libkookie: adding root building mechanism

2 files changed, 49 insertions, 0 deletions

diff --git a/infra/libkookie/build b/infra/libkookie/build
index e69de29bb2d1..e79ae239967a 100644..100755
--- a/infra/libkookie/build
+++ b/infra/libkookie/build
@@ -0,0 +1,43 @@
+#!/bin/sh
+
+set -eo pipefail
+
+HOST=$(hostname)
+DIR=$(realpath "$(dirname "$0")")
+OUT=$(mktemp -du)
+ROOT="$DIR/roots/$HOST.nix"
+
+echo Active tree: "$ROOT"
+
+## Build the libkookie tree
+function build {  
+    NIXPKGS_ALLOW_UNFREE=1 \
+            nix build -f '<nixpkgs/nixos>' system \
+            -I nixos-config="$ROOT" \
+            -I "nixpkgs=$DIR" \
+            -I "nixpkgs-overlays=$DIR/overlays" \
+            -I "home-manager=$DIR/home-manager" \
+            --out-link "$OUT" "$@"
+}
+
+## Build and output build path for debugging
+function debug {
+    build
+    echo "Build path: $OUT"
+    exit 0
+}
+
+## Build and switch to the new configuration (requires root)
+function switch {
+    build
+    nix-env -p /nix/var/nix/profiles/system --set "$OUT"
+    "$OUT"/bin/switch-to-configuration switch
+}
+
+case "$1" in
+    -s* | --switch*) shift; switch ;;
+    -d* | --debug*)  shift; debug ;;
+    *)               build ;;
+esac
+
+rm -rf "$OUT"*
diff --git a/infra/libkookie/default.nix b/infra/libkookie/default.nix
new file mode 100644
index 000000000000..bfe795bf6f2b
--- /dev/null
+++ b/infra/libkookie/default.nix
@@ -0,0 +1,6 @@
+{ overlays ? [], ... } @ args:
+
+import ./nixpkgs (args // {
+  overlays = [ (import ./overlays) ] ++ overlays;
+})
+