add .travis.yml

Yue-Jiang · Yue-Jiang · commit 5f0a7f2d75a3 · 2019-09-04T21:02:32.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -0,0 +1,14 @@
+# R for travis: see documentation at https://docs.travis-ci.com/user/languages/r
+
+language: r
+r:
+  - release
+  - devel
+sudo: false
+cache: packages
+
+r_packages:
+  - covr
+
+after_success:
+  - Rscript -e 'library(covr); codecov()'
