upstream/mercurial-mirror Commit - r24205:abcb1ee3

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#!/usr/bin/env python

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#!/usr/bin/env python

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#

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#

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# check-code - a style and portability checker for Mercurial

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# check-code - a style and portability checker for Mercurial

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#

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#

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#

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#

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# This software may be used and distributed according to the terms of the

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# This software may be used and distributed according to the terms of the

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# GNU General Public License version 2 or any later version.

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# GNU General Public License version 2 or any later version.

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"""style and portability checker for Mercurial

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"""style and portability checker for Mercurial

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when a rule triggers wrong, do one of the following (prefer one from top):

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when a rule triggers wrong, do one of the following (prefer one from top):

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* do the work-around the rule suggests

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* do the work-around the rule suggests

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* doublecheck that it is a false match

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* doublecheck that it is a false match

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* improve the rule pattern

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* improve the rule pattern

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* add an ignore pattern to the rule (3rd arg) which matches your good line

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* add an ignore pattern to the rule (3rd arg) which matches your good line

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(you can append a short comment and match this, like: #re-raises, # no-py24)

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(you can append a short comment and match this, like: #re-raises, # no-py24)

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* change the pattern to a warning and list the exception in test-check-code-hg

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* change the pattern to a warning and list the exception in test-check-code-hg

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* ONLY use no--check-code for skipping entire files from external sources

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* ONLY use no--check-code for skipping entire files from external sources

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"""

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"""

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import re, glob, os, sys

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import re, glob, os, sys

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import keyword

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import keyword

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import optparse

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import optparse

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try:

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try:

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import re2

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import re2

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except ImportError:

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except ImportError:

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re2 = None

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re2 = None

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def compilere(pat, multiline=False):

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def compilere(pat, multiline=False):

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if multiline:

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if multiline:

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pat = '(?m)' + pat

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pat = '(?m)' + pat

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if re2:

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if re2:

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try:

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try:

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return re2.compile(pat)

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return re2.compile(pat)

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except re2.error:

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except re2.error:

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pass

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pass

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return re.compile(pat)

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return re.compile(pat)

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def repquote(m):

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def repquote(m):

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fromc = '.:'

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fromc = '.:'

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tochr = 'pq'

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tochr = 'pq'

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def encodechr(i):

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def encodechr(i):

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if i > 255:

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if i > 255:

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return 'u'

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return 'u'

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c = chr(i)

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c = chr(i)

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if c in ' \n':

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if c in ' \n':

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return c

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return c

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if c.isalpha():

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if c.isalpha():

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return 'x'

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return 'x'

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if c.isdigit():

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if c.isdigit():

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return 'n'

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return 'n'

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try:

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try:

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return tochr[fromc.find(c)]

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return tochr[fromc.find(c)]

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except (ValueError, IndexError):

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except (ValueError, IndexError):

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return 'o'

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return 'o'

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t = m.group('text')

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t = m.group('text')

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tt = ''.join(encodechr(i) for i in xrange(256))

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tt = ''.join(encodechr(i) for i in xrange(256))

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t = t.translate(tt)

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t = t.translate(tt)

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return m.group('quote') + t + m.group('quote')

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return m.group('quote') + t + m.group('quote')

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def reppython(m):

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def reppython(m):

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comment = m.group('comment')

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comment = m.group('comment')

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if comment:

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if comment:

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l = len(comment.rstrip())

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l = len(comment.rstrip())

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return "#" * l + comment[l:]

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return "#" * l + comment[l:]

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return repquote(m)

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return repquote(m)

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def repcomment(m):

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def repcomment(m):

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return m.group(1) + "#" * len(m.group(2))

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return m.group(1) + "#" * len(m.group(2))

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def repccomment(m):

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def repccomment(m):

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t = re.sub(r"((?<=\n) )|\S", "x", m.group(2))

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t = re.sub(r"((?<=\n) )|\S", "x", m.group(2))

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return m.group(1) + t + "*/"

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return m.group(1) + t + "*/"

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def repcallspaces(m):

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def repcallspaces(m):

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t = re.sub(r"\n\s+", "\n", m.group(2))

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t = re.sub(r"\n\s+", "\n", m.group(2))

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return m.group(1) + t

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return m.group(1) + t

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def repinclude(m):

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def repinclude(m):

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return m.group(1) + "<foo>"

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return m.group(1) + "<foo>"

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def rephere(m):

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def rephere(m):

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t = re.sub(r"\S", "x", m.group(2))

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t = re.sub(r"\S", "x", m.group(2))

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return m.group(1) + t

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return m.group(1) + t

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testpats = [

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testpats = [

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[

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[

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(r'pushd|popd', "don't use 'pushd' or 'popd', use 'cd'"),

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(r'pushd|popd', "don't use 'pushd' or 'popd', use 'cd'"),

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(r'\W\$?$\([^$\n]*\)\)', "don't use (()) or $(()), use 'expr'"),

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(r'\W\$?$\([^$\n]*\)\)', "don't use (()) or $(()), use 'expr'"),

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(r'grep.*-q', "don't use 'grep -q', redirect to /dev/null"),

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(r'grep.*-q', "don't use 'grep -q', redirect to /dev/null"),

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(r'(?<!hg )grep.*-a', "don't use 'grep -a', use in-line python"),

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(r'(?<!hg )grep.*-a', "don't use 'grep -a', use in-line python"),

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(r'sed.*-i', "don't use 'sed -i', use a temporary file"),

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(r'sed.*-i', "don't use 'sed -i', use a temporary file"),

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(r'\becho\b.*\\n', "don't use 'echo \\n', use printf"),

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(r'\becho\b.*\\n', "don't use 'echo \\n', use printf"),

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(r'echo -n', "don't use 'echo -n', use printf"),

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(r'echo -n', "don't use 'echo -n', use printf"),

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(r'(^|\|\s*)\bwc\b[^|]*$\n(?!.*$re$)', "filter wc output"),

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(r'(^|\|\s*)\bwc\b[^|]*$\n(?!.*$re$)', "filter wc output"),

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(r'head -c', "don't use 'head -c', use 'dd'"),

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(r'head -c', "don't use 'head -c', use 'dd'"),

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(r'tail -n', "don't use the '-n' option to tail, just use '-<num>'"),

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(r'tail -n', "don't use the '-n' option to tail, just use '-<num>'"),

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(r'sha1sum', "don't use sha1sum, use $TESTDIR/md5sum.py"),

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(r'sha1sum', "don't use sha1sum, use $TESTDIR/md5sum.py"),

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(r'ls.*-\w*R', "don't use 'ls -R', use 'find'"),

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(r'ls.*-\w*R', "don't use 'ls -R', use 'find'"),

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(r'printf.*[^\\]\\([1-9]|0\d)', "don't use 'printf \NNN', use Python"),

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(r'printf.*[^\\]\\([1-9]|0\d)', "don't use 'printf \NNN', use Python"),

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(r'printf.*[^\\]\\x', "don't use printf \\x, use Python"),

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(r'printf.*[^\\]\\x', "don't use printf \\x, use Python"),

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(r'\$$.*$', "don't use $(expr), use `expr`"),

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(r'\$$.*$', "don't use $(expr), use `expr`"),

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(r'rm -rf \*', "don't use naked rm -rf, target a directory"),

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(r'rm -rf \*', "don't use naked rm -rf, target a directory"),

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(r'(^|\|\s*)grep (-\w\s+)*[^|]*[(|]\w',

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(r'(^|\|\s*)grep (-\w\s+)*[^|]*[(|]\w',

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"use egrep for extended grep syntax"),

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"use egrep for extended grep syntax"),

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(r'/bin/', "don't use explicit paths for tools"),

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(r'/bin/', "don't use explicit paths for tools"),

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(r'[^\n]\Z', "no trailing newline"),

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(r'[^\n]\Z', "no trailing newline"),

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(r'export.*=', "don't export and assign at once"),

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(r'export.*=', "don't export and assign at once"),

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(r'^source\b', "don't use 'source', use '.'"),

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(r'^source\b', "don't use 'source', use '.'"),

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(r'touch -d', "don't use 'touch -d', use 'touch -t' instead"),

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(r'touch -d', "don't use 'touch -d', use 'touch -t' instead"),

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(r'ls +[^|\n-]+ +-', "options to 'ls' must come before filenames"),

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(r'ls +[^|\n-]+ +-', "options to 'ls' must come before filenames"),

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(r'[^>\n]>\s*\$HGRCPATH', "don't overwrite $HGRCPATH, append to it"),

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(r'[^>\n]>\s*\$HGRCPATH', "don't overwrite $HGRCPATH, append to it"),

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(r'^stop', "don't use 'stop' as a shell function name"),

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(r'^stop', "don't use 'stop' as a shell function name"),

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(r'(\[|\btest\b).*-e ', "don't use 'test -e', use 'test -f'"),

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(r'(\[|\btest\b).*-e ', "don't use 'test -e', use 'test -f'"),

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(r'^alias\b.*=', "don't use alias, use a function"),

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(r'^alias\b.*=', "don't use alias, use a function"),

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(r'if\s*!', "don't use '!' to negate exit status"),

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(r'if\s*!', "don't use '!' to negate exit status"),

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(r'/dev/u?random', "don't use entropy, use /dev/zero"),

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(r'/dev/u?random', "don't use entropy, use /dev/zero"),

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(r'do\s*true;\s*done', "don't use true as loop body, use sleep 0"),

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(r'do\s*true;\s*done', "don't use true as loop body, use sleep 0"),

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(r'^( *)\t', "don't use tabs to indent"),

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(r'^( *)\t', "don't use tabs to indent"),

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(r'sed (-e )?\'(\d+|/[^/]*/)i(?!\\\n)',

