Class: Haml::Exec::SassConvert
Overview
The sass-convert
executable.
Instance Method Summary collapse
-
#initialize(args) ⇒ SassConvert
constructor
A new instance of SassConvert.
- #process_directory
- #process_file(input, output)
-
#process_result
Processes the options set by the command-line arguments, and runs the CSS compiler appropriately.
-
#set_opts(opts)
Tells optparse how to parse the arguments.
Methods inherited from Generic
#color, #get_line, #parse, #parse!, #puts_action, #to_s
Constructor Details
#initialize(args) ⇒ SassConvert
Returns a new instance of SassConvert.
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# File 'lib/haml/exec.rb', line 570
def initialize(args)
super
@options[:for_tree] = {}
@options[:for_engine] = {}
end
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Instance Method Details
#process_directory
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# File 'lib/haml/exec.rb', line 657
def process_directory
input = @options[:input] = @args.shift
output = @options[:output] = @args.shift
raise "Error: --from required when using --recursive." unless @options[:from]
raise "Error: --to required when using --recursive." unless @options[:to]
raise "Error: '#{@options[:input]}' is not a directory" unless File.directory?(@options[:input])
if @options[:output] && File.exists?(@options[:output]) && !File.directory?(@options[:output])
raise "Error: '#{@options[:output]}' is not a directory"
end
@options[:output] ||= @options[:input]
ext = @options[:from]
ext = :sass if ext == :sass2
Dir.glob("#{@options[:input]}/**/*.#{ext}") do |f|
output =
if @options[:in_place]
f
elsif @options[:output]
output_name = f.gsub(/\.(c|sa|sc)ss$/, ".#{@options[:to]}")
output_name[0...@options[:input].size] = @options[:output]
output_name
else
f.gsub(/\.(c|sa|sc)ss$/, ".#{@options[:to]}")
end
unless File.directory?(File.dirname(output))
puts_action :directory, :green, File.dirname(output)
FileUtils.mkdir_p(File.dirname(output))
end
puts_action :convert, :green, f
if File.exists?(output)
puts_action :overwrite, :yellow, output
else
puts_action :create, :green, output
end
input = open_file(f)
output = @options[:in_place] ? input : open_file(output, "w")
process_file(input, output)
end
end
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#process_file(input, output)
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# File 'lib/haml/exec.rb', line 699
def process_file(input, output)
if input.is_a?(File)
@options[:from] ||=
case input.path
when /\.scss$/; :scss
when /\.sass$/; :sass
when /\.css$/; :css
end
elsif @options[:in_place]
raise "Error: the --in-place option requires a filename."
end
if output.is_a?(File)
@options[:to] ||=
case output.path
when /\.scss$/; :scss
when /\.sass$/; :sass
end
end
if @options[:from] == :sass2
@options[:from] = :sass
@options[:for_engine][:sass2] = true
end
@options[:from] ||= :css
@options[:to] ||= :sass
@options[:for_engine][:syntax] = @options[:from]
out =
::Haml::Util.silence_haml_warnings do
if @options[:from] == :css
require 'sass/css'
::Sass::CSS.new(input.read, @options[:for_tree]).render(@options[:to])
else
if input.is_a?(File)
::Sass::Files.tree_for(input.path, @options[:for_engine])
else
::Sass::Engine.new(input.read, @options[:for_engine]).to_tree
end.send("to_#{@options[:to]}", @options[:for_tree])
end
end
output = File.open(input.path, 'w') if @options[:in_place]
output.write(out)
rescue ::Sass::SyntaxError => e
raise e if @options[:trace]
raise "Syntax error on line #{get_line e}: #{e.message}\n Use --trace for backtrace"
end
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#process_result
Processes the options set by the command-line arguments, and runs the CSS compiler appropriately.
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# File 'lib/haml/exec.rb', line 641
def process_result
require 'sass'
if @options[:recursive]
process_directory
return
end
super
input = @options[:input]
raise "Error: '#{input}' is a directory (did you mean to use --recursive?)" if File.directory?(input)
output = @options[:output]
output = input if @options[:in_place]
process_file(input, output)
end
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#set_opts(opts)
Tells optparse how to parse the arguments.
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# File 'lib/haml/exec.rb', line 579
def set_opts(opts)
opts.banner = <<END
Usage: sass-convert [options] [INPUT] [OUTPUT]
Description:
Converts between CSS, Sass, and SCSS files.
E.g. converts from SCSS to Sass,
or converts from CSS to SCSS (adding appropriate nesting).
Options:
END
opts.on('-F', '--from FORMAT',
'The format to convert from. Can be css, scss, sass, or sass2.',
'sass2 is the same as sass, but updates more old syntax to new.',
'By default, this is inferred from the input filename.',
'If there is none, defaults to css.') do |name|
@options[:from] = name.downcase.to_sym
unless [:css, :scss, :sass, :sass2].include?(@options[:from])
raise "Unknown format for sass-convert --from: #{name}"
end
end
opts.on('-T', '--to FORMAT',
'The format to convert to. Can be scss or sass.',
'By default, this is inferred from the output filename.',
'If there is none, defaults to sass.') do |name|
@options[:to] = name.downcase.to_sym
unless [:scss, :sass].include?(@options[:to])
raise "Unknown format for sass-convert --to: #{name}"
end
end
opts.on('-R', '--recursive',
'Convert all the files in a directory. Requires --from and --to.') do
@options[:recursive] = true
end
opts.on('-i', '--in-place',
'Convert a file to its own syntax.',
'This can be used to update some deprecated syntax.') do
@options[:in_place] = true
end
opts.on('--dasherize', 'Convert underscores to dashes') do
@options[:for_tree][:dasherize] = true
end
opts.on('--old', 'Output the old-style ":prop val" property syntax.',
'Only meaningful when generating Sass.') do
@options[:for_tree][:old] = true
end
opts.on('-C', '--no-cache', "Don't cache to sassc files.") do
@options[:for_engine][:cache] = false
end
super
end
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