Move cli/cloudprovider into internal/cloud

internal/cloud/cloudprovider/cloudprovider.go

@@ -0,0 +1,33 @@
+package cloudprovider
+
+import "strings"
+
+//go:generate stringer -type=Provider
+
+// Provider is cloud provider used by the CLI.
+type Provider uint32
+
+const (
+	Unknown Provider = iota
+	AWS
+	Azure
+	GCP
+	QEMU
+)
+
+// FromString returns cloud provider from string.
+func FromString(s string) Provider {
+	s = strings.ToLower(s)
+	switch s {
+	case "aws":
+		return AWS
+	case "azure":
+		return Azure
+	case "gcp":
+		return GCP
+	case "qemu":
+		return QEMU
+	default:
+		return Unknown
+	}
+}