Mercurial > hg
annotate mercurial/smartset.py @ 30920:dc9f086c7691
lock: move lock._host calculation to a function
This allows customization per platform. See the next patch for why.
author | Jun Wu <quark@fb.com> |
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date | Fri, 10 Feb 2017 13:35:21 -0800 |
parents | 1be65deb3d54 |
children | 1076f7eba964 |
rev | line source |
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1 # smartset.py - data structure for revision set |
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 from __future__ import absolute_import |
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9 |
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10 from . import ( |
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11 util, |
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12 ) |
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14 def _formatsetrepr(r): |
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15 """Format an optional printable representation of a set |
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16 |
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17 ======== ================================= |
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18 type(r) example |
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19 ======== ================================= |
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20 tuple ('<not %r>', other) |
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21 str '<branch closed>' |
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22 callable lambda: '<branch %r>' % sorted(b) |
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23 object other |
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24 ======== ================================= |
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25 """ |
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26 if r is None: |
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27 return '' |
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28 elif isinstance(r, tuple): |
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29 return r[0] % r[1:] |
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30 elif isinstance(r, str): |
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31 return r |
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32 elif callable(r): |
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33 return r() |
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34 else: |
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35 return repr(r) |
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36 |
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37 class abstractsmartset(object): |
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38 |
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39 def __nonzero__(self): |
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40 """True if the smartset is not empty""" |
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41 raise NotImplementedError() |
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42 |
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43 def __contains__(self, rev): |
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44 """provide fast membership testing""" |
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45 raise NotImplementedError() |
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46 |
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47 def __iter__(self): |
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48 """iterate the set in the order it is supposed to be iterated""" |
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49 raise NotImplementedError() |
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50 |
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51 # Attributes containing a function to perform a fast iteration in a given |
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52 # direction. A smartset can have none, one, or both defined. |
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53 # |
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54 # Default value is None instead of a function returning None to avoid |
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55 # initializing an iterator just for testing if a fast method exists. |
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56 fastasc = None |
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57 fastdesc = None |
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58 |
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59 def isascending(self): |
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60 """True if the set will iterate in ascending order""" |
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61 raise NotImplementedError() |
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62 |
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63 def isdescending(self): |
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64 """True if the set will iterate in descending order""" |
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65 raise NotImplementedError() |
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66 |
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67 def istopo(self): |
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68 """True if the set will iterate in topographical order""" |
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69 raise NotImplementedError() |
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70 |
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71 def min(self): |
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72 """return the minimum element in the set""" |
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73 if self.fastasc is None: |
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74 v = min(self) |
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75 else: |
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76 for v in self.fastasc(): |
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77 break |
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78 else: |
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79 raise ValueError('arg is an empty sequence') |
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80 self.min = lambda: v |
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81 return v |
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82 |
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83 def max(self): |
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84 """return the maximum element in the set""" |
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85 if self.fastdesc is None: |
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86 return max(self) |
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87 else: |
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88 for v in self.fastdesc(): |
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89 break |
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90 else: |
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91 raise ValueError('arg is an empty sequence') |
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92 self.max = lambda: v |
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93 return v |
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94 |
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95 def first(self): |
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96 """return the first element in the set (user iteration perspective) |
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97 |
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98 Return None if the set is empty""" |
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99 raise NotImplementedError() |
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100 |
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101 def last(self): |
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102 """return the last element in the set (user iteration perspective) |
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103 |
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104 Return None if the set is empty""" |
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105 raise NotImplementedError() |
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106 |
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107 def __len__(self): |
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108 """return the length of the smartsets |
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109 |
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110 This can be expensive on smartset that could be lazy otherwise.""" |
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111 raise NotImplementedError() |
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112 |
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113 def reverse(self): |
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114 """reverse the expected iteration order""" |
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115 raise NotImplementedError() |
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116 |
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117 def sort(self, reverse=True): |
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118 """get the set to iterate in an ascending or descending order""" |
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119 raise NotImplementedError() |
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120 |
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121 def __and__(self, other): |
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122 """Returns a new object with the intersection of the two collections. |
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123 |
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124 This is part of the mandatory API for smartset.""" |
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125 if isinstance(other, fullreposet): |
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126 return self |
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127 return self.filter(other.__contains__, condrepr=other, cache=False) |
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128 |
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129 def __add__(self, other): |
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130 """Returns a new object with the union of the two collections. |
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131 |
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132 This is part of the mandatory API for smartset.""" |
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133 return addset(self, other) |
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134 |
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135 def __sub__(self, other): |
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136 """Returns a new object with the substraction of the two collections. |
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137 |
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138 This is part of the mandatory API for smartset.""" |
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139 c = other.__contains__ |
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140 return self.filter(lambda r: not c(r), condrepr=('<not %r>', other), |
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141 cache=False) |
