"submodules" in git: braid or subtree or something else

Question

To include several external git repositories in my "main" repository, there are several options:

• Submodules
• braid
• under the tree

The first, apparently, is advised basically by everyone. The second and third, I believe, are implementations of the subtree template.

Is it better? What should i use? What for? How can I choose between them?

Answer 1

• submodule works great:

  • refers to the specific execution of another repo (the true equivalent of svn external with explicit revision numbers),
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