From ef6cc38b32529c0504dc0d8aae31b63aab138a56 Mon Sep 17 00:00:00 2001
From: ib <32579486+ErrWare@users.noreply.github.com>
Date: Wed, 19 Feb 2025 13:02:42 -0600
Subject: [PATCH] Clarify server's cache-not-found message.

The new typical use case looks like this:

```
./liblisa-semantics-tool server --cache mycache.cache semantics/amd-7700x.json
Creating cache "mycache.cache"
Reading...
Building lookup table...
That took 112565ms
Ready!
```
---
 cli/liblisa-semantics-tool/src/server.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/cli/liblisa-semantics-tool/src/server.rs b/cli/liblisa-semantics-tool/src/server.rs
index 3a79b2c..8435cdf 100644
--- a/cli/liblisa-semantics-tool/src/server.rs
+++ b/cli/liblisa-semantics-tool/src/server.rs
@@ -1,6 +1,6 @@
 use std::fmt::{Debug, Display};
 use std::fs::File;
-use std::io::{BufReader, BufWriter};
+use std::io::{BufReader, BufWriter, ErrorKind};
 use std::path::{Path, PathBuf};
 use std::str::FromStr;
 use std::time::Instant;
@@ -247,11 +247,13 @@ impl Server {
                     bincode::deserialize_from(BufReader::new(file)).unwrap()
                 },
                 Err(e) => {
-                    eprintln!("Error reading {cache:?}: {e}");
+                    match e.kind() {
+                        ErrorKind::NotFound => eprintln!("Creating cache {cache:?}"),
+                        _ => eprintln!("Error reading {cache:?}: {e}"),
+                    } 
 
                     let map = build_filter_map(&self.encodings);
 
-                    eprintln!("Writing cache to {cache:?}");
                     bincode::serialize_into(BufWriter::new(File::create(cache).unwrap()), &map).unwrap();
                     map
                 },