sonic-pi

https://github.com/sonic-pi-net/sonic-pi

C++

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Rugged::Submodule#head_oid

Returns the OID for the submodule in the current +HEAD+ tree or +nil+
if the submodule is not in the +HEAD+.

Source | Google | Stack overflow

Edit

git clone [email protected]:sonic-pi-net/sonic-pi.git
cd sonic-pi
open app/server/ruby/vendor/rugged-1.7.1/ext/rugged/rugged_submodule.c

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-Rugged--Submodule-head_oid-for-pr

# Commit to git
git add app/server/ruby/vendor/rugged-1.7.1/ext/rugged/rugged_submodule.cgit commit -m "better docs for Rugged::Submodule#head_oid"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-Rugged--Submodule-head_oid-for-pr
hub pull-request

# Celebrate!