Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/fileset.py @ 14682:8785fd757077

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fileset: add grep predicate
author Matt Mackall <mpm@selenic.com>
date Sat, 18 Jun 2011 16:53:49 -0500
parents 0744db5eb51c
children 281102f37b24
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # fileset.py - file set queries for mercurial
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2 #
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3 # Copyright 2010 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 import parser, error, util, merge, re
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9 from i18n import _
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10
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11 elements = {
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12 "(": (20, ("group", 1, ")"), ("func", 1, ")")),
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13 "-": (5, ("negate", 19), ("minus", 5)),
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14 "not": (10, ("not", 10)),
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15 "!": (10, ("not", 10)),
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16 "and": (5, None, ("and", 5)),
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17 "&": (5, None, ("and", 5)),
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18 "or": (4, None, ("or", 4)),
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19 "|": (4, None, ("or", 4)),
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20 "+": (4, None, ("or", 4)),
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21 ",": (2, None, ("list", 2)),
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22 ")": (0, None, None),
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23 "symbol": (0, ("symbol",), None),
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24 "string": (0, ("string",), None),
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25 "end": (0, None, None),
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26 }
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27
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28 keywords = set(['and', 'or', 'not'])
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29
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30 globchars = ".*{}[]?/\\"
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31
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32 def tokenize(program):
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33 pos, l = 0, len(program)
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34 while pos < l:
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35 c = program[pos]
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36 if c.isspace(): # skip inter-token whitespace
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37 pass
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38 elif c in "(),-|&+!": # handle simple operators
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39 yield (c, None, pos)
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40 elif (c in '"\'' or c == 'r' and
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41 program[pos:pos + 2] in ("r'", 'r"')): # handle quoted strings
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42 if c == 'r':
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43 pos += 1
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44 c = program[pos]
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45 decode = lambda x: x
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46 else:
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47 decode = lambda x: x.decode('string-escape')
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48 pos += 1
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49 s = pos
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50 while pos < l: # find closing quote
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51 d = program[pos]
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52 if d == '\\': # skip over escaped characters
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53 pos += 2
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54 continue
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55 if d == c:
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56 yield ('string', decode(program[s:pos]), s)
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57 break
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58 pos += 1
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59 else:
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60 raise error.ParseError(_("unterminated string"), s)
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61 elif c.isalnum() or c in globchars or ord(c) > 127:
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62 # gather up a symbol/keyword
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63 s = pos
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64 pos += 1
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65 while pos < l: # find end of symbol
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66 d = program[pos]
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67 if not (d.isalnum() or d in globchars or ord(d) > 127):
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68 break
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69 pos += 1
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70 sym = program[s:pos]
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71 if sym in keywords: # operator keywords
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72 yield (sym, None, s)
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73 else:
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74 yield ('symbol', sym, s)
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75 pos -= 1
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76 else:
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77 raise error.ParseError(_("syntax error"), pos)
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78 pos += 1
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79 yield ('end', None, pos)
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80
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81 parse = parser.parser(tokenize, elements).parse
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82
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83 def getstring(x, err):
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84 if x and (x[0] == 'string' or x[0] == 'symbol'):
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85 return x[1]
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86 raise error.ParseError(err)
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87
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88 def getset(mctx, x):
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89 if not x:
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90 raise error.ParseError(_("missing argument"))
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91 return methods[x[0]](mctx, *x[1:])
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92
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93 def stringset(mctx, x):
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94 m = mctx.matcher([x])
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95 return [f for f in mctx.subset if m(f)]
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96
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97 def andset(mctx, x, y):
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98 return getset(mctx.narrow(getset(mctx, x)), y)
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99
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100 def orset(mctx, x, y):
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101 # needs optimizing
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102 xl = getset(mctx, x)
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103 yl = getset(mctx, y)
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104 return xl + [f for f in yl if f not in xl]
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105
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106 def notset(mctx, x):
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107 s = set(getset(mctx, x))
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108 return [r for r in mctx.subset if r not in s]
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109
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110 def listset(mctx, a, b):
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111 raise error.ParseError(_("can't use a list in this context"))
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112
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113 def modified(mctx, x):
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114 """``modified()``
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115 File that is modified according to status.
