Updating to native R support in Travis CI

.travis.yml

@@ -1,43 +1,14 @@
-## .travis.yml file for use with metacran/r-builder
-## See https://github.com/metacran/r-builder for details.
+## .travis.yml file for use with native R support in Travis CI
+## See https://docs.travis-ci.com/user/languages/r/ for details.
 
-language: c
+language: r
+r: bioc-devel
+cache: packages
 
-sudo: required
-
-before_install:
-  - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
-  - sudo apt-get update -qq
-  - sudo apt-get install -qq libyajl-dev libxml2-dev libxqilla-dev libstdc++-4.8-dev
-  - sudo apt-get install -qq g++-4.8
-  - export CXX="g++-4.8" 
-  - export CC="gcc-4.8"
-  - curl -OL https://raw.githubusercontent.com/metacran/r-builder/master/pkg-build.sh
-  - chmod 755 pkg-build.sh
-  - ./pkg-build.sh bootstrap
-
-install:
-  - ./pkg-build.sh install_bioc_deps
-  - ./pkg-build.sh install_github jimhester/covr
-
-script:
-   - ./pkg-build.sh run_tests
-
-after_success:
-  - ./pkg-build.sh run_script -e 'covr::codecov()'
-
-after_failure:
-  - ./pkg-build.sh dump_logs
+sudo: false
 
 notifications:
   email:
     on_success: change
     on_failure: change
 
-env:
-  global:
-    - BOOTSTRAP_LATEX=true # Required to build pdf vignettes (+ manual); slower
-    - R_CHECK_ARGS="--no-vignettes --timings" # Mimic BioC build machines
-  matrix:
-    - RVERSION=devel # BioC 3.3 uses R 3.3.x (R-devel at the time of writing).
-                     # This needs to be manually updated upon new BioC version.