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#!/usr/bin/env python
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#
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# check-code - a style and portability checker for Mercurial
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#
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# Copyright 2010 Matt Mackall <mpm@selenic.com>
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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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# GNU General Public License version 2 or any later version.
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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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* do the work-around the rule suggests
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* doublecheck that it is a false match
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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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(you can append a short comment and match this, like: #re-raises)
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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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"""
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from __future__ import absolute_import, print_function
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import glob
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import keyword
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import optparse
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import os
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import re
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import sys
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if sys.version_info[0] < 3:
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opentext = open
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else:
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def opentext(f):
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return open(f, encoding='latin1')
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try:
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xrange
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except NameError:
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xrange = range
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try:
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import re2
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except ImportError:
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re2 = None
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import testparseutil
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def compilere(pat, multiline=False):
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if multiline:
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pat = '(?m)' + pat
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if re2:
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try:
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return re2.compile(pat)
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except re2.error:
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pass
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return re.compile(pat)
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# check "rules depending on implementation of repquote()" in each
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# patterns (especially pypats), before changing around repquote()
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_repquotefixedmap = {
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' ': ' ',
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'\n': '\n',
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'.': 'p',
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':': 'q',
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'%': '%',
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'\\': 'b',
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'*': 'A',
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'+': 'P',
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'-': 'M',
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}
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def _repquoteencodechr(i):
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if i > 255:
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return 'u'
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c = chr(i)
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if c in _repquotefixedmap:
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return _repquotefixedmap[c]
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if c.isalpha():
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return 'x'
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if c.isdigit():
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return 'n'
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return 'o'
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_repquotett = ''.join(_repquoteencodechr(i) for i in xrange(256))
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def repquote(m):
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t = m.group('text')
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t = t.translate(_repquotett)
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return m.group('quote') + t + m.group('quote')
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def reppython(m):
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comment = m.group('comment')
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if comment:
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l = len(comment.rstrip())
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return "#" * l + comment[l:]
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return repquote(m)
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def repcomment(m):
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return m.group(1) + "#" * len(m.group(2))
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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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return m.group(1) + t + "*/"
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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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return m.group(1) + t
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def repinclude(m):
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return m.group(1) + "<foo>"
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def rephere(m):
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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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testpats = [
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[
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(r'\b(push|pop)d\b', "don't use 'pushd' or 'popd', use 'cd'"),
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(r'\W\$?\(\([^\)\n]*\)\)', "don't use (()) or $(()), use 'expr'"),
