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https://github.com/nix-community/nix-on-droid.git
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76 lines
2.5 KiB
Nix
76 lines
2.5 KiB
Nix
# Copyright (c) 2019-2024, see AUTHORS. Licensed under MIT License, see LICENSE.
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{ config, lib, stdenv, closureInfo, prootTermux, proot, pkgsStatic }:
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let
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buildRootDirectory = "root-directory";
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prootCommand = lib.concatStringsSep " " [
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"${proot}/bin/proot"
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"-b ${pkgsStatic.nix}:/static-nix"
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"-b /proc:/proc" # needed because tries to access /proc/self/exe
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"-r ${buildRootDirectory}"
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"-w /"
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];
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prootTermuxClosure = closureInfo {
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rootPaths = [
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prootTermux
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];
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};
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in
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stdenv.mkDerivation {
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name = "nix-directory";
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src = builtins.fetchurl {
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url = "https://nixos.org/releases/nix/nix-2.20.5/nix-2.20.5-${config.build.arch}-linux.tar.xz";
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sha256 =
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let
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archShas = {
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aarch64 = "sha256:168wjfj3xsc8hq1y6cq59iipjp1g9hmj4n5wdn9c47ad9gbc9cvh";
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x86_64 = "sha256:0dax9n562ldj53ap6lz0cwwsfx4d8j1267g9s6lg3zs237yyzw61";
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};
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in
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archShas.${config.build.arch};
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};
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PROOT_NO_SECCOMP = 1; # see https://github.com/proot-me/PRoot/issues/106
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buildPhase = ''
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# create nix state directory to satisfy nix heuristics to recognize the manual create /nix directory as valid nix store
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mkdir --parents ${buildRootDirectory}/nix/var/nix/db
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cp --recursive store ${buildRootDirectory}/nix/store
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CACERT=$(find ${buildRootDirectory}/nix/store -path '*-nss-cacert-*/ca-bundle.crt' | sed 's,^${buildRootDirectory},,')
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PKG_BASH=$(find ${buildRootDirectory}/nix/store -path '*/bin/bash' | sed 's,^${buildRootDirectory},,')
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PKG_BASH=''${PKG_BASH%/bin/bash}
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PKG_NIX=$(find ${buildRootDirectory}/nix/store -path '*/bin/nix' | sed 's,^${buildRootDirectory},,')
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PKG_NIX=''${PKG_NIX%/bin/nix}
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for i in $(< ${prootTermuxClosure}/store-paths); do
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cp --archive "$i" "${buildRootDirectory}$i"
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done
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USER=${config.user.userName} ${prootCommand} "/static-nix/bin/nix-store" --init
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USER=${config.user.userName} ${prootCommand} "/static-nix/bin/nix-store" --load-db < .reginfo
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USER=${config.user.userName} ${prootCommand} "/static-nix/bin/nix-store" --load-db < ${prootTermuxClosure}/registration
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cat > package-info.nix <<EOF
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{
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bash = "$PKG_BASH";
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cacert = "$CACERT";
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nix = "$PKG_NIX";
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}
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EOF
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'';
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installPhase = ''
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mkdir $out
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cp --recursive ${buildRootDirectory}/nix/store $out/store
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cp --recursive ${buildRootDirectory}/nix/var $out/var
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install -D -m 0644 package-info.nix $out/nix-support/package-info.nix
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'';
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fixupPhase = "true";
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}
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