Mercurial > hg
annotate contrib/check-code.py @ 14975:b64538363dbe
i18n: use getattr instead of hasattr
Using getattr instead of util.safehasattr here to avoid adding another
dependency for i18n.
author | Augie Fackler <durin42@gmail.com> |
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date | Mon, 25 Jul 2011 20:46:30 -0500 |
parents | 0407b7613e99 |
children | 5a0fdc715769 |
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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 keyword |
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12 import optparse |
10281 | 13 |
14 def repquote(m): | |
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15 t = re.sub(r"\w", "x", m.group('text')) |
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16 t = re.sub(r"[^\sx]", "o", t) |
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17 return m.group('quote') + t + m.group('quote') |
10281 | 18 |
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19 def reppython(m): |
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20 comment = m.group('comment') |
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21 if comment: |
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22 return "#" * len(comment) |
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23 return repquote(m) |
10281 | 24 |
25 def repcomment(m): | |
26 return m.group(1) + "#" * len(m.group(2)) | |
27 | |
28 def repccomment(m): | |
29 t = re.sub(r"((?<=\n) )|\S", "x", m.group(2)) | |
30 return m.group(1) + t + "*/" | |
31 | |
32 def repcallspaces(m): | |
33 t = re.sub(r"\n\s+", "\n", m.group(2)) | |
34 return m.group(1) + t | |
35 | |
36 def repinclude(m): | |
37 return m.group(1) + "<foo>" | |
38 | |
39 def rephere(m): | |
40 t = re.sub(r"\S", "x", m.group(2)) | |
41 return m.group(1) + t | |
42 | |
43 | |
44 testpats = [ | |
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45 [ |
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46 (r'(pushd|popd)', "don't use 'pushd' or 'popd', use 'cd'"), |
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47 (r'\W\$?\(\([^\)]*\)\)', "don't use (()) or $(()), use 'expr'"), |
10281 | 48 (r'^function', "don't use 'function', use old style"), |
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49 (r'grep.*-q', "don't use 'grep -q', redirect to /dev/null"), |
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50 (r'echo.*\\n', "don't use 'echo \\n', use printf"), |
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51 (r'echo -n', "don't use 'echo -n', use printf"), |
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52 (r'^diff.*-\w*N', "don't use 'diff -N'"), |
10281 | 53 (r'(^| )wc[^|]*$', "filter wc output"), |
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54 (r'head -c', "don't use 'head -c', use 'dd'"), |
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55 (r'ls.*-\w*R', "don't use 'ls -R', use 'find'"), |
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56 (r'printf.*\\\d\d\d', "don't use 'printf \NNN', use Python"), |
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57 (r'printf.*\\x', "don't use printf \\x, use Python"), |
10281 | 58 (r'\$\(.*\)', "don't use $(expr), use `expr`"), |
59 (r'rm -rf \*', "don't use naked rm -rf, target a directory"), | |
60 (r'(^|\|\s*)grep (-\w\s+)*[^|]*[(|]\w', | |
61 "use egrep for extended grep syntax"), | |
62 (r'/bin/', "don't use explicit paths for tools"), | |
63 (r'\$PWD', "don't use $PWD, use `pwd`"), | |
64 (r'[^\n]\Z', "no trailing newline"), | |
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65 (r'export.*=', "don't export and assign at once"), |
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66 ('^([^"\']|("[^"]*")|(\'[^\']*\'))*\\^', "^ must be quoted"), |
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67 (r'^source\b', "don't use 'source', use '.'"), |
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68 (r'touch -d', "don't use 'touch -d', use 'touch -t' instead"), |
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69 (r'ls\s+[^|-]+\s+-', "options to 'ls' must come before filenames"), |
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70 (r'[^>]>\s*\$HGRCPATH', "don't overwrite $HGRCPATH, append to it"), |
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71 (r'stop\(\)', "don't use 'stop' as a shell function name"), |
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72 ], |
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73 # warnings |
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74 [] |
10281 | 75 ] |
76 | |
77 testfilters = [ | |
78 (r"( *)(#([^\n]*\S)?)", repcomment), | |
79 (r"<<(\S+)((.|\n)*?\n\1)", rephere), | |
80 ] | |
81 | |
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82 uprefix = r"^ \$ " |
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83 uprefixc = r"^ > " |
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84 utestpats = [ |
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85 [ |
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86 (r'^(\S| $ ).*(\S\s+|^\s+)\n', "trailing whitespace on non-output"), |
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87 (uprefix + r'.*\|\s*sed', "use regex test output patterns instead of sed"), |
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88 (uprefix + r'(true|exit 0)', "explicit zero exit unnecessary"), |
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89 (uprefix + r'.*\$\?', "explicit exit code checks unnecessary"), |
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90 (uprefix + r'.*\|\| echo.*(fail|error)', |
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91 "explicit exit code checks unnecessary"), |
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92 (uprefix + r'set -e', "don't use set -e"), |
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93 (uprefixc + r'( *)\t', "don't use tabs to indent"), |
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94 ], |
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95 # warnings |
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96 [] |
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97 ] |
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98 |
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99 for i in [0, 1]: |
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100 for p, m in testpats[i]: |
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101 if p.startswith('^'): |
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102 p = uprefix + p[1:] |
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103 else: |
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104 p = uprefix + p |
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105 utestpats[i].append((p, m)) |
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106 |
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107 utestfilters = [ |
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108 (r"( *)(#([^\n]*\S)?)", repcomment), |
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109 ] |
