Mercurial > kallithea

annotate rhodecode/lib/vcs/backends/hg/changeset.py @ 3496:58905069da21 beta

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Speed up of last_changeset extraction in VCS, in edge cases for git we can get 10x speed improvement by limiting the history extraction if we only need last changeset
author Marcin Kuzminski <marcin@python-works.com>
date Thu, 07 Mar 2013 13:46:24 +0100
parents 0065f7fe60f6
children ca7785fae354
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2007
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1 import os
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2 import posixpath
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3
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4 from rhodecode.lib.vcs.backends.base import BaseChangeset
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5 from rhodecode.lib.vcs.conf import settings
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6 from rhodecode.lib.vcs.exceptions import ChangesetDoesNotExistError, \
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7 ChangesetError, ImproperArchiveTypeError, NodeDoesNotExistError, VCSError
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8 from rhodecode.lib.vcs.nodes import AddedFileNodesGenerator, \
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9 ChangedFileNodesGenerator, DirNode, FileNode, NodeKind, \
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10 RemovedFileNodesGenerator, RootNode, SubModuleNode
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11
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12 from rhodecode.lib.vcs.utils import safe_str, safe_unicode, date_fromtimestamp
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13 from rhodecode.lib.vcs.utils.lazy import LazyProperty
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14 from rhodecode.lib.vcs.utils.paths import get_dirs_for_path
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15 from rhodecode.lib.vcs.utils.hgcompat import archival, hex
2007
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16
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17
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18 class MercurialChangeset(BaseChangeset):
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19 """
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20 Represents state of the repository at the single revision.
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21 """
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22
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23 def __init__(self, repository, revision):
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24 self.repository = repository
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25 self.raw_id = revision
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26 self._ctx = repository._repo[revision]
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27 self.revision = self._ctx._rev
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28 self.nodes = {}
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29
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30 @LazyProperty
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31 def tags(self):
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32 return map(safe_unicode, self._ctx.tags())
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33
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34 @LazyProperty
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35 def branch(self):
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36 return safe_unicode(self._ctx.branch())
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37
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38 @LazyProperty
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39 def bookmarks(self):
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40 return map(safe_unicode, self._ctx.bookmarks())
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41
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42 @LazyProperty
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43 def message(self):
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44 return safe_unicode(self._ctx.description())
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45
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46 @LazyProperty
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47 def committer(self):
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48 return safe_unicode(self.author)
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49
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50 @LazyProperty
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51 def author(self):
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52 return safe_unicode(self._ctx.user())
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53
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54 @LazyProperty
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55 def date(self):
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56 return date_fromtimestamp(*self._ctx.date())
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57
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58 @LazyProperty
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59 def _timestamp(self):
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60 return self._ctx.date()[0]
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61
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62 @LazyProperty
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63 def status(self):
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64 """
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65 Returns modified, added, removed, deleted files for current changeset
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66 """
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67 return self.repository._repo.status(self._ctx.p1().node(),
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68 self._ctx.node())
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69
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70 @LazyProperty
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71 def _file_paths(self):
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72 return list(self._ctx)
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73
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74 @LazyProperty
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75 def _dir_paths(self):
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76 p = list(set(get_dirs_for_path(*self._file_paths)))
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77 p.insert(0, '')
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78 return p
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79
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80 @LazyProperty
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81 def _paths(self):
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82 return self._dir_paths + self._file_paths
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83
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84 @LazyProperty
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85 def id(self):
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86 if self.last:
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87 return u'tip'
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88 return self.short_id
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89
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90 @LazyProperty
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91 def short_id(self):
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92 return self.raw_id[:12]
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93
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94 @LazyProperty
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95 def parents(self):
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96 """
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97 Returns list of parents changesets.
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98 """
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99 return [self.repository.get_changeset(parent.rev())
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100 for parent in self._ctx.parents() if parent.rev() >= 0]
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101
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102 @LazyProperty
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103 def children(self):
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104 """
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105 Returns list of children changesets.
