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  • Committer: Canonical.com Patch Queue Manager
  • Date: 2007-11-04 22:47:34 UTC
  • mfrom: (2951.1.11 integration)
  • Revision ID: pqm@pqm.ubuntu.com-20071104224734-8l8km2gqk9n1pdla
(robertc) Stage one of reconcile for pack repositories - perform inventory gc. (Robert Collins)

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bzrlib/reconcile.py
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    errors,
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    ui,
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    repository,
 
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    repofmt,
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    )
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from bzrlib.trace import mutter, note
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from bzrlib.tsort import TopoSorter
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    def _reconcile_steps(self):
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        """Perform the steps to reconcile this repository."""
 
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        if not self.thorough:
 
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            return
 
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        collection = self.repo._pack_collection
 
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        collection.ensure_loaded()
 
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        collection.lock_names()
 
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        try:
 
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            packs = collection.all_packs()
 
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            all_revisions = self.repo.all_revision_ids()
 
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            total_inventories = len(list(
 
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                collection.inventory_index.combined_index.iter_all_entries()))
 
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            if len(all_revisions):
 
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                self._packer = repofmt.pack_repo.ReconcilePacker(
 
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                    collection, packs, ".reconcile", all_revisions)
 
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                new_pack = self._packer.pack(pb=self.pb)
 
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                if new_pack is not None:
 
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                    self._discard_and_save(packs)
 
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            else:
 
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                # only make a new pack when there is data to copy.
 
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                self._discard_and_save(packs)
 
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            self.garbage_inventories = total_inventories - len(list(
 
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                collection.inventory_index.combined_index.iter_all_entries()))
 
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        finally:
 
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            collection._unlock_names()
 
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    def _discard_and_save(self, packs):
 
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        """Discard some packs from the repository.
 
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        This removes them from the memory index, saves the in-memory index
 
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        which makes the newly reconciled pack visible and hides the packs to be
 
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        discarded, and finally renames the packs being discarded into the
 
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        obsolete packs directory.
 
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        :param packs: The packs to discard.
 
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        """
 
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        for pack in packs:
 
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            self.repo._pack_collection._remove_pack_from_memory(pack)
 
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        self.repo._pack_collection._save_pack_names()
 
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        self.repo._pack_collection._obsolete_packs(packs)