Commit a file to a Different Branch Without Checkout

Question

Is it possible to commit a file in a git branch with out checking out that branch? If so how?

Essentially I want to be able to save a file in my github pages branch

Answer 1

It can be done by reimplementing git commit.

This can be done with various call to git hash-object

But this is hard to achieve.

Please read progit chapter 9 for more details and a full example of how to simulate a commit.