erlfmt: init at 1.0.0

pkgs/development/beam-modules/default.nix

@@ -38,6 +38,7 @@ let
       mixRelease = callPackage ./mix-release.nix { };
 
       erlang-ls = callPackage ./erlang-ls { };
+      erlfmt = callPackage ./erlfmt { };
 
       # BEAM-based languages.
       elixir = elixir_1_12;

pkgs/development/beam-modules/erlfmt/default.nix

@@ -0,0 +1,20 @@
+{ fetchFromGitHub, rebar3Relx, lib }:
+
+rebar3Relx rec {
+  name = "erlfmt";
+  version = "1.0.0";
+  releaseType = "escript";
+  src = fetchFromGitHub {
+    owner = "WhatsApp";
+    repo = "erlfmt";
+    sha256 = "19apbs9xr4j8qjb3sv9ilknqjw4a7bvp8jvwrjiwvwnxzzm2kjm6";
+    rev = "v${version}";
+  };
+  meta = with lib; {
+    homepage = "https://github.com/WhatsApp/erlfmt";
+    description = "An automated code formatter for Erlang";
+    platforms = platforms.unix;
+    license = licenses.asl20;
+    maintainers = with lib.maintainers; [ dlesl ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -12317,7 +12317,7 @@ in
   erlang_nox = beam_nox.interpreters.erlang;
 
   inherit (beam.packages.erlang)
-    erlang-ls
+    erlang-ls erlfmt
     rebar rebar3 rebar3WithPlugins
     fetchHex beamPackages;