From bc7e5c949fa14da0a0174354a83567303bafb648 Mon Sep 17 00:00:00 2001
From: Anthony Sottile <asottile@umich.edu>
Date: Fri, 18 Jan 2019 12:52:56 -0800
Subject: [PATCH] Turn off pre-commit's automatic parallelization for black
 (#675)

black internally uses multiprocessing for speed.  In pre-commit 1.13.0 this is automated by the framework itself however if both pre-commit and black are forking processes this is slower and hits race-conditions in `black`.
---
 .pre-commit-hooks.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.pre-commit-hooks.yaml b/.pre-commit-hooks.yaml
index 0d43112..c8a8ff0 100644
--- a/.pre-commit-hooks.yaml
+++ b/.pre-commit-hooks.yaml
@@ -4,4 +4,5 @@
     entry: black
     language: python
     language_version: python3
+    require_serial: true
     types: [python]
-- 
2.39.5