Git remove some dirs

erase-git.sh

# Analyze
git ls-tree -r -t -l --full-name HEAD | sort -n -k 4

# Delete
#git filter-branch --index-filter 'git rm -r --cached --ignore-unmatch dir1' HEAD
git filter-branch --tree-filter 'rm -rf dir1' --prune-empty --tag-name-filter cat -- --all

# Cleanup
#git update-ref -d refs/original/refs/heads/master
#git show-ref refs/original/* --hash | xargs -n 1 git update-ref -d
git for-each-ref --format="%(refname)" refs/original/ | xargs -n 1 git update-ref -d