Automatically manipulate .gitmodules so Travis CI pulls submodules from public URL instead of SSH URL.

gistfile1.txt

#
# I use SSH URLs in my submodules for convenience. However, Travis CI is unable to
# clone from those URLs even though the repositories are public. To fix this, I'm
# simply manipulating the .gitmodules file with sed so it points to the public
# URLs before initializing the submodules.
#
# Hope it saves you some frustration!
#

# disable the default submodule logic
git:
  submodules: false

# use sed to replace the SSH URL with the public URL, then init and update submodules
before_install:
 - sed -i 's/[email protected]:/git:\/\/github.com\//' .gitmodules
 - git submodule update --init --recursive

disable the default submodule logic

git:
submodules: false
How to disable this??????????????

Still helpful for me a decade later :-) thanks! (i used https instead of git, fwiw, because i think github retired bare git URLs)