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Add minimal code to handle --prepend-config

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Add code to handle config files specified with the --prepend-config
argument.

Options specified in prepend files get a higher precedence than flake8
defaults but a lower one than user configs. This allows to override
the defaults without affecting the behaviour of user and local config
files.

This implements a solution for issue #349
This commit is contained in:
Germain Chazot 2018-07-24 23:11:24 +01:00 • committed by Germain Chazot
parent 4aa4eef0e7
commit 4f3087b369
6 changed files with 111 additions and 45 deletions
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4
tests/integration/test_aggregator.py
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@ -26,7 +26,7 @@ def test_aggregate_options_with_config(optmanager):
"""Verify we aggregate options and config values appropriately."""
arguments = ['flake8', '--config', CLI_SPECIFIED_CONFIG, '--select',
'E11,E34,E402,W,F', '--exclude', 'tests/*']
config_finder = config.ConfigFileFinder('flake8', arguments, [])
config_finder = config.ConfigFileFinder('flake8', arguments, [], [])
options, args = aggregator.aggregate_options(
optmanager, config_finder, arguments)
@ -40,7 +40,7 @@ def test_aggregate_options_when_isolated(optmanager):
"""Verify we aggregate options and config values appropriately."""
arguments = ['flake8', '--isolated', '--select', 'E11,E34,E402,W,F',
'--exclude', 'tests/*']
config_finder = config.ConfigFileFinder('flake8', arguments, [])
config_finder = config.ConfigFileFinder('flake8', arguments, [], [])
optmanager.extend_default_ignore(['E8'])
options, args = aggregator.aggregate_options(
optmanager, config_finder, arguments)