releng: move officialRelease to version.json

This was causing a few bits of suffering downstream, in particular, in
the NixOS module, which, after this change, can have the
`officialRelease` stuff in *it* completely deleted since we now have
correct defaulting in package.nix for it.

It also eliminates some automated editing of Nix files, which is
certainly always welcome to eliminate.

Fixes: https://git.lix.systems/lix-project/lix/issues/406
Change-Id: Id12f3018cff4633e379dbfcbe26b7bc84922bdaf

1 files changed, 3 insertions, 2 deletions

diff --git a/flake.nix b/flake.nix
index 440320afa..d2173cf47 100644
--- a/flake.nix
+++ b/flake.nix
@@ -59,7 +59,8 @@
         (Run `touch .nocontribmsg` to hide this message.)
       '';
 
-      officialRelease = false;
+      versionJson = builtins.fromJSON (builtins.readFile ./version.json);
+      officialRelease = versionJson.official_release;
 
       # Set to true to build the release notes for the next release.
       buildUnreleasedNotes = true;
@@ -419,7 +420,7 @@
             pkgs: stdenv:
             let
               nix = pkgs.callPackage ./package.nix {
-                inherit stdenv officialRelease versionSuffix;
+                inherit stdenv versionSuffix;
                 busybox-sandbox-shell = pkgs.busybox-sandbox-shell or pkgs.default-busybox-sandbox;
                 internalApiDocs = false;
               };