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- Committer: Gary van der Merwe
- Date: 2007-09-09 17:52:49 UTC
- mto: (256.2.37 gtk)
- mto: This revision was merged to the branch mainline in revision 289.
- Revision ID: garyvdm@gmail.com-20070909175249-c9jz52xlc98lsvve
Implement a TreeModel that loads revisions incrementaly.
- files added:
- tests/test_viz.py
- files removed:
- branchbox.py
- branchview
- preferences
- files renamed:
- icons/bzr-icon-64.png => bzr-icon-64.png
- revisionview.py => logview.py
- preferences/__init__.py => preferences.py
- branchview/graphcell.py => viz/graphcell.py
- branchview/linegraph.py => viz/linegraph.py
- branchview/treemodel.py => viz/treemodel.py
- files modified:
- .bzrignore
added
removed
viz/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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from bzrlib import ui
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def linegraph(graph, start_revs, maxnum=None, broken_line_length=None,
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graph_data=True, mainline_only=False, root_progress=None):
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"""Produce a directed graph of a bzr repository.
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Returns a tuple of (line_graph, revid_index, columns_len) where
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* line_graph is a list of tuples of (revid,
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node,
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lines,
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parents,
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children,
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revno_sequence),
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* revid_index is a dict of each revision with the key being the revid, and
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the value the row index, and
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* columns_len is the number of columns need to draw the line graph.
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def linegraph(branch, start, maxnum):
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"""Produce a directed graph of a bzr branch.
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Returns a list of tuples of (revid,
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node,
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lines,
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parents,
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children,
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revno_sequence).
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Node is a tuple of (column, colour) with column being a zero-indexed
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column number of the graph that this revision represents and colour
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It's up to you how to actually draw the nodes and lines (straight,
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curved, kinked, etc.) and to pick the actual colours for each index.
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"""
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assert isinstance(start_revs, list)
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def update_root_progress(step_number):
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"""IFF our container received a root progress bar, then update it."""
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if root_progress is not None:
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root_progress.update(current=step_number)
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graph_parents = {}
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ghosts = set()
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mainline = branch.revision_history()
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graph_parents = branch.repository.get_revision_graph(start)
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graph_children = {}
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update_root_progress(1)
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progress_bar = ui.ui_factory.nested_progress_bar()
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try:
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progress_bar.update(msg="Arranging tree fragments")
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for i, (revid, parent_revids) in enumerate(graph.iter_ancestry(start_revs)):
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if i % 25 == 0:
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progress_bar.tick()
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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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finally:
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progress_bar.finished()
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update_root_progress(2)
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progress_bar = ui.ui_factory.nested_progress_bar()
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try:
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progress_bar.update(msg="Removing ghosts", total=len(ghosts))
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for i, ghost in enumerate(ghosts):
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if i % 25 == 0:
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progress_bar.update(current=i)
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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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finally:
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progress_bar.finished()
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graph_parents["top:"] = start_revs
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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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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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for revid in graph_parents.keys():
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graph_children[revid] = []
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merge_sorted_revisions = merge_sort(
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graph_parents,
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start,
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mainline,
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generate_revno=True)
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revid_index = {}
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revno_index = {}
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# This will hold an item for each "branch". For a revisions, the revsion
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# number less the least significant digit is the branch_id, and used as the
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# key for the dict. Hence revision with the same revsion number less the
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# least significant digit are considered to be in the same branch line.
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# e.g.: for revisions 290.12.1 and 290.12.2, the branch_id would be 290.12,
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# and these two revisions will be in the same branch line. Each value is
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# a list of rev_indexes in the branch.
