Mercurial > hg
annotate mercurial/fileset.py @ 25803:b3004d273874
parser: factor out function that parses right-hand side of prefix/infix ops
These two had common pattern. The significant difference was just a result
expression:
prefix: (op-name, rhs)
infix: (op-name, lhs, rhs)
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sun, 05 Jul 2015 18:09:15 +0900 |
parents | 272ff3680bf3 |
children | e71e5629e006 |
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1 # fileset.py - file set queries for mercurial |
11275 | 2 # |
3 # Copyright 2010 Matt Mackall <mpm@selenic.com> | |
4 # | |
5 # This software may be used and distributed according to the terms of the | |
6 # GNU General Public License version 2 or any later version. | |
7 | |
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8 import re |
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9 import parser, error, util, merge |
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10 from i18n import _ |
11275 | 11 |
12 elements = { | |
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13 # token-type: binding-strength, prefix, infix, suffix |
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14 "(": (20, ("group", 1, ")"), ("func", 1, ")"), None), |
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15 "-": (5, ("negate", 19), ("minus", 5), None), |
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16 "not": (10, ("not", 10), None, None), |
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17 "!": (10, ("not", 10), None, None), |
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18 "and": (5, None, ("and", 5), None), |
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19 "&": (5, None, ("and", 5), None), |
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20 "or": (4, None, ("or", 4), None), |
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21 "|": (4, None, ("or", 4), None), |
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22 "+": (4, None, ("or", 4), None), |
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23 ",": (2, None, ("list", 2), None), |
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24 ")": (0, None, None, None), |
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25 "symbol": (0, ("symbol",), None, None), |
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26 "string": (0, ("string",), None, None), |
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27 "end": (0, None, None, None), |
11275 | 28 } |
29 | |
30 keywords = set(['and', 'or', 'not']) | |
31 | |
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32 globchars = ".*{}[]?/\\_" |
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33 |
11275 | 34 def tokenize(program): |
35 pos, l = 0, len(program) | |
36 while pos < l: | |
37 c = program[pos] | |
38 if c.isspace(): # skip inter-token whitespace | |
39 pass | |
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40 elif c in "(),-|&+!": # handle simple operators |
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41 yield (c, None, pos) |
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42 elif (c in '"\'' or c == 'r' and |
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43 program[pos:pos + 2] in ("r'", 'r"')): # handle quoted strings |
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44 if c == 'r': |
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45 pos += 1 |
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46 c = program[pos] |
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47 decode = lambda x: x |
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48 else: |
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49 decode = lambda x: x.decode('string-escape') |
11275 | 50 pos += 1 |
51 s = pos | |
52 while pos < l: # find closing quote | |
53 d = program[pos] | |
54 if d == '\\': # skip over escaped characters | |
55 pos += 2 | |
56 continue | |
57 if d == c: | |
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58 yield ('string', decode(program[s:pos]), s) |
11275 | 59 break |
60 pos += 1 | |
61 else: | |
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62 raise error.ParseError(_("unterminated string"), s) |
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63 elif c.isalnum() or c in globchars or ord(c) > 127: |
14513 | 64 # gather up a symbol/keyword |
11275 | 65 s = pos |
66 pos += 1 | |
67 while pos < l: # find end of symbol | |
68 d = program[pos] | |
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69 if not (d.isalnum() or d in globchars or ord(d) > 127): |
11275 | 70 break |
71 pos += 1 | |
72 sym = program[s:pos] | |
73 if sym in keywords: # operator keywords | |
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74 yield (sym, None, s) |
11275 | 75 else: |
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76 yield ('symbol', sym, s) |
11275 | 77 pos -= 1 |
78 else: | |
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79 raise error.ParseError(_("syntax error"), pos) |
11275 | 80 pos += 1 |
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81 yield ('end', None, pos) |
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83 def parse(expr): |
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84 p = parser.parser(elements) |
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85 tree, pos = p.parse(tokenize(expr)) |
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86 if pos != len(expr): |
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87 raise error.ParseError(_("invalid token"), pos) |
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88 return tree |
11275 | 89 |
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90 def getstring(x, err): |
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91 if x and (x[0] == 'string' or x[0] == 'symbol'): |
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92 return x[1] |
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93 raise error.ParseError(err) |
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94 |
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95 def getset(mctx, x): |
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96 if not x: |
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97 raise error.ParseError(_("missing argument")) |
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98 return methods[x[0]](mctx, *x[1:]) |
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99 |
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100 def stringset(mctx, x): |
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101 m = mctx.matcher([x]) |
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102 return [f for f in mctx.subset if m(f)] |
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103 |
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104 def andset(mctx, x, y): |
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105 return getset(mctx.narrow(getset(mctx, x)), y) |
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106 |
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107 def orset(mctx, x, y): |
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108 # needs optimizing |
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109 xl = getset(mctx, x) |
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110 yl = getset(mctx, y) |
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111 return xl + [f for f in yl if f not in xl] |
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112 |
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113 def notset(mctx, x): |
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114 s = set(getset(mctx, x)) |
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115 return [r for r in mctx.subset if r not in s] |
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116 |
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117 def minusset(mctx, x, y): |
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118 xl = getset(mctx, x) |
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119 yl = set(getset(mctx, y)) |
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120 return [f for f in xl if f not in yl] |
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121 |
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122 def listset(mctx, a, b): |
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123 raise error.ParseError(_("can't use a list in this context")) |
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124 |
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125 def modified(mctx, x): |
