From acf9f046aeedc09dde9fb8824ece197b80d8b53b Mon Sep 17 00:00:00 2001
From: Noritada Kobayashi <noritada.kobayashi@gmail.com>
Date: Wed, 31 Jul 2024 23:41:11 +0900
Subject: [PATCH] examples: show progress in output of a script

---
 examples/check_decoding_of_files.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/examples/check_decoding_of_files.rs b/examples/check_decoding_of_files.rs
index 402ac1a..bbfed04 100644
--- a/examples/check_decoding_of_files.rs
+++ b/examples/check_decoding_of_files.rs
@@ -40,8 +40,12 @@ where
         return Err("empty GRIB2 data".into());
     }
 
-    for (_index, submessage) in grib.iter() {
-        eprintln!("  {}.{}", &_index.0, &_index.1);
+    let len = grib.len();
+    for (index, (message_index, submessage)) in grib.iter().enumerate() {
+        eprintln!(
+            "  {}.{} ({}/{})",
+            &message_index.0, &message_index.1, index, len
+        );
         let decoder = grib::Grib2SubmessageDecoder::from(submessage)?;
         let _values = decoder.dispatch()?.collect::<Vec<_>>();
     }