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Limbo is a temporary directory use to hold new versions of files.
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Files are added to limbo by new_file, new_directory, new_symlink, and their
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convenience variants (create_*). Files may be removed from limbo using
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cancel_creation. Files are renamed from limbo into their final location as
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part of TreeTransform.apply
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Files are added to limbo by create_file, create_directory, create_symlink,
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and their convenience variants (new_*). Files may be removed from limbo
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using cancel_creation. Files are renamed from limbo into their final
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location as part of TreeTransform.apply
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Limbo must be cleaned up, by either calling TreeTransform.apply or
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calling TreeTransform.finalize.
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Files are placed into limbo inside their parent directories, where
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possible. This reduces subsequent renames, and makes operations involving
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lots of files faster. This is only possible if the parent directory
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is created *before* creating any of its children.
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lots of files faster. This optimization is only possible if the parent
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directory is created *before* creating any of its children, so avoid
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creating children before parents, where possible.
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This temporary directory is used by _FileMover for storing files that are
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about to be deleted. FileMover does not delete files until it is
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sure that a rollback will not happen. In case of rollback, the files
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about to be deleted. In case of rollback, the files will be restored.
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FileMover does not delete files until it is sure that a rollback will not
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def __init__(self, tree, pb=DummyProgress()):
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"""Note: a tree_write lock is taken on the tree.
added
removed
bzrlib/transform.py
