How should I make fetchpatch available in this code? Also, prev.patches doesn’t seem to be available.
I try to apply a patch to a Grafana, but Nix returns:
error: undefined variable 'fetchpatch'.
When I try to add fetchpatch to the input attrSet I get:
error: attribute 'fetchpatch' missing
The code below is in an imports list of my machine.
{
pkgs,
lib,
config,
utils,
...
}:
let
grafanaPatched = pkgs.unstable.grafana.overrideAttrs (
final: prev: {
grafanaImages = fs.toSource {
root = ./.;
fileset = images;
};
patches = prev.patches ++ [
(fetchpatch {
name = "provision-organisations.patch";
url = "https://github.com/grafana/grafana/commit/e3ba7dec1fb896080e07e52f4d9de33762964d7c.patch";
sha256 = "";
})
];
postFixup = lib.strings.concatStrings [
prev.postFixup
''
# replacing some images
''
];
}
);
in
{
services.grafana = {
enable = true;
package = grafanaPatched;
};
}