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Accept 'auto' for --jobs, and default to cpu_count(); issue #151

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Florent Xicluna 2014-05-23 15:43:52 +02:00
parent ed6d0398bc
commit f40cf8e030
1 changed files with 17 additions and 7 deletions
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24
flake8/engine.py
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@ -51,8 +51,9 @@ def get_parser():
if multiprocessing:
parser.config_options.append('jobs')
parser.add_option('-j', '--jobs', type='int', default=1,
help="number of jobs to run simultaneously")
parser.add_option('-j', '--jobs', type='string', default='',
help="number of jobs to run simultaneously, "
"or 'auto'")
parser.add_option('--exit-zero', action='store_true',
help="exit with code 0 even if there are errors")
@ -87,11 +88,20 @@ def get_style_guide(**kwargs):
for options_hook in options_hooks:
options_hook(options)
if multiprocessing and options.jobs > 1:
reporter = BaseQReport if options.quiet else QueueReport
report = styleguide.init_report(reporter)
report.input_file = styleguide.input_file
styleguide.runner = report.task_queue.put
if multiprocessing and options.jobs:
if options.jobs.isdigit():
n_jobs = int(options.jobs)
else:
try:
n_jobs = multiprocessing.cpu_count()
except NotImplementedError:
n_jobs = 1
if n_jobs > 1:
options.jobs = n_jobs
reporter = BaseQReport if options.quiet else QueueReport
report = styleguide.init_report(reporter)
report.input_file = styleguide.input_file
styleguide.runner = report.task_queue.put
return styleguide