add hypervisor detection

detect.go

@@ -9,6 +9,7 @@ import (
 
 var hc = &http.Client{Timeout: 120 * time.Millisecond}
 
+// Clouds type
 type Clouds struct {
 	Aws   string
 	Azure string
@@ -19,6 +20,7 @@ type Clouds struct {
 	Vr    string
 }
 
+// Detect function
 func Detect() string {
 	if runtime.GOOS != "darwin" {
 		var c Clouds

hypervisor.go

@@ -1,6 +1,8 @@
 package libdetectcloud
 
 import (
+	"regexp"
+
 	"github.com/digitalocean/go-smbios/smbios"
 )
 
@@ -13,6 +15,15 @@ type BIOS struct {
 	Hypervisor   string
 }
 
+var hypervisors = map[string][]string{
+	"VMWare":     []string{"vmware", "vm ware"},
+	"Xen":        []string{"xen"},
+	"Hyper-V":    []string{"microsoft", "hyperv", "hyper-v", "hyper v"},
+	"VirtualBox": []string{"virtual box", "virtual-box", "virtualbox"},
+	"KVM":        []string{"virt-manager", "virt manager", "virtmanager", "hvm", "kvm"},
+	"Parallels":  []string{"parallels"},
+}
+
 //BIOSInfo function gets information from the SMBIOS
 func BIOSInfo() (*BIOS, error) {
 	rc, _, err := smbios.Stream()
@@ -39,5 +50,18 @@ func BIOSInfo() (*BIOS, error) {
 		ProductName:  info[1],
 		SerialNumber: info[3],
 	}
+	for h, s := range hypervisors {
+		for _, i := range s {
+			re, err := regexp.Compile(`.*` + i + `.*`)
+			if err != nil {
+				return b, nil
+			}
+			if re.MatchString(b.Manufacturer) || re.MatchString(b.ProductName) {
+				b.IsVM = true
+				b.Hypervisor = h
+				return b, nil
+			}
+		}
+	}
 	return b, nil
 }