Class: Polygon::ContentLoader

Inherits:
Object
  • Object
show all
Defined in:
lib/polygon/content_loader.rb

Instance Method Summary collapse

Instance Method Details

#enable_all! ⇒ Object 



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# File 'lib/polygon/content_loader.rb', line 59

def enable_all!
  enable_yaml!
  enable_json!
  enable_ruby!
  enable_yaml_front_matter!
end

#enable_json!(*ext) ⇒ Object 



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# File 'lib/polygon/content_loader.rb', line 32

def enable_json!(*ext)
  require 'json'
  ext = [".json"] if ext.empty?
  register(*ext) do |f| 
    JSON.load(f.read) 
  end
end

#enable_ruby!(*ext) ⇒ Object 



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# File 'lib/polygon/content_loader.rb', line 40

def enable_ruby!(*ext)
  ext = [".rb", ".ruby"] if ext.empty?
  register(*ext) do |f| 
    ::Kernel.eval(f.read, TOPLEVEL_BINDING, f.to_s) 
  end
end

#enable_yaml!(*ext) ⇒ Object

Loaders



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# File 'lib/polygon/content_loader.rb', line 24

def enable_yaml!(*ext)
  require 'yaml'
  ext = [".yml", ".yaml"] if ext.empty?
  register(*ext) do |f| 
    YAML.load(f.read) 
  end
end

#enable_yaml_front_matter!(*ext) ⇒ Object 



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# File 'lib/polygon/content_loader.rb', line 47

def enable_yaml_front_matter!(*ext)
  ext = [".md"] if ext.empty?
  register(*ext) do |f| 
    content = f.read.force_encoding(Encoding::UTF_8)
    if content =~ /^(---\s*\n.*?\n?)^(---\s*$\n?)/m
      YAML::load($1).merge("content" => $')
    else
      {"content" => content}
    end
  end
end

#extensions ⇒ Object 



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# File 'lib/polygon/content_loader.rb', line 10

def extensions
  loaders.map(&:first).flatten
end

#load(file) ⇒ Object 



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# File 'lib/polygon/content_loader.rb', line 14

def load(file)
  file = Path(file)
  unless l = loader(file)
    raise "Unable to load #{file.basename} (unrecognized extension)" 
  end
  l.call(file)
end

#register(*extensions, &loader) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/polygon/content_loader.rb', line 4

def register(*extensions, &loader)
  raise ArgumentError, "Extensions expected" if extensions.empty?
  loaders << [extensions, loader]
  self
end