Mercurial > hg
annotate hgext/convert/bzr.py @ 19954:427ce5633c1c stable
largefiles: don't prompt for normal/largefile changes when doing plain updates
We used to get like:
$ hg up -r 2
foo has been turned into a normal file
keep as (l)argefile or use (n)ormal file? l
getting changed largefiles
0 largefiles updated, 0 removed
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ cat foo
cat: foo: No such file or directory
[1]
- which both asked the wrong question and did the wrong thing.
Instead, skip this conflict resolution when the local conflicting file has been
scheduled for removal and there thus is no conflict.
author | Mads Kiilerich <madski@unity3d.com> |
---|---|
date | Fri, 25 Oct 2013 02:33:59 +0800 |
parents | e7cfe3587ea4 |
children | 650b5b6e75ed |
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 |
7053 | 8 # This module is for handling 'bzr', that was formerly known as Bazaar-NG; |
9 # it cannot access 'bar' repositories, but they were never used very much | |
10 | |
11 import os | |
12 from mercurial import demandimport | |
13 # these do not work with demandimport, blacklist | |
14 demandimport.ignore.extend([ | |
15 'bzrlib.transactions', | |
16 'bzrlib.urlutils', | |
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17 'ElementPath', |
7053 | 18 ]) |
19 | |
20 from mercurial.i18n import _ | |
21 from mercurial import util | |
22 from common import NoRepo, commit, converter_source | |
23 | |
24 try: | |
25 # bazaar imports | |
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26 from bzrlib import bzrdir, revision, errors |
7053 | 27 from bzrlib.revisionspec import RevisionSpec |
28 except ImportError: | |
29 pass | |
30 | |
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31 supportedkinds = ('file', 'symlink') |
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32 |
7053 | 33 class bzr_source(converter_source): |
34 """Reads Bazaar repositories by using the Bazaar Python libraries""" | |
35 | |
36 def __init__(self, ui, path, rev=None): | |
37 super(bzr_source, self).__init__(ui, path, rev=rev) | |
38 | |
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39 if not os.path.exists(os.path.join(path, '.bzr')): |
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40 raise NoRepo(_('%s does not look like a Bazaar repository') |
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41 % path) |
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42 |
7053 | 43 try: |
44 # access bzrlib stuff | |
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45 bzrdir |
7053 | 46 except NameError: |
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47 raise NoRepo(_('Bazaar modules could not be loaded')) |
7053 | 48 |
49 path = os.path.abspath(path) | |
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50 self._checkrepotype(path) |
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51 try: |
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52 self.sourcerepo = bzrdir.BzrDir.open(path).open_repository() |
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53 except errors.NoRepositoryPresent: |
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54 raise NoRepo(_('%s does not look like a Bazaar repository') |
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55 % path) |
7053 | 56 self._parentids = {} |
57 | |
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58 def _checkrepotype(self, path): |
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59 # Lightweight checkouts detection is informational but probably |
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60 # fragile at API level. It should not terminate the conversion. |
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61 try: |
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62 from bzrlib import bzrdir |
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63 dir = bzrdir.BzrDir.open_containing(path)[0] |
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64 try: |
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65 tree = dir.open_workingtree(recommend_upgrade=False) |
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66 branch = tree.branch |
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67 except (errors.NoWorkingTree, errors.NotLocalUrl): |
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68 tree = None |
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69 branch = dir.open_branch() |
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70 if (tree is not None and tree.bzrdir.root_transport.base != |
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71 branch.bzrdir.root_transport.base): |
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72 self.ui.warn(_('warning: lightweight checkouts may cause ' |
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73 'conversion failures, try with a regular ' |
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74 'branch instead.\n')) |
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75 except Exception: |
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76 self.ui.note(_('bzr source type could not be determined\n')) |
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77 |
7053 | 78 def before(self): |
79 """Before the conversion begins, acquire a read lock | |
80 for all the operations that might need it. Fortunately | |
81 read locks don't block other reads or writes to the | |
82 repository, so this shouldn't have any impact on the usage of | |
83 the source repository. | |
84 | |
85 The alternative would be locking on every operation that | |
86 needs locks (there are currently two: getting the file and | |
87 getting the parent map) and releasing immediately after, | |
88 but this approach can take even 40% longer.""" | |
