From 4416c3d51220846e9de9624735f6943744388bda Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabrice=20Flore-Th=C3=A9bault?= <ffloreth@redhat.com>
Date: Wed, 3 Jun 2020 18:04:13 +0200
Subject: [PATCH] add AttributeError again

---
 pre_commit/languages/docker.py | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/pre_commit/languages/docker.py b/pre_commit/languages/docker.py
index e3970f49..244c2341 100644
--- a/pre_commit/languages/docker.py
+++ b/pre_commit/languages/docker.py
@@ -78,15 +78,21 @@ def install_environment(
 
 
 def get_docker_user() -> Tuple[str, ...]:  # pragma: win32 no cover
-    output = subprocess.check_output(('docker', 'system', 'info'), text=True)
-    for line in output.splitlines():
-        # rootless docker has "rootless"
-        # rootless podman has "rootless: true"
-        if line.strip().startswith('rootless'):
-            if not 'false' in line:
-                return ()  # no -u for rootless
-            break
-    return ('-u', f'{os.getuid()}:{os.getgid()}')
+    try:
+        output = subprocess.check_output(
+            ('docker', 'system', 'info'),
+            text=True,
+        )
+        for line in output.splitlines():
+            # rootless docker has "rootless"
+            # rootless podman has "rootless: true"
+            if line.strip().startswith('rootless'):
+                if 'false' not in line:
+                    return ()  # no -u for rootless
+                break
+        return ('-u', f'{os.getuid()}:{os.getgid()}')
+    except AttributeError:
+        return ()
 
 
 def docker_cmd() -> Tuple[str, ...]:  # pragma: win32 no cover