[Interactive] Updates for command table dump (#5283)

* Fixes #5278.

* Improve performance of az interactive dump_command_table

src/command_modules/azure-cli-backup/azure/cli/command_modules/backup/custom.py

@@ -309,7 +309,7 @@ def _should_use_original_storage_account(recovery_point, restore_to_staging_stor
                 # RP doesn't support OSA.
                 raise CLIError(
                     """
-                    This recovery point doesn’t have the capability to restore disks to their original storage
+                    This recovery point doesn't have the capability to restore disks to their original storage
                     accounts. The disks and the VM config file will be uploaded to the given storage account.
                     """)
     return use_original_storage_account

src/command_modules/azure-cli-interactive/azclishell/_dump_commands.py

@@ -26,29 +26,6 @@ def __init__(self, shell_ctx):
         self.command_table = None
         self.shell_ctx = shell_ctx
 
-    def install_modules(self):
-        installed_command_modules = []
-        for cmd in self.command_table:
-            try:
-                self.command_table[cmd].load_arguments()
-            except (ImportError, ValueError):
-                pass
-            mods_ns_pkg = import_module('azure.cli.command_modules')
-        for _, modname, _ in pkgutil.iter_modules(mods_ns_pkg.__path__):
-            if modname not in BLACKLISTED_MODS:
-                installed_command_modules.append(modname)
-
-        for mod in installed_command_modules:
-            try:
-                mod = import_module('azure.cli.command_modules.' + mod)
-                mod.load_params(mod)
-                mod.load_commands()
-
-            except Exception:  # pylint: disable=broad-except
-                # print("Error loading: {}".format(mod))
-                pass
-        self.shell_ctx.cli_ctx.invocation.commands_loader.load_arguments(None)
-
     def load_help_files(self, data):
         """ loads all the extra information from help files """
         for cmd in helps:
@@ -95,38 +72,36 @@ def load_help_files(self, data):
     def dump_command_table(self, shell_ctx):
         """ dumps the command table """
 
-        self.command_table = shell_ctx.cli_ctx.invocation.commands_loader.command_table
-        command_file = shell_ctx.config.get_help_files()
-
-        self.install_modules()
-        add_id_parameters(self.command_table)
+        loader = shell_ctx.cli_ctx.invocation.commands_loader
+        cmd_table = loader.load_command_table(None)
+        loader.load_arguments('')
 
         data = {}
-        for cmd in self.command_table:
+        for cmd in cmd_table:
             com_descrip = {}  # commands to their descriptions, examples, and parameter info
             param_descrip = {}  # parameters to their aliases, required, and descriptions
 
             try:
-                command_description = self.command_table[cmd].description
+                command_description = cmd_table[cmd].description
                 if callable(command_description):
                     command_description = command_description()
 
                 com_descrip['help'] = command_description
                 com_descrip['examples'] = ""
 
                 # checking all the parameters for a single command
-                for key in self.command_table[cmd].arguments:
+                for key in cmd_table[cmd].arguments:
                     required = ""
                     help_desc = ""
 
-                    if self.command_table[cmd].arguments[key].type.settings.get('required'):
+                    if cmd_table[cmd].arguments[key].type.settings.get('required'):
                         required = "[REQUIRED]"
-                    if self.command_table[cmd].arguments[key].type.settings.get('help'):
-                        help_desc = self.command_table[cmd].arguments[key].type.settings.get('help')
+                    if cmd_table[cmd].arguments[key].type.settings.get('help'):
+                        help_desc = cmd_table[cmd].arguments[key].type.settings.get('help')
 
                     # checking aliasing
                     name_options = []
-                    for name in self.command_table[cmd].arguments[key].options_list:
+                    for name in cmd_table[cmd].arguments[key].options_list:
                         name_options.append(name)
 
                     options = {
@@ -135,16 +110,20 @@ def dump_command_table(self, shell_ctx):
                         'help': help_desc
                     }
                     # the key is the first alias option
-                    param_descrip[self.command_table[cmd].arguments[key].options_list[0]] = options
+                    param_descrip[cmd_table[cmd].arguments[key].options_list[0]] = options
 
                 com_descrip['parameters'] = param_descrip
                 data[cmd] = com_descrip
             except (ImportError, ValueError):
                 pass
 
+        add_id_parameters(cmd_table)
         self.load_help_files(data)
 
+        self.command_table = cmd_table
+
         # dump into the cache file
+        command_file = shell_ctx.config.get_help_files()
         with open(os.path.join(get_cache_dir(shell_ctx), command_file), 'w') as help_file:
             json.dump(data, help_file)