Make use of Nix flake registry instead of channel
ambroisie opened this issue · comments
I would like nix-index to make use of a pinned version of nixpkgs that I set in the Nix registry, instead of Nix channels which I do not use and do not update.
In case it's helpful to you or others, my current workaround is to set nixpkgs on my NIX_PATH to point to a nixpkgs.nix file included in my Nix configs flake.
On nixos it seems to be as easy as setting it to the flake input, no need to construct the URL yourself from the flake.lock or have a local path.
nix.nixPath = [ "nixpkgs=${nixpkgs}" ];
Not sure if this works on darwin although I don't know why it wouldn't.
@LunNova, great point! I had forgotten that I was doing things the way I was so that the nixpkgs in NIX_PATH would support workflows that don't support flakes.
If flakes is enabled, it automatically should use nix profile install instead of nix-env -iA. And nix run nixpkgs#<pkg> ... instead of nix-shell ---run.
I can confirm that using nix.nixPath = [ "nixpkgs=${nixpkgs}" ]; works on darwin
@srid @dfrankland I have flakes enabled and set nix.nixPath = [ "nixpkgs=${nixpkgs}" ], but it is still using the channel. Any suggestions for what I could do? :)
The program 'tldr' is currently not installed. It is provided by
several packages. You can install it by typing one of the following:
nix-env -iA nixpkgs.tldr-hs.out
nix-env -iA nixpkgs.tldr.out
nix-env -iA nixpkgs.tealdeer.out
Or run it once with:
nix-shell -p tldr-hs.out --run ...
nix-shell -p tldr.out --run ...
nix-shell -p tealdeer.out --run ...
@anajuliabit I think you are experiencing #210, currently nix-index's command-not-found only suggests the flake commands if your user profile is with flakes, which I think only happens if you've run one of the nix profile commands once
@figsoda, you are correct
actually, I hid the comment because I reached the same conclusion after writing it. But I will keep it visible for anyone who may find it useful. Thank you!
I recently stopped using home-manager and nix-index broke. I’m also using flakes and setting NIX_PATH accordingly. I tried installing something (nix-index, in fact) with nix profile, but still get this error:
0 2024-01-14 12:05:05 $ nix-index
+ querying available packages
error: querying available packages failed
caused by: nix-env failed with error: nix-env failed with exit status: 1:
error: file 'nixpkgs' was not found in the Nix search path (add it using $NIX_PATH or -I)
at «none»:0: (source not available)
2 2024-01-14 12:05:12 $ printenv NIX_PATH
nixpkgs=/etc/nix/inputs/nixpkgs
0 2024-01-14 12:05:17 $ ls /etc/nix/inputs/nixpkgs/
doc maintainers pkgs COPYING flake.nix
lib nixos CONTRIBUTING.md default.nix README.md
0 2024-01-14 12:05:23 $ nix profile list
Index: 0
Flake attribute: legacyPackages.x86_64-linux.nix-index
Original flake URL: flake:nixpkgs
Locked flake URL: path:/nix/store/7ix7lj4h8q5jl740bkwvpi611safrq0v-source?lastModified=1702645756&narHash=sha256-qKI6OR3TYJYQB3Q8mAZ%2BDG4o/BR9ptcv9UnRV2hzljc%3D&rev=40c3c94c241286dd2243ea34d3aef8a488f9e4d0
Store paths: /nix/store/3mashfgk5g2xnsqyl4ljwm44n768dcx7-nix-index-0.1.7
Index: 1
Flake attribute: legacyPackages.x86_64-linux.nix-index
Original flake URL: flake:nixpkgs
Locked flake URL: path:/nix/store/7ix7lj4h8q5jl740bkwvpi611safrq0v-source?lastModified=1702645756&narHash=sha256-qKI6OR3TYJYQB3Q8mAZ%2BDG4o/BR9ptcv9UnRV2hzljc%3D&rev=40c3c94c241286dd2243ea34d3aef8a488f9e4d0
Store paths: /nix/store/3mashfgk5g2xnsqyl4ljwm44n768dcx7-nix-index-0.1.7
What am I missing here?
@srid @dfrankland I have flakes enabled and set
nix.nixPath = [ "nixpkgs=${nixpkgs}" ], but it is still using the channel.
@anajuliabit You can try the workaround mentioned in the Zulip thread linked in #191 (comment)
While nix-index detects the use of flakes if ~/.nix-profile/manifest.nix exists, it fails if nix is set with use-xdg-base-directories = true, which doesn't use ~/.nix-profile, but instead uses $XDG_STATE_HOME/nix/profile (or ~/.local/state/nix/profile if $XDG_STATE_HOME isn't set).