From c4132b501b0e81563ab60083260ad5ff19d8a188 Mon Sep 17 00:00:00 2001
From: Simon Mo <xmo@berkeley.edu>
Date: Thu, 21 Nov 2019 11:36:36 -0800
Subject: [PATCH] [CI] Add Remote Caching (#6210)

---
 .travis.yml                               |   2 +-
 ci/travis/bazel_cache_credential.json.enc | Bin 0 -> 2352 bytes
 ci/travis/install-bazel.sh                |  15 +++++++++++++++
 3 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 ci/travis/bazel_cache_credential.json.enc

diff --git a/.travis.yml b/.travis.yml
index 8409da713..5e8fc29a0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -116,7 +116,7 @@ matrix:
         # For the linux wheel build, we use a shared cache between all
         # wheels, but not between different travis runs, because that
         # caused timeouts in the past. See the "cache: false" line below.
-        - export MOUNT_BAZEL_CACHE="-v $HOME/ray-bazel-cache:/root/ray-bazel-cache -e TRAVIS=true"
+        - export MOUNT_BAZEL_CACHE="-v $HOME/ray-bazel-cache:/root/ray-bazel-cache -e TRAVIS=true -e TRAVIS_PULL_REQUEST=$TRAVIS_PULL_REQUEST"
 
         # This command should be kept in sync with ray/python/README-building-wheels.md,
         # except the `$MOUNT_BAZEL_CACHE` part.
diff --git a/ci/travis/bazel_cache_credential.json.enc b/ci/travis/bazel_cache_credential.json.enc
new file mode 100644
index 0000000000000000000000000000000000000000..ede884d9d9ed1daa5d4c6a0d25e8806db0f258c3
GIT binary patch
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diff --git a/ci/travis/install-bazel.sh b/ci/travis/install-bazel.sh
index 0627bae6c..645d1c9e5 100755
--- a/ci/travis/install-bazel.sh
+++ b/ci/travis/install-bazel.sh
@@ -3,6 +3,8 @@
 # Cause the script to exit if a single command fails
 set -e
 
+ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)
+
 platform="unknown"
 unamestr="$(uname)"
 if [[ "$unamestr" == "Linux" ]]; then
@@ -26,4 +28,17 @@ if [[ "$TRAVIS" == "true"  ]]; then
   # Use bazel disk cache if this script is running in Travis.
   mkdir -p $HOME/ray-bazel-cache
   echo "build --disk_cache=$HOME/ray-bazel-cache" >> $HOME/.bazelrc
+
+  # Use ray google cloud cache
+  echo "build --remote_cache=https://storage.googleapis.com/ray-bazel-cache" >> $HOME/.bazelrc
+  if [[ "$TRAVIS_PULL_REQUEST" == "false" ]]; then
+    # If we are in master build, we can write to the cache as well.
+    openssl aes-256-cbc -K $encrypted_1c30b31fe1ee_key \
+      -iv $encrypted_1c30b31fe1ee_iv \
+      -in $ROOT_DIR/bazel_cache_credential.json.enc \
+      -out $HOME/bazel_cache_credential.json -d
+    echo "build --google_credentials=$HOME/bazel_cache_credential.json" >> $HOME/.bazelrc
+  else
+    echo "build --remote_upload_local_results=false" >> $HOME/.bazelrc
+  fi
 fi