#!/usr/bin/env bash
#
# Copyright 2020 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Used to generate starlark protojson config output. Expects to be able
# to find the protocol buffer generating script in the directory with the
# config file at config/generate.sh and expects to be able to find the
# lucicfg binary on the path from depot_tools.

readonly script_dir="$(dirname "$(realpath -e "${BASH_SOURCE[0]}")")"
source "${script_dir}/common.sh"

# Exit if any command fails.
set -e
trap "summarize" EXIT

source "${script_dir}/../setup_cipd.sh"

output_dir="."
while [[ $# -gt 0 ]]; do
    case $1 in
        --output-dir|-o)
            output_dir="$2"
            shift
            shift
            ;;
        *)
            break
            ;;
    esac
done

if [[ $# -ne 1 ]]; then
  config_usage
fi

readonly file_path=$1
readonly config_file=$(basename "${file_path}")
readonly config_dir="$(dirname "$(realpath -e "${file_path}")")"

# Hitting some relative links so change to the directory.
cd "${config_dir}"

echo "Formatting .star files with lucicfg fmt..."
lucicfg fmt

# luci requires -config-dir be relative to cwd
lucicfg         \
    generate    \
    -config-dir \
    "$(realpath -m --relative-to="$(pwd)" "${output_dir}/generated")" \
    "${config_file}"