89 self.sourcerepo.lock_read() | |
90 | |
91 def after(self): | |
92 self.sourcerepo.unlock() | |
93 | |
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94 def _bzrbranches(self): |
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95 return self.sourcerepo.find_branches(using=True) |
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96 |
7053 | 97 def getheads(self): |
98 if not self.rev: | |
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99 # Set using=True to avoid nested repositories (see issue3254) |
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100 heads = sorted([b.last_revision() for b in self._bzrbranches()]) |
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101 else: |
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102 revid = None |
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103 for branch in self._bzrbranches(): |
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104 try: |
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105 r = RevisionSpec.from_string(self.rev) |
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106 info = r.in_history(branch) |
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107 except errors.BzrError: |
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108 pass |
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109 revid = info.rev_id |
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110 if revid is None: |
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111 raise util.Abort(_('%s is not a valid revision') % self.rev) |
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112 heads = [revid] |
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113 # Empty repositories return 'null:', which cannot be retrieved |
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114 heads = [h for h in heads if h != 'null:'] |
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115 return heads |
7053 | 116 |
117 def getfile(self, name, rev): | |
118 revtree = self.sourcerepo.revision_tree(rev) | |
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119 fileid = revtree.path2id(name.decode(self.encoding or 'utf-8')) |
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120 kind = None |
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121 if fileid is not None: |
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122 kind = revtree.kind(fileid) |
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123 if kind not in supportedkinds: |
7053 | 124 # the file is not available anymore - was deleted |
125 raise IOError(_('%s is not available in %s anymore') % | |
126 (name, rev)) | |
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127 mode = self._modecache[(name, rev)] |
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128 if kind == 'symlink': |
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129 target = revtree.get_symlink_target(fileid) |
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130 if target is None: |
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131 raise util.Abort(_('%s.%s symlink has no target') |
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132 % (name, rev)) |
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133 return target, mode |
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134 else: |
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135 sio = revtree.get_file(fileid) |
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136 return sio.read(), mode |
7053 | 137 |
138 def getchanges(self, version): | |
139 # set up caches: modecache and revtree | |
140 self._modecache = {} | |
141 self._revtree = self.sourcerepo.revision_tree(version) | |
142 # get the parentids from the cache | |
143 parentids = self._parentids.pop(version) | |
144 # only diff against first parent id | |
145 prevtree = self.sourcerepo.revision_tree(parentids[0]) | |
146 return self._gettreechanges(self._revtree, prevtree) | |
147 | |
148 def getcommit(self, version): | |
149 rev = self.sourcerepo.get_revision(version) | |
150 # populate parent id cache | |
151 if not rev.parent_ids: | |
152 parents = [] | |
153 self._parentids[version] = (revision.NULL_REVISION,) | |
154 else: | |
155 parents = self._filterghosts(rev.parent_ids) | |
156 self._parentids[version] = parents | |
157 | |
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158 branch = self.recode(rev.properties.get('branch-nick', u'default')) |
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159 if branch == 'trunk': |
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160 branch = 'default' |
7053 | 161 return commit(parents=parents, |
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162 date='%d %d' % (rev.timestamp, -rev.timezone), |
7053 | 163 author=self.recode(rev.committer), |
164 desc=self.recode(rev.message), | |
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165 branch=branch, |
7053 | 166 rev=version) |
167 | |
168 def gettags(self): | |
169 bytetags = {} | |
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170 for branch in self._bzrbranches(): |
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171 if not branch.supports_tags(): |
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172 return {} |
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173 tagdict = branch.tags.get_tag_dict() |
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174 for name, rev in tagdict.iteritems(): |
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175 bytetags[self.recode(name)] = rev |
7053 | 176 return bytetags |
177 | |
178 def getchangedfiles(self, rev, i): | |
179 self._modecache = {} | |
180 curtree = self.sourcerepo.revision_tree(rev) | |
181 if i is not None: | |
