checkpoint for real

CachePackage.cs

@@ -0,0 +1,19 @@
+namespace Foodsoft.Alpm
+{
+    public class CachePackage : Package
+    {
+        // ReSharper disable once SuggestBaseTypeForParameter
+        internal CachePackage(SafeCachePackageHandle handle, Database db) : base(handle)
+        {
+            DB = db;
+        }
+
+        public override Database? DB { get; }
+
+        public void SetInstallReason(InstallReason reason)
+        {
+            if (alpm.alpm_pkg_set_reason(Handle, reason) != 0)
+                throw new Exception(alpm.alpm_errno(((SafeCachePackageHandle) Handle).SafeAlpmHandle));
+        }
+    }
+}