Mercurial > hg
annotate hgext/convert/bzr.py @ 47406:3237ed4dcda4
rhg: split non_repo_config and `--config` loading in different functions
This will help us in better handling of error caused when trying to
load `--config` values.
Differential Revision: https://phab.mercurial-scm.org/D10837
author | Pulkit Goyal <7895pulkit@gmail.com> |
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date | Mon, 07 Jun 2021 17:19:46 +0530 |
parents | 26127236b229 |
children | 3b2d080f11b5 |
rev | line source |
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1 # bzr.py - bzr support for the convert extension |
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2 # |
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3 # Copyright 2008, 2009 Marek Kubica <marek@xivilization.net> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 # This module is for handling Breezy imports or `brz`, but it's also compatible |
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9 # with Bazaar or `bzr`, that was formerly known as Bazaar-NG; |
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10 # it cannot access `bar` repositories, but they were never used very much. |
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11 from __future__ import absolute_import |
7053 | 12 |
13 import os | |
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14 |
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15 from mercurial.i18n import _ |
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16 from mercurial import ( |
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17 demandimport, |
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18 error, |
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19 pycompat, |
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20 ) |
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21 from . import common |
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22 |
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23 |
7053 | 24 # these do not work with demandimport, blacklist |
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25 demandimport.IGNORES.update( |
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26 [ |
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27 b'breezy.transactions', |
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28 b'breezy.urlutils', |
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29 b'ElementPath', |
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30 ] |
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31 ) |
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33 try: | |
34 # bazaar imports | |
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35 import breezy.bzr.bzrdir |
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36 import breezy.errors |
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37 import breezy.revision |
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38 import breezy.revisionspec |
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39 |
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40 bzrdir = breezy.bzr.bzrdir |
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41 errors = breezy.errors |
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42 revision = breezy.revision |
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43 revisionspec = breezy.revisionspec |
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44 revisionspec.RevisionSpec |
7053 | 45 except ImportError: |
46 pass | |
47 | |
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48 supportedkinds = ('file', 'symlink') |
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49 |
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50 |
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51 class bzr_source(common.converter_source): |
7053 | 52 """Reads Bazaar repositories by using the Bazaar Python libraries""" |
53 | |
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54 def __init__(self, ui, repotype, path, revs=None): |
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55 super(bzr_source, self).__init__(ui, repotype, path, revs=revs) |
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57 if not os.path.exists(os.path.join(path, b'.bzr')): |
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58 raise common.NoRepo( |
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59 _(b'%s does not look like a Bazaar repository') % path |
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60 ) |
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61 |
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63 # access breezy stuff |
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64 bzrdir |
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66 raise common.NoRepo(_(b'Bazaar modules could not be loaded')) |
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68 path = os.path.abspath(path) | |
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69 self._checkrepotype(path) |
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70 try: |
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71 bzr_dir = bzrdir.BzrDir.open(path.decode()) |
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72 self.sourcerepo = bzr_dir.open_repository() |
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73 except errors.NoRepositoryPresent: |
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74 raise common.NoRepo( |
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75 _(b'%s does not look like a Bazaar repository') % path |
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76 ) |
7053 | 77 self._parentids = {} |
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78 self._saverev = ui.configbool(b'convert', b'bzr.saverev') |
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80 def _checkrepotype(self, path): |
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81 # Lightweight checkouts detection is informational but probably |
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82 # fragile at API level. It should not terminate the conversion. |
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83 try: |
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84 dir = bzrdir.BzrDir.open_containing(path.decode())[0] |
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85 try: |
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86 tree = dir.open_workingtree(recommend_upgrade=False) |
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87 branch = tree.branch |
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88 except (errors.NoWorkingTree, errors.NotLocalUrl): |
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89 tree = None |
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90 branch = dir.open_branch() |
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91 if ( |
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92 tree is not None |
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93 and tree.controldir.root_transport.base |
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94 != branch.controldir.root_transport.base |
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95 ): |
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96 self.ui.warn( |
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97 _( |
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98 b'warning: lightweight checkouts may cause ' |
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99 b'conversion failures, try with a regular ' |
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100 b'branch instead.\n' |
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101 ) |
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102 ) |
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103 except Exception: |
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104 self.ui.note(_(b'bzr source type could not be determined\n')) |
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105 |
7053 | 106 def before(self): |
107 """Before the conversion begins, acquire a read lock | |
108 for all the operations that might need it. Fortunately | |
