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# encoding: UTF-8
module Jekyll
class Configuration < Hash
# Default options. Overridden by values in _config.yml.
# Strings rather than symbols are used for compatibility with YAML.
DEFAULTS = 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" => %w(
Gemfile Gemfile.lock node_modules vendor/bundle/ vendor/cache/ vendor/gems/
vendor/ruby/
),
"keep_files" => [".git", ".svn"],
"encoding" => "utf-8",
"markdown_ext" => "markdown,mkdown,mkdn,mkd,md",
"strict_front_matter" => false,
# Filtering Content
"show_drafts" => nil,
"limit_posts" => 0,
"future" => false,
"unpublished" => false,
# Plugins
"whitelist" => [],
"plugins" => [],
# 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" => nil, # this mounts at /, i.e. no subdirectory
"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 << self
# 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.
def from(user_config)
Utils.deep_merge_hashes(DEFAULTS, Configuration[user_config].stringify_keys)
.fix_common_issues.add_default_collections
end
end
# Public: Turn all keys into string
#
# Return a copy of the hash where all its keys are strings
def stringify_keys
reduce({}) { |hsh, (k, v)| hsh.merge(k.to_s => v) }
end
def get_config_value_with_override(config_key, override)
override[config_key] || self[config_key] || DEFAULTS[config_key]
end
# Public: Directory of the Jekyll source folder
#
# override - the command-line options hash
#
# Returns the path to the Jekyll source directory
def source(override)
get_config_value_with_override("source", override)
end
def quiet(override = {})
get_config_value_with_override("quiet", override)
end
alias_method :quiet?, :quiet
def verbose(override = {})
get_config_value_with_override("verbose", override)
end
alias_method :verbose?, :verbose
def safe_load_file(filename)
case File.extname(filename)
when %r!\.toml!i
Jekyll::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 .y(a)ml or .toml file instead."
end
end
# Public: Generate list of configuration files from the override
#
# override - the command-line options hash
#
# Returns an Array of config files
def config_files(override)
# Adjust verbosity quickly
Jekyll.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?(Jekyll.sanitized_path(source(override), "_config.#{ext}"))
end
config_files = Jekyll.sanitized_path(source(override), "_config.#{default}")
@default_config_file = true
end
config_files = [config_files] unless config_files.is_a? Array
config_files
end
# 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
def read_config_file(file)
next_config = safe_load_file(file)
check_config_is_hash!(next_config, file)
Jekyll.logger.info "Configuration file:", file
next_config
rescue SystemCallError
if @default_config_file ||= nil
Jekyll.logger.warn "Configuration file:", "none"
{}
else
Jekyll.logger.error "Fatal:", "The configuration file '#{file}'
could not be found."
raise LoadError, "The Configuration file '#{file}' could not be found."
end
end
# 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
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
Jekyll.logger.warn "WARNING:", "Error reading configuration. " \
"Using defaults (and options)."
$stderr.puts err
end
configuration.fix_common_issues.backwards_compatibilize.add_default_collections
end
# 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
def csv_to_array(csv)
csv.split(",").map(&:strip)
end
# Public: Ensure the proper options are set in the configuration to allow for
# backwards-compatibility with Jekyll pre-1.0
#
# Returns the backwards-compatible configuration
def backwards_compatibilize
config = clone
# Provide backwards-compatibility
check_auto(config)
check_server(config)
check_plugins(config)
renamed_key "server_port", "port", config
renamed_key "gems", "plugins", 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
def fix_common_issues
config = clone
if config.key?("paginate") && (!config["paginate"].is_a?(Integer) ||
config["paginate"] < 1)
Jekyll.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
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
def renamed_key(old, new, config, _ = nil)
if config.key?(old)
Jekyll::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
private
def style_to_permalink(permalink_style)
case permalink_style.to_sym
when :pretty
"/:categories/:year/:month/:day/:title/"
when :none
"/:categories/:title:output_ext"
when :date
"/:categories/:year/:month/:day/:title:output_ext"
when :ordinal
"/:categories/:year/:y_day/:title:output_ext"
else
permalink_style.to_s
end
end
# Private: Checks if a given config is a hash
#
# extracted_config - the value to check
# file - the file from which the config was extracted
#
# Raises an ArgumentError if given config is not a hash
private
def check_config_is_hash!(extracted_config, file)
unless extracted_config.is_a?(Hash)
raise ArgumentError, "Configuration file: (INVALID) #{file}".yellow
end
end
private
def check_auto(config)
if config.key?("auto") || config.key?("watch")
Jekyll::Deprecator.deprecation_message "Auto-regeneration can no longer" \
" be set from your configuration file(s). Use the" \
" --[no-]watch/-w command-line option instead."
config.delete("auto")
config.delete("watch")
end
end
private
def check_server(config)
if config.key?("server")
Jekyll::Deprecator.deprecation_message "The 'server' configuration option" \
" is no longer accepted. Use the 'jekyll serve'" \
" subcommand to serve your site with WEBrick."
config.delete("server")
end
end
private
def check_pygments(config)
if config.key?("pygments")
Jekyll::Deprecator.deprecation_message "The 'pygments' configuration option" \
" has been renamed to 'highlighter'. Please update your" \
" config file accordingly. The allowed values are 'rouge', " \
"'pygments' or null."
config["highlighter"] = "pygments" if config["pygments"]
config.delete("pygments")
end
end
private
def check_include_exclude(config)
%w(include exclude).each do |option|
if config[option].is_a?(String)
Jekyll::Deprecator.deprecation_message "The '#{option}' configuration option" \
" must now be specified as an array, but you specified" \
" a string. For now, we've treated the string you provided" \
" as a list of comma-separated values."
config[option] = csv_to_array(config[option])
end
config[option].map!(&:to_s) if config[option]
end
end
private
def check_coderay(config)
if (config["kramdown"] || {}).key?("use_coderay")
Jekyll::Deprecator.deprecation_message "Please change 'use_coderay'" \
" to 'enable_coderay' in your configuration file."
config["kramdown"]["use_coderay"] = config["kramdown"].delete("enable_coderay")
end
end
private
def check_maruku(config)
if config.fetch("markdown", "kramdown").to_s.casecmp("maruku").zero?
Jekyll.logger.abort_with "Error:", "You're using the 'maruku' " \
"Markdown processor, which has been removed as of 3.0.0. " \
"We recommend you switch to Kramdown. To do this, replace " \
"`markdown: maruku` with `markdown: kramdown` in your " \
"`_config.yml` file."
end
end
# Private: Checks if the `plugins` config is a String
#
# config - the config hash
#
# Raises a Jekyll::Errors::InvalidConfigurationError if the config `plugins`
# is a string
private
def check_plugins(config)
if config.key?("plugins") && config["plugins"].is_a?(String)
Jekyll.logger.error "Configuration Error:", "You specified the" \
" `plugins` config in your configuration file as a string, please" \
" use an array instead. If you wanted to set the directory of your" \
" plugins, use the config key `plugins_dir` instead."
raise Jekyll::Errors::InvalidConfigurationError,
"'plugins' should not be a string, but was: " \
"#{config["plugins"].inspect}. Use 'plugins_dir' instead."
end
end
end
end