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  • Committer: Jelmer Vernooij
  • Date: 2012-02-20 12:19:29 UTC
  • mfrom: (6437.23.11 2.5)
  • mto: (6581.1.1 trunk)
  • mto: This revision was merged to the branch mainline in revision 6582.
  • Revision ID: jelmer@samba.org-20120220121929-7ni2psvjoatm1yp4
Merge bzr/2.5.

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bzrlib/fetch.py
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Copying of history from one branch to another.
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The basic plan is that every branch knows the history of everything
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branch.
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"""
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from __future__ import absolute_import
 
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import operator
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from bzrlib import (
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    graph as _mod_graph,
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    tsort,
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    versionedfile,
 
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    vf_search,
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    )
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""")
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from bzrlib import (
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    errors,
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    ui,
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    )
 
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from bzrlib.i18n import gettext
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from bzrlib.revision import NULL_REVISION
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from bzrlib.trace import mutter
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        pb = ui.ui_factory.nested_progress_bar()
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        pb.show_pct = pb.show_count = False
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        try:
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            pb.update("Finding revisions", 0, 2)
 
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            pb.update(gettext("Finding revisions"), 0, 2)
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            search_result = self._revids_to_fetch()
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            mutter('fetching: %s', search_result)
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            if search_result.is_empty():
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                return
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            pb.update("Fetching revisions", 1, 2)
 
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            pb.update(gettext("Fetching revisions"), 1, 2)
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            self._fetch_everything_for_search(search_result)
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        finally:
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            pb.finished()
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        elif self._last_revision == NULL_REVISION:
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            # fetch_spec is None + last_revision is null => empty fetch.
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            # explicit limit of no revisions needed
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            return _mod_graph.EmptySearchResult()
 
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            return vf_search.EmptySearchResult()
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        elif self._last_revision is not None:
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            return _mod_graph.NotInOtherForRevs(self.to_repository,
 
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            return vf_search.NotInOtherForRevs(self.to_repository,
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                self.from_repository, [self._last_revision],
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                find_ghosts=self.find_ghosts).execute()
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        else: # self._last_revision is None:
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            return _mod_graph.EverythingNotInOther(self.to_repository,
 
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            return vf_search.EverythingNotInOther(self.to_repository,
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                self.from_repository,
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                find_ghosts=self.find_ghosts).execute()
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                    "limit is only supported with a source branch set")
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            # Caller hasn't specified any revisions or source branch
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            if self.target_repo_kind == TargetRepoKinds.EMPTY:
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                return _mod_graph.EverythingResult(self.source_repo)
 
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                return vf_search.EverythingResult(self.source_repo)
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            else:
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                # We want everything not already in the target (or target's
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                # fallbacks).
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                return _mod_graph.EverythingNotInOther(
 
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                return vf_search.EverythingNotInOther(
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                    self.target_repo, self.source_repo).execute()
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        heads_to_fetch = set(self._explicit_rev_ids)
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        if self.source_branch is not None:
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            # heads_to_fetch will almost certainly be present so this doesn't
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            # matter much.
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            all_heads = heads_to_fetch.union(if_present_fetch)
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            ret = _mod_graph.PendingAncestryResult(all_heads, self.source_repo)
 
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            ret = vf_search.PendingAncestryResult(all_heads, self.source_repo)
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            if self.limit is not None:
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                graph = self.source_repo.get_graph()
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                topo_order = list(graph.iter_topo_order(ret.get_keys()))
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                ret = self.source_repo.revision_ids_to_search_result(result_set)
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            return ret
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        else:
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            return _mod_graph.NotInOtherForRevs(self.target_repo, self.source_repo,
 
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            return vf_search.NotInOtherForRevs(self.target_repo, self.source_repo,
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                required_ids=heads_to_fetch, if_present_ids=if_present_fetch,
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                limit=self.limit).execute()