defmodule Mix.Tasks.LightningCss.Install do
@moduledoc """
Installs lightning_css under `_build`.
```bash
$ mix lightning_css.install
$ mix lightning_css.install --if-missing
```
By default, it installs #{LightningCSS.Versions.latest()} but you
can configure it in your config files, such as:
config :lightning_css, :version, "#{LightningCSS.Versions.latest()}"
## Options
* `--runtime-config` - load the runtime configuration
before executing command
* `--if-missing` - install only if the given version
does not exist
"""
@shortdoc "Installs lightning_css under _build"
@compile {:no_warn_undefined, Mix}
use Mix.Task
@impl true
def run(args) do
valid_options = [runtime_config: :boolean, if_missing: :boolean]
case OptionParser.parse_head!(args, strict: valid_options) do
{opts, []} ->
if opts[:runtime_config], do: Mix.Task.run("app.config")
if opts[:if_missing] && latest_version?() do
:ok
else
# credo:disable-for-next-line
if function_exported?(Mix, :ensure_application!, 1) do
# ensure_application! ensures that the given application and its dependencies are availble
# in the path
Mix.ensure_application!(:inets)
Mix.ensure_application!(:ssl)
end
LightningCSS.Installer.install()
end
{_, _} ->
Mix.raise("""
Invalid arguments to lightning_css.install, expected one of:
mix lightning_css.install
mix lightning_css.install --runtime_config dev
mix lightning_css.install --if-missing
""")
end
end
defp latest_version?() do
version = LightningCSS.Versions.to_use()
match?({:ok, ^version}, LightningCSS.Versions.bin())
end
end