Fix treatment of spaces in file names

Author: suhlig

lib/revealing/tasks/assets.rake

@@ -26,7 +26,7 @@ refute_duplicate_basename(RESIZABLE_ASSETS)
 RESIZED_ASSETS.zip(RESIZABLE_ASSETS).each do |target, source|
   desc "Resize #{source} to #{target}"
   file target => source do
-    sh "gm convert #{source} -geometry '1920x1080>' #{target}"
+    sh "gm convert '#{source}' -geometry '1920x1080>' '#{target}'"
   end
 end
 

lib/revealing/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Revealing
-  VERSION = '1.6.0'
+  VERSION = '1.7.0'
 end

spec/fixtures/images/a mouse.jpg

@@ -13,3 +13,11 @@ Author: [Dimitris Vetsikas](https://pixabay.com/users/dimitrisvetsikas1969/)
 Image from [Pixabay](https://pixabay.com/photos/dog-dog-runs-animal-nature-fun-1551709/)
 
 Authors: [Tom und Nicki Löschner](https://pixabay.com/users/tonic-pics)
+
+# Mouse
+
+![SneakerMouse-0436](a mouse.jpg)
+
+Image from [flickr](https://www.flickr.com/photos/59504749@N00/529303113) licensed under [CC BY-NC-SA 2.0](https://creativecommons.org/licenses/by-nc-sa/2.0/?ref=ccsearch&atype=html)
+
+Author: [Kadath](https://www.flickr.com/photos/59504749@N00)

spec/fixtures/images/index.markdown

@@ -16,6 +16,10 @@
     expect(last_command_started).to be_successfully_executed, lambda { last_command_started.output }
   end
 
+  it 'handles images with spaces in the file name' do
+    expect(project_directory / 'public_html/a mouse.jpg').to exist
+  end
+
   it 'resizes images to not be wider than 1920px' do
     expect(Image.new(project_directory / 'public_html/cat-1608581.jpg').width).to be <= 1920
     expect(Image.new(project_directory / 'public_html/dog-1551709.jpg').width).to be <= 1920