author | Raphaël Gomès <rgomes@octobus.net> |
Sat, 19 Nov 2022 20:40:47 +0100 | |
changeset 49627 | 7577b8644558 |
parent 49551 | 5f22c92dcf3d |
child 49849 | de9ffb82ef4d |
child 49947 | 43bfddcba7d6 |
permissions | -rw-r--r-- |
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# bzr.py - bzr support for the convert extension |
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# |
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# Copyright 2008, 2009 Marek Kubica <marek@xivilization.net> and others |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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# This module is for handling Breezy imports or `brz`, but it's also compatible |
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# with Bazaar or `bzr`, that was formerly known as Bazaar-NG; |
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# it cannot access `bar` repositories, but they were never used very much. |
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import os |
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from mercurial.i18n import _ |
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from mercurial import ( |
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demandimport, |
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error, |
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util, |
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) |
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from . import common |
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# these do not work with demandimport, blacklist |
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demandimport.IGNORES.update( |
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[ |
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'breezy.transactions', |
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'breezy.urlutils', |
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'ElementPath', |
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] |
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) |
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try: |
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# bazaar imports |
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import breezy.bzr.bzrdir |
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import breezy.errors |
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import breezy.revision |
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import breezy.revisionspec |
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bzrdir = breezy.bzr.bzrdir |
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errors = breezy.errors |
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revision = breezy.revision |
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revisionspec = breezy.revisionspec |
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revisionspec.RevisionSpec |
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except ImportError: |
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pass |
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||
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supportedkinds = ('file', 'symlink') |
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class bzr_source(common.converter_source): |
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"""Reads Bazaar repositories by using the Bazaar Python libraries""" |
52 |
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def __init__(self, ui, repotype, path, revs=None): |
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super(bzr_source, self).__init__(ui, repotype, path, revs=revs) |
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if not os.path.exists(os.path.join(path, b'.bzr')): |
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raise common.NoRepo( |
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_(b'%s does not look like a Bazaar repository') % path |
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) |
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try: |
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# access breezy stuff |
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bzrdir |
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except NameError: |
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raise common.NoRepo(_(b'Bazaar modules could not be loaded')) |
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path = util.abspath(path) |
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self._checkrepotype(path) |
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try: |
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bzr_dir = bzrdir.BzrDir.open(path.decode()) |
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self.sourcerepo = bzr_dir.open_repository() |
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except errors.NoRepositoryPresent: |
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raise common.NoRepo( |
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_(b'%s does not look like a Bazaar repository') % path |
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) |
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self._parentids = {} |
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self._saverev = ui.configbool(b'convert', b'bzr.saverev') |
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def _checkrepotype(self, path): |
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# Lightweight checkouts detection is informational but probably |
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# fragile at API level. It should not terminate the conversion. |
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try: |
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dir = bzrdir.BzrDir.open_containing(path.decode())[0] |
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try: |
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tree = dir.open_workingtree(recommend_upgrade=False) |
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branch = tree.branch |
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except (errors.NoWorkingTree, errors.NotLocalUrl): |
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tree = None |
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branch = dir.open_branch() |
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if ( |
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tree is not None |
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and tree.controldir.root_transport.base |
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!= branch.controldir.root_transport.base |
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): |
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self.ui.warn( |
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_( |
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b'warning: lightweight checkouts may cause ' |
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b'conversion failures, try with a regular ' |
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b'branch instead.\n' |
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) |
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) |
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except Exception: |
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self.ui.note(_(b'bzr source type could not be determined\n')) |
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def before(self): |
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"""Before the conversion begins, acquire a read lock |
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for all the operations that might need it. Fortunately |
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read locks don't block other reads or writes to the |
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repository, so this shouldn't have any impact on the usage of |
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the source repository. |
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||
