c118bb4f9a
Remove the implicit dependency on `elixir` being somewhere in `PATH`.
Before:
```
$ nix build '.#elixir_1_15'
$ ./result/bin/mix --version
env: ‘elixir’: No such file or directory
```
After:
```
$ nix build '.#elixir_1_15'
$ ./result/bin/mix --version
Erlang/OTP 25 [erts-13.2.2.2] [source] [64-bit] [smp:10:10] [ds:10:10:10] [async-threads:1] [jit]
Mix 1.15.2 (compiled with Erlang/OTP 25)
```
This was caused by the shebang interpreter directive being set to
`${coreutils}/bin/env elixir`, whereas now the `elixir` part is replaced
with the full path to the interpreter.
We can't get rid of the `${coreutils}/bin/env` part, because without it
all scripts are interpreted as shell scripts.
80 lines
2 KiB
Nix
80 lines
2 KiB
Nix
{ pkgs
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, lib
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, stdenv
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, fetchFromGitHub
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, erlang
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, makeWrapper
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, coreutils
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, curl
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, bash
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, debugInfo ? false
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}:
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{ baseName ? "elixir"
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, version
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, minimumOTPVersion
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, sha256 ? null
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, rev ? "v${version}"
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, src ? fetchFromGitHub { inherit rev sha256; owner = "elixir-lang"; repo = "elixir"; }
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, escriptPath ? "lib/elixir/generate_app.escript"
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} @ args:
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let
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inherit (lib) getVersion versionAtLeast optional;
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in
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assert versionAtLeast (getVersion erlang) minimumOTPVersion;
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stdenv.mkDerivation ({
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pname = "${baseName}";
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inherit src version debugInfo;
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nativeBuildInputs = [ makeWrapper ];
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buildInputs = [ erlang ];
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LANG = "C.UTF-8";
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LC_TYPE = "C.UTF-8";
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buildFlags = optional debugInfo "ERL_COMPILER_OPTIONS=debug_info";
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preBuild = ''
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patchShebangs ${escriptPath} || true
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substituteInPlace Makefile \
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--replace "/usr/local" $out
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'';
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postFixup = ''
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# Elixir binaries are shell scripts which run erl. Add some stuff
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# to PATH so the scripts can run without problems.
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for f in $out/bin/*; do
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b=$(basename $f)
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if [ "$b" = mix ]; then continue; fi
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wrapProgram $f \
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--prefix PATH ":" "${lib.makeBinPath [ erlang coreutils curl bash ]}"
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done
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substituteInPlace $out/bin/mix \
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--replace "/usr/bin/env elixir" "${coreutils}/bin/env $out/bin/elixir"
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'';
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pos = builtins.unsafeGetAttrPos "sha256" args;
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meta = with lib; {
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homepage = "https://elixir-lang.org/";
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description = "A functional, meta-programming aware language built on top of the Erlang VM";
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longDescription = ''
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Elixir is a functional, meta-programming aware language built on
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top of the Erlang VM. It is a dynamic language with flexible
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syntax and macro support that leverages Erlang's abilities to
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build concurrent, distributed and fault-tolerant applications
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with hot code upgrades.
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'';
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license = licenses.epl10;
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platforms = platforms.unix;
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maintainers = teams.beam.members;
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};
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})
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