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(r'grep.*-q', "don't use 'grep -q', redirect to /dev/null"),
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(r'(?<!hg )grep.* -a', "don't use 'grep -a', use in-line python"),
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(r'sed.*-i', "don't use 'sed -i', use a temporary file"),
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(r'\becho\b.*\\n', "don't use 'echo \\n', use printf"),
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(r'echo -n', "don't use 'echo -n', use printf"),
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(r'(^|\|\s*)\bwc\b[^|]*$\n(?!.*\(re\))', "filter wc output"),
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(r'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'sha1sum', "don't use sha1sum, use $TESTDIR/md5sum.py"),
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(r'\bls\b.*-\w*R', "don't use 'ls -R', use 'find'"),
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(r'printf.*[^\\]\\([1-9]|0\d)', r"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'rm -rf \*', "don't use naked rm -rf, target a directory"),
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(
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r'\[[^\]]+==',
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'[ foo == bar ] is a bashism, use [ foo = bar ] instead',
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),
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(
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r'(^|\|\s*)grep (-\w\s+)*[^|]*[(|]\w',
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"use egrep for extended grep syntax",
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),
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(r'(^|\|\s*)e?grep .*\\S', "don't use \\S in regular expression"),
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(r'(?<!!)/bin/', "don't use explicit paths for tools"),
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(r'#!.*/bash', "don't use bash in shebang, use sh"),
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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'^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'\bls +[^|\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'^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'\[\[\s+[^\]]*\]\]', "don't use '[[ ]]', use '[ ]'"),
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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'/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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(
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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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),
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(r'^diff *-\w*[uU].*$\n(^ \$ |^$)', "prefix diff -u/-U with cmp"),
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(r'^\s+(if)? diff *-\w*[uU]', "prefix diff -u/-U with cmp"),
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(r'[\s="`\']python\s(?!bindings)', "don't use 'python', use '$PYTHON'"),
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(r'seq ', "don't use 'seq', use $TESTDIR/seq.py"),
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(r'\butil\.Abort\b', "directly use error.Abort"),
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(r'\|&', "don't use |&, use 2>&1"),
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(r'\w = +\w', "only one space after = allowed"),
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(
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r'\bsed\b.*[^\\]\\n',
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"don't use 'sed ... \\n', use a \\ and a newline",
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),
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(r'env.*-u', "don't use 'env -u VAR', use 'unset VAR'"),
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(r'cp.* -r ', "don't use 'cp -r', use 'cp -R'"),
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(r'grep.* -[ABC]', "don't use grep's context flags"),
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(
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r'find.*-printf',
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"don't use 'find -printf', it doesn't exist on BSD find(1)",
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),
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(r'\$RANDOM ', "don't use bash-only $RANDOM to generate random values"),
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],
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# warnings
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[
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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'\$PWD|\${PWD}', "don't use $PWD, use `pwd`"),
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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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],
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]
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testfilters = [
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(r"( *)(#([^!][^\n]*\S)?)", repcomment),
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(r"<<(\S+)((.|\n)*?\n\1)", rephere),
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]
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uprefix = r"^ \$ "
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utestpats = [
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[
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(r'^(\S.*|| [$>] \S.*)[ \t]\n', "trailing whitespace on non-output"),
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(
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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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),
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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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(
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uprefix + r'.*\|\| echo.*(fail|error)',
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"explicit exit code checks unnecessary",
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),
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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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(
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uprefix + r'.*:\.\S*/',
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"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",
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r'-\S+:\.|' '# no-msys', # -Rxxx
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), # in test-pull.t which is skipped on windows
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(
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r'^ [^$>].*27\.0\.0\.1',
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'use $LOCALIP not an explicit loopback address',
