git 单个文件的格式补丁
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format-patch for a single file
提问by ant2009
I have a file called test_module.c that has some differences that I want to apply to my local working copy.
我有一个名为 test_module.c 的文件，它有一些我想应用于我的本地工作副本的差异。
I tried to create patch file from the remote by doing the following. However, git didn't complain about any errors. And didn't create any patch file either.
我尝试通过执行以下操作从远程创建补丁文件。然而，git 并没有抱怨任何错误。并且也没有创建任何补丁文件。
git format-patch master/dev_branch test/test_module.c
It is possible to create a patch of a single file, that I can apply?
可以创建单个文件的补丁，我可以应用吗？
(Using git version 1.7.5.4)
（使用 git 版本 1.7.5.4）
回答by Mark Longair
If you give git format-patcha single revision, it will produce patches for each commit sincethat revision. If you see no output from that command, then I suspect that there were no changes to that file between origin/masterand your current HEAD. As an alternative, you can provide a revision range (e.g. origin/master~3..origin/master) which covers the changes introduced to that file. Or, if the changes you want to produce a patch for are just contained in the single commit at the tip of origin/master, you can use the -1parameter, as in:
如果您提供git format-patch单个修订，它将为自该修订以来的每次提交生成补丁。如果您没有看到该命令的输出，那么我怀疑该文件origin/master与您当前的HEAD. 作为替代方案，您可以提供一个修订范围（例如origin/master~3..origin/master），其中涵盖了对该文件引入的更改。或者，如果要为其生成补丁的更改仅包含在 提示的单个提交中，则origin/master可以使用该-1参数，如下所示：
git format-patch -1 origin/master test/test_module.c
回答by Ondrej Slinták
You can use following syntax for creating patch for single file:
您可以使用以下语法为单个文件创建补丁：
git format-patch [commit_hash] [file]
