Merge pull request #410 from pulumi/yarn-cache

Fix Yarn errors during build

.travis.yml

@@ -19,7 +19,7 @@ before_install:
     # Node.js 6.10.2 for all JavaScript code (to match AWS Lambda).
     - nvm install v6.10.2
     # Install Yarn as per https://yarnpkg.com/lang/en/docs/install-ci/#travis-tab.
-    - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 0.24.6
+    - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.2.1
     - export PATH=$HOME/.yarn/bin:$PATH
     # Install the AWS CLI so that we can publish the resulting release (if applicable) at the end.
     - pip install --upgrade --user awscli

Makefile

@@ -3,7 +3,9 @@ SHELL=/bin/bash
 
 PROJECT=github.com/pulumi/pulumi
 PROJECT_PKGS=$(shell go list ./cmd/... ./pkg/... | grep -v /vendor/)
-TESTPARALLELISM=10
+
+# Integration tests run Yarn, and Yarn may fail if invoked concurrently.
+TESTPARALLELISM=1
 
 ECHO=echo -e
 GOMETALINTERBIN=gometalinter

build.proj

@@ -7,7 +7,7 @@
     <NativeRuntimeModuleDirectory>$(NodeJSSdkDirectory)\runtime\native\</NativeRuntimeModuleDirectory>
     <NodeVersion>6.10.2</NodeVersion>
     <NodeArch>x64</NodeArch>
-    <TestParallelism>10</TestParallelism>
+    <TestParallelism>1</TestParallelism>
   </PropertyGroup>
  
   <Target Name="EnsureGoDependencies">