67 lines
2.0 KiB
Python
Executable File
67 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python2
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# Check files for whitespace problems
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#
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# Copyright (C) 2018 Kevin O'Connor <kevin@koconnor.net>
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#
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# This file may be distributed under the terms of the GNU GPLv3 license.
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import sys, os.path, unicodedata
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HaveError = False
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def report_error(filename, lineno, msg):
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global HaveError
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if not HaveError:
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sys.stderr.write("\n\nERROR:\nERROR: White space errors\nERROR:\n")
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HaveError = True
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sys.stderr.write("%s:%d: %s\n" % (filename, lineno + 1, msg))
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def check_file(filename):
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# Open and read file
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try:
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f = open(filename, 'rb')
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data = f.read()
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f.close()
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except IOError:
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return
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if not data:
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# Empty files are okay
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return
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# Do checks
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lineno = 0
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for lineno, line in enumerate(data.split('\n')):
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# Verify line is valid utf-8
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try:
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line = line.decode('utf-8')
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except UnicodeDecodeError:
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report_error(filename, lineno, "Found non utf-8 character")
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continue
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# Check for control characters
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for c in line:
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if unicodedata.category(c).startswith('C'):
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char_name = repr(c)
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if c == '\t':
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if os.path.basename(filename).lower() == 'makefile':
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continue
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char_name = 'tab'
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report_error(filename, lineno, "Invalid %s character" % (
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char_name,))
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break
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# Check for trailing space
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if line.endswith(' '):
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report_error(filename, lineno, "Line has trailing spaces")
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if not data.endswith('\n'):
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report_error(filename, lineno, "No newline at end of file")
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if data.endswith('\n\n'):
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report_error(filename, lineno, "Extra newlines at end of file")
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def main():
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files = sys.argv[1:]
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for filename in files:
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check_file(filename)
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if HaveError:
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sys.stderr.write("\n\n")
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sys.exit(-1)
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if __name__ == '__main__':
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main()
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