First steps
1st Nix/NixOS meetup Mar 2015 in Berlin
with
Nix
#nix #nixos
Rok Garbas, @garbas
https://garbas.si
NixOS
Nixpkgs
Hydra
Nix
NixOps
Lets meet the family...
berlinjs meetup Feb 2015
What is Nix?
TO INSTALL
% curl https://nixos.org/nix/install | sh
TO UNINSTALL
% rm -Rf /nix
% rm -Rf ~/.nix*Nix protects me against me.
Nix exposes the things I forget.
Nix let's me do things multiple times consistently, even on different machines.
Nix, the one language to rule them all.
Features or
"Why Nix?"
Quotes by Rob Vermas - http://nixer.ghost.io/why/
Nix protects me, against me
UPDATE CHANNELS (look at this as apt-get update)
% nix-channel --update
INSTALL "tig" application
% nix-env --list-generations
1002 2015-01-23 04:29:40
1003 2015-01-23 04:44:51
% nix-env -i tig
% nix-env --list-generations
1002 2015-01-23 04:29:40
1003 2015-01-23 04:44:51
1004 2015-01-23 04:50:11
UNDO / ROLLBACK
% nix-env --rollback <or nix-env --switch-generation 1003>
% nix-env --list-generations
1002 2015-01-23 04:29:40
1003 2015-01-23 04:44:51
berlinjs meetup Feb 2015
How can Nix do this?
HOOKS INTO BASH
% echo $PATH
/home/rok/.nix-profile/bin:/home/rok/.nix-profile/sbin:...
% tree -L 2 `realpath ~/.nix-profile`
/nix/store/xj8592ssnmcsn1kvbf87nm1acllwcqan-user-environment
├── bin
│ ├── tig -> /nix/store/j3scw814k79mj3mm6x6yj9svvcq1plx4-tig-2.0.3/bin/tig
│ ├── tree -> /nix/store/g75lq2kmfwx5sdqni6khv04kdklh3kq9-tree-1.7.0/bin/tree
├── etc
│ ├── bash_completion.d -> /nix/store/j3scw814k79mj3mm6x6yj9svvcq1plx4-tig-2.0.3/etc/bash_completion.d
│ └── tigrc -> /nix/store/j3scw814k79mj3mm6x6yj9svvcq1plx4-tig-2.0.3/etc/tigrc
└── manifest.nix -> /nix/store/gjia0lic4v117fm3la3c4wkk6ig2iw3q-env-manifest.nix
/nix/store/j3scw814k79mj3mm6x6yj9svvcq1plx4-tig-2.0.3
/nix/store/
+
<hash>
+
<name>
+
<version>
It was never easier to contribute to linux distirbution
GET LATEST nixpkgs
% git clone git://github.com/NixOS/nixpkgs.git
FIND A BUG AND FIX IT
% cd nixpkgs
% vim ...
% git commit -m "tig: package updated to 1.2.3"
TEST YOUR CHANGES
% nix-build -A tig
SEND A PULL REQUESTIs this all that Nix can do?
Hydra
NixOS
NixOps
source / binary model
multi-user
reproducable
multi-version
portable
Thank you
and stay "pure"
First steps with Nix
By Rok Garbas
