nixos/dms-greeter: skip invalid customThemeFile in preStart

Avoid attempting to copy a null/empty/missing customThemeFile path by validating the jq result and file existence before cp.
2026-03-15 22:19:33 +08:00
parent d71b60ca60
commit 391a164758
1 changed files with 3 additions and 1 deletions
@@ -290,7 +290,9 @@ in
        fi

        if [ -f settings.json ]; then
-            if cp "$(${jq} -r '.customThemeFile' settings.json)" custom-theme.json; then
+            theme_file="$(${jq} -r '.customThemeFile // empty' settings.json)"
+            if [ -f "$theme_file" ] && [ -r "$theme_file" ]; then
+                cp "$theme_file" custom-theme.json
                mv settings.json settings.orig.json
                ${jq} '.customThemeFile = "${cacheDir}/custom-theme.json"' settings.orig.json > settings.json
            fi