如何开发一个cli

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1clear: 清屏
2chalk: 装饰作用，使之终端上的输出加上颜色
3figlet: 将字母转化为字符拼成的文字
4git-pull-or-clone：将代码下载
5inquirer: 在命令行中打出交互式的命令
6ora: 优雅的显示loading效果

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1const { resolve } = require("path");
2const fs = require("fs");
3const { promisify } = require("util");
4const chalk = require("chalk");
5const inquirer = require("inquirer");
6const figlet = require("figlet");
7const clear = require("clear");
8const ora = require("ora");
9const download = promisify(require("git-pull-or-clone"));
10const { spawn, log } = require("./utils");
11
12//仓库地址
13const repo = "git@github.com:yuanguandong/react-keyevent.git";
14
15//清屏
16clear();
17//打印logo
18log(
19  figlet.textSync("WIDGET", {
20    horizontalLayout: "fitted",
21    verticalLayout: "default",
22    width: 80,
23    whitespaceBreak: true,
24  }),
25  "green"
26);
27
28//主流程
29const main = async () => {
30  // 项⽬名称
31  const answer = await inquirer.prompt([
32    {
33      type: "input",
34      message: "DirName:",
35      name: "name",
36      default: "widgets", // 默认值
37    },
38  ]);
39  const dir = resolve(`./${answer.name}`);
40  const process = ora(chalk["gray"](`${dir} loading.....`));
41  process.start();
42  try {
43    await download(repo, dir);
44    process.succeed();
45    log(`✅ Download Success`);
46  } catch (e) {
47    log(e, "red");
48    process.fail();
49  }
50  tool(answer.name, dir);
51};
52
53//工具方法
54const actions = {
55  install: async ({ dir, name }) => {
56    log("installing....", "gray");
57    await spawn("pnpm", ["install"], { cwd: `${name}/` });
58    log("✅ Installed");
59  },
60  run: async ({ dir, name }) => {
61    const isFile = fs.existsSync(`${dir}/node_modules`);
62    if (isFile) {
63      const res = await spawn("pnpm", ["run", "test"], { cwd: `${name}/` });
64      return;
65    } else {
66      log("Not Installed", "red");
67    }
68  },
69  exit: async ({ dir, name }) => {
70    const isFile = fs.existsSync(`${dir}/node_modules`);
71    if (isFile) {
72      log("🖐  Bye Bye!", "yellow");
73    }
74    return;
75  },
76};
77
78//工具箱
79async function tool(name, dir) {
80  const answer = await inquirer.prompt([
81    {
82      type: "rawlist",
83      message: "Action",
84      name: "operation",
85      choices: Object.keys(actions),
86    },
87  ]);
88  const res = await actions[answer.operation]({ dir, name });
89  if (!res) {
90    return;
91  }
92  tool(name, dir);
93}
94
95main();
96
97module.exports = { main, tool };

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1const chalk = require("chalk");
2const { spawn: _spawn } = require("child_process");
3
4const spawn = async (...args) => {
5  return new Promise((resolve) => {
6    const proc = _spawn(...args);
7    proc.stdout.pipe(process.stdout);
8    proc.stderr.pipe(process.stderr);
9    proc.on("close", (...restArgs) => {
10      resolve(restArgs);
11    });
12  });
13};
14
15const log = (msg, color = "green", ...arg) =>
16  console.log(chalk[color](msg, arg));
17
18module.exports = { spawn, log };