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110 |
10281 | 111 pypats = [ |
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112 [ |
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113 (r'^\s*def\s*\w+\s*\(.*,\s*\(', |
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114 "tuple parameter unpacking not available in Python 3+"), |
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115 (r'lambda\s*\(.*,.*\)', |
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116 "tuple parameter unpacking not available in Python 3+"), |
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117 (r'(?<!def)\s+(cmp)\(', "cmp is not available in Python 3+"), |
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118 (r'\breduce\s*\(.*', "reduce is not available in Python 3+"), |
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119 (r'\.has_key\b', "dict.has_key is not available in Python 3+"), |
10281 | 120 (r'^\s*\t', "don't use tabs"), |
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121 (r'\S;\s*\n', "semicolon"), |
10281 | 122 (r'\w,\w', "missing whitespace after ,"), |
123 (r'\w[+/*\-<>]\w', "missing whitespace in expression"), | |
124 (r'^\s+\w+=\w+[^,)]$', "missing whitespace in assignment"), | |
125 (r'.{85}', "line too long"), | |
126 (r'[^\n]\Z', "no trailing newline"), | |
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127 (r'(\S\s+|^\s+)\n', "trailing whitespace"), |
10281 | 128 # (r'^\s+[^_ ][^_. ]+_[^_]+\s*=', "don't use underbars in identifiers"), |
129 # (r'\w*[a-z][A-Z]\w*\s*=', "don't use camelcase in identifiers"), | |
10286 | 130 (r'^\s*(if|while|def|class|except|try)\s[^[]*:\s*[^\]#\s]+', |
131 "linebreak after :"), | |
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132 (r'class\s[^( ]+:', "old-style class, use class foo(object)"), |
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133 (r'class\s[^( ]+\(\):', |
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134 "class foo() not available in Python 2.4, use class foo(object)"), |
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135 (r'\b(%s)\(' % '|'.join(keyword.kwlist), |
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136 "Python keyword is not a function"), |
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137 (r',]', "unneeded trailing ',' in list"), |
10281 | 138 # (r'class\s[A-Z][^\(]*\((?!Exception)', |
139 # "don't capitalize non-exception classes"), | |
140 # (r'in range\(', "use xrange"), | |
141 # (r'^\s*print\s+', "avoid using print in core and extensions"), | |
142 (r'[\x80-\xff]', "non-ASCII character literal"), | |
143 (r'("\')\.format\(', "str.format() not available in Python 2.4"), | |
144 (r'^\s*with\s+', "with not available in Python 2.4"), | |
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145 (r'\.isdisjoint\(', "set.isdisjoint not available in Python 2.4"), |
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146 (r'^\s*except.* as .*:', "except as not available in Python 2.4"), |
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147 (r'^\s*os\.path\.relpath', "relpath not available in Python 2.4"), |
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148 (r'(?<!def)\s+(any|all|format)\(', |
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149 "any/all/format not available in Python 2.4"), |
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150 (r'(?<!def)\s+(callable)\(', |
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151 "callable not available in Python 3, use hasattr(f, '__call__')"), |
10281 | 152 (r'if\s.*\selse', "if ... else form not available in Python 2.4"), |
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153 (r'^\s*(%s)\s\s' % '|'.join(keyword.kwlist), |
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154 "gratuitous whitespace after Python keyword"), |
10281 | 155 (r'([\(\[]\s\S)|(\S\s[\)\]])', "gratuitous whitespace in () or []"), |
156 # (r'\s\s=', "gratuitous whitespace before ="), | |
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157 (r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=)\S', |
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158 "missing whitespace around operator"), |
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159 (r'[^>< ](\+=|-=|!=|<>|<=|>=|<<=|>>=)\s', |
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160 "missing whitespace around operator"), |
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161 (r'\s(\+=|-=|!=|<>|<=|>=|<<=|>>=)\S', |
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162 "missing whitespace around operator"), |
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163 (r'[^+=*/!<>&| -](\s=|=\s)[^= ]', |
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164 "wrong whitespace around ="), |
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165 (r'raise Exception', "don't raise generic exceptions"), |
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166 (r' is\s+(not\s+)?["\'0-9-]', "object comparison with literal"), |
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167 (r' [=!]=\s+(True|False|None)', |
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168 "comparison with singleton, use 'is' or 'is not' instead"), |
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169 (r'^\s*(while|if) [01]:', |
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170 "use True/False for constant Boolean expression"), |
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171 (r'opener\([^)]*\).read\(', |
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172 "use opener.read() instead"), |
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173 (r'opener\([^)]*\).write\(', |
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174 "use opener.write() instead"), |
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175 (r'[\s\(](open|file)\([^)]*\)\.read\(', |
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176 "use util.readfile() instead"), |
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177 (r'[\s\(](open|file)\([^)]*\)\.write\(', |
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178 "use util.readfile() instead"), |
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179 (r'^[\s\(]*(open(er)?|file)\([^)]*\)', |
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180 "always assign an opened file to a variable, and close it afterwards"), |
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181 (r'[\s\(](open|file)\([^)]*\)\.', |
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182 "always assign an opened file to a variable, and close it afterwards"), |
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183 (r'(?i)descendent', "the proper spelling is descendAnt"), |
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184 (r'\.debug\(\_', "don't mark debug messages for translation"), |
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185 ], |
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186 # warnings |
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187 [ |
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188 (r'.{81}', "warning: line over 80 characters"), |