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126 """``modified()`` |
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127 File that is modified according to status. |
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128 """ |
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129 # i18n: "modified" is a keyword |
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130 getargs(x, 0, 0, _("modified takes no arguments")) |
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131 s = mctx.status().modified |
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132 return [f for f in mctx.subset if f in s] |
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133 |
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134 def added(mctx, x): |
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135 """``added()`` |
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136 File that is added according to status. |
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137 """ |
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138 # i18n: "added" is a keyword |
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139 getargs(x, 0, 0, _("added takes no arguments")) |
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140 s = mctx.status().added |
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141 return [f for f in mctx.subset if f in s] |
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142 |
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143 def removed(mctx, x): |
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144 """``removed()`` |
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145 File that is removed according to status. |
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146 """ |
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147 # i18n: "removed" is a keyword |
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148 getargs(x, 0, 0, _("removed takes no arguments")) |
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149 s = mctx.status().removed |
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150 return [f for f in mctx.subset if f in s] |
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151 |
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152 def deleted(mctx, x): |
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153 """``deleted()`` |
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154 File that is deleted according to status. |
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155 """ |
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156 # i18n: "deleted" is a keyword |
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157 getargs(x, 0, 0, _("deleted takes no arguments")) |
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158 s = mctx.status().deleted |
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159 return [f for f in mctx.subset if f in s] |
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160 |
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161 def unknown(mctx, x): |
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162 """``unknown()`` |
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163 File that is unknown according to status. These files will only be |
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164 considered if this predicate is used. |
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165 """ |
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166 # i18n: "unknown" is a keyword |
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167 getargs(x, 0, 0, _("unknown takes no arguments")) |
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168 s = mctx.status().unknown |
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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 ignored(mctx, x): |
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172 """``ignored()`` |
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173 File that is ignored according to status. These files will only be |
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174 considered if this predicate is used. |
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175 """ |
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176 # i18n: "ignored" is a keyword |
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177 getargs(x, 0, 0, _("ignored takes no arguments")) |
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178 s = mctx.status().ignored |
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179 return [f for f in mctx.subset if f in s] |
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180 |
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181 def clean(mctx, x): |
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182 """``clean()`` |
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183 File that is clean according to status. |
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184 """ |
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185 # i18n: "clean" is a keyword |
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186 getargs(x, 0, 0, _("clean takes no arguments")) |
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187 s = mctx.status().clean |
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188 return [f for f in mctx.subset if f in s] |
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189 |
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190 def func(mctx, a, b): |
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191 if a[0] == 'symbol' and a[1] in symbols: |
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192 return symbols[a[1]](mctx, b) |
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193 |
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194 keep = lambda fn: getattr(fn, '__doc__', None) is not None |
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195 |
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196 syms = [s for (s, fn) in symbols.items() if keep(fn)] |
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197 raise error.UnknownIdentifier(a[1], syms) |
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198 |
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199 def getlist(x): |
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200 if not x: |
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201 return [] |
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202 if x[0] == 'list': |
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203 return getlist(x[1]) + [x[2]] |
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204 return [x] |
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205 |
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206 def getargs(x, min, max, err): |
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207 l = getlist(x) |
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208 if len(l) < min or len(l) > max: |
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209 raise error.ParseError(err) |
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210 return l |
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211 |
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212 def binary(mctx, x): |
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213 """``binary()`` |
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214 File that appears to be binary (contains NUL bytes). |
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215 """ |
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216 # i18n: "binary" is a keyword |
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217 getargs(x, 0, 0, _("binary takes no arguments")) |
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218 return [f for f in mctx.existing() if util.binary(mctx.ctx[f].data())] |
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219 |
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220 def exec_(mctx, x): |
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221 """``exec()`` |
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222 File that is marked as executable. |
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223 """ |
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224 # i18n: "exec" is a keyword |
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225 getargs(x, 0, 0, _("exec takes no arguments")) |
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226 return [f for f in mctx.existing() if mctx.ctx.flags(f) == 'x'] |
