/brz/remove-bazaar

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It turns out CHKSerializer was inheriting from xml5

However, xml5 does *not* support rich roots. So it was inherently a bad
xml format for trasmitting rich-root information.
I don't believe the XML format was used elsewhere (there was some code
in StreamSource that used it for a while, but that is currently replaced
by the InterDifferingSerializer code path, and in the future we will
be switching to inventory deltas anyway.)

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tools/trace-revisions
 
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#! /usr/bin/env python
 
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import sys
 
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from bzrlib.branch import Branch
 
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b = Branch.open('.')
 
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rev_id = sys.argv[1]
 
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rh = []
 
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while True:
 
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    rh.append(rev_id)
 
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    rev = b.get_revision(rev_id)
 
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    if rev.parent_ids:
 
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        rev_id = rev.parent_ids[0]
 
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    else:
 
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        break
 
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rh.reverse()
 
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for rev_id in rh:
 
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    print rev_id