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POHow do I open a terminal application from node.js?
 

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  1. POHow do I open a terminal application from node.js?
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    <p>I would like to be able to open <code>Vim</code> from node.js program running in the terminal, create some content, save and exit <code>Vim</code>, and then grab the contents of the file.</p> <p>I'm trying to do something like this:</p> <pre class="lang-coffee prettyprint-override"><code>filename = '/tmp/tmpfile-' + process.pid editor = process.env['EDITOR'] ? 'vi' spawn editor, [filename], (err, stdout, stderr) -&gt; text = fs.readFileSync filename console.log text </code></pre> <p>However, when this runs, it just hangs the terminal.</p> <p>I've also tried it with <code>exec</code> and got the same result.</p> <p><strong>Update:</strong></p> <p>This is complicated by the fact that this process is launched from a command typed at a prompt with <a href="http://nodejs.org/docs/latest/api/readline.html">readline</a> running. I completely extracted the relevant parts of my latest version out to a file. Here is it in its entirety:</p> <pre class="lang-coffee prettyprint-override"><code>{spawn} = require 'child_process' fs = require 'fs' tty = require 'tty' rl = require 'readline' cli = rl.createInterface process.stdin, process.stdout, null cli.prompt() filename = '/tmp/tmpfile-' + process.pid proc = spawn 'vim', [filename] #cli.pause() process.stdin.resume() indata = (c) -&gt; proc.stdin.write c process.stdin.on 'data', indata proc.stdout.on 'data', (c) -&gt; process.stdout.write c proc.on 'exit', () -&gt; tty.setRawMode false process.stdin.removeListener 'data', indata # Grab content from the temporary file and display it text = fs.readFile filename, (err, data) -&gt; throw err if err? console.log data.toString() # Try to resume readline prompt cli.prompt() </code></pre> <p>The way it works as show above, is that it shows a prompt for a couple of seconds, and then launches in to Vim, but the TTY is messed up. I can edit, and save the file, and the contents are printed correctly. There is a bunch of junk printed to terminal on exit as well, and Readline functionality is broken afterward (no Up/Down arrow, no Tab completion).</p> <p>If I uncomment the <code>cli.pause()</code> line, then the TTY is OK in Vim, but I'm stuck in insert mode, and the <code>Esc</code> key doesn't work. If I hit <code>Ctrl-C</code> it quits the child and parent process.</p>
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      1. POHow do I open a terminal application from node.js?
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    1. COCan you shed some light on the use case? Do you want to interact with Vim by running its commands or just write a file to disk?
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      1. USDevin M
    2. COIs the intention to ask a user to use the editor to create the content? Or are you intending to drive `vim` completely from within `node.js`?
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      1. POHow do I open a terminal application from node.js?
      1. USsarnold
    3. COI want to be able to open `vim` so that I can create content, and when finished, exit, and have node grab the contents of the temporary file, which I will then send as part of an HTTP request from node.
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      1. POHow do I open a terminal application from node.js?
      1. USmkopala
 

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