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branch_lines = {}
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linegraph = []
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update_root_progress(3)
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progress_bar = ui.ui_factory.nested_progress_bar()
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try:
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progress_bar.update(msg="Finding nodes", total=len(merge_sorted_revisions))
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for (rev_index, (sequence_number,
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revid,
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merge_depth,
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revno_sequence,
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end_of_merge)) in enumerate(merge_sorted_revisions):
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if rev_index % 25 == 0:
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progress_bar.update(current=rev_index)
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if maxnum and rev_index >= maxnum:
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break
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revid_index[revid] = rev_index
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parents = graph_parents[revid]
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linegraph.append([revid,
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None,
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[],
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parents,
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None,
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revno_sequence])
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if graph_data:
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revno_index[revno_sequence] = rev_index
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branch_id = revno_sequence[0:-1]
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branch_line = None
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if branch_id not in branch_lines:
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branch_line = []
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branch_lines[branch_id] = branch_line
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else:
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branch_line = branch_lines[branch_id]
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branch_line.append(rev_index)
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finally:
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progress_bar.finished()
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if graph_data:
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branch_ids = branch_lines.keys()
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def branch_id_cmp(x, y):
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"""Compaire branch_id's first by the number of digits, then reversed
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by their value"""
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len_x = len(x)
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len_y = len(y)
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if len_x == len_y:
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return -cmp(x, y)
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return cmp(len_x, len_y)
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branch_ids.sort(branch_id_cmp)
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# This will hold a tuple of (child_index, parent_index, col_index) for each
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# line that needs to be drawn. If col_index is not none, then the line is
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# drawn along that column, else the the line can be drawn directly between
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# the child and parent because either the child and parent are in the same
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# branch line, or the child and parent are 1 row apart.
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lines = []
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empty_column = [False for i in range(len(graph_parents))]
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# This will hold a bit map for each cell. If the cell is true, then the
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# cell allready contains a node or line. This use when deciding what column
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# to place a branch line or line in, without it overlaping something else.
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columns = [list(empty_column)]
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update_root_progress(4)
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progress_bar = ui.ui_factory.nested_progress_bar()
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try:
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progress_bar.update(msg="Organizing edges", total=len(branch_ids))
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for i, branch_id in enumerate(branch_ids):
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if i % 25 == 0:
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progress_bar.update(current=i)
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branch_line = branch_lines[branch_id]
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# Find the col_index for the direct parent branch. This will be the
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# starting point when looking for a free column.
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parent_col_index = 0
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parent_index = None
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if len(branch_id) > 1:
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parent_revno = branch_id[0:-1]
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if parent_revno in revno_index:
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parent_index = revno_index[parent_revno]
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parent_node = linegraph[parent_index][1]
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if parent_node:
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parent_col_index = parent_node[0]
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col_search_order = _branch_line_col_search_order(columns,
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parent_col_index)
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color = reduce(lambda x, y: x+y, branch_id, 0)
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cur_cont_line = []
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line_range = []
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last_rev_index = None
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for rev_index in branch_line:
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if last_rev_index:
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if broken_line_length and \
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rev_index - last_rev_index > broken_line_length:
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line_range.append(last_rev_index+1)
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line_range.append(rev_index-1)
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else:
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line_range.extend(range(last_rev_index+1, rev_index))
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line_range.append(rev_index)
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last_rev_index = rev_index
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if parent_index:
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if broken_line_length and \
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parent_index - last_rev_index > broken_line_length:
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line_range.append(last_rev_index+1)
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else:
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line_range.extend(range(last_rev_index+1, parent_index))
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col_index = _find_free_column(columns,
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empty_column,
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col_search_order,
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line_range)
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node = (col_index, color)
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for rev_index in branch_line:
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linegraph[rev_index][1] = node
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columns[col_index][rev_index] = True
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for rev_index in branch_line:
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(sequence_number,
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revid,
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merge_depth,
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revno_sequence,
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end_of_merge) = merge_sorted_revisions[rev_index]
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linegraph[rev_index][4] = graph_children[revid]
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col_index = linegraph[rev_index][1][0]
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for parent_revid in graph_parents[revid]:
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if parent_revid in revid_index:
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parent_index = revid_index[parent_revid]
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parent_node = linegraph[parent_index][1]
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if parent_node:
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parent_col_index = parent_node[0]
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else:
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parent_col_index = None
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col_search_order = \
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_line_col_search_order(columns,
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parent_col_index,
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col_index)
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# If this line is really long, break it.
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if len(branch_id) > 0 and \
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broken_line_length and \
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parent_index - rev_index > broken_line_length:
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child_line_col_index = \
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_find_free_column(columns,
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empty_column,
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col_search_order,
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(rev_index + 1,))
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_mark_column_as_used(columns,
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child_line_col_index,
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(rev_index + 1,))
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# Recall _line_col_search_order to reset it back to
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# the beging.
