Mercurial > kallithea
annotate rhodecode/lib/vcs/nodes.py @ 3832:07f8039ef090 beta
Use repo-scann at latest possible state.
- we can ensure every config/checks were made before that step
- it should fix issues with custom GIT paths
author | Marcin Kuzminski <marcin@python-works.com> |
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date | Thu, 09 May 2013 14:52:05 +0200 |
parents | d7488551578e |
children | 14a6e9ffd9c8 |
rev | line source |
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2007
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1 # -*- coding: utf-8 -*- |
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2 """ |
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3 vcs.nodes |
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4 ~~~~~~~~~ |
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5 |
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6 Module holding everything related to vcs nodes. |
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7 |
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8 :created_on: Apr 8, 2010 |
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9 :copyright: (c) 2010-2011 by Marcin Kuzminski, Lukasz Balcerzak. |
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10 """ |
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11 import os |
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12 import stat |
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13 import posixpath |
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14 import mimetypes |
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15 |
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16 from pygments import lexers |
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17 |
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18 from rhodecode.lib.vcs.backends.base import EmptyChangeset |
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19 from rhodecode.lib.vcs.exceptions import NodeError, RemovedFileNodeError |
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20 from rhodecode.lib.vcs.utils.lazy import LazyProperty |
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21 from rhodecode.lib.vcs.utils import safe_unicode |
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22 |
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23 |
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24 class NodeKind: |
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25 SUBMODULE = -1 |
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26 DIR = 1 |
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27 FILE = 2 |
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28 |
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29 |
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30 class NodeState: |
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31 ADDED = u'added' |
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32 CHANGED = u'changed' |
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33 NOT_CHANGED = u'not changed' |
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34 REMOVED = u'removed' |
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35 |
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36 |
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37 class NodeGeneratorBase(object): |
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38 """ |
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39 Base class for removed added and changed filenodes, it's a lazy generator |
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40 class that will create filenodes only on iteration or call |
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41 |
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42 The len method doesn't need to create filenodes at all |
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43 """ |
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44 |
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45 def __init__(self, current_paths, cs): |
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46 self.cs = cs |
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47 self.current_paths = current_paths |
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48 |
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49 def __call__(self): |
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50 return [n for n in self] |
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51 |
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52 def __getslice__(self, i, j): |
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53 for p in self.current_paths[i:j]: |
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54 yield self.cs.get_node(p) |
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55 |
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56 def __len__(self): |
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57 return len(self.current_paths) |
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58 |
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59 def __iter__(self): |
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60 for p in self.current_paths: |
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61 yield self.cs.get_node(p) |
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62 |
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63 |
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64 class AddedFileNodesGenerator(NodeGeneratorBase): |
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65 """ |
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66 Class holding Added files for current changeset |
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67 """ |
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68 pass |
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69 |
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70 |
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71 class ChangedFileNodesGenerator(NodeGeneratorBase): |
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72 """ |
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73 Class holding Changed files for current changeset |
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74 """ |
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75 pass |
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76 |
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77 |
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78 class RemovedFileNodesGenerator(NodeGeneratorBase): |
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79 """ |
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80 Class holding removed files for current changeset |
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81 """ |
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82 def __iter__(self): |
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83 for p in self.current_paths: |
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84 yield RemovedFileNode(path=p) |
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85 |
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86 def __getslice__(self, i, j): |
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87 for p in self.current_paths[i:j]: |
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88 yield RemovedFileNode(path=p) |
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89 |
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90 |
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91 class Node(object): |
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92 """ |
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93 Simplest class representing file or directory on repository. SCM backends |
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94 should use ``FileNode`` and ``DirNode`` subclasses rather than ``Node`` |
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95 directly. |
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96 |
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97 Node's ``path`` cannot start with slash as we operate on *relative* paths |
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98 only. Moreover, every single node is identified by the ``path`` attribute, |
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99 so it cannot end with slash, too. Otherwise, path could lead to mistakes. |
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100 """ |
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101 |
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102 def __init__(self, path, kind): |
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103 if path.startswith('/'): |
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104 raise NodeError("Cannot initialize Node objects with slash at " |
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105 "the beginning as only relative paths are supported") |
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106 self.path = path.rstrip('/') |
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107 if path == '' and kind != NodeKind.DIR: |
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108 raise NodeError("Only DirNode and its subclasses may be " |
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109 "initialized with empty path") |
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110 self.kind = kind |
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111 #self.dirs, self.files = [], [] |
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112 if self.is_root() and not self.is_dir(): |
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113 raise NodeError("Root node cannot be FILE kind") |
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114 |
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115 @LazyProperty |
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116 def parent(self): |
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117 parent_path = self.get_parent_path() |
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118 if parent_path: |
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119 if self.changeset: |
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120 return self.changeset.get_node(parent_path) |
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121 return DirNode(parent_path) |
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122 return None |
