upstream/mercurial-mirror Files · hgext/largefiles/wirestore.py

rbc: fix invalid rbc-revs entries caused by missing cache growth...

rbc: fix invalid rbc-revs entries caused by missing cache growth It was in some cases possible to end up writing to the cache file without growing it first. The range assignment in _setcachedata would append instead of writing at the requested position and thus write the new record in the wrong place. To fix this, we avoid looking up in too small caches, and when growing the cache, do it right before writing the new record to it so we know it has been done correctly.

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             wirestore.py
        
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      # Copyright 2010-2011 Fog Creek Software

      #

      # This software may be used and distributed according to the terms of the

      # GNU General Public License version 2 or any later version.

      '''largefile store working over Mercurial's wire protocol'''

      from __future__ import absolute_import

      from . import (

          lfutil,

          remotestore,

      )

      class wirestore(remotestore.remotestore):

          def __init__(self, ui, repo, remote):

              cap = remote.capable('largefiles')

              if not cap:

                  raise lfutil.storeprotonotcapable([])

              storetypes = cap.split(',')

              if 'serve' not in storetypes:

                  raise lfutil.storeprotonotcapable(storetypes)

              self.remote = remote

              super(wirestore, self).__init__(ui, repo, remote.url())

          def _put(self, hash, fd):

              return self.remote.putlfile(hash, fd)

          def _get(self, hash):

              return self.remote.getlfile(hash)

          def _stat(self, hashes):

              '''For each hash, return 0 if it is available, other values if not.

              It is usually 2 if the largefile is missing, but might be 1 the server

              has a corrupted copy.'''

              batch = self.remote.iterbatch()

              for hash in hashes:

                  batch.statlfile(hash)

              batch.submit()

              return dict(zip(hashes, batch.results()))

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				# Copyright 2010-2011 Fog Creek Software
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				'''largefile store working over Mercurial's wire protocol'''
				from __future__ import absolute_import

				from . import (
				lfutil,
				remotestore,
				)

				class wirestore(remotestore.remotestore):
				def __init__(self, ui, repo, remote):
				cap = remote.capable('largefiles')
				if not cap:
				raise lfutil.storeprotonotcapable([])
				storetypes = cap.split(',')
				if 'serve' not in storetypes:
				raise lfutil.storeprotonotcapable(storetypes)
				self.remote = remote
				super(wirestore, self).__init__(ui, repo, remote.url())

				def _put(self, hash, fd):
				return self.remote.putlfile(hash, fd)

				def _get(self, hash):
				return self.remote.getlfile(hash)

				def _stat(self, hashes):
				'''For each hash, return 0 if it is available, other values if not.
				It is usually 2 if the largefile is missing, but might be 1 the server
				has a corrupted copy.'''
				batch = self.remote.iterbatch()
				for hash in hashes:
				batch.statlfile(hash)
				batch.submit()
				return dict(zip(hashes, batch.results()))