149 lines
3.5 KiB
JavaScript
Executable File
149 lines
3.5 KiB
JavaScript
Executable File
#!/usr/bin/env node
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/**
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* @param {string} command process to run
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* @param {string[]} args command line arguments
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* @returns {Promise<void>} promise
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*/
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const runCommand = (command, args) => {
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const cp = require("child_process");
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return new Promise((resolve, reject) => {
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const executedCommand = cp.spawn(command, args, {
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stdio: "inherit",
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shell: true
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});
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executedCommand.on("error", error => {
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reject(error);
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});
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executedCommand.on("exit", code => {
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if (code === 0) {
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resolve();
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} else {
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reject();
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}
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});
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});
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};
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/**
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* @param {string} packageName name of the package
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* @returns {boolean} is the package installed?
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*/
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const isInstalled = packageName => {
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try {
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require.resolve(packageName);
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return true;
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} catch (err) {
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return false;
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}
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};
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/**
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* @param {CliOption} cli options
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* @returns {void}
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*/
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const runCli = cli => {
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const path = require("path");
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const pkgPath = require.resolve(`${cli.package}/package.json`);
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// eslint-disable-next-line node/no-missing-require
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const pkg = require(pkgPath);
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// eslint-disable-next-line node/no-missing-require
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require(path.resolve(path.dirname(pkgPath), pkg.bin[cli.binName]));
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};
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/**
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* @typedef {Object} CliOption
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* @property {string} name display name
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* @property {string} package npm package name
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* @property {string} binName name of the executable file
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* @property {boolean} installed currently installed?
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* @property {string} url homepage
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*/
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/** @type {CliOption} */
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const cli = {
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name: "webpack-cli",
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package: "webpack-cli",
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binName: "webpack-cli",
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installed: isInstalled("webpack-cli"),
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url: "https://github.com/webpack/webpack-cli"
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};
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if (!cli.installed) {
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const path = require("path");
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const fs = require("graceful-fs");
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const readLine = require("readline");
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const notify =
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"CLI for webpack must be installed.\n" + ` ${cli.name} (${cli.url})\n`;
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console.error(notify);
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let packageManager;
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if (fs.existsSync(path.resolve(process.cwd(), "yarn.lock"))) {
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packageManager = "yarn";
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} else if (fs.existsSync(path.resolve(process.cwd(), "pnpm-lock.yaml"))) {
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packageManager = "pnpm";
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} else {
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packageManager = "npm";
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}
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const installOptions = [packageManager === "yarn" ? "add" : "install", "-D"];
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console.error(
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`We will use "${packageManager}" to install the CLI via "${packageManager} ${installOptions.join(
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" "
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)} ${cli.package}".`
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);
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const question = `Do you want to install 'webpack-cli' (yes/no): `;
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const questionInterface = readLine.createInterface({
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input: process.stdin,
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output: process.stderr
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});
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// In certain scenarios (e.g. when STDIN is not in terminal mode), the callback function will not be
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// executed. Setting the exit code here to ensure the script exits correctly in those cases. The callback
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// function is responsible for clearing the exit code if the user wishes to install webpack-cli.
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process.exitCode = 1;
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questionInterface.question(question, answer => {
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questionInterface.close();
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const normalizedAnswer = answer.toLowerCase().startsWith("y");
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if (!normalizedAnswer) {
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console.error(
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"You need to install 'webpack-cli' to use webpack via CLI.\n" +
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"You can also install the CLI manually."
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);
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return;
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}
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process.exitCode = 0;
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console.log(
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`Installing '${
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cli.package
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}' (running '${packageManager} ${installOptions.join(" ")} ${
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cli.package
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}')...`
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);
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runCommand(packageManager, installOptions.concat(cli.package))
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.then(() => {
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runCli(cli);
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})
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.catch(error => {
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console.error(error);
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process.exitCode = 1;
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});
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});
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} else {
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runCli(cli);
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}
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