Fix undiscovered boto3 names in post-install script

builder/mypy_boto3_builder/templates/master/master/main.py.jinja2

@@ -127,20 +127,16 @@ def set_cache_key() -> None:
     CACHE_PATH.write_text(cache_key)
 
 
-def add_package_to_index(pypi_name: str) -> None:
+def add_package_to_index(boto3_name: str) -> None:
     """
     Add new package to index and rebuild it if package is new.
     """
-    cache_key = ""
+    installed_boto3_names: Set[str] = {boto3_name}
     if CACHE_PATH.exists():
-        cache_key = CACHE_PATH.read_text()
-
-    installed_pypi_names: Set[str] = {pypi_name}
-    for cache_key_pypi_name in cache_key.split(','):
-        installed_pypi_names.add(cache_key_pypi_name)
+        installed_boto3_names.update(CACHE_PATH.read_text().split(','))
 
     for submodule in SUBMODULES:
-        if submodule.pypi_name in installed_pypi_names:
+        if submodule.boto3_name in installed_boto3_names:
             submodule.is_installed = True
 
     build_index()

builder/mypy_boto3_builder/templates/service/setup.py.jinja2

@@ -13,7 +13,7 @@ class PostInstallCommand(install):
         print("{{ master_module_name }}: Running post-install script for {{ package.pypi_name }}")
         try:
             from {{ master_module_name }}.main import add_package_to_index
-            add_package_to_index("{{ package.pypi_name }}")
+            add_package_to_index("{{ package.boto3_name }}")
             print("{{ master_module_name }}: Package {{ package.pypi_name }} added to index")
         except Exception as e:
             print("{{ master_module_name }}: Package index update failed for {{ package.pypi_name }}:", e)