defmodule Mix.Tasks.Tailwind.Install do
@moduledoc """
Installs tailwind under `_build`.
```bash
$ mix tailwind.install
$ mix tailwind.install --if-missing
```
By default, it installs #{Tailwind.latest_version()} but you
can configure it in your config files, such as:
config :tailwind, :version, "#{Tailwind.latest_version()}"
## Options
* `--runtime-config` - load the runtime configuration
before executing command
* `--if-missing` - install only if the given version
does not exist
"""
@shortdoc "Installs tailwind under _build"
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
Tailwind.install()
end
{_, _} ->
Mix.raise("""
Invalid arguments to tailwind.install, expected one of:
mix tailwind.install
mix tailwind.install --runtime-config
mix tailwind.install --if-missing
""")
end
end
defp latest_version?() do
version = Tailwind.configured_version()
match?({:ok, ^version}, Tailwind.bin_version())
end
end