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142 |
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143 def filter(self, condition, condrepr=None, cache=True): |
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144 """Returns this smartset filtered by condition as a new smartset. |
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145 |
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146 `condition` is a callable which takes a revision number and returns a |
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147 boolean. Optional `condrepr` provides a printable representation of |
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148 the given `condition`. |
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149 |
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150 This is part of the mandatory API for smartset.""" |
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151 # builtin cannot be cached. but do not needs to |
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152 if cache and util.safehasattr(condition, 'func_code'): |
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153 condition = util.cachefunc(condition) |
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154 return filteredset(self, condition, condrepr) |
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155 |
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156 class baseset(abstractsmartset): |
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157 """Basic data structure that represents a revset and contains the basic |
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158 operation that it should be able to perform. |
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159 |
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160 Every method in this class should be implemented by any smartset class. |
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161 """ |
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162 def __init__(self, data=(), datarepr=None, istopo=False): |
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163 """ |
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164 datarepr: a tuple of (format, obj, ...), a function or an object that |
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165 provides a printable representation of the given data. |
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166 """ |
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167 self._ascending = None |
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168 self._istopo = istopo |
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169 if not isinstance(data, list): |
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170 if isinstance(data, set): |
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171 self._set = data |
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172 # set has no order we pick one for stability purpose |
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173 self._ascending = True |
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174 data = list(data) |
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175 self._list = data |
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176 self._datarepr = datarepr |
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177 |
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178 @util.propertycache |
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179 def _set(self): |
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180 return set(self._list) |
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181 |
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182 @util.propertycache |
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183 def _asclist(self): |
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184 asclist = self._list[:] |
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185 asclist.sort() |
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186 return asclist |
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187 |
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188 def __iter__(self): |
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189 if self._ascending is None: |
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190 return iter(self._list) |
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191 elif self._ascending: |
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192 return iter(self._asclist) |
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193 else: |
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194 return reversed(self._asclist) |
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195 |
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196 def fastasc(self): |
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197 return iter(self._asclist) |
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198 |
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199 def fastdesc(self): |
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200 return reversed(self._asclist) |
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201 |
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202 @util.propertycache |
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203 def __contains__(self): |
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204 return self._set.__contains__ |
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205 |
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206 def __nonzero__(self): |
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207 return bool(self._list) |
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208 |
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209 def sort(self, reverse=False): |
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210 self._ascending = not bool(reverse) |
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211 self._istopo = False |
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212 |
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213 def reverse(self): |
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214 if self._ascending is None: |
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215 self._list.reverse() |
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216 else: |
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217 self._ascending = not self._ascending |
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218 self._istopo = False |
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219 |
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220 def __len__(self): |
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221 return len(self._list) |
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222 |
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223 def isascending(self): |
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224 """Returns True if the collection is ascending order, False if not. |
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225 |
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226 This is part of the mandatory API for smartset.""" |
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227 if len(self) <= 1: |
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228 return True |
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229 return self._ascending is not None and self._ascending |
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230 |
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231 def isdescending(self): |
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232 """Returns True if the collection is descending order, False if not. |
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233 |
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234 This is part of the mandatory API for smartset.""" |
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235 if len(self) <= 1: |
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236 return True |
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237 return self._ascending is not None and not self._ascending |
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238 |
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239 def istopo(self): |
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240 """Is the collection is in topographical order or not. |
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241 |
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242 This is part of the mandatory API for smartset.""" |
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243 if len(self) <= 1: |
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244 return True |
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245 return self._istopo |
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246 |
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247 def first(self): |
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248 if self: |
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249 if self._ascending is None: |
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250 return self._list[0] |
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251 elif self._ascending: |
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252 return self._asclist[0] |
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253 else: |
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254 return self._asclist[-1] |
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255 return None |
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256 |
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257 def last(self): |
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258 if self: |
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259 if self._ascending is None: |
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260 return self._list[-1] |
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261 elif self._ascending: |
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262 return self._asclist[-1] |
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263 else: |
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264 return self._asclist[0] |
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265 return None |
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266 |
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267 def __repr__(self): |
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268 d = {None: '', False: '-', True: '+'}[self._ascending] |
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269 s = _formatsetrepr(self._datarepr) |
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270 if not s: |
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271 l = self._list |
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272 # if _list has been built from a set, it might have a different |
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273 # order from one python implementation to another. |
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274 # We fallback to the sorted version for a stable output. |
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275 if self._ascending is not None: |
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276 l = self._asclist |
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277 s = repr(l) |
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278 return '<%s%s %s>' % (type(self).__name__, d, s) |
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279 |