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The alternative would be locking on every operation that |
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needs locks (there are currently two: getting the file and |
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getting the parent map) and releasing immediately after, |
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but this approach can take even 40% longer.""" |
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self.sourcerepo.lock_read() |
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def after(self): |
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self.sourcerepo.unlock() |
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def _bzrbranches(self): |
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return self.sourcerepo.find_branches(using=True) |
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def getheads(self): |
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if not self.revs: |
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# Set using=True to avoid nested repositories (see issue3254) |
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heads = sorted([b.last_revision() for b in self._bzrbranches()]) |
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else: |
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revid = None |
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for branch in self._bzrbranches(): |
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try: |
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revspec = self.revs[0].decode() |
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r = revisionspec.RevisionSpec.from_string(revspec) |
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134 |
info = r.in_history(branch) |
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135 |
except errors.BzrError: |
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136 |
pass |
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137 |
revid = info.rev_id |
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138 |
if revid is None: |
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139 |
raise error.Abort( |
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140 |
_(b'%s is not a valid revision') % self.revs[0] |
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|
141 |
) |
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142 |
heads = [revid] |
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143 |
# Empty repositories return 'null:', which cannot be retrieved |
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144 |
heads = [h for h in heads if h != b'null:'] |
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145 |
return heads |
7053 | 146 |
|
147 |
def getfile(self, name, rev): |
|
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148 |
name = name.decode() |
7053 | 149 |
revtree = self.sourcerepo.revision_tree(rev) |
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150 |
|
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151 |
try: |
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152 |
kind = revtree.kind(name) |
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153 |
except breezy.errors.NoSuchFile: |
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154 |
return None, None |
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155 |
if kind not in supportedkinds: |
7053 | 156 |
# the file is not available anymore - was deleted |
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|
157 |
return None, None |
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|
158 |
mode = self._modecache[(name.encode(), rev)] |
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159 |
if kind == 'symlink': |
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160 |
target = revtree.get_symlink_target(name) |
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161 |
if target is None: |
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162 |
raise error.Abort( |
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163 |
_(b'%s.%s symlink has no target') % (name, rev) |
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164 |
) |
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|
165 |
return target.encode(), mode |
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166 |
else: |
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167 |
sio = revtree.get_file(name) |
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|
168 |
return sio.read(), mode |
7053 | 169 |
|
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170 |
def getchanges(self, version, full): |
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171 |
if full: |
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172 |
raise error.Abort(_(b"convert from cvs does not support --full")) |
7053 | 173 |
self._modecache = {} |
174 |
self._revtree = self.sourcerepo.revision_tree(version) |
|
175 |
# get the parentids from the cache |
|
176 |
parentids = self._parentids.pop(version) |
|
177 |
# only diff against first parent id |
|
178 |
prevtree = self.sourcerepo.revision_tree(parentids[0]) |
|
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179 |
files, changes = self._gettreechanges(self._revtree, prevtree) |
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180 |
return files, changes, set() |
7053 | 181 |
|
182 |
def getcommit(self, version): |
|
183 |
rev = self.sourcerepo.get_revision(version) |
|
184 |
# populate parent id cache |
|
185 |
if not rev.parent_ids: |
|
186 |
parents = [] |
|
187 |
self._parentids[version] = (revision.NULL_REVISION,) |
|
188 |
else: |
|
189 |
parents = self._filterghosts(rev.parent_ids) |
|
190 |
self._parentids[version] = parents |
|
191 |
||
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192 |
branch = rev.properties.get('branch-nick', 'default') |
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|
193 |
if branch == 'trunk': |
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194 |
branch = 'default' |
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195 |
return common.commit( |
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196 |
parents=parents, |
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197 |
date=b'%d %d' % (rev.timestamp, -rev.timezone), |
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198 |
author=self.recode(rev.committer), |
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199 |
desc=self.recode(rev.message), |
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200 |
branch=branch.encode('utf8'), |
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201 |
rev=version, |
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202 |
saverev=self._saverev, |
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|
203 |
) |
7053 | 204 |
|
205 |
def gettags(self): |
|
206 |
bytetags = {} |
|
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|
207 |
for branch in self._bzrbranches(): |
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208 |
if not branch.supports_tags(): |
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209 |
return {} |
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|
210 |
tagdict = branch.tags.get_tag_dict() |
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|
211 |
for name, rev in tagdict.items(): |
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212 |
bytetags[self.recode(name)] = rev |
7053 | 213 |
return bytetags |
214 |
||
215 |
def getchangedfiles(self, rev, i): |
|
216 |
self._modecache = {} |
|
217 |
curtree = self.sourcerepo.revision_tree(rev) |
|
218 |
if i is not None: |
|
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|
219 |
parentid = self._parentids[rev][i] |
7053 | 220 |
else: |
221 |
# no parent id, get the empty revision |
|
222 |
parentid = revision.NULL_REVISION |
|
223 |
||
224 |
prevtree = self.sourcerepo.revision_tree(parentid) |
|
225 |
changes = [e[0] for e in self._gettreechanges(curtree, prevtree)[0]] |
|
226 |
return changes |
|
227 |
||
228 |
def _gettreechanges(self, current, origin): |
|
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|
229 |
revid = current._revision_id |
