refactor: improve types readability + CI job for formatting

.github/workflows/ci.yaml

@@ -84,3 +84,23 @@ jobs:
         with:
           name: reference-docs
           path: ./docs/build/
+
+  format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+      - name: Install dependencies
+        run: |
+          python3.10 -m venv venv
+          source venv/bin/activate 
+          pip3 install --upgrade pip 
+          python3.10 -m pip install -r requirements.txt
+          python3.10 setup.py install
+      - name: Check Formatting
+        run: |
+          source venv/bin/activate
+          yapf -d -r -p .

docs/theme/devsite_translator/html.py

@@ -15,13 +15,14 @@
 
 from sphinx.writers import html
 
-
-_DESCTYPE_NAMES = {'class': 'Classes',
-                   'data': 'Constants',
-                   'function': 'Functions',
-                   'method': 'Methods',
-                   'attribute': 'Attributes',
-                   'exception': 'Exceptions'}
+_DESCTYPE_NAMES = {
+    'class': 'Classes',
+    'data': 'Constants',
+    'function': 'Functions',
+    'method': 'Methods',
+    'attribute': 'Attributes',
+    'exception': 'Exceptions'
+}
 
 # Use the default translator for these node types
 _RENDER_WITH_DEFAULT = ['method', 'staticmethod', 'attribute']
@@ -48,12 +49,14 @@ def visit_desc(self, node):
         if node.parent.tagname == 'section':
             self.insert_header = True
             if node['desctype'] != self.current_section:
-                self.body.append(f"<h2>{_DESCTYPE_NAMES[node['desctype']]}</h2>")
+                self.body.append(
+                    f"<h2>{_DESCTYPE_NAMES[node['desctype']]}</h2>")
                 self.current_section = node['desctype']
         if node['desctype'] in _RENDER_WITH_DEFAULT:
             html.HTMLTranslator.visit_desc(self, node)
         else:
-            self.body.append(self.starttag(node, 'table', CLASS=node['objtype']))
+            self.body.append(self.starttag(node, 'table',
+                                           CLASS=node['objtype']))
 
     def depart_desc(self, node):
         if node['desctype'] in _RENDER_WITH_DEFAULT:
@@ -68,7 +71,8 @@ def visit_desc_signature(self, node):
             self.body.append('<tr>')
             self.body.append(self.starttag(node, 'th'))
             if self.insert_header:
-                self.body.append(f"<h3 class=\"sphinx-hidden\">{node['fullname']}</h3>")
+                self.body.append(
+                    f"<h3 class=\"sphinx-hidden\">{node['fullname']}</h3>")
                 self.insert_header = False
 
     def depart_desc_signature(self, node):

pyproject.toml

@@ -12,3 +12,12 @@ pythonpath = [
 
     [tool.coverage.report]
     skip_empty = true
+[tool.yapf]
+based_on_style = "google"
+indent_width = 4
+[tool.yapfignore]
+ignore_patterns = [
+  "venv",
+  "build",
+  "dist",
+]

requirements.txt

@@ -6,4 +6,6 @@ pylint>=2.16.1
 pytest-cov>=3.0.0
 mypy>=1.0.0
 sphinx>=6.1.3
-sphinxcontrib-napoleon>=0.7
+sphinxcontrib-napoleon>=0.7
+yapf>=0.32.0
+toml>=0.10.2

setup.py

@@ -11,8 +11,6 @@
 # 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.
-
-
 """
 Setup for Firebase Functions Python.
 """

src/firebase_functions/__init__.py

@@ -11,8 +11,6 @@
 # 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.
-
-
 """
 Firebase Functions for Python.
 """

src/firebase_functions/core.py

@@ -11,8 +11,6 @@
 # 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.
-
-
 """
 Public code that is shared across modules.
 """
@@ -64,4 +62,3 @@ class CloudEvent(_typing.Generic[T]):
     """
     The resource, provided by source, that this event relates to
     """
-

src/firebase_functions/https_fn.py

@@ -233,7 +233,7 @@ class HttpsError(Exception):
     determines the HTTP status code of the response.
     """
 
-    details: _typing.Optional[_typing.Any] = None
+    details: _typing.Any | None = None
     """
     Extra data to be converted to JSON and included in the error response.
     """
@@ -247,7 +247,7 @@ def __init__(
         self,
         code: FunctionsErrorCode,
         message: str,
-        details: _typing.Optional[_typing.Any] = None,
+        details: _typing.Any | None = None,
     ):
         self.code = code
         self.message = message
@@ -326,17 +326,17 @@ class CallableRequest(_typing.Generic[_core.T]):
     The raw request handled by the callable.
     """
 
