git remote prune origin
git branch --merged | egrep -v "(^\*|master|dev)" | xargs git branch -d
git gc
git log --left-right --graph --cherry-pick --oneline production/master...master
git push origin :branchName
git push origin :refs/tags/tagName
git remote prune origin
git branch --merged | egrep -v "(^\*|master|dev)" | xargs git branch -d
git gc
git log --left-right --graph --cherry-pick --oneline production/master...master
git push origin :branchName
git push origin :refs/tags/tagName