From 65948b00b4aa1411491096d0a429c67df01acdea Mon Sep 17 00:00:00 2001
From: Colin Rofls <colin@cmyr.net>
Date: Wed, 23 Aug 2023 11:01:16 -0400
Subject: [PATCH] Manually catch & print errors in main()

This lets us ensure that we see the Display impls intead of the Debug
impls, which are generally less useful.
---
 fontc/src/main.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/fontc/src/main.rs b/fontc/src/main.rs
index 9f88be8b..a28e69c0 100644
--- a/fontc/src/main.rs
+++ b/fontc/src/main.rs
@@ -6,7 +6,16 @@ use fontbe::orchestration::Context as BeContext;
 use fontc::{init_paths, write_font_file, Args, ChangeDetector, Config, Error};
 use fontir::orchestration::Context as FeContext;
 
-fn main() -> Result<(), Error> {
+fn main() {
+    // catch and print errors manually, to avoid just seeing the Debug impls
+    if let Err(e) = run() {
+        // we have a CI check that forbids eprintln, but we're very clever, so
+        let _ = writeln!(std::io::stderr(), "{e}");
+        std::process::exit(1);
+    }
+}
+
+fn run() -> Result<(), Error> {
     env_logger::builder()
         .format(|buf, record| {
             let ts = buf.timestamp_micros();