Method: Chef::CookbookVersion#preferred_manifest_record

Defined in:
lib/chef/cookbook_version.rb

#preferred_manifest_record(node, segment, filename) ⇒ Object

Determine the most specific manifest record for the given segment/filename, given information in the node. Throws FileNotFound if there is no such segment and filename in the manifest.

A manifest record is a Mash that follows the following form: 

:name => "example.rb",
:path => "files/default/example.rb",
:specificity => "default",
:checksum => "1234"




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# File 'lib/chef/cookbook_version.rb', line 294

def preferred_manifest_record(node, segment, filename)
  found_pref = find_preferred_manifest_record(node, segment, filename)
  if found_pref
    manifest_records_by_path[found_pref]
  else
    if %i{files templates}.include?(segment)
      error_message = "Cookbook '#{name}' (#{version}) does not contain a file at any of these locations:\n"
      error_locations = if filename.is_a?(Array)
                          filename.map { |name| "  #{File.join(segment.to_s, name)}" }
                        else
                          [
                            "  #{segment}/host-#{node[:fqdn]}/#{filename}",
                            "  #{segment}/#{node[:platform]}-#{node[:platform_version]}/#{filename}",
                            "  #{segment}/#{node[:platform]}/#{filename}",
                            "  #{segment}/default/#{filename}",
                            "  #{segment}/#{filename}",
                          ]
                        end
      error_message << error_locations.join("\n")
      existing_files = segment_filenames(segment)
      # Strip the root_dir prefix off all files for readability
      pretty_existing_files = existing_files.map do |path|
        if root_dir
          path[root_dir.length + 1..-1]
        else
          path
        end
      end
      # Show the files that the cookbook does have. If the user made a typo,
      # hopefully they'll see it here.
      unless pretty_existing_files.empty?
        error_message << "\n\nThis cookbook _does_ contain: ['#{pretty_existing_files.join("','")}']"
      end
      raise Chef::Exceptions::FileNotFound, error_message
    else
      raise Chef::Exceptions::FileNotFound, "cookbook #{name} does not contain file #{segment}/#{filename}"
    end
  end
end