Merge pull request #640 from MatthewCroughan/mc/extraPostVM-nixosConfig

make-disk-image: make extraPostVM configurable from module.nix
nix-community · May 19, 2024 · 601be84 · 601be84
2 parents 5f6dbcc + 4444751
commit 601be84
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diff --git a/lib/make-disk-image.nix b/lib/make-disk-image.nix
@@ -3,7 +3,7 @@
 , pkgs ? nixosConfig.pkgs
 , lib ? pkgs.lib
 , name ? "${nixosConfig.config.networking.hostName}-disko-images"
-, extraPostVM ? ""
+, extraPostVM ? nixosConfig.config.disko.extraPostVM
 , checked ? false
 }:
 let

diff --git a/module.nix b/module.nix
@@ -17,6 +17,17 @@ in
       '';
       default = [ ];
     };
+    extraPostVM = lib.mkOption {
+      type = lib.types.str;
+      description = ''
+        extra shell code to execute once the disk image(s) have been succesfully created and moved to $out
+      '';
+      default = "";
+      example = pkgs.literalExpression ''
+        ''${pkgs.zstd}/bin/zstd --compress $out/*raw
+        rm $out/*raw
+      '';
+    };
     memSize = lib.mkOption {
       type = lib.types.int;
       description = ''