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由 Junio C Hamano 提交于
The file-scope global variable head_sha1[] was used to hold the object name of the current HEAD commit (unless we are about to make an initial commit). Also there is an independent "static int initial_commit". Fix all the functions on the call-chain that use these two variables to take a new "(const) struct commit *current_head" argument instead, and replace their uses, e.g. "if (initial_commit)" becomes "if (!current_head)" and a reference to "head_sha1" becomes "current_head->object.sha1". Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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