compass/lib/compass/actions.rb
2009-10-16 17:35:43 -07:00

117 lines
3.9 KiB
Ruby

module Compass
module Actions
attr_writer :logger
def logger
@logger ||= Logger.new
end
# copy/process a template in the compass template directory to the project directory.
def copy(from, to, options = nil, binary = false)
options ||= self.options if self.respond_to?(:options)
contents = File.new(from).read
write_file to, contents, options, binary
end
# create a directory and all the directories necessary to reach it.
def directory(dir, options = nil)
options ||= self.options if self.respond_to?(:options)
if File.exists?(dir) && File.directory?(dir)
logger.record :exists, basename(dir) unless options[:quiet]
elsif File.exists?(dir)
msg = "#{basename(dir)} already exists and is not a directory."
raise Compass::FilesystemConflict.new(msg)
else
logger.record :directory, separate("#{basename(dir)}/")
FileUtils.mkdir_p(dir) unless options[:dry_run]
end
end
# Write a file given the file contents as a string
def write_file(file_name, contents, options = nil, binary = false)
options ||= self.options if self.respond_to?(:options)
skip_write = options[:dry_run]
contents = process_erb(contents, options[:erb]) if options[:erb]
if File.exists?(file_name)
existing_contents = IO.read(file_name)
if existing_contents == contents
logger.record :identical, basename(file_name)
skip_write = true
elsif options[:force]
logger.record :overwrite, basename(file_name)
else
msg = "File #{basename(file_name)} already exists. Run with --force to force overwrite."
raise Compass::FilesystemConflict.new(msg)
end
else
logger.record :create, basename(file_name)
end
if skip_write
FileUtils.touch file_name unless options[:dry_run]
else
mode = "w"
mode << "b" if binary
open(file_name, mode) do |file|
file.write(contents)
end
end
end
def process_erb(contents, ctx = nil)
ctx = Object.new.instance_eval("binding") unless ctx.is_a? Binding
ERB.new(contents).result(ctx)
end
# Compile one Sass file
def compile(sass_filename, css_filename, options)
if options[:force] || Sass::Plugin.exact_stylesheet_needs_update?(css_filename, sass_filename)
logger.record :compile, basename(sass_filename) unless options[:quiet]
engine = ::Sass::Engine.new(open(sass_filename).read,
:filename => sass_filename,
:line_comments => options[:line_comments],
:style => options[:style],
:css_filename => css_filename,
:load_paths => options[:load_paths],
:cache_location => options[:cache_location])
css_content = engine.render
write_file(css_filename, css_content, options.merge(:force => true))
else
logger.record :unchanged, basename(sass_filename) unless options[:quiet]
end
end
def remove(file_name)
if File.exists?(file_name)
File.unlink file_name
logger.record :remove, basename(file_name)
end
end
def basename(file)
relativize(file) {|f| File.basename(file)}
end
def relativize(path)
if path.index(working_path+File::SEPARATOR) == 0
path[(working_path+File::SEPARATOR).length..-1]
elsif block_given?
yield path
else
path
end
end
# Write paths like we're on unix and then fix it
def separate(path)
path.gsub(%r{/}, File::SEPARATOR)
end
# Removes the trailing separator, if any, from a path.
def strip_trailing_separator(path)
(path[-1..-1] == File::SEPARATOR) ? path[0..-2] : path
end
end
end