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  • Committer: Vincent Ladeuil
  • Date: 2008-12-04 17:12:46 UTC
  • mto: (3902.1.1 bzr.integration)
  • mto: This revision was merged to the branch mainline in revision 3903.
  • Revision ID: v.ladeuil+lp@free.fr-20081204171246-p28b3u0e2alz53iv
Fix bug #270863 by preserving 'bzr+http[s]' decorator.

* bzrlib/transport/remote.py:
(RemoteHTTPTransport._redirected_to): Specific implementation to
handle the redirections.

* bzrlib/transport/http/_urllib.py:
(HttpTransport_urllib.__init__): Fix parameter order.

* bzrlib/transport/http/_pycurl.py:
(PyCurlTransport.__init__): Fix parameter order.

* bzrlib/transport/http/__init__.py:
(HttpTransportBase.external_url): Semi drive-by fix, external_url
shouldn't expose the implementation qualifier (it's private to bzr
not externally usable).

* bzrlib/transport/decorator.py:
(TransportDecorator._redirected_to): Cleanup.

* bzrlib/tests/test_smart_transport.py:
(RemoteHTTPTransportTestCase): Add specific tests for
_redirected_to.

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Scaling analysys of Merge
 
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=========================
 
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1. Fetch revisions O(a)
 
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2. Common Ancestor [O(b)] **O(h)**
 
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3. Calculate tree merge O(c) [+ O(b) + O(d)] **+ O(i)**
 
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 - text merge O(e * e * f) + O(b)
 
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4. Find filesystem conflicts O(c)
 
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5. Resolve filesystem conflicts O(g)
 
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6. Apply changes O(c) + O(log(d))
 
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7. Set pending merges O(1)
 
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8. Print conflicts O(g)
 
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9. Print changes O(c)
 
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:a: revisions missing from repo:
 
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:b: nodes in the revision graph:
 
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:c: files that differ between base and other:
 
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:d: number of files in the tree
 
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:e: number of lines in the text
 
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:f: number number of files requiring text merge
 
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:g: number of conflicts (g <= c)
 
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:h: humber of uncommon ancestors
 
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:i: number of revisions between base and other
 
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Needs
 
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-----
 
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- Access to revision graph proportional to number of revisions read
 
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- Access to changed file metadata proportional to number of changes and number of intervening revisions.
 
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- O(1) access to fulltexts
 
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Notes
 
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-----
 
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Multiparent deltas may offer some nice properties for performance of annotation based merging.