Update main.js

Author: gameroman

bin/main.js

@@ -50,31 +50,7 @@ module.exports = function main (source, outDir, args) {
         })
         const parts = parseShellQuote(command, env)
         const child = spawn(parts[0], parts.slice(1), { env })
-        const outer = new Duplex({
-          write(chunk, encoding, callback) {
-            if (!child.stdin.write(chunk, encoding)) {
-              child.stdin.once('drain', callback)
-            } else {
-              callback()
-            }
-          },
-          read(size) {
-            const chunk = child.stdout.read(size)
-            if (chunk !== null) {
-              this.push(chunk)
-            } else {
-              child.stdout.once('readable', () => {
-                const chunk = child.stdout.read(size)
-                if (chunk !== null) this.push(chunk)
-              })
-            }
-          },
-          destroy(err, callback) {
-            child.stdin.destroy(err)
-            child.stdout.destroy(err)
-            callback(err)
-          },
-        })
+        const outer = Duplex.from({ readable: child.stdout, writable: child.stdin })
         child.stdout.on('end', () => outer.push(null))
         child.on('exit', code => {
           if (code !== 0) {