[Lorenz] Create script to deploy dependency graph viewer to Firebase

Heavily based on tools/binary_size/libsupersize/upload_html_viewer.py.

Bug: 1111056
Change-Id: I71dfe9850e60a0f194ffe42896e79335f273c6d7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2333453
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Mohamed Heikal <mheikal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#794681}

tools/android/dependency_analysis/js/README.md

@@ -67,6 +67,15 @@ npm run build && npm run serve-dist
 
 **To view the visualization, open `localhost:8888/package_view.html`.**
 
+### Deploy
+The Chromium Dependency Graph Visualizer is hosted at
+https://chromium-dependency-graph.firebaseapp.com.
+
+If you are a Googler, you can see this [doc][deploy doc] for how to deploy a new
+version of the viewer.
+
+[deploy doc]: https://docs.google.com/document/d/1u4wlB2EAWNx8zkQr60CQbxDD_Ji_mgSGjhBvX6K8IdM/edit?usp=sharing
+
 ### Miscellaneous
 To run [ESLint](https://eslint.org/) on the JS and Vue files:
 ```

tools/android/dependency_analysis/upload_html_viewer.py

+#!/usr/bin/env python3
+# Copyright 2020 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+"""Deploy the Dependency Graph Viewer to Firebase hosting."""
+
+import shutil
+import subprocess
+import tempfile
+
+from pathlib import Path
+
+FIREBASE_PROJECT = 'chromium-dependency-graph'
+JS_DIR = Path(__file__).parent / 'js'
+
+
+def _Prompt(message):
+    """Prompt the user with a message and request affirmative outcome."""
+    choice = input(message + ' [y/N] ').lower()
+    return choice and choice[0] == 'y'
+
+
+def _FirebaseLogin():
+    """Login into the Firebase CLI"""
+    subprocess.check_call(['firebase', 'login'])
+
+
+def _CheckFirebaseCLI():
+    """Fail with a proper error message, if Firebase CLI is not installed."""
+    if subprocess.call(['firebase', '--version'],
+                       stdout=subprocess.DEVNULL) != 0:
+        link = 'https://firebase.google.com/docs/cli#install_the_firebase_cli'
+        raise Exception(
+            'Firebase CLI not installed or not on your PATH. Follow '
+            'the instructions at ' + link + ' to install')
+
+
+def _CheckNPM():
+    """Fail with a proper error message, if npm is not installed."""
+    if subprocess.call(['npm', '--version'], stdout=subprocess.DEVNULL) != 0:
+        link = 'https://nodejs.org'
+        raise Exception(
+            'npm not installed or not on your PATH. Either install Node.js '
+            'through your package manager or download it from ' + link + '.')
+
+
+def _BuildDist():
+    """Build distribution files."""
+    subprocess.check_call(['npm', 'run', '--prefix', JS_DIR, 'build'])
+    return JS_DIR / 'dist'
+
+
+def _FirebaseInitProjectDir(project_dir):
+    """Create a firebase.json file that is needed for deployment."""
+    project_static_dir = project_dir / 'public'
+    with open(project_dir / 'firebase.json', 'w') as f:
+        f.write("""
+{
+  "hosting": {
+    "public": "public",
+    "ignore": [
+      "firebase.json",
+      "**/README*",
+      "**/.*"
+    ]
+  }
+}
+""")
+    return project_static_dir
+
+
+def _FirebaseDeploy(project_dir):
+    """Deploy the project to firebase hosting."""
+    subprocess.check_call(['firebase', 'deploy', '-P', FIREBASE_PROJECT],
+                          cwd=project_dir)
+
+
+def _CopyDistFiles(dist_dir, project_static_dir):
+    """Copy over static files from the dist directory."""
+    shutil.copytree(dist_dir, project_static_dir)
+
+
+def main():
+    message = (
+        f"""This script builds the Clank Dependency Graph Visualizer and \
+deploys it to Firebase hosting at {FIREBASE_PROJECT}.firebaseapp.com.
+
+Please ensure you have read the instructions at //{JS_DIR}/README.md first \
+before running this.
+
+Are you sure you want to continue?""")
+
+    if not _Prompt(message):
+        print('Nothing was deployed.')
+        return
+
+    _CheckFirebaseCLI()
+    _CheckNPM()
+    _FirebaseLogin()
+    dist_dir = _BuildDist()
+    with tempfile.TemporaryDirectory(prefix='firebase-') as project_dir_str:
+        project_dir = Path(project_dir_str)
+        project_static_dir = _FirebaseInitProjectDir(project_dir)
+        shutil.copytree(dist_dir, project_static_dir)
+        _FirebaseDeploy(project_dir)
+
+
+if __name__ == '__main__':
+    main()