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Viewing changes to bzrlib/builtins.py

- add a basic annotate built-in command

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bzrlib/builtins.py
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                sys.stdout.write(t.as_short_text())
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        finally:
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            b.unlock()
 
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class cmd_annotate(Command):
 
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    """Show the origin of each line in a file.
 
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    This prints out the given file with an annotation on the 
 
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    left side indicating which revision, author and date introduced the 
 
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    change.
 
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    """
 
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    # TODO: annotate directories; showing when each file was last changed
 
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    # TODO: annotate a previous version of a file
 
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    aliases = ['blame', 'praise']
 
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    takes_args = ['filename']
 
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    def run(self, filename):
 
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        from bzrlib.annotate import annotate_file
 
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        b = Branch.open_containing(filename)
 
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        b.lock_read()
 
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        try:
 
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            rp = b.relpath(filename)
 
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            tree = b.revision_tree(b.last_revision())
 
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            file_id = tree.inventory.path2id(rp)
 
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            file_version = tree.inventory[file_id].revision
 
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            annotate_file(b, file_version, file_id, sys.stdout)
 
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        finally:
 
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            b.unlock()