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123 |
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124 @LazyProperty |
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125 def unicode_path(self): |
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126 return safe_unicode(self.path) |
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127 |
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128 @LazyProperty |
2007
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129 def name(self): |
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130 """ |
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131 Returns name of the node so if its path |
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132 then only last part is returned. |
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133 """ |
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134 return safe_unicode(self.path.rstrip('/').split('/')[-1]) |
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135 |
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136 def _get_kind(self): |
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137 return self._kind |
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138 |
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139 def _set_kind(self, kind): |
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140 if hasattr(self, '_kind'): |
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141 raise NodeError("Cannot change node's kind") |
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142 else: |
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143 self._kind = kind |
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144 # Post setter check (path's trailing slash) |
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145 if self.path.endswith('/'): |
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146 raise NodeError("Node's path cannot end with slash") |
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147 |
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148 kind = property(_get_kind, _set_kind) |
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149 |
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150 def __cmp__(self, other): |
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151 """ |
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152 Comparator using name of the node, needed for quick list sorting. |
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153 """ |
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154 kind_cmp = cmp(self.kind, other.kind) |
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155 if kind_cmp: |
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156 return kind_cmp |
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157 return cmp(self.name, other.name) |
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158 |
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159 def __eq__(self, other): |
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160 for attr in ['name', 'path', 'kind']: |
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161 if getattr(self, attr) != getattr(other, attr): |
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162 return False |
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163 if self.is_file(): |
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164 if self.content != other.content: |
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165 return False |
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166 else: |
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167 # For DirNode's check without entering each dir |
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168 self_nodes_paths = list(sorted(n.path for n in self.nodes)) |
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169 other_nodes_paths = list(sorted(n.path for n in self.nodes)) |
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170 if self_nodes_paths != other_nodes_paths: |
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171 return False |
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172 return True |
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173 |
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174 def __nq__(self, other): |
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175 return not self.__eq__(other) |
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176 |
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177 def __repr__(self): |
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178 return '<%s %r>' % (self.__class__.__name__, self.path) |
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179 |
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180 def __str__(self): |
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181 return self.__repr__() |
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182 |
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183 def __unicode__(self): |
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184 return self.name |
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185 |
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186 def get_parent_path(self): |
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187 """ |
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188 Returns node's parent path or empty string if node is root. |
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189 """ |
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190 if self.is_root(): |
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191 return '' |
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192 return posixpath.dirname(self.path.rstrip('/')) + '/' |
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193 |
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194 def is_file(self): |
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195 """ |
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196 Returns ``True`` if node's kind is ``NodeKind.FILE``, ``False`` |
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197 otherwise. |
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198 """ |
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199 return self.kind == NodeKind.FILE |
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200 |
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201 def is_dir(self): |
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202 """ |
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203 Returns ``True`` if node's kind is ``NodeKind.DIR``, ``False`` |
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204 otherwise. |
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205 """ |
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206 return self.kind == NodeKind.DIR |
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207 |
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208 def is_root(self): |
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209 """ |
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210 Returns ``True`` if node is a root node and ``False`` otherwise. |
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211 """ |
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212 return self.kind == NodeKind.DIR and self.path == '' |
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213 |
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214 def is_submodule(self): |
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215 """ |
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216 Returns ``True`` if node's kind is ``NodeKind.SUBMODULE``, ``False`` |
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217 otherwise. |
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218 """ |
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219 return self.kind == NodeKind.SUBMODULE |
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220 |
2007
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221 @LazyProperty |
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222 def added(self): |
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223 return self.state is NodeState.ADDED |
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224 |
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225 @LazyProperty |
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226 def changed(self): |
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227 return self.state is NodeState.CHANGED |
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228 |
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229 @LazyProperty |
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230 def not_changed(self): |
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231 return self.state is NodeState.NOT_CHANGED |
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232 |
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233 @LazyProperty |
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234 def removed(self): |
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235 return self.state is NodeState.REMOVED |
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236 |
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237 |
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238 class FileNode(Node): |
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239 """ |
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240 Class representing file nodes. |
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241 |
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242 :attribute: path: path to the node, relative to repostiory's root |
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243 :attribute: content: if given arbitrary sets content of the file |
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244 :attribute: changeset: if given, first time content is accessed, callback |
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245 :attribute: mode: octal stat mode for a node. Default is 0100644. |
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246 """ |
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247 |
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248 def __init__(self, path, content=None, changeset=None, mode=None): |
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249 """ |
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250 Only one of ``content`` and ``changeset`` may be given. Passing both |
