Fix performance regression with per-file-ignores

With a large number of errors, filenames, and per-file-ignores the style guide
selection would take a significant portion of execution time
(python3 70% / python2 99.9%).

Caching the styleguide lookup by filename eliminates this bottleneck.
This commit is contained in:
Anthony Sottile 2019-01-31 09:18:17 -08:00
parent ee7081c8ce
commit c85b282b05
3 changed files with 8 additions and 9 deletions

View file

@ -28,7 +28,7 @@ requires = [
extras_require = {
":python_version<'3.4'": ['enum34'],
":python_version<'3.5'": ['typing'],
":python_version<'3.2'": ['configparser'],
":python_version<'3.2'": ['configparser', 'functools32'],
}
if int(setuptools.__version__.split('.')[0]) < 18: