feat: (nodejs) read repo_name and package_name from package.json

synthtool/gcp/common.py

@@ -14,7 +14,7 @@
 
 from pathlib import Path
 
-from synthtool.sources import templates
+from synthtool.sources import templates, node_package
 from synthtool import _tracked_paths
 
 _TEMPLATES_DIR = Path(__file__).parent / "templates"
@@ -27,9 +27,10 @@ def __init__(self):
     def py_library(self) -> Path:
         raise NotImplemented()
 
-    def node_library(self, package_name, repo_name) -> Path:
+    def node_library(self, **kwargs) -> Path:
+        metadata = node_package.read_metadata()
         t = templates.TemplateGroup(_TEMPLATES_DIR / "node_library")
-        result = t.render(package_name=package_name, repo_name=repo_name)
+        result = t.render(**{**metadata, **kwargs})
         _tracked_paths.add(result)
         return result
 

synthtool/sources/node_package.py

@@ -0,0 +1,37 @@
+# Copyright 2018 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.
+
+import json
+
+
+def read_metadata():
+    """
+    read package name and repository in package.json from a Node library.
+
+    Returns:
+        package_name: Name of the package (with scope)
+        repo_name: Name of the repository
+    """
+    with open('./package.json') as f:
+        data = json.load(f)
+
+        package_name = data['name']
+        repo_name = data['repository']
+
+        if package_name is None:
+            raise RuntimeError("package.json is missing name field")
+        if repo_name is None:
+            raise RuntimeError("package.json is missing repository field")
+
+        return {'package_name': package_name, 'repo_name': repo_name}