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48 lines
1.3 KiB
Python
48 lines
1.3 KiB
Python
#!/usr/bin/env python
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"""Python syntax checker with lint friendly output."""
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import sys
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ENCODING = 'utf-8'
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ERRORS = 'replace'
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Text = type(u'')
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def main():
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for path in sys.argv[1:] or sys.stdin.read().splitlines():
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with open(path, 'rb') as source_fd:
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source = source_fd.read()
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try:
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compile(source, path, 'exec', dont_inherit=True)
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except SyntaxError as ex:
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extype, message, lineno, offset = type(ex), ex.text, ex.lineno, ex.offset
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except BaseException as ex: # pylint: disable=broad-except
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extype, message, lineno, offset = type(ex), str(ex), 0, 0
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else:
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continue
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result = "%s:%d:%d: %s: %s" % (path, lineno, offset, extype.__name__, safe_message(message))
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if sys.version_info <= (3,):
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result = result.encode(ENCODING, ERRORS)
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print(result)
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def safe_message(value):
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"""Given an input value as text or bytes, return the first non-empty line as text, ensuring it can be round-tripped as UTF-8."""
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if isinstance(value, Text):
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value = value.encode(ENCODING, ERRORS)
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value = value.decode(ENCODING, ERRORS)
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value = value.strip().splitlines()[0].strip()
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return value
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if __name__ == '__main__':
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main()
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