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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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9
pre_commit/commands/run.py
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@ -73,7 +73,7 @@ SKIPPED = 'Skipped'
NO_FILES = '(no files to check)'
def _run_single_hook(classifier, hook, args, skips, cols):
def _run_single_hook(classifier, hook, args, skips, cols, use_color):
filenames = classifier.filenames_for_hook(hook)
if hook.language == 'pcre':
@ -118,7 +118,8 @@ def _run_single_hook(classifier, hook, args, skips, cols):
sys.stdout.flush()
diff_before = cmd_output_b('git', 'diff', '--no-ext-diff', retcode=None)
retcode, out = hook.run(tuple(filenames) if hook.pass_filenames else ())
filenames = tuple(filenames) if hook.pass_filenames else ()
retcode, out = hook.run(filenames, use_color)
diff_after = cmd_output_b('git', 'diff', '--no-ext-diff', retcode=None)
file_modifications = diff_before != diff_after
@ -203,7 +204,9 @@ def _run_hooks(config, hooks, args, environ):
classifier = Classifier(filenames)
retval = 0
for hook in hooks:
retval |= _run_single_hook(classifier, hook, args, skips, cols)
retval |= _run_single_hook(
classifier, hook, args, skips, cols, args.color,
)
if retval and config['fail_fast']:
break
if retval and args.show_diff_on_failure and git.has_diff():