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189 (r'^\s*except:$', "warning: naked except clause"), |
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190 (r'ui\.(status|progress|write|note|warn)\([\'\"]x', |
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191 "warning: unwrapped ui message"), |
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192 ] |
10281 | 193 ] |
194 | |
195 pyfilters = [ | |
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196 (r"""(?msx)(?P<comment>\#.*?$)| |
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197 ((?P<quote>('''|\"\"\"|(?<!')'(?!')|(?<!")"(?!"))) |
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198 (?P<text>(([^\\]|\\.)*?)) |
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199 (?P=quote))""", reppython), |
10281 | 200 ] |
201 | |
202 cpats = [ | |
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203 [ |
10281 | 204 (r'//', "don't use //-style comments"), |
205 (r'^ ', "don't use spaces to indent"), | |
206 (r'\S\t', "don't use tabs except for indent"), | |
207 (r'(\S\s+|^\s+)\n', "trailing whitespace"), | |
208 (r'.{85}', "line too long"), | |
209 (r'(while|if|do|for)\(', "use space after while/if/do/for"), | |
210 (r'return\(', "return is not a function"), | |
211 (r' ;', "no space before ;"), | |
212 (r'\w+\* \w+', "use int *foo, not int* foo"), | |
213 (r'\([^\)]+\) \w+', "use (int)foo, not (int) foo"), | |
214 (r'\S+ (\+\+|--)', "use foo++, not foo ++"), | |
215 (r'\w,\w', "missing whitespace after ,"), | |
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216 (r'^[^#]\w[+/*]\w', "missing whitespace in expression"), |
10281 | 217 (r'^#\s+\w', "use #foo, not # foo"), |
218 (r'[^\n]\Z', "no trailing newline"), | |
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219 (r'^\s*#import\b', "use only #include in standard C code"), |
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220 ], |
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221 # warnings |
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222 [] |
10281 | 223 ] |
224 | |
225 cfilters = [ | |
226 (r'(/\*)(((\*(?!/))|[^*])*)\*/', repccomment), | |
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227 (r'''(?P<quote>(?<!")")(?P<text>([^"]|\\")+)"(?!")''', repquote), |
10281 | 228 (r'''(#\s*include\s+<)([^>]+)>''', repinclude), |
229 (r'(\()([^)]+\))', repcallspaces), | |
230 ] | |
231 | |
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232 inutilpats = [ |
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233 [ |
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234 (r'\bui\.', "don't use ui in util"), |
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235 ], |
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236 # warnings |
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237 [] |
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238 ] |
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239 |
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240 inrevlogpats = [ |
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241 [ |
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242 (r'\brepo\.', "don't use repo in revlog"), |
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243 ], |
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244 # warnings |
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245 [] |
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246 ] |
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247 |
10281 | 248 checks = [ |
249 ('python', r'.*\.(py|cgi)$', pyfilters, pypats), | |
250 ('test script', r'(.*/)?test-[^.~]*$', testfilters, testpats), | |
251 ('c', r'.*\.c$', cfilters, cpats), | |
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252 ('unified test', r'.*\.t$', utestfilters, utestpats), |
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253 ('layering violation repo in revlog', r'mercurial/revlog\.py', pyfilters, |
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254 inrevlogpats), |
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255 ('layering violation ui in util', r'mercurial/util\.py', pyfilters, |
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256 inutilpats), |
10281 | 257 ] |
258 | |
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259 class norepeatlogger(object): |
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260 def __init__(self): |
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261 self._lastseen = None |
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262 |
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263 def log(self, fname, lineno, line, msg, blame): |
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264 """print error related a to given line of a given file. |
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265 |
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266 The faulty line will also be printed but only once in the case |
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267 of multiple errors. |
10281 | 268 |
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269 :fname: filename |
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270 :lineno: line number |
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271 :line: actual content of the line |
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272 :msg: error message |
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273 """ |
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274 msgid = fname, lineno, line |
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275 if msgid != self._lastseen: |
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276 if blame: |
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277 print "%s:%d (%s):" % (fname, lineno, blame) |
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278 else: |
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279 print "%s:%d:" % (fname, lineno) |
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280 print " > %s" % line |
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281 self._lastseen = msgid |
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282 print " " + msg |
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283 |
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284 _defaultlogger = norepeatlogger() |
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285 |
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286 def getblame(f): |
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287 lines = [] |
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288 for l in os.popen('hg annotate -un %s' % f): |
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289 start, line = l.split(':', 1) |
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290 user, rev = start.split() |
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291 lines.append((line[1:-1], user, rev)) |
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292 return lines |
