Add support for ARM architecture (#38)

* Add support for ARM architecture
* Test arm64 on travis
* Check for arm64

Co-authored-by: Aldo D'Aquino <[email protected]>

Author: rsip22

.travis.yml

@@ -1,10 +1,15 @@
 os:
-- osx
-- linux
+  - osx
+  - linux
+
+arch:
+  - amd64
+  - arm64
 
 language: node_js
 node_js:
-- node
-- 12
-- 10
-after_success: npm run coveralls
+  - node
+  - 12
+  - 10
+
+after_success: npm run coveralls

certs.js

@@ -43,7 +43,10 @@ function getExe() {
     case "darwin":
       return "mkcert-" + MKCERT_VERSION + "-darwin-amd64"
     case "linux":
-      return "mkcert-" + MKCERT_VERSION + "-linux-amd64"
+      if (process.arch === "arm" || process.arch === "arm64")
+        return "mkcert-" + MKCERT_VERSION + "-linux-arm"
+      else return "mkcert-" + MKCERT_VERSION + "-linux-amd64"
+      /* falls through */
     case "win32":
       return "mkcert-" + MKCERT_VERSION + "-windows-amd64.exe"
     default: