Class: Bunto::Configuration

Inherits:
Hash
  • Object
show all
Defined in:
lib/bunto/configuration.rb

Constant Summary collapse

DEFAULTS =

Default options. Overridden by values in _config.yml. Strings rather than symbols are used for compatibility with YAML.

Configuration[{
  # Where things are
  "source"            => Dir.pwd,
  "destination"       => File.join(Dir.pwd, "_site"),
  "plugins_dir"       => "_plugins",
  "layouts_dir"       => "_layouts",
  "data_dir"          => "_data",
  "includes_dir"      => "_includes",
  "collections"       => {},

  # Handling Reading
  "safe"              => false,
  "include"           => [".htaccess"],
  "exclude"           => [],
  "keep_files"        => [".git", ".svn"],
  "encoding"          => "utf-8",
  "markdown_ext"      => "markdown,mkdown,mkdn,mkd,md",

  # Filtering Content
  "show_drafts"       => nil,
  "limit_posts"       => 0,
  "future"            => false,
  "unpublished"       => false,

  # Plugins
  "whitelist"         => [],
  "gems"              => [],

  # Conversion
  "markdown"          => "kramdown",
  "highlighter"       => "rouge",
  "lsi"               => false,
  "excerpt_separator" => "\n\n",
  "incremental"       => false,

  # Serving
  "detach"            => false, # default to not detaching the server
  "port"              => "4000",
  "host"              => "127.0.0.1",
  "baseurl"           => "",
  "show_dir_listing"  => false,

  # Output Configuration
  "permalink"         => "date",
  "paginate_path"     => "/page:num",
  "timezone"          => nil, # use the local timezone

  "quiet"             => false,
  "verbose"           => false,
  "defaults"          => [],

  "liquid"            => {
    "error_mode" => "warn"
  },

  "rdiscount"         => {
    "extensions" => []
  },

  "redcarpet"         => {
    "extensions" => []
  },

  "kramdown"          => {
    "auto_ids"      => true,
    "toc_levels"    => "1..6",
    "entity_output" => "as_char",
    "smart_quotes"  => "lsquo,rsquo,ldquo,rdquo",
    "input"         => "GFM",
    "hard_wrap"     => false,
    "footnote_nr"   => 1
  }
}.map { |k, v| [k, v.freeze] }].freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.from(user_config) ⇒ Object

Static: Produce a Configuration ready for use in a Site. It takes the input, fills in the defaults where values do not exist, and patches common issues including migrating options for backwards compatiblity. Except where a key or value is being fixed, the user configuration will override the defaults.

user_config - a Hash or Configuration of overrides.

Returns a Configuration filled with defaults and fixed for common problems and backwards-compatibility.



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# File 'lib/bunto/configuration.rb', line 92

def from(user_config)
  Utils.deep_merge_hashes(DEFAULTS, Configuration[user_config].stringify_keys)
    .fix_common_issues.add_default_collections
end

Instance Method Details

#add_default_collections ⇒ Object 



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# File 'lib/bunto/configuration.rb', line 257

def add_default_collections
  config = clone

  # It defaults to `{}`, so this is only if someone sets it to null manually.
  return config if config["collections"].nil?

  # Ensure we have a hash.
  if config["collections"].is_a?(Array)
    config["collections"] = Hash[config["collections"].map { |c| [c, {}] }]
  end

  config["collections"] = Utils.deep_merge_hashes(
    { "posts" => {} }, config["collections"]
  ).tap do |collections|
    collections["posts"]["output"] = true
    if config["permalink"]
      collections["posts"]["permalink"] ||= style_to_permalink(config["permalink"])
    end
  end

  config
end

#backwards_compatibilize ⇒ Object

Public: Ensure the proper options are set in the configuration to allow for backwards-compatibility with Bunto pre-1.0

Returns the backwards-compatible configuration



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# File 'lib/bunto/configuration.rb', line 224

def backwards_compatibilize
  config = clone
  # Provide backwards-compatibility
  check_auto(config)
  check_server(config)

  renamed_key "server_port", "port", config
  renamed_key "plugins", "plugins_dir", config
  renamed_key "layouts", "layouts_dir", config
  renamed_key "data_source", "data_dir", config

  check_pygments(config)
  check_include_exclude(config)
  check_coderay(config)
  check_maruku(config)

  config
end

#config_files(override) ⇒ Object

Public: Generate list of configuration files from the override

override - the command-line options hash

Returns an Array of config files



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# File 'lib/bunto/configuration.rb', line 146

def config_files(override)
  # Adjust verbosity quickly
  Bunto.logger.adjust_verbosity(
    :quiet   => quiet?(override),
    :verbose => verbose?(override)
  )

