a script for updating OpenStack sources of devstack

update-stack.sh

#!/bin/bash

STACK_DIR=/opt/stack
COMPONENTS=`cd ${STACK_DIR}; ls -1`
echo $COMPONENTS

for component in ${COMPONENTS}
do
        echo ============ $component ===============
        cd ${STACK_DIR}/$component
        pwd
        if [ ! -d .git ]; then
                continue
        fi
        git status
        git checkout master
        git checkout .
        git pull
        cd ..
        echo
done