Mercurial > public > mercurial-scm > hg-stable
annotate contrib/check-code.py @ 11816:e1359ad582f6
check-code: add exit status
so that we can use it in a shell command combination and/or in hg hooks.
| author | Alecs King <alecsk@gmail.com> |
|---|---|
| date | Thu, 12 Aug 2010 16:42:41 +0800 |
| parents | 16723af520b0 |
| children | 73112cb2a6d7 |
| rev | line source |
|---|---|
| 10281 | 1 #!/usr/bin/env python |
| 2 # | |
| 3 # check-code - a style and portability checker for Mercurial | |
| 4 # | |
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5 # Copyright 2010 Matt Mackall <mpm@selenic.com> |
| 10281 | 6 # |
| 7 # This software may be used and distributed according to the terms of the | |
| 8 # GNU General Public License version 2 or any later version. | |
| 9 | |
|
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10 import re, glob, os, sys |
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11 import optparse |
| 10281 | 12 |
| 13 def repquote(m): | |
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14 t = re.sub(r"\w", "x", m.group('text')) |
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15 t = re.sub(r"[^\sx]", "o", t) |
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16 return m.group('quote') + t + m.group('quote') |
| 10281 | 17 |
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18 def reppython(m): |
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19 comment = m.group('comment') |
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20 if comment: |
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21 return "#" * len(comment) |
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22 return repquote(m) |
| 10281 | 23 |
| 24 def repcomment(m): | |
| 25 return m.group(1) + "#" * len(m.group(2)) | |
| 26 | |
| 27 def repccomment(m): | |
| 28 t = re.sub(r"((?<=\n) )|\S", "x", m.group(2)) | |
| 29 return m.group(1) + t + "*/" | |
| 30 | |
| 31 def repcallspaces(m): | |
| 32 t = re.sub(r"\n\s+", "\n", m.group(2)) | |
| 33 return m.group(1) + t | |
| 34 | |
| 35 def repinclude(m): | |
| 36 return m.group(1) + "<foo>" | |
| 37 | |
| 38 def rephere(m): | |
| 39 t = re.sub(r"\S", "x", m.group(2)) | |
| 40 return m.group(1) + t | |
| 41 | |
| 42 | |
| 43 testpats = [ | |
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44 (r'(pushd|popd)', "don't use 'pushd' or 'popd', use 'cd'"), |
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45 (r'\W\$?\(\([^\)]*\)\)', "don't use (()) or $(()), use 'expr'"), |
| 10281 | 46 (r'^function', "don't use 'function', use old style"), |
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47 (r'grep.*-q', "don't use 'grep -q', redirect to /dev/null"), |
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check-code.py: escape backslash
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48 (r'echo.*\\n', "don't use 'echo \\n', use printf"), |
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49 (r'^diff.*-\w*N', "don't use 'diff -N'"), |
| 10281 | 50 (r'(^| )wc[^|]*$', "filter wc output"), |
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51 (r'head -c', "don't use 'head -c', use 'dd'"), |
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52 (r'ls.*-\w*R', "don't use 'ls -R', use 'find'"), |
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53 (r'printf.*\\\d\d\d', "don't use 'printf \NNN', use Python"), |
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54 (r'printf.*\\x', "don't use printf \\x, use Python"), |
| 10281 | 55 (r'\$\(.*\)', "don't use $(expr), use `expr`"), |
| 56 (r'rm -rf \*', "don't use naked rm -rf, target a directory"), | |
| 57 (r'(^|\|\s*)grep (-\w\s+)*[^|]*[(|]\w', | |
| 58 "use egrep for extended grep syntax"), | |
| 59 (r'/bin/', "don't use explicit paths for tools"), | |
| 60 (r'\$PWD', "don't use $PWD, use `pwd`"), | |
| 61 (r'[^\n]\Z', "no trailing newline"), | |
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62 (r'export.*=', "don't export and assign at once"), |
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63 ('^([^"\']|("[^"]*")|(\'[^\']*\'))*\\^', "^ must be quoted"), |
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64 (r'^source\b', "don't use 'source', use '.'"), |
| 10281 | 65 ] |
| 66 | |
| 67 testfilters = [ | |
| 68 (r"( *)(#([^\n]*\S)?)", repcomment), | |
| 69 (r"<<(\S+)((.|\n)*?\n\1)", rephere), | |
| 70 ] | |
| 71 | |
| 72 pypats = [ | |
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73 (r'^\s*def\s*\w+\s*\(.*,\s*\(', |
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74 "tuple parameter unpacking not available in Python 3+"), |
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75 (r'lambda\s*\(.*,.*\)', |
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76 "tuple parameter unpacking not available in Python 3+"), |
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77 (r'(?<!def)\s+(cmp)\(', "cmp is not available in Python 3+"), |
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78 (r'\breduce\s*\(.*', "reduce is not available in Python 3+"), |
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79 (r'\.has_key\b', "dict.has_key is not available in Python 3+"), |
| 10281 | 80 (r'^\s*\t', "don't use tabs"), |
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81 (r'\S;\s*\n', "semicolon"), |
| 10281 | 82 (r'\w,\w', "missing whitespace after ,"), |
| 83 (r'\w[+/*\-<>]\w', "missing whitespace in expression"), | |
| 84 (r'^\s+\w+=\w+[^,)]$', "missing whitespace in assignment"), | |
| 85 (r'.{85}', "line too long"), | |
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86 (r'.{81}', "warning: line over 80 characters"), |
| 10281 | 87 (r'[^\n]\Z', "no trailing newline"), |
| 88 # (r'^\s+[^_ ][^_. ]+_[^_]+\s*=', "don't use underbars in identifiers"), | |
| 89 # (r'\w*[a-z][A-Z]\w*\s*=', "don't use camelcase in identifiers"), | |
| 10286 | 90 (r'^\s*(if|while|def|class|except|try)\s[^[]*:\s*[^\]#\s]+', |
| 91 "linebreak after :"), | |
| 10281 | 92 (r'class\s[^(]:', "old-style class, use class foo(object)"), |
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93 (r'^\s+del\(', "del isn't a function"), |
| 10281 | 94 (r'^\s+except\(', "except isn't a function"), |
