【git】 创建一个新分支

需要创建一个新分支，专门用作为为项目修改后的代码的存储。

参考 http://gitref.justjavac.com/branching/

参考 http://www.cnblogs.com/springbarley/archive/2012/11/03/2752984.html

git branch 可以查看分支：

root@Ubuntu32:/home/zhangbin/streaming/live//jni# git branch
* master

增加一个新分支

root@Ubuntu32:/home/zhangbin/streaming/live//jni# git branch skjni

再次查看分支：
root@Ubuntu32:/home/zhangbin/streaming/live/jni# git branch
* master
  skjni

如何切换到新分支呢？

root@Ubuntu32:/home/zhangbin/streaming/live//jni# git branch skjni
fatal: A branch named 'skjni' already exists.

为了避免覆盖（现在的文件与git服务器中的文件大不相同了），新建了一个文件夹：

root@Ubuntu32:/home/zhangbin/streaming/live/jni# mkdir test
root@Ubuntu32:/home/zhangbin/streaming/live//jni# cd test

这个命令是新建并且切换到新分支的，所以报错：

root@Ubuntu32:/home/zhangbin/streaming/live/jni/test# git checkout -b skjni
fatal: A branch named 'skjni' already exists.

切换到新分支：

root@Ubuntu32:/home/zhangbin/streaming/live//jni/test# git checkout skjni
M jni/Android.mk
M jni/Android.mk~
D jni/Untitled Folder/sk_hdi_av.h
D jni/Untitled Folder/sk_hdi_enc.h
D jni/jni-with encode nal ok .rar

等等等等。。。

但是实际上，这些文件实际上没有被下载到本地。

上传现在的代码到git服务器端：

root@Ubuntu32:/home/zhangbin/streaming/live//jni# git add .
warning: You ran 'git add' with neither '-A (--all)' or '--ignore-removal',
whose behaviour will change in Git 2.0 with respect to paths you removed.
Paths like 'jni/Untitled Folder/sk_hdi_av.h' that are
removed from your working tree are ignored with this version of Git.


* 'git add --ignore-removal <pathspec>', which is the current default,
  ignores paths you removed from your working tree.


* 'git add --all <pathspec>' will let you also record the removals.


Run 'git status' to check the paths you removed from your working tree.


root@Ubuntu32:/home/zhangbin/streaming/live//jni# git commit -m "注释"
[skjni 8798cd2] 注释
 40 files changed, 1328 insertions(+), 3013 deletions(-)
 create mode 100755 jni/jni_24_1.rar
 create mode 100755 jni/jni_24_2.rar
 create mode 100755 "jni/jni_24_3\347\254\254\344\270\200\346\254\241\344\271\210\346\234\211\346\255\273\346\234\272.rar"
 create mode 100755 "jni/jni\342\200\224\342\200\22424\342\200\224\342\200\2243 \347\254\254\344\270\200\346\254\241\346\262\241\346\234\211\346\255\273\346\234\272.rar"
 rewrite jni/live/-live.IAB (62%)
 rewrite jni/live/-live.IAD (98%)
 rewrite jni/live/-live.IMB (62%)
 rewrite jni/live/-live.IMD (93%)

 mode change 100644 => 100755 jni/live/liveMedia/FramedSource.cpp
 create mode 100755 jni/skjni.IAB
 create mode 100755 jni/skjni.IAD
 create mode 100755 jni/skjni.IMB
 create mode 100755 jni/skjni.IMD
 create mode 100755 jni/skjni.PFI
 create mode 100755 jni/skjni.PO
 create mode 100755 jni/skjni.PR
 create mode 100755 jni/skjni.PRI
 create mode 100755 jni/skjni.PS
 create mode 100755 jni/skjni.SearchResults
 create mode 100755 jni/skjni.WK3
 rewrite jni/streamer.cpp (80%)
 rewrite jni/x264Wrapper.cpp (73%)

上传到skjni分支：

root@Ubuntu32:/home/zhangbin/streaming/live//jni# git push origin skjni
Counting objects: 74, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (44/44), done.
Writing objects: 100% (45/45), 1.96 MiB | 1.24 MiB/s, done.
Total 45 (delta 24), reused 0 (delta 0)
To file:///home/zhangbin/alex/gitProject/meStreamer.git
 * [new branch]      skjni -> skjni

通过查看gitweb可知：

（1）分支skjni与master并列。

（2）上传到分支skjni后，仅仅上传了与master代码不一样（修改、增加）的几个文件。一样的文件，没有上传到分支。