Extensions: development functionality to mark all & clear marks

- Disable enabling on install when installing marked.
  This simplifies installing many packages from a repository which can
  be useful for testing.
- Fix an error installing marked when a local-only package was marked.

scripts/addons_core/bl_pkg/bl_extension_ops.py

@@ -675,8 +675,9 @@ def _pkg_marked_by_repo(pkg_manifest_all):
         # While this should be prevented, any marked packages out of the range will cause problems, skip them.
         if repo_index >= len(pkg_manifest_all):
             continue
+        if (pkg_manifest := pkg_manifest_all[repo_index]) is None:
+            continue
 
-        pkg_manifest = pkg_manifest_all[repo_index]
         item = pkg_manifest.get(pkg_id)
         if item is None:
             continue
@@ -2713,7 +2714,7 @@ class EXTENSIONS_OT_package_mark_set(Operator):
 
 class EXTENSIONS_OT_package_mark_clear(Operator):
     bl_idname = "extensions.package_mark_clear"
-    bl_label = "Mark Package"
+    bl_label = "Clear Marked Package"
 
     pkg_id: rna_prop_pkg_id
     repo_index: rna_prop_repo_index
@@ -2725,6 +2726,37 @@ class EXTENSIONS_OT_package_mark_clear(Operator):
         return {'FINISHED'}
 
 
+class EXTENSIONS_OT_package_mark_set_all(Operator):
+    bl_idname = "extensions.package_mark_set_all"
+    bl_label = "Mark All Packages"
+
+    def execute(self, _context):
+        repo_cache_store = repo_cache_store_ensure()
+        for repo_index, (
+                pkg_manifest_remote,
+                pkg_manifest_local,
+        ) in enumerate(zip(
+            repo_cache_store.pkg_manifest_from_remote_ensure(error_fn=print),
+            repo_cache_store.pkg_manifest_from_local_ensure(error_fn=print),
+        )):
+            if pkg_manifest_remote is not None:
+                for pkg_id in pkg_manifest_remote.keys():
+                    blender_extension_mark.add((pkg_id, repo_index))
+            if pkg_manifest_local is not None:
+                for pkg_id in pkg_manifest_local.keys():
+                    blender_extension_mark.add((pkg_id, repo_index))
+        _preferences_ui_redraw()
+        return {'FINISHED'}
+
+
+class EXTENSIONS_OT_package_mark_clear_all(Operator):
+    bl_idname = "extensions.package_mark_clear_all"
+    bl_label = "Clear All Marked Packages"
+
+    def execute(self, _context):
+        blender_extension_mark.clear()
+
+
 class EXTENSIONS_OT_package_show_set(Operator):
     bl_idname = "extensions.package_show_set"
     bl_label = "Show Package Set"
@@ -3048,6 +3080,8 @@ classes = (
     EXTENSIONS_OT_package_show_clear,
     EXTENSIONS_OT_package_mark_set,
     EXTENSIONS_OT_package_mark_clear,
+    EXTENSIONS_OT_package_mark_set_all,
+    EXTENSIONS_OT_package_mark_clear_all,
     EXTENSIONS_OT_package_show_settings,
 
     EXTENSIONS_OT_package_obselete_marked,

scripts/addons_core/bl_pkg/bl_extension_ui.py

@@ -1202,8 +1202,22 @@ class USERPREF_MT_extensions_settings(Menu):
 
             layout.separator()
 
-            layout.operator("extensions.package_install_marked", text="Install Marked", icon='IMPORT')
-            layout.operator("extensions.package_uninstall_marked", text="Uninstall Marked", icon='X')
+            layout.operator("extensions.package_mark_set_all", text="Mark All")
+            layout.operator("extensions.package_mark_clear_all", text="Unmark All")
+
+            layout.separator()
+
+            layout.operator(
+                "extensions.package_install_marked",
+                text="Install Marked",
+                icon='IMPORT',
+            ).enable_on_install = False
+            layout.operator(
+                "extensions.package_uninstall_marked",
+                text="Uninstall Marked",
+                icon='X',
+            )
+
             layout.operator("extensions.package_obsolete_marked")
 
             layout.separator()

scripts/addons_core/bl_pkg/cli/blender_ext.py

@@ -2271,7 +2271,7 @@ def arg_handle_str_as_package_names(value: str) -> Sequence[str]:
 # -----------------------------------------------------------------------------
 # Argument Handlers ("build" command)
 
-def generic_arg_built_split_platforms(subparse: argparse.ArgumentParser) -> None:
+def generic_arg_build_split_platforms(subparse: argparse.ArgumentParser) -> None:
     subparse.add_argument(
         "--split-platforms",
         dest="split_platforms",
@@ -3864,7 +3864,7 @@ def argparse_create_author_build(
     generic_arg_package_source_dir(subparse)
     generic_arg_package_output_dir(subparse)
     generic_arg_package_output_filepath(subparse)
-    generic_arg_built_split_platforms(subparse)
+    generic_arg_build_split_platforms(subparse)
     generic_arg_verbose(subparse)
 
     if args_internal: