96d36b0c2e
This replaces the naive K=V unit parser with a proper INI parser from a library and adds proper support for override files. Also adds a bunch of comments about parsing, I hope this makes it easier to understand and maintain in the future. There are multiple reasons to do so, the first one is just general correctness with is nice imo. But to get to more serious reasons (I didn't put in all that effort for nothing) is that this is the first step torwards more clever restart/reload handling. By using a library like Data::Compare a future PR could replace the current way of fingerprinting units (which is to compare store paths) by comparing the hashes. This is more precise because units won't get restarted because the order of the options change, comments are added, some dependency of writeText changes, .... Also this allows us to add a feature like `X-Reload-Triggers` so the unit can either be reloaded when these change or restarted when everything else changes, giving module authors the ability to have their services reloaded without having to fear that updates are not applied because the service doesn't get restarted. Another reason why this feature is nice is that now that the unit files are parsed correctly (and values are just extracted from one section), potential future rewrites can just rely on some INI library without having to implement their own weird parser that is compatible with this script. This also comes with a new subroutine to handle systemd booleans because I thought the current way of handling it was just ugly. This also allows overriding values this script reads in an override file. Apart from making this script more compatible with the world around it, this also fixes two issues I saw bugging exactly 0 (zero) people. First is that this script now supports multiple override files, also ones that are not called override.conf and the second one is that `1` and `on` are treated as bools by systemd but were previously not parsed as such by switch-to-configuration. |
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| lib | ||
| maintainers | ||
| nixos | ||
| pkgs | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .version | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| default.nix | ||
| flake.nix | ||
| README.md | ||
Nixpkgs is a collection of over 80,000 software packages that can be installed with the Nix package manager. It also implements NixOS, a purely-functional Linux distribution.
Manuals
- NixOS Manual - how to install, configure, and maintain a purely-functional Linux distribution
- Nixpkgs Manual - contributing to Nixpkgs and using programming-language-specific Nix expressions
- Nix Package Manager Manual - how to write Nix expressions (programs), and how to use Nix command line tools
Community
- Discourse Forum
- Matrix Chat
- NixOS Weekly
- Community-maintained wiki
- Community-maintained list of ways to get in touch (Discord, Telegram, IRC, etc.)
Other Project Repositories
The sources of all official Nix-related projects are in the NixOS organization on GitHub. Here are some of the main ones:
- Nix - the purely functional package manager
- NixOps - the tool to remotely deploy NixOS machines
- nixos-hardware - NixOS profiles to optimize settings for different hardware
- Nix RFCs - the formal process for making substantial changes to the community
- NixOS homepage - the NixOS.org website
- hydra - our continuous integration system
- NixOS Artwork - NixOS artwork
Continuous Integration and Distribution
Nixpkgs and NixOS are built and tested by our continuous integration system, Hydra.
- Continuous package builds for unstable/master
- Continuous package builds for the NixOS 21.11 release
- Tests for unstable/master
- Tests for the NixOS 21.11 release
Artifacts successfully built with Hydra are published to cache at https://cache.nixos.org/. When successful build and test criteria are met, the Nixpkgs expressions are distributed via Nix channels.
Contributing
Nixpkgs is among the most active projects on GitHub. While thousands of open issues and pull requests might seem a lot at first, it helps consider it in the context of the scope of the project. Nixpkgs describes how to build tens of thousands of pieces of software and implements a Linux distribution. The GitHub Insights page gives a sense of the project activity.
Community contributions are always welcome through GitHub Issues and Pull Requests. When pull requests are made, our tooling automation bot, OfBorg will perform various checks to help ensure expression quality.
The Nixpkgs maintainers are people who have assigned themselves to maintain specific individual packages. We encourage people who care about a package to assign themselves as a maintainer. When a pull request is made against a package, OfBorg will notify the appropriate maintainer(s). The Nixpkgs committers are people who have been given permission to merge.
Most contributions are based on and merged into these branches:
masteris the main branch where all small contributions gostagingis branched from master, changes that have a big impact on Hydra builds go to this branchstaging-nextis branched from staging and only fixes to stabilize and security fixes with a big impact on Hydra builds should be contributed to this branch. This branch is merged into master when deemed of sufficiently high quality
For more information about contributing to the project, please visit the contributing page.
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License
Nixpkgs is licensed under the MIT License.
Note: MIT license does not apply to the packages built by Nixpkgs, merely to the files in this repository (the Nix expressions, build scripts, NixOS modules, etc.). It also might not apply to patches included in Nixpkgs, which may be derivative works of the packages to which they apply. The aforementioned artifacts are all covered by the licenses of the respective packages.