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* Pipe stdout and stderr from child_process to main process 

* code refactoring and using promises
This commit is contained in:
PlayMa256 2018-02-08 14:01:23 -02:00 committed by Tobias Koppers
parent 18773b133a
commit f7af10a0e1
1 changed files with 44 additions and 21 deletions
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65
bin/webpack.js
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@ -1,17 +1,19 @@
#!/usr/bin/env node
const { exec, execSync } = require("child_process");
const inquirer = require("inquirer");
function runCommand(command, options) {
const cp = require("child_process");
return new Promise((resolve, reject) => {
const executedCommand = cp.spawn(command, options, {
stdio: "inherit"
});
executedCommand.on("error", error => {
executedCommand.on("error", (error) => {
reject(error);
});
executedCommand.on("exit", code => {
if (code === 0) {
executedCommand.on("exit", (code) => {
if(code === 0) {
resolve(true);
} else {
reject();
@ -21,24 +23,38 @@ function runCommand(command, options) {
}
let webpackCliInstalled = false;
// try {
// const blah = require("webpack-cli"); // eslint-disable-line node/no-missing-require, node/no-extraneous-require, node/no-unpublished-require
// webpackCliInstalled = true;
// } catch(e) {
// console.log("error", e);
// webpackCliInstalled = false;
// }
try {
require.resolve("webpack-cli");
execSync("node -e require.resolve('webpack-cli')", { stdio: "ignore" });
webpackCliInstalled = true;
} catch (err) {
webpackCliInstalled = false;
}
if (!webpackCliInstalled) {
if(webpackCliInstalled) {
require("webpack-cli"); // eslint-disable-line node/no-missing-require, node/no-extraneous-require, node/no-unpublished-require
} else {
const path = require("path");
const fs = require("fs");
const inquirer = require("inquirer");
const isYarn = fs.existsSync(path.resolve(process.cwd(), "yarn.lock"));
let command;
const packageManager = isYarn ? "yarn" : "npm";
const options = ["install", "-D", "webpack-cli"];
if (isYarn) {
options[0] = "add";
let packageManager;
let options = [];
if(isYarn) {
packageManager = "yarn";
options = ["add", "-D", "webpack-cli"];
} else {
packageManager = "npm";
options = ["install", "--save-dev", "webpack-cli"];
}
const commandToBeRun = `${packageManager} ${options.join(" ")}`;
@ -46,19 +62,25 @@ if (!webpackCliInstalled) {
const question = {
type: "confirm",
name: "shouldInstall",
message: `Would you like to install webpack-cli? (That will run ${
commandToBeRun
})`,
message: `Would you like to install webpack-cli? (That will run ${commandToBeRun})`,
default: true
};
console.error("The CLI moved into a separate package: webpack-cli");
inquirer.prompt(question).then(answer => {
if (answer) {
if(isYarn) {
command = "yarn add webpack-cli -D";
} else {
command = "npm install --save-dev webpack-cli";
}
console.error("The CLI moved into a separate package: webpack-cli.\n");
inquirer.prompt(question).then((answer) => {
if(answer) {
console.error("Installing webpack-cli");
runCommand(packageManager, options)
.then(result => require("webpack-cli")) // eslint-disable-line
.catch(error => console.error(error));
runCommand(packageManager, options).then((result) => {
require("webpack-cli"); // eslint-disable-line
}).catch((error) => {
console.error(error);
});
} else {
process.exitCode(1);
}
@ -66,3 +88,4 @@ if (!webpackCliInstalled) {
} else {
require("webpack-cli"); // eslint-disable-line
}