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251 would raise ``NodeError`` exception. |
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252 |
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253 :param path: relative path to the node |
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254 :param content: content may be passed to constructor |
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255 :param changeset: if given, will use it to lazily fetch content |
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256 :param mode: octal representation of ST_MODE (i.e. 0100644) |
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257 """ |
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258 |
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259 if content and changeset: |
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260 raise NodeError("Cannot use both content and changeset") |
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261 super(FileNode, self).__init__(path, kind=NodeKind.FILE) |
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262 self.changeset = changeset |
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263 self._content = content |
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264 self._mode = mode or 0100644 |
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265 |
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266 @LazyProperty |
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267 def mode(self): |
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268 """ |
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269 Returns lazily mode of the FileNode. If ``changeset`` is not set, would |
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270 use value given at initialization or 0100644 (default). |
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271 """ |
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272 if self.changeset: |
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273 mode = self.changeset.get_file_mode(self.path) |
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274 else: |
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275 mode = self._mode |
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276 return mode |
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277 |
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278 def _get_content(self): |
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279 if self.changeset: |
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280 content = self.changeset.get_file_content(self.path) |
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281 else: |
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282 content = self._content |
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283 return content |
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284 |
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285 @property |
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286 def content(self): |
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287 """ |
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288 Returns lazily content of the FileNode. If possible, would try to |
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289 decode content from UTF-8. |
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290 """ |
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291 content = self._get_content() |
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292 |
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293 if bool(content and '\0' in content): |
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294 return content |
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295 return safe_unicode(content) |
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296 |
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297 @LazyProperty |
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298 def size(self): |
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299 if self.changeset: |
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300 return self.changeset.get_file_size(self.path) |
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301 raise NodeError("Cannot retrieve size of the file without related " |
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302 "changeset attribute") |
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303 |
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304 @LazyProperty |
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305 def message(self): |
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306 if self.changeset: |
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307 return self.last_changeset.message |
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308 raise NodeError("Cannot retrieve message of the file without related " |
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309 "changeset attribute") |
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310 |
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311 @LazyProperty |
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312 def last_changeset(self): |
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313 if self.changeset: |
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314 return self.changeset.get_file_changeset(self.path) |
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315 raise NodeError("Cannot retrieve last changeset of the file without " |
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316 "related changeset attribute") |
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317 |
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318 def get_mimetype(self): |
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319 """ |
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320 Mimetype is calculated based on the file's content. If ``_mimetype`` |
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321 attribute is available, it will be returned (backends which store |
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322 mimetypes or can easily recognize them, should set this private |
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323 attribute to indicate that type should *NOT* be calculated). |
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324 """ |
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325 if hasattr(self, '_mimetype'): |
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326 if (isinstance(self._mimetype, (tuple, list,)) and |
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327 len(self._mimetype) == 2): |
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328 return self._mimetype |
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329 else: |
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330 raise NodeError('given _mimetype attribute must be an 2 ' |
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331 'element list or tuple') |
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332 |
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333 mtype, encoding = mimetypes.guess_type(self.name) |
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334 |
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335 if mtype is None: |
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336 if self.is_binary: |
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337 mtype = 'application/octet-stream' |
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338 encoding = None |
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339 else: |
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340 mtype = 'text/plain' |
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341 encoding = None |
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342 return mtype, encoding |
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343 |
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344 @LazyProperty |
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345 def mimetype(self): |
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346 """ |
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347 Wrapper around full mimetype info. It returns only type of fetched |
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348 mimetype without the encoding part. use get_mimetype function to fetch |
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349 full set of (type,encoding) |
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350 """ |
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351 return self.get_mimetype()[0] |
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352 |
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353 @LazyProperty |
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354 def mimetype_main(self): |
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355 return self.mimetype.split('/')[0] |
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356 |
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357 @LazyProperty |
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358 def lexer(self): |
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359 """ |
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360 Returns pygment's lexer class. Would try to guess lexer taking file's |
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361 content, name and mimetype. |
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362 """ |
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363 |
2007
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364 try: |
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365 lexer = lexers.guess_lexer_for_filename(self.name, self.content, stripnl=False) |
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366 except lexers.ClassNotFound: |
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367 lexer = lexers.TextLexer(stripnl=False) |
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368 # returns first alias |
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369 return lexer |
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370 |
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371 @LazyProperty |
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372 def lexer_alias(self): |
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373 """ |
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374 Returns first alias of the lexer guessed for this file. |
