bundle

#!/bin/bash
# Uses every file in `./.bundle_template/` as a template
# populated with CHANNEL from the argument and writes the
# files to the output_path argument.
#
# This is useful for the jenkins CI to create bundles
# which contain the appropriate charm channel.

usage() { echo "Usage: $0 -n name -o output_path -c channel" 1>&2; exit 1; }

while getopts "n:o:c:" arg; do
    case "${arg}" in
        n)
            name=${OPTARG}
            ;;
        o)
            output=${OPTARG}
            ;;
        c)
            channel=${OPTARG}
            ;;
        *)
            usage
            ;;
    esac
done
shift $((OPTIND-1))

if [ -z "${name}" ] || [ -z "${output}" ] || [ -z "${channel}" ]; then
    usage
fi

echo "Bundle      = '${name}'"
echo "Output Path = '${output}'"
echo "Channel     = '${channel}'"

mkdir -p "${output}"
SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
for f in ${SCRIPT_DIR}/.bundle_template/*; do
    CHANNEL=$channel envsubst < "${f}" > ${output}/$(basename ${f})
done