nixos-wiki-infra/checks/linkcheck/README.md

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## What
wiki.nixos.org dead links checker gha powered by
[lychee](https://github.com/lycheeverse/lychee)
Runs twice a week, can be adjusted in the github action cron job. Need to
manually edit links in wiki, nothing automated.
Initial run gave ~100 results and were fixed manually, see the entries before 16
Sep
[here](https://wiki.nixos.org/w/index.php?title=Special:Contributions/Phanirithvij&target=Phanirithvij&offset=&limit=100).
## Why
Dead links if detected early have a chance to prevent linkrot.
- Why not use a broken-link-checker github action?
- wrote this so that it is not tied in to gha (works locally)
- gha will only call the script and upload artifact
## Instructions
```shell
cd ./checks/linkcheck
direnv allow # or # nix develop ..#linkcheck
./lychee.sh
```
It can be run from anywhere so `/path/to/checks/linkcheck/lychee.sh` works but
the report will be generated at `/path/to/checks/linkcheck`.
As usual, `nix fmt` works inside linkcheck dir.
## TODO/Roadmap
- [ ] archive all links found in lychee scan (see lychee --dump)
- Since these links are prone to deletion it is our duty to archive them.
- There was a cli tool for this, forgot what it is, rediscover it