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106 """
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107 return [self.repository.get_changeset(child.rev())
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108 for child in self._ctx.children() if child.rev() >= 0]
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109
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110 def next(self, branch=None):
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111
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112 if branch and self.branch != branch:
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113 raise VCSError('Branch option used on changeset not belonging '
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114 'to that branch')
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115
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116 def _next(changeset, branch):
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117 try:
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118 next_ = changeset.revision + 1
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119 next_rev = changeset.repository.revisions[next_]
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120 except IndexError:
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121 raise ChangesetDoesNotExistError
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122 cs = changeset.repository.get_changeset(next_rev)
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123
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124 if branch and branch != cs.branch:
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125 return _next(cs, branch)
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126
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127 return cs
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128
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129 return _next(self, branch)
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130
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131 def prev(self, branch=None):
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132 if branch and self.branch != branch:
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133 raise VCSError('Branch option used on changeset not belonging '
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134 'to that branch')
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135
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136 def _prev(changeset, branch):
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137 try:
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138 prev_ = changeset.revision - 1
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139 if prev_ < 0:
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140 raise IndexError
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141 prev_rev = changeset.repository.revisions[prev_]
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142 except IndexError:
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143 raise ChangesetDoesNotExistError
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144
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145 cs = changeset.repository.get_changeset(prev_rev)
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146
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147 if branch and branch != cs.branch:
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148 return _prev(cs, branch)
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149
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150 return cs
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151
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152 return _prev(self, branch)
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153
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154 def diff(self, ignore_whitespace=True, context=3):
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155 return ''.join(self._ctx.diff(git=True,
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156 ignore_whitespace=ignore_whitespace,
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157 context=context))
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158
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159 def _fix_path(self, path):
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160 """
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161 Paths are stored without trailing slash so we need to get rid off it if
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162 needed. Also mercurial keeps filenodes as str so we need to decode
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163 from unicode to str
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164 """
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165 if path.endswith('/'):
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166 path = path.rstrip('/')
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167
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168 return safe_str(path)
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169
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170 def _get_kind(self, path):
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171 path = self._fix_path(path)
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172 if path in self._file_paths:
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173 return NodeKind.FILE
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174 elif path in self._dir_paths:
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175 return NodeKind.DIR
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176 else:
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177 raise ChangesetError("Node does not exist at the given path %r"
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178 % (path))
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179
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180 def _get_filectx(self, path):
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181 path = self._fix_path(path)
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182 if self._get_kind(path) != NodeKind.FILE:
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183 raise ChangesetError("File does not exist for revision %r at "
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184 " %r" % (self.raw_id, path))
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185 return self._ctx.filectx(path)
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186
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187 def _extract_submodules(self):
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188 """
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189 returns a dictionary with submodule information from substate file
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190 of hg repository
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191 """
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192 return self._ctx.substate
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193
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194 def get_file_mode(self, path):
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195 """
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196 Returns stat mode of the file at the given ``path``.
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197 """
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198 fctx = self._get_filectx(path)
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199 if 'x' in fctx.flags():
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200 return 0100755
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201 else:
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202 return 0100644
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203
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204 def get_file_content(self, path):
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205 """
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206 Returns content of the file at given ``path``.
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207 """
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208 fctx = self._get_filectx(path)
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209 return fctx.data()
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210
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211 def get_file_size(self, path):
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212 """
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213 Returns size of the file at given ``path``.
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214 """
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215 fctx = self._get_filectx(path)
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216 return fctx.size()
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217
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218 def get_file_changeset(self, path):
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219 """
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220 Returns last commit of the file at the given ``path``.
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221 """
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222 return self.get_file_history(path, limit=1)[0]
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223
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224 def get_file_history(self, path, limit=None):
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225 """
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226 Returns history of file as reversed list of ``Changeset`` objects for
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227 which file at given ``path`` has been modified.
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228 """
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229 fctx = self._get_filectx(path)
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230 hist = []
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231 cnt = 0
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232 for cs in reversed([x for x in fctx.filelog()]):
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233 cnt += 1
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234 hist.append(hex(fctx.filectx(cs).node()))
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235 if limit and cnt == limit:
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236 break
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237
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238 return [self.repository.get_changeset(node) for node in hist]
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239
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240 def get_file_annotate(self, path):
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241 """
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242 Returns a generator of four element tuples with
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243 lineno, sha, changeset lazy loader and line
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244 """
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245
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246 fctx = self._get_filectx(path)
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247 for i, annotate_data in enumerate(fctx.annotate()):
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248 ln_no = i + 1
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249 sha = hex(annotate_data[0].node())
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250 yield (ln_no, sha, lambda: self.repository.get_changeset(sha), annotate_data[1],)
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251
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252 def fill_archive(self, stream=None, kind='tgz', prefix=None,
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253 subrepos=False):
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254 """
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255 Fills up given stream.
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256
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257 :param stream: file like object.
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258 :param kind: one of following: ``zip``, ``tgz`` or ``tbz2``.
