Support configuring version per profile

lib/mix/tasks/tailwind.install.ex

@@ -2,6 +2,12 @@ defmodule Mix.Tasks.Tailwind.Install do
   @moduledoc """
   Installs Tailwind executable and assets.
 
+  Usage:
+
+      $ mix tailwind.install TASK_OPTIONS BASE_URL
+
+  Example:
+
       $ mix tailwind.install
       $ mix tailwind.install --if-missing
 
@@ -15,9 +21,7 @@ defmodule Mix.Tasks.Tailwind.Install do
   binary (beware that we cannot guarantee the compatibility of any third party
   executable):
 
-  ```bash
-  $ mix tailwind.install https://people.freebsd.org/~dch/pub/tailwind/v3.2.6/tailwindcss-freebsd-x64
-  ```
+      $ mix tailwind.install https://people.freebsd.org/~dch/pub/tailwind/$version/tailwindcss-$target
 
   ## Options
 
@@ -36,44 +40,87 @@ defmodule Mix.Tasks.Tailwind.Install do
 
   @impl true
   def run(args) do
-    valid_options = [runtime_config: :boolean, if_missing: :boolean]
-
-    {opts, base_url} =
-      case OptionParser.parse_head!(args, strict: valid_options) do
-        {opts, []} ->
-          {opts, Tailwind.default_base_url()}
+    {opts, base_url} = parse_arguments(args)
 
-        {opts, [base_url]} ->
-          {opts, base_url}
+    if opts[:runtime_config] do
+      Mix.Task.run("app.config")
+    end
 
-        {_, _} ->
-          Mix.raise("""
-          Invalid arguments to tailwind.install, expected one of:
+    case resolve_versions(opts) do
+      [] -> :ok
+      versions -> install_versions(base_url, versions)
+    end
+  end
 
-              mix tailwind.install
-              mix tailwind.install 'https://github.com/tailwindlabs/tailwindcss/releases/download/v$version/tailwindcss-$target'
-              mix tailwind.install --runtime-config
-              mix tailwind.install --if-missing
-          """)
-      end
+  defp resolve_versions(opts) do
+    for {version, latest?} <- collect_versions(),
+        !(opts[:if_missing] && latest?) do
+      version
+    end
+  end
 
-    if opts[:runtime_config], do: Mix.Task.run("app.config")
+  defp install_versions(base_url, versions) do
+    ensure_install_ready()
 
-    if opts[:if_missing] && latest_version?() do
+    if Enum.all?(versions, &(Tailwind.install(base_url, &1) == :ok)) do
       :ok
     else
-      if function_exported?(Mix, :ensure_application!, 1) do
-        Mix.ensure_application!(:inets)
-        Mix.ensure_application!(:ssl)
-      end
+      :error
+    end
+  end
+
+  defp ensure_install_ready do
+    if function_exported?(Mix, :ensure_application!, 1) do
+      Mix.ensure_application!(:inets)
+      Mix.ensure_application!(:ssl)
+    end
 
-      Mix.Task.run("loadpaths")
-      Tailwind.install(base_url)
+    Mix.Task.run("loadpaths")
+  end
+
+  defp parse_arguments(args) do
+    case OptionParser.parse_head!(args, strict: schema()) do
+      {opts, []} ->
+        {opts, Tailwind.default_base_url()}
+
+      {opts, [base_url]} ->
+        {opts, base_url}
+
+      {_, _} ->
+        Mix.raise("""
+        Invalid arguments to tailwind.install, expected one of:
+
+            mix tailwind.install
+            mix tailwind.install 'https://github.com/tailwindlabs/tailwindcss/releases/download/v$version/tailwindcss-$target'
+            mix tailwind.install --runtime-config
+            mix tailwind.install --if-missing
+        """)
     end
   end
 
-  defp latest_version?() do
+  defp collect_versions do
+    case Tailwind.profiles() do
+      [] ->
+        [{Tailwind.configured_version(), latest_version?()}]
+
+      profiles ->
+        for {profile, _} <- profiles, uniq: true do
+          {Tailwind.configured_version(profile), latest_version?(profile)}
+        end
+    end
+  end
+
+  defp latest_version? do
     version = Tailwind.configured_version()
     match?({:ok, ^version}, Tailwind.bin_version())
   end
+
+  defp latest_version?(profile) do
+    version = Tailwind.configured_version(profile)
+    match?({:ok, ^version}, Tailwind.bin_version(profile))
+  end
+
+  defp schema do
+    [runtime_config: :boolean, if_missing: :boolean]
+  end
 end