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What does this green icon mean in Github? I know the commit link takes me to another repository. I need to do something similar. Is this a symlink? Or a submodule? Being still somewhat new to git, I’m wondering how I can replicate this myself. Once created, how do I update this external dependency?
This is a submodule: a link to a specific commit in another repository at a different URL. The repository will be cloned when
git submodule update --initis run, and then the referenced commit (784fd39) will be checked out.You can create submodules using
git submodule add <url> <directory>, which will add a submodule reference for the given URL at the directory you specify, in the current working directory.