mg manages __m__ultiple __g__it repositories, making it easy to work with a team of people sharing a group of repositories. It's similar to Google's repo tool, but a lot less annoying and complicated. It's also a bit like mr, but doesn't attempt to plaster a layer of abstraction over git.
mg does no "magic" whatsoever. It tells you exactly what commands it's running on your repos so you're always on top of what's happening.
Not a lot – some people like them, and they work well in certain situations. That said, we found that:
- Doing a pull on the parent project detaches the heads of all the child projects, which is irritating.
- You can't pin a submodule to a tag or branch, which makes things confusing.
- After every commit on a child, you have to update the parent for other people to "see" the change, which people forget (or can't be bothered) to do.
mg attempts to fix the above without creating too many problems of its own.
Run this:
wget -q -O - https://raw.github.com/georgebashi/mg/master/install-mg.sh | bash
Say you've got a directory structure like this:
project/
project-backend/
project-frontend/
project-common/
libraries/
libAbcde/
libFghij/
Run mg init in the project dir. mg will find all the children and set up the .mg/config file. You might then want to check that file into version control.