Git remove some dirs

erase-git.sh

# Fetch
git clone https://github.com/username/reponame reponame
for b in `git branch -r | grep -v -- '->'`; do git branch --track ${b##origin/} $b;

# Analyze
git fat -a find 1000000
git ls-tree -r -t -l --full-name HEAD | sort -n -k 4

# Delete
git filter-branch --subdirectory-filter ios/South/ --prune-empty --tag-name-filter cat -- --all
git filter-branch --tree-filter 'rm -rf Pods' --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
#git reflog expire --expire=now --all
git reflog expire --expire-unreachable=all --all
git gc --aggressive --prune=now