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@@ -1,186 +1,186 b'' | |||
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1 | 1 | # context.py - changeset and file context objects for mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2006 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms |
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6 | 6 | # of the GNU General Public License, incorporated herein by reference. |
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7 | 7 | |
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8 | 8 | from node import * |
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9 | 9 | from demandload import demandload |
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10 | 10 | demandload(globals(), "ancestor") |
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11 | 11 | |
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12 | 12 | class changectx(object): |
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13 | 13 | """A changecontext object makes access to data related to a particular |
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14 | 14 | changeset convenient.""" |
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15 | 15 | def __init__(self, repo, changeid=None): |
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16 | 16 | """changeid is a revision number, node, or tag""" |
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17 | 17 | self._repo = repo |
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18 | 18 | |
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19 | if not changeid: | |
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19 | if not changeid and changeid != 0: | |
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20 | 20 | p1, p2 = self._repo.dirstate.parents() |
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21 | 21 | self._rev = self._repo.changelog.rev(p1) |
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22 | 22 | if self._rev == -1: |
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23 | 23 | changeid = 'tip' |
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24 | 24 | else: |
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25 | 25 | self._node = p1 |
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26 | 26 | return |
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27 | 27 | |
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28 | 28 | self._node = self._repo.lookup(changeid) |
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29 | 29 | self._rev = self._repo.changelog.rev(self._node) |
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30 | 30 | |
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31 | 31 | def changeset(self): |
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32 | 32 | try: |
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33 | 33 | return self._changeset |
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34 | 34 | except AttributeError: |
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35 | 35 | self._changeset = self._repo.changelog.read(self.node()) |
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36 | 36 | return self._changeset |
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37 | 37 | |
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38 | 38 | def manifest(self): |
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39 | 39 | try: |
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40 | 40 | return self._manifest |
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41 | 41 | except AttributeError: |
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42 | 42 | self._manifest = self._repo.manifest.read(self.changeset()[0]) |
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43 | 43 | return self._manifest |
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44 | 44 | |
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45 | 45 | def rev(self): return self._rev |
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46 | 46 | def node(self): return self._node |
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47 | 47 | def user(self): return self.changeset()[1] |
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48 | 48 | def date(self): return self.changeset()[2] |
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49 | 49 | def files(self): return self.changeset()[3] |
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50 | 50 | def description(self): return self.changeset()[4] |
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51 | 51 | |
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52 | 52 | def parents(self): |
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53 | 53 | """return contexts for each parent changeset""" |
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54 | 54 | p = self._repo.changelog.parents(self._node) |
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55 | 55 | return [ changectx(self._repo, x) for x in p ] |
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56 | 56 | |
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57 | 57 | def children(self): |
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58 | 58 | """return contexts for each child changeset""" |
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59 | 59 | c = self._repo.changelog.children(self._node) |
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60 | 60 | return [ changectx(self._repo, x) for x in c ] |
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61 | 61 | |
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62 | 62 | def filenode(self, path): |
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63 | 63 | node, flag = self._repo.manifest.find(self.changeset()[0], path) |
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64 | 64 | return node |
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65 | 65 | |
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66 | 66 | def filectx(self, path, fileid=None): |
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67 | 67 | """get a file context from this changeset""" |
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68 | 68 | if fileid is None: |
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69 | 69 | fileid = self.filenode(path) |
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70 | 70 | return filectx(self._repo, path, fileid=fileid) |
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71 | 71 | |
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72 | 72 | def filectxs(self): |
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73 | 73 | """generate a file context for each file in this changeset's |
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74 | 74 | manifest""" |
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75 | 75 | mf = self.manifest() |
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76 | 76 | m = mf.keys() |
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77 | 77 | m.sort() |
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78 | 78 | for f in m: |
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79 | 79 | yield self.filectx(f, fileid=mf[f]) |
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80 | 80 | |
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81 | 81 | def ancestor(self, c2): |
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82 | 82 | """ |
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83 | 83 | return the ancestor context of self and c2 |
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84 | 84 | """ |
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85 | 85 | n = self._repo.changelog.ancestor(self._node, c2._node) |
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86 | 86 | return changectx(self._repo, n) |
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87 | 87 | |
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88 | 88 | class filectx(object): |
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89 | 89 | """A filecontext object makes access to data related to a particular |
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90 | 90 | filerevision convenient.""" |
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91 | 91 | def __init__(self, repo, path, changeid=None, fileid=None, filelog=None): |
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92 | 92 | """changeid can be a changeset revision, node, or tag. |
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93 | 93 | fileid can be a file revision or node.""" |
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94 | 94 | self._repo = repo |
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95 | 95 | self._path = path |
