reenable drat

.travis.yml

@@ -1,3 +1,8 @@
 language: r
 sudo: false
 cache: packages
+r_packages:
+- drat
+after_success:
+- test $TRAVIS_PULL_REQUEST == "false" && test $TRAVIS_BRANCH == "master" && bash drat.sh
+

drat.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+set -o errexit -o nounset
+addToDrat(){
+  mkdir drat; cd drat
+
+  ## Set up Repo parameters
+  git init
+  git config --global push.default simple
+
+  ## Get drat repo
+  git remote add upstream "https://$ghPat@github.com/cloudyr/cloudyr.github.io.git"
+  git fetch upstream
+  git checkout master
+
+  Rscript -e "drat::insertPackage('../$PKG_TARBALL', repodir = './drat')"
+  git add --all
+  git commit -m "add $PKG_TARBALL (build $TRAVIS_BUILD_ID)"
+  git push
+
+}
+addToDrat