Document the black shim a touch
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1 changed files with 4 additions and 10 deletions
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@ -1,10 +1,9 @@
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"""A shim to black which knows how to tee output."""
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"""A shim to black which knows how to tee output for --output-file."""
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import argparse
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import argparse
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from contextlib import contextmanager
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import sys
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import sys
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from black import patched_main
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from black import patched_main, nullcontext
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parser = argparse.ArgumentParser()
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parser = argparse.ArgumentParser()
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@ -12,7 +11,7 @@ parser.add_argument("--output-file", default=None)
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class Tee(object):
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class Tee(object):
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"""Tee all I/O to a file and stdout."""
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"""Something that looks like a File/Writeable but does teed writes."""
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def __init__(self, name, mode):
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def __init__(self, name, mode):
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self._file = open(name, mode)
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self._file = open(name, mode)
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@ -38,11 +37,6 @@ class Tee(object):
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self._file.close()
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self._file.close()
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@contextmanager
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def nullctx():
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yield
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if __name__ == "__main__":
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if __name__ == "__main__":
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opts, args = parser.parse_known_args()
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opts, args = parser.parse_known_args()
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@ -50,7 +44,7 @@ if __name__ == "__main__":
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print("Teeig output....")
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print("Teeig output....")
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ctx = Tee(opts.output_file, "w")
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ctx = Tee(opts.output_file, "w")
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else:
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else:
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ctx = nullctx()
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ctx = nullcontext()
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with ctx:
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with ctx:
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sys.argv = [sys.argv[0]] + args
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sys.argv = [sys.argv[0]] + args
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