address review feedback: remove redundant root.json writes, rename docs section

Author: 1seal

docs/INSTALLATION.rst

@@ -53,8 +53,8 @@ from GitHub, change into the project root directory, and install with pip
    python3 -m pip install -r requirements/dev.txt
 
 
-Bootstrap root metadata
------------------------
+Application deployment
+----------------------
 
 The initial trusted root metadata (``root.json``) is the trust anchor for all
 subsequent metadata verification. Applications should deploy a trusted root

tests/test_updater_consistent_snapshot.py

@@ -74,10 +74,6 @@ def _init_repo(
         sim.publish_root()
         sim.prefix_targets_with_hash = prefix_targets
 
-        # Init trusted root with the latest consistent_snapshot
-        with open(os.path.join(self.metadata_dir, "root.json"), "bw") as f:
-            f.write(sim.signed_roots[-1])
-
         return sim
 
     def _init_updater(self) -> Updater:

tests/test_updater_delegation_graphs.py

@@ -120,10 +120,6 @@ def _init_repo(self, test_case: DelegationsTestCase) -> None:
 
     def _init_updater(self) -> Updater:
         """Create a new Updater instance"""
-        # Init trusted root for Updater
-        with open(os.path.join(self.metadata_dir, "root.json"), "bw") as f:
-            f.write(self.sim.signed_roots[0])
-
         return Updater(
             self.metadata_dir,
             "https://example.com/metadata/",

tests/test_updater_fetch_target.py

@@ -40,10 +40,8 @@ def setUp(self) -> None:
         os.mkdir(self.metadata_dir)
         os.mkdir(self.targets_dir)
 
-        # Setup the repository, bootstrap client root.json
+        # Setup the repository
         self.sim = RepositorySimulator()
-        with open(os.path.join(self.metadata_dir, "root.json"), "bw") as f:
-            f.write(self.sim.signed_roots[0])
 
         if self.dump_dir is not None:
             # create test specific dump directory

tests/test_updater_key_rotations.py

@@ -72,8 +72,6 @@ def _run_refresh(self) -> None:
 
         # bootstrap with initial root
         self.metadata_dir = tempfile.mkdtemp(dir=self.temp_dir.name)
-        with open(os.path.join(self.metadata_dir, "root.json"), "bw") as f:
-            f.write(self.sim.signed_roots[0])
 
         updater = Updater(
             self.metadata_dir,

tests/test_updater_validation.py

@@ -23,10 +23,8 @@ def setUp(self) -> None:
         os.mkdir(self.metadata_dir)
         os.mkdir(self.targets_dir)
 
-        # Setup the repository, bootstrap client root.json
+        # Setup the repository
         self.sim = RepositorySimulator()
-        with open(os.path.join(self.metadata_dir, "root.json"), "bw") as f:
-            f.write(self.sim.signed_roots[0])
 
     def tearDown(self) -> None:
         self.temp_dir.cleanup()