mirror of
https://github.com/LnL7/nix-darwin.git
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215 lines
6.7 KiB
Markdown
215 lines
6.7 KiB
Markdown
[<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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Nix modules for darwin, `/etc/nixos/configuration.nix` for macOS.
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## Install
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```bash
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nix-build https://github.com/LnL7/nix-darwin/archive/master.tar.gz -A installer
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./result/bin/darwin-installer
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```
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> NOTE: the system activation scripts don't overwrite existing etc files, so files like `/etc/bashrc` and `/etc/zshrc` won't be
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> updated by default. If you didn't use the installer or skipped some of the options you'll have to take care of this yourself.
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> Either modify the existing file to source/import the one from `/etc/static` or remove it. Some examples:
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- `mv /etc/bashrc /etc/bashrc.orig`
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- `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
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The installer will configure a channel for this repository.
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```bash
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nix-channel --update darwin
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darwin-rebuild changelog
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```
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## Uninstalling
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There's also an uninstaller if you don't like the project and want to
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remove the configured files and services.
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```bash
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nix-build https://github.com/LnL7/nix-darwin/archive/master.tar.gz -A uninstaller
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./result/bin/darwin-uninstaller
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```
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## Example configuration
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Configuration lives in `~/.nixpkgs/darwin-configuration.nix`. Check out
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[modules/examples](https://github.com/LnL7/nix-darwin/tree/master/modules/examples) for some example configurations.
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```nix
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{ pkgs, ... }:
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{
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# List packages installed in system profile. To search by name, run:
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# $ nix-env -qaP | grep wget
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environment.systemPackages =
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[ pkgs.vim
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];
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# Auto upgrade nix package and the daemon service.
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services.nix-daemon.enable = true;
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nix.package = pkgs.nix;
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}
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```
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## Flakes (experimental)
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There is also preliminary support for building your configuration using a [flake](https://nixos.wiki/wiki/Flakes). This
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is mostly based on the flake support that was added to NixOS.
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A minimal example of using an existing configuration.nix:
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```nix
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{
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description = "John's darwin system";
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inputs = {
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nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-20.09-darwin";
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darwin.url = "github:lnl7/nix-darwin/master";
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darwin.inputs.nixpkgs.follows = "nixpkgs";
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};
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outputs = { self, darwin, nixpkgs }: {
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darwinConfigurations."Johns-MacBook" = darwin.lib.darwinSystem {
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system = "x86_64-darwin";
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modules = [ ./configuration.nix ];
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};
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};
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}
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```
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Inputs from the flake can also be passed to `darwinSystem`, these inputs are then
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accessible as an argument, similar to pkgs and lib inside the configuration.
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```nix
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darwin.lib.darwinSystem {
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system = "x86_64-darwin";
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modules = [ ... ];
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inputs = { inherit darwin dotfiles nixpkgs; };
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}
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```
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Since the installer doesn't work with flakes out of the box yet nix-darwin will need to
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be to be bootstrapped using the installer or manually. Afterwards the flake based
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configuration can be built. The `hostname(1)` of your system will be used to decide
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which darwin configuration is applied if it's not specified explicitly in the flake ref.
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```sh
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nix build ~/.config/darwin\#darwinConfigurations.Johns-MacBook.system
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./result/sw/bin/darwin-rebuild switch --flake ~/.config/darwin
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```
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## Manual Install
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```bash
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# Before 10.15 Catalina
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sudo ln -s private/var/run /run
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# After 10.15 Catalina
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echo -e "run\tprivate/var/run" | sudo tee -a /etc/synthetic.conf
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/System/Library/Filesystems/apfs.fs/Contents/Resources/apfs.util -B
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/System/Library/Filesystems/apfs.fs/Contents/Resources/apfs.util -t
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# Configure the channel
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nix-channel --add https://github.com/LnL7/nix-darwin/archive/master.tar.gz darwin
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nix-channel --update
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export NIX_PATH=darwin-config=$HOME/.nixpkgs/darwin-configuration.nix:$HOME/.nix-defexpr/channels:$NIX_PATH
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# Or use a local git repository
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git clone git@github.com:LnL7/nix-darwin.git ~/.nix-defexpr/darwin
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export NIX_PATH=darwin=$HOME/.nix-defexpr/darwin:darwin-config=$HOME/.nixpkgs/darwin-configuration.nix:$NIX_PATH
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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
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# darwin-rebuild is to old to activate the system.
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$(nix-build '<darwin>' -A system --no-out-link)/sw/bin/darwin-rebuild build
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$(nix-build '<darwin>' -A system --no-out-link)/sw/bin/darwin-rebuild switch
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. /etc/static/bashrc
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```
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... or for `fish`:
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```fish
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(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
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```
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This will create and manage a system profile in `/run/current-system`, just like nixos.
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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`.
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If you want to change these you can set your own with `nix.nixPath = [ ];`.
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```
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$ darwin-rebuild switch
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building the system configuration...
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these derivations will be built:
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/nix/store/vfad6xgjzr56jcs051cg6vzch4dby92y-etc-zprofile.drv
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/nix/store/cbmkscxsz0k02ynaph5xaxm1aql0p3vq-etc.drv
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/nix/store/r5fpn177jhc16f8iyzk12gcw4pivzpbw-nixdarwin-system-16.09.drv
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building path(s) ‘/nix/store/wlq89shja597ip7mrmjv7yzk2lwyh8n0-etc-zprofile’
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building path(s) ‘/nix/store/m8kcm1pa5j570h3indp71a439wsh9lzq-etc’
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building path(s) ‘/nix/store/l735ffcdvcvy60i8pqf6v00vx7lnm6mz-nixdarwin-system-16.09’
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setting up /etc...
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setting up launchd services...
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writing defaults...
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$
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```
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```
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$ darwin-option services.activate-system.enable
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Value:
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true
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Default:
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false
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Example:
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no example
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Description:
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Whether to activate system at boot time.
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```
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## Documentation
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Reference documentation of all the options is available here
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https://lnl7.github.io/nix-darwin/manual/index.html#sec-options.
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This can also be accessed locally using `man 5 configuration.nix`.
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There's also a small wiki https://github.com/LnL7/nix-darwin/wiki about
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specific topics, like macOS upgrades.
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## Tests
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There are basic tests that run sanity checks for some of the modules,
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you can run them like this:
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```bash
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nix-build release.nix -A tests.environment-path
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```
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## Contributing
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Let's make nix on darwin awesome!
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Don't hesitate to contribute modules or open an issue.
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To build your configuration with local changes you can run this. This
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flag can also be used to override darwin-config or nixpkgs, for more
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information on the `-I` flag look at the nix-build manpage.
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```bash
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darwin-rebuild switch -I darwin=.
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```
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Also feel free to contact me if you have questions,
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- IRC - LnL, you can find me in #nixos or #nix-darwin on freenode.net
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- @lnl7 on twitter
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