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116 """
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117 getargs(x, 0, 0, _("modified takes no arguments"))
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118 s = mctx.status()[0]
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119 return [f for f in mctx.subset if f in s]
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120
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121 def added(mctx, x):
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122 """``added()``
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123 File that is added according to status.
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124 """
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125 getargs(x, 0, 0, _("added takes no arguments"))
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126 s = mctx.status()[1]
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127 return [f for f in mctx.subset if f in s]
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128
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129 def removed(mctx, x):
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130 """``removed()``
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131 File that is removed according to status.
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132 """
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133 getargs(x, 0, 0, _("removed takes no arguments"))
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134 s = mctx.status()[2]
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135 return [f for f in mctx.subset if f in s]
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136
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137 def deleted(mctx, x):
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138 """``deleted()``
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139 File that is deleted according to status.
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140 """
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141 getargs(x, 0, 0, _("deleted takes no arguments"))
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142 s = mctx.status()[3]
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143 return [f for f in mctx.subset if f in s]
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144
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145 def unknown(mctx, x):
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146 """``unknown()``
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147 File that is unknown according to status. These files will only be
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148 considered if this predicate is used.
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149 """
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150 getargs(x, 0, 0, _("unknown takes no arguments"))
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151 s = mctx.status()[4]
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152 return [f for f in mctx.subset if f in s]
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153
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154 def ignored(mctx, x):
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155 """``ignored()``
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156 File that is ignored according to status. These files will only be
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157 considered if this predicate is used.
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158 """
14677
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159 getargs(x, 0, 0, _("ignored takes no arguments"))
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160 s = mctx.status()[5]
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161 return [f for f in mctx.subset if f in s]
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162
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163 def clean(mctx, x):
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164 """``clean()``
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165 File that is clean according to status.
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166 """
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167 getargs(x, 0, 0, _("clean takes no arguments"))
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168 s = mctx.status()[6]
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169 return [f for f in mctx.subset if f in s]
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170
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171 def func(mctx, a, b):
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172 if a[0] == 'symbol' and a[1] in symbols:
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173 return symbols[a[1]](mctx, b)
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174 raise error.ParseError(_("not a function: %s") % a[1])
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175
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176 def getlist(x):
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177 if not x:
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178 return []
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179 if x[0] == 'list':
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180 return getlist(x[1]) + [x[2]]
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181 return [x]
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182
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183 def getargs(x, min, max, err):
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184 l = getlist(x)
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185 if len(l) < min or len(l) > max:
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186 raise error.ParseError(err)
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187 return l
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188
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189 def binary(mctx, x):
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190 """``binary()``
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191 File that appears to be binary (contails NUL bytes).
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192 """
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193 getargs(x, 0, 0, _("binary takes no arguments"))
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194 return [f for f in mctx.subset if util.binary(mctx.ctx[f].data())]
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195
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196 def exec_(mctx, x):
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197 """``exec()``
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198 File that is marked as executable.
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199 """
14676
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200 getargs(x, 0, 0, _("exec takes no arguments"))
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201 return [f for f in mctx.subset if mctx.ctx.flags(f) == 'x']
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202
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203 def symlink(mctx, x):
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204 """``symlink()``
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205 File that is marked as a symlink.
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206 """
14676
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207 getargs(x, 0, 0, _("symlink takes no arguments"))
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208 return [f for f in mctx.subset if mctx.ctx.flags(f) == 'l']
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209
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210 def resolved(mctx, x):
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211 """``resolved()``
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212 File that is marked resolved according to the resolve state.
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213 """
14679
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214 getargs(x, 0, 0, _("resolved takes no arguments"))
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215 if mctx.ctx.rev() is not None:
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216 return []
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217 ms = merge.mergestate(mctx.ctx._repo)
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218 return [f for f in mctx.subset if f in ms and ms[f] == 'r']
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219
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220 def unresolved(mctx, x):
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221 """``unresolved()``
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222 File that is marked unresolved according to the resolve state.
