defmodule Mix.Tasks.Sass.Install do
@moduledoc """
Installs dart-sass under `_build`.
```bash
$ mix sass.install
$ mix sass.install --if-missing
```
By default, it installs #{DartSass.latest_version()} but you
can configure it in your config files, such as:
config :dart_sass, :version, "#{DartSass.latest_version()}"
You can pass the `--if-missing` flag to only install it if
one does not yet exist.
"""
@shortdoc "Installs dart-sass under _build"
use Mix.Task
@impl true
def run(args) do
case OptionParser.parse_head!(args, strict: [if_missing: :boolean]) do
{opts, []} ->
if opts[:if_missing] && DartSass.installed?() do
:ok
else
if Code.ensure_loaded?(Mix.Tasks.App.Config) do
Mix.Task.run("app.config")
end
DartSass.install()
end
{_, _} ->
Mix.raise("""
Invalid arguments to sass.install, expected one of:
mix sass.install
mix sass.install --if-missing
""")
end
end
end
