From d97cdfc591baf790ce5a9836e1503dfb0eb152e6 Mon Sep 17 00:00:00 2001 From: aszlig Date: Mon, 3 Jul 2017 07:33:35 +0200 Subject: nixos/xserver: Document the layouts sed expression This was brought up by @0xABAB in #26984 by the following comment: https://github.com/NixOS/nixpkgs/pull/26984#discussion_r125146405 Signed-off-by: aszlig --- nixos/modules/services/x11/xserver.nix | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'nixos/modules/services') diff --git a/nixos/modules/services/x11/xserver.nix b/nixos/modules/services/x11/xserver.nix index 01bab8fccadb..504a6b79d577 100644 --- a/nixos/modules/services/x11/xserver.nix +++ b/nixos/modules/services/x11/xserver.nix @@ -652,6 +652,10 @@ in inherit (cfg) layout xkbDir; } '' if sed -n -e ':i /^! \(layout\|variant\) *$/ { + # Loop through all of the layouts/variants until we hit another ! at + # the start of the line or the line is empty ('t' branches only if + # the last substitution was successful, so if the line is empty the + # substition will fail). :l; n; /^!/bi; s/^ *\([^ ]\+\).*/\1/p; tl }' "$xkbDir/rules/base.lst" | grep -qxF "$layout" then -- cgit 1.4.1