2a9336b426
The Elixir LS package in Nixpkgs by default used the latest Elixir
version available to compile and run Elixir LS. The user can build
a custom Elixir LS package with a different Elixir version:
my-custom-elixir-ls = pkgs.elixir-ls.override {
elixir = my-custom-elixir;
};
But by doing so the user changes only the Elixir version used to
run Elixir LS; the Elixir version used to compile Elixir LS doesn't
change. As the result, the custom Elixir LS package uses a different
Elixir version at runtime than the Elixir version it was compiled with.
In order to be able to modify the Elixir version used at build time,
I changed `mixRelease` and `fetchMixDeps` to accept `elixir` and
`hex` as parameters (defaults to the latest Elixir and Hex packages).
60 lines
1.5 KiB
Nix
60 lines
1.5 KiB
Nix
{ stdenvNoCC, lib, elixir, hex, rebar, rebar3, cacert, git }@inputs:
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{ pname
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, version
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, sha256
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, src
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, mixEnv ? "prod"
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, debug ? false
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, meta ? { }
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, patches ? []
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, elixir ? inputs.elixir
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, hex ? inputs.hex.override { inherit elixir; }
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, ...
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}@attrs:
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stdenvNoCC.mkDerivation (attrs // {
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nativeBuildInputs = [ elixir hex cacert git ];
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MIX_ENV = mixEnv;
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MIX_DEBUG = if debug then 1 else 0;
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DEBUG = if debug then 1 else 0; # for rebar3
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# the api with `mix local.rebar rebar path` makes a copy of the binary
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MIX_REBAR = "${rebar}/bin/rebar";
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MIX_REBAR3 = "${rebar3}/bin/rebar3";
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# there is a persistent download failure with absinthe 1.6.3
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# those defaults reduce the failure rate
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HEX_HTTP_CONCURRENCY = 1;
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HEX_HTTP_TIMEOUT = 120;
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configurePhase = attrs.configurePhase or ''
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runHook preConfigure
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export HEX_HOME="$TEMPDIR/.hex";
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export MIX_HOME="$TEMPDIR/.mix";
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export MIX_DEPS_PATH="$TEMPDIR/deps";
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# Rebar
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export REBAR_GLOBAL_CONFIG_DIR="$TMPDIR/rebar3"
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export REBAR_CACHE_DIR="$TMPDIR/rebar3.cache"
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runHook postConfigure
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'';
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inherit patches;
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dontBuild = true;
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installPhase = attrs.installPhase or ''
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runHook preInstall
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mix deps.get --only ${mixEnv}
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find "$TEMPDIR/deps" -path '*/.git/*' -a ! -name HEAD -exec rm -rf {} +
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cp -r --no-preserve=mode,ownership,timestamps $TEMPDIR/deps $out
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runHook postInstall
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'';
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outputHashAlgo = "sha256";
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outputHashMode = "recursive";
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outputHash = sha256;
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impureEnvVars = lib.fetchers.proxyImpureEnvVars;
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inherit meta;
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})
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