From de94afd09094caaf413cb1af69ca53ec61d393a8 Mon Sep 17 00:00:00 2001
From: Bas Nijholt <basnijholt@gmail.com>
Date: Fri, 20 Dec 2019 22:00:31 +0100
Subject: [PATCH] add --show-diff-on-failure to pre-commit (#30097)

This makes the traceback on a failing CI pipeline much more useful.
---
 azure-pipelines-ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/azure-pipelines-ci.yml b/azure-pipelines-ci.yml
index 78de90c8552..546b63950fe 100644
--- a/azure-pipelines-ci.yml
+++ b/azure-pipelines-ci.yml
@@ -54,7 +54,7 @@ stages:
       displayName: 'Run bandit'
     - script: |
         . venv/bin/activate
-        pre-commit run isort --all-files
+        pre-commit run isort --all-files --show-diff-on-failure
       displayName: 'Run isort'
     - script: |
         . venv/bin/activate
@@ -97,7 +97,7 @@ stages:
           pre-commit install-hooks --config .pre-commit-config-all.yaml
     - script: |
         . venv/bin/activate
-        pre-commit run black --all-files
+        pre-commit run black --all-files --show-diff-on-failure
       displayName: 'Check Black formatting'
 
 - stage: 'Tests'