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{ writeTextFile, stdenv, ruby } : { env, runScript } :
let
name = env.pname;
# Sandboxing script
chroot-user = writeTextFile {
name = "chroot-user";
executable = true;
destination = "/bin/chroot-user";
text = ''
#! ${ruby}/bin/ruby
${builtins.readFile ./chroot-user.rb}
'';
};
in stdenv.mkDerivation {
name = "${name}-userenv";
buildInputs = [ ruby ];
preferLocalBuild = true;
buildCommand = ''
mkdir -p $out/bin
cat > $out/bin/${name} <<EOF
#! ${stdenv.shell}
exec ${chroot-user}/bin/chroot-user ${env} $out/libexec/run "\$@"
EOF
chmod +x $out/bin/${name}
mkdir -p $out/libexec
cat > $out/libexec/run <<EOF
#! ${stdenv.shell}
source /etc/profile
${runScript} "\$@"
EOF
chmod +x $out/libexec/run
'';
}
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