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release-tools: Split useful Mobile NixOS evaluation tools

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This is to be used by the documentation system, without requiring to
repeat all of the code.
This commit is contained in:
Samuel Dionne-Riel 2020-04-04 14:36:23 -04:00
parent ae2be46466
commit 9179158645
2 changed files with 56 additions and 37 deletions
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47
lib/release-tools.nix Normal file
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@ -0,0 +1,47 @@
{
# This should *never* rely on lib or pkgs.
all-devices =
builtins.filter
(d: builtins.pathExists (../. + "/devices/${d}/default.nix"))
(builtins.attrNames (builtins.readDir ../devices))
;
# These can rely freely on lib, avoir depending on pkgs.
withPkgs = pkgs:
let
inherit (pkgs) lib;
in
rec {
specialConfig = {name, buildingForSystem, system, config ? {}}: {
special = true;
inherit name;
config = lib.mkMerge [
config
{
mobile.device.info = {};
mobile.system.type = "none";
mobile.hardware.soc = {
x86_64-linux = "generic-x86_64";
aarch64-linux = "generic-aarch64";
armv7l-linux = "generic-armv7l";
}.${buildingForSystem};
nixpkgs.localSystem = knownSystems.${system};
}
];
};
# Shortcuts from a simple system name to the structure required for
# localSystem and crossSystem
knownSystems = {
x86_64-linux = lib.systems.examples.gnu64;
aarch64-linux = lib.systems.examples.aarch64-multiplatform;
armv7l-linux = lib.systems.examples.armv7l-hf-multiplatform;
};
# Given a device compatible with `default.nix`, eval.
evalFor = evalWithConfiguration {};
evalWithConfiguration = additionalConfiguration: device:
import ../. { inherit device additionalConfiguration; }
;
};
}

46
release.nix
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@ -8,11 +8,8 @@
# Note:
# Verify that .ci/instantiate-all.nix lists the expected paths when adding to this file.
let
all-devices =
builtins.filter
(d: builtins.pathExists (./. + "/devices/${d}/default.nix"))
(builtins.attrNames (builtins.readDir ./devices))
;
mobileReleaseTools = (import ./lib/release-tools.nix);
inherit (mobileReleaseTools) all-devices;
in
{ mobile-nixos ? builtins.fetchGit ./.
# By default, builds all devices.
@ -29,12 +26,13 @@ in
let
# We require some `lib` stuff in here.
# Pick a lib from the ambient <nixpkgs>.
inherit (import <nixpkgs> {}) lib releaseTools;
# Given a device compatible with `default.nix`, eval.
evalFor = evalWithConfiguration {};
evalWithConfiguration = additionalConfiguration: device:
import ./. { inherit device additionalConfiguration; }
pkgs' = import <nixpkgs> {};
inherit (pkgs') lib releaseTools;
inherit (mobileReleaseTools.withPkgs pkgs')
evalFor
evalWithConfiguration
knownSystems
specialConfig
;
# Systems we should eval for, per host system.
@ -53,14 +51,6 @@ let
];
};
# Shortcuts from a simple system name to the structure required for
# localSystem and crossSystem
knownSystems = {
x86_64-linux = lib.systems.examples.gnu64;
aarch64-linux = lib.systems.examples.aarch64-multiplatform;
armv7l-linux = lib.systems.examples.armv7l-hf-multiplatform;
};
# Given an evaluated "device", filters `pkgs` down to only our packages
# unique to the overaly.
# Also removes some non-packages from the overlay.
@ -90,24 +80,6 @@ let
}
;
specialConfig = {name, buildingForSystem, system, config ? {}}: {
special = true;
inherit name;
config = lib.mkMerge [
config
{
mobile.device.info = {};
mobile.system.type = "none";
mobile.hardware.soc = {
x86_64-linux = "generic-x86_64";
aarch64-linux = "generic-aarch64";
armv7l-linux = "generic-armv7l";
}.${buildingForSystem};
nixpkgs.localSystem = knownSystems.${system};
}
];
};
# Given a system builds run on, this will return a set of further systems
# this builds in, either native or cross.
# The values are `overlayForEval` applied for the pair local/cross systems.