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show color in hook outputs when attached to a tty

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This commit is contained in:
Anthony Sottile 2019-10-12 15:57:40 -07:00
parent c8620f35e1
commit 7c3404ef1f
27 changed files with 200 additions and 76 deletions
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5
pre_commit/xargs.py
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@ -13,6 +13,7 @@ import six
from pre_commit import parse_shebang
from pre_commit.util import cmd_output_b
from pre_commit.util import cmd_output_p
def _environ_size(_env=None):
@ -108,9 +109,11 @@ def xargs(cmd, varargs, **kwargs):
negate: Make nonzero successful and zero a failure
target_concurrency: Target number of partitions to run concurrently
"""
color = kwargs.pop('color', False)
negate = kwargs.pop('negate', False)
target_concurrency = kwargs.pop('target_concurrency', 1)
max_length = kwargs.pop('_max_length', _get_platform_max_length())
cmd_fn = cmd_output_p if color else cmd_output_b
retcode = 0
stdout = b''
@ -122,7 +125,7 @@ def xargs(cmd, varargs, **kwargs):
partitions = partition(cmd, varargs, target_concurrency, max_length)
def run_cmd_partition(run_cmd):
return cmd_output_b(
return cmd_fn(
*run_cmd, retcode=None, stderr=subprocess.STDOUT, **kwargs
)