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280 class filteredset(abstractsmartset): |
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281 """Duck type for baseset class which iterates lazily over the revisions in |
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282 the subset and contains a function which tests for membership in the |
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283 revset |
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284 """ |
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285 def __init__(self, subset, condition=lambda x: True, condrepr=None): |
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286 """ |
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287 condition: a function that decide whether a revision in the subset |
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288 belongs to the revset or not. |
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289 condrepr: a tuple of (format, obj, ...), a function or an object that |
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290 provides a printable representation of the given condition. |
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291 """ |
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292 self._subset = subset |
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293 self._condition = condition |
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294 self._condrepr = condrepr |
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295 |
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296 def __contains__(self, x): |
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297 return x in self._subset and self._condition(x) |
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298 |
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299 def __iter__(self): |
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300 return self._iterfilter(self._subset) |
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301 |
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302 def _iterfilter(self, it): |
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303 cond = self._condition |
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304 for x in it: |
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305 if cond(x): |
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306 yield x |
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307 |
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308 @property |
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309 def fastasc(self): |
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310 it = self._subset.fastasc |
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311 if it is None: |
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312 return None |
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313 return lambda: self._iterfilter(it()) |
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314 |
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315 @property |
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316 def fastdesc(self): |
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317 it = self._subset.fastdesc |
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318 if it is None: |
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319 return None |
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320 return lambda: self._iterfilter(it()) |
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321 |
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322 def __nonzero__(self): |
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323 fast = None |
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324 candidates = [self.fastasc if self.isascending() else None, |
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325 self.fastdesc if self.isdescending() else None, |
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326 self.fastasc, |
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327 self.fastdesc] |
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328 for candidate in candidates: |
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329 if candidate is not None: |
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330 fast = candidate |
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331 break |
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332 |
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333 if fast is not None: |
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334 it = fast() |
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335 else: |
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336 it = self |
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337 |
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338 for r in it: |
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339 return True |
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340 return False |
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341 |
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342 def __len__(self): |
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343 # Basic implementation to be changed in future patches. |
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344 # until this gets improved, we use generator expression |
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345 # here, since list comprehensions are free to call __len__ again |
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346 # causing infinite recursion |
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347 l = baseset(r for r in self) |
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348 return len(l) |
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349 |
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350 def sort(self, reverse=False): |
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351 self._subset.sort(reverse=reverse) |
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352 |
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353 def reverse(self): |
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354 self._subset.reverse() |
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355 |
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356 def isascending(self): |
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357 return self._subset.isascending() |
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358 |
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359 def isdescending(self): |
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360 return self._subset.isdescending() |
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361 |
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362 def istopo(self): |
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363 return self._subset.istopo() |
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364 |
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365 def first(self): |
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366 for x in self: |
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367 return x |
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368 return None |
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369 |
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370 def last(self): |
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371 it = None |
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372 if self.isascending(): |
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373 it = self.fastdesc |
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374 elif self.isdescending(): |
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375 it = self.fastasc |
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376 if it is not None: |
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377 for x in it(): |
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378 return x |
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379 return None #empty case |
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380 else: |
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381 x = None |
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382 for x in self: |
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383 pass |
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384 return x |
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385 |
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386 def __repr__(self): |
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387 xs = [repr(self._subset)] |
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388 s = _formatsetrepr(self._condrepr) |
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389 if s: |
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390 xs.append(s) |
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391 return '<%s %s>' % (type(self).__name__, ', '.join(xs)) |
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392 |
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393 def _iterordered(ascending, iter1, iter2): |
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394 """produce an ordered iteration from two iterators with the same order |
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395 |
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396 The ascending is used to indicated the iteration direction. |
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397 """ |
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398 choice = max |
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399 if ascending: |
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400 choice = min |
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401 |
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402 val1 = None |
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403 val2 = None |
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404 try: |
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405 # Consume both iterators in an ordered way until one is empty |
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406 while True: |
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407 if val1 is None: |
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408 val1 = next(iter1) |
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409 if val2 is None: |
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410 val2 = next(iter2) |
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411 n = choice(val1, val2) |
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412 yield n |
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413 if val1 == n: |
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414 val1 = None |
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415 if val2 == n: |
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416 val2 = None |
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417 except StopIteration: |
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418 # Flush any remaining values and consume the other one |
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419 it = iter2 |
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420 if val1 is not None: |
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421 yield val1 |
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422 it = iter1 |
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423 elif val2 is not None: |
