From 24b8e750b5aa3b049a9b570fc60a3cef5acf3418 Mon Sep 17 00:00:00 2001
From: clerie <git@clerie.de>
Date: Fri, 20 Oct 2023 23:45:43 +0200
Subject: [PATCH] pkgs/nixfiles: move nixfiles-auto-install to pkg

---
 flake.nix                               |  1 +
 hosts/_iso/configuration.nix            | 70 +------------------------
 pkgs/nixfiles/nixfiles-auto-install.nix |  9 ++++
 pkgs/nixfiles/nixfiles-auto-install.sh  | 65 +++++++++++++++++++++++
 pkgs/overlay.nix                        |  1 +
 5 files changed, 78 insertions(+), 68 deletions(-)
 create mode 100644 pkgs/nixfiles/nixfiles-auto-install.nix
 create mode 100644 pkgs/nixfiles/nixfiles-auto-install.sh

diff --git a/flake.nix b/flake.nix
index da93c48..91817dc 100644
--- a/flake.nix
+++ b/flake.nix
@@ -102,6 +102,7 @@
         flask-excel
         iot-data
         nixfiles-add-secret
+        nixfiles-auto-install
         nixfiles-generate-backup-secrets
         nixfiles-generate-config
         nixfiles-updated-inputs
diff --git a/hosts/_iso/configuration.nix b/hosts/_iso/configuration.nix
index 97cab1e..88ccf9c 100644
--- a/hosts/_iso/configuration.nix
+++ b/hosts/_iso/configuration.nix
@@ -1,72 +1,6 @@
 { pkgs, lib, modulesPath, ... }:
 
-let
-  nixfiles-auto-install = pkgs.writeScriptBin "nixfiles-auto-install" ''
-    #!${pkgs.bash}/bin/bash
-    set -euo pipefail
-
-    hostname=host''${RANDOM}
-
-    echo "[I] Deploying with hostname ''${hostname}"
-
-    device=""
-    for dev in "/dev/vda" "/dev/sda"; do
-      if [[ -b $dev ]]; then
-        device=$dev
-        break
-      fi
-    done
-
-    while [[ $# -gt 0 ]]; do
-      case $1 in
-        --hostname)
-          hostname=$2
-          shift
-          shift
-          ;;
-        *)
-          echo "unknown option: $1"
-          exit 1
-          ;;
-      esac
-    done
-
-    echo "[I] Formatting disk"
-
-    if [[ -z $device ]]; then
-      echo "[E] No device to install to"
-      exit 1
-    fi
-
-    echo "[I] Using ''${device}"
-
-    parted --script $device mklabel gpt
-    parted --script $device disk_set pmbr_boot on
-
-    parted --script $device mkpart boot 0% 512M
-    parted --script $device set 1 bios_grub on
-
-    parted --script $device mkpart root 512M 100%
-
-    echo "[I] Creating file system"
-
-    mkfs.ext4 -F ''${device}2
-
-    echo "[I] Mount file system"
-
-    mount ''${device}2 /mnt
-
-    echo "[I] Generate NixOS configuration"
-
-    nixfiles-generate-config --root /mnt --hostname ''${hostname}
-
-    sed -i "s~# boot\.loader\.grub\.device = \"/dev/sda\";~boot\.loader\.grub\.device = \"''${device}\";~g" /mnt/etc/nixos/hosts/''${hostname}/configuration.nix
-
-    echo "[I] Install NixOS"
-
-    nixos-install --flake /mnt/etc/nixos#''${hostname} --root /mnt --no-root-password
-  '';
-in {
+{
   imports = [
     (modulesPath + "/installer/cd-dvd/installation-cd-base.nix")
   ];
@@ -74,7 +8,7 @@ in {
   networking.hostName = "isowo";
   isoImage.isoBaseName = "nixos-isowo";
 
-  environment.systemPackages = [
+  environment.systemPackages = with pkgs; [
     nixfiles-auto-install
   ];
 }
diff --git a/pkgs/nixfiles/nixfiles-auto-install.nix b/pkgs/nixfiles/nixfiles-auto-install.nix
new file mode 100644
index 0000000..0758aee
--- /dev/null
+++ b/pkgs/nixfiles/nixfiles-auto-install.nix
@@ -0,0 +1,9 @@
+{ pkgs, ... }:
+
+pkgs.writeShellApplication {
+  name = "nixfiles-auto-install";
+  text = builtins.readFile ./nixfiles-auto-install.sh;
+  runtimeInputs = with pkgs; [
+    nixfiles-generate-config
+  ];
+}
diff --git a/pkgs/nixfiles/nixfiles-auto-install.sh b/pkgs/nixfiles/nixfiles-auto-install.sh
new file mode 100644
index 0000000..040201d
--- /dev/null
+++ b/pkgs/nixfiles/nixfiles-auto-install.sh
@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+hostname=host${RANDOM}
+
+echo "[I] Deploying with hostname ${hostname}"
+
+device=""
+for dev in "/dev/vda" "/dev/sda"; do
+  if [[ -b $dev ]]; then
+    device=$dev
+    break
+  fi
+done
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+  --hostname)
+    hostname=$2
+    shift
+    shift
+    ;;
+  *)
+    echo "unknown option: $1"
+    exit 1
+    ;;
+  esac
+done
+
+echo "[I] Formatting disk"
+
+if [[ -z $device ]]; then
+  echo "[E] No device to install to"
+  exit 1
+fi
+
+echo "[I] Using ${device}"
+
+parted --script $device mklabel gpt
+parted --script $device disk_set pmbr_boot on
+
+parted --script $device mkpart boot 0% 512M
+parted --script $device set 1 bios_grub on
+
+parted --script $device mkpart root 512M 100%
+
+echo "[I] Creating file system"
+
+mkfs.ext4 -F ${device}2
+
+echo "[I] Mount file system"
+
+mount ${device}2 /mnt
+
+echo "[I] Generate NixOS configuration"
+
+nixfiles-generate-config --root /mnt --hostname "${hostname}"
+
+sed -i "s~# boot\.loader\.grub\.device = \"/dev/sda\";~boot\.loader\.grub\.device = \"${device}\";~g" "/mnt/etc/nixos/hosts/${hostname}/configuration.nix"
+
+echo "[I] Install NixOS"
+
+nixos-install --flake "/mnt/etc/nixos#${hostname}" --root /mnt --no-root-password
+
diff --git a/pkgs/overlay.nix b/pkgs/overlay.nix
index c3327ae..44e57ef 100644
--- a/pkgs/overlay.nix
+++ b/pkgs/overlay.nix
@@ -3,6 +3,7 @@ self: super: {
   flask-excel = self.python3.pkgs.callPackage ./flask-excel {};
   iot-data = self.python3.pkgs.callPackage ./iot-data {};
   nixfiles-add-secret = self.callPackage ./nixfiles/nixfiles-add-secret.nix {};
+  nixfiles-auto-install = self.callPackage ./nixfiles/nixfiles-auto-install.nix {};
   nixfiles-generate-backup-secrets = self.callPackage ./nixfiles/nixfiles-generate-backup-secrets.nix {};
   nixfiles-generate-config = self.callPackage ./nixfiles/nixfiles-generate-config.nix {};
   nixfiles-updated-inputs = self.callPackage ./nixfiles/nixfiles-updated-inputs.nix {};