env

AWS_DIR=~/.aws

# for JAVA
if ! which java > /dev/null || [ "$JAVA_HOME" = "" ]
then
	for x in /usr/local/java /usr/java/default /usr/lib/jvm/java-6-openjdk /usr/lib/jvm/jre /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home /cygdrive/c/java/
	do
		if [ -d $x ]
		then
			export JAVA_HOME=$x
			export PATH=$JAVA_HOME/bin:$PATH
			break
		fi
	done
fi

# change credential with 'key NAME' command (which will use ~/.aws/keys-NAME/)
function key
{
	if [ "$1" = "" ] 
	then
		cd $AWS_DIR
		echo "<key list>"
		echo keys-*
		cd - > /dev/null
		echo 
		echo "type 'key <NEW_KEY_NAME>' to create a new user."
		return 
	fi
	keydir=$AWS_DIR/keys-$1
	if [ -d $keydir ]
	then
		source $keydir/env && echo using keys-$1
	else
		echo $keydir does not exist. 
		echo -n "input AWSAccessKeyId : "
		read accesskey
		echo -n "input AWSSecretKey : "
		read secretkey
		cp -r $AWS_DIR/keys $keydir
		cat <<EOF > $keydir/credential
AWSAccessKeyId=$accesskey
AWSSecretKey=$secretkey
EOF
		source $keydir/env && echo using keys-$1
	fi
}

# change region with 'region REGION_API_NAME' 
function region
{
	target=$1
	if [ "$target" = "" ]
	then
		if [ "$EC2_REGION" = "" ]
		then
			echo "currently region is not set (us-east-1 will be used by default)"
		else
			echo currently region is set to $EC2_REGION
		fi
		echo "usage: region <region>"
		echo available regions are:
		ec2-describe-regions | awk '{print "region "$2}'
	else
		export AWS_REGION=$target
		export EC2_REGION=$target
		export EC2_URL=https://ec2.$target.amazonaws.com
		export ELASTICBEANSTALK_URL=https://elasticbeanstalk.$target.amazonaws.com
		echo API endpoint changed to $target
	fi
}
# region alias
alias use="region us-east-1"
alias usw="region us-west-1"
alias usw2="region us-west-2"
alias euw="region eu-west-1"
alias aps="region ap-southeast-1"
alias aps2="region ap-southeast-2"
alias apn="region ap-northeast-1"

# permission is important
chmod 600 $AWS_DIR/keys*/{credential*,s3cfg} &> /dev/null

# for AWS tool HOMEs
if [ "$AWSENV" = "" ] # do not add path more than once
then
	cd $AWS_DIR
	for x in *_HOME
	do 
		export $x=$AWS_DIR/$x
	done
	cd - > /dev/null

	for x in $AWS_DIR/*/bin
	do
		export PATH=$x:$PATH
	done
fi

# to judge multiple load
export AWSENV=LOADED