-    app: _typing.Optional[AppCheckData] = None
+    app: AppCheckData | None = None
     """
     The result of decoding and verifying a Firebase AppCheck token.
     """
 
-    auth: _typing.Optional[AuthData] = None
+    auth: AuthData | None = None
     """"
     The result of decoding and verifying a Firebase Auth ID token.
     """
 
-    instance_id_token: _typing.Optional[str] = None
+    instance_id_token: str | None = None
     """
     An unverified token for a Firebase Instance ID.
     """

src/firebase_functions/options.py

@@ -325,7 +325,7 @@ class PubSubOptions(RuntimeOptions):
     Internal use only.
     """
 
-    retry: _typing.Optional[bool] = None
+    retry: bool | None = None
     """
     Whether failed executions should be delivered again.
     """
@@ -364,7 +364,7 @@ class StorageOptions(RuntimeOptions):
     Internal use only.
     """
 
-    bucket: _typing.Optional[str] = None
+    bucket: str | None = None
     """
     The name of the bucket to watch for Storage events.
     """
@@ -416,7 +416,7 @@ class DatabaseOptions(RuntimeOptions):
     Examples: '/foo/bar', '/foo/{bar}'
     """
 
-    instance: _typing.Optional[str] = None
+    instance: str | None = None
     """
     Specify the handler to trigger on a database instance(s).
     If present, this value can either be a single instance or a pattern.
@@ -471,7 +471,7 @@ class HttpsOptions(RuntimeOptions):
     Invoker to set access control on https functions.
     """
 
-    cors: _typing.Optional[CorsOptions] = None
+    cors: CorsOptions | None = None
     """
     Optionally set CORS options for Https functions.
     """

src/firebase_functions/params.py

@@ -104,7 +104,7 @@ class SelectOptions(_typing.Generic[_T]):
     value: _T
     """The value of the option."""
 
-    label: _typing.Optional[str] = None
+    label: str | None = None
     """The displayed label for the option."""
 
 
@@ -127,18 +127,18 @@ class TextInput:
     validation_regex, if present, will be retried.
     """
 
-    example: _typing.Optional[str] = None
+    example: str | None = None
     """
     An example of the input required that will be displayed alongside the input prompt.
     """
 
-    validation_regex: _typing.Optional[str] = None
+    validation_regex: str | None = None
     """
     Validation regex for the input.
     Input that does not match this regex, if present, will be retried.
     """
 
-    validation_error_message: _typing.Optional[str] = None
+    validation_error_message: str | None = None
     """
     An error message that is displayed to the user if validation_regex fails.
     """
@@ -169,29 +169,28 @@ class Param(Expression[_T]):
     The environment variable of this parameter. Must be upper case.
     """
 
-    default: _typing.Optional[_T] = None
+    default: _T | None = None
     """
     The default value to assign to this param if none provided.
     """
 
-    label: _typing.Optional[str] = None
+    label: str | None = None
     """
     A label that is displayed to the user for this param.
     """
 
-    description: _typing.Optional[str] = None
+    description: str | None = None
     """
     Description of this param that is displayed to the user.
     """
 
-    immutable: _typing.Optional[bool] = None
+    immutable: bool | None = None
     """
     Whether the value of this parameter can change between function
     deployments.
     """
 
-    input: _typing.Union[TextInput, ResourceInput,
-                         SelectInput[_T]] = TextInput()
+    input: TextInput | ResourceInput | SelectInput[_T] = TextInput()
     """
     The type of input that is required for this param, e.g. TextInput.
     """
@@ -233,17 +232,17 @@ class SecretParam(Expression[str]):
     The environment variable of this parameter. Must be upper case.
     """
 
-    label: _typing.Optional[str] = None
+    label: str | None = None
     """
     A label that is displayed to the user for this param.
     """
 
-    description: _typing.Optional[str] = None
+    description: str | None = None
     """
     Description of this param that is displayed to the user.
     """
 
-    immutable: _typing.Optional[bool] = None
+    immutable: bool | None = None
     """
     Whether the value of this parameter can change between function
     deployments.

src/firebase_functions/private/__init__.py

@@ -11,8 +11,6 @@
 # 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.
-
-
 """
 Firebase Functions for Python - Private/Internals
 """

src/firebase_functions/private/manifest.py

@@ -94,29 +94,28 @@ class VpcSettings(_typing.TypedDict):
 class ManifestEndpoint:
     """A definition of a function as appears in the Manifest."""
 
