https://github.com/jorsn/flakegen

Flake inputs with the full power of Nixlang
https://github.com/jorsn/flakegen

Last synced: 1 day ago
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Flake inputs with the full power of Nixlang

• Host: GitHub
• URL: https://github.com/jorsn/flakegen
• Owner: jorsn
• License: mit
• Created: 2024-01-12T16:55:25.000Z (10 months ago)
• Default Branch: main
• Last Pushed: 2024-02-05T08:09:04.000Z (9 months ago)
• Last Synced: 2024-02-05T09:27:40.423Z (9 months ago)
• Language: Nix
• Size: 7.81 KB
• Stars: 3
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# flakegen

In Nix flakes, inputs must be written as pure data, without functions or thunks

(see issues [NixOS/nix#3966](https://github.com/NixOS/nix/issues/3966)

and [NixOS/nix#4945](https://github.com/NixOS/nix/issues/4945)).

To generate inputs with the full power of the Nix language,

one can create a template file, e.g. `flake.in.nix` and generate the

`flake.nix` by evaluating and pretty-printing the `inputs` attribute.

This flake is a convenience wrapper around that.

## Usage

To start using this, run

```

nix flake init -t github:jorsn/flakegen

```

This will create the files `flake.nix` and `flake.in.nix`.

It will not overwrite existing files.

After editing `flake.in.nix` as you like, run

```

nix run .#genflake flake.nix

```

to update the `flake.nix`.

To preview the new `flake.nix` without replacing it, run the following:

```

nix run .#genflake

```

## Repair broken `flake.nix`

You can repair a broken `flake.nix` by

deleting `flake.nix` and running

```

nix flake init -t github:jorsn/flakegen

nix run .#genflake flake.nix

```

as long as `flake.in.nix` works.