From 32ef13c2e089904ceb1523f6bb7498699f0beea0 Mon Sep 17 00:00:00 2001
From: Jeffrey Clark <h0tw1r3@users.noreply.github.com>
Date: Wed, 17 Apr 2024 13:21:26 -0500
Subject: [PATCH] optimize fetch to use local download

if source is already downloaded and can be verified, skip downloading again.
---
 lib/vanagon/component/source/http.rb | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/vanagon/component/source/http.rb b/lib/vanagon/component/source/http.rb
index 05097b1d..5b2fddd0 100644
--- a/lib/vanagon/component/source/http.rb
+++ b/lib/vanagon/component/source/http.rb
@@ -82,6 +82,13 @@ def initialize(url, sum:, workdir:, sum_type:, **options)
         # Download the source from the url specified. Sets the full path to the
         # file as @file and the @extension for the file as a side effect.
         def fetch
+          @file = File.basename(URI.parse(@url).path)
+          begin
+            return if verify
+          rescue RuntimeError, Errno::ENOENT
+            remove_instance_variable(:@file)
+          end
+
           @file = download(@url)
         end