7053 | 230 |
changes = [] |
231 |
renames = {} |
|
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232 |
seen = set() |
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|
233 |
|
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|
234 |
# Fall back to the deprecated attribute for legacy installations. |
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|
235 |
try: |
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|
236 |
inventory = origin.root_inventory |
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|
237 |
except AttributeError: |
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|
238 |
inventory = origin.inventory |
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|
239 |
|
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|
240 |
# Process the entries by reverse lexicographic name order to |
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|
241 |
# handle nested renames correctly, most specific first. |
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242 |
|
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|
243 |
def key(c): |
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|
244 |
return c.path[0] or c.path[1] or "" |
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245 |
|
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|
246 |
curchanges = sorted( |
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|
247 |
current.iter_changes(origin), |
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|
248 |
key=key, |
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|
249 |
reverse=True, |
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|
250 |
) |
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|
251 |
for change in curchanges: |
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|
252 |
paths = change.path |
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|
253 |
kind = change.kind |
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|
254 |
executable = change.executable |
7053 | 255 |
if paths[0] == u'' or paths[1] == u'': |
256 |
# ignore changes to tree root |
|
257 |
continue |
|
258 |
||
259 |
# bazaar tracks directories, mercurial does not, so |
|
260 |
# we have to rename the directory contents |
|
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|
261 |
if kind[1] == 'directory': |
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|
262 |
if kind[0] not in (None, 'directory'): |
8126
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parents:
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diff
changeset
|
263 |
# Replacing 'something' with a directory, record it |
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|
264 |
# so it can be removed. |
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|
265 |
changes.append((self.recode(paths[0]), revid)) |
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|
266 |
|
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|
267 |
if kind[0] == 'directory' and None not in paths: |
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|
268 |
renaming = paths[0] != paths[1] |
7053 | 269 |
# neither an add nor an delete - a move |
270 |
# rename all directory contents manually |
|
35198
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changeset
|
271 |
subdir = inventory.path2id(paths[0]) |
7053 | 272 |
# get all child-entries of the directory |
35198
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|
273 |
for name, entry in inventory.iter_entries(subdir): |
7053 | 274 |
# hg does not track directory renames |
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|
275 |
if entry.kind == 'directory': |
7053 | 276 |
continue |
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|
277 |
frompath = self.recode(paths[0] + '/' + name) |
15461
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changeset
|
278 |
if frompath in seen: |
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|
279 |
# Already handled by a more specific change entry |
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280 |
# This is important when you have: |
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# a => b |
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282 |
# a/c => a/c |
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283 |
# Here a/c must not be renamed into b/c |
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284 |
continue |
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285 |
seen.add(frompath) |
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286 |
if not renaming: |
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287 |
continue |
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Raphaël Gomès <rgomes@octobus.net>
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288 |
topath = self.recode(paths[1] + '/' + name) |
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# register the files as changed |
290 |
changes.append((frompath, revid)) |
|
291 |
changes.append((topath, revid)) |
|
292 |
# add to mode cache |
|
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293 |
mode = ( |
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formatting: byteify all mercurial/ and hgext/ string literals
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294 |
(entry.executable and b'x') |
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295 |
or (entry.kind == 'symlink' and b's') |
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296 |
or b'' |
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297 |
) |
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self._modecache[(topath, revid)] = mode |
299 |
# register the change as move |
|
300 |
renames[topath] = frompath |
|
301 |
||
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Mads Kiilerich <mads@kiilerich.com>
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302 |
# no further changes, go to the next change |
7053 | 303 |
continue |
304 |
||
305 |
# we got unicode paths, need to convert them |
|
16059
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convert/bzr: expect unicode metadata, encode in UTF-8 (issue3232)
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306 |
path, topath = paths |
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307 |
if path is not None: |
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308 |
path = self.recode(path) |
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309 |
if topath is not None: |
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|
310 |
topath = self.recode(topath) |
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311 |
seen.add(path or topath) |
7053 | 312 |
|
313 |
if topath is None: |
|
314 |
# file deleted |
|
315 |
changes.append((path, revid)) |
|
316 |
continue |
|
317 |
||
318 |
# renamed |
|
319 |
if path and path != topath: |
|
320 |
renames[topath] = path |
|
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cb77c0fbec39
convert: remove renamed source files (issue1505)
Xavier ALT <dex@phoenix-ind.net>
parents:
7060
diff
changeset
|
321 |
changes.append((path, revid)) |
7053 | 322 |
|
323 |
# populate the mode cache |
|
324 |
kind, executable = [e[1] for e in (kind, executable)] |
|
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parents:
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|
325 |
mode = (executable and b'x') or (kind == 'symlink' and b'l') or b'' |
7053 | 326 |
self._modecache[(topath, revid)] = mode |
327 |
changes.append((topath, revid)) |
|
328 |
||
329 |
return changes, renames |
|
330 |
||
331 |
def _filterghosts(self, ids): |
|
332 |
"""Filters out ghost revisions which hg does not support, see |
|
333 |
<http://bazaar-vcs.org/GhostRevision> |
|
334 |
""" |
|
335 |
parentmap = self.sourcerepo.get_parent_map(ids) |
|
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convert: fixed python2.3 incompatibility in bzr source (generator expression)
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents:
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diff
changeset
|
336 |
parents = tuple([parent for parent in ids if parent in parentmap]) |
7053 | 337 |
return parents |