From b54801f967d03016c8bc72a7714d37bdd3a28b81 Mon Sep 17 00:00:00 2001
From: rossilor95 <rossilor95@outlook.it>
Date: Sat, 25 Apr 2026 15:24:17 +0200
Subject: [PATCH 1/3] du: propagate errors from --exclude-from instead of
 panicking

---
 src/uu/du/src/du.rs | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/src/uu/du/src/du.rs b/src/uu/du/src/du.rs
index 012517dc3eb..cf4ae5420ac 100644
--- a/src/uu/du/src/du.rs
+++ b/src/uu/du/src/du.rs
@@ -755,13 +755,11 @@ enum DuError {
 impl UError for DuError {}
 
 /// Read a file and return each line in a vector of String
-fn file_as_vec(filename: impl AsRef<Path>) -> Vec<String> {
-    let file = File::open(filename).expect("no such file");
+fn file_as_vec(filename: impl AsRef<Path>) -> UResult<Vec<String>> {
+    let file = File::open(filename)?;
     let buf = BufReader::new(file);
-
-    buf.lines()
-        .map(|l| l.expect("Could not parse line"))
-        .collect()
+    let lines = buf.lines().collect::<Result<Vec<String>, _>>()?;
+    Ok(lines)
 }
 
 /// Given the `--exclude-from` and/or `--exclude` arguments, returns the globset lists
@@ -770,7 +768,10 @@ fn build_exclude_patterns(matches: &ArgMatches) -> UResult<Vec<Pattern>> {
     let exclude_from_iterator = matches
         .get_many::<String>(options::EXCLUDE_FROM)
         .unwrap_or_default()
-        .flat_map(file_as_vec);
+        .map(file_as_vec)
+        .collect::<UResult<Vec<Vec<String>>>>()?
+        .into_iter()
+        .flatten();
 
     let excludes_iterator = matches
         .get_many::<String>(options::EXCLUDE)

From 44c4da995b40a0a3583b93b402e79ab9186509a4 Mon Sep 17 00:00:00 2001
From: rossilor95 <rossilor95@outlook.it>
Date: Sat, 25 Apr 2026 23:03:55 +0200
Subject: [PATCH 2/3] du: update test_du with --exclude-from failures

---
 tests/by-util/test_du.rs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tests/by-util/test_du.rs b/tests/by-util/test_du.rs
index 0adb1662703..d9df35da918 100644
--- a/tests/by-util/test_du.rs
+++ b/tests/by-util/test_du.rs
@@ -1518,6 +1518,23 @@ fn test_du_exclude_invalid_syntax() {
         .stderr_contains("du: Invalid exclude syntax");
 }
 
+#[test]
+fn test_du_exclude_from_nonexistent_file() {
+    new_ucmd!()
+        .arg("--exclude-from=nonexistent-file")
+        .fails()
+        .stderr_contains("du: No such file or directory");
+}
+
+#[cfg(all(target_os = "linux", not(target_env = "musl")))]
+#[test]
+fn test_du_exclude_from_read_error() {
+    new_ucmd!()
+        .arg("--exclude-from=/proc/self/mem")
+        .fails()
+        .stderr_contains("du: /proc/self/mem: Input/output error");
+}
+
 #[cfg(not(windows))]
 #[test]
 fn test_du_symlink_fail() {

From abfe85542aeb311cae8492b0b236de0b0c0353ba Mon Sep 17 00:00:00 2001
From: rossilor95 <rossilor95@outlook.it>
Date: Sun, 26 Apr 2026 13:51:14 +0200
Subject: [PATCH 3/3] du: fix expected stderr in exclude-from read-error test

---
 tests/by-util/test_du.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/by-util/test_du.rs b/tests/by-util/test_du.rs
index d9df35da918..fbb1761afe9 100644
--- a/tests/by-util/test_du.rs
+++ b/tests/by-util/test_du.rs
@@ -1532,7 +1532,7 @@ fn test_du_exclude_from_read_error() {
     new_ucmd!()
         .arg("--exclude-from=/proc/self/mem")
         .fails()
-        .stderr_contains("du: /proc/self/mem: Input/output error");
+        .stderr_contains("du: Input/output error");
 }
 
 #[cfg(not(windows))]