kmx.io/dart_sass/README.md

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• Hash : f13bae96
  Author :
  Date : 2021-07-28T16:10:49
  

  Update recommended args for Phoenix

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def deps do
  [
    {:dart_sass, "~> 0.1", runtime: Mix.env() == :dev}
  ]
end

def deps do
  [
    {:dart_sass, "~> 0.1", only: :dev}
  ]
end

config :dart_sass, version: "1.36.0"

$ mix sass.install

$ mix sass default assets/css/app.scss priv/static/assets/app.css

$ mix sass default assets/css/app.scss --load-path=assets/node_modules/bulma priv/static/assets/app.css

config :dart_sass,
  version: "1.36.0",
  default: [
    args: ~w(css/app.scss ../priv/static/assets/app.css),
    cd: Path.expand("../assets", __DIR__)
  ]

def deps do
  [
    {:dart_sass, "~> 0.1", runtime: Mix.env() == :dev}
  ]
end

config :dart_sass,
  version: "1.36.0",
  default: [
    args: ~w(css/app.scss ../priv/static/assets/app.css),
    cd: Path.expand("../assets", __DIR__)
  ]

  sass: {
    DartSass,
    :install_and_run,
    [:default, ~w(--embed-source-map --source-map-urls=absolute --watch)]
  }

"assets.deploy": ["sass default --no-source-map --style=compressed", "phx.digest"]

Source

• README.md

• # DartSass
  
  [![CI](https://github.com/CargoSense/dart_sass/actions/workflows/main.yml/badge.svg)](https://github.com/CargoSense/dart_sass/actions/workflows/main.yml)
  
  Mix tasks for installing and invoking [sass](https://github.com/sass/dart-sass/).
  
  ## Installation
  
  If you are going to build assets in production, then you add
  `dart_sass` as a dependency on all environments but only start it
  in dev:
  
  ```elixir
  def deps do
    [
      {:dart_sass, "~> 0.1", runtime: Mix.env() == :dev}
    ]
  end
  ```
  
  However, if your assets are precompiled during development,
  then it only needs to be a dev dependency:
  
  ```elixir
  def deps do
    [
      {:dart_sass, "~> 0.1", only: :dev}
    ]
  end
  ```
  
  Once installed, change your `config/config.exs` to pick your
  dart_sass version of choice:
  
  ```elixir
  config :dart_sass, version: "1.36.0"
  ```
  
  Now you can install dart-sass by running:
  
  ```bash
  $ mix sass.install
  ```
  
  And invoke sass with:
  
  ```bash
  $ mix sass default assets/css/app.scss priv/static/assets/app.css
  ```
  
  If you need additional load paths you may specify them:
  
  ```bash
  $ mix sass default assets/css/app.scss --load-path=assets/node_modules/bulma priv/static/assets/app.css
  ```
  
  The executable may be kept at `_build/sass`. However in most cases
  running dart-sass requires two files: the portable Dart VM is kept at
  `_build/dart` and the Sass snapshot is kept at `_build/sass.snapshot`.
  
  ## Profiles
  
  The first argument to `dart_sass` is the execution profile.
  You can define multiple execution profiles with the current
  directory, the OS environment, and default arguments to the
  `sass` task:
  
  ```elixir
  config :dart_sass,
    version: "1.36.0",
    default: [
      args: ~w(css/app.scss ../priv/static/assets/app.css),
      cd: Path.expand("../assets", __DIR__)
    ]
  ```
  
  When `mix sass default` is invoked, the task arguments will be appended
  to the ones configured above.
  
  ## Adding to Phoenix
  
  To add `dart_sass` to an application using Phoenix, you need only four steps.
  
  First add it as a dependency in your `mix.exs`:
  
  ```elixir
  def deps do
    [
      {:dart_sass, "~> 0.1", runtime: Mix.env() == :dev}
    ]
  end
  ```
  
  Now let's configure `dart_sass` to use `assets/css/app.scss` as the input file and
  compile CSS to the output location `priv/static/assets/app.css`:
  
  ```elixir
  config :dart_sass,
    version: "1.36.0",
    default: [
      args: ~w(css/app.scss ../priv/static/assets/app.css),
      cd: Path.expand("../assets", __DIR__)
    ]
  ```
  
  > Make sure the "assets" directory from priv/static is listed in the
  > :only option for Plug.Static in your endpoint file at,
  > for instance `lib/my_app_web/endpoint.ex`.
  
  For development, we want to enable watch mode. So find the `watchers`
  configuration in your `config/dev.exs` and add:
  
  ```elixir
    sass: {
      DartSass,
      :install_and_run,
      [:default, ~w(--embed-source-map --source-map-urls=absolute --watch)]
    }
  ```
  
  Note we are embedding source maps with absolute URLs and enabling the file system watcher.
  
  Finally, back in your `mix.exs`, make sure you have an `assets.deploy`
  alias for deployments, which will also use the `--style=compressed` option:
  
  ```elixir
  "assets.deploy": ["sass default --no-source-map --style=compressed", "phx.digest"]
  ```
  
  ## Acknowledgements
  
  This package is based on the excellent [esbuild](https://github.com/phoenixframework/esbuild) by Wojtek Mach and José Valim.
  
  ## License
  
  Copyright (c) 2021 CargoSense, Inc.
  
  dart_sass source code is licensed under the [MIT License](LICENSE.md).
  

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