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convert: refactor subversion getchanges and caching

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This commit is contained in:
Mads Kiilerich 2014-08-26 22:03:32 +02:00
parent 667168e1ac
commit 89154d8277
1 changed files with 15 additions and 10 deletions
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25
hgext/convert/subversion.py
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@ -347,7 +347,7 @@ class svn_source(converter_source):
% self.module)
self.last_changed = self.revnum(self.head)
self._changescache = None
self._changescache = (None, None)
if os.path.exists(os.path.join(url, '.svn/entries')):
self.wc = url
@ -444,10 +444,7 @@ class svn_source(converter_source):
return self.heads
def getchanges(self, rev):
if self._changescache and self._changescache[0] == rev:
return self._changescache[1]
self._changescache = None
def _getchanges(self, rev):
(paths, parents) = self.paths[rev]
if parents:
files, self.removed, copies = self.expandpaths(rev, paths, parents)
@ -463,15 +460,23 @@ class svn_source(converter_source):
files.sort()
files = zip(files, [rev] * len(files))
return (files, copies)
# caller caches the result, so free it here to release memory
del self.paths[rev]
def getchanges(self, rev):
# reuse cache from getchangedfiles
if self._changescache[0] == rev:
(files, copies) = self._changescache[1]
else:
(files, copies) = self._getchanges(rev)
# caller caches the result, so free it here to release memory
del self.paths[rev]
return (files, copies)
def getchangedfiles(self, rev, i):
changes = self.getchanges(rev)
self._changescache = (rev, changes)
return [f[0] for f in changes[0]]
# called from filemap - cache computed values for reuse in getchanges
(files, copies) = self._getchanges(rev)
self._changescache = (rev, (files, copies))
return [f[0] for f in files]
def getcommit(self, rev):
if rev not in self.commits: