NixOS Configurations

This folder contains configuration files for my NixOS systems as well as nixrc script containing some usefull functions for NixOS development.

• nixos-homeserver.nix
• nixos-intel-ideapad.nix
• nixos-samsung-np900x3c.nix

Nix-Dev helpers

Nixrc is a plain bash script carefully written to assist in NixOS development.

Deploying

Deploying is not fully automatic so you probably will have to watch inside ./nixrc to find out the details.

$ git clone https://github.com/ierton/nixrc && cd nixrc

$ git clone https://github.com/NixOS/nixpkgs

$ git clone https://github.com/NixOS/nixos

$ echo export NIX_DEV_ROOT=`pwd` >> ~/.bash_profile

$ . ./nixrc

$ nix-dev-
nix-dev-asroot           nix-dev-pfetch           nix-dev-rebuild-dryrun
nix-dev-attr-by-name     nix-dev-pfetch-by-attr   nix-dev-rebuild-switch
nix-dev-fetch            nix-dev-rebase           nix-dev-revision
nix-dev-follow           nix-dev-rebase-check     nix-dev-revision-latest
nix-dev-patch            nix-dev-rebuild          nix-dev-unpack
nix-dev-penv             nix-dev-rebuild-build    nix-dev-update

nix-dev-penv

Usage:

nix-dev-penv -A ATTR
nix-dev-penv PACKAGE

Sets up package build environment in a new shell. nix-dev-patch can be used from that shell to generate a patch showing the difference between original sources and modified ones.

nix-dev-revision-latest

Example:

$ nix-dev-revision-latest 
usage: nix-dev-revision-latest nixos|nixpkgs
revision string: 1def5ba-48a4e91

$ nix-dev-revision-latest  nixpkgs
48a4e91

Shows latest stable commit, i.e. commit wich has a Hydra build associated.

nix-dev-update

Does many things:

• Updates nixos and nixpkgs from the origin/master
• Determines right commits in both repos to base upon
• Rebases 'local' branches in both repos upon new bases, saving current 'local' as 'local-$oldbase'