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424 # might have been equality and both are empty |
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425 yield val2 |
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426 for val in it: |
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427 yield val |
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428 |
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429 class addset(abstractsmartset): |
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430 """Represent the addition of two sets |
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431 |
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432 Wrapper structure for lazily adding two structures without losing much |
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433 performance on the __contains__ method |
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434 |
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435 If the ascending attribute is set, that means the two structures are |
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436 ordered in either an ascending or descending way. Therefore, we can add |
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437 them maintaining the order by iterating over both at the same time |
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438 |
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439 >>> xs = baseset([0, 3, 2]) |
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440 >>> ys = baseset([5, 2, 4]) |
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441 |
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442 >>> rs = addset(xs, ys) |
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443 >>> bool(rs), 0 in rs, 1 in rs, 5 in rs, rs.first(), rs.last() |
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444 (True, True, False, True, 0, 4) |
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445 >>> rs = addset(xs, baseset([])) |
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446 >>> bool(rs), 0 in rs, 1 in rs, rs.first(), rs.last() |
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447 (True, True, False, 0, 2) |
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448 >>> rs = addset(baseset([]), baseset([])) |
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449 >>> bool(rs), 0 in rs, rs.first(), rs.last() |
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450 (False, False, None, None) |
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451 |
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452 iterate unsorted: |
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453 >>> rs = addset(xs, ys) |
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454 >>> # (use generator because pypy could call len()) |
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455 >>> list(x for x in rs) # without _genlist |
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456 [0, 3, 2, 5, 4] |
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457 >>> assert not rs._genlist |
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458 >>> len(rs) |
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459 5 |
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460 >>> [x for x in rs] # with _genlist |
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461 [0, 3, 2, 5, 4] |
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462 >>> assert rs._genlist |
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463 |
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464 iterate ascending: |
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465 >>> rs = addset(xs, ys, ascending=True) |
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466 >>> # (use generator because pypy could call len()) |
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467 >>> list(x for x in rs), list(x for x in rs.fastasc()) # without _asclist |
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468 ([0, 2, 3, 4, 5], [0, 2, 3, 4, 5]) |
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469 >>> assert not rs._asclist |
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470 >>> len(rs) |
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471 5 |
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472 >>> [x for x in rs], [x for x in rs.fastasc()] |
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473 ([0, 2, 3, 4, 5], [0, 2, 3, 4, 5]) |
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474 >>> assert rs._asclist |
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475 |
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476 iterate descending: |
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477 >>> rs = addset(xs, ys, ascending=False) |
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478 >>> # (use generator because pypy could call len()) |
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479 >>> list(x for x in rs), list(x for x in rs.fastdesc()) # without _asclist |
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480 ([5, 4, 3, 2, 0], [5, 4, 3, 2, 0]) |
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481 >>> assert not rs._asclist |
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482 >>> len(rs) |
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483 5 |
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484 >>> [x for x in rs], [x for x in rs.fastdesc()] |
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485 ([5, 4, 3, 2, 0], [5, 4, 3, 2, 0]) |
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486 >>> assert rs._asclist |
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487 |
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488 iterate ascending without fastasc: |
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489 >>> rs = addset(xs, generatorset(ys), ascending=True) |
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490 >>> assert rs.fastasc is None |
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491 >>> [x for x in rs] |
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492 [0, 2, 3, 4, 5] |
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493 |
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494 iterate descending without fastdesc: |
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495 >>> rs = addset(generatorset(xs), ys, ascending=False) |
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496 >>> assert rs.fastdesc is None |
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497 >>> [x for x in rs] |
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498 [5, 4, 3, 2, 0] |
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499 """ |
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500 def __init__(self, revs1, revs2, ascending=None): |
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501 self._r1 = revs1 |
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502 self._r2 = revs2 |
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503 self._iter = None |
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504 self._ascending = ascending |
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505 self._genlist = None |
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506 self._asclist = None |
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507 |
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508 def __len__(self): |
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509 return len(self._list) |
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510 |
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511 def __nonzero__(self): |
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512 return bool(self._r1) or bool(self._r2) |
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513 |
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514 @util.propertycache |
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515 def _list(self): |
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516 if not self._genlist: |
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517 self._genlist = baseset(iter(self)) |
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518 return self._genlist |
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519 |
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520 def __iter__(self): |
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521 """Iterate over both collections without repeating elements |
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522 |
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523 If the ascending attribute is not set, iterate over the first one and |
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524 then over the second one checking for membership on the first one so we |
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525 dont yield any duplicates. |
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526 |
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527 If the ascending attribute is set, iterate over both collections at the |
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528 same time, yielding only one value at a time in the given order. |
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529 """ |
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530 if self._ascending is None: |
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531 if self._genlist: |
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532 return iter(self._genlist) |
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533 def arbitraryordergen(): |
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534 for r in self._r1: |
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535 yield r |
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536 inr1 = self._r1.__contains__ |
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537 for r in self._r2: |
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538 if not inr1(r): |
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539 yield r |
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540 return arbitraryordergen() |
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541 # try to use our own fast iterator if it exists |
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542 self._trysetasclist() |
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543 if self._ascending: |
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544 attr = 'fastasc' |
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545 else: |
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546 attr = 'fastdesc' |
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547 it = getattr(self, attr) |
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548 if it is not None: |
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549 return it() |
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550 # maybe half of the component supports fast |
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551 # get iterator for _r1 |
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552 iter1 = getattr(self._r1, attr) |
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553 if iter1 is None: |
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554 # let's avoid side effect (not sure it matters) |
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555 iter1 = iter(sorted(self._r1, reverse=not self._ascending)) |
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556 else: |
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557 iter1 = iter1() |
