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99 lines
2.6 KiB
Python
99 lines
2.6 KiB
Python
#!/usr/bin/env python
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#
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# Common lint functions applicable to multiple types of files.
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from __future__ import print_function
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import re
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def VerifyLineLength(filename, lines, max_length):
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"""Checks to make sure the file has no lines with lines exceeding the length
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limit.
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Args:
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filename: the file under consideration as string
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lines: contents of the file as string array
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max_length: maximum acceptable line length as number
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Returns:
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A list of tuples with format [(filename, line number, msg), ...] with any
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violations found.
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"""
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lint = []
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line_num = 1
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for line in lines:
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length = len(line.rstrip('\n'))
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if length > max_length:
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lint.append((filename, line_num,
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'Line exceeds %d chars (%d)' % (max_length, length)))
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line_num += 1
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return lint
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def VerifyTabs(filename, lines):
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"""Checks to make sure the file has no tab characters.
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Args:
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filename: the file under consideration as string
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lines: contents of the file as string array
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Returns:
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A list of tuples with format [(line_number, msg), ...] with any violations
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found.
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"""
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lint = []
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tab_re = re.compile(r'\t')
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line_num = 1
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for line in lines:
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if tab_re.match(line.rstrip('\n')):
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lint.append((filename, line_num, 'Tab found instead of whitespace'))
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line_num += 1
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return lint
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def VerifyTrailingWhitespace(filename, lines):
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"""Checks to make sure the file has no lines with trailing whitespace.
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Args:
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filename: the file under consideration as string
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lines: contents of the file as string array
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Returns:
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A list of tuples with format [(filename, line number, msg), ...] with any
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violations found.
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"""
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lint = []
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trailing_whitespace_re = re.compile(r'\s+$')
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line_num = 1
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for line in lines:
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if trailing_whitespace_re.match(line.rstrip('\n')):
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lint.append((filename, line_num, 'Trailing whitespace'))
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line_num += 1
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return lint
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class BaseLint:
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def RunOnFile(filename, lines):
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raise Exception('RunOnFile() unimplemented')
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def RunLintOverAllFiles(linter, filenames):
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"""Runs linter over the contents of all files.
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Args:
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lint: subclass of BaseLint, implementing RunOnFile()
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filenames: list of all files whose contents will be linted
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Returns:
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A list of tuples with format [(filename, line number, msg), ...] with any
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violations found.
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"""
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lint = []
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for filename in filenames:
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file = open(filename, 'r')
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if not file:
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print('Cound not open %s' % filename)
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continue
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lines = file.readlines()
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lint.extend(linter.RunOnFile(filename, lines))
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return lint
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