hack

#!/bin/sh -x
git checkout master
git pull origin master
git checkout -b $1 master

ship

#!/bin/sh -x
CURRENT=`git branch | grep "*" | awk '{print $2}'`
git checkout master
git merge --squash ${CURRENT} && git commit -a -v && git push origin master

sink

#!/bin/sh -x
CURRENT=`git branch | grep "*" | awk '{print $2}'`
git checkout master
git pull origin master
git checkout ${CURRENT}
git rebase master ${CURRENT}