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authorJacob Keller <jacob.keller@gmail.com>2016-08-31 23:27:18 (GMT)
committerJunio C Hamano <gitster@pobox.com>2016-09-01 01:07:08 (GMT)
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cache: add empty_tree_oid object and helper function
Similar to is_null_oid(), and is_empty_blob_sha1() add an empty_tree_oid along with helper function is_empty_tree_oid(). For completeness, also add an "is_empty_tree_sha1()", "is_empty_blob_sha1()", "is_empty_tree_oid()" and "is_empty_blob_oid()" helpers. To ensure we only get one singleton, implement EMPTY_BLOB_SHA1_BIN as simply getting the hash of empty_blob_oid structure. Signed-off-by: Jacob Keller <jacob.keller@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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