aureooms/rejuvenate

import update from '../lib/update.js';
import stringify from '../lib/json/stringify.js';
import parse from '../lib/json/parse.js';

const filename = '.esdoc.json';
export const description = 'Format file.';

export const commit = {
    scope: filename,
    subject: description,
};

const format = (text) => stringify(parse(text)) + '\n';

export async function postcondition({read, assert}) {
    const text = await read(filename);
    assert(text === format(text));
}

export async function precondition({read, assert}) {
    const text = await read(filename);
    assert(text !== format(text));
}

export async function apply({read, write}) {
    await update({
        read: () => read(filename),
        write: (text) => write(filename, text),
        edit: (text) => format(text),
    });
}