fix: only add extension when targeting windows

package.json

@@ -2,7 +2,7 @@
   "name": "nexe",
   "description": "Create a single executable out of your Node.js application",
   "license": "MIT",
-  "version": "2.0.0-rc.17",
+  "version": "2.0.0-rc.18",
   "contributors": [
     "Craig Condon <craig.j.condon@gmail.com> (http://crcn.io)",
     "Jared Allard <jaredallard@outlook.com>",

src/options.ts

@@ -218,19 +218,19 @@ function normalizeOptions(input?: Partial<NexeOptions>): NexeOptions {
   options.loglevel = extractLogLevel(options)
   options.flags = flatten(opts.flag, options.flags)
   options.targets = flatten(opts.target, options.targets).map(getTarget)
+  if (!options.targets.length) {
+    options.targets.push(getTarget())
+  }
   options.make = flatten(options.vcBuild, options.make)
   options.configure = flatten(options.configure)
   options.resources = flatten(opts.resource, options.resources)
   options.rc = options.rc || extractCliMap(/^rc-.*/, options)
-  options.output = isWindows
-    ? `${(options.output || options.name).replace(/\.exe$/, '')}.exe`
-    : `${options.output || options.name}`
+  options.output =
+    (options.targets[0] as NexeTarget).platform === 'windows'
+      ? `${(options.output || options.name).replace(/\.exe$/, '')}.exe`
+      : `${options.output || options.name}`
   options.output = resolve(cwd, options.output)
 
-  if (!options.targets.length) {
-    options.targets.push(getTarget())
-  }
-
   if (options.build) {
     const { arch } = options.targets[0] as NexeTarget
     if (isWindows) {