Travis CI: More strict checking

Author: HenrikBengtsson

.travis.yml

@@ -1,6 +1,11 @@
 #----------------------------------------------------------------
-# Travis-CI Configuration for R Packages
-# https://docs.travis-ci.com/user/languages/r
+# Travis-CI configuration for R packages
+#
+# REFERENCES:
+# * Travis CI: https://docs.travis-ci.com/user/languages/r
+# * covr: https://github.com/jimhester/covr
+#
+# YAML validated using http://www.yamllint.com/
 #----------------------------------------------------------------
 language: r
 sudo: false
@@ -22,9 +27,12 @@ matrix:
     - os: linux
       r: devel
       env:
-      - R_KEEP_PKG_SOURCE=yes
-      - _R_S3_METHOD_LOOKUP_BASEENV_AFTER_GLOBALENV_=true
-      - _R_S3_METHOD_LOOKUP_USE_TOPENV_AS_DEFENV_=true
+        - R_KEEP_PKG_SOURCE=yes
+        - _R_S3_METHOD_LOOKUP_BASEENV_AFTER_GLOBALENV_=true
+        - _R_S3_METHOD_LOOKUP_USE_TOPENV_AS_DEFENV_=true
+        - _R_CHECK_CONNECTIONS_LEFT_OPEN_=true
+        - _R_CHECK_LENGTH_1_CONDITION_=true
+        - _R_CHECK_LENGTH_1_LOGIC2_=true
     - os: linux
       r: devel
       r_github_packages:
@@ -33,9 +41,6 @@ matrix:
         - NB='w/ batchtools devel'  ## Just a label
     - os: osx
       r: oldrel
-      before_install:
-        - Rscript -e 'c(physical = parallel::detectCores(logical = FALSE), logical = parallel::detectCores())'
-        - Rscript -e 'install.packages(c("future", "future.apply"), type = "source")'
     - os: osx
       r: release
     - os: linux
@@ -46,14 +51,6 @@ matrix:
       after_success:
         - Rscript -e 'covr::codecov(quiet=FALSE)'
       env: NB='w/ covr' ## Just a label
-    - os: linux
-      r: release
-      r_packages:
-        - lintr
-      r_check_args: --no-codoc --no-examples --no-tests --ignore-vignettes
-      after_success:
-        - Rscript -e 'library(lintr); lint_package(linters = with_defaults(commented_code_linter = NULL, closed_curly_linter = closed_curly_linter(allow_single_line = TRUE), open_curly_linter = open_curly_linter(allow_single_line = TRUE)))'
-      env: NB='w/ lintr' ## Just a label
 
 before_install:
   - Rscript -e 'c(physical = parallel::detectCores(logical = FALSE), logical = parallel::detectCores())'