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authorLibravatar Stefan Beller <sbeller@google.com>2018-06-14 10:31:07 -0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2018-06-14 14:02:23 -0700
commit5fc84755f1478ea8c0f05b8d7be67a3c96a24bff (patch)
tree5562bbacdfc79557d555b829a93f7f89f25a1d61 /Documentation/RelNotes/1.7.5.1.txt
parentGit 2.18-rc2 (diff)
downloadtgif-5fc84755f1478ea8c0f05b8d7be67a3c96a24bff.tar.xz
submodule: fix NULL correctness in renamed broken submodules
When fetching with recursing into submodules, the fetch logic inspects the superproject which submodules actually need to be fetched. This is tricky for submodules that were renamed in the fetched range of commits. This was implemented in c68f8375760 (implement fetching of moved submodules, 2017-10-16), and this patch fixes a mistake in the logic there. When the warning is printed, the `name` might be NULL as default_name_or_path can return NULL, so fix the warning to use the path as obtained from the diff machinery, as that is not NULL. While at it, make sure we only attempt to load the submodule if a git directory of the submodule is found as default_name_or_path will return NULL in case the git directory cannot be found. Note that passing NULL to submodule_from_name is just a semantic error, as submodule_from_name accepts NULL as a value, but then the return value is not the submodule that was asked for, but some arbitrary other submodule. (Cf. 'config_from' in submodule-config.c: "If any parameter except the cache is a NULL pointer just return the first submodule. Can be used to check whether there are any submodules parsed.") Reported-by: Duy Nguyen <pclouds@gmail.com> Helped-by: Duy Nguyen <pclouds@gmail.com> Helped-by: Heiko Voigt <hvoigt@hvoigt.net> Signed-off-by: Stefan Beller <sbeller@google.com> Acked-by: Heiko Voigt <hvoigt@hvoigt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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