git stash show -p | git apply --reverse
警告,这不会在所有情况下:“git apply -R”(man)不能正确处理两次触及同一路径的补丁,这已在git 2.30(2021年第一季度)中得到纠正。
这在将路径从常规文件更改为符号链接(反之亦然)的补丁中是最相关的。
参见Jonathan Tan (jhowtan)提交b0f266d(2020年10月20日)。
(由Junio C Hamano - gitster -在commit c23cd78中合并,2020年11月2日)
apply:当-R时,也是反向的section列表
协助:Junio C Hamano
署名:乔纳森·谭
A patch changing a symlink into a file is written with 2 sections (in the code, represented as "struct patch"): firstly, the deletion of the symlink, and secondly, the creation of the file.
When applying that patch with -R, the sections are reversed, so we get: (1) creation of a symlink, then (2) deletion of a file.
This causes an issue when the "deletion of a file" section is checked, because Git observes that the so-called file is not a file but a symlink, resulting in a "wrong type" error message.
What we want is: (1) deletion of a file, then (2) creation of a symlink.
In the code, this is reflected in the behavior of previous_patch() when invoked from check_preimage() when the deletion is checked.
Creation then deletion means that when the deletion is checked, previous_patch() returns the creation section, triggering a mode conflict resulting in the "wrong type" error message.
But deletion then creation means that when the deletion is checked, previous_patch() returns NULL, so the deletion mode is checked against lstat, which is what we want.
There are also other ways a patch can contain 2 sections referencing the same file, for example, in 7a07841c0b ("git-apply: handle a patch that touches the same path more than once better", 2008-06-27, Git v1.6.0-rc0 -- merge). "git apply -R"(man) fails in the same way, and this commit makes this case succeed.
Therefore, when building the list of sections, build them in reverse order (by adding to the front of the list instead of the back) when -R is passed.