1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arch.go b/arch/arch.go
new file mode 100644
index 0000000..d4a3e6b
--- /dev/null
+++ b/arch/arch.go
@@ -0,0 +1,48 @@
+// package arch contains mappings between the Golang architecture and
+// the RPM architecture used by Fedora CoreOS and derivatives.
+package arch
+
+import "runtime"
+
+type mapping struct {
+	rpmArch string
+	goArch  string
+}
+
+// If an architecture isn't defined here, we assume it's
+// pass through.
+var translations = []mapping{
+	{
+		rpmArch: "x86_64",
+		goArch:  "amd64",
+	},
+	{
+		rpmArch: "aarch64",
+		goArch:  "arm64",
+	},
+}
+
+// CurrentRpmArch returns the current architecture in RPM terms.
+func CurrentRpmArch() string {
+	return RpmArch(runtime.GOARCH)
+}
+
+// RpmArch translates a Go architecture to RPM.
+func RpmArch(goarch string) string {
+	for _, m := range translations {
+		if m.goArch == goarch {
+			return m.rpmArch
+		}
+	}
+	return goarch
+}
+
+// GoArch translates an RPM architecture to Go.
+func GoArch(rpmarch string) string {
+	for _, m := range translations {
+		if m.rpmArch == rpmarch {
+			return m.goArch
+		}
+	}
+	return rpmarch
+}