Remove directory from git history

script.sh

# unashamed copied from https://stackoverflow.com/a/17824718

RELATIVE_DIRECTORY="node_modules"

git filter-branch --tree-filter "rm -rf ${RELATIVE_DIRECTORY}" --prune-empty HEAD
git for-each-ref --format="%(refname)" refs/original/ | xargs -n 1 git update-ref -d
echo "${RELATIVE_DIRECTORY}/ >> .gitignore
git add .gitignore
git commit -m "Removing ${RELATIVE_DIRECTORY} from git history"
git gc