Remove unused 'isolated' parameter

Now that `ConfigFileFinder.ignore_config_files` attribute is used
everywhere and is constructed from the `--isolated` CLI option, the now
unused `isolated` parameters can be safely removed.

2 files changed, 3 insertions, 13 deletions

diff --git a/src/flake8/options/aggregator.py b/src/flake8/options/aggregator.py
index 58d1022..939dfb3 100644
--- a/src/flake8/options/aggregator.py
+++ b/src/flake8/options/aggregator.py
@@ -17,7 +17,6 @@ def aggregate_options(
     manager,  # type: OptionManager
     config_finder,  # type: config.ConfigFileFinder
     cli_config,  # type: Optional[str]
-    isolated,  # type: bool
     argv,  # type: List[str]
 ):  # type: (...) -> Tuple[argparse.Namespace, List[str]]
     """Aggregate and merge CLI and config file options.
@@ -29,9 +28,6 @@ def aggregate_options(
     :param str cli_config:
         Value of --config when specified at the command-line. Overrides
         all other config files.
-    :param bool isolated:
-        Determines if we should parse configuration files at all or not.
-        If running in isolated mode, we ignore all configuration files
     :param list argv:
         The list of remaining command-line argumentsthat were unknown during
         preliminary option parsing to pass to ``manager.parse_args``.
@@ -50,7 +46,7 @@ def aggregate_options(
     )
 
     # Get the parsed config
-    parsed_config = config_parser.parse(cli_config, isolated)
+    parsed_config = config_parser.parse(cli_config)
 
     # Extend the default ignore value with the extended default ignore list,
     # registered by plugins.
diff --git a/src/flake8/options/config.py b/src/flake8/options/config.py
index ead12dc..7261bcd 100644
--- a/src/flake8/options/config.py
+++ b/src/flake8/options/config.py
@@ -289,7 +289,7 @@ class MergedConfigParser(object):
 
         return config
 
-    def parse(self, cli_config=None, isolated=False):
+    def parse(self, cli_config=None):
         """Parse and return the local and user config files.
 
         First this copies over the parsed local configuration and then
@@ -299,9 +299,6 @@ class MergedConfigParser(object):
         :param str cli_config:
             Value of --config when specified at the command-line. Overrides
             all other config files.
-        :param bool isolated:
-            Determines if we should parse configuration files at all or not.
-            If running in isolated mode, we ignore all configuration files
         :returns:
             Dictionary of parsed configuration options
         :rtype:
@@ -326,7 +323,7 @@ class MergedConfigParser(object):
         return self.merge_user_and_local_config()
 
 
-def get_local_plugins(config_finder, cli_config=None, isolated=False):
+def get_local_plugins(config_finder, cli_config=None):
     """Get local plugins lists from config files.
 
     :param flake8.options.config.ConfigFileFinder config_finder:
@@ -334,9 +331,6 @@ def get_local_plugins(config_finder, cli_config=None, isolated=False):
     :param str cli_config:
         Value of --config when specified at the command-line. Overrides
         all other config files.
-    :param bool isolated:
-        Determines if we should parse configuration files at all or not.
-        If running in isolated mode, we ignore all configuration files
     :returns:
         LocalPlugins namedtuple containing two lists of plugin strings,
         one for extension (checker) plugins and one for report plugins.