140 lines
3.8 KiB
Nix
140 lines
3.8 KiB
Nix
{ config, pkgs, lib, ... }:
|
|
|
|
let
|
|
lightdmConf = builtins.readFile ../../assets/conf/core/lightdm.conf;
|
|
lockPng = ../../assets/lock.png;
|
|
|
|
greeterConfPath = ../../assets/conf/core/lightdm-gtk-greeter.conf;
|
|
greeterRaw = builtins.readFile greeterConfPath;
|
|
|
|
# Extract "key = value" from the greeter conf.
|
|
# Returns null if not found.
|
|
getIniValue = key:
|
|
let
|
|
lines = lib.splitString "\n" greeterRaw;
|
|
|
|
# Captures the value part (group 0) from a single line.
|
|
# We match line-by-line because Nix regex does NOT support PCRE flags like (?s).
|
|
m =
|
|
let
|
|
ms = builtins.filter (x: x != null) (map (line:
|
|
builtins.match
|
|
("^[[:space:]]*" + key + "[[:space:]]*=[[:space:]]*([^#;]+).*$")
|
|
line
|
|
) lines);
|
|
in
|
|
if ms == [] then null else builtins.elemAt ms 0;
|
|
in
|
|
if m == null then null else lib.strings.trim (builtins.elemAt m 0);
|
|
|
|
# In your greeter.conf these are *package keys*, not theme names.
|
|
themePkgKey = getIniValue "theme-name";
|
|
iconPkgKey = getIniValue "icon-theme-name";
|
|
cursorPkgKey = getIniValue "cursor-theme-name";
|
|
|
|
cursorSizeStr = getIniValue "cursor-theme-size";
|
|
cursorSize =
|
|
if cursorSizeStr == null then null
|
|
else lib.toInt (lib.strings.trim cursorSizeStr);
|
|
|
|
# Map package-keys (from greeter.conf) -> { package, name }
|
|
#
|
|
# IMPORTANT:
|
|
# - "name" must be the real theme/icon/cursor NAME as seen under share/themes or share/icons.
|
|
# - "package" is the Nixpkgs derivation providing it.
|
|
pkgMap = {
|
|
catppuccinThemePkg = {
|
|
package = pkgs.catppuccin-gtk.override {
|
|
accents = [ "blue" ];
|
|
variant = "mocha";
|
|
size = "standard";
|
|
tweaks = [ ];
|
|
};
|
|
name = "Catppuccin-Mocha-Standard-Blue-Dark";
|
|
};
|
|
|
|
papirus-icon-theme = {
|
|
package = pkgs.papirus-icon-theme;
|
|
name = "Papirus-Dark";
|
|
};
|
|
|
|
bibata-cursors = {
|
|
package = pkgs.bibata-cursors;
|
|
name = "Bibata-Modern-Ice";
|
|
};
|
|
};
|
|
|
|
pick = key:
|
|
if key == null then
|
|
throw "lightdm: missing required key in ${toString greeterConfPath}"
|
|
else if !(pkgMap ? "${key}") then
|
|
throw "lightdm: unknown package key '${key}' in ${toString greeterConfPath}. Known keys: ${lib.concatStringsSep ", " (builtins.attrNames pkgMap)}"
|
|
else
|
|
pkgMap."${key}";
|
|
|
|
themeSel = pick themePkgKey;
|
|
iconSel = pick iconPkgKey;
|
|
cursorSel = pick cursorPkgKey;
|
|
|
|
# Rewrite greeter.conf so LightDM sees REAL names, not package keys.
|
|
# Also force background to lockPng.
|
|
greeterFixed =
|
|
''
|
|
[greeter]
|
|
theme-name = ${themeSel.name}
|
|
icon-theme-name = ${iconSel.name}
|
|
cursor-theme-name = ${cursorSel.name}
|
|
${lib.optionalString (cursorSize != null) "cursor-theme-size = ${toString cursorSize}"}
|
|
''
|
|
+ "\n"
|
|
+ greeterRaw;
|
|
in
|
|
{
|
|
services.greetd.enable = false;
|
|
|
|
services.xserver = {
|
|
enable = true;
|
|
desktopManager.xterm.enable = false;
|
|
|
|
displayManager.lightdm = {
|
|
enable = true;
|
|
background = lockPng;
|
|
|
|
greeters.gtk = {
|
|
enable = true;
|
|
|
|
theme = {
|
|
name = themeSel.name;
|
|
package = themeSel.package;
|
|
};
|
|
|
|
iconTheme = {
|
|
name = iconSel.name;
|
|
package = iconSel.package;
|
|
};
|
|
|
|
cursorTheme = {
|
|
name = cursorSel.name;
|
|
package = cursorSel.package;
|
|
} // lib.optionalAttrs (cursorSize != null) {
|
|
size = cursorSize;
|
|
};
|
|
|
|
# This includes your (rewritten) greeter config.
|
|
extraConfig = greeterFixed;
|
|
};
|
|
|
|
extraConfig = lightdmConf;
|
|
};
|
|
};
|
|
|
|
programs.hyprland.enable = true;
|
|
|
|
# Optional: make them available system-wide as well
|
|
environment.systemPackages = [
|
|
themeSel.package
|
|
iconSel.package
|
|
cursorSel.package
|
|
];
|
|
}
|