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375 """ |
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376 return self.lexer.aliases[0] |
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377 |
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378 @LazyProperty |
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379 def history(self): |
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380 """ |
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381 Returns a list of changeset for this file in which the file was changed |
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382 """ |
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383 if self.changeset is None: |
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384 raise NodeError('Unable to get changeset for this FileNode') |
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385 return self.changeset.get_file_history(self.path) |
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386 |
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387 @LazyProperty |
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388 def annotate(self): |
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389 """ |
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390 Returns a list of three element tuples with lineno,changeset and line |
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391 """ |
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392 if self.changeset is None: |
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393 raise NodeError('Unable to get changeset for this FileNode') |
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394 return self.changeset.get_file_annotate(self.path) |
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395 |
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396 @LazyProperty |
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397 def state(self): |
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398 if not self.changeset: |
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399 raise NodeError("Cannot check state of the node if it's not " |
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400 "linked with changeset") |
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401 elif self.path in (node.path for node in self.changeset.added): |
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402 return NodeState.ADDED |
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403 elif self.path in (node.path for node in self.changeset.changed): |
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404 return NodeState.CHANGED |
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405 else: |
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406 return NodeState.NOT_CHANGED |
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407 |
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408 @property |
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409 def is_binary(self): |
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410 """ |
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411 Returns True if file has binary content. |
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412 """ |
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413 _bin = '\0' in self._get_content() |
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414 return _bin |
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415 |
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416 @LazyProperty |
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417 def extension(self): |
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418 """Returns filenode extension""" |
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419 return self.name.split('.')[-1] |
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420 |
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421 def is_executable(self): |
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422 """ |
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423 Returns ``True`` if file has executable flag turned on. |
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424 """ |
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425 return bool(self.mode & stat.S_IXUSR) |
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426 |
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427 def __repr__(self): |
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428 return '<%s %r @ %s>' % (self.__class__.__name__, self.path, |
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429 getattr(self.changeset, 'short_id', '')) |
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430 |
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431 |
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432 class RemovedFileNode(FileNode): |
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433 """ |
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434 Dummy FileNode class - trying to access any public attribute except path, |
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435 name, kind or state (or methods/attributes checking those two) would raise |
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436 RemovedFileNodeError. |
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437 """ |
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438 ALLOWED_ATTRIBUTES = [ |
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439 'name', 'path', 'state', 'is_root', 'is_file', 'is_dir', 'kind', |
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440 'added', 'changed', 'not_changed', 'removed' |
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441 ] |
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442 |
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443 def __init__(self, path): |
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444 """ |
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445 :param path: relative path to the node |
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446 """ |
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447 super(RemovedFileNode, self).__init__(path=path) |
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448 |
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449 def __getattribute__(self, attr): |
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450 if attr.startswith('_') or attr in RemovedFileNode.ALLOWED_ATTRIBUTES: |
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451 return super(RemovedFileNode, self).__getattribute__(attr) |
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452 raise RemovedFileNodeError("Cannot access attribute %s on " |
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453 "RemovedFileNode" % attr) |
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454 |
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455 @LazyProperty |
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456 def state(self): |
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457 return NodeState.REMOVED |
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458 |
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459 |
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460 class DirNode(Node): |
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461 """ |
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462 DirNode stores list of files and directories within this node. |
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463 Nodes may be used standalone but within repository context they |
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464 lazily fetch data within same repositorty's changeset. |
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465 """ |
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466 |
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467 def __init__(self, path, nodes=(), changeset=None): |
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468 """ |
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469 Only one of ``nodes`` and ``changeset`` may be given. Passing both |
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470 would raise ``NodeError`` exception. |
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471 |
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472 :param path: relative path to the node |
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473 :param nodes: content may be passed to constructor |
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474 :param changeset: if given, will use it to lazily fetch content |
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475 :param size: always 0 for ``DirNode`` |
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476 """ |
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477 if nodes and changeset: |
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478 raise NodeError("Cannot use both nodes and changeset") |
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479 super(DirNode, self).__init__(path, NodeKind.DIR) |
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480 self.changeset = changeset |
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481 self._nodes = nodes |
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482 |
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483 @LazyProperty |
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484 def content(self): |
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485 raise NodeError("%s represents a dir and has no ``content`` attribute" |
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486 % self) |
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487 |
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488 @LazyProperty |
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489 def nodes(self): |
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490 if self.changeset: |
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491 nodes = self.changeset.get_nodes(self.path) |
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492 else: |
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493 nodes = self._nodes |
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494 self._nodes_dict = dict((node.path, node) for node in nodes) |
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495 return sorted(nodes) |
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496 |
