From 75ea19237c67f02419115c52c4907937f92a9e90 Mon Sep 17 00:00:00 2001
From: komagata <komagata@gmail.com>
Date: Fri, 12 Nov 2021 17:22:58 +0900
Subject: [PATCH] =?UTF-8?q?=E3=83=87=E3=83=95=E3=82=A9=E3=83=AB=E3=83=88?=
 =?UTF-8?q?=E3=81=A7=E3=81=AFrack-mini-profiler=E3=82=92disable=E3=81=AB?=
 =?UTF-8?q?=E3=81=97=E3=81=9F?=
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---
 README.md                                 | 7 +++++++
 config/initializers/rack-mini-profiler.rb | 5 +++++
 2 files changed, 12 insertions(+)
 create mode 100644 config/initializers/rack-mini-profiler.rb

diff --git a/README.md b/README.md
index 1ac43e9165d..3bcab59678d 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,13 @@ $ eslint 'app/javascript/**/*.{js,vue}' --fix
 $ prettier app/javascript/**/*.{js,vue} --write
 ```
 
+## Profiler
+
+rack-mini-profilerによりプロファイリングはデフォルトではOFFになっています。ONにする場合は下記のようにサーバーと立ち上げます。
+
+```
+$ PROFILE=1 rails server
+```
 
 ## その他
 
diff --git a/config/initializers/rack-mini-profiler.rb b/config/initializers/rack-mini-profiler.rb
new file mode 100644
index 00000000000..e24f53e5fa8
--- /dev/null
+++ b/config/initializers/rack-mini-profiler.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+if defined?(Rack::MiniProfiler)
+  Rack::MiniProfiler.config.auto_inject = !!ENV['PROFILE']
+end