fix: check error code on build commands

src/compiler.ts

@@ -139,7 +139,13 @@ export class NexeCompiler<T extends NexeOptions = NexeOptions> {
         stdio: 'ignore'
       })
         .once('error', reject)
-        .once('close', resolve)
+        .once('close', (code: number) => {
+          if (code != 0) {
+            const error = `${command} ${args.join(' ')} exited with code: ${code}`
+            reject(new Error(error))
+          }
+          resolve()
+        })
     })
   }
 

src/steps/cli.ts

@@ -41,8 +41,6 @@ export default async function cli(compiler: NexeCompiler, next: () => Promise<vo
 
   await next()
 
-  log.step(`Bundling: '${stdInUsed ? '[stdin]' : compiler.options.input}'`)
-
   const target = compiler.options.targets.shift() as NexeTarget
   const deliverable = await compiler.compileAsync(target)
 
@@ -56,7 +54,11 @@ export default async function cli(compiler: NexeCompiler, next: () => Promise<vo
           reject(e)
         } else if (compiler.output) {
           chmodSync(compiler.output, '755')
-          step.log(`Executable written to: ${compiler.output}`)
+          step.log(
+            `Entry: '${stdInUsed
+              ? '[stdin]'
+              : compiler.options.input}' written to: ${compiler.output}`
+          )
           resolve(compiler.quit())
         }
       })