Fixes errors on command output

The error occurs when the command output stream contains an invalid
UTF-8 character, or ends with a multi-bytes UTF-8 character.

Fixes #8110

.changes/fix-cmd-output-error.md

@@ -0,0 +1,7 @@
+---
+"@tauri-apps/cli": patch:bug
+"tauri-cli": patch:bug
+"tauri-bundler": patch:bug
+---
+
+Fixes errors on command output, occuring when the output stream contains an invalid UTF-8 character, or ends with a multi-bytes UTF-8 character.

tooling/bundler/src/bundle/common.rs

@@ -169,10 +169,12 @@ impl CommandExt for Command {
       let mut lines = stdout_lines_.lock().unwrap();
       loop {
         line.clear();
-        if let Ok(0) = stdout.read_line(&mut line) {
-          break;
+        match stdout.read_line(&mut line) {
+          Ok(0) => break,
+          Err(_) => continue,
+          _ => (),
         }
-        debug!(action = "stdout"; "{}", &line[0..line.len() - 1]);
+        debug!(action = "stdout"; "{}", line.trim_end());
         lines.extend(line.as_bytes().to_vec());
       }
     });
@@ -185,10 +187,12 @@ impl CommandExt for Command {
       let mut lines = stderr_lines_.lock().unwrap();
       loop {
         line.clear();
-        if let Ok(0) = stderr.read_line(&mut line) {
-          break;
+        match stderr.read_line(&mut line) {
+          Ok(0) => break,
+          Err(_) => continue,
+          _ => (),
         }
-        debug!(action = "stderr"; "{}", &line[0..line.len() - 1]);
+        debug!(action = "stderr"; "{}", line.trim_end());
         lines.extend(line.as_bytes().to_vec());
       }
     });

tooling/cli/src/lib.rs

@@ -231,10 +231,12 @@ impl CommandExt for Command {
       let mut lines = stdout_lines_.lock().unwrap();
       loop {
         line.clear();
-        if let Ok(0) = stdout.read_line(&mut line) {
-          break;
+        match stdout.read_line(&mut line) {
+          Ok(0) => break,
+          Err(_) => continue,
+          _ => (),
         }
-        debug!(action = "stdout"; "{}", &line[0..line.len() - 1]);
+        debug!(action = "stdout"; "{}", line.trim_end());
         lines.extend(line.as_bytes().to_vec());
       }
     });
@@ -247,10 +249,12 @@ impl CommandExt for Command {
       let mut lines = stderr_lines_.lock().unwrap();
       loop {
         line.clear();
-        if let Ok(0) = stderr.read_line(&mut line) {
-          break;
+        match stderr.read_line(&mut line) {
+          Ok(0) => break,
+          Err(_) => continue,
+          _ => (),
         }
-        debug!(action = "stderr"; "{}", &line[0..line.len() - 1]);
+        debug!(action = "stderr"; "{}", line.trim_end());
         lines.extend(line.as_bytes().to_vec());
       }
     });