Package::Backends are provided a context when called.

src/context.cr

@@ -18,12 +18,12 @@ end
 class Package::Backend::Packaging
 	getter name : String
 
-	def initialize(@name, &block : Proc(Package, Bool))
+	def initialize(@name, &block : Proc(Context, Package, Bool))
 		@callback = block
 	end
 
-	def package(package : Package)
-		@callback.call package
+	def package(context : Context, package : Package)
+		@callback.call context, package
 	end
 end
 
@@ -40,14 +40,14 @@ class Package::Context
 	property architecture = "x86_64"
 
 	def initialize
-		@packaging_backends << Backend::Packaging.new "pkgutils" do |package|
+		@packaging_backends << Backend::Packaging.new "pkgutils" do |context, package|
 			puts "#{package.fake_root_directory} -> #{packages_directory}/#{package.name}##{package.version}-#{package.release}.pkg.tar.xz"
 			pp! r = run package.fake_root_directory, "tar", ["cJf", "#{packages_directory}/#{package.name}##{package.version}.pkg.tar.xz", "."]
 
 			r.exit_status == 0
 		end
 
-		@packaging_backends << Backend::Packaging.new "apk" do |package|
+		@packaging_backends << Backend::Packaging.new "apk" do |context, package|
 			# FIXME: This needs to have access to architecture (from Context?)
 			#        to work properly.
 			old_cwd = Dir.current
@@ -59,8 +59,11 @@ class Package::Context
 			puts pkginfo package
 			File.write "#{package.fake_root_directory}/.PKGINFO", pkginfo package
 
+
 			# Create data.tar.gz here.
-			package_target = "#{packages_directory}/#{package.name}-#{package.version}-r#{package.release}.apk"
+			package_target = "#{packages_directory}/#{context.architecture}/#{package.name}-#{package.version}-r#{package.release}.apk"
+			Dir.mkdir_p File.dirname package_target
+
 			# FIXME: This shouldn’t have to be in users’ PATH. libexec?
 			r = run package.fake_root_directory, "assemble-apk.sh", [
 				package_target
@@ -141,7 +144,7 @@ class Package::Context
 	end
 
 	def package(package : Package) : Bool
-		@selected_packaging_backend.package package
+		@selected_packaging_backend.package self, package
 	end
 end