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Add explanation why we do not allow to sparse checkout to empty working tree
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -1119,8 +1119,13 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
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}
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if (ret < 0)
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goto return_failed;
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/*
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* Sparse checkout is meant to narrow down checkout area
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* but it does not make sense to narrow down to empty working
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* tree. This is usually a mistake in sparse checkout rules.
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* Do not allow users to do that.
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*/
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if (o->result.cache_nr && empty_worktree) {
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/* dubious---why should this fail??? */
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ret = unpack_failed(o, "Sparse checkout leaves no entry on working directory");
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goto done;
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}
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