#!/bin/sh
# buildoe -- build openembedded via ec2

usage() {
        echo "Usage: buildoe INSTANCETYPE" 1>&2
        exit 1
}

if test -z "$1"; then
        usage
fi

if ! ssh-add -l | grep -q ' id_dsa_ec2 '; then
        echo "Adding the EC2 SSH key."
        ssh-add ~/id_dsa_ec2
fi

if test -z "$JAVA_HOME"; then
        source ~/ec2.sh
fi

case "$1" in
        m1.small|c1.medium)
                image=ami-bb709dd2
                ;;
        *)
                image=ami-55739e3c
                ;;
esac


# Ubuntu 9.10 server amd64: ami-55739e3c
# Ubuntu 9.10 server i386: ami-bb709dd2
echo -n 'Starting instance...'
instancerequest="`ec2-request-spot-instances "$image" -z us-east-1a -r one-time -p 1.00 -k id_dsa_ec2 -t "$1" | awk '/^SPOTINSTANCEREQUEST/ { print $2 }'`"
while true; do 
        instance="`ec2-describe-spot-instance-requests "$instancerequest" | awk '/^SPOTINSTANCEREQUEST/ { print $8; exit 0; }'`"
        if test "$?" -ne 0; then
                exit 1
        fi
        if echo "$instance" | grep '^i-........$'; then
                break
        fi
        echo -n '.'
done
#instance="`ec2run "$image" -k id_dsa_ec2 -z us-east-1a -t "$1" | awk '/^INSTANCE/ { print $2 }'`"
while true; do 
        addr="`ec2din $instance | awk '/^INSTANCE/ { if($4 != "terminated" && $4 != "pending") { print $4; exit 0; } }'`"
        if test "$?" -ne 0; then
                exit 1
        fi
        if test 'xpending' != "x$addr"; then
                break
        fi
        sleep 10
        echo -n '!'
done
ec2-attach-volume vol-3d13bf54 -i $instance -d /dev/sdf
ssh -o 'StrictHostKeyChecking no' -fN ubuntu@$addr 
if test "$?" -ne 0; then
        exit 1
fi
cat <<"EOF" | ssh ubuntu@$addr 'cat > buildit.sh'
sudo apt-get update -y
if test `uname -m` != x86_64; then
        psyco="python-psyco"
else
        psyco=""
fi
sudo modprobe dm_mod
sudo apt-get -y install git-core subversion gcc build-essential diffstat texinfo help2man texi2html gawk chrpath lvm2 $psyco
echo 'Yes, do as I say!' | sudo apt-get install xz-utils
sudo ln -fs /bin/bash /bin/sh
mkdir ~/overo-oe
sudo mount /dev/sda2 ~/overo-oe
#sudo mount /dev/mapper/storageVG-storageFS ~/overo-oe
cd ~/overo-oe
sudo chmod 777 ~/overo-oe
#sudo lvchange -a y /dev/storageVG/storageFS
git clone git://gitorious.org/gumstix-oe/mainline.git org.openembedded.dev
cd org.openembedded.dev
git checkout --track -b overo origin/overo
cd ~/overo-oe
git clone git://git.openembedded.net/bitbake bitbake
cd bitbake
git checkout 1.8.18
cd ~/overo-oe
cp -r org.openembedded.dev/contrib/gumstix/build .
. ~/overo-oe/build/profile
# 84 is _SC_NPROCESSORS_ONLN
NCPU=`python -c 'import ctypes; print ctypes.cdll.LoadLibrary("libc.so.6").sysconf(84)'`
echo PARALLEL_MAKE = \"-j $NCPU\" >> ~/overo-oe/build/conf/site.conf
echo BB_NUMBER_THREADS = \"$NCPU\" >> ~/overo-oe/build/conf/site.conf
bitbake omap3-console-image
EOF 
ssh ubuntu@$addr 'screen -dmS build ; screen -r build -X exec echo /usr/bin/time sh ~/buildit.sh' 


# source this to set up environment for EC2 tools
export EC2_PRIVATE_KEY=~/Downloads/pk-XXX.pem 
export EC2_PRIVATE_KEY=~/Downloads/pk-XXX.pem 
export EC2_CERT=~/Downloads/cert-XXX.pem 
export JAVA_HOME=/Library/Java/Home
export EC2_HOME=~/Downloads/ec2-api-tools-1.3-46266
export PATH=$PATH:$EC2_HOME/bin