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),
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(
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r'^ (?![>$] ).*\$LOCALIP.*[^)]$',
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'mark $LOCALIP output lines with (glob) to help tests in BSD jails',
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),
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(
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r'^ (cat|find): .*: \$ENOENT\$',
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'use test -f to test for file existence',
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),
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(
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r'^ diff -[^ -]*p',
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"don't use (external) diff with -p for portability",
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),
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(r' readlink ', 'use readlink.py instead of readlink'),
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(
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r'^ [-+][-+][-+] .* [-+]0000 \(glob\)',
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"glob timezone field in diff output for portability",
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),
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(
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r'^ @@ -[0-9]+ [+][0-9]+,[0-9]+ @@',
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"use '@@ -N* +N,n @@ (glob)' style chunk header for portability",
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),
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(
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r'^ @@ -[0-9]+,[0-9]+ [+][0-9]+ @@',
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"use '@@ -N,n +N* @@ (glob)' style chunk header for portability",
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),
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(
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r'^ @@ -[0-9]+ [+][0-9]+ @@',
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"use '@@ -N* +N* @@ (glob)' style chunk header for portability",
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),
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(
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uprefix + r'hg( +-[^ ]+( +[^ ]+)?)* +extdiff'
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r'( +(-[^ po-]+|--(?!program|option)[^ ]+|[^-][^ ]*))*$',
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"use $RUNTESTDIR/pdiff via extdiff (or -o/-p for false-positives)",
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),
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],
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# warnings
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[
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(
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r'^ (?!.*\$LOCALIP)[^*?/\n]* \(glob\)$',
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"glob match with no glob string (?, *, /, and $LOCALIP)",
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),
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],
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]
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# transform plain test rules to unified test's
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for i in [0, 1]:
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for tp in testpats[i]:
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p = tp[0]
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m = tp[1]
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if p.startswith(r'^'):
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p = r"^ [$>] (%s)" % p[1:]
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else:
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p = r"^ [$>] .*(%s)" % p
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utestpats[i].append((p, m) + tp[2:])
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# don't transform the following rules:
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# " > \t" and " \t" should be allowed in unified tests
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testpats[0].append((r'^( *)\t', "don't use tabs to indent"))
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utestpats[0].append((r'^( ?)\t', "don't use tabs to indent"))
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utestfilters = [
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(r"<<(\S+)((.|\n)*?\n > \1)", rephere),
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(r"( +)(#([^!][^\n]*\S)?)", repcomment),
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]
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# common patterns to check *.py
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commonpypats = [
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[
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(r'\\$', 'Use () to wrap long lines in Python, not \\'),
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(
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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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),
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(
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r'lambda\s*\(.*,.*\)',
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"tuple parameter unpacking not available in Python 3+",
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),
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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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(
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r'\bdict\(.*=',
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'dict() is different in Py2 and 3 and is slower than {}',
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'dict-from-generator',
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),
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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*\t', "don't use tabs"),
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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"[^_]_\([ \t\n]*(?:'[^']+'[ \t\n+]*)+%", "don't use % inside _()"),
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(r'(\w|\)),\w', "missing whitespace after ,"),
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(r'(\w|\))[+/*\-<>]\w', "missing whitespace in expression"),
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(r'\w\s=\s\s+\w', "gratuitous whitespace after ="),
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(
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(
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# a line ending with a colon, potentially with trailing comments
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r':([ \t]*#[^\n]*)?\n'
