为什么从Shell.js执行时，有效的Shell脚本停止执行？

Question

I've been working on a shell script to automatically set up the directory system for a basic web document, as an attempt to keep my projects a bit more consistently organized. 我一直在研究一个shell脚本，以自动为基本的Web文档设置目录系统，以使我的项目更加一致。

#!/bin/bash

if [ -e $1 ]; then
    echo $1 'already exists!'
    exit
else
    echo 'Generating' $1 '. . .' 
    mkdir $1
    cd $1
    mkdir 'html'
    mkdir 'scripts'
    touch 'scripts/app.js'
    mkdir 'style'
    touch 'style/style.css'
    touch 'index.html'
    echo '<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>

</body>
</html>' > 'index.html'
    read -p 'Do you want a git repo? [Y/N]' response
    if [ $response = 'Y' ] || [ $response = 'y' ]; then
        echo 'Generating git repo . . .'
        git init
    fi
fi

if [ $# -eq 1 ]; then
    read -p 'Do you want a package.json? [Y/N] ' response
    if [ $response = 'Y' ] || [ $response = 'y' ]; then
        npm init
    fi
else 
    npm init
    shift
    echo 'installing' $*
    npm install $*
    touch '.gitignore'
    echo '/node_modules' > '.gitignore'
fi

echo 'Your web app has been generated!'
echo 'You can find it at'
pwd

read -p 'Would you like to push your first commit now? [Y/N]'

if [ $response = 'Y' ] || [ $response = 'y' ]; then
    git add .
    git commit -m 'initial commit'
    read -p 'Please enter the url to your git (.git):' url
    git remote add origin $url
    git push -u origin master
fi

read -p 'Would you like to open VSCode? [Y/N] ' response
if [ $response = 'Y' ] || [ $response = 'y' ]; then
    code .
fi

read -p 'Would you like to start live-server? [Y/N] ' response
if [ $response = 'Y' ] || [ $response = 'y' ]; then
    live-server
fi

exit

The shell script works when I run it natively (ex: ./webapp.sh myapp lodash ). 当我在本地运行时，shell脚本有效（例如： ./webapp.sh myapp lodash ）。 It will create the directories and, if prompted, initialize a git repo and install dependencies, open VSCode and launch live-server. 它将创建目录，并在出现提示时初始化git repo并安装依赖项，打开VSCode并启动实时服务器。 That's great and all. 太好了，所有。

But then I had a thought, if I refined this, maybe others would want to use it and it might be useful as an NPM package (granted, it's nowhere near ready for an NPM publication). 但是后来我想到，如果我对此进行完善，也许其他人会想使用它，并且它可能作为NPM软件包很有用（当然，它距离NPM出版物还差得很远）。 Instead of rewriting the whole thing in Node, I decided to just use shelljs : 我决定只使用shelljs ，而不是重写Node的全部shelljs ：

const shelljs = require('shelljs');

const args = process.argv.slice(2).reduce((accum, current)=> {
    return accum + current + ' ';
}, ' ').trim();

shelljs.exec(`./webapp.sh ${args}`);

Using Javascript it would be called node ./webapp.js myapp lodash express (as an example.) In this case, shelljs should execute ./webapp.sh myapp lodash express (where myapp is the name of the app and any following arguments are libraries to be installed). 使用Javascript将其称为node ./webapp.js myapp lodash express （作为示例。）在这种情况下，shelljs应该执行./webapp.sh myapp lodash express （其中myapp是应用程序的名称，以下任何参数是库）。 But what happens is after setting up the initial directories and echoing Generating myap ... it just hangs. 但是，在设置初始目录并回显Generating myap ...之后，会发生什么Generating myap ...它只是挂起。 It doesn't run the read -p 'Do you want a git repo' line. 它不会运行read -p 'Do you want a git repo'行。

Is this a problem with my version of bash (3.2) not matching that of Shelljs maybe? 这是我的bash（3.2）版本与Shelljs版本不匹配的问题吗？ I mean, it works fine if I just run it as a shell script, but if I try to run it through shelljs, it hangs. 我的意思是，如果我仅将其作为shell脚本运行，则效果很好，但如果尝试通过shelljs运行，则将挂起。 Is there a solution to this? 有针对这个的解决方法吗？ Why would it hang on that read -p . . . 为什么它将挂在该read -p . . . read -p . . . line only if called through shelljs? 仅通过shelljs调用才行吗？

The repo is here: https://github.com/jckuhl/Web-App-Generator 仓库在这里： https : //github.com/jckuhl/Web-App-Generator

Answer 1

As per the ShellJS FAQ : 根据ShellJS常见问题解答：

Running interactive programs with exec() 使用exec()运行交互式程序

We don't currently support running commands in exec which require interactive input. 我们目前不支持在exec中运行需要交互输入的命令。 The correct workaround is to use the native child_process module: 正确的解决方法是使用本机child_process模块：
 child_process.execFileSync(commandName, [arg1, arg2, ...], {stdio: 'inherit'}); 
Using npm init as an example: 以npm init为例：
 child_process.execFileSync('npm', ['init'], {stdio: 'inherit'}); 

为什么从Shell.js执行时，有效的Shell脚本停止执行？

问题描述

1 个解决方案

解决方案1
0 已采纳 2018-12-21 20:31:29

Running interactive programs with `exec()` 使用`exec()`运行交互式程序

为什么从Shell.js执行时，有效的Shell脚本停止执行？

问题描述

1 个解决方案

解决方案1 0 已采纳 2018-12-21 20:31:29

Running interactive programs with exec() 使用exec()运行交互式程序

解决方案1
0 已采纳 2018-12-21 20:31:29

Running interactive programs with `exec()` 使用`exec()`运行交互式程序