.+$/COMPAT_TABLE_COMMIT='$(cat)'/' ./packages/babel-compat-data/download-compat-table.sh

scripts/update-compat-data/compare-with-current-commit.js

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+import { readFile } from "fs/promises";
+import path from "path";
+import { fileURLToPath } from "url";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const CURRENT_COMMIT_VARIABLE_NAME = "COMPAT_TABLE_COMMIT";
+
+async function getCurrentCommit() {
+  const target = path.join(
+    __dirname,
+    "..",
+    "..",
+    "packages",
+    "babel-compat-data",
+    "scripts",
+    "download-compat-table.sh"
+  );
+  const lines = (await readFile(target, { encoding: "utf-8" })).split("\n");
+
+  for (const line of lines) {
+    if (line.includes(CURRENT_COMMIT_VARIABLE_NAME)) {
+      return line.split("=").at(1);
+    }
+  }
+
+  return undefined;
+}
+
+async function checkCurrentCommit(lastCommit) {
+  if (typeof lastCommit !== "string") {
+    throw new Error(`Last commit should be provided but got ${lastCommit}`);
+  }
+
+  const currentCommit = await getCurrentCommit();
+  if (typeof lastCommit !== "string") {
+    throw new Error("Not valid current commit found: ${currentCommit}");
+  }
+
+  console.log("last commit :", lastCommit);
+  console.log("current commit :", currentCommit);
+
+  if (lastCommit === currentCommit) {
+    throw new Error("compat-data doesn't need to be updated");
+  }
+
+  return lastCommit;
+}
+
+checkCurrentCommit(process.argv[2]).then(console.log);

scripts/update-compat-data/get-last-commit.sh

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+ set -e
+ export GIT_DIR=./packages/babel-compat-data/build/compat-table
+ git fetch -q origin HEAD
+ git rev-parse FETCH_HEAD