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<!--
SPDX-FileCopyrightText: 2023 Free Software Foundation Europe e.V.
SPDX-FileCopyrightText: 2024 Aminda Suomalainen <suomalainen@aminda.eu>

SPDX-License-Identifier: CC-BY-SA-4.0
-->

# REUSE notes

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<em lang="fi">Automaattinen sisällysluettelo</em> / <em lang="en">Automatically generated Table of Contents</em>

- [Adding headers](#adding-headers)
  - [Styles](#styles)
- [Generic commands](#generic-commands)
- [Development version](#development-version)
- [License identifiers I commonly use](#license-identifiers-i-commonly-use)

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> reuse is a tool for compliance with the REUSE recommendations.

says [their GitHub description](https://github.com/fsfe/reuse-tool) and in
practice this means having a license header in all files or alternatively a
`file.license` file. The tool can generate these, but I never remember the
commands.

For more detailed explanation, consult
[reuse.software/tutorial](https://reuse.software/tutorial/)

---

## Adding headers

Copy-paste and add file name(s) to the end

```bash
# Autodetect how to add comment?
reuse annotate --copyright="Aminda Suomalainen <{{ site.email }}>" --license="CC0-1.0"
# Create a file.license
reuse annotate --copyright="Aminda Suomalainen <{{ site.email }}>" --license="CC0-1.0" --force-dot-license
# The usual # marks a comment
reuse annotate --copyright="Aminda Suomalainen <{{ site.email }}>" --license="CC0-1.0" --style python
```

Note!

- `--year 2023` can be specified if the date isn't this year.
- `annotate` replaces existing headeer if any, to add before it instead, use
  `--no-replace`

### Styles

- `c` means `//` marks a comment
- `python` means `#` marks a comment
- `html` and `css` explain themselves
- `tex` means `%` marks a comment
- `vim` means `"` marks a comment
- etc. when `style` is empty, supported ones are displayed, but I am unsure
  whether I need more and trying what `reuse` says works too.

## Generic commands

- `reuse download --all` - downloads all licenses found to `LICENSES/`
- `reuse lint` - verifies compliancy
- `reuse supported-licenses | less` - lists supported licenses identifiers
- `reuse convert-dep5` to fix deprecation warning about
  `.reuse/dep5`/`reuse.toml`

## Development version

- `pipx install "git+https://github.com/fsfe/reuse-tool.git"`

## License identifiers I commonly use

- `CC0-1.0`
- `CC-BY-4.0`
- `CC-BY-ND-4.0`
- `CC-BY-SA-4.0`
- `BSD-3-Clause`
- `EUPL-1.2`

See also [SPDX License List](https://spdx.org/licenses/)

_Viewing source of this page reveals this one to be CC-BY-SA-4.0._