84 lines
2.3 KiB
Plaintext
84 lines
2.3 KiB
Plaintext
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#!/usr/bin/python
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#
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# by Erik Osheim
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#
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# available under the GNU GPL version 2.
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#
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# This program is designed to provide analysis of patches or diff files.
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import optparse
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import re
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import sys
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# matches the diff stanza, which have no leading identifier
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diff_re = re.compile('^[0-9a-zA-Z,]+$')
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# analyze a particular patch, which is assumed to contain multiple files
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def info(f, verbose=False):
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paths = []
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l = 0
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first = True
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for line in f:
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if first:
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if diff_re.match(line):
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paths.append(['-', 0, 0, 0, 0])
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first = False
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if diff_re.match(line):
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if not paths:
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paths.append(['-', 0, 0, 0, 0])
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paths[-1][1] += 1
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elif line.startswith('diff'):
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path = line.split()[-1]
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l = max(l, len(path))
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paths.append([path, 0, 0, 0, 0])
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elif line.startswith('Index'):
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path = line.split()[1]
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l = max(l, len(path))
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paths.append([path, 0, 0, 0, 0])
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elif line.startswith('---') or line.startswith('+++') or line.startswith('='):
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pass
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elif line.startswith('@@'):
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paths[-1][1] += 1
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elif line.startswith('+') or line.startswith('>'):
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paths[-1][2] += 1
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paths[-1][3] += 1
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elif line.startswith('-') or line.startswith('<'):
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paths[-1][2] -= 1
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paths[-1][4] += 1
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if len(paths) != 1:
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title = '%d paths' % len(paths)
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else:
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title = '1 path'
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if verbose:
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title = 'TOTAL ' + title
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else:
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l = len(title)
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totals = [0, 0, 0, 0]
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for info in paths:
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for i in range(0, 4):
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totals[i] += info[i + 1]
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lens = [len(str(n)) + 1 for n in totals[:2]]
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fmt = '%%-%ds %%%dd groups, %%+%dd lines (+%%d -%%d)' % tuple([l] + lens)
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for info in paths:
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if verbose:
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print fmt % tuple(info)
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print fmt % tuple([title] + totals)
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if __name__ == "__main__":
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op = optparse.OptionParser()
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op.add_option('-v', '--verbose', dest='verbose', action='store_true')
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opts, args = op.parse_args()
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if args:
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for arg in args:
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info(open(arg, 'r'), verbose=opts.verbose)
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else:
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info(sys.stdin, verbose=opts.verbose)
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