compass/lib/compass/exec.rb

188 lines
6.0 KiB
Ruby

require 'optparse'
require 'rubygems'
require 'haml'
require File.join(Compass.lib_directory, 'compass', 'logger')
require File.join(Compass.lib_directory, 'compass', 'errors')
require File.join(Compass.lib_directory, 'compass', 'actions')
module Compass
module Exec
def report_error(e, options)
$stderr.puts "#{e.class} on line #{get_line e} of #{get_file e}: #{e.message}"
if options[:trace]
e.backtrace[1..-1].each { |t| $stderr.puts " #{t}" }
else
$stderr.puts "Run with --trace to see the full backtrace"
end
end
def get_file(exception)
exception.backtrace[0].split(/:/, 2)[0]
end
def get_line(exception)
# SyntaxErrors have weird line reporting
# when there's trailing whitespace,
# which there is for Haml documents.
return exception.message.scan(/:(\d+)/)[0] if exception.is_a?(::Haml::SyntaxError)
exception.backtrace[0].scan(/:(\d+)/)[0]
end
module_function :report_error, :get_file, :get_line
class Compass
attr_accessor :args, :options, :opts
def initialize(args)
self.args = args
self.options = {}
parse!
end
def run!
begin
perform!
rescue Exception => e
raise e if e.is_a? SystemExit
if e.is_a?(::Compass::Error) || e.is_a?(OptionParser::ParseError)
$stderr.puts e.message
else
::Compass::Exec.report_error(e, @options)
end
return 1
end
return 0
end
protected
def perform!
if options[:command]
do_command(options[:command])
else
puts self.opts
end
end
def parse!
self.opts = OptionParser.new(&method(:set_opts))
self.opts.parse!(self.args)
if self.args.size > 0
self.options[:project_name] = trim_trailing_separator(self.args.shift)
end
self.options[:command] ||= self.options[:project_name] ? :create_project : :update_project
self.options[:framework] ||= :compass
self.options[:project_type] ||= :stand_alone
end
def trim_trailing_separator(path)
path[-1..-1] == File::SEPARATOR ? path[0..-2] : path
end
def set_opts(opts)
opts.banner = <<END
Usage: compass [options] [project]
Description:
When project is given, generates a new project of that name as a subdirectory of
the current directory.
If you change any source files, you can update your project using --update.
Options:
END
opts.on('-u', '--update', :NONE, 'Update the current project') do
self.options[:command] = :update_project
end
opts.on('-w', '--watch', :NONE, 'Monitor the current project for changes and update') do
self.options[:command] = :watch_project
end
opts.on('--sass-dir SRC_DIR', "The source directory where you keep your sass stylesheets.") do |sass_dir|
self.options[:sass_dir] = sass_dir
end
opts.on('--css-dir CSS_DIR', "The target directory where you keep your css stylesheets.") do |css_dir|
self.options[:css_dir] = css_dir
end
opts.on('--list-frameworks', "List compass frameworks available to use.") do
self.options[:command] = :list_frameworks
end
opts.on('-c', '--write-configuration', "Write the current configuration to the configuration file.") do
self.options[:command] = :write_configuration
end
opts.on('-f FRAMEWORK', '--framework FRAMEWORK', 'Set up a new project using the specified framework.') do |framework|
self.options[:framework] = framework
end
opts.on('-e ENV', '--environment ENV', [:development, :production], 'Use sensible defaults for your current environment: development, production (default)') do |env|
self.options[:environment] = env
end
opts.on('-s STYLE', '--output-style STYLE', [:nested, :expanded, :compact, :compressed], 'Select a CSS output mode (nested, expanded, compact, compressed)') do |style|
self.options[:output_style] = style
end
opts.on('-r LIBRARY', '--require LIBRARY', "Require LIBRARY before running commands. This is used to access compass plugins.") do |library|
require library
end
opts.on('--rails', "Sets the project type to a rails project.") do
self.options[:project_type] = :rails
end
opts.on('-q', '--quiet', :NONE, 'Quiet mode.') do
self.options[:quiet] = true
end
opts.on('--dry-run', :NONE, 'Dry Run. Tells you what it plans to do.') do
self.options[:dry_run] = true
end
opts.on('--trace', :NONE, 'Show a full stacktrace on error') do
self.options[:trace] = true
end
opts.on('--force', :NONE, 'Force. Allows some commands to succeed when they would otherwise fail.') do
self.options[:force] = true
end
opts.on('--imports', :NONE, 'Emit an import path suitable for use with the Sass command-line tool.') do
#XXX cross platform support?
print ::Compass::Frameworks::ALL.map{|f| "-I #{f.stylesheets_directory}"}.join(' ')
exit
end
opts.on('--validate', :NONE, 'Validate your project\'s compiled css') do
self.options[:command] = :validate_project
end
opts.on_tail("-?", "-h", "--help", "Show this message") do
puts opts
exit
end
opts.on_tail("-v", "--version", "Print version") do
self.options[:command] = :print_version
end
end
def do_command(command)
command_class_name = command.to_s.split(/_/).map{|p| p.capitalize}.join('')
command_class = eval("::Compass::Commands::#{command_class_name}")
command_class.new(Dir.getwd, options).perform
end
end
end
end
Dir.glob(File.join(File.dirname(__FILE__), 'commands', "*.rb")).each do |file|
require file
end