#!/bin/bash
 
 set -e
 
 if ! git diff-index --quiet HEAD -- || test $(git ls-files --exclude-standard --others | wc -l) != 0; then
   echo "You can't have any staged files in git when updating packages."
   echo "Either commit them or unstage them to continue."
   exit 1
 fi
 
 echo "This command will update Origin with the latest stable_proposed branch or tag"
 echo "in your OpenShift fork of Kubernetes."
 echo
 echo "This command is destructive and will alter the contents of your GOPATH projects"

 echo

 echo "Hit ENTER to continue or CTRL+C to cancel"
 read
 

 export GOOS=linux
 
 echo "Restoring Origin dependencies ..."
 make clean
 godep restore
 git fetch --tags
 

 pushd $GOPATH/src/k8s.io/kubernetes > /dev/null

 echo "Fetching latest ..."
 git fetch

 git fetch --tags

 popd > /dev/null
 

 pushd $GOPATH/src/k8s.io/kubernetes > /dev/null

 git checkout stable_proposed
 echo "Restoring any newer Kubernetes dependencies ..."

 rm -rf _output

 godep restore
 popd > /dev/null
 

 echo "Restore complete, update any packages which must diverge from Kubernetes now"
 echo
 echo "Hit ENTER to continue"
 read

 
 echo "Clearing old versions ..."
 git rm -r Godeps
 
 echo "Saving dependencies ..."
 if ! godep save ./... ; then
   echo "ERROR: Unable to save new dependencies. If packages are listed as not found, try fetching them via 'go get'"
   exit 1
 fi
 git add .
 echo "SUCCESS: Added all new dependencies, review Godeps/Godeps.json"

 echo "  To check upstreams, run: git log -E --grep=\"^UPSTREAM:|^bump\" --oneline"