git notes

Remote over ssh setup

• Create or find a key
  $ ssh-keygen -t ed25519 -C "your_email@example.com"

• May have to start the agent and add the key

  $ eval $(ssh-agent -D)
  # Yes, ssh-agent actually returns environment variables that we want to eval
  $ ssh-add ~/.ssh/id_ed25519
  

• Add public key to github if necessary under authentication

• Check remote from the repo directory
  $ git remote -V

• Fix if necessary
  $ git remote set-url origin git@github.com:USERNAME/REPOSITORY-NAME.git

• Also test connection
  $ ssh -T git@github.com

• To create a repo on my computer and push to existing github repo,

  $ echo "# My New RepoName" >> README.md
  $ git init
  $ git add README.md
  $ git commit -m "first commit"
  $ git branch -M main
  $ git remote add origin https://github.com/techcubus/RepoName.git
  $ git push -u origin main
  

  …or link & push an existing repository

$ git remote add origin https://github.com/techcubus/RepoName.git
$ git branch -M main
$ git push -u origin main

On Windows, running in PowerShell, for me this appeared to hang git without an error as a dialog to pick the authentication method had opened behind other windows.