66 lines
1.6 KiB
JavaScript
66 lines
1.6 KiB
JavaScript
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import {spawn} from 'node:child_process';
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/**
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* Strips known-benign noise from a command's stderr.
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* @param {string} stderr
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* @returns {string|undefined}
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*/
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export function stripStderr(stderr) {
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if (!stderr) return;
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stderr = stderr.trim();
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// Strip bogus screen size error.
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// See https://github.com/microsoft/vscode/issues/98590
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const regex = /your \d+x\d+ screen size is bogus\. expect trouble/gi;
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stderr = stderr.replaceAll(regex, '');
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return stderr.trim();
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}
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/**
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* Spawn a binary and read its stdout.
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* @param {string} cmd The name of the binary to spawn.
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* @param {string[]} args The arguments for the binary.
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* @param {object} [options] Optional options for the spawn function.
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* @param {Function} done done(err, stdout, code)
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*/
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export function run(cmd, args, options, done) {
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if (typeof options === 'function') {
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done = options;
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options = undefined;
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}
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let executed = false;
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const child = spawn(cmd, args, options);
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let stdout = '';
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let stderr = '';
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child.stdout.on('data', (data) => {
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stdout += data.toString();
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});
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child.stderr.on('data', (data) => {
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stderr += data.toString();
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});
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child.on('error', (error) => {
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if (executed) return;
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executed = true;
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// Pass the original error through so callers can inspect err.code
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// (e.g. 'ENOENT' when the binary is missing) to decide on a fallback.
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done(error);
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});
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child.on('close', (code) => {
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if (executed) return;
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executed = true;
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stderr = stripStderr(stderr);
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if (stderr) {
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done(new Error(stderr));
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return;
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}
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done(null, stdout, code);
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});
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}
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