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  • Committer: Jelmer Vernooij
  • Date: 2012-01-06 22:44:57 UTC
  • mfrom: (6436 +trunk)
  • mto: (6437.3.11 2.5)
  • mto: This revision was merged to the branch mainline in revision 6444.
  • Revision ID: jelmer@samba.org-20120106224457-re0pcy0fz31xob77
Merge bzr.dev.

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bzrlib/log.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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"""Code to show logs of changes.
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Various flavors of log can be produced:
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all the changes since the previous revision that touched hello.c.
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"""
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from __future__ import absolute_import
 
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import codecs
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from cStringIO import StringIO
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from itertools import (
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        and (not generate_merge_revisions
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             or not _has_merges(branch, end_rev_id))):
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        # If a single revision is requested, check we can handle it
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        iter_revs = _generate_one_revision(branch, end_rev_id, br_rev_id,
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                                           br_revno)
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    elif not generate_merge_revisions:
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        # If we only want to see linear revisions, we can iterate ...
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        iter_revs = _generate_flat_revisions(branch, start_rev_id, end_rev_id,
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                                             direction, exclude_common_ancestry)
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        if direction == 'forward':
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            iter_revs = reversed(iter_revs)
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    else:
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        iter_revs = _generate_all_revisions(branch, start_rev_id, end_rev_id,
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                                            direction, delayed_graph_generation,
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                                            exclude_common_ancestry)
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        if direction == 'forward':
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            iter_revs = _rebase_merge_depth(reverse_by_depth(list(iter_revs)))
 
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        return  _generate_one_revision(branch, end_rev_id, br_rev_id,
 
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                                       br_revno)
 
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    if not generate_merge_revisions:
 
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        try:
 
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            # If we only want to see linear revisions, we can iterate ...
 
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            iter_revs = _linear_view_revisions(
 
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                branch, start_rev_id, end_rev_id,
 
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                exclude_common_ancestry=exclude_common_ancestry)
 
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            # If a start limit was given and it's not obviously an
 
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            # ancestor of the end limit, check it before outputting anything
 
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            if (direction == 'forward'
 
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                or (start_rev_id and not _is_obvious_ancestor(
 
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                        branch, start_rev_id, end_rev_id))):
 
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                    iter_revs = list(iter_revs)
 
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            if direction == 'forward':
 
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                iter_revs = reversed(iter_revs)
 
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            return iter_revs
 
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        except _StartNotLinearAncestor:
 
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            # Switch to the slower implementation that may be able to find a
 
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            # non-obvious ancestor out of the left-hand history.
 
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            pass
 
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    iter_revs = _generate_all_revisions(branch, start_rev_id, end_rev_id,
 
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                                        direction, delayed_graph_generation,
 
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                                        exclude_common_ancestry)
 
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    if direction == 'forward':
 
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        iter_revs = _rebase_merge_depth(reverse_by_depth(list(iter_revs)))
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    return iter_revs
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        return [(rev_id, revno_str, 0)]
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def _generate_flat_revisions(branch, start_rev_id, end_rev_id, direction,
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                             exclude_common_ancestry=False):
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    result = _linear_view_revisions(
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        branch, start_rev_id, end_rev_id,
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        exclude_common_ancestry=exclude_common_ancestry)
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    # If a start limit was given and it's not obviously an
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    # ancestor of the end limit, check it before outputting anything
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    if direction == 'forward' or (start_rev_id
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        and not _is_obvious_ancestor(branch, start_rev_id, end_rev_id)):
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        try:
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            result = list(result)
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        except _StartNotLinearAncestor:
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            raise errors.BzrCommandError(gettext('Start revision not found in'
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                ' left-hand history of end revision.'))
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    return result
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def _generate_all_revisions(branch, start_rev_id, end_rev_id, direction,
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                            delayed_graph_generation,
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                            exclude_common_ancestry=False):
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      kind is one of values 'directory', 'file', 'symlink', 'tree-reference'.
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      branch will be read-locked.
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    """
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    from builtins import _get_revision_range
 
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    from bzrlib.builtins import _get_revision_range
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    tree, b, path = controldir.ControlDir.open_containing_tree_or_branch(
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        file_list[0])
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    add_cleanup(b.lock_read().unlock)