GitHub CLI Extension - Setup Git Credential Helper

When you fork a repo the default GITHUB_TOKEN has limited permissions that doesn't allow you to do common things like add secrets and doesn't allow you to use the GitHub CLI as a gitcredential helper.

This extension solves all of that for you.

It will:

Clear the GITHUB_TOKEN variable, so gh auth login won't complain that it already has a value.
Call gh auth login
Set gh auth git-credentials as your gitcredentials helper.

The full context for this extension can be found here: https://blog.jongallant.com/2021/06/codespaces-gh-cli-git-credentials/

Here are the related GitHub issues:

Installation

Install GitHub CLI v2.0+
Run gh extension install jongio/gh-setup-git-credential-helper

Run

Run gh setup-git-credential-helper from within your Codespace or DevContainer
You will see "Successfully added 'gh auth git-credential' as your git credential helper." if it succeeded. Please file an issue if you have any problems.

Uninstall

Run gh extension remove gh-setup-git-credential-helper

Install in DevContainer

See the code in this repo in /.devcontainer to see how to add this to your devcontainer

Copy the github-debian.sh script to library-scripts

Add the install command to your Dockerfile

RUN apt-get update && export DEBIAN_FRONTEND=noninteractive && bash /tmp/library-scripts/github-debian.sh

Manually run gh setup-git-credential-helper when your container starts.

Error Messages

Including the following error messages for SEO - this extension should fix all of these issues.

failed to fetch public key: 
HTTP 403: Resource not accessible by integration

The value of the GITHUB_TOKEN environment variable is being used for authentication.
To have GitHub CLI store credentials instead, first clear the value from the environment.

git push --set-upstream origin env-dev5
remote: Invalid username or password.
fatal: Authentication failed for 'https://github.com/jongio/golang-sample-app/'