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96 | 96 | |
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97 | assert changeid or fileid | |
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97 | assert changeid is not None or fileid is not None | |
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98 | 98 | |
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99 | 99 | if filelog: |
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100 | 100 | self._filelog = filelog |
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101 | 101 | else: |
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102 | 102 | self._filelog = self._repo.file(self._path) |
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103 | 103 | |
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104 |
if |
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104 | if fileid is None: | |
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105 | 105 | # if given a changeset id, go ahead and look up the file |
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106 | 106 | self._changeid = changeid |
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107 | 107 | self._changectx = self.changectx() |
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108 | 108 | self._filenode = self._changectx.filenode(self._path) |
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109 | 109 | else: |
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110 | 110 | # else delay changectx creation |
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111 | 111 | self._filenode = self._filelog.lookup(fileid) |
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112 | 112 | self._changeid = self._filelog.linkrev(self._filenode) |
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113 | 113 | self._filerev = self._filelog.rev(self._filenode) |
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114 | 114 | |
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115 | 115 | def changectx(self): |
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116 | 116 | try: |
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117 | 117 | return self._changectx |
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118 | 118 | except AttributeError: |
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119 | 119 | self._changectx = changectx(self._repo, self._changeid) |
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120 | 120 | return self._changectx |
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121 | 121 | |
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122 | 122 | def filerev(self): return self._filerev |
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123 | 123 | def filenode(self): return self._filenode |
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124 | 124 | def filelog(self): return self._filelog |
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125 | 125 | |
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126 | 126 | def rev(self): return self.changectx().rev() |
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127 | 127 | def node(self): return self.changectx().node() |
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128 | 128 | def user(self): return self.changectx().user() |
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129 | 129 | def date(self): return self.changectx().date() |
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130 | 130 | def files(self): return self.changectx().files() |
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131 | 131 | def description(self): return self.changectx().description() |
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132 | 132 | def manifest(self): return self.changectx().manifest() |
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133 | 133 | |
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134 | 134 | def data(self): return self._filelog.read(self._filenode) |
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135 | 135 | def renamed(self): return self._filelog.renamed(self._filenode) |
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136 | 136 | def path(self): return self._path |
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137 | 137 | |
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138 | 138 | def parents(self): |
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139 | 139 | p = self._path |
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140 | 140 | fl = self._filelog |
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141 | 141 | pl = [ (p, n, fl) for n in self._filelog.parents(self._filenode) ] |
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142 | 142 | |
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143 | 143 | r = self.renamed() |
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144 | 144 | if r: |
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145 | 145 | pl[0] = (r[0], r[1], None) |
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146 | 146 | |
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147 | 147 | return [ filectx(self._repo, p, fileid=n, filelog=l) |
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148 | 148 | for p,n,l in pl if n != nullid ] |
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149 | 149 | |
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150 | 150 | def children(self): |
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151 | 151 | # hard for renames |
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152 | 152 | c = self._filelog.children(self._filenode) |
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153 | 153 | return [ filectx(self._repo, self._path, fileid=x, |
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154 | 154 | filelog=self._filelog) for x in c ] |
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155 | 155 | |
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156 | 156 | def annotate(self): |
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157 | 157 | return self._filelog.annotate(self._filenode) |
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158 | 158 | |
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159 | 159 | def ancestor(self, fc2): |
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160 | 160 | """ |
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161 | 161 | find the common ancestor file context, if any, of self, and fc2 |
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162 | 162 | """ |
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163 | 163 | |
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164 | 164 | acache = {} |
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165 | 165 | flcache = {self._path:self._filelog, fc2._path:fc2._filelog} |
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166 | 166 | def parents(vertex): |
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167 | 167 | if vertex in acache: |
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168 | 168 | return acache[vertex] |
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169 | 169 | f, n = vertex |
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170 | 170 | if f not in flcache: |
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171 | 171 | flcache[f] = self._repo.file(f) |
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172 | 172 | fl = flcache[f] |
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173 | 173 | pl = [ (f,p) for p in fl.parents(n) if p != nullid ] |
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174 | 174 | re = fl.renamed(n) |
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175 | 175 | if re: |
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176 | 176 | pl.append(re) |
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177 | 177 | acache[vertex]=pl |
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178 | 178 | return pl |
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179 | 179 | |
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180 | 180 | a, b = (self._path, self._filenode), (fc2._path, fc2._filenode) |
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181 | 181 | v = ancestor.ancestor(a, b, parents) |
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182 | 182 | if v: |
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183 | 183 | f,n = v |
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184 | 184 | return filectx(self._repo, f, fileid=n, filelog=flcache[f]) |
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185 | 185 | |
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186 | 186 | return None |
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