liminix

commit 696bbe6521c129855d5223c7b598607485f6a683
parent 4cbe669783ed4255d3cd945fc913df8ddf7909e6
Author: Daniel Barlow <dan@telent.net>
Date:   Tue, 27 Sep 2022 16:17:55 +0100

rename systemPackages as defaultProfile.packages

it doesn't work the same way as in nixos, so don't name it the same way

Diffstat:
M
default.nix
 | 
6
+-----
M
modules/base.nix
 | 
14
++++++++++----
M
pkgs/liminix-tools/builders/squashfs.nix
 | 
16
++++++++--------
M
tests/pppoe/configuration.nix
 | 
2
+-
M
tests/smoke/configuration.nix
 | 
2
+-

5 files changed, 21 insertions(+), 19 deletions(-)
diff --git a/default.nix b/default.nix
@@ -11,11 +11,7 @@ let
     <liminix-config>
     ./modules/s6
   ] nixpkgs.pkgs;
-  finalConfig = config // {
-    packages = config.systemPackages ++
-               (builtins.attrValues config.services);
-  };
-  squashfs = liminix.builders.squashfs finalConfig;
+  squashfs = liminix.builders.squashfs config;
   kernel = callPackage ./kernel {
     inherit (config.kernel) config;
   };
diff --git a/modules/base.nix b/modules/base.nix
@@ -1,4 +1,4 @@
-{ lib, pkgs, ...}:
+{ lib, pkgs, config, ...}:
 let
   inherit (lib) mkEnableOption mkOption types isDerivation hasAttr ;
   inherit (pkgs.pseudofile) dir symlink;
@@ -12,8 +12,12 @@ let
 
 in {
   options = {
-    systemPackages = mkOption {
-      type = types.listOf types.package;
+    # analogous to nixos systemPackages, but we don't symlink into
+    # /run/current-system, we just add the paths in /etc/profile
+    defaultProfile = {
+      packages = mkOption {
+        type = types.listOf types.package;
+      };
     };
     services = mkOption {
       type = types.attrsOf type_service;
@@ -31,6 +35,8 @@ in {
     };
   };
   config = {
+    defaultProfile.packages = with pkgs;
+      [ s6-init-bin busybox execline s6-linux-init s6-rc ];
     environment = dir {
       bin = dir {
         sh = symlink "${busybox}/bin/sh";
@@ -48,7 +54,7 @@ in {
       etc = dir {
         profile = symlink
           (pkgs.writeScript ".profile" ''
-            PATH=${lib.makeBinPath (with pkgs; [ s6-init-bin busybox execline s6-linux-init s6-rc])}
+            PATH=${lib.makeBinPath config.defaultProfile.packages}
             export PATH
           '');
         passwd = { file = "root::0:0:root:/:/bin/sh\n"; };
diff --git a/pkgs/liminix-tools/builders/squashfs.nix b/pkgs/liminix-tools/builders/squashfs.nix
@@ -8,15 +8,15 @@
 , writeText
 } : config :
 let
-  config-pseudofiles = pseudofile.write "config.etc"
-    (config.environment.contents);
+  pseudofiles =
+    pseudofile.write "config.etc" (config.environment.contents);
 
   storefs = callPackage <nixpkgs/nixos/lib/make-squashfs.nix> {
-    # add pseudofiles as packages to store so that the packages they
-    # depend on are also added
-    storeContents = [
-      config-pseudofiles
-    ] ++ config.packages ;
+    # 1) Every required package is referenced from somewhere
+    # outside /nix/store. 2) Every file outside the store is
+    # specified by config.environment. 3) Therefore, closing over
+    # the pseudofile will give us all the needed packages
+    storeContents = [ pseudofiles ];
   };
 in runCommand "frob-squashfs" {
     nativeBuildInputs = with buildPackages; [ squashfsTools qprint ];
@@ -24,6 +24,6 @@ in runCommand "frob-squashfs" {
     cp ${storefs} ./store.img
     chmod +w store.img
     mksquashfs - store.img -no-recovery -quiet -no-progress  -root-becomes store -p "/ d 0755 0 0"
-    mksquashfs - store.img -no-recovery -quiet -no-progress  -root-becomes nix  -p "/ d 0755 0 0" -pf ${config-pseudofiles}
+    mksquashfs - store.img -no-recovery -quiet -no-progress  -root-becomes nix  -p "/ d 0755 0 0" -pf ${pseudofiles}
     cp store.img $out
 ''
diff --git a/tests/pppoe/configuration.nix b/tests/pppoe/configuration.nix
@@ -68,5 +68,5 @@ in rec {
     ];
   };
 
-  systemPackages = [ pkgs.hello ] ;
+  defaultProfile.packages = [ pkgs.hello ] ;
 }
diff --git a/tests/smoke/configuration.nix b/tests/smoke/configuration.nix
@@ -63,5 +63,5 @@ in rec {
     contents = with services; [ loopback ntp defaultroute4 ];
   };
 
-  systemPackages = [ pkgs.hello ] ;
+  defaultProfile.packages = [ pkgs.hello ] ;
 }