export-aws-creds.sh

#!/bin/sh

set -e

CREDENTIAL_FILE=~/.aws-creds
PROFILE_NAME=${1:-"default"}

SECTION=$(grep -A 3 "\[${PROFILE_NAME}\]" ${CREDENTIAL_FILE})
CREDENTIAL_LINES=$(echo "$SECTION" |
    grep "^\(aws_access_key_id\|aws_secret_access_key\|region\)=")
EXPORT_LINES=$(echo "$CREDENTIAL_LINES" |
    sed 's/aws_access_key_id=/export AWS_ACCESS_KEY_ID=/' |
    sed 's/aws_secret_access_key=/export AWS_SECRET_ACCESS_KEY=/' |
    sed 's/region=/export AWS_DEFAULT_REGION=/')

if [ `echo "$EXPORT_LINES" | wc -l` != "3" ]; then
    echo "Unable to find profile ${PROFILE_NAME} in ${CREDENTIAL_FILE}" 1>&2
    exit 1
fi

echo "$EXPORT_LINES"