From eb26524abec5746d7ff380cc96683d752328bec0 Mon Sep 17 00:00:00 2001
From: Vasily Fedoseyev <vasilyfedoseyev@gmail.com>
Date: Tue, 9 Apr 2024 14:55:55 +0300
Subject: [PATCH] Add extension to original file on reprocess

---
 lib/paperclip/attachment.rb | 5 ++++-
 lib/paperclip/optimizer.rb  | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/paperclip/attachment.rb b/lib/paperclip/attachment.rb
index 1a9c318..a16f187 100644
--- a/lib/paperclip/attachment.rb
+++ b/lib/paperclip/attachment.rb
@@ -314,7 +314,10 @@ module Paperclip
     # thumbnails forcefully, by reobtaining the original file and going through
     # the post-process again.
     def reprocess!
-      new_original = Tempfile.new("paperclip-reprocess-#{instance.class.table_name}-#{instance.id}-")
+      new_original = Tempfile.new([
+        "paperclip-reprocess-#{instance.class.table_name}-#{instance.id}-",
+        File.extname(instance_read(:file_name))
+      ])
       new_original.binmode
       old_original = to_file(:original) || raise("no original in store")
       # по идее копирование нужно не всегда
diff --git a/lib/paperclip/optimizer.rb b/lib/paperclip/optimizer.rb
index c69d500..6a0811d 100644
--- a/lib/paperclip/optimizer.rb
+++ b/lib/paperclip/optimizer.rb
@@ -22,6 +22,7 @@ module Paperclip
       dst_shell = dst_file.path.shellescape
       cmd = case real_content_type
             when 'image/jpeg', 'image/jpg', 'image/pjpeg'
+              # TODO: --stdout > #{dst_shell}
               "cp #{src_shell} #{dst_shell} && jpegoptim --all-progressive -q --strip-com --strip-exif --strip-iptc -- #{dst_shell}"
             when 'image/png', 'image/x-png'
               "pngcrush -rem alla -q #{src_shell} #{dst_shell}"