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# one that is not a pass and not only a comment
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r'(?P<indent>[ \t]+)[^#][^\n]+\n'
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# more lines at the same indent level
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r'((?P=indent)[^\n]+\n)*'
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# a pass at the same indent level, which is bogus
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r'(?P=indent)pass[ \t\n#]'
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),
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'omit superfluous pass',
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),
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(r'[^\n]\Z', "no trailing newline"),
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(r'(\S[ \t]+|^[ \t]+)\n', "trailing whitespace"),
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(
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r'^\s+(self\.)?[A-Za-z][a-z0-9]+[A-Z]\w* = ',
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"don't use camelcase in identifiers",
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r'#.*camelcase-required',
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),
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(
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r'^\s*(if|while|def|class|except|try)\s[^[\n]*:\s*[^\\n]#\s]+',
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"linebreak after :",
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),
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(
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r'class\s[^( \n]+:',
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"old-style class, use class foo(object)",
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r'#.*old-style',
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),
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(
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r'class\s[^( \n]+\(\):',
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"class foo() creates old style object, use class foo(object)",
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r'#.*old-style',
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),
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(
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r'\b(%s)\('
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% '|'.join(k for k in keyword.kwlist if k not in ('print', 'exec')),
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"Python keyword is not a function",
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),
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# (r'class\s[A-Z][^\(]*\((?!Exception)',
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# "don't capitalize non-exception classes"),
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# (r'in range\(', "use xrange"),
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# (r'^\s*print\s+', "avoid using print in core and extensions"),
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(r'[\x80-\xff]', "non-ASCII character literal"),
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(r'("\')\.format\(', "str.format() has no bytes counterpart, use %"),
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(
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r'([\(\[][ \t]\S)|(\S[ \t][\)\]])',
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"gratuitous whitespace in () or []",
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),
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# (r'\s\s=', "gratuitous whitespace before ="),
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(
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r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\S',
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"missing whitespace around operator",
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),
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(
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r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\s',
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"missing whitespace around operator",
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),
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(
|
|
|
r'\s(\+=|-=|!=|<>|<=|>=|<<=|>>=|%=)\S',
|
|
|
"missing whitespace around operator",
|
|
|
),
|
|
|
(r'[^^+=*/!<>&| %-](\s=|=\s)[^= ]', "wrong whitespace around ="),
|
|
|
(
|
|
|
r'\([^()]*( =[^=]|[^<>!=]= )',
|
|
|
"no whitespace around = for named parameters",
|
|
|
),
|
|
|
(
|
|
|
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'^\s*if False(:| +and)', 'Remove code instead of using `if False`'),
|
|
|
(
|
|
|
r'(?:(?<!def)\s+|\()hasattr\(',
|
|
|
'hasattr(foo, bar) is broken on py2, use util.safehasattr(foo, bar) '
|
|
|
'instead',
|
|
|
r'#.*hasattr-py3-only',
|
|
|
),
|
|
|
(r'opener\([^)]*\).read\(', "use opener.read() instead"),
|
|
|
(r'opener\([^)]*\).write\(', "use opener.write() instead"),
|
|
|
(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'^\s*except\s([^\(,]+|\([^\)]+\))\s*,',
|
|
|
'legacy exception syntax; use "as" instead of ","',
|
|
|
),
|
|
|
(r'release\(.*wlock, .*lock\)', "wrong lock release order"),
|
|
|
(r'\bdef\s+__bool__\b', "__bool__ should be __nonzero__ in Python 2"),
|
|
|
(
|
|
|
r'os\.path\.join\(.*, *(""|\'\')\)',
|
|
|
"use pathutil.normasprefix(path) instead of os.path.join(path, '')",
|
|
|
),
|
|
|
(r'\s0[0-7]+\b', 'legacy octal syntax; use "0o" prefix instead of "0"'),
|
|
|
# XXX only catch mutable arguments on the first line of the definition
|
|
|
(r'def.*[( ]\w+=\{\}', "don't use mutable default arguments"),
|
|
|
(r'\butil\.Abort\b', "directly use error.Abort"),
|
|
|
(
|
|
|
r'^@(\w*\.)?cachefunc',
|
|
|
"module-level @cachefunc is risky, please avoid",
|
|
|
),
|
|
|
(
|
|
|
r'^import Queue',
|
|
|
"don't use Queue, use pycompat.queue.Queue + "
|
|
|
"pycompat.queue.Empty",
|
|
|
),
|
|
|
(
|
|
|
r'^import cStringIO',
|
|
|
"don't use cStringIO.StringIO, use util.stringio",
|
|
|
),
|
|
|
(r'^import urllib', "don't use urllib, use util.urlreq/util.urlerr"),
|
|
|
(
|
|
|
r'^import SocketServer',
|
|
|
"don't use SockerServer, use util.socketserver",
|
|
|
),
|
|
|
(r'^import urlparse', "don't use urlparse, use util.urlreq"),
|
|
|
(r'^import xmlrpclib', "don't use xmlrpclib, use util.xmlrpclib"),
|
|
|
(r'^import cPickle', "don't use cPickle, use util.pickle"),
|
|
|
(r'^import pickle', "don't use pickle, use util.pickle"),
|
|
|
(r'^import httplib', "don't use httplib, use util.httplib"),
|
|
|
(r'^import BaseHTTPServer', "use util.httpserver instead"),
|
|
|
(
|
|
|
r'^(from|import) mercurial\.(cext|pure|cffi)',
|
|
|
"use mercurial.policy.importmod instead",
|
|
|
),
|
|
|
(r'\.next\(\)', "don't use .next(), use next(...)"),
|
|
|
(
|
|
|
r'([a-z]*).revision\(\1\.node\(',
|
|
|
"don't convert rev to node before passing to revision(nodeorrev)",
|
|
|
),
|
|
|
(r'platform\.system\(\)', "don't use platform.system(), use pycompat"),
|
|
|
],
|
|
|
# warnings
|
|
|
[],
|
|
|
]
