fix: Suppress subprocess traceback in case XONSH_SHOW_TRACEBACK=False and $RAISE_SUBPROC_ERROR=True (#5066)

* fix: Add and extra condition for print traceback from subprocess

* add news

* Apply pre-commit hooks

* Fix initial implementation using sys.exit

* Update pr-5066.rst

* Remove sys.exit

---------

Co-authored-by: Andy Kipp <anki-code@users.noreply.github.com>

news/pr-5066.rst

@@ -0,0 +1,23 @@
+**Added:**
+
+* <news item>
+
+**Changed:**
+
+* <news item>
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* Suppress subprocess traceback on exception in case ``$XONSH_SHOW_TRACEBACK=False`` with ``$RAISE_SUBPROC_ERROR=True``.
+
+**Security:**
+
+* <news item>

xonsh/main.py

@@ -558,6 +558,7 @@ def main_xonsh(args):
             if err_type is SystemExit:
                 raise err
             else:
+                if XSH.env.get("XONSH_SHOW_TRACEBACK"):
                     traceback.print_exception(*exc_info)
                 exit_code = 1
         events.on_exit.fire()

xonsh/procs/pipelines.py

@@ -594,7 +594,10 @@ class CommandPipeline:
         """Raises a subprocess error, if we are supposed to."""
         spec = self.spec
         rtn = self.returncode
-        if rtn is not None and rtn != 0 and XSH.env.get("RAISE_SUBPROC_ERROR"):
+
+        if rtn is None or rtn == 0 or not XSH.env.get("RAISE_SUBPROC_ERROR"):
+            return
+
         try:
             raise subprocess.CalledProcessError(rtn, spec.args, output=self.output)
         finally: