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BUG=b:233893248
TEST=CQ

Change-Id: I66591d7a738d241aed3290138c0f68065ab10a6d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3879174
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Alex Klein <saklein@chromium.org>
diff --git a/api/controller/dependency.py b/api/controller/dependency.py
index 3eb2884..0c332e2 100644
--- a/api/controller/dependency.py
+++ b/api/controller/dependency.py
@@ -21,124 +21,130 @@
 
 
 def AugmentDepGraphProtoFromJsonMap(json_map, graph):
-  """Augment package deps from |json_map| to graph object.
+    """Augment package deps from |json_map| to graph object.
 
-  Args:
-    json_map: the json object that stores the portage package. This is
-      generated from chromite.lib.service.dependency.GetBuildDependency()
-    graph: the proto object that represents the dependency graph (see DepGraph
-      message in chromite/api/depgraph.proto)
-  """
-  graph.sysroot.build_target.name = json_map['target_board']
-  graph.sysroot.path = json_map['sysroot_path']
-  # TODO(crbug/1081828): Drop this when no longer used.
-  graph.build_target.name = json_map['target_board']
+    Args:
+      json_map: the json object that stores the portage package. This is
+        generated from chromite.lib.service.dependency.GetBuildDependency()
+      graph: the proto object that represents the dependency graph (see DepGraph
+        message in chromite/api/depgraph.proto)
+    """
+    graph.sysroot.build_target.name = json_map["target_board"]
+    graph.sysroot.path = json_map["sysroot_path"]
+    # TODO(crbug/1081828): Drop this when no longer used.
+    graph.build_target.name = json_map["target_board"]
 
-  for data in json_map['package_deps'].values():
-    package_dep_info = graph.package_deps.add()
-    package_info_msg = package_dep_info.package_info
-    package_info_msg.package_name = data['name']
-    package_info_msg.category = data['category']
-    package_info_msg.version = data['version']
-    for dep in data['deps']:
-      cpv = package_info.parse(dep)
-      dep_package = package_dep_info.dependency_packages.add()
-      controller_util.serialize_package_info(cpv, dep_package)
+    for data in json_map["package_deps"].values():
+        package_dep_info = graph.package_deps.add()
+        package_info_msg = package_dep_info.package_info
+        package_info_msg.package_name = data["name"]
+        package_info_msg.category = data["category"]
+        package_info_msg.version = data["version"]
+        for dep in data["deps"]:
+            cpv = package_info.parse(dep)
+            dep_package = package_dep_info.dependency_packages.add()
+            controller_util.serialize_package_info(cpv, dep_package)
 
-    package_CPV = controller_util.PackageInfoToString(package_info_msg)
-    for path in json_map['source_path_mapping'][package_CPV]:
-      source_path = package_dep_info.dependency_source_paths.add()
-      source_path.path = path
+        package_CPV = controller_util.PackageInfoToString(package_info_msg)
+        for path in json_map["source_path_mapping"][package_CPV]:
+            source_path = package_dep_info.dependency_source_paths.add()
+            source_path.path = path
 
 
 def _GetBuildDependencyGraphResponse(_input_proto, output_proto, _config):
-  """Add fake dep_graph data to a successful response."""
-  output_proto.dep_graph.build_target.name = 'target_board'
+    """Add fake dep_graph data to a successful response."""
+    output_proto.dep_graph.build_target.name = "target_board"
 
 
 @faux.success(_GetBuildDependencyGraphResponse)
 @faux.empty_error
-@validate.require_each('packages', ['category', 'package_name'])
+@validate.require_each("packages", ["category", "package_name"])
 @validate.validation_complete
 def GetBuildDependencyGraph(
     input_proto: depgraph_pb2.GetBuildDependencyGraphRequest,
     output_proto: depgraph_pb2.GetBuildDependencyGraphResponse,
-    _config: api_config.ApiConfig) -> None:
-  """Create the build dependency graph.
+    _config: api_config.ApiConfig,
+) -> None:
+    """Create the build dependency graph.
 
-  Args:
-    input_proto: The input arguments message.
-    output_proto: The empty output message.
-    _config: The API call config.
-  """
-  if input_proto.HasField('sysroot'):
-    board = input_proto.sysroot.build_target.name
-    sysroot_path = input_proto.sysroot.path
-  else:
-    # TODO(crbug/1081828): stop using build_target and drop it from the proto.
-    board = input_proto.build_target.name
-    sysroot_path = build_target_lib.get_default_sysroot_path(board or None)
+    Args:
+      input_proto: The input arguments message.
+      output_proto: The empty output message.
+      _config: The API call config.
+    """
+    if input_proto.HasField("sysroot"):
+        board = input_proto.sysroot.build_target.name
+        sysroot_path = input_proto.sysroot.path
+    else:
+        # TODO(crbug/1081828): stop using build_target and drop it from the proto.
+        board = input_proto.build_target.name
+        sysroot_path = build_target_lib.get_default_sysroot_path(board or None)
 
-  packages = tuple(
-      controller_util.PackageInfoToCPV(x) for x in input_proto.packages)
+    packages = tuple(
+        controller_util.PackageInfoToCPV(x) for x in input_proto.packages
+    )
 
-  json_map, sdk_json_map = dependency.GetBuildDependency(sysroot_path, board,
-                                                         packages)
-  AugmentDepGraphProtoFromJsonMap(json_map, output_proto.dep_graph)
-  AugmentDepGraphProtoFromJsonMap(sdk_json_map, output_proto.sdk_dep_graph)
+    json_map, sdk_json_map = dependency.GetBuildDependency(
+        sysroot_path, board, packages
+    )
+    AugmentDepGraphProtoFromJsonMap(json_map, output_proto.dep_graph)
+    AugmentDepGraphProtoFromJsonMap(sdk_json_map, output_proto.sdk_dep_graph)
 
 
 def _ListResponse(_input_proto, output_proto, _config):
-  """Add fake dependency data to a successful response."""
-  package_dep = output_proto.package_deps.add()
-  package_dep.category = 'category'
-  package_dep.package_name = 'name'
+    """Add fake dependency data to a successful response."""
+    package_dep = output_proto.package_deps.add()
+    package_dep.category = "category"
+    package_dep.package_name = "name"
 
 
 @faux.success(_ListResponse)
 @faux.empty_error
-@validate.require('sysroot.build_target.name')
-@validate.exists('sysroot.path')
-@validate.require_each('src_paths', ['path'])
-@validate.require_each('packages', ['category', 'package_name'])
+@validate.require("sysroot.build_target.name")
+@validate.exists("sysroot.path")
+@validate.require_each("src_paths", ["path"])
+@validate.require_each("packages", ["category", "package_name"])
 @validate.validation_complete
-def List(input_proto: depgraph_pb2.ListRequest,
-         output_proto: depgraph_pb2.ListResponse,
-         _config: api_config.ApiConfig):
-  """Get a list of package dependencies.
+def List(
+    input_proto: depgraph_pb2.ListRequest,
+    output_proto: depgraph_pb2.ListResponse,
+    _config: api_config.ApiConfig,
+):
+    """Get a list of package dependencies.
 
-  Args:
-    input_proto: The input arguments message.
-    output_proto: The empty output message.
-    _config: The API call config.
-  """
-  sysroot_path = input_proto.sysroot.path
-  src_paths = [src_path.path for src_path in input_proto.src_paths]
-  package_deps = dependency.GetDependencies(
-      sysroot_path,
-      src_paths=src_paths,
-      packages=[
-          controller_util.deserialize_package_info(package)
-          for package in input_proto.packages
-      ],
-      include_rev_dependencies=input_proto.include_rev_deps)
-  for package in package_deps:
-    pkg_info_msg = output_proto.package_deps.add()
-    controller_util.serialize_package_info(package, pkg_info_msg)
+    Args:
+      input_proto: The input arguments message.
+      output_proto: The empty output message.
+      _config: The API call config.
+    """
+    sysroot_path = input_proto.sysroot.path
+    src_paths = [src_path.path for src_path in input_proto.src_paths]
+    package_deps = dependency.GetDependencies(
+        sysroot_path,
+        src_paths=src_paths,
+        packages=[
+            controller_util.deserialize_package_info(package)
+            for package in input_proto.packages
+        ],
+        include_rev_dependencies=input_proto.include_rev_deps,
+    )
+    for package in package_deps:
+        pkg_info_msg = output_proto.package_deps.add()
+        controller_util.serialize_package_info(package, pkg_info_msg)
 
 
 def _StubGetToolchainPathsResponse(_input_proto, output_proto, _config):
-  """Create a fake successful response for GetToolchainPaths."""
-  stub_entry = output_proto.paths.add()
-  stub_entry.path = 'src/third_party/stub-package'
+    """Create a fake successful response for GetToolchainPaths."""
+    stub_entry = output_proto.paths.add()
+    stub_entry.path = "src/third_party/stub-package"
 
 
 @faux.success(_StubGetToolchainPathsResponse)
 @faux.empty_error
 @validate.validation_complete
 def GetToolchainPaths(_input_proto, output_proto, _config):
-  """Get a list of paths that affect the toolchain."""
-  toolchain_paths = dependency.DetermineToolchainSourcePaths()
-  for p in toolchain_paths:
-    source_path = output_proto.paths.add()
-    source_path.path = p
+    """Get a list of paths that affect the toolchain."""
+    toolchain_paths = dependency.DetermineToolchainSourcePaths()
+    for p in toolchain_paths:
+        source_path = output_proto.paths.add()
+        source_path.path = p