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xfce.xfce4-power-manager: use fixed path for helpers

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Using a nix store path for `xfpm-power-backlight-helper` and `xfce4-pm-helper` causes permission
errors after a rebuild when adjusting brightness or putting the system to sleep, because the
permitted executables are different from the ones `xfce4-power-manager` wants to execute.  Using a
fixed path (/run/current-system/sw/bin) means the paths do not change after a rebuild, so there's no
permission error.

A similar approach is taken with gnome's `gsd-backlight-helper`.

Fixes #77485
This commit is contained in:
Paul Stadig
2023-07-27 06:12:34 -04:00
parent 54b701f3f8
commit 6a2999310e
1 changed files with 8 additions and 0 deletions
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pkgs/desktops/xfce/core/xfce4-power-manager/default.nix
+8
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@@ -26,6 +26,14 @@ mkXfceDerivation {
xfce4-panel
];
# using /run/current-system/sw/bin instead of nix store path prevents polkit permission errors on
# rebuild. See https://github.com/NixOS/nixpkgs/issues/77485
postPatch = ''
substituteInPlace src/org.xfce.power.policy.in2 --replace "@sbindir@" "/run/current-system/sw/bin"
substituteInPlace common/xfpm-brightness.c --replace "SBINDIR" "\"/run/current-system/sw/bin\""
substituteInPlace src/xfpm-suspend.c --replace "SBINDIR" "\"/run/current-system/sw/bin\""
'';
meta = with lib; {
description = "A power manager for the Xfce Desktop Environment";
maintainers = with maintainers; [ ] ++ teams.xfce.members;