Nixos-rebuild fails as curl can't fetch requested package due to redirect

Help
1

I’m newbie here and started to use nixos today. As I tried to populate my profile with favourite programs I spotted that nixos-rebuild uses curl which won’t follow redirect without explicit --location option.

How should I pass this option to nixos-rebuild curl? I already tried .curlrc both in home dir and root dir - with no effect (however command line curl works like a charm)

Other option would be to replace curl with wget for fetching OR temporarily overriding url in .drv file, please, advise!

2

Are you saying that you added a package from nixpkgs, and that somehow nixos-rebuild fails because a redirect cannot be followed that is in the package you added?

3

Exactly. This package points to url which is not accessible without redirect, and now I’m struggling how to bypass this limitation. command line curl takes -L option to follow redirect. As far as I’ve been guided in Discord nixpkgs uses libcurl and according to source file it should take NIX_CURL_FLAGS as impure environment variable. nixpkgs/pkgs/build-support/fetchurl/default.nix at b6625b11a86adfb3f620400c4122d8bb48aeb628 · NixOS/nixpkgs · GitHub

however I don’t know how to set it. I already tried to do

systemd.services.nix-daemon.environment.NIX_CURL_FLAGS = “-L”;

with no effect

systemctl cat nix-daemon.service | grep NIX_ shows
Environment=“NIX_CURL_FLAGS=-L”

4

If you happen to control the package, it is possible to use redirects in packages nixpkgs/pkgs/by-name/ar/arc-browser/package.nix at 2cf2f3a306f5ea1f0e184b4317c4d50679ec49b3 · NixOS/nixpkgs · GitHub

it is also possible to override or use an overlay to override attributes about a package, perhaps to set the URL

Also possibly maybe small chance this is relevant? can't find curl-config on NixOS - Stack Overflow