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(r'sed (-e )?\'(\d+|/[^/]*/)i(?!\\\n)',

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"put a backslash-escaped newline after sed 'i' command"),

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"put a backslash-escaped newline after sed 'i' command"),

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(r'^diff *-\w*u.*$\n(^ \$ |^$)', "prefix diff -u with cmp"),

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(r'^diff *-\w*u.*$\n(^ \$ |^$)', "prefix diff -u with cmp"),

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],

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],

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# warnings

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# warnings

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[

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[

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(r'^function', "don't use 'function', use old style"),

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(r'^function', "don't use 'function', use old style"),

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(r'^diff.*-\w*N', "don't use 'diff -N'"),

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(r'^diff.*-\w*N', "don't use 'diff -N'"),

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(r'\$PWD|\${PWD}', "don't use $PWD, use `pwd`"),

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(r'\$PWD|\${PWD}', "don't use $PWD, use `pwd`"),

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(r'^([^"\'\n]|("[^"\n]*")|(\'[^\'\n]*\'))*\^', "^ must be quoted"),

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(r'^([^"\'\n]|("[^"\n]*")|(\'[^\'\n]*\'))*\^', "^ must be quoted"),

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(r'kill (`|\$\()', "don't use kill, use killdaemons.py")

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(r'kill (`|\$\()', "don't use kill, use killdaemons.py")

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]

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]

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]

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]

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testfilters = [

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testfilters = [

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(r"( *)(#([^\n]*\S)?)", repcomment),

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(r"( *)(#([^\n]*\S)?)", repcomment),

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(r"<<(\S+)((.|\n)*?\n\1)", rephere),

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(r"<<(\S+)((.|\n)*?\n\1)", rephere),

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]

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]

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winglobmsg = "use (glob) to match Windows paths too"

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winglobmsg = "use (glob) to match Windows paths too"

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uprefix = r"^ \$ "

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uprefix = r"^ \$ "

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utestpats = [

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utestpats = [

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[

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[

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(r'^(\S.*|| [$>] .*)[ \t]\n', "trailing whitespace on non-output"),

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(r'^(\S.*|| [$>] .*)[ \t]\n', "trailing whitespace on non-output"),

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(uprefix + r'.*\|\s*sed[^|>\n]*\n',

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(uprefix + r'.*\|\s*sed[^|>\n]*\n',

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"use regex test output patterns instead of sed"),

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"use regex test output patterns instead of sed"),

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(uprefix + r'(true|exit 0)', "explicit zero exit unnecessary"),

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(uprefix + r'(true|exit 0)', "explicit zero exit unnecessary"),

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(uprefix + r'.*(?<!\[)\$\?', "explicit exit code checks unnecessary"),

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(uprefix + r'.*(?<!\[)\$\?', "explicit exit code checks unnecessary"),

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(uprefix + r'.*\|\| echo.*(fail|error)',

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(uprefix + r'.*\|\| echo.*(fail|error)',

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"explicit exit code checks unnecessary"),

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"explicit exit code checks unnecessary"),

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(uprefix + r'set -e', "don't use set -e"),

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(uprefix + r'set -e', "don't use set -e"),

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(uprefix + r'(\s|fi\b|done\b)', "use > for continued lines"),

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(uprefix + r'(\s|fi\b|done\b)', "use > for continued lines"),

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(uprefix + r'.*:\.\S*/', "x:.y in a path does not work on msys, rewrite "

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(uprefix + r'.*:\.\S*/', "x:.y in a path does not work on msys, rewrite "

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"as x://.y, or see `hg log -k msys` for alternatives", r'-\S+:\.|' #-Rxxx

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"as x://.y, or see `hg log -k msys` for alternatives", r'-\S+:\.|' #-Rxxx

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'~~hg pull -q file:../test~~'), # in test-pull.t which is skipped on windows

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'# no-msys'), # in test-pull.t which is skipped on windows

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(r'^ saved backup bundle to \$TESTTMP.*\.hg$', winglobmsg),

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(r'^ saved backup bundle to \$TESTTMP.*\.hg$', winglobmsg),

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(r'^ changeset .* references (corrupted|missing) \$TESTTMP/.*[^)]$',

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(r'^ changeset .* references (corrupted|missing) \$TESTTMP/.*[^)]$',

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winglobmsg),

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winglobmsg),

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(r'^ pulling from \$TESTTMP/.*[^)]$', winglobmsg,

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(r'^ pulling from \$TESTTMP/.*[^)]$', winglobmsg,

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'\$TESTTMP/unix-repo$'), # in test-issue1802.t which skipped on windows

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'\$TESTTMP/unix-repo$'), # in test-issue1802.t which skipped on windows

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(r'^ reverting (?!subrepo ).*/.*[^)]$', winglobmsg),

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(r'^ reverting (?!subrepo ).*/.*[^)]$', winglobmsg),

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(r'^ cloning subrepo \S+/.*[^)]$', winglobmsg),

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(r'^ cloning subrepo \S+/.*[^)]$', winglobmsg),

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(r'^ pushing to \$TESTTMP/.*[^)]$', winglobmsg),

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(r'^ pushing to \$TESTTMP/.*[^)]$', winglobmsg),

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(r'^ pushing subrepo \S+/\S+ to.*[^)]$', winglobmsg),

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(r'^ pushing subrepo \S+/\S+ to.*[^)]$', winglobmsg),

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(r'^ moving \S+/.*[^)]$', winglobmsg),

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(r'^ moving \S+/.*[^)]$', winglobmsg),

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(r'^ no changes made to subrepo since.*/.*[^)]$', winglobmsg),

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(r'^ no changes made to subrepo since.*/.*[^)]$', winglobmsg),

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(r'^ .*: largefile \S+ not available from file:.*/.*[^)]$', winglobmsg),

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(r'^ .*: largefile \S+ not available from file:.*/.*[^)]$', winglobmsg),

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(r'^ .*file://\$TESTTMP',

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(r'^ .*file://\$TESTTMP',

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'write "file:/*/$TESTTMP" + (glob) to match on windows too'),

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'write "file:/*/$TESTTMP" + (glob) to match on windows too'),

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(r'^ (cat|find): .*: No such file or directory',

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(r'^ (cat|find): .*: No such file or directory',

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'use test -f to test for file existence'),

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'use test -f to test for file existence'),

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],

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],

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# warnings

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# warnings

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[

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[

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(r'^ [^*?/\n]* $glob$$',

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(r'^ [^*?/\n]* $glob$$',

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"glob match with no glob character (?*/)"),

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"glob match with no glob character (?*/)"),

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]

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]

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]

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]

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for i in [0, 1]:

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for i in [0, 1]:

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for tp in testpats[i]:

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for tp in testpats[i]:

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p = tp[0]

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p = tp[0]

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m = tp[1]

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m = tp[1]

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if p.startswith(r'^'):

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if p.startswith(r'^'):

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p = r"^ [$>] (%s)" % p[1:]

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p = r"^ [$>] (%s)" % p[1:]

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else:

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else:

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p = r"^ [$>] .*(%s)" % p

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p = r"^ [$>] .*(%s)" % p

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utestpats[i].append((p, m) + tp[2:])

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utestpats[i].append((p, m) + tp[2:])

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utestfilters = [

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utestfilters = [

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(r"<<(\S+)((.|\n)*?\n > \1)", rephere),

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(r"<<(\S+)((.|\n)*?\n > \1)", rephere),

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(r"( *)(#([^\n]*\S)?)", repcomment),

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(r"( *)(#([^\n]*\S)?)", repcomment),

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]

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]

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pypats = [

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pypats = [

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[

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[

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(r'\([^)]*\*\w[^()]+\w+=', "can't pass varargs with keyword in Py2.5"),

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(r'\([^)]*\*\w[^()]+\w+=', "can't pass varargs with keyword in Py2.5"),

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(r'^\s*def\s*\w+\s*\(.*,\s*\(',

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(r'^\s*def\s*\w+\s*\(.*,\s*\(',

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"tuple parameter unpacking not available in Python 3+"),

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"tuple parameter unpacking not available in Python 3+"),

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(r'lambda\s*$.*,.*$',

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(r'lambda\s*$.*,.*$',

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"tuple parameter unpacking not available in Python 3+"),

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"tuple parameter unpacking not available in Python 3+"),

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(r'import (.+,[^.]+\.[^.]+|[^.]+\.[^.]+,)',

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(r'import (.+,[^.]+\.[^.]+|[^.]+\.[^.]+,)',

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'2to3 can\'t always rewrite "import qux, foo.bar", '

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'2to3 can\'t always rewrite "import qux, foo.bar", '

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'use "import foo.bar" on its own line instead.'),

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'use "import foo.bar" on its own line instead.'),

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(r'(?<!def)\s+(cmp)\(', "cmp is not available in Python 3+"),

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(r'(?<!def)\s+(cmp)\(', "cmp is not available in Python 3+"),

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(r'\breduce\s*\(.*', "reduce is not available in Python 3+"),

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(r'\breduce\s*\(.*', "reduce is not available in Python 3+"),

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(r'dict\(.*=', 'dict() is different in Py2 and 3 and is slower than {}',

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(r'dict\(.*=', 'dict() is different in Py2 and 3 and is slower than {}',

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'dict-from-generator'),

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'dict-from-generator'),

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(r'\.has_key\b', "dict.has_key is not available in Python 3+"),

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(r'\.has_key\b', "dict.has_key is not available in Python 3+"),

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(r'\s<>\s', '<> operator is not available in Python 3+, use !='),

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(r'\s<>\s', '<> operator is not available in Python 3+, use !='),

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(r'^\s*\t', "don't use tabs"),

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(r'^\s*\t', "don't use tabs"),

