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authorLibravatar Junio C Hamano <gitster@pobox.com>2012-08-24 22:48:55 -0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2012-08-24 23:11:05 -0700
commit6a2abdc12516cd3801bceef4ccfba399c962a074 (patch)
tree02990f9b784b1929e5b7e5b44f04c554cd610070 /t/t5304-prune.sh
parentGit 1.7.9 (diff)
downloadtgif-6a2abdc12516cd3801bceef4ccfba399c962a074.tar.xz
apply: compute patch->def_name correctly under -p0
Back when "git apply" was written, we made sure that the user can skip more than the default number of path components (i.e. 1) by giving "-p<n>", but the logic for doing so was built around the notion of "we skip N slashes and stop". This obviously does not work well when running under -p0 where we do not want to skip any, but still want to skip SP/HT that separates the pathnames of preimage and postimage and want to reject absolute pathnames. Stop using "stop_at_slash()", and instead introduce a new helper "skip_tree_prefix()" with similar logic but works correctly even for the -p0 case. This is an ancient bug, but has been masked for a long time because most of the patches are text and have other clues to tell us the name of the preimage and the postimage. Noticed by Colin McCabe. Signed-off-by: Junio C Hamano <gitster@pobox.com>
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