nixpkgs/pkgs/applications/window-managers/sway/load-configuration-from-etc.patch

From 26f9c65ef037892977a824f0d7d7111066856b53 Mon Sep 17 00:00:00 2001
From: Michael Weiss <dev.primeos@gmail.com>
Date: Sat, 27 Apr 2019 14:26:16 +0200
Subject: [PATCH] Load configs from /etc but fallback to /nix/store

This change will load all configuration files from /etc, to make it easy
to override them, but fallback to /nix/store/.../etc/sway/config to make
Sway work out-of-the-box with the default configuration on non NixOS
systems.
---
 meson.build   | 3 ++-
 sway/config.c | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 02b5d606..c03a9c0f 100644
--- a/meson.build
+++ b/meson.build
@@ -129,7 +129,8 @@ if scdoc.found()
 	endforeach
 endif
 
-add_project_arguments('-DSYSCONFDIR="/@0@"'.format(join_paths(prefix, sysconfdir)), language : 'c')
+add_project_arguments('-DSYSCONFDIR="/@0@"'.format(sysconfdir), language : 'c')
+add_project_arguments('-DNIX_SYSCONFDIR="/@0@"'.format(join_paths(prefix, sysconfdir)), language : 'c')
 
 version = '"@0@"'.format(meson.project_version())
 if git.found()
diff --git a/sway/config.c b/sway/config.c
index 4cd21bbc..dd855753 100644
--- a/sway/config.c
+++ b/sway/config.c
@@ -317,6 +317,7 @@ static char *get_config_path(void) {
 		"$XDG_CONFIG_HOME/i3/config",
 		SYSCONFDIR "/sway/config",
 		SYSCONFDIR "/i3/config",
+		NIX_SYSCONFDIR "/sway/config",
 	};
 
 	char *config_home = getenv("XDG_CONFIG_HOME");
-- 
2.19.2