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(r'\S;\s*\n', "semicolon"),

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(r'\S;\s*\n', "semicolon"),

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(r'[^_]_\([ \t\n]*(?:"[^"]+"[ \t\n+]*)+%', "don't use % inside _()"),

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(r'[^_]_\([ \t\n]*(?:"[^"]+"[ \t\n+]*)+%', "don't use % inside _()"),

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(r"[^_]_\([ \t\n]*(?:'[^']+'[ \t\n+]*)+%", "don't use % inside _()"),

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(r"[^_]_\([ \t\n]*(?:'[^']+'[ \t\n+]*)+%", "don't use % inside _()"),

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(r'(\w|\)),\w', "missing whitespace after ,"),

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(r'(\w|\)),\w', "missing whitespace after ,"),

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(r'(\w|\))[+/*\-<>]\w', "missing whitespace in expression"),

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(r'(\w|\))[+/*\-<>]\w', "missing whitespace in expression"),

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(r'^\s+(\w|\.)+=\w[^,()\n]*$', "missing whitespace in assignment"),

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(r'^\s+(\w|\.)+=\w[^,()\n]*$', "missing whitespace in assignment"),

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(r'(\s+)try:\n((?:\n|\1\s.*\n)+?)(\1except.*?:\n'

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(r'(\s+)try:\n((?:\n|\1\s.*\n)+?)(\1except.*?:\n'

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r'((?:\n|\1\s.*\n)+?))+\1finally:',

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r'((?:\n|\1\s.*\n)+?))+\1finally:',

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'no try/except/finally in Python 2.4'),

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'no try/except/finally in Python 2.4'),

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(r'(?<!def)(\s+|^|$)next\(.+$',

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(r'(?<!def)(\s+|^|$)next\(.+$',

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'no next(foo) in Python 2.4 and 2.5, use foo.next() instead'),

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'no next(foo) in Python 2.4 and 2.5, use foo.next() instead'),

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(r'(\s+)try:\n((?:\n|\1\s.*\n)*?)\1\s*yield\b.*?'

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(r'(\s+)try:\n((?:\n|\1\s.*\n)*?)\1\s*yield\b.*?'

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r'((?:\n|\1\s.*\n)+?)\1finally:',

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r'((?:\n|\1\s.*\n)+?)\1finally:',

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'no yield inside try/finally in Python 2.4'),

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'no yield inside try/finally in Python 2.4'),

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(r'.{81}', "line too long"),

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(r'.{81}', "line too long"),

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(r' x+[xo][\'"]\n\s+[\'"]x', 'string join across lines with no space'),

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(r' x+[xo][\'"]\n\s+[\'"]x', 'string join across lines with no space'),

229

(r'[^\n]\Z', "no trailing newline"),

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(r'[^\n]\Z', "no trailing newline"),

