don't remove compressed files from client app symlinks

Change-Id: Ib26d7865dd68a53e3dc7b6ea424965939c07ca0e
Reviewed-on: https://gerrit.instructure.com/64579
Reviewed-by: Rob Orton <rob@instructure.com>
Tested-by: Jenkins
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>

.gitignore

@@ -38,7 +38,9 @@ Gemfile.lock4
 /public/javascripts/jst/
 /public/javascripts/jsx/
 /public/javascripts/translations/
+/public/javascripts/**/*.gz
 /public/optimized/
+/public/vendor/tinymce_themes/**/*.gz
 /spec/javascripts/compiled/
 /spec/javascripts/requirejs_config.js
 /spec/javascripts/runner.html

config/initializers/client_app_symlinks.rb

@@ -33,6 +33,8 @@ def maintain_client_app_symlinks
       dir = dir.dirname
     end
   end
+  # compressing assets can generate .gz versions of files; don't remove them
+  valid_files.merge(valid_files.map { |f| Pathname.new(f.to_s + '.gz') })
 
   # remove any unnecessary links
   Pathname.glob("public/javascripts/client_apps/**/*").each do |file|