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558 # get iterator for _r2 |
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559 iter2 = getattr(self._r2, attr) |
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560 if iter2 is None: |
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561 # let's avoid side effect (not sure it matters) |
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562 iter2 = iter(sorted(self._r2, reverse=not self._ascending)) |
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563 else: |
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564 iter2 = iter2() |
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565 return _iterordered(self._ascending, iter1, iter2) |
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566 |
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567 def _trysetasclist(self): |
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568 """populate the _asclist attribute if possible and necessary""" |
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569 if self._genlist is not None and self._asclist is None: |
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570 self._asclist = sorted(self._genlist) |
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571 |
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572 @property |
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573 def fastasc(self): |
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574 self._trysetasclist() |
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575 if self._asclist is not None: |
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576 return self._asclist.__iter__ |
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577 iter1 = self._r1.fastasc |
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578 iter2 = self._r2.fastasc |
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579 if None in (iter1, iter2): |
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580 return None |
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581 return lambda: _iterordered(True, iter1(), iter2()) |
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582 |
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583 @property |
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584 def fastdesc(self): |
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585 self._trysetasclist() |
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586 if self._asclist is not None: |
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587 return self._asclist.__reversed__ |
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588 iter1 = self._r1.fastdesc |
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589 iter2 = self._r2.fastdesc |
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590 if None in (iter1, iter2): |
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591 return None |
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592 return lambda: _iterordered(False, iter1(), iter2()) |
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593 |
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594 def __contains__(self, x): |
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595 return x in self._r1 or x in self._r2 |
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596 |
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597 def sort(self, reverse=False): |
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598 """Sort the added set |
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599 |
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600 For this we use the cached list with all the generated values and if we |
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601 know they are ascending or descending we can sort them in a smart way. |
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602 """ |
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603 self._ascending = not reverse |
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604 |
20733
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605 def isascending(self): |
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606 return self._ascending is not None and self._ascending |
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607 |
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608 def isdescending(self): |
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|
609 return self._ascending is not None and not self._ascending |
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610 |
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611 def istopo(self): |
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612 # not worth the trouble asserting if the two sets combined are still |
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613 # in topographical order. Use the sort() predicate to explicitly sort |
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614 # again instead. |
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615 return False |
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|
616 |
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|
617 def reverse(self): |
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618 if self._ascending is None: |
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619 self._list.reverse() |
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620 else: |
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621 self._ascending = not self._ascending |
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622 |
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|
623 def first(self): |
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624 for x in self: |
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625 return x |
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|
626 return None |
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|
627 |
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|
628 def last(self): |
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629 self.reverse() |
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630 val = self.first() |
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|
631 self.reverse() |
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|
632 return val |
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|
633 |
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|
634 def __repr__(self): |
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|
635 d = {None: '', False: '-', True: '+'}[self._ascending] |
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|
636 return '<%s%s %r, %r>' % (type(self).__name__, d, self._r1, self._r2) |
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|
637 |
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|
638 class generatorset(abstractsmartset): |
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|
639 """Wrap a generator for lazy iteration |
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|
640 |
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|
641 Wrapper structure for generators that provides lazy membership and can |
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|
642 be iterated more than once. |
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|
643 When asked for membership it generates values until either it finds the |
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|
644 requested one or has gone through all the elements in the generator |
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|
645 """ |
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|
646 def __init__(self, gen, iterasc=None): |
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|
647 """ |
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648 gen: a generator producing the values for the generatorset. |
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|
649 """ |
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|
650 self._gen = gen |
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|
651 self._asclist = None |
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|
652 self._cache = {} |
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|
653 self._genlist = [] |
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|
654 self._finished = False |
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|
655 self._ascending = True |
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|
656 if iterasc is not None: |
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|
657 if iterasc: |
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|
658 self.fastasc = self._iterator |
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659 self.__contains__ = self._asccontains |
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660 else: |
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|
661 self.fastdesc = self._iterator |
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|
662 self.__contains__ = self._desccontains |
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|
663 |
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|
664 def __nonzero__(self): |
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|
665 # Do not use 'for r in self' because it will enforce the iteration |
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|
666 # order (default ascending), possibly unrolling a whole descending |
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|
667 # iterator. |
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|
668 if self._genlist: |
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|
669 return True |
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|
670 for r in self._consumegen(): |
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|
671 return True |
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|
672 return False |
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|
673 |
20536
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|
674 def __contains__(self, x): |
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changeset
|
675 if x in self._cache: |
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Lucas Moscovicz <lmoscovicz@fb.com>
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20534
diff
changeset
|
676 return self._cache[x] |
532b114a6e02
revset: added generatorset class with cached __contains__ method
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20534
diff
changeset
|
677 |
20828
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
678 # Use new values only, as existing values would be cached. |
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
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diff
changeset
|
679 for l in self._consumegen(): |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
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20613
diff
changeset
|
680 if l == x: |
f2bb7ba59456
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diff
changeset
|
681 return True |
20536
532b114a6e02
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
682 |
532b114a6e02
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diff
changeset
|
683 self._cache[x] = False |
532b114a6e02
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Lucas Moscovicz <lmoscovicz@fb.com>
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diff
changeset
|
684 return False |
532b114a6e02
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Lucas Moscovicz <lmoscovicz@fb.com>
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diff
