host: add deault implementation for system.build.isoImage target (per…

README.md

@@ -170,10 +170,9 @@ nix build ./#homeConfigurations.NixOS.nixos.home.activationPackage
 
 ## Build an ISO
 
-You can make an ISO and customize it by modifying the [niximg](./hosts/niximg.nix)
-file:
+You can make an ISO out of any config:
 ```sh
-flk iso
+flk iso yourConfig # build an iso for hosts/yourConfig.nix
 ```
 
 ## Hardware Specific Profile for a Single Host

flake.nix

@@ -60,9 +60,7 @@
 
           overlay = import ./pkgs;
 
-          lib = import ./lib {
-            inherit (nixos) lib;
-          };
+          lib = import ./lib { inherit nixos; };
 
           templates.flk.path = ./.;
 

hosts/default.nix

@@ -9,14 +9,14 @@
 , ...
 }:
 let
-  inherit (lib.flk) recImport;
+  inherit (lib.flk) recImport nixosSystemExtended;
   inherit (builtins) attrValues removeAttrs;
 
   unstableModules = [ ];
   addToDisabledModules = [ ];
 
   config = hostName:
-    lib.nixosSystem {
+    nixosSystemExtended {
       inherit system;
 
       specialArgs =

lib/default.nix

@@ -1,9 +1,9 @@
-{ lib, ... }:
+{ nixos, ... }:
 let
   inherit (builtins) attrNames attrValues isAttrs readDir listToAttrs mapAttrs;
 
-  inherit (lib) fold filterAttrs hasSuffix mapAttrs' nameValuePair removeSuffix
-    recursiveUpdate genAttrs;
+  inherit (nixos.lib) fold filterAttrs hasSuffix mapAttrs' nameValuePair removeSuffix
+    recursiveUpdate genAttrs nixosSystem mkForce;
 
   # mapFilterAttrs ::
   #   (name -> value -> bool )
@@ -55,6 +55,34 @@ in
           nameValuePair ("") (null))
       (readDir dir);
 
+  nixosSystemExtended = { modules, ... } @ args:
+    nixosSystem (args // {
+      modules =
+        let
+          modpath = "nixos/modules";
+          cd = "installer/cd-dvd/installation-cd-minimal-new-kernel.nix";
+          isoConfig = (nixosSystem
+            (args // {
+              modules = modules ++ [
+                "${nixos}/${modpath}/${cd}"
+                ({ config, ... }: {
+                  isoImage.isoBaseName = "nixos-" + config.networking.hostName;
+                  # confilcts with networking.wireless which might be slightly
+                  # more useful on a stick
+                  networking.networkmanager.enable = mkForce false;
+                  # confilcts with networking.wireless
+                  networking.wireless.iwd.enable = mkForce false;
+                })
+              ];
+            })).config;
+        in
+        modules ++ [{
+          system.build = {
+            iso = isoConfig.system.build.isoImage;
+          };
+        }];
+    });
+
   nixosModules =
     let
       # binary cache

shell/default.nix

@@ -12,7 +12,7 @@ let
 
   flk = pkgs.writeShellScriptBin "flk" ''
     if [[ -z "$1" ]]; then
-      echo "Usage: $(basename "$0") [ iso | up | install {host} | {host} [switch|boot|test] | home {host} {user} [switch] ]"
+      echo "Usage: $(basename "$0") [ up | iso {host} | install {host} | {host} [switch|boot|test] | home {host} {user} [switch] ]"
     elif [[ "$1" == "up" ]]; then
       mkdir -p $DEVSHELL_ROOT/up
       hostname=$(hostname)
@@ -24,7 +24,7 @@ let
     git add -f $DEVSHELL_ROOT/up/$hostname
     git add -f $DEVSHELL_ROOT/hosts/up-$hostname.nix
     elif [[ "$1" == "iso" ]]; then
-      nix build $DEVSHELL_ROOT#nixosConfigurations.niximg.${build}.isoImage "${"\${@:2}"}"
+      nix build $DEVSHELL_ROOT#nixosConfigurations.$2.${build}.iso "${"\${@:3}"}"
     elif [[ "$1" == "install" ]]; then
       sudo nixos-install --flake "$DEVSHELL_ROOT#$2" "${"\${@:3}"}"
     elif [[ "$1" == "home" ]]; then