1 files changed, 61 insertions, 0 deletions
diff --git a/scripts/generate-git-commit-info.js b/scripts/generate-git-commit-info.js
new file mode 100644
index 00000000..f046a7fb
--- /dev/null
+++ b/scripts/generate-git-commit-info.js
@@ -0,0 +1,61 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+//
+// 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
+//
+//     http://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.
+
+import { execSync } from 'child_process';
+import { existsSync, mkdirSync, writeFileSync } from 'fs';
+import { join } from 'path';
+
+const root = join(import.meta.dirname, '..');
+const generatedDir = join(root, 'packages/cli/src/generated');
+const gitCommitFile = join(generatedDir, 'git-commit.ts');
+let gitCommitInfo = 'N/A';
+
+if (!existsSync(generatedDir)) {
+  mkdirSync(generatedDir, { recursive: true });
+}
+
+try {
+  const gitHash = execSync('git rev-parse --short HEAD', {
+    encoding: 'utf-8',
+  }).trim();
+  if (gitHash) {
+    gitCommitInfo = gitHash;
+    const gitStatus = execSync('git status --porcelain', {
+      encoding: 'utf-8',
+    }).trim();
+    if (gitStatus) {
+      gitCommitInfo = `${gitHash} (local modifications)`;
+    }
+  }
+} catch {
+  // ignore
+}
+
+const fileContent = `/**
+ * @license
+ * Copyright ${new Date().getFullYear()} Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// This file is auto-generated by the build script (scripts/build.js)
+// Do not edit this file manually.
+export const GIT_COMMIT_INFO = '${gitCommitInfo}';
+`;
+
+writeFileSync(gitCommitFile, fileContent);