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55 lines
1.6 KiB
Markdown
55 lines
1.6 KiB
Markdown
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# Flake Modules Core
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_Core of a distributed framework for writing Nix Flakes._
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`flake-modules-core` provides the options that represent standard flake attributes and establishes a way of working with `system`. Opinionated features are provided by an ecosystem of modules that you can import.
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# Why Modules?
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Flakes are configuration. The module system lets you refactor configuration
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into modules that can be shared.
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It reduces the proliferation of custom Nix glue code, similar to what the
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module system has done for NixOS configurations.
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Unlike NixOS, but following Flakes' spirit, `flake-modules-core` is not a
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monorepo with the implied goal of absorbing all of open source, but rather
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a single module that other repositories can build upon, while ensuring a
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baseline level of compatibility: which core attribute make up a flake and
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how these are represented as module options.
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# Getting Started
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If your project does not have a flake yet:
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```console
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nix flake init -t github:hercules-ci/flake-modules-core
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```
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Otherwise, add the input,
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```
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flake-modules-core.url = "github:hercules-ci/flake-modules-core";
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flake-modules-core.inputs.nixpkgs.follows = "nixpkgs";
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```
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then slide `evalFlakeModule` between your outputs function head and body,
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```
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outputs = { self, flake-modules-core, ... }:
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(flake-modules-core.lib.evalFlakeModule
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{ inherit self; }
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{
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flake = {
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# Put your original flake attributes here.
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}
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}
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).config.flake;
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```
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Now you can add the remaining module attributes like in the [the template](./template/flake.nix).
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# Example
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See [the template](./template/flake.nix).
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