Git submodules are a very powerful way to add libraries to your project. They are easy to add but there is no easy way to remove them.
I recently needed to remove one submodule from one of my project and run in some pitfalls to avoid here are my findings:
If you for example need to remove a submodule called SELibrary in your main git repository folder, do the following:
- Open a terminal shell in you main git repository folder
- Edit the .gitmodule file and find and remove these three lines from it:
[submodule "SELibrary"] path = SELibrary url = https://SergioEstevao@github.com/SergioEstevao/SELibrary.git
- Remove these two lines from .git/config
[submodule "SELibrary"] url = https://SergioEstevao@github.com/SergioEstevao/SELibrary.git
- Delete the git reference file that holds the submodule’s SHA commit id. Note the important lack of a trailing slash.
git rm --cached SELibrary
- Git will now see the entire directory as new files, because it’s no longer a submodule. Now you are free to delete the whole lot.
rm -rf SELibrary/
If you ever need to do a move of a submodule remove it and then add the submodule in the new location.
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