230

(r'(\S[ \t]+|^[ \t]+)\n', "trailing whitespace"),

230

(r'(\S[ \t]+|^[ \t]+)\n', "trailing whitespace"),

231

# (r'^\s+[^_ \n][^_. \n]+_[^_\n]+\s*=',

231

# (r'^\s+[^_ \n][^_. \n]+_[^_\n]+\s*=',

232

# "don't use underbars in identifiers"),

232

# "don't use underbars in identifiers"),

233

(r'^\s+(self\.)?[A-za-z][a-z0-9]+[A-Z]\w* = ',

233

(r'^\s+(self\.)?[A-za-z][a-z0-9]+[A-Z]\w* = ',

234

"don't use camelcase in identifiers"),

234

"don't use camelcase in identifiers"),

235

235

236

"linebreak after :"),

236

"linebreak after :"),

237

(r'class\s[^( \n]+:', "old-style class, use class foo(object)"),

237

(r'class\s[^( \n]+:', "old-style class, use class foo(object)"),

238

(r'class\s[^( \n]+:',

238

(r'class\s[^( \n]+:',

239

"class foo() not available in Python 2.4, use class foo(object)"),

239

"class foo() not available in Python 2.4, use class foo(object)"),

240

(r'\b(%s)\(' % '|'.join(keyword.kwlist),

240

(r'\b(%s)\(' % '|'.join(keyword.kwlist),

241

"Python keyword is not a function"),

241

"Python keyword is not a function"),

242

(r',]', "unneeded trailing ',' in list"),

242

(r',]', "unneeded trailing ',' in list"),

243

# (r'class\s[A-Z][^\(]*\((?!Exception)',

243

# (r'class\s[A-Z][^\(]*\((?!Exception)',

244

# "don't capitalize non-exception classes"),

244

# "don't capitalize non-exception classes"),

245

# (r'in range\(', "use xrange"),

245

# (r'in range\(', "use xrange"),

246

# (r'^\s*print\s+', "avoid using print in core and extensions"),

246

# (r'^\s*print\s+', "avoid using print in core and extensions"),

247

(r'[\x80-\xff]', "non-ASCII character literal"),

247

(r'[\x80-\xff]', "non-ASCII character literal"),

248

(r'("\')\.format\(', "str.format() not available in Python 2.4"),

248

(r'("\')\.format\(', "str.format() not available in Python 2.4"),

249

(r'^\s*with\s+', "with not available in Python 2.4"),

249

(r'^\s*with\s+', "with not available in Python 2.4"),

250

(r'\.isdisjoint\(', "set.isdisjoint not available in Python 2.4"),

250

(r'\.isdisjoint\(', "set.isdisjoint not available in Python 2.4"),

251

(r'^\s*except.* as .*:', "except as not available in Python 2.4"),

251

(r'^\s*except.* as .*:', "except as not available in Python 2.4"),

252

(r'^\s*os\.path\.relpath', "relpath not available in Python 2.4"),

252

(r'^\s*os\.path\.relpath', "relpath not available in Python 2.4"),

253

(r'(?<!def)\s+(any|all|format)\(',

253

(r'(?<!def)\s+(any|all|format)\(',

254

"any/all/format not available in Python 2.4", 'no-py24'),

254

"any/all/format not available in Python 2.4", 'no-py24'),

255

(r'if\s.*\selse', "if ... else form not available in Python 2.4"),

255

(r'if\s.*\selse', "if ... else form not available in Python 2.4"),

256

(r'^\s*(%s)\s\s' % '|'.join(keyword.kwlist),

256

(r'^\s*(%s)\s\s' % '|'.join(keyword.kwlist),

257

"gratuitous whitespace after Python keyword"),

257

"gratuitous whitespace after Python keyword"),

258

(r'([$\[][ \t]\S)|(\S[ \t][$\]])', "gratuitous whitespace in () or []"),

258

(r'([$\[][ \t]\S)|(\S[ \t][$\]])', "gratuitous whitespace in () or []"),

259

# (r'\s\s=', "gratuitous whitespace before ="),

259

# (r'\s\s=', "gratuitous whitespace before ="),

260

(r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\S',

260

(r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\S',

261

"missing whitespace around operator"),

261

"missing whitespace around operator"),

262

(r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\s',

262

(r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\s',

263

"missing whitespace around operator"),

263

"missing whitespace around operator"),

264

(r'\s(\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\S',

264

(r'\s(\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\S',

265

"missing whitespace around operator"),

265

"missing whitespace around operator"),

266

(r'[^^+=*/!<>&| %-](\s=|=\s)[^= ]',

266

(r'[^^+=*/!<>&| %-](\s=|=\s)[^= ]',

267

"wrong whitespace around ="),

267

"wrong whitespace around ="),

268

(r'\([^()]*( =[^=]|[^<>!=]= )',

268

(r'\([^()]*( =[^=]|[^<>!=]= )',

269

"no whitespace around = for named parameters"),

269

"no whitespace around = for named parameters"),

270

(r'raise Exception', "don't raise generic exceptions"),

270

(r'raise Exception', "don't raise generic exceptions"),

271

(r'raise [^,(]+, ($[^$]+\)|[^,]+)$',

271

(r'raise [^,(]+, ($[^$]+\)|[^,]+)$',

272

"don't use old-style two-argument raise, use Exception(message)"),

272

"don't use old-style two-argument raise, use Exception(message)"),

273

(r' is\s+(not\s+)?["\'0-9-]', "object comparison with literal"),

273

(r' is\s+(not\s+)?["\'0-9-]', "object comparison with literal"),

274

(r' [=!]=\s+(True|False|None)',

274

(r' [=!]=\s+(True|False|None)',

275

"comparison with singleton, use 'is' or 'is not' instead"),

275

"comparison with singleton, use 'is' or 'is not' instead"),

276

(r'^\s*(while|if) [01]:',

276

(r'^\s*(while|if) [01]:',

277

"use True/False for constant Boolean expression"),

277

"use True/False for constant Boolean expression"),

278

(r'(?:(?<!def)\s+|\()hasattr',

278

(r'(?:(?<!def)\s+|\()hasattr',

279

'hasattr(foo, bar) is broken, use util.safehasattr(foo, bar) instead'),

279

'hasattr(foo, bar) is broken, use util.safehasattr(foo, bar) instead'),

280

(r'opener$[^)]*$.read\(',

280

(r'opener$[^)]*$.read\(',

281

"use opener.read() instead"),

281

"use opener.read() instead"),

282

(r'BaseException', 'not in Python 2.4, use Exception'),

282

(r'BaseException', 'not in Python 2.4, use Exception'),

283

(r'os\.path\.relpath', 'os.path.relpath is not in Python 2.5'),

283

(r'os\.path\.relpath', 'os.path.relpath is not in Python 2.5'),

284

(r'opener$[^)]*$.write\(',

284

(r'opener$[^)]*$.write\(',

285

"use opener.write() instead"),

285

"use opener.write() instead"),

286

(r'[\s$](open|file)\([^)]*$\.read\(',

286

(r'[\s$](open|file)\([^)]*$\.read\(',

287

"use util.readfile() instead"),

287

"use util.readfile() instead"),

288

(r'[\s$](open|file)\([^)]*$\.write\(',

288

(r'[\s$](open|file)\([^)]*$\.write\(',

289

"use util.writefile() instead"),

289

"use util.writefile() instead"),

290

(r'^[\s$]*(open(er)?|file)\([^)]*$',

290

(r'^[\s$]*(open(er)?|file)\([^)]*$',

291

"always assign an opened file to a variable, and close it afterwards"),

291

"always assign an opened file to a variable, and close it afterwards"),

292

(r'[\s$](open|file)\([^)]*$\.',

292

(r'[\s$](open|file)\([^)]*$\.',

293

"always assign an opened file to a variable, and close it afterwards"),

293

"always assign an opened file to a variable, and close it afterwards"),

294

(r'(?i)descend[e]nt', "the proper spelling is descendAnt"),

294

(r'(?i)descend[e]nt', "the proper spelling is descendAnt"),

295

(r'\.debug\(\_', "don't mark debug messages for translation"),

295

(r'\.debug\(\_', "don't mark debug messages for translation"),

296

(r'\.strip\.split', "no need to strip before splitting"),

296

(r'\.strip\.split', "no need to strip before splitting"),

297

(r'^\s*except\s*:', "naked except clause", r'#.*re-raises'),

297

(r'^\s*except\s*:', "naked except clause", r'#.*re-raises'),

298

(r':\n( )*( ){1,3}[^ ]', "must indent 4 spaces"),

298

(r':\n( )*( ){1,3}[^ ]', "must indent 4 spaces"),

299

(r'ui\.(status|progress|write|note|warn)\([\'\"]x',

299

(r'ui\.(status|progress|write|note|warn)\([\'\"]x',

300

"missing _() in ui message (use () to hide false-positives)"),

300

"missing _() in ui message (use () to hide false-positives)"),

301

(r'release$.*wlock, .*lock$', "wrong lock release order"),

301

(r'release$.*wlock, .*lock$', "wrong lock release order"),

302

(r'\b__bool__\b', "__bool__ should be __nonzero__ in Python 2"),

302

(r'\b__bool__\b', "__bool__ should be __nonzero__ in Python 2"),

303

],

303

],

304

# warnings

304

# warnings

305

[

305

[

306

(r'(^| )pp +xxxxqq[ \n][^\n]', "add two newlines after '.. note::'"),

306

(r'(^| )pp +xxxxqq[ \n][^\n]', "add two newlines after '.. note::'"),

307

]

307

]

308

]

308

]

309

310

pyfilters = [

310

pyfilters = [

311

(r"""(?msx)(?P<comment>\#.*?$)|

311

(r"""(?msx)(?P<comment>\#.*?$)|

312

((?P<quote>('''|\"\"\"|(?<!')'(?!')|(?<!")"(?!")))

312

((?P<quote>('''|\"\"\"|(?<!')'(?!')|(?<!")"(?!")))

313

(?P<text>(([^\\]|\\.)*?))

313

(?P<text>(([^\\]|\\.)*?))

314

(?P=quote))""", reppython),

314

(?P=quote))""", reppython),

315

]

315

]

316

317

txtfilters = []

317

txtfilters = []

318

319

txtpats = [

319

txtpats = [

320

[

320

[

321

('\s$', 'trailing whitespace'),

321

('\s$', 'trailing whitespace'),

322

('.. note::[ \n][^\n]', 'add two newlines after note::')

322

('.. note::[ \n][^\n]', 'add two newlines after note::')

323

],

323

],

324

[]

324

[]

325

]

325

]

326

327

cpats = [

327

cpats = [

328

[

328

[

329

(r'//', "don't use //-style comments"),

329

(r'//', "don't use //-style comments"),

330

(r'^ ', "don't use spaces to indent"),

330

(r'^ ', "don't use spaces to indent"),

331

(r'\S\t', "don't use tabs except for indent"),

331

(r'\S\t', "don't use tabs except for indent"),

332

(r'(\S[ \t]+|^[ \t]+)\n', "trailing whitespace"),

332

(r'(\S[ \t]+|^[ \t]+)\n', "trailing whitespace"),

333

(r'.{81}', "line too long"),

333

(r'.{81}', "line too long"),

334

(r'(while|if|do|for)\(', "use space after while/if/do/for"),

334

(r'(while|if|do|for)\(', "use space after while/if/do/for"),

335

(r'return\(', "return is not a function"),

335

(r'return\(', "return is not a function"),

336

(r' ;', "no space before ;"),

336

(r' ;', "no space before ;"),

337

(r'[)][{]', "space between ) and {"),

337

(r'[)][{]', "space between ) and {"),

338

(r'\w+\* \w+', "use int *foo, not int* foo"),

338

(r'\w+\* \w+', "use int *foo, not int* foo"),

339

(r'\W$[^$]+\) \w+', "use (int)foo, not (int) foo"),

339

(r'\W$[^$]+\) \w+', "use (int)foo, not (int) foo"),

340

(r'\w+ (\+\+|--)', "use foo++, not foo ++"),

340

(r'\w+ (\+\+|--)', "use foo++, not foo ++"),

341

(r'\w,\w', "missing whitespace after ,"),

341

(r'\w,\w', "missing whitespace after ,"),

342

(r'^[^#]\w[+/*]\w', "missing whitespace in expression"),

342

(r'^[^#]\w[+/*]\w', "missing whitespace in expression"),

343

(r'^#\s+\w', "use #foo, not # foo"),

343

(r'^#\s+\w', "use #foo, not # foo"),

344

(r'[^\n]\Z', "no trailing newline"),

344

(r'[^\n]\Z', "no trailing newline"),

345

(r'^\s*#import\b', "use only #include in standard C code"),

345

(r'^\s*#import\b', "use only #include in standard C code"),

346

],

346

],

347

# warnings

347

# warnings

348

[]

348

[]

349

]

349

]

350

351

cfilters = [

351

cfilters = [

352

(r'(/\*)(((\*(?!/))|[^*])*)\*/', repccomment),

352

(r'(/\*)(((\*(?!/))|[^*])*)\*/', repccomment),

353

(r'''(?P<quote>(?<!")")(?P<text>([^"]|\\")+)"(?!")''', repquote),

353

(r'''(?P<quote>(?<!")")(?P<text>([^"]|\\")+)"(?!")''', repquote),

354

(r'''(#\s*include\s+<)([^>]+)>''', repinclude),

354

(r'''(#\s*include\s+<)([^>]+)>''', repinclude),

355

(r'($)([^)]+$)', repcallspaces),

355

(r'($)([^)]+$)', repcallspaces),

356

]

356

]

357

358

inutilpats = [

358

inutilpats = [

359

[

359

[

360

(r'\bui\.', "don't use ui in util"),

360

(r'\bui\.', "don't use ui in util"),

361

],

361

],

362

# warnings

362

# warnings

363

[]

363

[]

364

]

364

]

365

366

inrevlogpats = [

366

inrevlogpats = [

367

[

367

[

368

(r'\brepo\.', "don't use repo in revlog"),

368

(r'\brepo\.', "don't use repo in revlog"),

369

],

369

],

370

# warnings

370

# warnings

371

[]

371

[]

372

]

372

]

373

374

webtemplatefilters = []

374

webtemplatefilters = []

375

376

webtemplatepats = [

376

webtemplatepats = [

377

[],

377

[],

378

[

378

[

379

(r'{desc(\|(?!websub|firstline)[^\|]*)+}',

379

(r'{desc(\|(?!websub|firstline)[^\|]*)+}',

380

'follow desc keyword with either firstline or websub'),

380

'follow desc keyword with either firstline or websub'),

381

]

381

]

382

]

382

]

383

384

checks = [

384

checks = [

385

('python', r'.*\.(py|cgi)$', r'^#!.*python', pyfilters, pypats),

385

('python', r'.*\.(py|cgi)$', r'^#!.*python', pyfilters, pypats),

386

('test script', r'(.*/)?test-[^.~]*$', '', testfilters, testpats),

386

('test script', r'(.*/)?test-[^.~]*$', '', testfilters, testpats),

387

('c', r'.*\.[ch]$', '', cfilters, cpats),

387

('c', r'.*\.[ch]$', '', cfilters, cpats),

388

('unified test', r'.*\.t$', '', utestfilters, utestpats),

388

('unified test', r'.*\.t$', '', utestfilters, utestpats),

389

('layering violation repo in revlog', r'mercurial/revlog\.py', '',

389

('layering violation repo in revlog', r'mercurial/revlog\.py', '',

390

pyfilters, inrevlogpats),

390

pyfilters, inrevlogpats),

391

('layering violation ui in util', r'mercurial/util\.py', '', pyfilters,

391

('layering violation ui in util', r'mercurial/util\.py', '', pyfilters,

392

inutilpats),

392

inutilpats),

393

('txt', r'.*\.txt$', '', txtfilters, txtpats),

393

('txt', r'.*\.txt$', '', txtfilters, txtpats),

394

('web template', r'mercurial/templates/.*\.tmpl', '',

394

('web template', r'mercurial/templates/.*\.tmpl', '',

395

webtemplatefilters, webtemplatepats),

395

webtemplatefilters, webtemplatepats),

396

]

396

]

397

398

def _preparepats():

398

def _preparepats():

399

for c in checks:

399

for c in checks:

400

failandwarn = c[-1]

400

failandwarn = c[-1]

401

for pats in failandwarn:

401

for pats in failandwarn:

402

for i, pseq in enumerate(pats):

402

for i, pseq in enumerate(pats):

403

# fix-up regexes for multi-line searches

403

# fix-up regexes for multi-line searches

404

p = pseq[0]

404

p = pseq[0]

405

# \s doesn't match \n

405

# \s doesn't match \n

406

p = re.sub(r'(?<!\\)\\s', r'[ \\t]', p)

406

p = re.sub(r'(?<!\\)\\s', r'[ \\t]', p)

407

# [^...] doesn't match newline

407

# [^...] doesn't match newline

408

p = re.sub(r'(?<!\\)\[\^', r'[^\\n', p)

408

p = re.sub(r'(?<!\\)\[\^', r'[^\\n', p)

409

410

pats[i] = (re.compile(p, re.MULTILINE),) + pseq[1:]

410

pats[i] = (re.compile(p, re.MULTILINE),) + pseq[1:]

411

filters = c[3]

411

filters = c[3]

412

for i, flt in enumerate(filters):

412

for i, flt in enumerate(filters):

413

filters[i] = re.compile(flt[0]), flt[1]

413

filters[i] = re.compile(flt[0]), flt[1]

414

_preparepats()

414

_preparepats()

415

416

class norepeatlogger(object):

416

class norepeatlogger(object):

417

def __init__(self):

417

def __init__(self):

418

self._lastseen = None

418

self._lastseen = None

419

420

def log(self, fname, lineno, line, msg, blame):

420

def log(self, fname, lineno, line, msg, blame):

421

"""print error related a to given line of a given file.

