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|
{ lib, pkgs, ... }:
with lib;
let
subdirs = mapAttrs (_: flip pkgs.callPackage {}) (subdirsOf ./.);
pkgs' = pkgs // subdirs;
in
subdirs // rec {
haskellPackages = pkgs.haskellPackages.override {
overrides = self: super:
mapAttrs (name: path: self.callPackage path {})
(mapAttrs'
(name: type:
if hasSuffix ".nix" name
then {
name = removeSuffix ".nix" name;
value = ./haskell-overrides + "/${name}";
}
else null)
(builtins.readDir ./haskell-overrides));
};
push = pkgs'.callPackage ./push {
inherit (subdirs) get jq;
};
execve = name: { filename, argv, envp ? {}, destination ? "" }:
writeC name { inherit destination; } ''
#include <unistd.h>
int main () {
const char *filename = ${toC filename};
char *const argv[] = ${toC (argv ++ [null])};
char *const envp[] = ${toC (
mapAttrsToList (k: v: "${k}=${v}") envp ++ [null]
)};
execve(filename, argv, envp);
return -1;
}
'';
execveBin = name: cfg: execve name (cfg // { destination = "/bin/${name}"; });
writeC = name: { destination ? "" }: src: pkgs.runCommand name {} ''
PATH=${makeSearchPath "bin" (with pkgs; [
binutils
coreutils
gcc
])}
src=${pkgs.writeText "${name}.c" src}
exe=$out${destination}
mkdir -p "$(dirname "$exe")"
gcc -O -Wall -o "$exe" $src
strip --strip-unneeded "$exe"
'';
writeNixFromCabal = name: path: pkgs.runCommand name {} ''
${pkgs.cabal2nix}/bin/cabal2nix ${path} > $out
'';
}
|
