{ stdenv, writeText, erlang, rebar3WithPlugins, openssl, libyaml, lib, }: { name, version, src, setupHook ? null, buildInputs ? [ ], beamDeps ? [ ], buildPlugins ? [ ], postPatch ? "", installPhase ? null, buildPhase ? null, configurePhase ? null, meta ? { }, erlangCompilerOptions ? [ ], # Deterministic Erlang builds remove full system paths from debug information # among other things to keep builds more reproducible. See their docs for more: # https://www.erlang.org/doc/man/compile erlangDeterministicBuilds ? true, ... }@attrs: let rebar3 = rebar3WithPlugins { plugins = buildPlugins; }; shell = drv: stdenv.mkDerivation { name = "interactive-shell-${drv.name}"; buildInputs = [ drv ]; }; customPhases = lib.filterAttrs (_: v: v != null) { inherit setupHook configurePhase buildPhase installPhase ; }; pkg = self: stdenv.mkDerivation ( attrs // { name = "${name}-${version}"; inherit version; buildInputs = buildInputs ++ [ erlang rebar3 openssl libyaml ]; propagatedBuildInputs = lib.unique beamDeps; inherit src; ERL_COMPILER_OPTIONS = let options = erlangCompilerOptions ++ lib.optionals erlangDeterministicBuilds [ "deterministic" ]; in "[${lib.concatStringsSep "," options}]"; # stripping does not have any effect on beam files # it is however needed for dependencies with NIFs # false is the default but we keep this for readability dontStrip = false; setupHook = writeText "setupHook.sh" '' addToSearchPath ERL_LIBS "$1/lib/erlang/lib/" ''; postPatch = '' rm -f rebar rebar3 '' + postPatch; preConfigure = '' # Copy the source so it can be used by mix projects # do this before building to avoid build artifacts but after patching # to include any modifications mkdir -p $out/src cp -r "." "$out/src" ''; buildPhase = '' runHook preBuild HOME=. rebar3 bare compile --paths "." runHook postBuild ''; installPhase = '' runHook preInstall mkdir -p "$out/lib/erlang/lib/${name}-${version}" for reldir in src ebin priv include; do [ -d "$reldir" ] || continue # $out/lib/erlang/lib is a convention used in nixpkgs for compiled BEAM packages cp -Hrt "$out/lib/erlang/lib/${name}-${version}" "$reldir" done runHook postInstall ''; meta = { inherit (erlang.meta) platforms; } // meta; passthru = { packageName = name; env = shell self; inherit beamDeps; }; } // customPhases ); in lib.fix pkg