nixpkgs/pkgs/development/interpreters/lua-5/wrapper.nix
Matthieu Coudron 88842910b5 lua: introduced a lua lib
Goal is to improve separation between packages and utilities.
Can help with autocompletion/navigate nixpkgs faster.
Also it will help standardize how LUA_PATH is exported across packages,
so that one can more easily make lua changes across nixpkgs (for
    instance changing where lua modules are installed).
2021-09-12 03:03:56 +02:00

77 lines
2.1 KiB
Nix

{ lib, stdenv, lua, buildEnv, makeWrapper
, extraLibs ? []
, extraOutputsToInstall ? []
, postBuild ? ""
, ignoreCollisions ? false
, requiredLuaModules
, makeWrapperArgs ? []
}:
# Create a lua executable that knows about additional packages.
let
env = let
paths = requiredLuaModules (extraLibs ++ [ lua ] );
in buildEnv {
name = "${lua.name}-env";
inherit paths;
inherit ignoreCollisions;
extraOutputsToInstall = [ "out" ] ++ extraOutputsToInstall;
nativeBuildInputs = [
makeWrapper
(lua.pkgs.lua-setup-hook lua.LuaPathSearchPaths lua.LuaCPathSearchPaths)
];
# we create wrapper for the binaries in the different packages
postBuild = ''
if [ -L "$out/bin" ]; then
unlink "$out/bin"
fi
mkdir -p "$out/bin"
addToLuaPath "$out"
# take every binary from lua packages and put them into the env
for path in ${lib.concatStringsSep " " paths}; do
nix_debug "looking for binaries in path = $path"
if [ -d "$path/bin" ]; then
cd "$path/bin"
for prg in *; do
if [ -f "$prg" ]; then
rm -f "$out/bin/$prg"
if [ -x "$prg" ]; then
nix_debug "Making wrapper $prg"
makeWrapper "$path/bin/$prg" "$out/bin/$prg" \
--set-default LUA_PATH ";;" \
--suffix LUA_PATH ';' "$LUA_PATH" \
--set-default LUA_CPATH ";;" \
--suffix LUA_CPATH ';' "$LUA_CPATH" \
${lib.concatStringsSep " " makeWrapperArgs}
fi
fi
done
fi
done
'' + postBuild;
inherit (lua) meta;
passthru = lua.passthru // {
interpreter = "${env}/bin/lua";
inherit lua;
env = stdenv.mkDerivation {
name = "interactive-${lua.name}-environment";
nativeBuildInputs = [ env ];
buildCommand = ''
echo >&2 ""
echo >&2 "*** lua 'env' attributes are intended for interactive nix-shell sessions, not for building! ***"
echo >&2 ""
exit 1
'';
};
};
};
in env