contrib/dumprevlog
author Matt Harbison <matt_harbison@yahoo.com>
Fri, 13 Mar 2015 22:50:40 -0400
changeset 24312 f208ce59a6e5
parent 14233 659f34b833b9
child 29165 a212ca70205c
permissions -rwxr-xr-x
manifest.c: ensure realloc_if_full() returns 1 or 0 This fixes an MSVC 2008 warning that I don't see with gcc 4.6.3-2: warning C4047: 'return' : 'bool' differs in levels of indirection from 'line *' More importantly, the truncation from pointer to 'unsigned char' would have returned 0 if self->lines pointed to an address divisible by 0xFF, which causes find_lines() to return MANIFEST_OOM. I was able to cause this to happen in a trivial program with the gcc compiler.
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#!/usr/bin/env python
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# Dump revlogs as raw data stream
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# $ find .hg/store/ -name "*.i" | xargs dumprevlog > repo.dump
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import sys
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from mercurial import revlog, node, util
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for fp in (sys.stdin, sys.stdout, sys.stderr):
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    util.setbinary(fp)
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for f in sys.argv[1:]:
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    binopen = lambda fn: open(fn, 'rb')
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    r = revlog.revlog(binopen, f)
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    print "file:", f
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    for i in r:
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        n = r.node(i)
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        p = r.parents(n)
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        d = r.revision(n)
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        print "node:", node.hex(n)
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        print "linkrev:", r.linkrev(i)
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        print "parents:", node.hex(p[0]), node.hex(p[1])
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        print "length:", len(d)
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        print "-start-"
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        print d
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        print "-end-"