Moving to GitLab from GitHub (as remotes in POSIX environment)

Question

I'm migrating to GitLab. I need to edit all the .git/config files on my workstations which contain "github" and replace that word with "gitlab". I suspect that this can be done most easily with a single find command, rather than using a git call in each folder.

I think it would be something like:

find ./ -name ".git/config" -type f -exec sed -i 's/github/gitlab/gI' {} \;

Is this a safe/reasonable approach? What is the best way to do this?

Edit/Update: Comment: I actually do not want to do that for all github repos, since it is only the ones I control which are moving. I haven't revised my question, but the accepted answer includes a version to target only one github account. And my own answer below most literally accomplishes the goal of changing every file.

Answer 1

You don't have to, you can use a single rule with an insteadOf directive.

git config --global url."https://gitlab.com/".insteadOf "https://github.com/"
git config --global url."[email protected]:".insteadOf "[email protected]:"

Then, any git push/pull/clone using a github.com URL would use gitlab.com instead.

The OP CPBL mentions in the comments:

So as not to change other GitHub packages I use, the following works for me:

git config --global url."[email protected]:cpbl".insteadOf "[email protected]:cpbl"
git config --global url."[email protected]/cpbl".insteadOf "[email protected]/cpbl"