1.1.19. git submodule命令¶

set up the submodule the first time:

cd ~/main
git submodule add git://<submodule>.git ./subm
git submodule update --init
git add .
git commit -a

fetch submodule after cloning a repository:

git clone git://<mainmodule>.git
git submodule init
git submodule update

pull upstream main repo changes and update submodule contents:
```
git pull origin master
git submodule update
```

pull upstream changes to the submodules:

cd ./subm
git pull origin/master
cd ..
git commit ./subm -m "update submodule reference"

Edit and commit file in your submodule:

cd ./subm
edit <file>
git commit <file> -m "update <file>"
cd ..
git commit ./subm -m "update submodule reference"

Push your submodule changes to the submodule stream:
```
cd .subm
git push origin master
```

other:

git submodule foreach git pull origin master
or
git submodule foreach /path/to/some/cool/script.sh

批量:

git submodule foreach git pull
git submodule foreach --recursive git submodule init
git submodule foreach --recursive git submodule update

Remove a Submodule within git [1]¶

Delete the relevant section from the .gitmodules file. The section would look similar to:

[submodule "vendor"]
path = vendor
url = git://github.com/some-user/some-repo.git

Stage the .gitmodules changes via command line using git add .gitmodule
Delete the relevant section from the .git/config file, which would like this:
```
[submodule "vendor"]
url = git://github.com/some-user/some-repo.git
```
Run git rm --cached path/to/submodule . Don’t include a trailing slash——which will lead to error.
Run rm -rf .git/modules/submodule
Commit the change
Delete the now untracked submodule files rm -rf path/to/submodule