depot/third_party/nixpkgs/pkgs/os-specific/linux/nixos-rebuild/test/repl.nix
Default email 23b612e36f Project import generated by Copybara.
GitOrigin-RevId: ae5c332cbb5827f6b1f02572496b141021de335f
2024-01-25 23:12:00 +09:00

146 lines
3.5 KiB
Nix

{ lib,
expect,
nix,
nixos-rebuild,
path,
runCommand,
stdenv,
writeText,
}:
let
# Arguably not true, but it holds up for now.
escapeExpect = lib.strings.escapeNixString;
expectSetup = ''
set timeout 180
proc expect_simple { pattern } {
puts "Expecting: $pattern"
expect {
timeout {
puts "\nTimeout waiting for: $pattern\n"
exit 1
}
$pattern
}
}
'';
# In case we want/need to evaluate packages or the assertions or whatever,
# we want to have a linux system.
# TODO: make the non-flake test use thise.
linuxSystem = lib.replaceStrings ["darwin"] ["linux"] stdenv.hostPlatform.system;
in
runCommand "test-nixos-rebuild-repl" {
nativeBuildInputs = [
expect
nix
nixos-rebuild
];
nixpkgs =
if builtins.pathExists (path + "/.git")
then lib.cleanSource path
else path;
} ''
export HOME=$(mktemp -d)
export TEST_ROOT=$PWD/test-tmp
# Prepare for running Nix in sandbox
export NIX_BUILD_HOOK=
export NIX_CONF_DIR=$TEST_ROOT/etc
export NIX_LOCALSTATE_DIR=$TEST_ROOT/var
export NIX_LOG_DIR=$TEST_ROOT/var/log/nix
export NIX_STATE_DIR=$TEST_ROOT/var/nix
export NIX_STORE_DIR=$TEST_ROOT/store
export PAGER=cat
mkdir -p $TEST_ROOT $NIX_CONF_DIR
echo General setup
##################
export NIX_PATH=nixpkgs=$nixpkgs:nixos-config=$HOME/configuration.nix
cat >> ~/configuration.nix <<EOF
{
boot.loader.grub.enable = false;
fileSystems."/".device = "x";
imports = [ ./hardware-configuration.nix ];
}
EOF
echo '{ }' > ~/hardware-configuration.nix
echo Test traditional NixOS configuration
#########################################
expect ${writeText "test-nixos-rebuild-repl-expect" ''
${expectSetup}
spawn nixos-rebuild repl --fast
expect "nix-repl> "
send "config.networking.hostName\n"
expect "\"nixos\""
''}
echo Test flake based NixOS configuration
#########################################
# Switch to flake flavored environment
unset NIX_PATH
cat > $NIX_CONF_DIR/nix.conf <<EOF
experimental-features = nix-command flakes
EOF
# Make the config pure
echo '{ nixpkgs.hostPlatform = "${linuxSystem}"; }' > ~/hardware-configuration.nix
cat >~/flake.nix <<EOF
{
inputs.nixpkgs.url = "path:$nixpkgs";
outputs = { nixpkgs, ... }: {
nixosConfigurations.testconf = nixpkgs.lib.nixosSystem {
modules = [
./configuration.nix
# Let's change it up a bit
{ networking.hostName = "itsme"; }
];
};
};
}
EOF
# cat -n ~/flake.nix
expect ${writeText "test-nixos-rebuild-repl-expect" ''
${expectSetup}
spawn sh -c "nixos-rebuild repl --fast --flake path:\$HOME#testconf"
expect_simple "nix-repl>"
send "config.networking.hostName\n"
expect_simple "itsme"
expect_simple "nix-repl>"
send "lib.version\n"
expect_simple ${escapeExpect (
# The version string is a bit different in the flake lib, so we expect a prefix and ignore the rest
# Furthermore, including the revision (suffix) would cause unnecessary rebuilds.
# Note that a length of 4 only matches e.g. "24.
lib.strings.substring 0 4 (lib.strings.escapeNixString lib.version))}
# Make sure it's the right lib - should be the flake lib, not Nixpkgs lib.
expect_simple "nix-repl>"
send "lib?nixosSystem\n"
expect_simple "true"
expect_simple "nix-repl>"
send "lib?nixos\n"
expect_simple "true"
''}
echo
#########
echo Done
touch $out
''