changeset
|
685 |
22757
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
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22756
diff
changeset
|
686 def _asccontains(self, x): |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
687 """version of contains optimised for ascending generator""" |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
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22756
diff
changeset
|
688 if x in self._cache: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
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diff
changeset
|
689 return self._cache[x] |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
690 |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
691 # Use new values only, as existing values would be cached. |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
692 for l in self._consumegen(): |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
693 if l == x: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
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22756
diff
changeset
|
694 return True |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
695 if l > x: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
696 break |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
697 |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
698 self._cache[x] = False |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
699 return False |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
700 |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
701 def _desccontains(self, x): |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
702 """version of contains optimised for descending generator""" |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
703 if x in self._cache: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
704 return self._cache[x] |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
705 |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
706 # Use new values only, as existing values would be cached. |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
707 for l in self._consumegen(): |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
708 if l == x: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
709 return True |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
710 if l < x: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
711 break |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
712 |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
713 self._cache[x] = False |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
714 return False |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
715 |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
716 def __iter__(self): |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
717 if self._ascending: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
718 it = self.fastasc |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
719 else: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
720 it = self.fastdesc |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
721 if it is not None: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
722 return it() |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
723 # we need to consume the iterator |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
724 for x in self._consumegen(): |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
725 pass |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
726 # recall the same code |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
727 return iter(self) |
22797
61ecabeeadb3
generatorset: move iteration code into _iterator
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22796
diff
changeset
|
728 |
61ecabeeadb3
generatorset: move iteration code into _iterator
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22796
diff
changeset
|
729 def _iterator(self): |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
730 if self._finished: |
22670
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
731 return iter(self._genlist) |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
732 |
22494
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
733 # We have to use this complex iteration strategy to allow multiple |
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
734 # iterations at the same time. We need to be able to catch revision |
23139
e53f6b72a0e4
spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents:
23127
diff
changeset
|
735 # removed from _consumegen and added to genlist in another instance. |
22494
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
736 # |
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
737 # Getting rid of it would provide an about 15% speed up on this |
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
738 # iteration. |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
739 genlist = self._genlist |
22669
00c8abe64cf3
revset: prefetch an attribute in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22539
diff
changeset
|
740 nextrev = self._consumegen().next |
00c8abe64cf3
revset: prefetch an attribute in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22539
diff
changeset
|
741 _len = len # cache global lookup |
22670
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
742 def gen(): |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
743 i = 0 |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
744 while True: |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
745 if i < _len(genlist): |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
746 yield genlist[i] |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
747 else: |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
748 yield nextrev() |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
749 i += 1 |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
750 return gen() |
20828
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
751 |
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
752 def _consumegen(self): |
22528
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
753 cache = self._cache |
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
754 genlist = self._genlist.append |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
755 for item in self._gen: |
22528
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
756 cache[item] = True |
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
757 genlist(item) |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
758 yield item |
22798
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
759 if not self._finished: |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
760 self._finished = True |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
761 asc = self._genlist[:] |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
762 asc.sort() |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
763 self._asclist = asc |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
764 self.fastasc = asc.__iter__ |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
765 self.fastdesc = asc.__reversed__ |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
766 |
22996
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
767 def __len__(self): |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
768 for x in self._consumegen(): |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
769 pass |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
770 return len(self._genlist) |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
771 |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
772 def sort(self, reverse=False): |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
773 self._ascending = not reverse |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
774 |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
775 def reverse(self): |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
776 self._ascending = not self._ascending |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
777 |
22801
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
778 def isascending(self): |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
779 return self._ascending |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
780 |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
781 def isdescending(self): |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
782 return not self._ascending |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
783 |
29346
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
784 def istopo(self): |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
785 # not worth the trouble asserting if the two sets combined are still |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
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diff
changeset
|
786 # in topographical order. Use the sort() predicate to explicitly sort |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
787 # again instead. |
38e0c83c7ee4
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Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
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|
788 return False |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
789 |
22811
c1fd827e1ae0
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changeset
|
790 def first(self): |
c1fd827e1ae0
generatorset: implement first and last methods
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changeset
|
791 if self._ascending: |
c1fd827e1ae0
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|
792 it = self.fastasc |
c1fd827e1ae0
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diff
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|
793 else: |
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|
794 it = self.fastdesc |
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|
795 if it is None: |
c1fd827e1ae0
generatorset: implement first and last methods
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diff
changeset
|
796 # we need to consume all and try again |
c1fd827e1ae0
generatorset: implement first and last methods
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changeset
|
797 for x in self._consumegen(): |
c1fd827e1ae0
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changeset
|
798 pass |
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Pierre-Yves David <pierre-yves.david@fb.com>
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|
799 return self.first() |
25146
f542a2c89b60
generatorset: use 'next()' to simplify the code
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25145
diff
changeset
|
800 return next(it(), None) |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
801 |
c1fd827e1ae0
generatorset: implement first and last methods
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diff
changeset
|
802 def last(self): |
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changeset
|
803 if self._ascending: |
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generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
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|
804 it = self.fastdesc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
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diff
changeset
|
805 else: |
c1fd827e1ae0
generatorset: implement first and last methods
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parents:
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changeset
|
806 it = self.fastasc |
c1fd827e1ae0