421

"""print error related a to given line of a given file.

422

423

The faulty line will also be printed but only once in the case

423

The faulty line will also be printed but only once in the case

424

of multiple errors.

424

of multiple errors.

425

426

:fname: filename

426

:fname: filename

427

:lineno: line number

427

:lineno: line number

428

:line: actual content of the line

428

:line: actual content of the line

429

:msg: error message

429

:msg: error message

430

"""

430

"""

431

msgid = fname, lineno, line

431

msgid = fname, lineno, line

432

if msgid != self._lastseen:

432

if msgid != self._lastseen:

433

if blame:

433

if blame:

434

print "%s:%d (%s):" % (fname, lineno, blame)

434

print "%s:%d (%s):" % (fname, lineno, blame)

435

else:

435

else:

436

print "%s:%d:" % (fname, lineno)

436

print "%s:%d:" % (fname, lineno)

437

print " > %s" % line

437

print " > %s" % line

438

self._lastseen = msgid

438

self._lastseen = msgid

439

print " " + msg

439

print " " + msg

440

441

_defaultlogger = norepeatlogger()

441

_defaultlogger = norepeatlogger()

442

443

def getblame(f):

443

def getblame(f):

444

lines = []

444

lines = []

445

for l in os.popen('hg annotate -un %s' % f):

445

for l in os.popen('hg annotate -un %s' % f):

446

start, line = l.split(':', 1)

446

start, line = l.split(':', 1)

447

user, rev = start.split()

447

user, rev = start.split()

448

lines.append((line[1:-1], user, rev))

448

lines.append((line[1:-1], user, rev))

449

return lines

449

return lines

450

451

def checkfile(f, logfunc=_defaultlogger.log, maxerr=None, warnings=False,

451

def checkfile(f, logfunc=_defaultlogger.log, maxerr=None, warnings=False,

452

blame=False, debug=False, lineno=True):

452

blame=False, debug=False, lineno=True):

453

"""checks style and portability of a given file

453

"""checks style and portability of a given file

454

455

:f: filepath

455

:f: filepath

456

:logfunc: function used to report error

456

:logfunc: function used to report error

457

logfunc(filename, linenumber, linecontent, errormessage)

457

logfunc(filename, linenumber, linecontent, errormessage)

458

:maxerr: number of error to display before aborting.

458

:maxerr: number of error to display before aborting.

459

Set to false (default) to report all errors

459

Set to false (default) to report all errors

460

461

return True if no error is found, False otherwise.

461

return True if no error is found, False otherwise.

462

"""

462

"""

463

blamecache = None

463

blamecache = None

464

result = True

464

result = True

465

466

try:

466

try:

467

fp = open(f)

467

fp = open(f)

468

except IOError, e:

468

except IOError, e:

469

print "Skipping %s, %s" % (f, str(e).split(':', 1)[0])

469

print "Skipping %s, %s" % (f, str(e).split(':', 1)[0])

470

return result

470

return result

471

pre = post = fp.read()

471

pre = post = fp.read()

472

fp.close()

472

fp.close()

473

474

for name, match, magic, filters, pats in checks:

474

for name, match, magic, filters, pats in checks:

475

if debug:

475

if debug:

476

print name, f

476

print name, f

477

fc = 0

477

fc = 0

478

if not (re.match(match, f) or (magic and re.search(magic, f))):

478

if not (re.match(match, f) or (magic and re.search(magic, f))):

479

if debug:

479

if debug:

480

print "Skipping %s for %s it doesn't match %s" % (

480

print "Skipping %s for %s it doesn't match %s" % (

481

name, match, f)

481

name, match, f)

482

continue

482

continue

483

if "no-" "check-code" in pre:

483

if "no-" "check-code" in pre:

484

print "Skipping %s it has no-" "check-code" % f

484

print "Skipping %s it has no-" "check-code" % f

485

return "Skip" # skip checking this file

485

return "Skip" # skip checking this file

486

for p, r in filters:

486

for p, r in filters:

487

post = re.sub(p, r, post)

487

post = re.sub(p, r, post)

488

nerrs = len(pats[0]) # nerr elements are errors

488

nerrs = len(pats[0]) # nerr elements are errors

489

if warnings:

489

if warnings:

490

pats = pats[0] + pats[1]

490

pats = pats[0] + pats[1]

491

else:

491

else:

492

pats = pats[0]

492

pats = pats[0]

493

# print post # uncomment to show filtered version

493

# print post # uncomment to show filtered version

494

495

if debug:

495

if debug:

496

print "Checking %s for %s" % (name, f)

496

print "Checking %s for %s" % (name, f)

497

498

prelines = None

498

prelines = None

499

errors = []

499

errors = []

500

for i, pat in enumerate(pats):

500

for i, pat in enumerate(pats):

501

if len(pat) == 3:

501

if len(pat) == 3:

502

p, msg, ignore = pat

502

p, msg, ignore = pat

503

else:

503

else:

504

p, msg = pat

504

p, msg = pat

505

ignore = None

505

ignore = None

506

if i >= nerrs:

506

if i >= nerrs:

507

msg = "warning: " + msg

507

msg = "warning: " + msg

508

509

pos = 0

509

pos = 0

510

n = 0

510

n = 0

511

for m in p.finditer(post):

511

for m in p.finditer(post):

512

if prelines is None:

512

if prelines is None:

513

prelines = pre.splitlines()

513

prelines = pre.splitlines()

514

postlines = post.splitlines(True)

514

postlines = post.splitlines(True)

515

516

start = m.start()

516

start = m.start()

517

while n < len(postlines):

517

while n < len(postlines):

518

step = len(postlines[n])

518

step = len(postlines[n])

519

if pos + step > start:

519

if pos + step > start:

520

break

520

break

521

pos += step

521

pos += step

522

n += 1

522

n += 1

523

l = prelines[n]

523

l = prelines[n]

524

525

if ignore and re.search(ignore, l, re.MULTILINE):

525

if ignore and re.search(ignore, l, re.MULTILINE):

526

if debug:

526

if debug:

527

print "Skipping %s for %s:%s (ignore pattern)" % (

527

print "Skipping %s for %s:%s (ignore pattern)" % (

528

name, f, n)

528

name, f, n)

529

continue

529

continue

530

bd = ""

530

bd = ""

531

if blame:

531

if blame:

532

bd = 'working directory'

532

bd = 'working directory'

533

if not blamecache:

533

if not blamecache:

534

blamecache = getblame(f)

534

blamecache = getblame(f)

535

if n < len(blamecache):

535

if n < len(blamecache):

536

bl, bu, br = blamecache[n]

536

bl, bu, br = blamecache[n]

537

if bl == l:

537

if bl == l:

538

bd = '%s@%s' % (bu, br)

538

bd = '%s@%s' % (bu, br)

539

540

errors.append((f, lineno and n + 1, l, msg, bd))

540

errors.append((f, lineno and n + 1, l, msg, bd))

541

result = False

541

result = False

542

543

errors.sort()

543

errors.sort()

544

for e in errors:

544

for e in errors:

545

logfunc(*e)

545

logfunc(*e)

546

fc += 1

546

fc += 1

547

if maxerr and fc >= maxerr:

547

if maxerr and fc >= maxerr:

548

print " (too many errors, giving up)"

548

print " (too many errors, giving up)"

549

break

549

break

550

551

return result

551

return result

552

553

if __name__ == "__main__":

553

if __name__ == "__main__":

554

parser = optparse.OptionParser("%prog [options] [files]")

554

parser = optparse.OptionParser("%prog [options] [files]")

555

parser.add_option("-w", "--warnings", action="store_true",

555

parser.add_option("-w", "--warnings", action="store_true",

556

help="include warning-level checks")

556

help="include warning-level checks")

557

parser.add_option("-p", "--per-file", type="int",

557

parser.add_option("-p", "--per-file", type="int",

558

help="max warnings per file")

558

help="max warnings per file")

559

parser.add_option("-b", "--blame", action="store_true",

559

parser.add_option("-b", "--blame", action="store_true",

560

help="use annotate to generate blame info")

560

help="use annotate to generate blame info")

561

parser.add_option("", "--debug", action="store_true",

561

parser.add_option("", "--debug", action="store_true",

562

help="show debug information")

562

help="show debug information")

563

parser.add_option("", "--nolineno", action="store_false",

563

parser.add_option("", "--nolineno", action="store_false",

564

dest='lineno', help="don't show line numbers")