109 read locks don't block other reads or writes to the | |
110 repository, so this shouldn't have any impact on the usage of | |
111 the source repository. | |
112 | |
113 The alternative would be locking on every operation that | |
114 needs locks (there are currently two: getting the file and | |
115 getting the parent map) and releasing immediately after, | |
116 but this approach can take even 40% longer.""" | |
117 self.sourcerepo.lock_read() | |
118 | |
119 def after(self): | |
120 self.sourcerepo.unlock() | |
121 | |
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122 def _bzrbranches(self): |
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123 return self.sourcerepo.find_branches(using=True) |
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124 |
7053 | 125 def getheads(self): |
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126 if not self.revs: |
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127 # Set using=True to avoid nested repositories (see issue3254) |
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128 heads = sorted([b.last_revision() for b in self._bzrbranches()]) |
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129 else: |
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130 revid = None |
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131 for branch in self._bzrbranches(): |
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132 try: |
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133 revspec = self.revs[0].decode() |
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134 r = revisionspec.RevisionSpec.from_string(revspec) |
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135 info = r.in_history(branch) |
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136 except errors.BzrError: |
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137 pass |
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138 revid = info.rev_id |
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139 if revid is None: |
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140 raise error.Abort( |
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141 _(b'%s is not a valid revision') % self.revs[0] |
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142 ) |
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143 heads = [revid] |
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144 # Empty repositories return 'null:', which cannot be retrieved |
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145 heads = [h for h in heads if h != b'null:'] |
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146 return heads |
7053 | 147 |
148 def getfile(self, name, rev): | |
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149 name = name.decode() |
7053 | 150 revtree = self.sourcerepo.revision_tree(rev) |
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151 |
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152 try: |
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153 kind = revtree.kind(name) |
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154 except breezy.errors.NoSuchFile: |
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155 return None, None |
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156 if kind not in supportedkinds: |
7053 | 157 # the file is not available anymore - was deleted |
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158 return None, None |
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159 mode = self._modecache[(name.encode(), rev)] |
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160 if kind == 'symlink': |
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161 target = revtree.get_symlink_target(name) |
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162 if target is None: |
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163 raise error.Abort( |
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164 _(b'%s.%s symlink has no target') % (name, rev) |
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165 ) |
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166 return target.encode(), mode |
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167 else: |
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168 sio = revtree.get_file(name) |
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169 return sio.read(), mode |
7053 | 170 |
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171 def getchanges(self, version, full): |
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172 if full: |
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173 raise error.Abort(_(b"convert from cvs does not support --full")) |
7053 | 174 self._modecache = {} |
175 self._revtree = self.sourcerepo.revision_tree(version) | |
176 # get the parentids from the cache | |
177 parentids = self._parentids.pop(version) | |
178 # only diff against first parent id | |
179 prevtree = self.sourcerepo.revision_tree(parentids[0]) | |
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180 files, changes = self._gettreechanges(self._revtree, prevtree) |
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181 return files, changes, set() |
7053 | 182 |
183 def getcommit(self, version): | |
184 rev = self.sourcerepo.get_revision(version) | |
185 # populate parent id cache | |
186 if not rev.parent_ids: | |
187 parents = [] | |
188 self._parentids[version] = (revision.NULL_REVISION,) | |
189 else: | |
190 parents = self._filterghosts(rev.parent_ids) | |
191 self._parentids[version] = parents | |
192 | |
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193 branch = rev.properties.get('branch-nick', 'default') |
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194 if branch == 'trunk': |
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195 branch = 'default' |
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196 return common.commit( |
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197 parents=parents, |
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198 date=b'%d %d' % (rev.timestamp, -rev.timezone), |
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199 author=self.recode(rev.committer), |
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200 desc=self.recode(rev.message), |
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201 branch=branch.encode('utf8'), |
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202 rev=version, |
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203 saverev=self._saverev, |
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204 ) |
7053 | 205 |
206 def gettags(self): | |
207 bytetags = {} | |
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208 for branch in self._bzrbranches(): |
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209 if not branch.supports_tags(): |
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210 return {} |
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211 tagdict = branch.tags.get_tag_dict() |
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212 for name, rev in pycompat.iteritems(tagdict): |
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213 bytetags[self.recode(name)] = rev |
7053 | 214 return bytetags |
215 | |
216 def getchangedfiles(self, rev, i): | |
217 self._modecache = {} | |
218 curtree = self.sourcerepo.revision_tree(rev) | |
219 if i is not None: | |
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220 parentid = self._parentids[rev][i] |
7053 | 221 else: |
222 # no parent id, get the empty revision | |
223 parentid = revision.NULL_REVISION | |
224 | |
225 prevtree = self.sourcerepo.revision_tree(parentid) | |
226 changes = [e[0] for e in self._gettreechanges(curtree, prevtree)[0]] | |
227 return changes | |
228 | |
229 def _gettreechanges(self, current, origin): | |
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230 revid = current._revision_id |
7053 | 231 changes = [] |
232 renames = {} | |
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233 seen = set() |
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234 |
