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mirror of https://github.com/NixOS/mobile-nixos.git synced 2024-12-17 13:10:29 +03:00
mobile-nixos/examples/demo/configuration.nix

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{ config, lib, pkgs, ... }:
let
inherit (lib) mkForce;
system_type = config.mobile.system.type;
# Why copy them all?
# Because otherwise the wallpaper picker will default to /nix/store as a path
# and this could get messy with the amazing amount of files there are in there.
# Why copy only pngs?
# Rendering of `svg` is hard! Not that it's costly in cpu time, but that the
# rendering might not be as expected depending on what renders it.
# The SVGs in that directory are used as an authoring format files, not files
# to be used as they are. They need to be pre-rendered.
wallpapers = pkgs.runCommandNoCC "wallpapers" {} ''
mkdir -p $out/
cp ${../../artwork/wallpapers}/*.png $out/
'';
in
{
imports = [
../../profiles/installer.nix
];
disabledModules = [
<nixpkgs/nixos/modules/installer/cd-dvd/iso-image.nix>
<nixpkgs/nixos/modules/installer/cd-dvd/installation-cd-base.nix>
];
config = lib.mkMerge [
{
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boot.growPartition = lib.mkDefault true;
services.xserver = {
enable = true;
libinput.enable = true;
videoDrivers = lib.mkDefault [ "fbdev" ];
# Automatically login as nixos.
displayManager.lightdm = {
enable = true;
autoLogin = {
enable = true;
user = "nixos";
};
};
};
powerManagement.enable = true;
hardware.pulseaudio.enable = true;
environment.systemPackages = with pkgs; [
(writeShellScriptBin "firefox" ''
export MOZ_USE_XINPUT2=1
exec ${pkgs.firefox}/bin/firefox "$@"
'')
sgtpuzzles
hard-reboot
hard-shutdown
];
# Hacky way to setup an initial brightness
# TODO: better factor this out...
mobile.boot.stage-1.initFramebuffer = ''
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 $brightness > /sys/class/leds/lcd-backlight/brightness
fi
'';
# Puts some icons on the desktop.
system.activationScripts.fillDesktop = let
minesDesktopFile = pkgs.writeScript "mines.desktop" ''
[Desktop Entry]
Version=1.0
Type=Application
Name=Mines
Exec=${pkgs.sgtpuzzles}/bin/sgt-puzzle-mines
'';
homeDir = "/home/nixos/";
desktopDir = homeDir + "Desktop/";
in ''
mkdir -p ${desktopDir}
chown nixos ${homeDir} ${desktopDir}
ln -sfT ${minesDesktopFile} ${desktopDir + "mines.desktop"}
'';
# FIXME : Stop relying on initrd for `ssh` via USB.
networking.networkmanager.enable = true;
networking.networkmanager.unmanaged = [ "rndis0" "usb0" ];
# Setup USB gadget networking in initrd...
mobile.boot.stage-1.networking.enable = true;
#mobile.boot.stage-1.ssh.enable = true;
# Start SSH by default...
systemd.services.sshd.wantedBy = lib.mkOverride 10 [ "multi-user.target" ];
services.openssh.permitRootLogin = lib.mkForce "yes";
# Forcibly set a password on users...
# FIXME: highly insecure!
# FIXME: Figure out why this breaks...
#services.openssh.extraConfig = "PermitEmptyPasswords yes";
users.users.nixos.password = "nixos";
users.users.root.password = "nixos";
# Okay, systemd-udev-settle times out... no idea why yet...
# Though, it seems fine to simply disable it.
# FIXME : figure out why systemd-udev-settle doesn't work.
systemd.services.systemd-udev-settle.enable = false;
}
# Customized XFCE environment
{
services.xserver = {
desktopManager.xfce.enable = true;
};
environment.systemPackages = with pkgs; [
adapta-gtk-theme
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breeze-icons
];
fonts.fonts = with pkgs; [
aileron
];
environment.etc."xdg/xfce4" = {
# TODO: DPI/size settings, so that a DPI can be derived from the device info.
source = pkgs.runCommandNoCC "xfce4-defaults" {} ''
cp -r ${./xdg/xfce4} $out
wallpaper="${wallpapers}/mobile-nixos-19.09.png"
substituteInPlace $out/xfconf/xfce-perchannel-xml/xfce4-desktop.xml \
--subst-var wallpaper
'';
};
}
# Replace xfwm with awesome with a custom config.
{
services.xserver = {
desktopManager.xfce.enableXfwm = false;
desktopManager.xfce.extraSessionCommands = ''
awesome &
'';
};
environment.systemPackages = with pkgs;
let
close = writeShellScript "action-close-window" ''
awesome-client '
local awful = require("awful");
local c = awful.client.focus.filter(client.focus)
if c then
c:kill()
end
'
'';
in
[
awesome
(runCommandNoCC "awesome-actions" {} ''
mkdir -vp $out/share/applications/
(cd $out/share/applications/
cat > awesome-close.desktop <<EOF
[Desktop Entry]
Name=Close active window
Exec=${close}
Icon=process-stop
EOF
)
''/* TODO: better icon than process-stop */)
];
environment.etc."xdg/awesome" = {
source = ./xdg/awesome;
};
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services.unclutter.enable = true;
}
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# Onboard on-screen keyboard
{
environment.systemPackages = with pkgs; [
onboard
];
environment.etc."xdg/autostart/onboard-boottime-configuration.desktop" = {
text = let script = pkgs.writeShellScript "onboard-boottime-configuration" ''
set -u
set -e
# A bit rude, but this ensures the keyboard always starts at a quarter
# of the resolution.
# onboard will not accept -s to set size with a docked keyboard.
height=$(( $( ${pkgs.xlibs.xwininfo}/bin/xwininfo -root | grep '^\s\+Height:' | cut -d':' -f2 ) / 4 ))
${pkgs.gnome3.dconf}/bin/dconf write /org/onboard/window/landscape/dock-height "$height" || :
${pkgs.gnome3.dconf}/bin/dconf write /org/onboard/window/portrait/dock-height "$height" || :
'';
in ''
[Desktop Entry]
Name=Onboard boot time configuration
Exec=${script}
X-XFCE-Autostart-Override=true
'';
};
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environment.etc."xdg/autostart/onboard-autostart.desktop" = {
source = pkgs.runCommandNoCC "onboard-autostart.desktop" {} ''
cat "${pkgs.onboard}/etc/xdg/autostart/onboard-autostart.desktop" > $out
echo "X-XFCE-Autostart-Override=true" >> $out
substituteInPlace $out \
--replace "Icon=onboard" "Icon=input-keyboard"
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'';
};
}
# FIXME : depthcharge is the wrong assumption.
# A better abstraction over the X11 stack is required within mobile-nixos.
# The qemu VM requires the fbdev one to work as expcted.
# The android devices may have hwcomposer stuff coming.
(lib.mkIf (system_type == "depthcharge") {
services.xserver = {
videoDrivers = [ "modesetting" ];
};
})
];
}