update .travis.yml

.travis.yml

@@ -1,6 +1,6 @@
 language: go
 go:
-  - 1.7.3
+  - 1.8.1
 
 # Don't want default ./... here:
 install:
@@ -11,23 +11,9 @@ install:
 # (1) Fetch dependencies for us to run the tests in test/examples_test.go
 - go get -t -v k8s.io/kubernetes.github.io/test
 
-# The dependencies are complicated for test/examples_test.go
+# Simplified deduplication of dependencies.
-# k8s.io/kubernetes/pkg is a dependency, which in turn depends on apimachinery
+- cp -L -R $GOPATH/src/k8s.io/kubernetes/vendor/ $GOPATH/src/
-# but we also have apimachinery directly as one of our dependencies, which causes a conflict.
+- rm -r $GOPATH/src/k8s.io/kubernetes/vendor/
-# Additionally, we get symlinks when we clone the directory. The below steps do the following:
-
-# (a) Replace the symlink with the actual dependencies from kubernetes/staging/src/
-# (b) copy all the vendored files to $GOPATH/src
-- rm $GOPATH/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery
-- rm $GOPATH/src/k8s.io/kubernetes/vendor/k8s.io/apiserver
-- rm $GOPATH/src/k8s.io/kubernetes/vendor/k8s.io/client-go
-- rm $GOPATH/src/k8s.io/kubernetes/vendor/k8s.io/sample-apiserver
-- rm $GOPATH/src/k8s.io/kubernetes/vendor/k8s.io/kube-aggregator
-- cp -r $GOPATH/src/k8s.io/kubernetes/vendor/* $GOPATH/src/
-- rm -rf $GOPATH/src/k8s.io/kubernetes/vendor/*
-- cp -r $GOPATH/src/k8s.io/kubernetes/staging/src/* $GOPATH/src/
-- cp -r $GOPATH/src/k8s.io/apimachinery/vendor/* $GOPATH/src/
-- rm -rf $GOPATH/src/k8s.io/apimachinery/vendor/*
 
 # (2) Fetch md-check along with all its dependencies.
 - git clone --depth=50 --branch=master https://github.com/kubernetes/md-check $HOME/gopath/src/k8s.io/md-check