123 lines
4.3 KiB
Nix
123 lines
4.3 KiB
Nix
{
|
|
description = "My flake";
|
|
|
|
inputs = {
|
|
nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1";
|
|
flake-utils.url = "github:numtide/flake-utils";
|
|
};
|
|
|
|
outputs =
|
|
{
|
|
self,
|
|
nixpkgs,
|
|
flake-utils,
|
|
}:
|
|
flake-utils.lib.eachDefaultSystem (
|
|
system:
|
|
let
|
|
pkgs = import nixpkgs { inherit system; };
|
|
in
|
|
{
|
|
bundlers = rec {
|
|
proot-bundler =
|
|
drv:
|
|
pkgs.stdenvNoCC.mkDerivation {
|
|
name = "myApp.run";
|
|
nativeBuildInputs = [
|
|
pkgs.nix
|
|
pkgs.coreutils
|
|
pkgs.findutils
|
|
pkgs.gnutar
|
|
pkgs.gzip
|
|
pkgs.patchelf
|
|
];
|
|
# patch proot as you described
|
|
prootPatched = pkgs.proot.overrideAttrs (_: {
|
|
postFixup = ''
|
|
exe=$out/bin/proot
|
|
${pkgs.patchelf}/bin/patchelf \
|
|
--set-interpreter ."$(${pkgs.patchelf}/bin/patchelf --print-interpreter $exe)" \
|
|
--set-rpath "$(${pkgs.patchelf}/bin/patchelf --print-rpath $exe | sed 's|/nix/store/|./nix/store/|g')" \
|
|
$exe
|
|
'';
|
|
});
|
|
|
|
buildCommand = ''
|
|
set -euo pipefail
|
|
# 1) Make payload dir that mirrors the bundle runtime layout
|
|
PAY="$PWD/payload"
|
|
mkdir -p "$PAY/nix/store"
|
|
|
|
# include app + patched proot in the payload closure
|
|
app=${drv}
|
|
proot=${
|
|
self.bundlers.${system}.selfExtracting.prootPatched or ""
|
|
} # not callable; we want the attr above
|
|
proot=${
|
|
pkgs.proot.overrideAttrs (_: {
|
|
postFixup = "${pkgs.patchelf}/bin/patchelf --set-interpreter .\"$(${pkgs.patchelf}/bin/patchelf --print-interpreter $out/bin/proot)\" --set-rpath \"$( ${pkgs.patchelf}/bin/patchelf --print-rpath $out/bin/proot | sed 's|/nix/store/|./nix/store/|g')\" $out/bin/proot";
|
|
})
|
|
}
|
|
|
|
# copy closure of app + proot into ./nix/store
|
|
paths=$( ${pkgs.nix}/bin/nix-store --query --requisites "$app" "$proot" )
|
|
for p in $paths; do
|
|
cp -a --no-preserve=ownership "$p" "$PAY/nix/store/"
|
|
done
|
|
|
|
# discover targets for the launcher
|
|
APP_BIN=$(find "$app/bin" -maxdepth 1 -type f -perm -111 | head -n1)
|
|
APP_REL="/nix/store/$(basename "$(dirname "$APP_BIN")")/$(basename "$APP_BIN")"
|
|
PROOT_REL="/nix/store/$(basename "$proot")/bin/proot"
|
|
|
|
# 2) Tar.gz the payload
|
|
( cd "$PAY" && tar -czf "$PWD/payload.tar.gz" . )
|
|
|
|
# 3) Assemble a self-extracting script at $out
|
|
cat > $out <<'SH'
|
|
#!/bin/sh
|
|
set -euf
|
|
# extract to temp dir
|
|
: "''${TMPDIR:=/tmp}"
|
|
EXTRACT_DIR="$(mktemp -d "''${TMPDIR%/}/nxbdl.XXXXXX")"
|
|
cleanup() { [ -n "''${KEEP_BUNDLE:-}" ] || rm -rf "$EXTRACT_DIR"; }
|
|
trap cleanup EXIT INT TERM
|
|
|
|
# locate embedded archive (line after marker)
|
|
ARCHIVE_LINE=$(awk '/^__ARCHIVE_BELOW__/ {print NR+1; exit 0}' "$0")
|
|
tail -n +$ARCHIVE_LINE "$0" | tar -xzf - -C "$EXTRACT_DIR"
|
|
|
|
cd "$EXTRACT_DIR"
|
|
# vars substituted by bundler at build time:
|
|
APP_REL='__APP_REL__'
|
|
PROOT_REL='__PROOT_REL__'
|
|
|
|
# run via proot
|
|
BUNDLE_PWD="''${BUNDLE_PWD:-$PWD}"
|
|
exec ".$PROOT_REL" \
|
|
-b ./nix:nix \
|
|
-R / \
|
|
-w "$BUNDLE_PWD" \
|
|
".$APP_REL" "$@"
|
|
|
|
__ARCHIVE_BELOW__
|
|
SH
|
|
|
|
# substitute the program + proot paths into the stub
|
|
sed -i \
|
|
-e "s|__APP_REL__|$APP_REL|g" \
|
|
-e "s|__PROOT_REL__|$PROOT_REL|g" \
|
|
$out
|
|
chmod +x $out
|
|
|
|
# 4) Append the payload bytes after the marker
|
|
cat payload.tar.gz >> $out
|
|
'';
|
|
};
|
|
|
|
default = proot-bundler;
|
|
};
|
|
}
|
|
);
|
|
}
|