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227 |
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228 def symlink(mctx, x): |
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229 """``symlink()`` |
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230 File that is marked as a symlink. |
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231 """ |
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232 # i18n: "symlink" is a keyword |
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233 getargs(x, 0, 0, _("symlink takes no arguments")) |
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234 return [f for f in mctx.existing() if mctx.ctx.flags(f) == 'l'] |
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235 |
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236 def resolved(mctx, x): |
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237 """``resolved()`` |
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238 File that is marked resolved according to the resolve state. |
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239 """ |
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240 # i18n: "resolved" is a keyword |
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241 getargs(x, 0, 0, _("resolved takes no arguments")) |
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242 if mctx.ctx.rev() is not None: |
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243 return [] |
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244 ms = merge.mergestate(mctx.ctx.repo()) |
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245 return [f for f in mctx.subset if f in ms and ms[f] == 'r'] |
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246 |
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247 def unresolved(mctx, x): |
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248 """``unresolved()`` |
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249 File that is marked unresolved according to the resolve state. |
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250 """ |
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251 # i18n: "unresolved" is a keyword |
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252 getargs(x, 0, 0, _("unresolved takes no arguments")) |
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253 if mctx.ctx.rev() is not None: |
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254 return [] |
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255 ms = merge.mergestate(mctx.ctx.repo()) |
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256 return [f for f in mctx.subset if f in ms and ms[f] == 'u'] |
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257 |
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259 """``hgignore()`` |
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260 File that matches the active .hgignore pattern. |
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261 """ |
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262 # i18n: "hgignore" is a keyword |
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264 ignore = mctx.ctx.repo().dirstate._ignore |
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266 | |
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267 def portable(mctx, x): |
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268 """``portable()`` |
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269 File that has a portable name. (This doesn't include filenames with case |
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270 collisions.) |
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271 """ |
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272 # i18n: "portable" is a keyword |
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273 getargs(x, 0, 0, _("portable takes no arguments")) |
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274 checkwinfilename = util.checkwinfilename |
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275 return [f for f in mctx.subset if checkwinfilename(f) is None] |
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276 |
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277 def grep(mctx, x): |
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278 """``grep(regex)`` |
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279 File contains the given regular expression. |
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280 """ |
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281 try: |
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282 # i18n: "grep" is a keyword |
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283 r = re.compile(getstring(x, _("grep requires a pattern"))) |
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284 except re.error as e: |
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285 raise error.ParseError(_('invalid match pattern: %s') % e) |
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286 return [f for f in mctx.existing() if r.search(mctx.ctx[f].data())] |
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287 |
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288 def _sizetomax(s): |
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289 try: |
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290 s = s.strip() |
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291 for k, v in util._sizeunits: |
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292 if s.endswith(k): |
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293 # max(4k) = 5k - 1, max(4.5k) = 4.6k - 1 |
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294 n = s[:-len(k)] |
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295 inc = 1.0 |
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296 if "." in n: |
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297 inc /= 10 ** len(n.split(".")[1]) |
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298 return int((float(n) + inc) * v) - 1 |
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299 # no extension, this is a precise value |
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300 return int(s) |
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301 except ValueError: |
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302 raise error.ParseError(_("couldn't parse size: %s") % s) |
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303 |
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304 def size(mctx, x): |
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305 """``size(expression)`` |
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306 File size matches the given expression. Examples: |
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307 |
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308 - 1k (files from 1024 to 2047 bytes) |
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309 - < 20k (files less than 20480 bytes) |
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310 - >= .5MB (files at least 524288 bytes) |
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311 - 4k - 1MB (files from 4096 bytes to 1048576 bytes) |
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312 """ |
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313 |
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314 # i18n: "size" is a keyword |
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315 expr = getstring(x, _("size requires an expression")).strip() |
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316 if '-' in expr: # do we have a range? |
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317 a, b = expr.split('-', 1) |
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318 a = util.sizetoint(a) |
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319 b = util.sizetoint(b) |
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320 m = lambda x: x >= a and x <= b |
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321 elif expr.startswith("<="): |
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322 a = util.sizetoint(expr[2:]) |
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323 m = lambda x: x <= a |
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324 elif expr.startswith("<"): |
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325 a = util.sizetoint(expr[1:]) |
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326 m = lambda x: x < a |
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327 elif expr.startswith(">="): |
