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git

Warm-Up

  • how to start a repo from scratch?
    • git init local method
    • on GitHub git clone and either git push --force or git pull methods
  • how to revert mistakes?
    • git revert vs. …
    • git reset vs. …
    • git reset --hard vs. …
    • git restore
  • how to go to a specific point in history?
    • git checkout SHA ⟶ DETACHED HEAD problem
    • interaction with branches
  • git gui: building commits along the way interactively (for the mess around type of workflows)

The Open Source model

  • remotes: pull, push, fetch, merge
  • GitHub: forks, branches and PRs
  • strategies for keeping your fork up-to-date: your master and upstream's master, short-lived and long-lived topic branches
  • a more thorough and deailed explanation can be found on the Numpy Contributor's Guide. This guide can be adapted to your own needs, see gitwash.

Installing Git GUI

If you encounter something like git gui is not a git command then probably Git GUI isn't installed yet. You can add it to your Git installation in the following ways:

macOS

# If this command outputs something with "AppleGit" you have a slimmed down version of Git
git --version
# In that case, continue with the following commands

# 1. Download the official installer from https://git-scm.com/download/mac and install it
...

# 2. Create an alias in .bash_profile
# Add a line "alias git='/usr/local/git/bin/git'" (without the ""), then save and exit
nano ~/.bash_profile

# 3. Activate the current configuration
source ~/.bash_profile

# 4. Test the change
git gui

Ubuntu

# Use the following command to add Git GUI to your installation
sudo apt install git-gui

# If you do a fresh Git install, you could also use this command to get everything at once
sudo apt install git-all