-    entryPoint: _typing.Optional[str] = None
-    region: _typing.Optional[list[str]] = _dataclasses.field(
-        default_factory=list[str])
-    platform: _typing.Optional[str] = "gcfv2"
+    entryPoint: str | None = None
+    region: list[str] | None = _dataclasses.field(default_factory=list[str])
+    platform: str | None = "gcfv2"
     availableMemoryMb: int | _params.Expression[
         int] | _util.Sentinel | None = None
     maxInstances: int | _params.Expression[int] | _util.Sentinel | None = None
     minInstances: int | _params.Expression[int] | _util.Sentinel | None = None
     concurrency: int | _params.Expression[int] | _util.Sentinel | None = None
-    serviceAccountEmail: _typing.Optional[str | _util.Sentinel] = None
+    serviceAccountEmail: str | _util.Sentinel | None = None
     timeoutSeconds: int | _params.Expression[int] | _util.Sentinel | None = None
     cpu: int | str | _util.Sentinel | None = None
-    vpc: _typing.Optional[VpcSettings] = None
-    labels: _typing.Optional[dict[str, str]] = None
-    ingressSettings: _typing.Optional[str] | _util.Sentinel = None
-    secretEnvironmentVariables: _typing.Optional[
-        list[SecretEnvironmentVariable] | _util.Sentinel] = _dataclasses.field(
+    vpc: VpcSettings | None = None
+    labels: dict[str, str] | None = None
+    ingressSettings: str | None | _util.Sentinel = None
+    secretEnvironmentVariables: list[
+        SecretEnvironmentVariable] | _util.Sentinel | None = _dataclasses.field(
             default_factory=list[SecretEnvironmentVariable])
-    httpsTrigger: _typing.Optional[HttpsTrigger] = None
-    callableTrigger: _typing.Optional[CallableTrigger] = None
-    eventTrigger: _typing.Optional[EventTrigger] = None
-    scheduleTrigger: _typing.Optional[ScheduleTrigger] = None
-    blockingTrigger: _typing.Optional[BlockingTrigger] = None
+    httpsTrigger: HttpsTrigger | None = None
+    callableTrigger: CallableTrigger | None = None
+    eventTrigger: EventTrigger | None = None
+    scheduleTrigger: ScheduleTrigger | None = None
+    blockingTrigger: BlockingTrigger | None = None
 
 
 class ManifestRequiredApi(_typing.TypedDict):

src/firebase_functions/private/util.py

@@ -108,7 +108,7 @@ def _on_call_valid_method(request: _Request) -> bool:
 
 def _on_call_valid_content_type(request: _Request) -> bool:
     """Validate content"""
-    content_type: _typing.Optional[str] = request.headers.get("Content-Type")
+    content_type: str | None = request.headers.get("Content-Type")
 
     if content_type is None:
         _logging.warning("Request is missing Content-Type.", content_type)
@@ -159,9 +159,9 @@ class _OnCallTokenVerification:
     """
 
     app: OnCallTokenState = OnCallTokenState.INVALID
-    app_token: _typing.Optional[dict[str, _typing.Any]] = None
+    app_token: dict[str, _typing.Any] | None = None
     auth: OnCallTokenState = OnCallTokenState.INVALID
-    auth_token: _typing.Optional[dict] = None
+    auth_token: dict | None = None
 
     def as_dict(self) -> dict:
         """Set dictionary"""
@@ -256,7 +256,7 @@ class FirebaseConfig():
     initialize a firebase App.
     """
 
-    storage_bucket: _typing.Optional[str]
+    storage_bucket: str | None
     """
     The name of the Google Cloud Storage bucket used for storing application data.
     This is the bucket name without any prefixes or additions (without "gs://").

src/firebase_functions/pubsub_fn.py

@@ -61,7 +61,7 @@ class Message(_typing.Generic[T]):
     """
 
     @property
-    def json(self) -> _typing.Optional[T]:
+    def json(self) -> T | None:
         try:
             if self.data is not None:
                 return _json.loads(_base64.b64decode(self.data).decode("utf-8"))