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Contents
module Trackler
class GuaranteedFile
attr_accessor :content
def self.for(specification:, track:, filename:)
[TrackFile, CommonFile].detect(-> {NullFile}) do |d|
d.send(:exists?, specification: specification, track: track, filename: filename)
end.send(:new, specification: specification, track: track, filename: filename)
end
private
attr_accessor :track, :filename, :specification
def self.exists?(specification:, track:, filename:)
File.exists?(location(specification: specification, track: track, filename: filename))
end
private_class_method :exists?
def initialize(specification:, track:, filename:)
self.specification = specification
self.track = track
self.filename = filename
self.content = File.read(self.class.location(specification: specification, track: track, filename: filename))
end
private_class_method :new
end
class TrackFile < GuaranteedFile
def self.location(specification:, track:, filename:)
File.join(specification.root, 'tracks', track.id, 'exercises', specification.slug, '.meta', filename)
end
def url
"#{track.repository}/blob/master/exercises/%s/.meta/#{filename}" % specification.slug
end
end
class CommonFile < GuaranteedFile
def self.location(specification:, filename:, **_track)
File.join(specification.root, 'common', 'exercises', specification.slug, filename)
end
def url
"https://github.com/exercism/x-common/blob/master/exercises/%s/#{filename}" % specification.slug
end
end
class NullFile < GuaranteedFile
def method_missing(*)
# NOOP
end
def respond_to?(*)
true
end
def inspect
"<null>"
end
def exists?
false
end
def content
""
end
def initialize(*)
self
end
klass = self
define_method(:class) { klass }
end
end
Version data entries
23 entries across 23 versions & 1 rubygems