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[<img src="https://lnl7.github.io/nix-darwin/images/nix-darwin.png" width="200px" alt="logo" />](https://github.com/LnL7/nix-darwin)
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# nix-darwin
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[![Build Status](https://travis-ci.org/LnL7/nix-darwin.svg?branch=master)](https://travis-ci.org/LnL7/nix-darwin)
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Nix modules for darwin, `/etc/nixos/configuration.nix` for macOS.
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## Install
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```bash
bash <(curl https://raw.githubusercontent.com/LnL7/nix-darwin/master/bootstrap.sh)
```
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This will link the system profile to `/run/current-system`. You have to create `/run` or symlink it to `private/var/run`.
If you use a symlink, you'll probably also want to add `services.activate-system.enable = true;` to your configuration.
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> NOTE: the system activation scripts don't overwrite existing etc files, so files like `/etc/bashrc` won't be used by default.
Either modify the existing file to source/import the one from `/etc/static` or remove it. Some examples:
- `mv /etc/bashrc /etc/bashrc.orig`
- `echo 'if test -e /etc/static/bashrc; then . /etc/static/bashrc; fi' | sudo tee -a /etc/bashrc`
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- `echo 'if test -e /etc/static/bashrc; then . /etc/static/bashrc; fi' | tee -a ~/.bashrc`
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## Updating
The bootstrap installer will configure a channel for this repository.
```bash
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nix-channel --update darwin
darwin-rebuild changelog
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```
## Example configuration
Check out [modules/examples](https://github.com/LnL7/nix-darwin/tree/master/modules/examples) for some example configurations.
```nix
{ pkgs, ... }:
{
# List packages installed in system profile. To search by name, run:
# $ nix-env -qaP | grep wget
environment.systemPackages =
[ pkgs.nix-repl
];
# Create /etc/bashrc that loads the nix-darwin environment.
programs.bash.enable = true;
# Recreate /run/current-system symlink after boot.
services.activate-system.enable = true;
}
```
## Manual Install
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```bash
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sudo ln -s private/var/run /run
# Configure the channel
nix-channel --add https://github.com/LnL7/nix-darwin/archive/master.tar.gz darwin
nix-channel --update
export NIX_PATH=darwin=darwin-config=$HOME/.nixpkgs/darwin-configuration.nix:$HOME/.nix-defexpr/channels:$NIX_PATH
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# Or use a local git repository
git clone git@github.com:LnL7/nix-darwin.git ~/.nix-defexpr/darwin
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export NIX_PATH=darwin=$HOME/.nix-defexpr/darwin:darwin-config=$HOME/.nixpkgs/darwin-configuration.nix:$NIX_PATH
cp ~/.nix-defexpr/darwin/modules/examples/simple.nix ~/.nixpkgs/darwin-configuration.nix
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# you can also use this to rebootstrap nix-darwin in case
# darwin-rebuild is to old to activate the system.
$(nix-build '<darwin>' -A system --no-out-link)/sw/bin/darwin-rebuild build
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$(nix-build '<darwin>' -A system --no-out-link)/sw/bin/darwin-rebuild switch
. /etc/static/bashrc
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```
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... or for `fish`:
```fish
(nix-build '<darwin>' -A system --no-out-link)/sw/bin/darwin-rebuild build
(nix-build '<darwin>' -A system --no-out-link)/sw/bin/darwin-rebuild switch
```
This will create and manage a system profile in `/run/current-system`, just like nixos.
The default `NIX_PATH` in nix-darwin will look for this repository in `~/.nix-defexpr/darwin` and for your configuration in `~/.nixpkgs/darwin-configuration.nix`.
If you want to change these you can set your own with `nix.nixPath = [ ];`.
```
$ darwin-rebuild switch
building the system configuration...
these derivations will be built:
/nix/store/vfad6xgjzr56jcs051cg6vzch4dby92y-etc-zprofile.drv
/nix/store/cbmkscxsz0k02ynaph5xaxm1aql0p3vq-etc.drv
/nix/store/r5fpn177jhc16f8iyzk12gcw4pivzpbw-nixdarwin-system-16.09.drv
building path(s) /nix/store/wlq89shja597ip7mrmjv7yzk2lwyh8n0-etc-zprofile
building path(s) /nix/store/m8kcm1pa5j570h3indp71a439wsh9lzq-etc
building path(s) /nix/store/l735ffcdvcvy60i8pqf6v00vx7lnm6mz-nixdarwin-system-16.09
setting up /etc...
setting up launchd services...
writing defaults...
$
```
```
$ darwin-option services.activate-system.enable ~/src/nix-darwin
Value:
true
Default:
false
Example:
no example
Description:
Whether to activate system at boot time.
```
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## Modules
- [`environment`](https://github.com/LnL7/nix-darwin/blob/master/modules/environment)
- [`launchd.daemons`](https://github.com/LnL7/nix-darwin/blob/master/modules/launchd/launchd.nix)
- [`launchd.envVariables`](https://github.com/LnL7/nix-darwin/blob/master/modules/launchd)
- [`launchd.user.agents`](https://github.com/LnL7/nix-darwin/blob/master/modules/launchd/launchd.nix)
- [`networking`](https://github.com/LnL7/nix-darwin/blob/master/modules/networking)
- [`nix`](https://github.com/LnL7/nix-darwin/tree/master/modules/nix)
- [`programs`](https://github.com/LnL7/nix-darwin/tree/master/modules/programs)
- [`security`](https://github.com/LnL7/nix-darwin/tree/master/modules/security)
- [`services`](https://github.com/LnL7/nix-darwin/tree/master/modules/services)
- [`system.defaults`](https://github.com/LnL7/nix-darwin/tree/master/modules/system/defaults)
- [`system`](https://github.com/LnL7/nix-darwin/tree/master/modules/system)
- [`time`](https://github.com/LnL7/nix-darwin/tree/master/modules/time)
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## Tests
There are basic tests that run sanity checks for some of the modules,
you can run them like this:
```bash
nix-build release.nix -A tests.environment-path
```
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## Contributing
Let's make nix on darwin awesome!
Don't hesitate to contribute modules or open an issue.
To build your configuration with local changes you can run this. This
flag can also be used to override darwin-config or nixpkgs, for more
information on the `-I` flag look at the nix-build manpage.
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```bash
darwin-rebuild switch -I darwin=.
```
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Also feel free to contact me if you have questions,
- IRC - LnL, you can find me in #nixos or ##nix-darwin on freenode.net
- @lnl7 on twitter