pure git alias to checkout a PR when you don't have access to the branch's origin

.gitconfig

[alias]
  copr = !sh -c 'git fetch origin pull/$1/head:pr-$1 && git checkout pr-$1' -

README.md

"checkout pull request" alias (git copr)

"checkout pull request"

Helpful when you have a GitHub repository that is collaborative where the development workflow stipulates that branch sources for merge/pull requests must come from a fork, and you don't have access to that forked repository and/or its branches.

Will check out a copy of the pull request commit into a branch called pr-${PR_NUMBER}.

For pull request #69

git copr 69

Why not just use gh?

Because this the easier way.