From 28a41cde27974983b2686b634efccd487b8b0897 Mon Sep 17 00:00:00 2001
From: Johan Brandhorst <johan.brandhorst@gmail.com>
Date: Sat, 9 May 2020 13:46:04 +0100
Subject: [PATCH] Add bazel CI caching

---
 .circleci/config.yml | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 3992b28143c..af230099aac 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -97,11 +97,15 @@ jobs:
     working_directory: /src/grpc-gateway
     steps:
       - checkout
+      - restore_cache:
+          keys:
+            - v2-bazel-cache-{{ checksum "repositories.bzl" }}
+            - v2-bazel-cache-
       - run:
           name: Create Bazel config file (.bazelrc)
           command: |
             cat > .bazelrc << EOF
-            startup --output_base $HOME/.cache/_grpc_gateway_bazel
+            startup --output_base /root/.cache/_grpc_gateway_bazel
             build --test_output errors
             build --features race
             # Workaround https://github.com/bazelbuild/bazel/issues/3645
@@ -120,6 +124,10 @@ jobs:
           command: 'bazel run //:buildifier_check ||
             (echo "ERROR: Bazel files not formatted, please run \`bazel run :buildifier\`" >&2; exit 1)'
           when: always
+      - save_cache:
+          key: v2-bazel-cache-{{ checksum "repositories.bzl" }}
+          paths:
+            - /root/.cache/_grpc_gateway_bazel
   gorelease:
     environment:
     ## Split key to avoid github revoking it