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parents:
22810
diff
changeset
|
807 if it is None: |
c1fd827e1ae0
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parents:
22810
diff
changeset
|
808 # we need to consume all and try again |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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changeset
|
809 for x in self._consumegen(): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
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diff
changeset
|
810 pass |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
811 return self.first() |
25146
f542a2c89b60
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25145
diff
changeset
|
812 return next(it(), None) |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
813 |
24457
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
814 def __repr__(self): |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
815 d = {False: '-', True: '+'}[self._ascending] |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
816 return '<%s%s>' % (type(self).__name__, d) |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
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diff
changeset
|
817 |
24116
8b90a60181d1
revset: drop factory that promotes spanset to fullreposet
Yuya Nishihara <yuya@tcha.org>
parents:
24115
diff
changeset
|
818 class spanset(abstractsmartset): |
20482
a979078bd788
revset: added spanset class to represent revision ranges
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parents:
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changeset
|
819 """Duck type for baseset class which represents a range of revisions and |
a979078bd788
revset: added spanset class to represent revision ranges
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
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diff
changeset
|
820 can work lazily and without having all the range in memory |
20737
b141080e70c5
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
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diff
changeset
|
821 |
b141080e70c5
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parents:
20734
diff
changeset
|
822 Note that spanset(x, y) behave almost like xrange(x, y) except for two |
b141080e70c5
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
823 notable points: |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
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diff
changeset
|
824 - when x < y it will be automatically descending, |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
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diff
changeset
|
825 - revision filtered with this repoview will be skipped. |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
826 |
20482
a979078bd788
revset: added spanset class to represent revision ranges
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20481
diff
changeset
|
827 """ |
20525
aa73a6327df4
revset: changed spanset to take a repo argument
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20521
diff
changeset
|
828 def __init__(self, repo, start=0, end=None): |
20737
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
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diff
changeset
|
829 """ |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
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diff
changeset
|
830 start: first revision included the set |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
831 (default to 0) |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
832 end: first revision excluded (last+1) |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
833 (default to len(repo) |
b141080e70c5
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
834 |
b141080e70c5
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
835 Spanset will be descending if `end` < `start`. |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
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diff
changeset
|
836 """ |
22717
b89f7e3a414d
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diff
changeset
|
837 if end is None: |
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Pierre-Yves David <pierre-yves.david@fb.com>
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changeset
|
838 end = len(repo) |
b89f7e3a414d
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diff
changeset
|
839 self._ascending = start <= end |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
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changeset
|
840 if not self._ascending: |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
841 start, end = end + 1, start +1 |
20482
a979078bd788
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parents:
20481
diff
changeset
|
842 self._start = start |
22717
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Pierre-Yves David <pierre-yves.david@fb.com>
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changeset
|
843 self._end = end |
20525
aa73a6327df4
revset: changed spanset to take a repo argument
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20521
diff
changeset
|
844 self._hiddenrevs = repo.changelog.filteredrevs |
20521
1850a7f5fb66
revset: changed spanset implementation to take hidden revisions into account
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
845 |
22717
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Pierre-Yves David <pierre-yves.david@fb.com>
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changeset
|
846 def sort(self, reverse=False): |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
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parents:
22716
diff
changeset
|
847 self._ascending = not reverse |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
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changeset
|
848 |
b89f7e3a414d
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parents:
22716
diff
changeset
|
849 def reverse(self): |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
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diff
changeset
|
850 self._ascending = not self._ascending |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
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parents:
22716
diff
changeset
|
851 |
29346
38e0c83c7ee4
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Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
852 def istopo(self): |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
853 # not worth the trouble asserting if the two sets combined are still |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
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diff
changeset
|
854 # in topographical order. Use the sort() predicate to explicitly sort |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
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diff
changeset
|
855 # again instead. |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
856 return False |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
857 |
22717
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
858 def _iterfilter(self, iterrange): |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
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parents:
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changeset
|
859 s = self._hiddenrevs |
b89f7e3a414d
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parents:
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changeset
|
860 for r in iterrange: |
b89f7e3a414d
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parents:
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changeset
|
861 if r not in s: |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
862 yield r |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
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diff
changeset
|
863 |
20482
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diff
changeset
|
864 def __iter__(self): |
22717
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changeset
|
865 if self._ascending: |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
866 return self.fastasc() |
20482
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revset: added spanset class to represent revision ranges
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diff
changeset
|
867 else: |
22717
b89f7e3a414d
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changeset
|
868 return self.fastdesc() |
b89f7e3a414d
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diff
changeset
|
869 |
b89f7e3a414d
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22716
diff
changeset
|
870 def fastasc(self): |
b89f7e3a414d
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changeset
|
871 iterrange = xrange(self._start, self._end) |
20521
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revset: changed spanset implementation to take hidden revisions into account
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diff
changeset
|
872 if self._hiddenrevs: |
22717
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parents:
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diff
changeset
|
873 return self._iterfilter(iterrange) |
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changeset
|
874 return iter(iterrange) |
b89f7e3a414d
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parents:
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diff
changeset
|
875 |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
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changeset
|
876 def fastdesc(self): |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
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diff
changeset
|
877 iterrange = xrange(self._end - 1, self._start - 1, -1) |
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changeset
|
878 if self._hiddenrevs: |
b89f7e3a414d
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parents:
22716
diff
changeset
|
879 return self._iterfilter(iterrange) |
b89f7e3a414d
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changeset
|
880 return iter(iterrange) |
20482
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revset: added spanset class to represent revision ranges
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diff
changeset
|
881 |
21201
c8b9c6147108
revset: fix revision filtering in spanset.contains (regression)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21199
diff
changeset
|
882 def __contains__(self, rev): |
22526
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Pierre-Yves David <pierre-yves.david@fb.com>
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diff
changeset
|
883 hidden = self._hiddenrevs |
22718
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spanset: do a single range check in __contains__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22717
diff
changeset
|
884 return ((self._start <= rev < self._end) |
22526
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parents:
22510
diff
changeset
|
885 and not (hidden and rev in hidden)) |
20482
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20481
diff
changeset
|
886 |
20716
fa1ac5faa7c4
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
changeset
|
887 def __nonzero__(self): |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
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parents:
20714
diff
changeset
|
888 for r in self: |
fa1ac5faa7c4
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
changeset
|
889 return True |
fa1ac5faa7c4