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259 Default: ``tgz``.
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260 :param prefix: name of root directory in archive.
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261 Default is repository name and changeset's raw_id joined with dash
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262 (``repo-tip.<KIND>``).
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263 :param subrepos: include subrepos in this archive.
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264
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265 :raise ImproperArchiveTypeError: If given kind is wrong.
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266 :raise VcsError: If given stream is None
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267 """
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268
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269 allowed_kinds = settings.ARCHIVE_SPECS.keys()
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270 if kind not in allowed_kinds:
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271 raise ImproperArchiveTypeError('Archive kind not supported use one'
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272 'of %s', allowed_kinds)
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273
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274 if stream is None:
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275 raise VCSError('You need to pass in a valid stream for filling'
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276 ' with archival data')
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277
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278 if prefix is None:
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279 prefix = '%s-%s' % (self.repository.name, self.short_id)
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280 elif prefix.startswith('/'):
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281 raise VCSError("Prefix cannot start with leading slash")
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282 elif prefix.strip() == '':
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283 raise VCSError("Prefix cannot be empty")
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284
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285 archival.archive(self.repository._repo, stream, self.raw_id,
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286 kind, prefix=prefix, subrepos=subrepos)
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287
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288 if stream.closed and hasattr(stream, 'name'):
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289 stream = open(stream.name, 'rb')
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290 elif hasattr(stream, 'mode') and 'r' not in stream.mode:
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291 stream = open(stream.name, 'rb')
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292 else:
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293 stream.seek(0)
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294
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295 def get_nodes(self, path):
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296 """
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297 Returns combined ``DirNode`` and ``FileNode`` objects list representing
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298 state of changeset at the given ``path``. If node at the given ``path``
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299 is not instance of ``DirNode``, ChangesetError would be raised.
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300 """
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301
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302 if self._get_kind(path) != NodeKind.DIR:
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303 raise ChangesetError("Directory does not exist for revision %r at "
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304 " %r" % (self.revision, path))
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305 path = self._fix_path(path)
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306
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307 filenodes = [FileNode(f, changeset=self) for f in self._file_paths
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308 if os.path.dirname(f) == path]
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309 dirs = path == '' and '' or [d for d in self._dir_paths
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310 if d and posixpath.dirname(d) == path]
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311 dirnodes = [DirNode(d, changeset=self) for d in dirs
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312 if os.path.dirname(d) == path]
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313
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314 als = self.repository.alias
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315 for k, vals in self._extract_submodules().iteritems():
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316 #vals = url,rev,type
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317 loc = vals[0]
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318 cs = vals[1]
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319 dirnodes.append(SubModuleNode(k, url=loc, changeset=cs,
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320 alias=als))
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321 nodes = dirnodes + filenodes
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322 # cache nodes
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323 for node in nodes:
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324 self.nodes[node.path] = node
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325 nodes.sort()
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326
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327 return nodes
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328
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329 def get_node(self, path):
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330 """
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331 Returns ``Node`` object from the given ``path``. If there is no node at
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332 the given ``path``, ``ChangesetError`` would be raised.
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333 """
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334
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335 path = self._fix_path(path)
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336
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337 if not path in self.nodes:
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338 if path in self._file_paths:
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339 node = FileNode(path, changeset=self)
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340 elif path in self._dir_paths or path in self._dir_paths:
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341 if path == '':
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342 node = RootNode(changeset=self)
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343 else:
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344 node = DirNode(path, changeset=self)
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345 else:
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346 raise NodeDoesNotExistError("There is no file nor directory "
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347 "at the given path: %r at revision %r"
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348 % (path, self.short_id))
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349 # cache node
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350 self.nodes[path] = node
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351 return self.nodes[path]
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352
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353 @LazyProperty
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354 def affected_files(self):
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355 """
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356 Get's a fast accessible file changes for given changeset
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357 """
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358 return self._ctx.files()
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359
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360 @property
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361 def added(self):
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362 """
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363 Returns list of added ``FileNode`` objects.
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364 """
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365 return AddedFileNodesGenerator([n for n in self.status[1]], self)
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366
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367 @property
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368 def changed(self):
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369 """
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370 Returns list of modified ``FileNode`` objects.
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371 """
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372 return ChangedFileNodesGenerator([n for n in self.status[0]], self)
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373
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374 @property
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375 def removed(self):
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376 """
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377 Returns list of removed ``FileNode`` objects.
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378 """
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379 return RemovedFileNodesGenerator([n for n in self.status[2]], self)