Rev 3911: We can use 'random_id=True' when copying the streams. in http://bzr.arbash-meinel.com/branches/bzr/brisbane/lazy_gc_stream

[John Arbash Meinel]

At http://bzr.arbash-meinel.com/branches/bzr/brisbane/lazy_gc_stream

------------------------------------------------------------
revno: 3911
revision-id: john at arbash-meinel.com-20090319203157-h1b6rtdqm3wjjgli
parent: john at arbash-meinel.com-20090319030602-stjxub1g3yhq0u32
committer: John Arbash Meinel <john at arbash-meinel.com>
branch nick: lazy_gc_stream
timestamp: Thu 2009-03-19 15:31:57 -0500
message:
  We can use 'random_id=True' when copying the streams.
  This is because the 'get_stream' code is responsible for ensuring
  the keys are truly non-overlapping, and we know we are creating a
  new pack file.
  
  It might mean that we have some overlap with yet-another existing
  pack file, but only if some other operation inserted it accidentally,
  and that doesn't hurt anything. When we autopack or fetch, we will
  skip one of those records anyway.
  
  This saves quite a bit of time, since we don't have to look up
  texts in the index we are writing. Mostly only in the case of
  large projects where we have spilled some of the nodes to disk
  already.
-------------- next part --------------
=== modified file 'bzrlib/repofmt/groupcompress_repo.py'
--- a/bzrlib/repofmt/groupcompress_repo.py	2009-03-17 20:33:54 +0000
+++ b/bzrlib/repofmt/groupcompress_repo.py	2009-03-19 20:31:57 +0000
@@ -382,6 +382,7 @@
         try:
             stream = vf_to_stream(source_vf, keys, message, child_pb)
             for _ in target_vf._insert_record_stream(stream,
+                                                     random_id=True,
                                                      reuse_blocks=False):
                 pass
         finally:
@@ -415,6 +416,7 @@
             for stream in self._get_chk_streams(source_vf, total_keys,
                                                 pb=child_pb):
                 for _ in target_vf._insert_record_stream(stream,
+                                                         random_id=True,
                                                          reuse_blocks=False):
                     pass
         finally: