ap: new subcommand: list-apks

ap.in

@@ -1,7 +1,7 @@
 #!/usr/bin/lua
 
-require("aports")
-require("lfs")
+aports = require("aports")
+lfs = require("lfs")
 
 local db
 
@@ -130,6 +130,18 @@ subcmd["build-list"] = {
 	end
 }
 
+subcmd["list-apks"] = {
+	desc = "List all apk files",
+	usage = "",
+	run = function()
+		db:foreach(function(k)
+			db:foreach_pkg(k, function(_, p)
+				print(aports.get_apk_filename(p))
+			end)
+		end)
+	end
+}
+
 function print_usage()
 	io.write("usage: ap -d <DIR> SUBCOMMAND [options]\n\nSubcommands are:\n")
 	local k,v