Cleanup tmp directory after build

src/commands/build.cr

@@ -16,6 +16,7 @@ module Faaso
           if options["--local"]
             Log.info { "Building function... #{funko.name} in #{tmp_dir}" }
             funko.build tmp_dir
+            FileUtils.rm_rf(tmp_dir)
             next
           end
           Faaso.check_version
@@ -39,7 +40,7 @@ module Faaso
               end
             end
           end
-
+          FileUtils.rm_rf(tmp_dir)
           tmp = File.tempname
           File.open(tmp, "w") do |outf|
             outf << buf

src/daemon/funko.cr

@@ -53,8 +53,9 @@ module Funko
 
     # Build the thing
     run_faaso(["build", tmp_dir.to_s, "--no-runtime"], env)
+  ensure
+    FileUtils.rm_rf(tmp_dir) unless tmp_dir.nil?
   end
-
   # Endpoints for the web frontend
 
   # General status for the front page