Warn when Zopfli --ziwi exceeds --zi (#812)

2026-04-20 04:48:32 +02:00 · 2026-04-20 04:48:32 +02:00 · e167b04b85
commit e167b04b85
parent fbae35922d
1 changed files with 10 additions and 0 deletions
--- a/src/main.rs
+++ b/src/main.rs
@ -430,6 +430,16 @@ fn parse_opts_into_struct(
        let iterations_without_improvement = *matches
            .get_one::<NonZeroU64>("iterations-without-improvement")
            .unwrap_or(&NonZeroU64::MAX);
+
+        if iterations_without_improvement > iteration_count
+            && iterations_without_improvement != NonZeroU64::MAX
+        {
+            warn!(
+                "--ziwi ({}) is higher than --zi ({}) and will never be reached.",
+                iterations_without_improvement, iteration_count
+            );
+        }
+
        opts.deflater = Deflater::Zopfli(ZopfliOptions {
            iteration_count,
            iterations_without_improvement,