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95 (r',]', "unneeded trailing ',' in list"), |
| 10281 | 96 # (r'class\s[A-Z][^\(]*\((?!Exception)', |
| 97 # "don't capitalize non-exception classes"), | |
| 98 # (r'in range\(', "use xrange"), | |
| 99 # (r'^\s*print\s+', "avoid using print in core and extensions"), | |
| 100 (r'[\x80-\xff]', "non-ASCII character literal"), | |
| 101 (r'("\')\.format\(', "str.format() not available in Python 2.4"), | |
| 102 (r'^\s*with\s+', "with not available in Python 2.4"), | |
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103 (r'(?<!def)\s+(any|all|format)\(', |
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104 "any/all/format not available in Python 2.4"), |
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105 (r'(?<!def)\s+(callable)\(', |
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106 "callable not available in Python 3, use hasattr(f, '__call__')"), |
| 10281 | 107 (r'if\s.*\selse', "if ... else form not available in Python 2.4"), |
| 108 (r'([\(\[]\s\S)|(\S\s[\)\]])', "gratuitous whitespace in () or []"), | |
| 109 # (r'\s\s=', "gratuitous whitespace before ="), | |
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110 (r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=)\S', |
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111 "missing whitespace around operator"), |
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112 (r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=)\s', |
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113 "missing whitespace around operator"), |
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114 (r'\s(\+=|-=|!=|<>|<=|>=|<<=|>>=)\S', |
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115 "missing whitespace around operator"), |
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116 (r'[^+=*!<>&| -](\s=|=\s)[^= ]', |
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117 "wrong whitespace around ="), |
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118 (r'raise Exception', "don't raise generic exceptions"), |
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119 (r'ui\.(status|progress|write|note|warn)\([\'\"]x', |
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120 "warning: unwrapped ui message"), |
| 10281 | 121 ] |
| 122 | |
| 123 pyfilters = [ | |
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124 (r"""(?msx)(?P<comment>\#.*?$)| |
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125 ((?P<quote>('''|\"\"\"|(?<!')'(?!')|(?<!")"(?!"))) |
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126 (?P<text>(([^\\]|\\.)*?)) |
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127 (?P=quote))""", reppython), |
| 10281 | 128 ] |
| 129 | |
| 130 cpats = [ | |
| 131 (r'//', "don't use //-style comments"), | |
| 132 (r'^ ', "don't use spaces to indent"), | |
| 133 (r'\S\t', "don't use tabs except for indent"), | |
| 134 (r'(\S\s+|^\s+)\n', "trailing whitespace"), | |
| 135 (r'.{85}', "line too long"), | |
| 136 (r'(while|if|do|for)\(', "use space after while/if/do/for"), | |
| 137 (r'return\(', "return is not a function"), | |
| 138 (r' ;', "no space before ;"), | |
| 139 (r'\w+\* \w+', "use int *foo, not int* foo"), | |
| 140 (r'\([^\)]+\) \w+', "use (int)foo, not (int) foo"), | |
| 141 (r'\S+ (\+\+|--)', "use foo++, not foo ++"), | |
| 142 (r'\w,\w', "missing whitespace after ,"), | |
| 143 (r'\w[+/*]\w', "missing whitespace in expression"), | |
| 144 (r'^#\s+\w', "use #foo, not # foo"), | |
| 145 (r'[^\n]\Z', "no trailing newline"), | |
| 146 ] | |
| 147 | |
| 148 cfilters = [ | |
| 149 (r'(/\*)(((\*(?!/))|[^*])*)\*/', repccomment), | |
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150 (r'''(?P<quote>(?<!")")(?P<text>([^"]|\\")+)"(?!")''', repquote), |
| 10281 | 151 (r'''(#\s*include\s+<)([^>]+)>''', repinclude), |
| 152 (r'(\()([^)]+\))', repcallspaces), | |
| 153 ] | |
| 154 | |
| 155 checks = [ | |
| 156 ('python', r'.*\.(py|cgi)$', pyfilters, pypats), | |
| 157 ('test script', r'(.*/)?test-[^.~]*$', testfilters, testpats), | |
| 158 ('c', r'.*\.c$', cfilters, cpats), | |
| 159 ] | |
| 160 | |
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161 class norepeatlogger(object): |
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162 def __init__(self): |
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163 self._lastseen = None |
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164 |
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165 def log(self, fname, lineno, line, msg, blame): |
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166 """print error related a to given line of a given file. |
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167 |
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168 The faulty line will also be printed but only once in the case |
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169 of multiple errors. |
| 10281 | 170 |
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171 :fname: filename |
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172 :lineno: line number |
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173 :line: actual content of the line |
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174 :msg: error message |
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175 """ |
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176 msgid = fname, lineno, line |
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177 if msgid != self._lastseen: |
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178 if blame: |
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179 print "%s:%d (%s):" % (fname, lineno, blame) |
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180 else: |
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181 print "%s:%d:" % (fname, lineno) |
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182 print " > %s" % line |
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183 self._lastseen = msgid |
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184 print " " + msg |
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185 |
