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55 lines
1.4 KiB
Python
Executable File
55 lines
1.4 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Usage: check_trailing_whitespaces.py [root]
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This script will check the presence of trailing whitespaces in any file
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below |root|. It will return 0 if none is found. Otherwise, it will print the
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path of the violating file and return an error code.
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If root is not specified, it will use the current directory.
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"""
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import os
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import re
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import sys
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TRAILING_SEQUENCE = re.compile(r'[ \t][\r\n]')
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def has_trailing_whitespace(path):
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""" Returns whether |path| has trailing whitespace. """
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if os.path.isfile(path):
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with open(path, 'r') as handle:
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for line in handle:
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m = TRAILING_SEQUENCE.search(line)
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if m:
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return True
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return False
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if len(sys.argv) > 2:
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sys.exit('Usage: {} [root]'.format(sys.argv[0]))
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top = os.getcwd()
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if len(sys.argv) == 2:
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top = os.path.join(top, sys.argv[1])
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count = 0
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offending_files = []
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for root, dirs, files in os.walk(top):
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for f in files:
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if f.endswith(('.py', '.lua', '.h', '.cpp', '.cc', '.c')):
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count += 1
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path = os.path.join(root, f)
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if has_trailing_whitespace(path):
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offending_files.append(path)
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print('Checked {} files'.format(count))
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if offending_files:
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print('Found files with trailing whitespace:')
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for path in offending_files:
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print(path)
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sys.exit(1)
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sys.exit(0)
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