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col_search_order = \
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_line_col_search_order(columns,
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parent_col_index,
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col_index)
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parent_col_line_index = \
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_find_free_column(columns,
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empty_column,
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col_search_order,
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(parent_index - 1,))
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_mark_column_as_used(columns,
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parent_col_line_index,
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(parent_index - 1,))
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lines.append((rev_index,
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parent_index,
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(child_line_col_index,
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parent_col_line_index)))
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else :
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line_col_index = col_index
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if parent_index - rev_index >1:
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line_range = range(rev_index + 1, parent_index)
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line_col_index = \
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_find_free_column(columns,
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empty_column,
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col_search_order,
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line_range)
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_mark_column_as_used(columns,
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line_col_index,
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line_range)
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lines.append((rev_index,
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parent_index,
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(line_col_index,)))
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finally:
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progress_bar.finished()
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update_root_progress(5)
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progress_bar = ui.ui_factory.nested_progress_bar()
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try:
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progress_bar.update(msg="Pretifying graph", total=len(lines))
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for i, (child_index, parent_index, line_col_indexes) in enumerate(lines):
319
if i % 25 == 0:
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progress_bar.update(current=i)
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(child_col_index, child_color) = linegraph[child_index][1]
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(parent_col_index, parent_color) = linegraph[parent_index][1]
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if len(line_col_indexes) == 1:
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if parent_index - child_index == 1:
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linegraph[child_index][2].append(
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(child_col_index,
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parent_col_index,
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parent_color))
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else:
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# line from the child's column to the lines column
332
linegraph[child_index][2].append(
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(child_col_index,
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line_col_indexes[0],
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parent_color))
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# lines down the line's column
337
for line_part_index in range(child_index+1, parent_index-1):
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linegraph[line_part_index][2].append(
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(line_col_indexes[0],
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line_col_indexes[0],
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parent_color))
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# line from the line's column to the parent's column
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linegraph[parent_index-1][2].append(
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(line_col_indexes[0],
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parent_col_index,
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parent_color))
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else:
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# Broken line
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# line from the child's column to the lines column
350
linegraph[child_index][2].append(
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(child_col_index,
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line_col_indexes[0],
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parent_color))
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# Broken line end
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linegraph[child_index+1][2].append(
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(line_col_indexes[0],
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None,
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parent_color))
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# Broken line end
361
linegraph[parent_index-2][2].append(
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(None,
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line_col_indexes[1],
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parent_color))