|
|
|
|
|
|
# patterns to check normal *.py files
|
|
|
pypats = [
|
|
|
[
|
|
|
# Ideally, these should be placed in "commonpypats" for
|
|
|
# consistency of coding rules in Mercurial source tree.
|
|
|
# But on the other hand, these are not so seriously required for
|
|
|
# python code fragments embedded in test scripts. Fixing test
|
|
|
# scripts for these patterns requires many changes, and has less
|
|
|
# profit than effort.
|
|
|
(r'raise Exception', "don't raise generic exceptions"),
|
|
|
(r'[\s\(](open|file)\([^)]*\)\.read\(', "use util.readfile() instead"),
|
|
|
(
|
|
|
r'[\s\(](open|file)\([^)]*\)\.write\(',
|
|
|
"use util.writefile() instead",
|
|
|
),
|
|
|
(
|
|
|
r'^[\s\(]*(open(er)?|file)\([^)]*\)(?!\.close\(\))',
|
|
|
"always assign an opened file to a variable, and close it afterwards",
|
|
|
),
|
|
|
(
|
|
|
r'[\s\(](open|file)\([^)]*\)\.(?!close\(\))',
|
|
|
"always assign an opened file to a variable, and close it afterwards",
|
|
|
),
|
|
|
(r':\n( )*( ){1,3}[^ ]', "must indent 4 spaces"),
|
|
|
(r'^import atexit', "don't use atexit, use ui.atexit"),
|
|
|
# rules depending on implementation of repquote()
|
|
|
(
|
|
|
r' x+[xpqo%APM][\'"]\n\s+[\'"]x',
|
|
|
'string join across lines with no space',
|
|
|
),
|
|
|
(
|
|
|
r'''(?x)ui\.(status|progress|write|note|warn)\(
|
|
|
[ \t\n#]*
|
|
|
(?# any strings/comments might precede a string, which
|
|
|
# contains translatable message)
|
|
|
b?((['"]|\'\'\'|""")[ \npq%bAPMxno]*(['"]|\'\'\'|""")[ \t\n#]+)*
|
|
|
(?# sequence consisting of below might precede translatable message
|
|
|
# - formatting string: "% 10s", "%05d", "% -3.2f", "%*s", "%%" ...
|
|
|
# - escaped character: "\\", "\n", "\0" ...
|
|
|
# - character other than '%', 'b' as '\', and 'x' as alphabet)
|
|
|
(['"]|\'\'\'|""")
|
|
|
((%([ n]?[PM]?([np]+|A))?x)|%%|b[bnx]|[ \nnpqAPMo])*x
|
|
|
(?# this regexp can't use [^...] style,
|
|
|
# because _preparepats forcibly adds "\n" into [^...],
|
|
|
# even though this regexp wants match it against "\n")''',
|
|
|
"missing _() in ui message (use () to hide false-positives)",
|
|
|
),
|
|
|
]
|
|
|
+ commonpypats[0],
|
|
|
# warnings
|
|
|
[
|
|
|
# rules depending on implementation of repquote()
|
|
|
(r'(^| )pp +xxxxqq[ \n][^\n]', "add two newlines after '.. note::'"),
|
|
|
]
|
|
|
+ commonpypats[1],
|
|
|
]
|
|
|
|
|
|
# patterns to check *.py for embedded ones in test script
|
|
|
embeddedpypats = [
|
|
|
[] + commonpypats[0],
|
|
|
# warnings
|
|
|
[] + commonpypats[1],
|
|
|
]
|
|
|
|
|
|
# common filters to convert *.py
|
|
|
commonpyfilters = [
|
|
|
(
|
|
|
r"""(?msx)(?P<comment>\#.*?$)|
|
|
|
((?P<quote>('''|\"\"\"|(?<!')'(?!')|(?<!")"(?!")))
|
|
|
(?P<text>(([^\\]|\\.)*?))
|
|
|
(?P=quote))""",
|
|
|
reppython,
|
|
|
),
|
|
|
]
|
|
|
|
|
|
# filters to convert normal *.py files
|
|
|
pyfilters = [] + commonpyfilters
|
|
|
|
|
|
# non-filter patterns
|
|
|
pynfpats = [
|
|
|
[
|
|
|
(r'pycompat\.osname\s*[=!]=\s*[\'"]nt[\'"]', "use pycompat.iswindows"),
|
|
|
(r'pycompat\.osname\s*[=!]=\s*[\'"]posix[\'"]', "use pycompat.isposix"),
|
|
|
(
|
|
|
r'pycompat\.sysplatform\s*[!=]=\s*[\'"]darwin[\'"]',
|
|
|
"use pycompat.isdarwin",
|
|
|
),
|
|
|
],
|
|
|
# warnings
|
|
|
[],
|
|
|
]
|
|
|
|
|
|
# filters to convert *.py for embedded ones in test script
|
|
|
embeddedpyfilters = [] + commonpyfilters
|
|
|
|
|
|
# extension non-filter patterns
|
|
|
pyextnfpats = [
|
|
|
[(r'^"""\n?[A-Z]', "don't capitalize docstring title")],
|
|
|
# warnings
|
|
|
[],
|
|
|
]
|
|
|
|
|
|
txtfilters = []
|
|
|
|
|
|
txtpats = [
|
|
|
[
|
|
|
(r'\s$', 'trailing whitespace'),
|
|
|