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223 """
14679
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224 getargs(x, 0, 0, _("unresolved takes no arguments"))
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225 if mctx.ctx.rev() is not None:
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226 return []
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227 ms = merge.mergestate(mctx.ctx._repo)
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228 return [f for f in mctx.subset if f in ms and ms[f] == 'u']
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229
14680
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230 def hgignore(mctx, x):
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diff changeset
231 """``resolved()``
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diff changeset
232 File that matches the active .hgignore pattern.
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diff changeset
233 """
14680
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234 getargs(x, 0, 0, _("hgignore takes no arguments"))
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diff changeset
235 ignore = mctx.ctx._repo.dirstate._ignore
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diff changeset
236 return [f for f in mctx.subset if ignore(f)]
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diff changeset
237
14682
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diff changeset
238 def grep(mctx, x):
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diff changeset
239 """``grep(regex)``
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diff changeset
240 File contains the given regular expression.
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diff changeset
241 """
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diff changeset
242 pat = getstring(x, _("grep requires a pattern"))
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diff changeset
243 r = re.compile(pat)
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diff changeset
244 return [f for f in mctx.subset if r.search(mctx.ctx[f].data())]
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245
14676
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246 symbols = {
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247 'added': added,
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248 'binary': binary,
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249 'clean': clean,
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250 'deleted': deleted,
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diff changeset
251 'exec': exec_,
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diff changeset
252 'grep': grep,
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253 'ignored': ignored,
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diff changeset
254 'hgignore': hgignore,
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diff changeset
255 'modified': modified,
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diff changeset
256 'removed': removed,
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diff changeset
257 'resolved': resolved,
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diff changeset
258 'symlink': symlink,
14677
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diff changeset
259 'unknown': unknown,
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260 'unresolved': unresolved,
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diff changeset
261 }
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diff changeset
262
14551
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diff changeset
263 methods = {
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diff changeset
264 'string': stringset,
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diff changeset
265 'symbol': stringset,
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diff changeset
266 'and': andset,
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diff changeset
267 'or': orset,
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diff changeset
268 'list': listset,
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diff changeset
269 'group': getset,
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diff changeset
270 'not': notset,
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diff changeset
271 'func': func,
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diff changeset
272 }
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diff changeset
273
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diff changeset
274 class matchctx(object):
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275 def __init__(self, ctx, subset=None, status=None):
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diff changeset
276 self.ctx = ctx
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diff changeset
277 self.subset = subset
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diff changeset
278 self._status = status
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diff changeset
279 def status(self):
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diff changeset
280 return self._status
14673
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diff changeset
281 def matcher(self, patterns):
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diff changeset
282 return self.ctx.match(patterns)
14551
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diff changeset
283 def filter(self, files):
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diff changeset
284 return [f for f in files if f in self.subset]
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diff changeset
285 def narrow(self, files):
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diff changeset
286 return matchctx(self.ctx, self.filter(files), self._status)
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287
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diff changeset
288 def _intree(funcs, tree):
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diff changeset
289 if isinstance(tree, tuple):
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diff changeset
290 if tree[0] == 'func' and tree[1][0] == 'symbol':
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diff changeset
291 if tree[1][1] in funcs:
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diff changeset
292 return True
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diff changeset
293 for s in tree[1:]:
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diff changeset
294 if _intree(funcs, s):
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diff changeset
295 return True
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diff changeset
296 return False
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297
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298 def getfileset(ctx, expr):
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299 tree, pos = parse(expr)
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300 if (pos != len(expr)):
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301 raise error.ParseError("invalid token", pos)
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302
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303 # do we need status info?
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304 if _intree(['modified', 'added', 'removed', 'deleted',
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305 'unknown', 'ignored', 'clean'], tree):
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306 unknown = _intree(['unknown'], tree)
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307 ignored = _intree(['ignored'], tree)
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308
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309 r = ctx._repo
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310 status = r.status(ctx.p1(), ctx,
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311 unknown=unknown, ignored=ignored, clean=True)
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312 subset = []
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313 for c in status:
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314 subset.extend(c)
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315 else:
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316 status = None
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317 subset = ctx.walk(ctx.match([]))
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318
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319 return getset(matchctx(ctx, subset, status), tree)
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320
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321 # tell hggettext to extract docstrings from these functions:
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322 i18nfunctions = symbols.values()