Docs tests & a refactor

lib/heroicons.ex

@@ -8,42 +8,51 @@ defmodule Heroicons do
 
   @doc false
   defmacro __before_compile__(%Macro.Env{module: module}) do
-    unless Module.has_attribute?(module, :icon_path) do
-      raise CompileError, description: "@icon_path attrubute is required"
+    unless Module.has_attribute?(module, :icon_dir) do
+      raise CompileError, description: "@icon_dir attrubute is required"
     end
 
+    icon_dir = Module.get_attribute(module, :icon_dir)
+
     icon_paths =
-      Module.get_attribute(module, :icon_path)
+      Path.absname(icon_dir, :code.priv_dir(:heroicons))
       |> Path.join("*.svg")
       |> Path.wildcard()
 
     for path <- icon_paths do
-      name =
-        Path.basename(path, ".svg")
-        |> String.replace("-", "_")
-        |> String.to_atom()
+      generate_function(path)
+    end
+  end
 
-      quote do
-        @doc """
-        ![](#{unquote(path)}) {: width=24px}
+  @doc false
+  def generate_function(path) do
+    name =
+      Path.basename(path, ".svg")
+      |> String.replace("-", "_")
+      |> String.to_atom()
 
-        ## Examples
-            iex> #{unquote(name)}()
-            iex> #{unquote(name)}(class: "h-6 w-6 text-gray-500")
-        """
-        @spec unquote(name)(keyword(binary)) :: binary
-        def unquote(name)(opts \\ []) do
-          icon = File.read!(unquote(path))
-          {i, _} = :binary.match(icon, ">")
+    doc = """
+    ![](assets/#{Path.relative_to(path, :code.priv_dir(:heroicons))}) {: width=24px}
 
-          {head, tail} = String.split_at(icon, i)
+    ## Examples
+        iex> #{name}()
+        iex> #{name}(class: "h-6 w-6 text-gray-500")
+    """
 
-          attrs =
-            opts
-            |> Enum.map_join(fn {k, v} -> ~s( #{k}="#{v}") end)
+    quote do
+      @doc unquote(doc)
+      @spec unquote(name)(keyword(binary)) :: binary
+      def unquote(name)(opts \\ []) do
+        icon = File.read!(unquote(path))
+        {i, _} = :binary.match(icon, ">")
 
-          head <> attrs <> tail
-        end
+        {head, tail} = String.split_at(icon, i)
+
+        attrs =
+          opts
+          |> Enum.map_join(fn {k, v} -> ~s( #{k}="#{v}") end)
+
+        head <> attrs <> tail
       end
     end
   end

lib/heroicons/outline.ex

@@ -4,6 +4,6 @@ defmodule Heroicons.Outline do
 
   For primary navigation and marketing sections, designed to be rendered at 24x24.
   """
-  @icon_path "#{:code.priv_dir(:heroicons)}/outline/"
+  @icon_dir "outline/"
   @before_compile Heroicons
 end

lib/heroicons/solid.ex

@@ -5,6 +5,6 @@ defmodule Heroicons.Solid do
   For buttons, form elements, and to support text, designed to be rendered at 20x20.
   """
 
-  @icon_path "#{:code.priv_dir(:heroicons)}/solid/"
+  @icon_dir "solid/"
   @before_compile Heroicons
 end