* @example {{ readField('jvm', 'files') | nullToEmpty }}
 */
function nullToEmpty(input) {
    let output;
    if (input) {
        output = input;
    } else {
        output = [];
    }
    console.log("nullToEmpty: " + output);
    return output;
}

            if (files.includes(fileMetadata.file)) {
                result.get(platform).files.push(fileMetadata.file);
            }
        });
    });

    console.log("categorize: ");
    console.log([...result.values()]);
    return result;
}

        summary.filesPercent = Math.round(summary.files.length / totalChangedFiles * 100, 2);
    });

    console.log("computeStatistics: ");
    console.log(summaries)
    return summaries;
}

function metadataFor(fileMetadatas, file) {
    return fileMetadatas.find(fileMetadata => fileMetadata.file == file);
}

            <td>${summary.filesPercent}%</td>
        </tr>`;
    });

    result += `</table>
        </details>
        <automation id="summary_table/summary_table"/>`;

    console.log("summaryTable: " + result);
    return result;
}

function platformsAffected(statistics) {
    // Significance is defined as a platform having more than 10% of the total lines changed

        console.log("Finished codeowners mapping: " + mapping);

        const result = new Map()
        files.map(f => {
            console.log("Resolving owners for: " + f);
            const owners = resolveCodeowners(mapping, f);
            console.log("Owners for: " + f + " are: " + owners);
            owners.filter(i => typeof i === 'string')
                .map(u => u.replace(/^@gradle\//, ""))

        if (!result.has(platform)) {
            result.set(platform, []);
        }
        result.get(platform).push(file);
    });

    console.log("byPlatform: ");
    [...result.keys()].forEach(platform => {
        console.log("[" + platform + ": [" + result.get(platform).join(", ") + "]]");
    });
    return result;
}

function getPlatform(file) {

            throw "readField: field '" + fieldName + "' not found on object named '" + objectName + "' with fields '" + Object.keys(group) + "'";
        } else {
            return result;
        }
    } else {
        console.log("readField: named object with field not found '" + objectName + '.' + fieldName + "'");
        return null;
    }
}