Git Repo下如何制作一个patch文件

1. 源由

patch分享，更好的差异化比较，减少时间浪费。同时，也可以作为系统集成的差异化补丁，快速实现本地集成。

2. 步骤

2.1 本地代码差异

daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git status
On branch main
Your branch is up to date with 'origin/main'.

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   Makefile
        modified:   README.md
        modified:   msposd.c
        modified:   osd.c

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        osd.h
        osd/util/subtitle.c
        osd/util/subtitle.h

no changes added to commit (use "git add" and/or "git commit -a")

2.2 添加修改代码

daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git add Makefile
daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git add README.md
daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git add msposd.c
daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git add osd.

2.3 添加未跟踪代码

daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git add osd.h
daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git add osd/util/subtitle.c
daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git add osd/util/subtitle.h

2.4 确认打包文件

daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git satus
git: 'satus' is not a git command. See 'git --help'.

The most similar command is
        status
daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git status
On branch main
Your branch is up to date with 'origin/main'.

Changes to be committed:
  (use "git restore --staged <file>..." to unstage)
        modified:   Makefile
        modified:   README.md
        modified:   msposd.c
        modified:   osd.c
        new file:   osd.h
        new file:   osd/util/subtitle.c
        new file:   osd/util/subtitle.h

2.5 输出打包文件

daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git diff --cached > msposd.srt.53.patch

2.6 自查打包文件

Windows系统下，双击Patch文件，非常容易查看的，仔细核对是否是这些改动。

• msposd.srt.53.patch

2.7 恢复工作环境

从这里可以看到多了msposd.srt.53.patch打包文件，其他和2.1一样。

daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git restore --staged .
daniel@daniel-nvidia:~/Work/jetson-fpv/module/msposd$ git status
On branch main
Your branch is up to date with 'origin/main'.

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   Makefile
        modified:   README.md
        modified:   msposd.c
        modified:   osd.c

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        msposd.srt.53.patch
        osd.h
        osd/util/subtitle.c
        osd/util/subtitle.h

no changes added to commit (use "git add" and/or "git commit -a")

3. 总结

这份分享代码，就是针对最近在折腾的原始视频+OSD文本记录的需求，详见：

• [Request] OSD info save as sperate files, not in DVR #35
• add osd/srt support #53

虽然，目前上述需求还有一些问题，但是整体上已经非常接近。只要修正一些小问题，相信不久的将来就能赏心悦目了。