63 lines
1.7 KiB
JavaScript
63 lines
1.7 KiB
JavaScript
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import {spawn} from 'child_process';
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import {readdir} from 'fs/promises';
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import {tmpdir} from 'os';
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import {join} from 'path';
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import commandExists from 'command-exists';
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import D from 'debug';
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const debug = D('@flecks/repl/commands');
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export default (program, flecks) => {
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const commands = {};
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commands.repl = {
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options: [
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['-r, --rlwrap', 'use rlwrap around socat'],
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],
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description: 'connect to REPL',
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action: async (opts) => {
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const {
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rlwrap,
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} = opts;
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try {
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await commandExists('socat');
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}
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catch (error) {
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throw new Error('socat must be installed to use REPL');
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}
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if (rlwrap) {
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try {
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await commandExists('rlwrap');
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}
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catch (error) {
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throw new Error('rlwrap must be installed to use --rlwrap');
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}
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}
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const {id} = flecks.get('@flecks/core');
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const directory = join(tmpdir(), 'flecks', 'repl');
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const filenames = await readdir(directory);
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const sockets = filenames.filter(
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// eslint-disable-next-line no-useless-escape
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(filename) => filename.match(new RegExp(`${id}-.*\.sock$`)),
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);
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const socket = join(
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directory,
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sockets
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.sort((l, r) => (l > r ? -1 : 1))
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.shift(),
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);
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const spawnOptions = {
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stdio: 'inherit',
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};
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const [cmd, args] = (
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rlwrap
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? ['rlwrap', ['-C', 'qmp', 'socat', 'STDIO', `UNIX:${socket}`]]
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: ['socat', ['-', `unix-client:${socket}`]]
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);
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debug('spawning:\n%s %s', cmd, args.join(' '));
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return spawn(cmd, args, spawnOptions);
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},
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};
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return commands;
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};
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