From bb93abf5ca24cf3d24159fed0532871b055e5ffe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=A9ctor=20Ramos?= <hramos@fb.com>
Date: Mon, 29 Oct 2018 08:44:02 -0700
Subject: [PATCH] Fix checkout_code: Remove Metro cache check (#21998)

Summary:
This was a specific check that was prone to break at some point. That time has come. Removing it as it is not providing any useful signal.
Pull Request resolved: https://github.com/facebook/react-native/pull/21998

Differential Revision: D12823839

Pulled By: hramos

fbshipit-source-id: e870670d7803af78c4559052613ea364ce1478df
---
 .circleci/config.yml            |  1 -
 scripts/circleci/check_cache.sh | 30 ------------------------------
 2 files changed, 31 deletions(-)
 delete mode 100755 scripts/circleci/check_cache.sh

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 7f94a6138c8..89fe32f77d4 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -197,7 +197,6 @@ aliases:
     name: Sanity checks
     command: |
       ./scripts/circleci/check_license.sh
-      ./scripts/circleci/check_cache.sh
       ./scripts/circleci/validate_yarn_lockfile.sh
     when: always
 
diff --git a/scripts/circleci/check_cache.sh b/scripts/circleci/check_cache.sh
deleted file mode 100755
index a0378b4005c..00000000000
--- a/scripts/circleci/check_cache.sh
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/bin/bash
-# Copyright (c) Facebook, Inc. and its affiliates.
-#
-# This source code is licensed under the MIT license found in the
-# LICENSE file in the root directory of this source tree.
-
-set -e
-
-# Make sure we don't accidentally restore a cache that contains the Metro
-# filename issue that was fixed in Metro 0.25, originally introduced in
-# D6752278. Once fixed, this was causing sporadic failures in the iOS
-# and tvOS workflows as the issue persisted in the cached node_modules
-#
-# The filename issue can be summarized as follows:
-# A version of Metro was published to npm with HmrClient.js and
-# HmrClient.js.flow files, while the repo contains HMRClient.js and
-# HMRClient.js.flow. This was due to a case issue in the publisher's
-# host machine.
-# The issue this is checking for is manifested by the presence of all
-# of the following files: HmrClient.js, HMRClient.js, HmrClient.js.flow,
-# HMRClient.js.flow.
-
-EXPECTED='1'
-ACTUAL=$(ls node_modules/metro/src/lib/bundle-modules/*.js | xargs | awk '{print tolower($0)}' | tr ' ' '\n' | grep hmrclient.js | wc -l | tr -d '[:space:]')
-
-if [ "$EXPECTED" != "$ACTUAL" ]; then
-  echo "HmrClient.js crept into the cache?"
-  echo $(ls node_modules/metro/src/lib/bundle-modules/H*lient.js)
-  exit 1
-fi