mj-script/cli/tools/files.js

企业级脚手架

const fs = require('fs');
const path = require('path');
const fsE = require('fs-extra');

const copyFile = (currentPath, toPath) => {
    return new Promise((resolve, reject) => {
        fsE.copy(currentPath, toPath, err => {
            if (err) reject(err);
            resolve();
        })
    })
}

const writeFile = (url, data) => {
    return new Promise((resolve, reject) => {
        fs.writeFile(url, data, err => {
            if (err) reject(err)
            resolve();
        })
    })
}

const mkdir = (path) => {
    return new Promise((resolve, reject) => {
        fs.mkdir(path, { recursive: true }, err => {
            if (err) reject(err);
            resolve();
        })
    })
}

const emptyDir = (path) => {
    return fsE.emptyDir(path);
}

const getDirNameByPath = (path) => {
    let currentDirNameArr = path.split('/');
    if (~path.indexOf('\\')) {
        currentDirNameArr = path.split('\\');
    }
    return currentDirNameArr[currentDirNameArr.length - 1];
}

const hasPath = (path) => {
    return fsE.pathExists(path);
}

const readFilesStream = (path) => {
    return new Promise((resolve, reject) => {
        const stream = fs.createReadStream(path);
        let data = '';
        stream.on('data', (chunk) => {
            data += chunk;
        })
        stream.on('end', (err) => {
            if (err) reject(err)
            resolve(data);
        })
    })
}

module.exports = {
    copyFile,
    writeFile,
    mkdir,
    emptyDir,
    getDirNameByPath,
    hasPath,
    readFilesStream
}