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  • Committer: Andrew Bennetts
  • Date: 2007-03-26 06:24:01 UTC
  • mto: This revision was merged to the branch mainline in revision 2376.
  • Revision ID: andrew.bennetts@canonical.com-20070326062401-k3nbefzje5332jaf
Deal with review comments from Robert:

  * Add my name to the NEWS file
  * Move the test case to a new module in branch_implementations
  * Remove revision_history cruft from identitymap and test_identitymap
  * Improve some docstrings

Also, this fixes a bug where revision_history was not returning a copy of the
cached data, allowing the cache to be corrupted.

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bzrlib/benchmarks/bench_log.py
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from bzrlib.transform import TreeTransform
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from bzrlib.workingtree import WorkingTree
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class LinesDone(Exception):
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    """Raised when `LineConsumer` reaches the required number of lines."""
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    pass
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class LineConsumer(object):
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    """Count lines that are produced.
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    When the required number of lines have been reached, raise `LinesDone`.
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    """
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    def __init__(self, required_lines):
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        """Create a new consumer.
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        :param required_lines: How many lines must be produced.
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        :type required_lines: integer
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        """
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        self.required_lines = required_lines
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    def write(self, text):
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        """Write some text to the black hole.
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        But count how many lines have been written.
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        :param text: A string that would be written.
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        :raise LinesDone: when the required number of lines has been reached.
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        :return: None
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        """
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        self.required_lines -= text.count('\n')
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        if self.required_lines < 0:
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            raise LinesDone()
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class LogBenchmark(Benchmark):
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    """Benchmarks for ``'bzr log'`` performance."""
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    def test_log(self):
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        """Run log in a many-commit tree."""
 
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        """Run log in a many-commit tree.""" 
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        tree = self.make_many_commit_tree(hardlink=True)
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        lf = log_formatter('long', to_file=StringIO())
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        self.time(show_log, tree.branch, lf, direction='reverse')
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    def test_cmd_log(self):
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        """Test execution of the log command.""" 
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        tree = self.make_many_commit_tree(hardlink=True)
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        self.time(self.run_bzr, ['log', '-r', '-4..'])
 
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        self.time(self.run_bzr, 'log', '-r', '-4..')
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    def test_cmd_log_subprocess(self):
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        """Text startup and execution of the log command."""