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buildRebar3: enable deterministic builds #434713

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Merged
adamcstephens merged 2 commits into from
Aug 18, 2025
Merged

buildRebar3: enable deterministic builds #434713

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c81c8af
buildRebar3: remove enableDebugInfo attr
kivikakk Aug 18, 2025
bccaba9
buildRebar3: add erlangDeterministicBuilds
kivikakk Aug 18, 2025
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14 changes: 11 additions & 3 deletions pkgs/development/beam-modules/build-rebar3.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -21,13 +21,15 @@
buildPhase ? null,
configurePhase ? null,
meta ? { },
enableDebugInfo ? false,
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
debugInfoFlag = lib.optionalString (enableDebugInfo || erlang.debugInfo) "debug-info";

rebar3 = rebar3WithPlugins {
plugins = buildPlugins;
};
Expand Down Expand Up @@ -67,6 +69,12 @@ let

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
Expand Down
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