add install-host.sh

install-host.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+set -e
+
+REPO=nix-configs
+if [ -d $REPO ]; then
+	cd $REPO
+	git pull --ff-only
+else
+	git clone https://github.com/c3d2/$REPO.git $REPO
+fi
+
+for OLDCFG in /etc/nixos/{hardware-,}configuration.nix; do
+	if [ -f $OLDCFG ]; then
+		sudo mv ${OLDCFG}{,.old}
+	fi
+done
+
+sudo ln -s $HOME/$REPO/hosts/`hostname -s`/configuration.nix /etc/nixos/configuration.nix
+ls -l /etc/nixos/configuration.nix
+