nixos/home-assistant: fix error when switching between writable and none writable lovelace config

error message before was:
cp: not writing through dangling symlink '/var/lib/hass/ui-lovelace.yaml'

1 files changed, 2 insertions, 2 deletions

diff --git a/nixos/modules/services/home-automation/home-assistant.nix b/nixos/modules/services/home-automation/home-assistant.nix
index 54fd3e17292f6..6aa0ae9eba47a 100644
--- a/nixos/modules/services/home-automation/home-assistant.nix
+++ b/nixos/modules/services/home-automation/home-assistant.nix
@@ -455,10 +455,10 @@ in {
           ln -s /etc/home-assistant/configuration.yaml "${cfg.configDir}/configuration.yaml"
         '';
         copyLovelaceConfig = if cfg.lovelaceConfigWritable then ''
+          rm -f "${cfg.configDir}/ui-lovelace.yaml"
           cp --no-preserve=mode ${lovelaceConfigFile} "${cfg.configDir}/ui-lovelace.yaml"
         '' else ''
-          rm -f "${cfg.configDir}/ui-lovelace.yaml"
-          ln -s /etc/home-assistant/ui-lovelace.yaml "${cfg.configDir}/ui-lovelace.yaml"
+          ln -fs /etc/home-assistant/ui-lovelace.yaml "${cfg.configDir}/ui-lovelace.yaml"
         '';
         copyCustomLovelaceModules = if cfg.customLovelaceModules != [] then ''
           mkdir -p "${cfg.configDir}/www"