From 55d05357bb29217eb48e168492ce9822a293b011 Mon Sep 17 00:00:00 2001
From: David Gardiner <david@gardiner.net.au>
Date: Wed, 10 Jun 2020 10:28:03 +0930
Subject: [PATCH] Add Azure Pipelines Cache task

- Improves install performance for subsequent runs
---
 azure-pipelines.yaml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/azure-pipelines.yaml b/azure-pipelines.yaml
index 13f8e50..f51edf0 100644
--- a/azure-pipelines.yaml
+++ b/azure-pipelines.yaml
@@ -4,11 +4,23 @@ trigger:
 pool:
   vmImage: 'Ubuntu-16.04'
 
+variables:
+  BUNDLE_PATH: $(Pipeline.Workspace)/.bundle
+
 steps:
 - task: UseRubyVersion@0
   inputs:
     versionSpec: '=2.6.2'
 
+- task: Cache@2
+  inputs:
+    key: 'gems | "$(Agent.OS)" | Gemfile'
+    restoreKeys: | 
+      gems | "$(Agent.OS)"
+      gems
+    path: $(BUNDLE_PATH)
+  displayName: Cache gems
+
 - script: |
     gem install bundler
     bundle install --retry=3 --jobs=4