1 files changed, 68 insertions, 0 deletions
diff --git a/tools/install.sh b/tools/install.sh
new file mode 100755
index 0000000..71a7aa7
--- /dev/null
+++ b/tools/install.sh
@@ -0,0 +1,68 @@
+#!/bin/sh
+set -eu
+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
+
+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")"
+
+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.$toplevel")"
+	nix copy --no-check-sigs --to "$root" "$result" 
+else
+	result="$(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