  # Get configuration from <source>/_config.yml or <source>/<config_file>
  config_files = override.delete("config")
  if config_files.to_s.empty?
    default = %w(yml yaml).find(-> { "yml" }) do |ext|
      File.exist?(Bunto.sanitized_path(source(override), "_config.#{ext}"))
    end
    config_files = Bunto.sanitized_path(source(override), "_config.#{default}")
    @default_config_file = true
  end
  config_files = [config_files] unless config_files.is_a? Array
  config_files
end

#csv_to_array(csv) ⇒ Object

Public: Split a CSV string into an array containing its values

csv - the string of comma-separated values

Returns an array of the values contained in the CSV



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# File 'lib/bunto/configuration.rb', line 216

def csv_to_array(csv)
  csv.split(",").map(&:strip)
end

#fix_common_issues ⇒ Object 



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# File 'lib/bunto/configuration.rb', line 243

def fix_common_issues
  config = clone

  if config.key?("paginate") && (!config["paginate"].is_a?(Integer) ||
         config["paginate"] < 1)

    Bunto.logger.warn "Config Warning:", "The `paginate` key must be a positive" \
      " integer or nil. It's currently set to '#{config["paginate"].inspect}'."
    config["paginate"] = nil
  end

  config
end

#get_config_value_with_override(config_key, override) ⇒ Object 



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# File 'lib/bunto/configuration.rb', line 105

def get_config_value_with_override(config_key, override)
  override[config_key] || self[config_key] || DEFAULTS[config_key]
end

#quiet(override = {}) ⇒ Object Also known as: quiet? 



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# File 'lib/bunto/configuration.rb', line 118

def quiet(override = {})
  get_config_value_with_override("quiet", override)
end

#read_config_file(file) ⇒ Object

Public: Read configuration and return merged Hash

file - the path to the YAML file to be read in

Returns this configuration, overridden by the values in the file



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# File 'lib/bunto/configuration.rb', line 171

def read_config_file(file)
  next_config = safe_load_file(file)
  check_config_is_hash!(next_config, file)
  Bunto.logger.info "Configuration file:", file
  next_config
rescue SystemCallError
  if @default_config_file ||= nil
    Bunto.logger.warn "Configuration file:", "none"
    {}
  else
    Bunto.logger.error "Fatal:", "The configuration file '#{file}'
      could not be found."
    raise LoadError, "The Configuration file '#{file}' could not be found."
  end
end

#read_config_files(files) ⇒ Object

Public: Read in a list of configuration files and merge with this hash

files - the list of configuration file paths

Returns the full configuration, with the defaults overridden by the values in the configuration files



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# File 'lib/bunto/configuration.rb', line 193

def read_config_files(files)
  configuration = clone

  begin
    files.each do |config_file|
      next if config_file.nil? || config_file.empty?
      new_config = read_config_file(config_file)
      configuration = Utils.deep_merge_hashes(configuration, new_config)
    end
  rescue ArgumentError => err
    Bunto.logger.warn "WARNING:", "Error reading configuration. " \
                 "Using defaults (and options)."
    $stderr.puts err
  end

  configuration.fix_common_issues.backwards_compatibilize.add_default_collections
end

#renamed_key(old, new, config, _ = nil) ⇒ Object 



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# File 'lib/bunto/configuration.rb', line 280

def renamed_key(old, new, config, _ = nil)
  if config.key?(old)
    Bunto::Deprecator.deprecation_message "The '#{old}' configuration" \
      " option has been renamed to '#{new}'. Please update your config" \
      " file accordingly."
    config[new] = config.delete(old)
  end
end

#safe_load_file(filename) ⇒ Object 



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# File 'lib/bunto/configuration.rb', line 128

def safe_load_file(filename)
  case File.extname(filename)
  when %r!\.toml!i
    Bunto::External.require_with_graceful_fail("toml") unless defined?(TOML)
    TOML.load_file(filename)
  when %r!\.ya?ml!i
    SafeYAML.load_file(filename) || {}
  else
    raise ArgumentError, "No parser for '#{filename}' is available.
      Use a .toml or .y(a)ml file instead."
  end
end

#source(override) ⇒ Object

Public: Directory of the Bunto source folder

override - the command-line options hash

Returns the path to the Bunto source directory



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# File 'lib/bunto/configuration.rb', line 114

def source(override)
  get_config_value_with_override("source", override)
end

#stringify_keys ⇒ Object

Public: Turn all keys into string

Return a copy of the hash where all its keys are strings



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# File 'lib/bunto/configuration.rb', line 101

def stringify_keys
  reduce({}) { |hsh, (k, v)| hsh.merge(k.to_s => v) }
end

#verbose(override = {}) ⇒ Object Also known as: verbose? 



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# File 'lib/bunto/configuration.rb', line 123

def verbose(override = {})
  get_config_value_with_override("verbose", override)
end