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# encoding: utf-8 module Nanoc3 module Errors # Generic error. Superclass for all nanoc-specific errors. class Generic < ::StandardError end # Error that is raised when a site is loaded that uses a data source with # an unknown identifier. class UnknownDataSource < Generic def initialize(data_source_name) super("The data source specified in the site's configuration file, #{data_source_name}, does not exist.") end end # Error that is raised during site compilation when an item uses a layout # that is not present in the site. class UnknownLayout < Generic def initialize(layout_identifier) super("The site does not have a layout with identifier '#{layout_identifier}'.") end end # Error that is raised during site compilation when an item uses a filter # that is not known. class UnknownFilter < Generic def initialize(filter_name) super("The requested filter, #{filter_name}, does not exist.") end end # Error that is raised during site compilation when a layout is compiled # for which the filter cannot be determined. This is similar to the # UnknownFilterError, but specific for filters for layouts. class CannotDetermineFilter < Generic def initialize(layout_identifier) super("The filter to be used for the '#{layout_identifier}' could not be determined. Make sure the layout does have a filter.") end end # Error that is raised when data is requested when the data is not yet # available (possibly due to a missing Nanoc::Site#load_data). class DataNotYetAvailable < Generic def initialize(type, plural) super("#{type} #{plural ? 'are' : 'is'} not available yet. You may be missing a Nanoc::Site#load_data call.") end end # Error that is raised during site compilation when an item (directly or # indirectly) includes its own item content, leading to endless recursion. class RecursiveCompilation < Generic def initialize(reps) super("The site cannot be compiled because the following items mutually depend on each other: #{reps.inspect}.") end end # Error that is raised when no rules file can be found in the current # working directory. class NoRulesFileFound < Generic def initialize super("This site does not have a rules file, which is required for nanoc sites.") end end # Error that is raised when no compilation rule that can be applied to the # current item can be found. class NoMatchingCompilationRuleFound < Generic def initialize(rep) super("No compilation rules were found for the '#{rep.item.identifier}' item (rep '#{rep.name}').") end end # Error that is raised when no routing rule that can be applied to the # current item can be found. class NoMatchingRoutingRuleFound < Generic def initialize(rep) super("No routing rules were found for the '#{rep.item.identifier}' item (rep '#{rep.name}').") end end # Error that is raised when an rep cannot be compiled because it depends on other representations. class UnmetDependency < Generic attr_reader :rep def initialize(rep) @rep = rep super("The '#{rep.item.identifier}' item (rep '#{rep.name}') cannot currently be compiled yet due to an unmet dependency.") end end end end

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