[arch] fix: exception when trying to retrieve the PKGBUILD of a package without a base defined (info)

CHANGELOG.md

@@ -69,6 +69,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - AppImage
   - info: displaying attributes related to the installation after the application has been removed (search)
 
+- Arch:
+  - AUR:
+    - info: exception when trying to retrieve the PKGBUILD of a package without a base defined
+
 - UI
   - some package icons would not appear if there is no URL associated with them
   

bauh/gems/arch/mapper.py

@@ -71,10 +71,13 @@ class AURDataMapper:
             with open(cached_pkgbuild) as f:
                 pkg.pkgbuild = f.read()
         else:
-            res = self.http_client.get(pkg.get_pkg_build_url())
+            url = pkg.get_pkg_build_url()
 
-            if res and res.status_code == 200 and res.text:
-                pkg.pkgbuild = res.text
+            if url:
+                res = self.http_client.get(url)
+
+                if res and res.status_code == 200 and res.text:
+                    pkg.pkgbuild = res.text
 
     def map_api_data(self, apidata: dict, pkgs_installed: Optional[dict], categories: dict) -> ArchPackage:
         data = pkgs_installed.get(apidata.get('Name')) if pkgs_installed else None