1 files changed, 12 insertions, 0 deletions
diff --git a/locale/tools/src/main.rs b/locale/tools/src/main.rs
index 1082581e..68805b99 100644
--- a/locale/tools/src/main.rs
+++ b/locale/tools/src/main.rs
@@ -26,6 +26,8 @@ enum Args {
     ExportPo {
         #[arg(long)]
         remap_ids: Option<PathBuf>,
+        #[arg(long)]
+        fallback: Option<PathBuf>,
         input: PathBuf,
         output: PathBuf,
     },
@@ -55,9 +57,19 @@ fn main() -> Result<()> {
             remap_ids: id_map,
             input,
             output,
+            fallback,
         } => {
             let mut ini = load_ini(&input)?;
             let id_map = id_map.map(|path| load_ini(&path)).transpose()?;
+            if let Some(fallback) = fallback {
+                let f = load_ini(&fallback)?;
+                for (k, v) in f {
+                    if !ini.contains_key(&k) {
+                        eprintln!("fallback: key {k:?} is missing");
+                        ini.insert(k, v);
+                    }
+                }
+            }
 
             for &(code, name) in NATIVE_LANGUAGE_NAMES {
                 ini.insert(format!("c.settings.ui.language.{code}"), name.to_owned());