backport .travis.yml

Author: yutannihilation

.travis.yml

@@ -7,9 +7,17 @@ dist: trusty
 matrix:
   include:
   - r: devel
+    # avoind errors due to world clock API (hopefully can be removed in future)
+    env: _R_CHECK_SYSTEM_CLOCK_=false
   - r: release
-    env: USE_VDIFFR=true
-    r_github_packages: lionel-/vdiffr
+    env: VDIFFR_RUN_TESTS=true
+    before_cache:
+    - Rscript -e 'remotes::install_cran("pkgdown")'
+    - Rscript -e 'remotes::install_github("tidyverse/tidytemplate")'
+    deploy:
+      provider: script
+      script: Rscript -e 'pkgdown::deploy_site_github(verbose = TRUE)'
+      skip_cleanup: true
   - r: oldrel
   - r: 3.2
     env: R_REMOTES_NO_ERRORS_FROM_WARNINGS=true
@@ -22,7 +30,7 @@ env:
   # don't treat missing suggested packages as error
   - _R_CHECK_FORCE_SUGGESTS_=false
   # switch off vdiffr by default
-  - USE_VDIFFR=false
+  - VDIFFR_RUN_TESTS=false
 
 after_success:
   - Rscript -e 'covr::codecov()'