('.. note::[ \n][^\n]', 'add two newlines after note::'),
|
|
|
],
|
|
|
[],
|
|
|
]
|
|
|
|
|
|
cpats = [
|
|
|
[
|
|
|
(r'//', "don't use //-style comments"),
|
|
|
(r'\S\t', "don't use tabs except for indent"),
|
|
|
(r'(\S[ \t]+|^[ \t]+)\n', "trailing whitespace"),
|
|
|
(r'(while|if|do|for)\(', "use space after while/if/do/for"),
|
|
|
(r'return\(', "return is not a function"),
|
|
|
(r' ;', "no space before ;"),
|
|
|
(r'[^;] \)', "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'\w\s=\s\s+\w', "gratuitous whitespace after ="),
|
|
|
(r'^#\s+\w', "use #foo, not # foo"),
|
|
|
(r'[^\n]\Z', "no trailing newline"),
|
|
|
(r'^\s*#import\b', "use only #include in standard C code"),
|
|
|
(r'strcpy\(', "don't use strcpy, use strlcpy or memcpy"),
|
|
|
(r'strcat\(', "don't use strcat"),
|
|
|
# rules depending on implementation of repquote()
|
|
|
],
|
|
|
# warnings
|
|
|
[
|
|
|
# rules depending on implementation of repquote()
|
|
|
],
|
|
|
]
|
|
|
|
|
|
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',
|
|
|
),
|
|
|
],
|
|
|
]
|
|
|
|
|
|
allfilesfilters = []
|
|
|
|
|
|
allfilespats = [
|
|
|
[
|
|
|
(
|
|
|
r'(http|https)://[a-zA-Z0-9./]*selenic.com/',
|
|
|
'use mercurial-scm.org domain URL',
|
|
|
),
|
|
|
(
|
|
|
r'mercurial@selenic\.com',
|
|
|
'use mercurial-scm.org domain for mercurial ML address',
|
|
|
),
|
|
|
(
|
|
|
r'mercurial-devel@selenic\.com',
|
|
|
'use mercurial-scm.org domain for mercurial-devel ML address',
|
|
|
),
|
|
|
],
|
|
|
# warnings
|
|
|
[],
|
|
|
]
|
|
|
|
|
|
py3pats = [
|
|
|
[
|
|
|
(
|
|
|
r'os\.environ',
|
|
|
"use encoding.environ instead (py3)",
|
|
|
r'#.*re-exports',
|
|
|
),
|
|
|
(r'os\.name', "use pycompat.osname instead (py3)"),
|
|
|
(r'os\.getcwd', "use encoding.getcwd instead (py3)", r'#.*re-exports'),
|
|
|
(r'os\.sep', "use pycompat.ossep instead (py3)"),
|
|
|
(r'os\.pathsep', "use pycompat.ospathsep instead (py3)"),
|
|
|
(r'os\.altsep', "use pycompat.osaltsep instead (py3)"),
|
|
|
(r'sys\.platform', "use pycompat.sysplatform instead (py3)"),
|
|
|
(r'getopt\.getopt', "use pycompat.getoptb instead (py3)"),
|
|
|
(r'os\.getenv', "use encoding.environ.get instead"),
|
|
|
(r'os\.setenv', "modifying the environ dict is not preferred"),
|
|
|
(r'(?<!pycompat\.)xrange', "use pycompat.xrange instead (py3)"),
|
|
|
],
|
|
|
# warnings
|
|
|
[],
|
|
|
]
|
|
|
|
|
|
checks = [
|
|
|
('python', r'.*\.(py|cgi)$', r'^#!.*python', pyfilters, pypats),
|
|
|
('python', r'.*\.(py|cgi)$', r'^#!.*python', [], pynfpats),
|
|
|
('python', r'.*hgext.*\.py$', '', [], pyextnfpats),
|
|
|
(
|
|
|
'python 3',
|
|
|
r'.*(hgext|mercurial)/(?!demandimport|policy|pycompat).*\.py',
|
|
|
'',
|
|
|
pyfilters,
|
|
|
py3pats,
|
|
|
),
|
|
|
('test script', r'(.*/)?test-[^.~]*$', '', 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$', '', txtfilters, txtpats),
|
|
|
(
|
|
|
'web template',
|
|
|
r'mercurial/templates/.*\.tmpl',
|
|
|
'',
|
|
|
webtemplatefilters,
|
|
|
webtemplatepats,
|
|
|
),
|
|
|
('all except for .po', r'.*(?<!\.po)$', '', allfilesfilters, allfilespats),
|
|
|
]
|
|
|
|
|
|
# (desc,
|
|
|
# func to pick up embedded code fragments,
|
|
|
# list of patterns to convert target files
|
|
|
# list of patterns to detect errors/warnings)
|
|
|
embeddedchecks = [
|
|
|
(
|
|
|
'embedded python',
|
|
|
testparseutil.pyembedded,
|
|
|
embeddedpyfilters,
|
|
|
embeddedpypats,
|
|
|
)
|
|
|
]
|
|
|
|
|
|
|
|
|
def _preparepats():
|
|
|
def preparefailandwarn(failandwarn):
|
|
|
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 (done in two steps)
|
|
|
# first, we replace \s that appears in a set already
|
|
|
p = re.sub(r'\[\\s', r'[ \\t', p)
