linuxexpert-practice-labs/labs/lfcs/4-1-git/README.md

LFCS 4.1: Basic Git operations

Cloning, branching, merging, undoing a commit, ignoring files and tagging, against a shared repository on the same VM.

Before you start

The lab creates a bare repository at /srv/git/app.git with some history: app.conf, a README.md, a committed debug.log, and a branch feature/workers. Work as root, and clone it to /root/app; the lab grades that clone and the repository in /srv/git. Set your name and email in Git first.

Tasks

1. Clone /srv/git/app.git to /root/app, create a branch feature/motd, commit a new file on it, and push the branch.
2. On main, change the workers line in app.conf to a different value than feature/workers uses, commit it, then merge feature/workers into main and resolve the conflict.
3. Find the commit that last changed the timeout line in app.conf, and undo that commit on main without rewriting history.
4. Make Git ignore all .log files, stop tracking debug.log without deleting it from disk, and commit the change on main.
5. Tag the current commit of main as v1.0 with a message, and push the tag.

Hints

• git config --global user.name, git clone, git switch -c, git push -u origin, git ls-remote origin.
• git merge, then edit the file, git add and git commit; git log --oneline --graph.
• git blame app.conf, git revert.
• .gitignore, git rm --cached.
• git tag -a -m, git push origin v1.0, git ls-remote --tags origin.