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293 |
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294 def checkfile(f, logfunc=_defaultlogger.log, maxerr=None, warnings=False, |
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295 blame=False, debug=False): |
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296 """checks style and portability of a given file |
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297 |
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298 :f: filepath |
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299 :logfunc: function used to report error |
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300 logfunc(filename, linenumber, linecontent, errormessage) |
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301 :maxerr: number of error to display before arborting. |
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302 Set to None (default) to report all errors |
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303 |
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304 return True if no error is found, False otherwise. |
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305 """ |
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306 blamecache = None |
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307 result = True |
10281 | 308 for name, match, filters, pats in checks: |
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309 if debug: |
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310 print name, f |
10281 | 311 fc = 0 |
312 if not re.match(match, f): | |
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313 if debug: |
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314 print "Skipping %s for %s it doesn't match %s" % ( |
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315 name, match, f) |
10281 | 316 continue |
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317 fp = open(f) |
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318 pre = post = fp.read() |
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319 fp.close() |
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320 if "no-" + "check-code" in pre: |
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321 if debug: |
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322 print "Skipping %s for %s it has no- and check-code" % ( |
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323 name, f) |
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324 break |
10281 | 325 for p, r in filters: |
326 post = re.sub(p, r, post) | |
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327 if warnings: |
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328 pats = pats[0] + pats[1] |
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329 else: |
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330 pats = pats[0] |
10281 | 331 # print post # uncomment to show filtered version |
332 z = enumerate(zip(pre.splitlines(), post.splitlines(True))) | |
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333 if debug: |
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334 print "Checking %s for %s" % (name, f) |
10281 | 335 for n, l in z: |
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336 if "check-code" + "-ignore" in l[0]: |
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337 if debug: |
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338 print "Skipping %s for %s:%s (check-code -ignore)" % ( |
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339 name, f, n) |
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340 continue |
10281 | 341 for p, msg in pats: |
342 if re.search(p, l[1]): | |
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343 bd = "" |
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344 if blame: |
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345 bd = 'working directory' |
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346 if not blamecache: |
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347 blamecache = getblame(f) |
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348 if n < len(blamecache): |
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349 bl, bu, br = blamecache[n] |
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350 if bl == l[0]: |
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351 bd = '%s@%s' % (bu, br) |
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352 logfunc(f, n + 1, l[0], msg, bd) |
10281 | 353 fc += 1 |
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354 result = False |
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355 if maxerr is not None and fc >= maxerr: |
10281 | 356 print " (too many errors, giving up)" |
357 break | |
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358 return result |
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359 |
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360 if __name__ == "__main__": |
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361 parser = optparse.OptionParser("%prog [options] [files]") |
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362 parser.add_option("-w", "--warnings", action="store_true", |
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363 help="include warning-level checks") |
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364 parser.add_option("-p", "--per-file", type="int", |
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365 help="max warnings per file") |
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366 parser.add_option("-b", "--blame", action="store_true", |
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367 help="use annotate to generate blame info") |
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368 parser.add_option("", "--debug", action="store_true", |
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369 help="show debug information") |
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370 |
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371 parser.set_defaults(per_file=15, warnings=False, blame=False, debug=False) |
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372 (options, args) = parser.parse_args() |
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373 |
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374 if len(args) == 0: |
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375 check = glob.glob("*") |
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376 else: |
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377 check = args |
10281 | 378 |
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379 for f in check: |
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380 ret = 0 |
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381 if not checkfile(f, maxerr=options.per_file, warnings=options.warnings, |
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382 blame=options.blame, debug=options.debug): |
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383 ret = 1 |
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384 sys.exit(ret) |