[Nix-dev] Using system.autoUpgrade with a git channel

[Danylo Hlynskyi]

I've seen this in a wild

system.autoUpgrade.enable = true;
system.autoUpgrade.flags = lib.mkForce
  [ "--no-build-output"
    "-I" "nixpkgs=/etc/nixos/nixpkgs-channels"
  ];
systemd.services.nixos-upgrade.path = [ pkgs.git ];
systemd.services.nixos-upgrade.preStart = ''
  cd /etc/nixos/nixpkgs-channels
  ${pkgs.git}/bin/git pull
'';


https://github.com/garbas/dotfiles/blob/a76e12166efa57edded8c381074104fefe5c7da6/nixos/floki.nix#L27-L36

2017-07-07 9:36 GMT+03:00 John Ramsden via nix-dev <
nix-dev at lists.science.uu.nl>:

> Thanks that's helpful. In other words if I'm using a checked out git
> repository I'm no longer able to use 'system.autoUpgrade'.
>
> --
>   John Ramsden
>
> On Thu, Jul 6, 2017, at 10:56 PM, Vladimír Čunát wrote:
> > On 07/07/2017 01:46 AM, John Ramsden via nix-dev wrote:
> > > I was also wondering what exactly the 'nixos-rebuild switch' command's
> > > '--upgrade' flag does.
> >
> > It does
> > $ nix-channel --update nixos
> > Best see the source if you want details, as it's relatively simple:
> > https://github.com/NixOS/nixpkgs/blob/master/nixos/
> modules/installer/tools/nixos-rebuild.sh#L197
> >
> > --Vladimir
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