From 5f1afd89eef493eb823502f6fd52f7b4254e8266 Mon Sep 17 00:00:00 2001
From: jpic <jpic@yourlabs.org>
Date: Fri, 28 Aug 2020 18:56:28 +0200
Subject: [PATCH] Prevent print traceback for failed commands

---
 shlax/cli.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/shlax/cli.py b/shlax/cli.py
index 487ab88..13a6926 100644
--- a/shlax/cli.py
+++ b/shlax/cli.py
@@ -13,6 +13,8 @@ import importlib
 import os
 import sys
 
+from .proc import ProcFailure
+
 
 class Group(cli2.Group):
     def __init__(self, *args, **kwargs):
@@ -55,7 +57,12 @@ class Command(cli2.Command):
         return self.shlax_target(*args)
 
     def __call__(self, *argv):
-        super().__call__(*argv)
+        try:
+            super().__call__(*argv)
+        except ProcFailure:
+            # just output the failure without TB, as command was already
+            # printed anyway
+            pass
         self.shlax_target.output.results(self.shlax_target)