/**
 * @module nullToEmpty
 * @description Returns the specified value if non-null, otherwise an empty array.
 * @param {Object} input - The object to investigate
 * @returns Object - The specified value if non-null, otherwise an empty array
 * @example {{ readField('jvm', 'files') | nullToEmpty }}
 */
function nullToEmpty(input) {
    let output;
    if (input) {
        output = input;
    } else {
        output = [];
    }

 * @example {{ owners | byPlatform }}
 */
function byPlatform(files) {
    const result = new Map();
    files.forEach(file => {
        const platform = getPlatform(file);
        if (!result.has(platform)) {
            result.set(platform, []);
        }
        result.get(platform).push(file);
    });

    console.log("byPlatform: ");
    [...result.keys()].forEach(platform => {

function resolveCodeowners(mapping, file) {
    let match = mapping
        .slice()
        .reverse()
        .find(x =>
            ignore()
                .add(x.path)
                .ignores(file)
        );
    if (!match) {
        console.log("No codeowner found for: " + file);
        return ['No owner'];
    }
    return match.owners;
}

module.exports = {
    async: true,