nix-on-droid/pkgs/nix-directory.nix
2022-12-04 17:04:17 +01:00

67 lines
2.1 KiB
Nix

# Copyright (c) 2019-2022, see AUTHORS. Licensed under MIT License, see LICENSE.
{ config, lib, stdenv, closureInfo, prootTermux, proot, pkgsStatic }:
let
buildRootDirectory = "root-directory";
prootCommand = lib.concatStringsSep " " [
"${proot}/bin/proot"
"-b ${pkgsStatic.nix}:/static-nix"
"-r ${buildRootDirectory}"
"-w /"
];
prootTermuxClosure = closureInfo {
rootPaths = [
prootTermux
];
};
in
stdenv.mkDerivation {
name = "nix-directory";
src = builtins.fetchurl {
url = "https://nixos.org/releases/nix/nix-2.11.1/nix-2.11.1-${config.build.arch}-linux.tar.xz";
sha256 = "1cvdvka4qs1zx916g23pi9i024sx9h28nv8pvngxh3nk8gm8bvxq";
};
PROOT_NO_SECCOMP = 1; # see https://github.com/proot-me/PRoot/issues/106
buildPhase = ''
mkdir --parents ${buildRootDirectory}/nix
cp --recursive store ${buildRootDirectory}/nix/store
CACERT=$(find ${buildRootDirectory}/nix/store -path '*-nss-cacert-*/ca-bundle.crt' | sed 's,^${buildRootDirectory},,')
PKG_BASH=$(find ${buildRootDirectory}/nix/store -path '*/bin/bash' | sed 's,^${buildRootDirectory},,')
PKG_BASH=''${PKG_BASH%/bin/bash}
PKG_NIX=$(find ${buildRootDirectory}/nix/store -path '*/bin/nix' | sed 's,^${buildRootDirectory},,')
PKG_NIX=''${PKG_NIX%/bin/nix}
for i in $(< ${prootTermuxClosure}/store-paths); do
cp --archive "$i" "${buildRootDirectory}$i"
done
USER=${config.user.userName} ${prootCommand} "/static-nix/bin/nix-store" --init
USER=${config.user.userName} ${prootCommand} "/static-nix/bin/nix-store" --load-db < .reginfo
USER=${config.user.userName} ${prootCommand} "/static-nix/bin/nix-store" --load-db < ${prootTermuxClosure}/registration
cat > package-info.nix <<EOF
{
bash = "$PKG_BASH";
cacert = "$CACERT";
nix = "$PKG_NIX";
}
EOF
'';
installPhase = ''
mkdir $out
cp --recursive ${buildRootDirectory}/nix/store $out/store
cp --recursive ${buildRootDirectory}/nix/var $out/var
install -D -m 0644 package-info.nix $out/nix-support/package-info.nix
'';
fixupPhase = "true";
}