git tricks i always forget

git_tricks.sh

# clone a repo
git clone git@github.com:GitUserOrOrg/repo.git

# create a new branch
git checkout -b rreece/branch1

# set my branch to track the main when i do git pull
git branch --set-upstream-to origin/main

# show branches
git branch

# show branches tracking
git branch -vv

# switch branches
git checkout rreece/branch2

# git commit
git commit -a -m "a commit msg"

# git push to your branch
git push origin rreece/branch2

# make a sub-branch from a branch
git checkout -b rreece/subbranch rreece/branch2

# undo uncomitted changes to a file and get the head version of the current branch
rm -f FILE
git checkout -- FILE

# check for commits that haven't been pushed
git log --branches --not --remotes

# how to merge main with the checked-out branch:
git fetch origin
git merge origin/main
# manually fix CONFLICTS by hand, then commit and push
git commit -a -m "fixes after merge main"
git push origin rreece/branch2

# rebase method of catching up with main
git checkout main
git pull
git checkout rreece/branch
git rebase -i main
# follow directions to pick and squash
git push -f origin rreece/branch

# how to add a submodule
git submodule add https://github.com/rreece/hepplot hepplot
git status
git commit -a -m "add hepplot submodule"
git push origin main

# how to update submodules
git submodule update --init --recursive

# how to permanently delete from git history
# https://dalibornasevic.com/posts/2-permanently-remove-files-and-folders-from-git-repo
# remove dir from main
git filter-branch --tree-filter 'rm -rf GitUserOrOrg/repo/data/' HEAD
# remove badfile from all branches
git filter-branch --force --index-filter 'git rm --cached --ignore-unmatch GitUserOrOrg/repo/data/badfile' --prune-empty --tag-name-filter cat -- --all
# always end with
git push origin main --force

https://stackoverflow.com/questions/33503080/learning-git-tracking-vs-setting-upstream-u-for-remotes

git submodules:
https://gist.github.com/gitaarik/8735255