Adds build modes (#496)

* adds release modes and a test for it

* tests release modes

* changes to 0.13.3

lib/zig/_module.ex

@@ -36,6 +36,7 @@ defmodule Zig.Module do
                 :c,
                 :dir,
                 :easy_c,
+                release_mode: :debug,
                 language: Elixir,
                 nifs: {:auto, []},
                 ignore: [],
@@ -68,6 +69,7 @@ defmodule Zig.Module do
           c: C.opts() | C.t(),
           dir: Path.t(),
           easy_c: Path.t(),
+          release_mode: release_modes(),
           language: Elixir | :erlang,
           nifs: {:auto, Nif.opts()} | Nif.opts() | [Nif.t()],
           ignore: [atom()],
@@ -83,6 +85,7 @@ defmodule Zig.Module do
           attributes: keyword
         }
 
+  @type release_modes :: :debug | :safe | :fast | :small
   @type packagespec() :: {name :: atom(), {path :: Path.t(), deps :: [atom]}}
   # NB: this is going to become more complex for security reasons.
   @type precompiledspec() :: Path.t()

lib/zig/command.ex

@@ -102,7 +102,7 @@ defmodule Zig.Command do
 
     lib_dir = Path.join(so_dir, "lib")
 
-    run_zig("build --prefix #{so_dir}", cd: staging_directory, stderr_to_stdout: true)
+    run_zig("build -Doptimize=#{release_mode(module)} --prefix #{so_dir}", cd: staging_directory, stderr_to_stdout: true)
 
     src_lib_name = Path.join(lib_dir, src_lib_name(module.module))
     dst_lib_name = Path.join(lib_dir, dst_lib_name(module.module))
@@ -124,6 +124,21 @@ defmodule Zig.Command do
     run_zig("targets", [])
   end
 
+  @release_modes %{
+    debug: "Debug",
+    fast: "ReleaseFast",
+    small: "ReleaseSmall",
+    safe: "ReleaseSafe"
+  }
+
+  def release_mode(%{release_mode: :env}) do
+    System.fetch_env!("ZIGLER_RELEASE_MODE")
+  end
+
+  def release_mode(module) do
+    Map.fetch!(@release_modes, module.release_mode)
+  end
+
   def executable_path do
     # executable_path resolves zig executable in the following fashion:
     #

mix.exs

@@ -8,7 +8,7 @@ defmodule Zigler.MixProject do
 
     [
       app: :zigler,
-      version: "0.13.2",
+      version: "0.13.3",
       elixir: "~> 1.14",
       start_permanent: env == :prod,
       elixirc_paths: elixirc_paths(env),

test/corner_cases/release_mode_test.exs

@@ -0,0 +1,14 @@
+defmodule ZiglerTest.CornerCases.ReleaseMode do
+  use ExUnit.Case, async: true
+  use Zig, otp_app: :zigler, release_mode: :safe
+
+  ~Z"""
+  pub fn add(a: u32, b: u32) u32 {
+      return a + b;
+  }
+  """
+
+  test "release mode safe works" do
+    assert 48 = add(47, 1)
+  end
+end