365
# line from the line's column to the parent's column
366
linegraph[parent_index-1][2].append(
367
(line_col_indexes[1],
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parent_col_index,
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parent_color))
370
finally:
371
progress_bar.finished()
372
return (linegraph, revid_index, len(columns))
373
else:
374
return (linegraph, revid_index, 0)
375
376
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def _branch_line_col_search_order(columns, parent_col_index):
378
for col_index in range(parent_col_index, len(columns)):
379
yield col_index
380
for col_index in range(parent_col_index-1, -1, -1):
381
yield col_index
382
383
def _line_col_search_order(columns, parent_col_index, child_col_index):
384
if parent_col_index is not None:
385
max_index = max(parent_col_index, child_col_index)
386
min_index = min(parent_col_index, child_col_index)
387
for col_index in range(max_index, min_index -1, -1):
388
yield col_index
389
else:
390
max_index = child_col_index
391
min_index = child_col_index
392
yield child_col_index
393
i = 1
394
while max_index + i < len(columns) or \
395
min_index - i > -1:
396
if max_index + i < len(columns):
397
yield max_index + i
398
if min_index - i > -1:
399
yield min_index - i
400
i += 1
401
402
def _find_free_column(columns, empty_column, col_search_order, line_range):
403
for col_index in col_search_order:
404
column = columns[col_index]
405
has_overlaping_line = False
406
for row_index in line_range:
407
if column[row_index]:
408
has_overlaping_line = True
409
break
410
if not has_overlaping_line:
411
break
412
else:
413
col_index = len(columns)
414
column = list(empty_column)
415
columns.append(column)
416
return col_index
417
418
def _mark_column_as_used(columns, col_index, line_range):
419
column = columns[col_index]
420
for row_index in line_range:
421
column[row_index] = True
56
for (index, (sequence_number,
57
revid,
58
merge_depth,
59
revno_sequence,
60
end_of_merge)) in enumerate(merge_sorted_revisions):
61
62
revid_index[revid] = index
63
revno_index[revno_sequence] = index
64
65
branch_id = revno_sequence[0:-1]
66
67
branch_line = None
68
if branch_id not in branch_lines:
69
branch_line = {}
70
branch_lines[branch_id] = branch_line
71
branch_line["rev_indexes"] = []
72
branch_line["min_index"] = index - 1
73
branch_line["max_index"] = 0
74
else:
75
branch_line = branch_lines[branch_id]
76
branch_line["rev_indexes"].append(index)
77
78
parents = graph_parents[revid]
79
for parent_revid in parents:
80
graph_children[parent_revid].append(revid)
81
82
linegraph.append([revid,
83
None,
84
[],
85
parents,
86
None,
87
revno_sequence])
88
89
branch_ids = branch_lines.keys()
90
branch_ids.sort()
91
columns = []
92
93
for branch_id in branch_ids:
94
branch_line = branch_lines[branch_id]
95
branch_line["inward_line_ends"] = []
96
for rev_index in branch_line["rev_indexes"]:
97
(sequence_number,
98
revid,
99
merge_depth,
100
revno_sequence,
101
end_of_merge) = merge_sorted_revisions[rev_index]
102
for parent_revid in graph_parents[revid]:
103
if parent_revid in revid_index:
104
parent_index = revid_index[parent_revid]
105
parent_merge_depth = merge_sorted_revisions[parent_index][2]
106
if parent_merge_depth < merge_depth:
107
branch_line["inward_line_ends"].append(parent_index)
108
if branch_line["max_index"] < parent_index:
109
branch_line["max_index"] =parent_index
110
111
for child_revid in graph_children[revid]:
112
if child_revid in revid_index:
113
child_index = revid_index[child_revid]
114
child_merge_depth = merge_sorted_revisions[child_index][2]
115
if child_merge_depth < merge_depth:
116
branch_line["inward_line_ends"].append(child_index)
117
118
col_index = None
119
start_col_index = 0
120
if branch_id:
121
start_col_index = branch_lines[branch_id[0:-2]]["col_index"]+1
122
for col_search_index in range(start_col_index,len(columns)):
123
column = columns[col_search_index]
124
clashing_lines = []
125
for line in column:
126
if (line["min_index"] <= branch_line["min_index"] and \
127
line["max_index"] > branch_line["min_index"]) or \
128
(line["max_index"] >= branch_line["max_index"] and \
129
line["min_index"] < branch_line["max_index"]):
130
clashing_lines.append(line)
131
132
if not clashing_lines:
133
col_index = col_search_index
134
break
135
136
if not col_index:
137
col_index = len(columns)
138
columns.append([])
139
140
columns[col_index].append(branch_line)
141
branch_line["col_index"] = col_index
142
143
144
for branch_id in branch_ids:
145
branch_line = branch_lines[branch_id]
146
color = reduce(lambda x, y: x+y, branch_id, 0)
147
col_index = branch_line["col_index"]
148
node = (col_index, color)
149
150
for rev_index in branch_line["rev_indexes"]:
151
(sequence_number,
152
revid,
153
merge_depth,
154
revno_sequence,
155
end_of_merge) = merge_sorted_revisions[rev_index]
156
children = graph_children[revid]
157
158
linegraph[rev_index][1] = node
159
linegraph[rev_index][4] = children
160
for child_revid in children:
161
if child_revid in revid_index:
162
child_index = revid_index[child_revid]
163
child_revno_sequence = \
164
merge_sorted_revisions[child_index][3]
165
child_merge_depth = merge_sorted_revisions[child_index][2]
166
child_branch_id = child_revno_sequence[0:-1]
167
child_col_index = branch_lines[child_branch_id]["col_index"]
168
if child_merge_depth < merge_depth:
169
#out from the child to line
170
linegraph[child_index][2].append(
171
(child_col_index,
172
col_index,
173
color))
174
for line_part_index in range(child_index+1, rev_index):
175
linegraph[line_part_index][2].append(
176
(col_index,
177
col_index,
178
color))
179
else:
180
for line_part_index in range(child_index, rev_index-1):
181
linegraph[line_part_index][2].append(
182
(child_col_index,
183
child_col_index,
184
color))
185
186
linegraph[rev_index-1][2].append(
187
(child_col_index,
188
col_index,
189
color))
190
191
return (linegraph, revid_index)
192
422
193
423
194
def same_branch(a, b):
424
195
"""Return whether we think revisions a and b are on the same branch."""
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0