Git Submodule使用完整教程(小结)

➜ henryyan@hy-hp ~/submd/ws/lib1 git:(master) cd .. ➜ henryyan@hy-hp ~/submd/ws git clone ../repos/lib2.git Cloning into lib2... done. warning: You appear to have cloned an empty repository. ➜ henryyan@hy-hp ~/submd/ws cd lib2 ➜ henryyan@hy-hp ~/submd/ws/lib2 git:(master) echo "I'm lib2." > lib2-features ➜ henryyan@hy-hp ~/submd/ws/lib2 git:(master) ✗ git add lib2-features ➜ henryyan@hy-hp ~/submd/ws/lib2 git:(master) ✗ git commit -m "init lib2" [master (root-commit) c22aff8] init lib2 1 files changed, 1 insertions(+), 0 deletions(-) create mode 100644 lib2-features ➜ henryyan@hy-hp ~/submd/ws/lib2 git:(master) git push origin master Counting objects: 3, done. Writing objects: 100% (3/3), 227 bytes, done. Total 3 (delta 0), reused 0 (delta 0) Unpacking objects: 100% (3/3), done. To /home/henryyan/submd/ws/../repos/lib2.git * [new branch] master -> master

2.2 为主项目添加Submodules

2.2.1 为project1添加lib1和lib2

➜ henryyan@hy-hp ~/submd/ws/lib2 git:(master) cd ../project1 ➜ henryyan@hy-hp ~/submd/ws/project1 git:(master) ls project-infos.txt ➜ henryyan@hy-hp ~/submd/ws/project1 git:(master) git submodule add ~/submd/repos/lib1.git libs/lib1 Cloning into libs/lib1... done. ➜ henryyan@hy-hp ~/submd/ws/project1 git:(master) ✗ git submodule add ~/submd/repos/lib2.git libs/lib2 Cloning into libs/lib2... done. ➜ henryyan@hy-hp ~/submd/ws/project1 git:(master) ✗ ls libs project-infos.txt ➜ henryyan@hy-hp ~/submd/ws/project1 git:(master) ✗ ls libs lib1 lib2 ➜ henryyan@hy-hp ~/submd/ws/project1 git:(master) ✗ git status # On branch master # Changes to be committed: # (use "git reset HEAD <file>..." to unstage) # # new file: .gitmodules # new file: libs/lib1 # new file: libs/lib2 # # 查看一下公共类库的内容 ➜ henryyan@hy-hp ~/submd/ws/project1 git:(master) cat libs/lib1/lib1-features I'm lib1. ➜ henryyan@hy-hp ~/submd/ws/project1 git:(master) cat libs/lib2/lib2-features I'm lib2. </file>

好了，到目前为止我们已经使用git submodule add命令为project1成功添加了两个公共类库（lib1、lib2），查看了当前的状态发现添加了一个新文件(.gitmodules)和两个文件夹(libs/lib1、libs/lib2)；那么新增的.gitmodules文件是做什么用的呢？我们查看一下文件内容便知晓了：

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