run on darwin as e.g. AWS allows macOS on EC2

detect.go

@@ -3,7 +3,6 @@ package libdetectcloud
 import (
 	"context"
 	"net/http"
-	"runtime"
 	"sync"
 	"time"
 )
@@ -11,52 +10,51 @@ import (
 var hc = &http.Client{Timeout: 300 * time.Millisecond}
 
 func Detect() string {
-	if runtime.GOOS != "darwin" {
-		ctx, cancel := context.WithCancel(context.Background())
-		defer cancel()
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
 
-		detectFuncs := []func() string{
-			detectAlibabaCloud,
-			detectAWS,
-			detectAzure,
-			detectDigitalOcean,
-			detectGCE,
-			detectOpenStack,
-			detectSoftlayer,
-			detectVultr,
-			detectContainer,
-		}
+	detectFuncs := []func() string{
+		detectAlibabaCloud,
+		detectAWS,
+		detectAzure,
+		detectDigitalOcean,
+		detectGCE,
+		detectOpenStack,
+		detectSoftlayer,
+		detectVultr,
+		detectContainer,
+	}
 
-		results := make(chan string, len(detectFuncs))
+	results := make(chan string, len(detectFuncs))
 
-		var wg sync.WaitGroup
-		wg.Add(len(detectFuncs))
+	var wg sync.WaitGroup
+	wg.Add(len(detectFuncs))
 
-		for _, fn := range detectFuncs {
-			go func(f func() string) {
-				defer wg.Done()
-				select {
-				case <-ctx.Done():
-					return
-				default:
-					if result := f(); result != "" {
-						results <- result
-						cancel()
-					}
+	for _, fn := range detectFuncs {
+		go func(f func() string) {
+			defer wg.Done()
+			select {
+			case <-ctx.Done():
+				return
+			default:
+				if result := f(); result != "" {
+					results <- result
+					cancel()
 				}
-			}(fn)
-		}
-
-		go func() {
-			wg.Wait()
-			close(results)
-		}()
-
-		for result := range results {
-			if result != "" {
-				return result
 			}
+		}(fn)
+	}
+
+	go func() {
+		wg.Wait()
+		close(results)
+	}()
+
+	for result := range results {
+		if result != "" {
+			return result
 		}
 	}
+
 	return ""
 }