rc.js

import { RC, DEFAULTS } from './constants';
import { decode, encode } from 'ini';
import { promisify } from 'util';
import chalk from 'chalk';
import fs from 'fs';

const exits = promisify(fs.exists);
const readFile = promisify(fs.readFile);
const writeFile = promisify(fs.writeFile);

//RC 是配置文件
//DEFAULTS 是默认的配置
export const get = async (key) => {
    const exit = await exits(RC);
    let opts;
    if (exit) {
        opts = await readFile(RC, 'utf8');
        opts = decode(opts);
        return opts[key];
    }
    return '';
}

export const getAll = async () => {
    const exit = await exits(RC);
    let opts;
    if (exit) {
        opts = await readFile(RC, 'utf8');
        opts = decode(opts);
        return opts;
    }
    return {};
}

export const set = async (key, value) => {
    const exit = await exits(RC);
    let opts;
    if (exit) {
        opts = await readFile(RC, 'utf8');
        opts = decode(opts);
        if(!key) {
            console.log(chalk.red(chalk.bold('Error:')), chalk.red('key is required'));
            return;
        }
        if(!value) {
            console.log(chalk.red(chalk.bold('Error:')), chalk.red('value is required'));
            return;
        }
        Object.assign(opts, { [key]: value });
    } else {
        opts = Object.assign(DEFAULTS, { [key]: value });
    }
    await writeFile(RC, encode(opts), 'utf8');
}

export const remove = async (key) => {
    const exit = await exits(RC);
    let opts;
    if (exit) {
        opts = await readFile(RC, 'utf8');
        opts = decode(opts);
        delete opts[key];
        await writeFile(RC, encode(opts), 'utf8');
    }
}