564

dest='lineno', help="don't show line numbers")

565

566

parser.set_defaults(per_file=15, warnings=False, blame=False, debug=False,

566

parser.set_defaults(per_file=15, warnings=False, blame=False, debug=False,

567

lineno=True)

567

lineno=True)

568

(options, args) = parser.parse_args()

568

(options, args) = parser.parse_args()

569

570

if len(args) == 0:

570

if len(args) == 0:

571

check = glob.glob("*")

571

check = glob.glob("*")

572

else:

572

else:

573

check = args

573

check = args

574

575

ret = 0

575

ret = 0

576

for f in check:

576

for f in check:

577

if not checkfile(f, maxerr=options.per_file, warnings=options.warnings,

577

if not checkfile(f, maxerr=options.per_file, warnings=options.warnings,

578

blame=options.blame, debug=options.debug,

578

blame=options.blame, debug=options.debug,

579

lineno=options.lineno):

579

lineno=options.lineno):

580

ret = 1

580

ret = 1

581

sys.exit(ret)

581

sys.exit(ret)

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             #!/usr/bin/env python
             #
             # check-code - a style and portability checker for Mercurial
             #
             # Copyright 2010 Matt Mackall <mpm@selenic.com>
             #
             # This software may be used and distributed according to the terms of the
             # GNU General Public License version 2 or any later version.
             """style and portability checker for Mercurial
             when a rule triggers wrong, do one of the following (prefer one from top):
              * do the work-around the rule suggests
              * doublecheck that it is a false match
              * improve the rule pattern
              * add an ignore pattern to the rule (3rd arg) which matches your good line
                (you can append a short comment and match this, like: #re-raises, # no-py24)
              * change the pattern to a warning and list the exception in test-check-code-hg
              * ONLY use no--check-code for skipping entire files from external sources
             """
             import re, glob, os, sys
             import keyword
             import optparse
             try:
                 import re2
             except ImportError:
                 re2 = None
             def compilere(pat, multiline=False):
                 if multiline:
                     pat = '(?m)' + pat
                 if re2:
                     try:
                         return re2.compile(pat)
                     except re2.error:
                         pass
                 return re.compile(pat)
             def repquote(m):
                 fromc = '.:'
                 tochr = 'pq'
                 def encodechr(i):
                     if i > 255:
                         return 'u'
                     c = chr(i)
                     if c in ' \n':
                         return c
                     if c.isalpha():
                         return 'x'
                     if c.isdigit():
                         return 'n'
                     try:
                         return tochr[fromc.find(c)]
                     except (ValueError, IndexError):
                         return 'o'
                 t = m.group('text')
                 tt = ''.join(encodechr(i) for i in xrange(256))
                 t = t.translate(tt)
                 return m.group('quote') + t + m.group('quote')
             def reppython(m):
                 comment = m.group('comment')
                 if comment:
                     l = len(comment.rstrip())
                     return "#" * l + comment[l:]
                 return repquote(m)
             def repcomment(m):
                 return m.group(1) + "#" * len(m.group(2))
             def repccomment(m):
                 t = re.sub(r"((?<=\n) )|\S", "x", m.group(2))
                 return m.group(1) + t + "*/"
             def repcallspaces(m):
                 t = re.sub(r"\n\s+", "\n", m.group(2))
                 return m.group(1) + t
             def repinclude(m):
                 return m.group(1) + "<foo>"
             def rephere(m):
                 t = re.sub(r"\S", "x", m.group(2))
                 return m.group(1) + t
             testpats = [
               [
                 (r'pushd|popd', "don't use 'pushd' or 'popd', use 'cd'"),
                 (r'\W\$?\(\([^\)\n]*\)\)', "don't use (()) or $(()), use 'expr'"),
                 (r'grep.*-q', "don't use 'grep -q', redirect to /dev/null"),
                 (r'(?<!hg )grep.*-a', "don't use 'grep -a', use in-line python"),
                 (r'sed.*-i', "don't use 'sed -i', use a temporary file"),
                 (r'\becho\b.*\\n', "don't use 'echo \\n', use printf"),
                 (r'echo -n', "don't use 'echo -n', use printf"),
                 (r'(^|\|\s*)\bwc\b[^|]*$\n(?!.*\(re\))', "filter wc output"),
                 (r'head -c', "don't use 'head -c', use 'dd'"),
                 (r'tail -n', "don't use the '-n' option to tail, just use '-<num>'"),
                 (r'sha1sum', "don't use sha1sum, use $TESTDIR/md5sum.py"),
                 (r'ls.*-\w*R', "don't use 'ls -R', use 'find'"),
                 (r'printf.*[^\\]\\([1-9]|0\d)', "don't use 'printf \NNN', use Python"),
                 (r'printf.*[^\\]\\x', "don't use printf \\x, use Python"),
                 (r'\$\(.*\)', "don't use $(expr), use `expr`"),
                 (r'rm -rf \*', "don't use naked rm -rf, target a directory"),
                 (r'(^|\|\s*)grep (-\w\s+)*[^|]*[(|]\w',
                  "use egrep for extended grep syntax"),
                 (r'/bin/', "don't use explicit paths for tools"),
                 (r'[^\n]\Z', "no trailing newline"),
                 (r'export.*=', "don't export and assign at once"),
                 (r'^source\b', "don't use 'source', use '.'"),
                 (r'touch -d', "don't use 'touch -d', use 'touch -t' instead"),
                 (r'ls +[^|\n-]+ +-', "options to 'ls' must come before filenames"),
                 (r'[^>\n]>\s*\$HGRCPATH', "don't overwrite $HGRCPATH, append to it"),
                 (r'^stop\(\)', "don't use 'stop' as a shell function name"),
                 (r'(\[|\btest\b).*-e ', "don't use 'test -e', use 'test -f'"),
                 (r'^alias\b.*=', "don't use alias, use a function"),
                 (r'if\s*!', "don't use '!' to negate exit status"),
                 (r'/dev/u?random', "don't use entropy, use /dev/zero"),
                 (r'do\s*true;\s*done', "don't use true as loop body, use sleep 0"),
                 (r'^( *)\t', "don't use tabs to indent"),
                 (r'sed (-e )?\'(\d+|/[^/]*/)i(?!\\\n)',
                  "put a backslash-escaped newline after sed 'i' command"),
                 (r'^diff *-\w*u.*$\n(^  \$ |^$)', "prefix diff -u with cmp"),
               ],
               # warnings
               [
                 (r'^function', "don't use 'function', use old style"),
                 (r'^diff.*-\w*N', "don't use 'diff -N'"),
                 (r'\$PWD|\${PWD}', "don't use $PWD, use `pwd`"),
                 (r'^([^"\'\n]|("[^"\n]*")|(\'[^\'\n]*\'))*\^', "^ must be quoted"),
                 (r'kill (`|\$\()', "don't use kill, use killdaemons.py")
               ]
             ]
             testfilters = [
                 (r"( *)(#([^\n]*\S)?)", repcomment),
                 (r"<<(\S+)((.|\n)*?\n\1)", rephere),
             ]
             winglobmsg = "use (glob) to match Windows paths too"
             uprefix = r"^  \$ "
             utestpats = [
               [
                 (r'^(\S.*||  [$>] .*)[ \t]\n', "trailing whitespace on non-output"),
                 (uprefix + r'.*\|\s*sed[^|>\n]*\n',
                  "use regex test output patterns instead of sed"),
                 (uprefix + r'(true|exit 0)', "explicit zero exit unnecessary"),
                 (uprefix + r'.*(?<!\[)\$\?', "explicit exit code checks unnecessary"),
                 (uprefix + r'.*\|\| echo.*(fail|error)',
                  "explicit exit code checks unnecessary"),
                 (uprefix + r'set -e', "don't use set -e"),
                 (uprefix + r'(\s|fi\b|done\b)', "use > for continued lines"),
                 (uprefix + r'.*:\.\S*/', "x:.y in a path does not work on msys, rewrite "
                  "as x://.y, or see `hg log -k msys` for alternatives", r'-\S+:\.|' #-Rxxx
-                 'hg pull -q file:../test'), # in test-pull.t which is skipped on windows
+                 '# no-msys'), # in test-pull.t which is skipped on windows
                 (r'^  saved backup bundle to \$TESTTMP.*\.hg$', winglobmsg),
                 (r'^  changeset .* references (corrupted|missing) \$TESTTMP/.*[^)]$',
                  winglobmsg),
                 (r'^  pulling from \$TESTTMP/.*[^)]$', winglobmsg,
                  '\$TESTTMP/unix-repo$'), # in test-issue1802.t which skipped on windows
                 (r'^  reverting (?!subrepo ).*/.*[^)]$', winglobmsg),
                 (r'^  cloning subrepo \S+/.*[^)]$', winglobmsg),
                 (r'^  pushing to \$TESTTMP/.*[^)]$', winglobmsg),
                 (r'^  pushing subrepo \S+/\S+ to.*[^)]$', winglobmsg),
                 (r'^  moving \S+/.*[^)]$', winglobmsg),
                 (r'^  no changes made to subrepo since.*/.*[^)]$', winglobmsg),
                 (r'^  .*: largefile \S+ not available from file:.*/.*[^)]$', winglobmsg),
                 (r'^  .*file://\$TESTTMP',
                  'write "file:/*/$TESTTMP" + (glob) to match on windows too'),
                 (r'^  (cat|find): .*: No such file or directory',
                  'use test -f to test for file existence'),
               ],
               # warnings
               [
                 (r'^  [^*?/\n]* \(glob\)$',
                  "glob match with no glob character (?*/)"),
               ]
             ]
             for i in [0, 1]:
                 for tp in testpats[i]:
                     p = tp[0]
                     m = tp[1]
                     if p.startswith(r'^'):
                         p = r"^  [$>] (%s)" % p[1:]
                     else:
                         p = r"^  [$>] .*(%s)" % p
                     utestpats[i].append((p, m) + tp[2:])
             utestfilters = [
                 (r"<<(\S+)((.|\n)*?\n  > \1)", rephere),
                 (r"( *)(#([^\n]*\S)?)", repcomment),
             ]
             pypats = [
               [
                 (r'\([^)]*\*\w[^()]+\w+=', "can't pass varargs with keyword in Py2.5"),
                 (r'^\s*def\s*\w+\s*\(.*,\s*\(',
                  "tuple parameter unpacking not available in Python 3+"),
                 (r'lambda\s*\(.*,.*\)',
                  "tuple parameter unpacking not available in Python 3+"),
                 (r'import (.+,[^.]+\.[^.]+|[^.]+\.[^.]+,)',
                  '2to3 can\'t always rewrite "import qux, foo.bar", '
                  'use "import foo.bar" on its own line instead.'),
                 (r'(?<!def)\s+(cmp)\(', "cmp is not available in Python 3+"),
                 (r'\breduce\s*\(.*', "reduce is not available in Python 3+"),
                 (r'dict\(.*=', 'dict() is different in Py2 and 3 and is slower than {}',
                  'dict-from-generator'),
                 (r'\.has_key\b', "dict.has_key is not available in Python 3+"),
                 (r'\s<>\s', '<> operator is not available in Python 3+, use !='),
                 (r'^\s*\t', "don't use tabs"),
                 (r'\S;\s*\n', "semicolon"),
                 (r'[^_]_\([ \t\n]*(?:"[^"]+"[ \t\n+]*)+%', "don't use % inside _()"),
                 (r"[^_]_\([ \t\n]*(?:'[^']+'[ \t\n+]*)+%", "don't use % inside _()"),
                 (r'(\w|\)),\w', "missing whitespace after ,"),
                 (r'(\w|\))[+/*\-<>]\w', "missing whitespace in expression"),
                 (r'^\s+(\w|\.)+=\w[^,()\n]*$', "missing whitespace in assignment"),
                 (r'(\s+)try:\n((?:\n|\1\s.*\n)+?)(\1except.*?:\n'
                  r'((?:\n|\1\s.*\n)+?))+\1finally:',
                  'no try/except/finally in Python 2.4'),
                 (r'(?<!def)(\s+|^|\()next\(.+\)',
                  'no next(foo) in Python 2.4 and 2.5, use foo.next() instead'),
                 (r'(\s+)try:\n((?:\n|\1\s.*\n)*?)\1\s*yield\b.*?'
                  r'((?:\n|\1\s.*\n)+?)\1finally:',
                  'no yield inside try/finally in Python 2.4'),
                 (r'.{81}', "line too long"),
                 (r' x+[xo][\'"]\n\s+[\'"]x', 'string join across lines with no space'),
                 (r'[^\n]\Z', "no trailing newline"),
                 (r'(\S[ \t]+|^[ \t]+)\n', "trailing whitespace"),
             #    (r'^\s+[^_ \n][^_. \n]+_[^_\n]+\s*=',
             #     "don't use underbars in identifiers"),
                 (r'^\s+(self\.)?[A-za-z][a-z0-9]+[A-Z]\w* = ',
                  "don't use camelcase in identifiers"),
                 (r'^\s*(if|while|def|class|except|try)\s[^[\n]*:\s*[^\\n]#\s]+',
                  "linebreak after :"),
                 (r'class\s[^( \n]+:', "old-style class, use class foo(object)"),
                 (r'class\s[^( \n]+\(\):',
                  "class foo() not available in Python 2.4, use class foo(object)"),
                 (r'\b(%s)\(' % '|'.join(keyword.kwlist),
                  "Python keyword is not a function"),
                 (r',]', "unneeded trailing ',' in list"),
             #    (r'class\s[A-Z][^\(]*\((?!Exception)',
             #     "don't capitalize non-exception classes"),
             #    (r'in range\(', "use xrange"),
             #    (r'^\s*print\s+', "avoid using print in core and extensions"),
                 (r'[\x80-\xff]', "non-ASCII character literal"),
                 (r'("\')\.format\(', "str.format() not available in Python 2.4"),
                 (r'^\s*with\s+', "with not available in Python 2.4"),
                 (r'\.isdisjoint\(', "set.isdisjoint not available in Python 2.4"),
                 (r'^\s*except.* as .*:', "except as not available in Python 2.4"),
                 (r'^\s*os\.path\.relpath', "relpath not available in Python 2.4"),
                 (r'(?<!def)\s+(any|all|format)\(',
                  "any/all/format not available in Python 2.4", 'no-py24'),
                 (r'if\s.*\selse', "if ... else form not available in Python 2.4"),
                 (r'^\s*(%s)\s\s' % '|'.join(keyword.kwlist),
                  "gratuitous whitespace after Python keyword"),
                 (r'([\(\[][ \t]\S)|(\S[ \t][\)\]])', "gratuitous whitespace in () or []"),
             #    (r'\s\s=', "gratuitous whitespace before ="),
