nix-reuse/README.md
Tom Hubrecht 2f45f2e7e6
feat(nix-reuse): Add generatedPaths option
This allows to declared machine-generated paths, and apply the CC0-1.0
license to them
2024-12-12 10:54:12 +01:00

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<!--
SPDX-FileCopyrightText: 2024 Tom Hubrecht <tom.hubrecht@dgnum.eu>
SPDX-License-Identifier: EUPL-1.2
-->
# Integration of [reuse](https://reuse.software) with [Nix](https://lix.systems/)
## Features
- Provides a shell hook to generate the `REUSE.toml` file
- Provides a hook to be used with [git-hooks.nix](https://github.com/cachix/git-hooks.nix)
## Getting started
### `REUSE.toml` generation
#### npins
1. Add `nix-reuse` to your sources:
```bash
npins add git https://git.dgnum.eu/DGNum/nix-reuse
```
2. Integrate workflows to `shell.nix`:
```nix
let
sources = import ./npins;
reuse = (import sources.nix-reuse { }).install {
defaultLicense = "EUPL-1.2";
defaultCopyright = "Jane Doe <jane.doe@example.com>";
generatedPaths = [
".envrc"
".gitignore"
"REUSE.toml"
];
annotations = [
{ path = "default.nix"; }
{
path = "npins/*";
license = "EUPL-1.2";
copyright = "The [npins](https://github.com/andir/npins) contributors";
}
];
};
in
with (import sources.nixpkgs { });
mkShell {
packages = [ ... ];
inherit (reuse) shellHook;
}
```
#### Options
- `defaultLicense`: the default license SPDX identifier used accross the project.
- `defaultCopyright`: the default copyright text used accross the project.
- `downloadLicenses`: whether to download automatically the missing licenses detectd in the project.
- `generatedPaths`: a list of computer-generated files, they will be declared with a copyright of `NONE` and the `CC0-1.0` license.
- `annotations`: the list of [annotations](https://reuse.software/spec-3.3/#reusetoml) for this project.
### reuse git-hook
#### npins
1. Add `nix-reuse` to your sources:
```bash
npins add git https://git.dgnum.eu/DGNum/nix-reuse
```
2. Integrate reuse to git hooks:
```nix
let
sources = import ./npins;
git-checks = (import sources."git-hooks.nix").run {
src = ./.;
hooks = {
reuse = (import sources.nix-reuse { }).hook {
enable = true;
};
};
};
in
with (import sources.nixpkgs { });
mkShell {
packages = [ ... ];
inherit (git-checks) shellHook;
}
```