ci: add workflow to update discovery types

.github/workflows/discovery.yaml

@@ -0,0 +1,23 @@
+on:
+  schedule:
+    - cron: '0 12 * * *'
+  pull_request:
+  workflow_dispatch:    
+name: Update Discovery Generated Types
+jobs:
+  sync:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+      - uses: actions/setup-node@60edb5dd545a775178f52524783378180af0d1f8 # v4.0.2
+        with:
+          node-version: 16
+      # Install all deps, including dev dependencies.
+      - run: npm install
+      # Generate types
+      - run: npm run types
+      # Submit pull request
+      - run: npm run submit-discovery-pr
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+

package.json

@@ -44,6 +44,7 @@
     "docs-test": "linkinator docs",
     "predocs-test": "npm run docs",
     "types": "node scripts/gen-types.js",
+    "submit-discovery-pr": "node scripts/submit-discovery-pr.js",
     "prelint": "cd samples; npm link ../; npm install",
     "precompile": "gts clean"
   },
@@ -55,7 +56,9 @@
     "arrify": "^2.0.1",
     "big.js": "^6.0.0",
     "duplexify": "^4.0.0",
+    "execa": "^5.0.0",
     "extend": "^3.0.2",
+    "gaxios": "^6.0.3",
     "is": "^3.3.0",
     "stream-events": "^1.0.5",
     "uuid": "^9.0.0"

scripts/submit-discovery-pr.js

@@ -0,0 +1,92 @@
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const execa = require('execa');
+const gaxios = require('gaxios');
+
+const REPO = 'alvarowolfx/nodejs-bigquery';
+const BRANCH = 'update-discovery/patch';
+const TRACK_PATHS = ['src/types.d.ts'];
+const COMMIT_MESSAGE = 'chore: update types from Discovery';
+const COMMIT_BODY =
+  'Automated pull-request to keep BigQuery Discovery types up-to-date.';
+
+async function submitDiscoveryPR() {
+  const statusResult = await execa('git', ['status', '--porcelain']);
+  const status = statusResult.stdout;
+  const statusFiles = status.split('\n').map(x => x.slice(3));
+
+  const foundChanges = statusFiles.filter(f => {
+    return TRACK_PATHS.some(filename => f.startsWith(filename));
+  });
+  console.log(`Changes found in ${foundChanges.length} files`);
+  console.log(foundChanges.join('\n'));
+
+  if (foundChanges.length === 0) {
+    console.log('No changes found');
+    return;
+  }
+
+  if (process.env.GITHUB_ACTIONS) {
+    await execa('git', ['config', 'user.email', '[email protected]']);
+    await execa('git', ['config', 'user.name', 'Yoshi Automation']);
+  }
+
+  await execa('git', ['checkout', '-B', BRANCH]);
+  for (const filename of foundChanges) {
+    await execa('git', ['add', filename]);
+  }
+  await execa('git', ['commit', '-m', COMMIT_MESSAGE, '-m', COMMIT_BODY]);
+  await execa('git', ['push', 'origin', BRANCH, '--force']);
+
+  const githubToken = process.env.GITHUB_TOKEN;
+  if (!githubToken) {
+    throw new Error('please include a GITHUB_TOKEN');
+  }
+
+  try {
+    // Open the pull request with the GITHUB_TOKEN
+    await gaxios.request({
+      method: 'POST',
+      headers: {
+        Authorization: `token ${githubToken}`,
+      },
+      url: `https://api.github.com/repos/${REPO}/pulls`,
+      data: {
+        title: COMMIT_MESSAGE,
+        head: BRANCH,
+        base: 'main',
+        body: COMMIT_BODY,
+      },
+    });
+  } catch (err) {
+    console.error('failed to submit Pull Request:', err);
+    if (err.response && err.response.data) {
+      if (err.response.data.errors) {
+        const errors = err.response.data.errors;
+        const exists = errors.some(err =>
+          err.message.includes('already exists')
+        );
+        if (!exists) {
+          throw err;
+        }
+        console.log('PR already exists');
+      }
+    } else {
+      throw err;
+    }
+  }
+}
+
+submitDiscoveryPR();