                 (r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\S',
                  "missing whitespace around operator"),
                 (r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\s',
                  "missing whitespace around operator"),
                 (r'\s(\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\S',
                  "missing whitespace around operator"),
                 (r'[^^+=*/!<>&| %-](\s=|=\s)[^= ]',
                  "wrong whitespace around ="),
                 (r'\([^()]*( =[^=]|[^<>!=]= )',
                  "no whitespace around = for named parameters"),
                 (r'raise Exception', "don't raise generic exceptions"),
                 (r'raise [^,(]+, (\([^\)]+\)|[^,\(\)]+)$',
                  "don't use old-style two-argument raise, use Exception(message)"),
                 (r' is\s+(not\s+)?["\'0-9-]', "object comparison with literal"),
                 (r' [=!]=\s+(True|False|None)',
                  "comparison with singleton, use 'is' or 'is not' instead"),
                 (r'^\s*(while|if) [01]:',
                  "use True/False for constant Boolean expression"),
                 (r'(?:(?<!def)\s+|\()hasattr',
                  'hasattr(foo, bar) is broken, use util.safehasattr(foo, bar) instead'),
                 (r'opener\([^)]*\).read\(',
                  "use opener.read() instead"),
                 (r'BaseException', 'not in Python 2.4, use Exception'),
                 (r'os\.path\.relpath', 'os.path.relpath is not in Python 2.5'),
                 (r'opener\([^)]*\).write\(',
                  "use opener.write() instead"),
                 (r'[\s\(](open|file)\([^)]*\)\.read\(',
                  "use util.readfile() instead"),
                 (r'[\s\(](open|file)\([^)]*\)\.write\(',
                  "use util.writefile() instead"),
                 (r'^[\s\(]*(open(er)?|file)\([^)]*\)',
                  "always assign an opened file to a variable, and close it afterwards"),
                 (r'[\s\(](open|file)\([^)]*\)\.',
                  "always assign an opened file to a variable, and close it afterwards"),
                 (r'(?i)descend[e]nt', "the proper spelling is descendAnt"),
                 (r'\.debug\(\_', "don't mark debug messages for translation"),
                 (r'\.strip\(\)\.split\(\)', "no need to strip before splitting"),
                 (r'^\s*except\s*:', "naked except clause", r'#.*re-raises'),
                 (r':\n(    )*( ){1,3}[^ ]', "must indent 4 spaces"),
                 (r'ui\.(status|progress|write|note|warn)\([\'\"]x',
                  "missing _() in ui message (use () to hide false-positives)"),
                 (r'release\(.*wlock, .*lock\)', "wrong lock release order"),
                 (r'\b__bool__\b', "__bool__ should be __nonzero__ in Python 2"),
               ],
               # warnings
               [
                 (r'(^| )pp +xxxxqq[ \n][^\n]', "add two newlines after '.. note::'"),
               ]
             ]
             pyfilters = [
                 (r"""(?msx)(?P<comment>\#.*?$)|
                      ((?P<quote>('''|\"\"\"|(?<!')'(?!')|(?<!")"(?!")))
                       (?P<text>(([^\\]|\\.)*?))
                       (?P=quote))""", reppython),
             ]
             txtfilters = []
             txtpats = [
               [
                 ('\s$', 'trailing whitespace'),
                 ('.. note::[ \n][^\n]', 'add two newlines after note::')
               ],
               []
             ]
             cpats = [
               [
                 (r'//', "don't use //-style comments"),
                 (r'^  ', "don't use spaces to indent"),
                 (r'\S\t', "don't use tabs except for indent"),
                 (r'(\S[ \t]+|^[ \t]+)\n', "trailing whitespace"),
                 (r'.{81}', "line too long"),
                 (r'(while|if|do|for)\(', "use space after while/if/do/for"),
                 (r'return\(', "return is not a function"),
                 (r' ;', "no space before ;"),
                 (r'[)][{]', "space between ) and {"),
                 (r'\w+\* \w+', "use int *foo, not int* foo"),
                 (r'\W\([^\)]+\) \w+', "use (int)foo, not (int) foo"),
                 (r'\w+ (\+\+|--)', "use foo++, not foo ++"),
                 (r'\w,\w', "missing whitespace after ,"),
                 (r'^[^#]\w[+/*]\w', "missing whitespace in expression"),
                 (r'^#\s+\w', "use #foo, not # foo"),
                 (r'[^\n]\Z', "no trailing newline"),
                 (r'^\s*#import\b', "use only #include in standard C code"),
               ],
               # warnings
               []
             ]
             cfilters = [
                 (r'(/\*)(((\*(?!/))|[^*])*)\*/', repccomment),
                 (r'''(?P<quote>(?<!")")(?P<text>([^"]|\\")+)"(?!")''', repquote),
                 (r'''(#\s*include\s+<)([^>]+)>''', repinclude),
                 (r'(\()([^)]+\))', repcallspaces),
             ]
             inutilpats = [
               [
                 (r'\bui\.', "don't use ui in util"),
               ],
               # warnings
               []
             ]
             inrevlogpats = [
               [
                 (r'\brepo\.', "don't use repo in revlog"),
               ],
               # warnings
               []
             ]
             webtemplatefilters = []
             webtemplatepats = [
               [],
               [
                 (r'{desc(\|(?!websub|firstline)[^\|]*)+}',
                  'follow desc keyword with either firstline or websub'),
               ]
             ]
             checks = [
                 ('python', r'.*\.(py|cgi)$', r'^#!.*python', pyfilters, pypats),
                 ('test script', r'(.*/)?test-[^.~]*$', '', testfilters, testpats),
                 ('c', r'.*\.[ch]$', '', cfilters, cpats),
                 ('unified test', r'.*\.t$', '', utestfilters, utestpats),
                 ('layering violation repo in revlog', r'mercurial/revlog\.py', '',
                  pyfilters, inrevlogpats),
                 ('layering violation ui in util', r'mercurial/util\.py', '', pyfilters,
                  inutilpats),
                 ('txt', r'.*\.txt$', '', txtfilters, txtpats),
                 ('web template', r'mercurial/templates/.*\.tmpl', '',
                  webtemplatefilters, webtemplatepats),
             ]
             def _preparepats():
                 for c in checks:
                     failandwarn = c[-1]
                     for pats in failandwarn:
                         for i, pseq in enumerate(pats):
                             # fix-up regexes for multi-line searches
                             p = pseq[0]
                             # \s doesn't match \n
                             p = re.sub(r'(?<!\\)\\s', r'[ \\t]', p)
                             # [^...] doesn't match newline
                             p = re.sub(r'(?<!\\)\[\^', r'[^\\n', p)
                             pats[i] = (re.compile(p, re.MULTILINE),) + pseq[1:]
                     filters = c[3]
                     for i, flt in enumerate(filters):
                         filters[i] = re.compile(flt[0]), flt[1]
             _preparepats()
             class norepeatlogger(object):
                 def __init__(self):
                     self._lastseen = None
                 def log(self, fname, lineno, line, msg, blame):
                     """print error related a to given line of a given file.
                     The faulty line will also be printed but only once in the case
                     of multiple errors.
                     :fname: filename
                     :lineno: line number
                     :line: actual content of the line
                     :msg: error message
                     """
                     msgid = fname, lineno, line
                     if msgid != self._lastseen:
                         if blame:
                             print "%s:%d (%s):" % (fname, lineno, blame)
                         else:
                             print "%s:%d:" % (fname, lineno)
                         print " > %s" % line
                         self._lastseen = msgid
                     print " " + msg
             _defaultlogger = norepeatlogger()
             def getblame(f):
                 lines = []
                 for l in os.popen('hg annotate -un %s' % f):
                     start, line = l.split(':', 1)
                     user, rev = start.split()
                     lines.append((line[1:-1], user, rev))
                 return lines
             def checkfile(f, logfunc=_defaultlogger.log, maxerr=None, warnings=False,
                           blame=False, debug=False, lineno=True):
                 """checks style and portability of a given file
                 :f: filepath
                 :logfunc: function used to report error
                           logfunc(filename, linenumber, linecontent, errormessage)
                 :maxerr: number of error to display before aborting.
                          Set to false (default) to report all errors
                 return True if no error is found, False otherwise.
                 """
                 blamecache = None
                 result = True
                 try:
                     fp = open(f)
                 except IOError, e:
                     print "Skipping %s, %s" % (f, str(e).split(':', 1)[0])
                     return result
                 pre = post = fp.read()
                 fp.close()
                 for name, match, magic, filters, pats in checks:
                     if debug:
                         print name, f
                     fc = 0
                     if not (re.match(match, f) or (magic and re.search(magic, f))):
                         if debug:
                             print "Skipping %s for %s it doesn't match %s" % (
                                    name, match, f)
                         continue
                     if "no-" "check-code" in pre:
                         print "Skipping %s it has no-" "check-code" % f
                         return "Skip" # skip checking this file
                     for p, r in filters:
                         post = re.sub(p, r, post)
                     nerrs = len(pats[0]) # nerr elements are errors
                     if warnings:
                         pats = pats[0] + pats[1]
                     else:
                         pats = pats[0]
                     # print post # uncomment to show filtered version
                     if debug:
                         print "Checking %s for %s" % (name, f)
                     prelines = None
                     errors = []
                     for i, pat in enumerate(pats):
                         if len(pat) == 3:
                             p, msg, ignore = pat
                         else:
                             p, msg = pat
                             ignore = None
                         if i >= nerrs:
                             msg = "warning: " + msg
                         pos = 0
                         n = 0
                         for m in p.finditer(post):
                             if prelines is None:
                                 prelines = pre.splitlines()
                                 postlines = post.splitlines(True)
                             start = m.start()
                             while n < len(postlines):
                                 step = len(postlines[n])
                                 if pos + step > start:
                                     break
                                 pos += step
                                 n += 1
                             l = prelines[n]
                             if ignore and re.search(ignore, l, re.MULTILINE):
                                 if debug:
                                     print "Skipping %s for %s:%s (ignore pattern)" % (
                                         name, f, n)
                                 continue
                             bd = ""
                             if blame:
                                 bd = 'working directory'
                                 if not blamecache:
                                     blamecache = getblame(f)
                                 if n < len(blamecache):
                                     bl, bu, br = blamecache[n]
                                     if bl == l:
                                         bd = '%s@%s' % (bu, br)
                             errors.append((f, lineno and n + 1, l, msg, bd))
                             result = False
                     errors.sort()
                     for e in errors:
                         logfunc(*e)
                         fc += 1
                         if maxerr and fc >= maxerr:
                             print " (too many errors, giving up)"
                             break
                 return result
             if __name__ == "__main__":
                 parser = optparse.OptionParser("%prog [options] [files]")
                 parser.add_option("-w", "--warnings", action="store_true",
                                   help="include warning-level checks")
                 parser.add_option("-p", "--per-file", type="int",
                                   help="max warnings per file")
                 parser.add_option("-b", "--blame", action="store_true",
                                   help="use annotate to generate blame info")
                 parser.add_option("", "--debug", action="store_true",
                                   help="show debug information")
                 parser.add_option("", "--nolineno", action="store_false",
                                   dest='lineno', help="don't show line numbers")
                 parser.set_defaults(per_file=15, warnings=False, blame=False, debug=False,
                                     lineno=True)
                 (options, args) = parser.parse_args()
                 if len(args) == 0:
                     check = glob.glob("*")
                 else:
                     check = args
                 ret = 0
                 for f in check:
                     if not checkfile(f, maxerr=options.per_file, warnings=options.warnings,
                                      blame=options.blame, debug=options.debug,
                                      lineno=options.lineno):
                         ret = 1
                 sys.exit(ret)

