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authorLibravatar Nguyễn Thái Ngọc Duy <pclouds@gmail.com>2012-12-13 08:14:47 +0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2012-12-13 10:12:25 -0800
commit4a6385fe555f810e8168399df673d00addffb721 (patch)
tree3a737450f654dbd3c206d1c7f4da500628d91cb3 /t/t556x_common
parentindex-v4: document the entry format (diff)
downloadtgif-4a6385fe555f810e8168399df673d00addffb721.tar.xz
index-format.txt: clarify what is "invalid"
A cache-tree entry with a negative entry count is considered invalid by the current Git; it records that we do not know the object name of a tree that would result by writing the directory covered by the cache-tree as a tree object. Clarify that any entry with a negative entry count is invalid, but the implementations must write -1 there. This way, we can later decide to allow writers to use negative values other than -1 to encode optional information on such invalidated entries without harming interoperability; we do not know what will be encoded and how, so we keep these other negative values as reserved for now. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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