colin
5929286397
have to add nixpkgs stable to pin electrum to a buildable version
```
• Updated input 'mobile-nixos':
'github:nixos/mobile-nixos/42a30393b5eccaf7f73104fc39a71f0801340f5f' (2022-10-01)
→ 'github:nixos/mobile-nixos/efa5b5fae930370753d2e09361b38d10f0e0a00d' (2022-10-03)
• Updated input 'nixpkgs':
'github:NixOS/nixpkgs/10ecda252ce1b3b1d6403caeadbcc8f30d5ab796' (2022-09-30)
→ 'github:NixOS/nixpkgs/59d2991d4256cdca1c0cda45d876c80a0fe45c31' (2022-10-02)
```
102 lines
4.9 KiB
Nix
102 lines
4.9 KiB
Nix
# docs:
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# - <https://nixos.wiki/wiki/Flakes>
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# - <https://serokell.io/blog/practical-nix-flakes>
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{
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inputs = {
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nixpkgs-stable.url = "nixpkgs/nixos-22.05";
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nixpkgs.url = "nixpkgs/nixos-unstable";
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mobile-nixos = {
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url = "github:nixos/mobile-nixos";
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flake = false;
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};
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home-manager = {
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url = "github:nix-community/home-manager/release-22.05";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# TODO: set these up to follow our nixpkgs?
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sops-nix.url = "github:Mic92/sops-nix";
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impermanence.url = "github:nix-community/impermanence";
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};
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outputs = { self, nixpkgs, nixpkgs-stable, mobile-nixos, home-manager, sops-nix, impermanence }:
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let
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patchedPkgs = system: nixpkgs.legacyPackages.${system}.applyPatches {
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name = "nixpkgs-patched-uninsane";
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src = nixpkgs;
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patches = import ./nixpatches/list.nix nixpkgs.legacyPackages.${system}.fetchpatch;
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};
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# return something which behaves like `pkgs`, for the provided system
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# `local` = architecture of builder. `target` = architecture of the system beying deployed to
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nixpkgsFor = local: target: import (patchedPkgs target) { crossSystem = target; localSystem = local; };
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# evaluate ONLY our overlay, for the provided system
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customPackagesFor = local: target: import ./pkgs/overlay.nix (nixpkgsFor local target) (nixpkgsFor local target);
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decl-machine = { name, local, target }:
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let
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nixosSystem = import ((patchedPkgs target) + "/nixos/lib/eval-config.nix");
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in (nixosSystem {
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# by default the local system is the same as the target, employing emulation when they differ
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system = target;
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specialArgs = { inherit mobile-nixos home-manager impermanence; };
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modules = [
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./modules
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./machines/${name}
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(import ./helpers/set-hostname.nix name)
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home-manager.nixosModule
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impermanence.nixosModule
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sops-nix.nixosModules.sops
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{
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nixpkgs.config.allowUnfree = true;
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nixpkgs.overlays = [
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(import "${mobile-nixos}/overlay/overlay.nix")
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(import ./pkgs/overlay.nix)
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(next: prev: rec {
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# non-emulated packages build *from* local *for* target.
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# for large packages like the linux kernel which are expensive to build under emulation,
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# the config can explicitly pull such packages from `pkgs.cross` to do more efficient cross-compilation.
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cross = (nixpkgsFor local target) // (customPackagesFor local target);
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stable = import nixpkgs-stable { system = target; };
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# pinned packages:
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electrum = stable.electrum;
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})
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];
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}
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];
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});
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decl-bootable-machine = { name, local, target }: rec {
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nixosConfiguration = decl-machine { inherit name local target; };
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# this produces a EFI-bootable .img file (GPT with a /boot partition and a system (/ or /nix) partition).
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# after building this:
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# - flash it to a bootable medium (SD card, flash drive, HDD)
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# - resize the root partition (use cfdisk)
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# - mount the part
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# - chown root:nixbld <part>/nix/store
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# - chown root:root -R <part>/nix/store/*
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# - chown root:root -R <part>/persist # if using impermanence
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# - populate any important things (persist/, home/colin/.ssh, etc)
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# - boot
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# - if fs wasn't resized automatically, then `sudo btrfs filesystem resize max /`
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# - checkout this flake into /etc/nixos AND UPDATE THE FS UUIDS.
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# - `nixos-rebuild --flake './#<machine>' switch`
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img = nixosConfiguration.config.system.build.img;
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};
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machines.servo = decl-bootable-machine { name = "servo"; local = "aarch64-linux"; target = "aarch64-linux"; };
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machines.desko = decl-bootable-machine { name = "desko"; local = "x86_64-linux"; target = "x86_64-linux"; };
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machines.lappy = decl-bootable-machine { name = "lappy"; local = "x86_64-linux"; target = "x86_64-linux"; };
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machines.moby = decl-bootable-machine { name = "moby"; local = "aarch64-linux"; target = "aarch64-linux"; };
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# special cross-compiled variant, to speed up deploys from an x86 box to the arm target
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# note that these *do* produce different store paths, because the closure for the tools used to cross compile
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# v.s. emulate differ.
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# so deploying moby-cross and then moby incurs some rebuilding.
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machines.moby-cross = decl-bootable-machine { name = "moby"; local = "x86_64-linux"; target = "aarch64-linux"; };
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machines.rescue = decl-bootable-machine { name = "rescue"; local = "x86_64-linux"; target = "x86_64-linux"; };
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in {
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nixosConfigurations = builtins.mapAttrs (name: value: value.nixosConfiguration) machines;
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imgs = builtins.mapAttrs (name: value: value.img) machines;
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packages.x86_64-linux = customPackagesFor "x86_64-linux" "x86_64-linux";
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packages.aarch64-linux = customPackagesFor "aarch64-linux" "aarch64-linux";
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};
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}
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