From 80ff5230cdc8a753f5342eb602f665880d257ad9 Mon Sep 17 00:00:00 2001
From: Mostafa Abdelrahman <mostafamohamad@hotmail.com>
Date: Wed, 9 Mar 2022 17:24:12 +0200
Subject: [PATCH] Improve CLI error messages associated with opening train/test
 file

---
 crates/cli/main.rs   | 2 +-
 crates/table/load.rs | 6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/crates/cli/main.rs b/crates/cli/main.rs
index fc74b41f..8cc881b5 100644
--- a/crates/cli/main.rs
+++ b/crates/cli/main.rs
@@ -178,7 +178,7 @@ fn main() {
 		Subcommand::Serve(args) => self::serve::serve(*args),
 	};
 	if let Err(error) = result {
-		eprintln!("{}: {}", "error".red().bold(), error);
+		eprintln!("{}: {:#}", "error".red().bold(), error);
 		std::process::exit(1);
 	}
 }
diff --git a/crates/table/load.rs b/crates/table/load.rs
index 46e95001..5f312858 100644
--- a/crates/table/load.rs
+++ b/crates/table/load.rs
@@ -1,5 +1,5 @@
 use super::*;
-use anyhow::Result;
+use anyhow::{Context, Result};
 use std::{
 	collections::{BTreeMap, BTreeSet},
 	path::Path,
@@ -71,7 +71,9 @@ impl Table {
 		options: FromCsvOptions,
 		handle_progress_event: &mut impl FnMut(LoadProgressEvent),
 	) -> Result<Table> {
-		let len = std::fs::metadata(path)?.len();
+		let len = std::fs::metadata(path)
+			.with_context(|| format!("Unable to open the input file \"{}\"", path.display()))?
+			.len();
 		Table::from_csv(
 			&mut csv::Reader::from_path(path)?,
 			len,