Class: Middleman::CoreExtensions::FrontMatter::FrontmatterManager

Inherits:
Object
  • Object
show all
Defined in:
middleman-core/lib/middleman-core/core_extensions/front_matter.rb

Instance Method Summary (collapse)

Constructor Details

- (FrontmatterManager) initialize(app)

A new instance of FrontmatterManager



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# File 'middleman-core/lib/middleman-core/core_extensions/front_matter.rb', line 47

def initialize(app)
  @app = app
  @cache = {}
end

Instance Method Details

- (Object) clear_data(path) 



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# File 'middleman-core/lib/middleman-core/core_extensions/front_matter.rb', line 57

def clear_data(path)
  p = normalize_path(File.expand_path(path, @app.root))
  @cache.delete(p)
end

- (Object) data(path) 



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# File 'middleman-core/lib/middleman-core/core_extensions/front_matter.rb', line 52

def data(path)
  p = normalize_path(path)
  @cache[p] ||= frontmatter_and_content(p)
end

- (Array<Thor::CoreExt::HashWithIndifferentAccess, String>) frontmatter_and_content(path)

Get the frontmatter and plain content from a file

Parameters:

  • path (String)

Returns:

  • (Array<Thor::CoreExt::HashWithIndifferentAccess, String>) 


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# File 'middleman-core/lib/middleman-core/core_extensions/front_matter.rb', line 112

def frontmatter_and_content(path)
  full_path = File.expand_path(path, @app.source_dir)
  content = File.read(full_path)

  if result = parse_yaml_front_matter(content)
    data, content = result
    data = ::Middleman::Util.recursively_enhance(data).freeze
  elsif result = parse_json_front_matter(content)
    data, content = result
    data = ::Middleman::Util.recursively_enhance(data).freeze
  else
    data = {}
  end

  [data, content]
end

- (void) manipulate_resource_list(resources)

This method returns an undefined value.

Update the main sitemap resource list



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# File 'middleman-core/lib/middleman-core/core_extensions/front_matter.rb', line 135

def manipulate_resource_list(resources)
  resources.each do |r|
    if !r.proxy? && r.data["ignored"] == true
      r.frontmatter_ignored = true
    end
  end
  
  resources
end

- (Object) normalize_path(path) 



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# File 'middleman-core/lib/middleman-core/core_extensions/front_matter.rb', line 129

def normalize_path(path)
  path.sub(@app.source_dir, "").sub(/^\//, "")
end

- (Object) parse_json_front_matter(content) 



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# File 'middleman-core/lib/middleman-core/core_extensions/front_matter.rb', line 86

def parse_json_front_matter(content)
  json_regex = /^(\{\{\{\s*\n.*?\n?)^(\}\}\}\s*$\n?)/m
  
  if content =~ json_regex
    content = content.sub(json_regex, "")

    begin
      json = ($1+$2).sub("{{{", "{").sub("}}}", "}")
      data = ActiveSupport::JSON.decode(json)
    rescue => e
      puts "JSON Exception: #{e.message}"
      return false
    end

  else
    return false
  end

  [data, content]
rescue
  [{}, content]
end

- (Array<Hash, String>) parse_yaml_front_matter(content)

Parse YAML frontmatter out of a string

Parameters:

  • content (String)

Returns:

  • (Array<Hash, String>) 


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# File 'middleman-core/lib/middleman-core/core_extensions/front_matter.rb', line 65

def parse_yaml_front_matter(content)
  yaml_regex = /^(---\s*\n.*?\n?)^(---\s*$\n?)/m
  if content =~ yaml_regex
    content = content.sub(yaml_regex, "")

    begin
      data = YAML.load($1)
    rescue => e
      puts "YAML Exception: #{e.message}"
      return false
    end

  else
    return false
  end

  [data, content]
rescue
  [{}, content]
end