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  • Committer: Robert Collins
  • Date: 2005-09-14 09:01:06 UTC
  • mto: (1185.1.12)
  • mto: This revision was merged to the branch mainline in revision 1390.
  • Revision ID: robertc@robertcollins.net-20050914090106-50ddfad9500a8ae9
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bzrlib/hashcache.py
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# TODO: Perhaps return more details on the file to avoid statting it
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# again: nonexistent, file type, size, etc
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# TODO: Perhaps use a Python pickle instead of a text file; might be faster.
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CACHE_HEADER = "### bzr hashcache v5\n"
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from bzrlib.osutils import sha_file
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from bzrlib.trace import mutter, warning
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from bzrlib.atomicfile import AtomicFile
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    def write(self):
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        """Write contents of cache to file."""
 
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        from atomicfile import AtomicFile
 
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        outf = AtomicFile(self.cache_file_name(), 'wb')
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        try:
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            print >>outf, CACHE_HEADER,
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            inf = file(fn, 'rb', buffering=65000)
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        except IOError, e:
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            mutter("failed to open %s: %s" % (fn, e))
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            # better write it now so it is valid
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            self.needs_write = True
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            return
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        if hdr != CACHE_HEADER:
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            mutter('cache header marker not found at top of %s; discarding cache'
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                   % fn)
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            self.needs_write = True
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            return
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        for l in inf: