FIX: Moving upload to tombstone should update modification time.

A upload created a long time ago will be nuked from the tombstone
immediately if it gets deleted.

lib/file_store/local_store.rb

@@ -17,6 +17,7 @@ module FileStore
       dir = Pathname.new(destination).dirname
       FileUtils.mkdir_p(dir) unless Dir.exists?(dir)
       FileUtils.move(source, destination, force: true)
+      FileUtils.touch(destination)
     end
 
     def has_been_uploaded?(url)

spec/components/file_store/local_store_spec.rb

@@ -10,7 +10,7 @@ describe FileStore::LocalStore do
 
   let(:optimized_image) { Fabricate(:optimized_image) }
 
-  describe ".store_upload" do
+  describe "#store_upload" do
 
     it "returns a relative url" do
       store.expects(:copy_file)
@@ -19,7 +19,7 @@ describe FileStore::LocalStore do
 
   end
 
-  describe ".store_optimized_image" do
+  describe "#store_optimized_image" do
 
     it "returns a relative url" do
       store.expects(:copy_file)
@@ -28,7 +28,7 @@ describe FileStore::LocalStore do
 
   end
 
-  describe ".remove_upload" do
+  describe "#remove_upload" do
 
     it "does not delete non uploaded" do
       FileUtils.expects(:mkdir_p).never
@@ -36,26 +36,58 @@ describe FileStore::LocalStore do
     end
 
     it "moves the file to the tombstone" do
-      filename = File.basename(store.path_for(upload))
-      store.remove_upload(upload)
-      expect(File.exist?(store.tombstone_dir + "/" + filename))
+      begin
+        upload = UploadCreator.new(
+          file_from_fixtures("smallest.png"),
+          "smallest.png"
+        ).create_for(Fabricate(:user).id)
+
+        path = store.path_for(upload)
+        mtime = File.mtime(path)
+
+        sleep 0.01 # Delay a little for mtime to be updated
+        store.remove_upload(upload)
+        tombstone_path = path.sub("/uploads/", "/uploads/tombstone/")
+
+        expect(File.exist?(tombstone_path)).to eq(true)
+        expect(File.mtime(tombstone_path)).to_not eq(mtime)
+      ensure
+        [path, tombstone_path].each do |file_path|
+          File.delete(file_path) if File.exist?(file_path)
+        end
+      end
     end
 
   end
 
-  describe ".remove_optimized_image" do
-    let(:optimized_image) { Fabricate(:optimized_image, url: "/uploads/default/_optimized/42/253dc8edf9d4ada1.png") }
-
+  describe "#remove_optimized_image" do
     it "moves the file to the tombstone" do
-      FileUtils.expects(:mkdir_p)
-      FileUtils.expects(:move)
-      File.expects(:exists?).returns(true)
-      store.remove_optimized_image(optimized_image)
+      begin
+        upload = UploadCreator.new(
+          file_from_fixtures("smallest.png"),
+          "smallest.png"
+        ).create_for(Fabricate(:user).id)
+
+        upload.create_thumbnail!(1, 1)
+        upload.reload
+
+        optimized_image = upload.thumbnail(1, 1)
+        path = store.path_for(optimized_image)
+
+        store.remove_optimized_image(optimized_image)
+        tombstone_path = path.sub("/uploads/", "/uploads/tombstone/")
+
+        expect(File.exist?(tombstone_path)).to eq(true)
+      ensure
+        [path, tombstone_path].each do |file_path|
+          File.delete(file_path) if File.exist?(file_path)
+        end
+      end
     end
 
   end
 
-  describe ".has_been_uploaded?" do
+  describe "#has_been_uploaded?" do
 
     it "identifies relatives urls" do
       expect(store.has_been_uploaded?("/uploads/default/42/0123456789ABCDEF.jpg")).to eq(true)
@@ -85,7 +117,7 @@ describe FileStore::LocalStore do
     Discourse.stubs(:base_uri).returns("/forum")
   end
 
-  describe ".absolute_base_url" do
+  describe "#absolute_base_url" do
 
     it "is present" do
       expect(store.absolute_base_url).to eq("http://test.localhost/uploads/default")
@@ -98,7 +130,7 @@ describe FileStore::LocalStore do
 
   end
 
-  describe ".relative_base_url" do
+  describe "#relative_base_url" do
 
     it "is present" do
       expect(store.relative_base_url).to eq("/uploads/default")