index.js

const jsonfile = require('jsonfile');
const moment = require('moment');
const simpleGit = require('simple-git');
const random = require('random');

const COMMIT_COUNTS = 1000;

const FILE_PATH = './data.json';
const makeCommit = (n) => {
    if (n == 0) return simpleGit().push()
    const x = random.int(0, 54);
    const y = random.int(0, 6);
    const DATE = moment().subtract(1, 'y').add(1, 'd').add(x, 'w').add(y, 'd').format();
    const JSON_DATA = {
        date: DATE
    }
    console.log(DATE);
    jsonfile.writeFile(FILE_PATH, JSON_DATA, () => {
        simpleGit().add([FILE_PATH]).commit(DATE, { '--date': DATE }, makeCommit.bind(this, --n));
    });    
}
makeCommit(COMMIT_COUNTS);