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Gabriella439 / nixos-in-production

Source files for the book "NixOS in Production"
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Question about github paths in shell #13

Closed paul-jewell closed 1 year ago

paul-jewell commented 1 year ago

Good afternoon Gabriella, First of all thanks for the book - I have bought a copy, and I am thoroughly enjoying working through it. I have one question which I have so far been unable to resolve: at the top of page 34, there is a nix repl command: $ nix repl github:NixOS/nixpkgs/22.05 When I issue this command, I am getting an error, saying it can't find $HOME/github: ... - it seems my shell is seeing the github path as a relative file location. Changing "github:" to "https://github.com/" gives a 404 error. How have you configured your shell to parse github: links? I do have a git config rule: url.https://github.com/.insteadof=github:, but I suspect there needs to be some shell configuration as well? I would love to either know how you have configured the shell to make this work, or alternatively how I should execute the command without the link parsing. Thanks! Paul (I am running the code on a NixOS system with fish as the shell, if that has any bearing)

paul-jewell commented 1 year ago

Here is the actual error message: warning: future versions of Nix will require using--fileto load a file error: getting status of '/home/paul/github:NixOS/nixpkgs/22.05': No such file or directory

Gabriella439 commented 1 year ago

Oh, it's because you need to enable the repl-flake experimental feature. See: https://github.com/Gabriella439/nixos-in-production/blob/16799bac90dcd74936bfdd1f6be25dda115464b7/manuscript/Setup.md#installing-nix

paul-jewell commented 1 year ago

Thankyou! I had already enabled the other experimental features, but so far on my NixOS journey, I haven't made much use of the repl (one of the reasons I bought your book - to learn more). Have a great weekend!

Gabriella439 commented 1 year ago

You're welcome!