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497 @LazyProperty |
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498 def files(self): |
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499 return sorted((node for node in self.nodes if node.is_file())) |
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500 |
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501 @LazyProperty |
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502 def dirs(self): |
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503 return sorted((node for node in self.nodes if node.is_dir())) |
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504 |
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505 def __iter__(self): |
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506 for node in self.nodes: |
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507 yield node |
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508 |
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509 def get_node(self, path): |
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510 """ |
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511 Returns node from within this particular ``DirNode``, so it is now |
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512 allowed to fetch, i.e. node located at 'docs/api/index.rst' from node |
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513 'docs'. In order to access deeper nodes one must fetch nodes between |
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514 them first - this would work:: |
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515 |
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516 docs = root.get_node('docs') |
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517 docs.get_node('api').get_node('index.rst') |
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518 |
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519 :param: path - relative to the current node |
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520 |
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521 .. note:: |
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522 To access lazily (as in example above) node have to be initialized |
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523 with related changeset object - without it node is out of |
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524 context and may know nothing about anything else than nearest |
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525 (located at same level) nodes. |
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526 """ |
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527 try: |
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528 path = path.rstrip('/') |
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529 if path == '': |
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530 raise NodeError("Cannot retrieve node without path") |
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531 self.nodes # access nodes first in order to set _nodes_dict |
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532 paths = path.split('/') |
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533 if len(paths) == 1: |
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534 if not self.is_root(): |
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535 path = '/'.join((self.path, paths[0])) |
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536 else: |
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537 path = paths[0] |
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538 return self._nodes_dict[path] |
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539 elif len(paths) > 1: |
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540 if self.changeset is None: |
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541 raise NodeError("Cannot access deeper " |
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542 "nodes without changeset") |
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543 else: |
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544 path1, path2 = paths[0], '/'.join(paths[1:]) |
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545 return self.get_node(path1).get_node(path2) |
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546 else: |
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547 raise KeyError |
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548 except KeyError: |
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549 raise NodeError("Node does not exist at %s" % path) |
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550 |
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551 @LazyProperty |
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552 def state(self): |
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553 raise NodeError("Cannot access state of DirNode") |
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554 |
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555 @LazyProperty |
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556 def size(self): |
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557 size = 0 |
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558 for root, dirs, files in self.changeset.walk(self.path): |
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559 for f in files: |
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560 size += f.size |
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561 |
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562 return size |
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563 |
2084
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564 def __repr__(self): |
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diff
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565 return '<%s %r @ %s>' % (self.__class__.__name__, self.path, |
2451
402a96fcfa22
Added vcs testsuite for better integration tests + added fetching
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diff
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|
566 getattr(self.changeset, 'short_id', '')) |
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567 |
2007
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568 |
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569 class RootNode(DirNode): |
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570 """ |
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571 DirNode being the root node of the repository. |
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572 """ |
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573 |
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574 def __init__(self, nodes=(), changeset=None): |
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575 super(RootNode, self).__init__(path='', nodes=nodes, |
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|
576 changeset=changeset) |
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577 |
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|
578 def __repr__(self): |
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579 return '<%s>' % self.__class__.__name__ |
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580 |
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581 |
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582 class SubModuleNode(Node): |
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583 """ |
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584 represents a SubModule of Git or SubRepo of Mercurial |
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585 """ |
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586 is_binary = False |
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587 size = 0 |
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588 |
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589 def __init__(self, name, url=None, changeset=None, alias=None): |
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590 self.path = name |
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591 self.kind = NodeKind.SUBMODULE |
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592 self.alias = alias |
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593 # we have to use emptyChangeset here since this can point to svn/git/hg |
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594 # submodules we cannot get from repository |
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595 self.changeset = EmptyChangeset(str(changeset), alias=alias) |
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596 self.url = url or self._extract_submodule_url() |
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597 |
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598 def __repr__(self): |
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599 return '<%s %r @ %s>' % (self.__class__.__name__, self.path, |
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600 getattr(self.changeset, 'short_id', '')) |
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601 |
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602 def _extract_submodule_url(self): |
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603 if self.alias == 'git': |
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604 #TODO: find a way to parse gits submodule file and extract the |
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605 # linking URL |
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606 return self.path |
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607 if self.alias == 'hg': |
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608 return self.path |
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609 |
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610 @LazyProperty |
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611 def name(self): |
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612 """ |
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613 Returns name of the node so if its path |
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614 then only last part is returned. |
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615 """ |
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616 org = safe_unicode(self.path.rstrip('/').split('/')[-1]) |
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617 return u'%s @ %s' % (org, self.changeset.short_id) |