diff options
Diffstat (limited to 'install.sh')
| -rwxr-xr-x | install.sh | 79 |
1 files changed, 55 insertions, 24 deletions
@@ -1,37 +1,68 @@ #!/bin/sh set -eu -hostname="${1:-$(hostname)}" -root="${2:-}" - -_sudo() { - if [ "$(id -u)" -ne 0 ]; then - "$@" - else - sudo -p 'Sudo password: ' -- "$@" - fi -} - -if [ "$hostname" = "nixos" ]; then - echo "The hostname is the default one, that is not right for sure." >&2 - echo "Please specify the correct hostname as the first argument!" >&2 +hostname="$1" +root="${2:-$(pwd)}" +src="$(readlink -f "${0%/*}")" + +if [ "$(id -u)" -ne 0 ]; then + echo "Run this as root!" >&2 exit 1 fi +if ! command -v git >/dev/null; then + exec nix shell 'nixpkgs#git' -c "$0" "$@" +fi + if [ ! -s "$root/.personal-secrets.key" ]; then echo "Please paste the personal secret key (terminate using ^D)" >&2 sudo tee "$root/.personal-secrets.key" >/dev/null fi -eval "$(ssh-agent)" -echo "Please paste the SSH access key now (terminate using ^D):" >&2 -ssh-add - -trap 'kill "$SSH_AGENT_PID"' EXIT +if [ -f "$src/flake.nix" ]; then + flake="$src" +else + flake="git+https://git.cynerd.cz/nixos-personal" + eval "$(ssh-agent)" + echo "Please paste the SSH access key now (terminate using ^D):" >&2 + ssh-add - + trap 'kill "$SSH_AGENT_PID"' EXIT +fi + +buildSystem="$(nix eval --raw --impure --expr 'builtins.currentSystem')" +targetSystem="$(nix eval --raw "$flake#nixosConfigurations.$hostname.pkgs.system")" -flake="git+https://git.cynerd.cz/nixos-personal#$hostname" -if [ -z "$root" ]; then - nix shell nixpkgs\#git --command \ - "_sudo \"\$(command -v nixos-rebuild)\" switch --flake '$flake' --fast" +toplevel="config.system.build.toplevel" +if [ "$buildSystem" != "$targetSystem" ]; then + toplevel="config.system.build.cross.$buildSystem.$toplevel" +fi + +if [ -f "$src/flake.nix" ]; then + # Build in system when running from sources + result="$(nix build --no-link --print-out-paths \ + "$flake#nixosConfigurations.$hostname.$toplevel")" + nix copy --to "$root" "$result" else - nix shell nixpkgs\#git nixpkgs\#nixos-install-tools --command \ - "_sudo \"\$(command -v nixos-install)\" --flake '$flake' --root '$root'" + result="$(nix build --no-link --print-out-paths \ + "$flake#nixosConfigurations.$hostname.$toplevel" \ + --store "$root" --extra-substituters 'auto?trusted=1')" +fi + +nix-env --store "$root" --extra-substituters 'auto?trusted=1' \ + -p "$root/nix/var/nix/profiles/system" --set "$result" + +# Mark the target as a NixOS installation, otherwise switch-to-configuration will chicken out. +mkdir -m 0755 -p "$root/etc" +touch "$root/etc/NIXOS" + +# Copy over binfmt runners if required +if [ "$buildSystem" != "$targetSystem" ]; then + mkdir -p "$root/run/binfmt" + for binfmt in /run/binfmt/*; do + nix copy --to "$root" "$(readlink -f "$binfmt")" + ln -sf "$(readlink -f "$binfmt")" "$root/$binfmt" + done fi + +ln -sfn /proc/mounts "$root/etc/mtab" # Grub needs an mtab. +NIXOS_INSTALL_BOOTLOADER=1 nixos-enter --root "$root" -- \ + /nix/var/nix/profiles/system/bin/switch-to-configuration boot |