Static file in collection (with permalink set) causes build to fail

[joeshannon]

With the latest Jekyll version (4) a collection containing a static file causes the build to break when a permalink is set on the collection.

My Environment

Software	Version(s)
Operating System	Linux
jekyll	Latest
github-pages	No

---

Expected Behaviour

The static file should be copied into _site and build should succeed.

(Alternatively if there really is a problem a meaningful error message should be given.)

Current Behavior

Jekyll build fails with stack trace. Example repository here:
https://github.com/joeshannon/jekyll-collection-static-issue

• Errors can be found on the travis builds (i.e. https://travis-ci.org/joeshannon/jekyll-collection-static-issue)
• A Jekyll V3.x branch is provided where there is no issue

Code Sample

https://github.com/joeshannon/jekyll-collection-static-issue

[ashmaroli]

Thank you for reporting this bug. Though this issue only occurs if the static file doesn't have an extension.

[ashmaroli]

Workaround

Until a proper patch is shipped, you may use the following workaround by pasting the code in a file at the path <source_dir>/_plugins/monkey_patch.rb

# frozen_string_literal: true

module Jekyll
  class StaticFile
    def placeholders
      {
        :collection => @collection.label,
        :path       => cleaned_relative_path,
        :output_ext => "",
        :name       => basename,
        :title      => "",
      }
    end
  end
end

[joeshannon]

No problem, thanks for providing a workaround.