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# frozen_string_literal: true
require 'slim'
module Slim
# Handles inlined includes
#
# Slim files are compiled, non-Slim files are included as text with `#{interpolation}`
#
# @api private
class Include < Slim::Filter
define_options :file, include_dirs: [Dir.pwd, '.']
def on_html_tag(tag, attributes, content = nil)
return super if tag != 'include'
name = content.to_a.flatten.select {|s| String === s }.join
raise ArgumentError, 'Invalid include statement' unless attributes == [:html, :attrs] && !name.empty?
unless file = find_file(name)
name = "#{name}.slim" if name !~ /\.slim\Z/i
file = find_file(name)
end
raise Temple::FilterError, "'#{name}' not found in #{options[:include_dirs].join(':')}" unless file
content = File.read(file)
if file =~ /\.slim\Z/i
Thread.current[:slim_include_engine].call(content)
else
[:slim, :interpolate, content]
end
end
protected
def find_file(name)
current_dir = File.dirname(File.expand_path(options[:file]))
options[:include_dirs].map {|dir| File.expand_path(File.join(dir, name), current_dir) }.find {|file| File.file?(file) }
end
end
class Engine
after Slim::Parser, Slim::Include
after Slim::Include, :stop do |exp|
throw :stop, exp if Thread.current[:slim_include_level] > 1
exp
end
# @api private
alias call_without_include call
# @api private
def call(input)
Thread.current[:slim_include_engine] = self
Thread.current[:slim_include_level] ||= 0
Thread.current[:slim_include_level] += 1
catch(:stop) { call_without_include(input) }
ensure
Thread.current[:slim_include_engine] = nil if (Thread.current[:slim_include_level] -= 1) == 0
end
end
end
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