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328 a = util.sizetoint(expr[2:]) |
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329 m = lambda x: x >= a |
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330 elif expr.startswith(">"): |
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331 a = util.sizetoint(expr[1:]) |
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332 m = lambda x: x > a |
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333 elif expr[0].isdigit or expr[0] == '.': |
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334 a = util.sizetoint(expr) |
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335 b = _sizetomax(expr) |
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336 m = lambda x: x >= a and x <= b |
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337 else: |
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338 raise error.ParseError(_("couldn't parse size: %s") % expr) |
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339 |
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340 return [f for f in mctx.existing() if m(mctx.ctx[f].size())] |
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341 |
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342 def encoding(mctx, x): |
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343 """``encoding(name)`` |
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344 File can be successfully decoded with the given character |
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345 encoding. May not be useful for encodings other than ASCII and |
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346 UTF-8. |
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347 """ |
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348 |
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349 # i18n: "encoding" is a keyword |
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350 enc = getstring(x, _("encoding requires an encoding name")) |
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351 |
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352 s = [] |
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353 for f in mctx.existing(): |
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354 d = mctx.ctx[f].data() |
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355 try: |
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356 d.decode(enc) |
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357 except LookupError: |
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358 raise util.Abort(_("unknown encoding '%s'") % enc) |
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359 except UnicodeDecodeError: |
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360 continue |
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361 s.append(f) |
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362 |
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363 return s |
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364 |
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365 def eol(mctx, x): |
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366 """``eol(style)`` |
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367 File contains newlines of the given style (dos, unix, mac). Binary |
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368 files are excluded, files with mixed line endings match multiple |
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369 styles. |
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370 """ |
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371 |
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372 # i18n: "encoding" is a keyword |
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373 enc = getstring(x, _("encoding requires an encoding name")) |
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374 |
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375 s = [] |
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376 for f in mctx.existing(): |
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377 d = mctx.ctx[f].data() |
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378 if util.binary(d): |
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379 continue |
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380 if (enc == 'dos' or enc == 'win') and '\r\n' in d: |
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381 s.append(f) |
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382 elif enc == 'unix' and re.search('(?<!\r)\n', d): |
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383 s.append(f) |
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384 elif enc == 'mac' and re.search('\r(?!\n)', d): |
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385 s.append(f) |
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386 return s |
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387 |
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388 def copied(mctx, x): |
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389 """``copied()`` |
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390 File that is recorded as being copied. |
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391 """ |
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392 # i18n: "copied" is a keyword |
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393 getargs(x, 0, 0, _("copied takes no arguments")) |
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394 s = [] |
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395 for f in mctx.subset: |
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396 p = mctx.ctx[f].parents() |
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397 if p and p[0].path() != f: |
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398 s.append(f) |
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399 return s |
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400 |
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401 def subrepo(mctx, x): |
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402 """``subrepo([pattern])`` |
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403 Subrepositories whose paths match the given pattern. |
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404 """ |
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405 # i18n: "subrepo" is a keyword |
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406 getargs(x, 0, 1, _("subrepo takes at most one argument")) |
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407 ctx = mctx.ctx |
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408 sstate = sorted(ctx.substate) |
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409 if x: |
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410 # i18n: "subrepo" is a keyword |
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411 pat = getstring(x, _("subrepo requires a pattern or no arguments")) |
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412 |
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413 import match as matchmod # avoid circular import issues |
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414 fast = not matchmod.patkind(pat) |
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415 if fast: |
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416 def m(s): |
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417 return (s == pat) |
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418 else: |
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419 m = matchmod.match(ctx.repo().root, '', [pat], ctx=ctx) |
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420 return [sub for sub in sstate if m(sub)] |
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421 else: |
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422 return [sub for sub in sstate] |
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423 |
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424 symbols = { |
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425 'added': added, |
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426 'binary': binary, |
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427 'clean': clean, |
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428 'copied': copied, |
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429 'deleted': deleted, |
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430 'encoding': encoding, |
18842
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431 'eol': eol, |
