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mirror of https://github.com/NixOS/mobile-nixos.git synced 2024-12-16 20:21:32 +03:00
mobile-nixos/examples/hello/configuration.nix

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{ config, lib, pkgs, ... }:
let
inherit (lib.strings) makeBinPath;
hello-gui = pkgs.mobile-nixos.stage-1.script-loader.wrap {
name = "hello-gui";
applet = "${pkgs.callPackage ./app {}}/libexec/app.mrb";
env = {
PATH = "${makeBinPath (with pkgs;[
systemd # journalctl
glibc # iconv
utillinux # lsblk
input-utils # lsinput
])}:$PATH";
};
};
tmpfsConf = {
device = "tmpfs";
fsType = "tmpfs";
neededForBoot = true;
};
in
{
imports = [
./workaround-v4l_id-hang.nix
];
environment.systemPackages = with pkgs; [
hello-gui
input-utils
];
# Make the system rootfs different enough that mixing stage-1 and stage-2
# will fail and not have weird unexpected behaviours.
mobile.generatedFilesystems = {
rootfs = lib.mkDefault {
label = lib.mkForce "MOBILE_HELLO";
id = lib.mkForce "12345678-1324-1234-0000-D00D00000001";
};
};
fileSystems = {
"/" = lib.mkDefault {
autoResize = lib.mkForce false;
};
# Nothing is saved, except for the nix store being rehydrated.
"/tmp" = tmpfsConf;
"/var/log" = tmpfsConf;
"/home" = tmpfsConf;
};
mobile.boot.stage-1.bootConfig = {
# This will be useful for debugging boot issues over serial in the default
# configuration.
log.level = "DEBUG";
};
systemd.services.hello-gui = {
description = "GUI for the hello example of Mobile NixOS";
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Restart = "always";
SyslogIdentifier = "hello-gui";
ExecStart = ''
${hello-gui}/bin/hello-gui
'';
};
};
# Only enable `adb` if we know how to.
# FIXME: relies on implementation details. Poor separation of concerns.
mobile.adbd.enable = (config.mobile.system.type == "android") &&
(config.mobile.usb.mode != "gadgetfs" || config.mobile.usb.gadgetfs.functions ? ffs)
;
boot.postBootCommands = lib.mkOrder (-1) ''
brightness=10
echo "Setting brightness to $brightness"
if [ -e /sys/class/backlight/backlight/brightness ]; then
echo $(($(cat /sys/class/backlight/backlight/max_brightness) * brightness / 100)) > /sys/class/backlight/backlight/brightness
elif [ -e /sys/class/leds/lcd-backlight/max_brightness ]; then
echo $(($(cat /sys/class/leds/lcd-backlight/max_brightness) * brightness / 100)) > /sys/class/leds/lcd-backlight/brightness
elif [ -e /sys/class/leds/lcd-backlight/brightness ]; then
# Assumes max brightness is 100... probably wrong, but good enough, eh.
echo $brightness > /sys/class/leds/lcd-backlight/brightness
fi
'';
users.users.nixos = {
isNormalUser = true;
extraGroups = [ "wheel" "networkmanager" "video" ];
};
security.sudo = {
enable = true;
wheelNeedsPassword = lib.mkForce false;
};
services.mingetty.autologinUser = "nixos";
system.build = {
app-simulator = pkgs.callPackage ./app/simulator.nix {};
};
}