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  • Committer: aaron.bentley at utoronto
  • Date: 2005-09-04 02:59:56 UTC
  • mfrom: (1172)
  • mto: (1185.3.4)
  • mto: This revision was merged to the branch mainline in revision 1178.
  • Revision ID: aaron.bentley@utoronto.ca-20050904025956-776ba4f07de97700
Merged mpool's latest changes (~0.0.7)

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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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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import bzrlib.errors
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from bzrlib.selftest.testrevision import make_branches
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from bzrlib.trace import mutter, note
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from bzrlib.branch import Branch
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from bzrlib.progress import ProgressBar
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import sys
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import os
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def has_revision(branch, revision_id):
 
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    try:
 
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        branch.get_revision_xml(revision_id)
 
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        return True
 
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    except bzrlib.errors.NoSuchRevision:
 
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        return False
 
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def greedy_fetch(to_branch, from_branch, revision=None, pb=None):
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    """Copy a revision and all available ancestors from one branch to another
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    If no revision is specified, uses the last revision in the source branch's
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    return count, all_failed
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from testsweet import InTempDir
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from bzrlib.commit import commit
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def has_revision(branch, revision_id):
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    try:
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        branch.get_revision_xml(revision_id)
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        return True
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    except bzrlib.errors.NoSuchRevision:
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        return False
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class TestFetch(InTempDir):
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    def runTest(self):
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        def new_branch(name):
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            os.mkdir(name)
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            return Branch(name, init=True)
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        #highest indices a: 5, b: 7
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        br_a, br_b = make_branches()
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        assert not has_revision(br_b, br_a.revision_history()[3])
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        assert has_revision(br_b, br_a.revision_history()[2])
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        assert len(br_b.revision_history()) == 7
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        assert greedy_fetch(br_b, br_a, br_a.revision_history()[2])[0] == 0
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        # greedy_fetch is not supposed to alter the revision history
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        assert len(br_b.revision_history()) == 7
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        assert not has_revision(br_b, br_a.revision_history()[3])
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        assert len(br_b.revision_history()) == 7
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        assert greedy_fetch(br_b, br_a, br_a.revision_history()[3])[0] == 1
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        assert has_revision(br_b, br_a.revision_history()[3])
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        assert not has_revision(br_a, br_b.revision_history()[3])
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        assert not has_revision(br_a, br_b.revision_history()[4])
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        # When a non-branch ancestor is missing, it should be a failure, not
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        # exception
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        br_a4 = new_branch('br_a4')
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        count, failures = greedy_fetch(br_a4, br_a)
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        assert count == 6
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        assert failures == set((br_b.revision_history()[4],
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                                br_b.revision_history()[5])) 
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        assert greedy_fetch(br_a, br_b)[0] == 4
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        assert has_revision(br_a, br_b.revision_history()[3])
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        assert has_revision(br_a, br_b.revision_history()[4])
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        br_b2 = new_branch('br_b2')
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        assert greedy_fetch(br_b2, br_b)[0] == 7
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        assert has_revision(br_b2, br_b.revision_history()[4])
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        assert has_revision(br_b2, br_a.revision_history()[2])
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        assert not has_revision(br_b2, br_a.revision_history()[3])
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        br_a2 = new_branch('br_a2')
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        assert greedy_fetch(br_a2, br_a)[0] == 9
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        assert has_revision(br_a2, br_b.revision_history()[4])
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        assert has_revision(br_a2, br_a.revision_history()[3])
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        br_a3 = new_branch('br_a3')
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        assert greedy_fetch(br_a3, br_a2)[0] == 0
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        for revno in range(4):
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            assert not has_revision(br_a3, br_a.revision_history()[revno])
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        assert greedy_fetch(br_a3, br_a2, br_a.revision_history()[2])[0] == 3
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        fetched = greedy_fetch(br_a3, br_a2, br_a.revision_history()[3])[0]
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        assert fetched == 3, "fetched %d instead of 3" % fetched
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        # InstallFailed should be raised if the branch is missing the revision
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        # that was requested.
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        self.assertRaises(bzrlib.errors.InstallFailed, greedy_fetch, br_a3,
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                          br_a2, 'pizza')
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        # InstallFailed should be raised if the branch is missing a revision
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        # from its own revision history
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        br_a2.append_revision('a-b-c')
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        self.assertRaises(bzrlib.errors.InstallFailed, greedy_fetch, br_a3,
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                          br_a2)
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if __name__ == '__main__':
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    import sys
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    sys.exit(run_suite(unittest.makeSuite()))