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Add a new function, get_tree_entry_follow_symlinks, to tree-walk.[ch]. The function is not yet used. It will be used to implement git cat-file --batch --follow-symlinks. The function locates an object by path, following symlinks in the repository. If the symlinks lead outside the repository, the function reports this to the caller. Signed-off-by: David Turner <dturner@twopensource.com> Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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