|
|
|
# now we replace other \s instances.
|
|
|
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:]
|
|
|
|
|
|
def preparefilters(filters):
|
|
|
for i, flt in enumerate(filters):
|
|
|
filters[i] = re.compile(flt[0]), flt[1]
|
|
|
|
|
|
for cs in (checks, embeddedchecks):
|
|
|
for c in cs:
|
|
|
failandwarn = c[-1]
|
|
|
preparefailandwarn(failandwarn)
|
|
|
|
|
|
filters = c[-2]
|
|
|
preparefilters(filters)
|
|
|
|
|
|
|
|
|
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.
|
|
|
"""
|
|
|
result = True
|
|
|
|
|
|
try:
|
|
|
with opentext(f) as fp:
|
|
|
try:
|
|
|
pre = fp.read()
|
|
|
except UnicodeDecodeError as e:
|
|
|
print("%s while reading %s" % (e, f))
|
|
|
return result
|
|
|
except IOError as e:
|
|
|
print("Skipping %s, %s" % (f, str(e).split(':', 1)[0]))
|
|
|
return result
|
|
|
|
|
|
# context information shared while single checkfile() invocation
|
|
|
context = {'blamecache': None}
|
|
|
|
|
|
for name, match, magic, filters, pats in checks:
|
|
|
if debug:
|
|
|
print(name, f)
|
|
|
if not (re.match(match, f) or (magic and re.search(magic, pre))):
|
|
|
if debug:
|
|
|
print(
|
|
|
"Skipping %s for %s it doesn't match %s" % (name, match, f)
|
|
|
)
|
|
|
continue
|
|
|
if "no-" "check-code" in pre:
|
|
|
# If you're looking at this line, it's because a file has:
|
|
|
# no- check- code
|
|
|
# but the reason to output skipping is to make life for
|
|
|
# tests easier. So, instead of writing it with a normal
|
|
|
# spelling, we write it with the expected spelling from
|
|
|
# tests/test-check-code.t
|
|
|
print("Skipping %s it has no-che?k-code (glob)" % f)
|
|
|
return "Skip" # skip checking this file
|
|
|
|
|
|
fc = _checkfiledata(
|
|
|
name,
|
|
|
f,
|
|
|
pre,
|
|
|
filters,
|
|
|
pats,
|
|
|
context,
|
|
|
logfunc,
|
|
|
maxerr,
|
|
|
warnings,
|
|
|
blame,
|
|
|
debug,
|
|
|
lineno,
|
|
|
)
|
|
|
if fc:
|
|
|
result = False
|
|
|
|
|
|
if f.endswith('.t') and "no-" "check-code" not in pre:
|
|
|
if debug:
|
|
|
print("Checking embedded code in %s" % f)
|
|
|
|
|
|
prelines = pre.splitlines()
|
|
|
embeddederros = []
|
|
|
for name, embedded, filters, pats in embeddedchecks:
|
|
|
# "reset curmax at each repetition" treats maxerr as "max
|
|
|
# nubmer of errors in an actual file per entry of
|
|
|
# (embedded)checks"
|
|
|
curmaxerr = maxerr
|
|
|
|
|
|
for found in embedded(f, prelines, embeddederros):
|
|
|
filename, starts, ends, code = found
|
|
|
fc = _checkfiledata(
|
|
|
name,
|
|
|
f,
|
|
|
code,
|
|
|
filters,
|
|
|
pats,
|
|
|
context,
|
|
|
logfunc,
|
|
|
curmaxerr,
|
|
|
warnings,
|
|
|
blame,
|
|
|
debug,
|
|
|
lineno,
|
|
|
offset=starts - 1,
|
|
|
)
|
|
|
if fc:
|
|
|
result = False
|
|
|
if curmaxerr:
|
|
|
if fc >= curmaxerr:
|
|
|
break
|
|
|
curmaxerr -= fc
|
|
|
|
|
|
return result
|
|
|
|
|
|
|
|
|
def _checkfiledata(
|
|
|
name,
|
|
|
f,
|
|
|
filedata,
|
|
|
filters,
|
|
|
pats,
|
