gitfolio/utils.js

const path = require('path');
const bluebird = require('bluebird');
const fs = bluebird.promisifyAll(require('fs'));

const outDir = path.resolve(process.env.OUT_DIR || './dist/');
const configPath = path.join(outDir, 'config.json');
const blogPath = path.join(outDir, 'blog.json');

const defaultConfigPath = path.resolve(`${__dirname}/default/config.json`);
const defaultBlogPath = path.resolve(`${__dirname}/default/blog.json`);

/**
 * Tries to read file from out dir,
 * if not present returns default file contents
 */
async function getFileWithDefaults(file, defaultFile) {
    try {
        await fs.accessAsync(file, fs.constants.F_OK);
    } catch (err) {
        const defaultData = await fs.readFileAsync(defaultFile);
        return JSON.parse(defaultData);
    }
    const data = await fs.readFileAsync(file);
    return JSON.parse(data);
}

async function getConfig() {
    return getFileWithDefaults(configPath, defaultConfigPath);
}

async function getBlog() {
    return getFileWithDefaults(blogPath, defaultBlogPath);
}

module.exports = {
    outDir,
    getConfig,
    getBlog,
};