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Viewing changes to branchview/linegraph.py

  • Committer: Aaron Bentley
  • Date: 2008-03-04 18:03:39 UTC
  • Revision ID: aaron@aaronbentley.com-20080304180339-5is215gbue9ff3tu
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branchview/linegraph.py
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__copyright__ = "Copyright © 2005 Canonical Ltd."
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__author__    = "Scott James Remnant <scott@ubuntu.com>"
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from bzrlib.revision import NULL_REVISION
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from bzrlib.tsort import merge_sort
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def linegraph(repository, start_revs, maxnum, broken_line_length = None,
 
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def linegraph(repository, start, maxnum, broken_line_length = None,
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              graph_data = True, mainline_only = False):
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    """Produce a directed graph of a bzr repository.
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    curved, kinked, etc.) and to pick the actual colours for each index.
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    """
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    graph = repository.get_graph()
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    graph_parents = {}
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    ghosts = set()
 
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    graph_parents = repository.get_revision_graph(start)
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    graph_children = {}
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    for (revid, parent_revids) in graph.iter_ancestry(start_revs):
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        if parent_revids is None:
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            ghosts.add(revid)
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            continue
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        if parent_revids == (NULL_REVISION,):
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            graph_parents[revid] = ()
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        else:
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            graph_parents[revid] = parent_revids
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        for parent in parent_revids:
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            graph_children.setdefault(parent, []).append(revid)
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        graph_children.setdefault(revid, [])
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    for ghost in ghosts:
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        for ghost_child in graph_children[ghost]:
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            graph_parents[ghost_child] = [p for p in graph_parents[ghost_child]
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                                          if p not in ghosts]
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    graph_parents["top:"] = start_revs
 
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    for revid in graph_parents.iterkeys():
 
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        graph_children[revid] = []
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    if len(graph_parents)>0:
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        merge_sorted_revisions = merge_sort(
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            graph_parents,
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            "top:",
 
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            start,
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            generate_revno=True)
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    else:
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        merge_sorted_revisions = ()
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    if mainline_only:
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        merge_sorted_revisions = [elem for elem in merge_sorted_revisions \
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                                  if len(elem[3])==1 ]
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    assert merge_sorted_revisions[0][1] == "top:"
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    merge_sorted_revisions = merge_sorted_revisions[1:]
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    revid_index = {}
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    revno_index = {}
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        revid_index[revid] = rev_index
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        parents = graph_parents[revid]
 
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        for parent_revid in parents:
 
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            graph_children[parent_revid].append(revid)
 
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        linegraph.append([revid,
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                          None,
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                          [],