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nixos/xserver: Don't use exec in xkb-layouts-exist

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First of all, thanks to @pbogdan for getting this problem reproduced:

https://github.com/NixOS/nixpkgs/commit/2014db3efcd2a#commitcomment-22815396

Also thanks to @vcunat for bringing this to my attention:

https://github.com/NixOS/nixpkgs/commit/44c64fef16ed5#commitcomment-22813503

Although it is not entirely clear why Nix has killed the build prior to
finishing, it seems to be related to the process substition I was using.

So instead of using "exec touch", let's wrap this inside an if so we
don't exit too early.

Tested this against all sub-tests in nixos/tests/keymap.nix and also a
few configurations with wrong keyboard layout definitions.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
This commit is contained in:
aszlig 2017-06-28 21:25:10 +02:00
parent 35b974a8e9
commit e82d126212
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1 changed files with 7 additions and 4 deletions
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11
nixos/modules/services/x11/xserver.nix
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@ -651,10 +651,13 @@ in
system.extraDependencies = singleton (pkgs.runCommand "xkb-layouts-exist" { system.extraDependencies = singleton (pkgs.runCommand "xkb-layouts-exist" {
inherit (cfg) layout xkbDir; inherit (cfg) layout xkbDir;
} '' } ''
set -x if sed -n -e ':i /^! \(layout\|variant\) *$/ {
sed -n -e ':i /^! \(layout\|variant\) *$/ { :l; n; /^!/bi; s/^ *\([^ ]\+\).*/\1/p; tl
:l; n; /^!/bi; s/^ *\([^ ]\+\).*/\1/p; tl }' "$xkbDir/rules/base.lst" | grep -qxF "$layout"
}' "$xkbDir/rules/base.lst" | grep -qxF "$layout" && exec touch "$out" then
touch "$out"
exit 0
fi
cat >&2 <<-EOF cat >&2 <<-EOF