             #require serve
               $ hg init test
               $ cd test
               $ echo foo>foo
               $ hg addremove
               adding foo
               $ hg commit -m 1
               $ hg verify
               checking changesets
               checking manifests
               crosschecking files in changesets and manifests
               checking files
 files, 1 changesets, 1 total revisions
               $ hg serve -p $HGPORT -d --pid-file=hg.pid
               $ cat hg.pid >> $DAEMON_PIDS
               $ cd ..
               $ hg clone --pull http://foo:bar@localhost:$HGPORT/ copy
               requesting all changes
               adding changesets
               adding manifests
               adding file changes
               added 1 changesets with 1 changes to 1 files
               updating to branch default
 files updated, 0 files merged, 0 files removed, 0 files unresolved
               $ cd copy
               $ hg verify
               checking changesets
               checking manifests
               crosschecking files in changesets and manifests
               checking files
 files, 1 changesets, 1 total revisions
               $ hg co
 files updated, 0 files merged, 0 files removed, 0 files unresolved
               $ cat foo
               foo
               $ hg manifest --debug
 ed2a3912a0b24502043eae84ee4b279c18b90dd 644   foo
               $ hg pull
               pulling from http://foo@localhost:$HGPORT/
               searching for changes
               no changes found
               $ hg rollback --dry-run --verbose
               repository tip rolled back to revision -1 (undo pull: http://foo:***@localhost:$HGPORT/)
             Issue622: hg init && hg pull -u URL doesn't checkout default branch
               $ cd ..
               $ hg init empty
               $ cd empty
               $ hg pull -u ../test
               pulling from ../test
               requesting all changes
               adding changesets
               adding manifests
               adding file changes
               added 1 changesets with 1 changes to 1 files
 files updated, 0 files merged, 0 files removed, 0 files unresolved
             Test 'file:' uri handling:
               $ hg pull -q file://../test-does-not-exist
               abort: file:// URLs can only refer to localhost
               [255]
               $ hg pull -q file://../test
               abort: file:// URLs can only refer to localhost
               [255]
-              $ hg pull -q file:../test
+              $ hg pull -q file:../test  # no-msys
             It's tricky to make file:// URLs working on every platform with
             regular shell commands.
               $ URL=`$PYTHON -c "import os; print 'file://foobar' + ('/' + os.getcwd().replace(os.sep, '/')).replace('//', '/') + '/../test'"`
               $ hg pull -q "$URL"
               abort: file:// URLs can only refer to localhost
               [255]
               $ URL=`$PYTHON -c "import os; print 'file://localhost' + ('/' + os.getcwd().replace(os.sep, '/')).replace('//', '/') + '/../test'"`
               $ hg pull -q "$URL"
               $ cd ..