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432 'exec': exec_, |
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433 'grep': grep, |
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434 'ignored': ignored, |
14680 | 435 'hgignore': hgignore, |
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436 'modified': modified, |
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437 'portable': portable, |
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438 'removed': removed, |
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439 'resolved': resolved, |
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440 'size': size, |
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441 'symlink': symlink, |
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442 'unknown': unknown, |
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443 'unresolved': unresolved, |
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444 'subrepo': subrepo, |
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445 } |
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446 |
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447 methods = { |
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448 'string': stringset, |
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449 'symbol': stringset, |
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450 'and': andset, |
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451 'or': orset, |
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452 'minus': minusset, |
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453 'list': listset, |
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454 'group': getset, |
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455 'not': notset, |
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456 'func': func, |
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457 } |
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458 |
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459 class matchctx(object): |
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460 def __init__(self, ctx, subset=None, status=None): |
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461 self.ctx = ctx |
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462 self.subset = subset |
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463 self._status = status |
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464 def status(self): |
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465 return self._status |
14673 | 466 def matcher(self, patterns): |
467 return self.ctx.match(patterns) | |
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468 def filter(self, files): |
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469 return [f for f in files if f in self.subset] |
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470 def existing(self): |
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471 if self._status is not None: |
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472 removed = set(self._status[3]) |
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473 unknown = set(self._status[4] + self._status[5]) |
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474 else: |
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475 removed = set() |
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476 unknown = set() |
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477 return (f for f in self.subset |
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478 if (f in self.ctx and f not in removed) or f in unknown) |
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479 def narrow(self, files): |
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480 return matchctx(self.ctx, self.filter(files), self._status) |
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481 |
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482 def _intree(funcs, tree): |
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483 if isinstance(tree, tuple): |
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484 if tree[0] == 'func' and tree[1][0] == 'symbol': |
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485 if tree[1][1] in funcs: |
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486 return True |
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487 for s in tree[1:]: |
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488 if _intree(funcs, s): |
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489 return True |
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490 return False |
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491 |
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492 # filesets using matchctx.existing() |
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493 _existingcallers = [ |
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494 'binary', |
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495 'exec', |
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496 'grep', |
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497 'size', |
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498 'symlink', |
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|
499 ] |
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|
500 |
14673 | 501 def getfileset(ctx, expr): |
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|
502 tree = parse(expr) |
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503 |
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504 # do we need status info? |
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505 if (_intree(['modified', 'added', 'removed', 'deleted', |
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506 'unknown', 'ignored', 'clean'], tree) or |
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507 # Using matchctx.existing() on a workingctx requires us to check |
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508 # for deleted files. |
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509 (ctx.rev() is None and _intree(_existingcallers, tree))): |
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510 unknown = _intree(['unknown'], tree) |
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511 ignored = _intree(['ignored'], tree) |
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512 |
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513 r = ctx.repo() |
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514 status = r.status(ctx.p1(), ctx, |
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515 unknown=unknown, ignored=ignored, clean=True) |
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516 subset = [] |
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517 for c in status: |
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518 subset.extend(c) |
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519 else: |
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|
520 status = None |
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521 subset = list(ctx.walk(ctx.match([]))) |
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522 |
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523 return getset(matchctx(ctx, subset, status), tree) |
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Matt Mackall <mpm@selenic.com>
parents:
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524 |
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fileset: pretty print syntax tree in debug output
Yuya Nishihara <yuya@tcha.org>
parents:
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525 def prettyformat(tree): |
ad1d2c952889
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Yuya Nishihara <yuya@tcha.org>
parents:
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526 return parser.prettyformat(tree, ('string', 'symbol')) |
ad1d2c952889
fileset: pretty print syntax tree in debug output
Yuya Nishihara <yuya@tcha.org>
parents:
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527 |
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0744db5eb51c
fileset: add some function help text
Matt Mackall <mpm@selenic.com>
parents:
14680
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528 # tell hggettext to extract docstrings from these functions: |
0744db5eb51c
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Matt Mackall <mpm@selenic.com>
parents:
14680
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529 i18nfunctions = symbols.values() |