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182 parentid = self._parentids[rev][i] |
7053 | 183 else: |
184 # no parent id, get the empty revision | |
185 parentid = revision.NULL_REVISION | |
186 | |
187 prevtree = self.sourcerepo.revision_tree(parentid) | |
188 changes = [e[0] for e in self._gettreechanges(curtree, prevtree)[0]] | |
189 return changes | |
190 | |
191 def _gettreechanges(self, current, origin): | |
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192 revid = current._revision_id |
7053 | 193 changes = [] |
194 renames = {} | |
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195 seen = set() |
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196 # Process the entries by reverse lexicographic name order to |
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197 # handle nested renames correctly, most specific first. |
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198 curchanges = sorted(current.iter_changes(origin), |
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199 key=lambda c: c[1][0] or c[1][1], |
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200 reverse=True) |
7053 | 201 for (fileid, paths, changed_content, versioned, parent, name, |
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202 kind, executable) in curchanges: |
7053 | 203 |
204 if paths[0] == u'' or paths[1] == u'': | |
205 # ignore changes to tree root | |
206 continue | |
207 | |
208 # bazaar tracks directories, mercurial does not, so | |
209 # we have to rename the directory contents | |
210 if kind[1] == 'directory': | |
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211 if kind[0] not in (None, 'directory'): |
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212 # Replacing 'something' with a directory, record it |
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213 # so it can be removed. |
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214 changes.append((self.recode(paths[0]), revid)) |
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215 |
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216 if kind[0] == 'directory' and None not in paths: |
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217 renaming = paths[0] != paths[1] |
7053 | 218 # neither an add nor an delete - a move |
219 # rename all directory contents manually | |
220 subdir = origin.inventory.path2id(paths[0]) | |
221 # get all child-entries of the directory | |
222 for name, entry in origin.inventory.iter_entries(subdir): | |
223 # hg does not track directory renames | |
224 if entry.kind == 'directory': | |
225 continue | |
226 frompath = self.recode(paths[0] + '/' + name) | |
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227 if frompath in seen: |
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228 # Already handled by a more specific change entry |
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229 # This is important when you have: |
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230 # a => b |
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231 # a/c => a/c |
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232 # Here a/c must not be renamed into b/c |
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233 continue |
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234 seen.add(frompath) |
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235 if not renaming: |
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236 continue |
7053 | 237 topath = self.recode(paths[1] + '/' + name) |
238 # register the files as changed | |
239 changes.append((frompath, revid)) | |
240 changes.append((topath, revid)) | |
241 # add to mode cache | |
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242 mode = ((entry.executable and 'x') |
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243 or (entry.kind == 'symlink' and 's') |
7053 | 244 or '') |
245 self._modecache[(topath, revid)] = mode | |
246 # register the change as move | |
247 renames[topath] = frompath | |
248 | |
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249 # no further changes, go to the next change |
7053 | 250 continue |
251 | |
252 # we got unicode paths, need to convert them | |
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253 path, topath = paths |
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254 if path is not None: |
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255 path = self.recode(path) |
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256 if topath is not None: |
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257 topath = self.recode(topath) |
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258 seen.add(path or topath) |
7053 | 259 |
260 if topath is None: | |
261 # file deleted | |
262 changes.append((path, revid)) | |
263 continue | |
264 | |
265 # renamed | |
266 if path and path != topath: | |
267 renames[topath] = path | |
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268 changes.append((path, revid)) |
7053 | 269 |
270 # populate the mode cache | |
271 kind, executable = [e[1] for e in (kind, executable)] | |
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272 mode = ((executable and 'x') or (kind == 'symlink' and 'l') |
7053 | 273 or '') |
274 self._modecache[(topath, revid)] = mode | |
275 changes.append((topath, revid)) | |
276 | |
277 return changes, renames | |
278 | |
279 def _filterghosts(self, ids): | |
280 """Filters out ghost revisions which hg does not support, see | |
281 <http://bazaar-vcs.org/GhostRevision> | |
282 """ | |
283 parentmap = self.sourcerepo.get_parent_map(ids) | |
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284 parents = tuple([parent for parent in ids if parent in parentmap]) |
7053 | 285 return parents |