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235 # Fall back to the deprecated attribute for legacy installations. |
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236 try: |
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237 inventory = origin.root_inventory |
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238 except AttributeError: |
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239 inventory = origin.inventory |
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240 |
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241 # Process the entries by reverse lexicographic name order to |
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242 # handle nested renames correctly, most specific first. |
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243 |
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244 def key(c): |
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245 return c.path[0] or c.path[1] or "" |
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246 |
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247 curchanges = sorted( |
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248 current.iter_changes(origin), |
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249 key=key, |
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250 reverse=True, |
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251 ) |
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252 for change in curchanges: |
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253 paths = change.path |
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254 kind = change.kind |
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255 executable = change.executable |
7053 | 256 if paths[0] == u'' or paths[1] == u'': |
257 # ignore changes to tree root | |
258 continue | |
259 | |
260 # bazaar tracks directories, mercurial does not, so | |
261 # we have to rename the directory contents | |
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262 if kind[1] == 'directory': |
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263 if kind[0] not in (None, 'directory'): |
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264 # Replacing 'something' with a directory, record it |
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265 # so it can be removed. |
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266 changes.append((self.recode(paths[0]), revid)) |
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267 |
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268 if kind[0] == 'directory' and None not in paths: |
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269 renaming = paths[0] != paths[1] |
7053 | 270 # neither an add nor an delete - a move |
271 # rename all directory contents manually | |
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272 subdir = inventory.path2id(paths[0]) |
7053 | 273 # get all child-entries of the directory |
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274 for name, entry in inventory.iter_entries(subdir): |
7053 | 275 # hg does not track directory renames |
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276 if entry.kind == 'directory': |
7053 | 277 continue |
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278 frompath = self.recode(paths[0] + '/' + name) |
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279 if frompath in seen: |
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280 # Already handled by a more specific change entry |
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281 # This is important when you have: |
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282 # a => b |
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283 # a/c => a/c |
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284 # Here a/c must not be renamed into b/c |
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285 continue |
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286 seen.add(frompath) |
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287 if not renaming: |
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288 continue |
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289 topath = self.recode(paths[1] + '/' + name) |
7053 | 290 # register the files as changed |
291 changes.append((frompath, revid)) | |
292 changes.append((topath, revid)) | |
293 # add to mode cache | |
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294 mode = ( |
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295 (entry.executable and b'x') |
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296 or (entry.kind == 'symlink' and b's') |
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formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
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297 or b'' |
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Augie Fackler <augie@google.com>
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298 ) |
7053 | 299 self._modecache[(topath, revid)] = mode |
300 # register the change as move | |
301 renames[topath] = frompath | |
302 | |
17424
e7cfe3587ea4
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Mads Kiilerich <mads@kiilerich.com>
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303 # no further changes, go to the next change |
7053 | 304 continue |
305 | |
306 # we got unicode paths, need to convert them | |
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convert/bzr: expect unicode metadata, encode in UTF-8 (issue3232)
Patrick Mezard <pmezard@gmail.com>
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307 path, topath = paths |
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Patrick Mezard <pmezard@gmail.com>
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308 if path is not None: |
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Patrick Mezard <pmezard@gmail.com>
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309 path = self.recode(path) |
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Patrick Mezard <pmezard@gmail.com>
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310 if topath is not None: |
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Patrick Mezard <pmezard@gmail.com>
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311 topath = self.recode(topath) |
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convert/bzr: correctly handle divergent nested renames (issue3089)
Patrick Mezard <pmezard@gmail.com>
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312 seen.add(path or topath) |
7053 | 313 |
314 if topath is None: | |
315 # file deleted | |
316 changes.append((path, revid)) | |
317 continue | |
318 | |
319 # renamed | |
320 if path and path != topath: | |
321 renames[topath] = path | |
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convert: remove renamed source files (issue1505)
Xavier ALT <dex@phoenix-ind.net>
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7060
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322 changes.append((path, revid)) |
7053 | 323 |
324 # populate the mode cache | |
325 kind, executable = [e[1] for e in (kind, executable)] | |
47377
26127236b229
convert-bazaar: use breezy package instead of old bzr one
Raphaël Gomès <rgomes@octobus.net>
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45942
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326 mode = (executable and b'x') or (kind == 'symlink' and b'l') or b'' |
7053 | 327 self._modecache[(topath, revid)] = mode |
328 changes.append((topath, revid)) | |
329 | |
330 return changes, renames | |
331 | |
332 def _filterghosts(self, ids): | |
333 """Filters out ghost revisions which hg does not support, see | |
334 <http://bazaar-vcs.org/GhostRevision> | |
335 """ | |
336 parentmap = self.sourcerepo.get_parent_map(ids) | |
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972cce34f345
convert: fixed python2.3 incompatibility in bzr source (generator expression)
Dirkjan Ochtman <dirkjan@ochtman.nl>
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337 parents = tuple([parent for parent in ids if parent in parentmap]) |
7053 | 338 return parents |