diff options
Diffstat (limited to 'nixos/modules/installer/cd-dvd/channel.nix')
| -rw-r--r-- | nixos/modules/installer/cd-dvd/channel.nix | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/nixos/modules/installer/cd-dvd/channel.nix b/nixos/modules/installer/cd-dvd/channel.nix index ab5e7c0645f3..92164d65e533 100644 --- a/nixos/modules/installer/cd-dvd/channel.nix +++ b/nixos/modules/installer/cd-dvd/channel.nix @@ -21,7 +21,9 @@ let if [ ! -e $out/nixos/nixpkgs ]; then ln -s . $out/nixos/nixpkgs fi - echo -n ${config.system.nixos.revision} > $out/nixos/.git-revision + ${optionalString (config.system.nixos.revision != null) '' + echo -n ${config.system.nixos.revision} > $out/nixos/.git-revision + ''} echo -n ${config.system.nixos.versionSuffix} > $out/nixos/.version-suffix echo ${config.system.nixos.versionSuffix} | sed -e s/pre// > $out/nixos/svn-revision ''; |