Ruby, SASS, Compass instalacja

https://sass-lang.com/                     - strona główna sass
https://sass-lang.com/install              - Dart sass - command line
https://github.com/sass/sassc-ruby#readme  - gem, plugin, do framewroków

# compass compile [path/to/project]    - kompilacja ręczna do .css

# compass watch [path/to/project]      - automatyczna, monitorowanie zmian
# cat config.rb
require 'compass/import-once/activate'

# Set this to the root of your project when deployed:
http_path = "/"
css_dir = "stylesheets"
sass_dir = "sass"
images_dir = "images"
javascripts_dir = "javascripts"
# compass create my_project

directory test_project/
directory test_project/sass/
directory test_project/stylesheets/
create test_project/config.rb
create test_project/sass/screen.scss
create test_project/sass/print.scss
create test_project/sass/ie.scss
write test_project/stylesheets/ie.css
write test_project/stylesheets/print.css
write test_project/stylesheets/screen.css

-- przykład dołączenia plików css projektu
<head>
  <link href="/stylesheets/screen.css" media="screen, projection" rel="stylesheet" type="text/css" />
  <link href="/stylesheets/print.css" media="print" rel="stylesheet" type="text/css" />
  <!--[if IE]>
    <link href="/stylesheets/ie.css" media="screen, projection" rel="stylesheet" type="text/css" />
  <![endif]-->
</head>

# sass -v
Ruby Sass 3.7.4

# compass -v
Compass 1.0.3 (Polaris)
# apt install ruby-full

# gem install sass

# gem install compass