Some things to clear up:
: The R words: Rebase, Revert, Rollback.
: The difference between Fetch, Pull and Rebase.
- Rebase is actually a merge, I just happen to use it to integrate the newest origin/8.x into my local branch. Merge is a three way merge, rebase pulls in commits from another branch, rewinds your current branch and replays all the changes sequentially to get you back to your current commit with the other branch merged in. Mostly this makes things neater and erases the history of the working branch, making it look like you've been on the master branch the whole time. Easier to merge into the remote later, too.
- Revert means to undo a specific commit without deleting it from the commit history.
- Roll back, on the other hand, is resetting HEAD to the commit you've chosen to roll back to. This deletes any newer commits entirely, taking you back in time permanently. I think what Git Tower calls Roll Back is
git reset <commit>?
- Git Fetch only fetches an update from your designated remote.
- Git Pull pulls that update down and merges it into your current branch.
My previous questions about Git were things like: how do I use it to track a site in production? I was thinking I would install it remotely on my host and update there. I think I should work on the site locally and then push up to my server. Haven't actually looked into that yet. This handy dandy bit of documentation on d.o (Drupal.org, I have gathered) should have plenty of info on Drupal web dev with Git. The most difficult things there will be handling the databases and figuring out why I need development, staging and production sites all up at once. I don't think I'm understanding the latter properly.
Then later, for fun, I'll poke around a local install of D8! whee! If I could figure out local hosting well enough I'd broadcast my experiments publicly using my handy-dandy built-in Apache server... but that honestly is a total side-trip that I shouldn't take right this moment.
TDL! Finish configuring local hosting capabilities outside of MAMP and figuring out site-serving capabilities. Also read more "history of the internet/web" books, because it fascinates me. Also find those studies referenced in Tim Berners-Lee's book regarding emergent properties of the www.