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require 'guard'
require 'guard/guard'
require 'lib/handlebars/handlebars'
require 'fileutils'
module Guard
class JST < Guard
DEFAULT_OPTIONS = {
:hide_success => false,
:all_on_start => false
}
# Initialize Guard::JST.
#
# @param [Array<Guard::Watcher>] watchers the watchers in the Guard block
# @param [Hash] options the options for the Guard
# @option options [String] :input the input directory
# @option options [String] :output the output directory
# @option options [Boolean] :hide_success hide success message notification
# @option options [Boolean] :all_on_start generate all JavaScripts files on start
#
def initialize(watchers = [], options = {})
watchers = [] if !watchers
defaults = DEFAULT_OPTIONS.clone
if options[:input]
defaults.merge!({ :output => options[:input] })
watchers << ::Guard::Watcher.new(%r{^#{ options[:input] }/(.+\.handlebars)$})
end
super(watchers, defaults.merge(options))
end
# Gets called once when Guard starts.
#
# @raise [:task_has_failed] when stop has failed
#
def start
run_all if options[:all_on_start]
end
# Gets called when watched paths and files have changes.
#
# @param [Array<String>] paths the changed paths and files
# @raise [:task_has_failed] when stop has failed
#
# Compiles templates from app/views/jst to public/javascripts/jst
def run_on_change(paths)
Parallel.each(paths, :in_threads => Parallel.processor_count) do |path|
begin
puts "Compiling: #{path}"
Handlebars.compile_file path, 'app/views/jst', @options[:output]
rescue Exception => e
::Guard::Notifier.notify(e.to_s, :title => path.sub('app/views/jst/', ''), :image => :failed)
end
end
end
# Gets called when all files should be regenerated.
#
# @raise [:task_has_failed] when stop has failed
#
def run_all
UI.info "pre-compiling all handlebars templates in #{@options[:input]} to #{@options[:output]}"
FileUtils.rm_r @options[:output] if File.exists?(@options[:output])
Handlebars.compile @options[:input], @options[:output]
end
# Called on file(s) deletions that the Guard watches.
#
# @param [Array<String>] paths the deleted files or paths
# @raise [:task_has_failed] when run_on_change has failed
#
def run_on_deletion(paths)
raise "doesnt work "
# paths.each do |file|
# javascript = file.gsub(/(js\.coffee|coffee)$/, 'js')
# File.remove(javascript) if File.exists?(javascript)
# end
end
end
end
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