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186 _defaultlogger = norepeatlogger() |
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187 |
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188 def getblame(f): |
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189 lines = [] |
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190 for l in os.popen('hg annotate -un %s' % f): |
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191 start, line = l.split(':', 1) |
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192 user, rev = start.split() |
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193 lines.append((line[1:-1], user, rev)) |
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194 return lines |
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195 |
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196 def checkfile(f, logfunc=_defaultlogger.log, maxerr=None, warnings=False, |
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197 blame=False): |
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198 """checks style and portability of a given file |
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199 |
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200 :f: filepath |
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201 :logfunc: function used to report error |
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202 logfunc(filename, linenumber, linecontent, errormessage) |
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203 :maxerr: number of error to display before arborting. |
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204 Set to None (default) to report all errors |
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205 |
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206 return True if no error is found, False otherwise. |
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207 """ |
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208 blamecache = None |
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209 result = True |
| 10281 | 210 for name, match, filters, pats in checks: |
| 211 fc = 0 | |
| 212 if not re.match(match, f): | |
| 213 continue | |
| 214 pre = post = open(f).read() | |
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215 if "no-" + "check-code" in pre: |
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216 break |
| 10281 | 217 for p, r in filters: |
| 218 post = re.sub(p, r, post) | |
| 219 # print post # uncomment to show filtered version | |
| 220 z = enumerate(zip(pre.splitlines(), post.splitlines(True))) | |
| 221 for n, l in z: | |
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222 if "check-code" + "-ignore" in l[0]: |
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223 continue |
| 10281 | 224 for p, msg in pats: |
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225 if not warnings and msg.startswith("warning"): |
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226 continue |
| 10281 | 227 if re.search(p, l[1]): |
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228 bd = "" |
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229 if blame: |
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230 bd = 'working directory' |
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231 if not blamecache: |
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232 blamecache = getblame(f) |
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233 if n < len(blamecache): |
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234 bl, bu, br = blamecache[n] |
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235 if bl == l[0]: |
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236 bd = '%s@%s' % (bu, br) |
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237 logfunc(f, n + 1, l[0], msg, bd) |
| 10281 | 238 fc += 1 |
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239 result = False |
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240 if maxerr is not None and fc >= maxerr: |
| 10281 | 241 print " (too many errors, giving up)" |
| 242 break | |
| 243 break | |
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244 return result |
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245 |
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246 if __name__ == "__main__": |
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247 parser = optparse.OptionParser("%prog [options] [files]") |
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248 parser.add_option("-w", "--warnings", action="store_true", |
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249 help="include warning-level checks") |
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250 parser.add_option("-p", "--per-file", type="int", |
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251 help="max warnings per file") |
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252 parser.add_option("-b", "--blame", action="store_true", |
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253 help="use annotate to generate blame info") |
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254 |
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255 parser.set_defaults(per_file=15, warnings=False, blame=False) |
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256 (options, args) = parser.parse_args() |
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257 |
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258 if len(args) == 0: |
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259 check = glob.glob("*") |
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260 else: |
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261 check = args |
| 10281 | 262 |
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263 for f in check: |
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264 ret = 0 |
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265 if not checkfile(f, maxerr=options.per_file, warnings=options.warnings, |
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266 blame=options.blame): |
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267 ret = 1 |
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268 sys.exit(ret) |