|
|
context,
|
|
|
logfunc,
|
|
|
maxerr,
|
|
|
warnings,
|
|
|
blame,
|
|
|
debug,
|
|
|
lineno,
|
|
|
offset=None,
|
|
|
):
|
|
|
"""Execute actual error check for file data
|
|
|
|
|
|
:name: of the checking category
|
|
|
:f: filepath
|
|
|
:filedata: content of a file
|
|
|
:filters: to be applied before checking
|
|
|
:pats: to detect errors
|
|
|
:context: a dict of information shared while single checkfile() invocation
|
|
|
Valid keys: 'blamecache'.
|
|
|
:logfunc: function used to report error
|
|
|
logfunc(filename, linenumber, linecontent, errormessage)
|
|
|
:maxerr: number of error to display before aborting, or False to
|
|
|
report all errors
|
|
|
:warnings: whether warning level checks should be applied
|
|
|
:blame: whether blame information should be displayed at error reporting
|
|
|
:debug: whether debug information should be displayed
|
|
|
:lineno: whether lineno should be displayed at error reporting
|
|
|
:offset: line number offset of 'filedata' in 'f' for checking
|
|
|
an embedded code fragment, or None (offset=0 is different
|
|
|
from offset=None)
|
|
|
|
|
|
returns number of detected errors.
|
|
|
"""
|
|
|
blamecache = context['blamecache']
|
|
|
if offset is None:
|
|
|
lineoffset = 0
|
|
|
else:
|
|
|
lineoffset = offset
|
|
|
|
|
|
fc = 0
|
|
|
pre = post = filedata
|
|
|
|
|
|
if True: # TODO: get rid of this redundant 'if' block
|
|
|
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 + lineoffset))
|
|
|
)
|
|
|
continue
|
|
|
bd = ""
|
|
|
if blame:
|
|
|
bd = 'working directory'
|
|
|
if blamecache is None:
|
|
|
blamecache = getblame(f)
|
|
|
context['blamecache'] = blamecache
|
|
|
if (n + lineoffset) < len(blamecache):
|
|
|
bl, bu, br = blamecache[(n + lineoffset)]
|
|
|
if offset is None and bl == l:
|
|
|
bd = '%s@%s' % (bu, br)
|
|
|
elif offset is not None and bl.endswith(l):
|
|
|
# "offset is not None" means "checking
|
|
|
# embedded code fragment". In this case,
|
|
|
# "l" does not have information about the
|
|
|
# beginning of an *original* line in the
|
|
|
# file (e.g. ' > ').
|
|
|
# Therefore, use "str.endswith()", and
|
|
|
# show "maybe" for a little loose
|
|
|
# examination.
|
|
|
bd = '%s@%s, maybe' % (bu, br)
|
|
|
|
|
|
errors.append((f, lineno and (n + lineoffset + 1), l, msg, bd))
|
|
|
|
|
|
errors.sort()
|
|
|
for e in errors:
|
|
|
logfunc(*e)
|
|
|
fc += 1
|
|
|
if maxerr and fc >= maxerr:
|
|
|
print(" (too many errors, giving up)")
|
|
|
break
|
|
|
|
|
|
return fc
|
|
|
|
|
|
|
|
|
def 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("*")
|
|
|
elif args == ['-']:
|
|
|
# read file list from stdin
|
|
|
check = sys.stdin.read().splitlines()
|
|
|
else:
|
|
|
check = args
|
|
|
|
|
|
_preparepats()
|
|
|
|
|
|
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
|
|
|
return ret
|
|
|
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
sys.exit(main())
|
|
|
|