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
changeset
|
890 return False |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
changeset
|
891 |
20484
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revset: added operations to spanset to duck type baseset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20483
diff
changeset
|
892 def __len__(self): |
20521
1850a7f5fb66
revset: changed spanset implementation to take hidden revisions into account
Lucas Moscovicz <lmoscovicz@fb.com>
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diff
changeset
|
893 if not self._hiddenrevs: |
1850a7f5fb66
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
894 return abs(self._end - self._start) |
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
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|
895 else: |
1850a7f5fb66
revset: changed spanset implementation to take hidden revisions into account
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
896 count = 0 |
21205
e2031c8ca4f8
revset: also inline spanset._contained in __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21204
diff
changeset
|
897 start = self._start |
e2031c8ca4f8
revset: also inline spanset._contained in __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21204
diff
changeset
|
898 end = self._end |
20521
1850a7f5fb66
revset: changed spanset implementation to take hidden revisions into account
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
899 for rev in self._hiddenrevs: |
21284
3e53a64345c1
revset: cosmetic changes in spanset range comparison
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21283
diff
changeset
|
900 if (end < rev <= start) or (start <= rev < end): |
20521
1850a7f5fb66
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
901 count += 1 |
1850a7f5fb66
revset: changed spanset implementation to take hidden revisions into account
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
902 return abs(self._end - self._start) - count |
20484
0f1ef9e9e904
revset: added operations to spanset to duck type baseset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20483
diff
changeset
|
903 |
20725
cf628b50afbb
revset: added isascending and isdescending methods to smartset classes
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20724
diff
changeset
|
904 def isascending(self): |
23826
c90d195320c5
revset: fix spanset.isascending() to honor sort() or reverse() request
Yuya Nishihara <yuya@tcha.org>
parents:
23724
diff
changeset
|
905 return self._ascending |
20725
cf628b50afbb
revset: added isascending and isdescending methods to smartset classes
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20724
diff
changeset
|
906 |
cf628b50afbb
revset: added isascending and isdescending methods to smartset classes
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20724
diff
changeset
|
907 def isdescending(self): |
23826
c90d195320c5
revset: fix spanset.isascending() to honor sort() or reverse() request
Yuya Nishihara <yuya@tcha.org>
parents:
23724
diff
changeset
|
908 return not self._ascending |
20725
cf628b50afbb
revset: added isascending and isdescending methods to smartset classes
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20724
diff
changeset
|
909 |
22809
88dad916c008
spanset: implement `first` and `last` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22808
diff
changeset
|
910 def first(self): |
88dad916c008
spanset: implement `first` and `last` methods
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parents:
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diff
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|
911 if self._ascending: |
88dad916c008
spanset: implement `first` and `last` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22808
diff
changeset
|
912 it = self.fastasc |
88dad916c008
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parents:
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diff
changeset
|
913 else: |
88dad916c008
spanset: implement `first` and `last` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22808
diff
changeset
|
914 it = self.fastdesc |
88dad916c008
spanset: implement `first` and `last` methods
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parents:
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diff
changeset
|
915 for x in it(): |
88dad916c008
spanset: implement `first` and `last` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22808
diff
changeset
|
916 return x |
88dad916c008
spanset: implement `first` and `last` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22808
diff
changeset
|
917 return None |
88dad916c008
spanset: implement `first` and `last` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
918 |
88dad916c008
spanset: implement `first` and `last` methods
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parents:
22808
diff
changeset
|
919 def last(self): |
88dad916c008
spanset: implement `first` and `last` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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|
920 if self._ascending: |
88dad916c008
spanset: implement `first` and `last` methods
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parents:
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diff
changeset
|
921 it = self.fastdesc |
88dad916c008
spanset: implement `first` and `last` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
922 else: |
88dad916c008
spanset: implement `first` and `last` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22808
diff
changeset
|
923 it = self.fastasc |
88dad916c008
spanset: implement `first` and `last` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22808
diff
changeset
|
924 for x in it(): |
88dad916c008
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
925 return x |
88dad916c008
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parents:
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diff
changeset
|
926 return None |
88dad916c008
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
927 |
24457
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
928 def __repr__(self): |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
929 d = {False: '-', True: '+'}[self._ascending] |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
930 return '<%s%s %d:%d>' % (type(self).__name__, d, |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
931 self._start, self._end - 1) |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
932 |
24116
8b90a60181d1
revset: drop factory that promotes spanset to fullreposet
Yuya Nishihara <yuya@tcha.org>
parents:
24115
diff
changeset
|
933 class fullreposet(spanset): |
22508
2434c68d82a8
revert: add a fullreposet class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22504
diff
changeset
|
934 """a set containing all revisions in the repo |
2434c68d82a8
revert: add a fullreposet class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22504
diff
changeset
|
935 |
24204
d2de20e1451f
revset: extend fullreposet to make "null" revision magically appears in set
Yuya Nishihara <yuya@tcha.org>
parents:
24203
diff
changeset
|
936 This class exists to host special optimization and magic to handle virtual |
d2de20e1451f
revset: extend fullreposet to make "null" revision magically appears in set
Yuya Nishihara <yuya@tcha.org>
parents:
24203
diff
changeset
|
937 revisions such as "null". |
22508
2434c68d82a8
revert: add a fullreposet class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22504
diff
changeset
|
938 """ |
2434c68d82a8
revert: add a fullreposet class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22504
diff
changeset
|
939 |
2434c68d82a8
revert: add a fullreposet class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22504
diff
changeset
|
940 def __init__(self, repo): |
2434c68d82a8
revert: add a fullreposet class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22504
diff
changeset
|
941 super(fullreposet, self).__init__(repo) |
2434c68d82a8
revert: add a fullreposet class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22504
diff
changeset
|
942 |
22510
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
943 def __and__(self, other): |
23139
e53f6b72a0e4
spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents:
23127
diff
changeset
|
944 """As self contains the whole repo, all of the other set should also be |
e53f6b72a0e4
spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents:
23127
diff
changeset
|
945 in self. Therefore `self & other = other`. |
22510
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
946 |
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
947 This boldly assumes the other contains valid revs only. |
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
948 """ |
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
949 # other not a smartset, make is so |
22883
e7b8cf352614
fullreposet: detect smartset using "isascending" instead of "set"
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22882
diff
changeset
|
950 if not util.safehasattr(other, 'isascending'): |
22510
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
951 # filter out hidden revision |
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
952 # (this boldly assumes all smartset are pure) |
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
953 # |
911f5a6579d1
revset: fast implementation for fullreposet.__and__
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parents:
22509
diff
changeset
|
954 # `other` was used with "&", let's assume this is a set like |
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
955 # object. |
911f5a6579d1
revset: fast implementation for fullreposet.__and__
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parents:
22509
diff
changeset
|
956 other = baseset(other - self._hiddenrevs) |
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
957 |
23827
4982fade9733
revset: simplify fullreposet.__and__ to call sort() with boolean flag
Yuya Nishihara <yuya@tcha.org>
parents:
23822
diff
changeset
|
958 other.sort(reverse=self.isdescending()) |
22510
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
959 return other |
911f5a6579d1
revset: fast implementation for fullreposet.__and__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22509
diff
changeset
|
960 |
30881
1be65deb3d54
smartset: move set classes and related functions from revset module (API)
Yuya Nishihara <yuya@tcha.org>
parents:
30850
diff
changeset
|
961 def prettyformat(revs): |
24458
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
962 lines = [] |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
963 rs = repr(revs) |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
964 p = 0 |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
965 while p < len(rs): |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
966 q = rs.find('<', p + 1) |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
967 if q < 0: |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
968 q = len(rs) |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
969 l = rs.count('<', 0, p) - rs.count('>', 0, p) |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
970 assert l >= 0 |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
971 lines.append((l, rs[p:q].rstrip())) |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
972 p = q |
7d87f672d069
debugrevspec: show nesting structure of smartsets if verbose
Yuya Nishihara <yuya@tcha.org>
parents:
24457
diff
changeset
|
973 return '\n'.join(' ' * l + s for l, s in lines) |