John EricsonandGitHub
3cf43547f4
Another attempt after my sloppy https://github.com/NixOS/nixpkgs/commit/48ccdf322d9e7a68d0caf5833511ee3e53ec7d3a. @Infinisil, thanks again, reverted in https://github.com/NixOS/nixpkgs/commit/4794aa5de233b5bf2d1c3245946379699d023467 and explained my mistakes in https://github.com/NixOS/nixpkgs/commit/48ccdf322d9e7a68d0caf5833511ee3e53ec7d3a#commitcomment-29678643. I start with their work and provide this proof of this commit's correctness: ```nix (lib.fixedPoints.extends (lib.flip g) f) # now ((f: rattrs: self: let super = rattrs self; in super // f self super) (lib.flip g) f) # inline extends (self: let super = f self; in super // (lib.flip g) self super) # beta reduce (self: let super = f self; in super // g super self) # beta reduce (self_: let super = f self_; in super // g super self_) # alpha rename (self_: let super = f self_; in super // g super self_) # original, same ``` Eventually we might harmonize `overrideScope`'s `g` parameter with the general pattern, but I leave that breaking change as a separate step. Best not to refactor and break at once, and at least the abstractions make the oddity clearer.
Nixpkgs is a collection of packages for the Nix package manager. It is periodically built and tested by the Hydra build daemon as so-called channels. To get channel information via git, add nixpkgs-channels as a remote:
% git remote add channels https://github.com/NixOS/nixpkgs-channels.git
For stability and maximum binary package support, it is recommended to maintain
custom changes on top of one of the channels, e.g. nixos-18.03 for the latest
release and nixos-unstable for the latest successful build of master:
% git remote update channels
% git rebase channels/nixos-18.03
For pull-requests, please rebase onto nixpkgs master.
NixOS Linux distribution source code is located inside
nixos/ folder.
- NixOS installation instructions
- Documentation (Nix Expression Language chapter)
- Manual (How to write packages for Nix)
- Manual (NixOS)
- Community maintained wiki
- Continuous package builds for unstable/master
- Continuous package builds for 18.03 release
- Tests for unstable/master
- Tests for 18.03 release
Communication: