beamPackages: turn on debug_info for beam packages

This allows you to turn on debug infor for all the beam packages in the
system with a single change at the top level. This is required for
debugging and dialyzer work. It also allows you to switch it on on a
package by package basis.

1 files changed, 5 insertions, 2 deletions

diff --git a/pkgs/development/beam-modules/build-rebar3.nix b/pkgs/development/beam-modules/build-rebar3.nix
index abf2d1188ddc..ac40b76a78af 100644
--- a/pkgs/development/beam-modules/build-rebar3.nix
+++ b/pkgs/development/beam-modules/build-rebar3.nix
@@ -1,5 +1,5 @@
 { stdenv, writeText, erlang, rebar3, openssl, libyaml,
-  pc, buildEnv }:
+  pc, buildEnv, lib }:
 
 { name, version
 , src
@@ -11,11 +11,14 @@
 , buildPhase ? null
 , configurePhase ? null
 , meta ? {}
+, enableDebugInfo ? false
 , ... }@attrs:
 
 with stdenv.lib;
 
 let
+  debugInfoFlag = lib.optionalString (enableDebugInfo || erlang.debugInfo) "debug-info";
+
   ownPlugins = buildPlugins ++ (if compilePorts then [pc] else []);
 
   shell = drv: stdenv.mkDerivation {
@@ -51,7 +54,7 @@ let
     configurePhase = if configurePhase == null
     then ''
       runHook preConfigure
-      ${erlang}/bin/escript ${rebar3.bootstrapper}
+      ${erlang}/bin/escript ${rebar3.bootstrapper} ${debugInfoFlag}
       runHook postConfigure
     ''
     else configurePhase;