nixpkgs/pkgs/development/beam-modules/build-rebar3.nix

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{ stdenv, writeText, erlang, rebar3WithPlugins, openssl, libyaml, lib }:
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{ name
, version
, src
, setupHook ? null
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, buildInputs ? [ ]
, beamDeps ? [ ]
, buildPlugins ? [ ]
, postPatch ? ""
, installPhase ? null
, buildPhase ? null
, configurePhase ? null
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, meta ? { }
, enableDebugInfo ? false
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, ...
}@attrs:
let
debugInfoFlag = lib.optionalString (enableDebugInfo || erlang.debugInfo) "debug-info";
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rebar3 = rebar3WithPlugins {
plugins = buildPlugins;
};
shell = drv: stdenv.mkDerivation {
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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;
# 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" ''
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addToSearchPath ERL_LIBS "$1/lib/erlang/lib/"
'';
postPatch = ''
rm -f rebar rebar3
'' + postPatch;
buildPhase = ''
runHook preBuild
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HOME=. rebar3 bare compile -path ""
runHook postBuild
'';
installPhase = ''
runHook preInstall
mkdir -p "$out/lib/erlang/lib/${name}-${version}"
for reldir in src ebin priv include; do
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[ -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