Print errors properly on CLI args parse failure (#86)

Author: GoldsteinE

crates/arborium-cli/src/main.rs

@@ -33,7 +33,11 @@ struct Args {
 
 fn main() {
     let args: Args = facet_args::from_std_args().unwrap_or_else(|e| {
-        eprintln!("Error: {:?}", e);
+        if let Some(text) = e.help_text() {
+            eprintln!("{text}");
+        } else {
+            eprintln!("{:?}", miette::Report::new(e));
+        }
         std::process::exit(1);
     });
 

xtask/src/generate.rs

@@ -2666,6 +2666,7 @@ all-languages = [
 arborium = {{ version = "{version}", path = "../arborium" }}
 facet = "0.33.0"
 facet-args = "0.33.0"
+miette = {{ version = "7.6.0", features = ["fancy-no-backtrace"] }}
 "#
     ));