Set RGL_USE_NULL to avoid rgl install errors (#333)

jefferis · gaborcsardi · commit c462fb79659c · 2019-04-08T09:07:56.000+01:00
* Set RGL_USE_NULL to avoid rgl install errors * fixes an issue when installing packages depending on rgl in a headless environment (e.g. remote server such as travis) * closes #332
diff --git a/NEWS.md b/NEWS.md
@@ -38,6 +38,10 @@
   repo owner and repo correctly (included in the error message), and that 
   they have the required permissions to access the repository.
 
+* `install_*` fuctions (via the underlying private `install` function) now set
+  `RGL_USE_NULL="TRUE"` in order to avoid errors when running headless
+  and installing any package using `rgl` (@jefferis, ##333)
+  
 # remotes 2.0.2
 
 * `install_deps()` now installs un-installed remotes packages even when
diff --git a/R/install.R b/R/install.R
@@ -57,7 +57,8 @@ safe_install_packages <- function(...) {
   with_envvar(
     c(R_LIBS = lib,
       R_LIBS_USER = lib,
-      R_LIBS_SITE = lib),
+      R_LIBS_SITE = lib,
+      RGL_USE_NULL = "TRUE"),
 
     # Set options(warn = 2) for this process and child processes, so that
     # warnings from `install.packages()` are converted to errors.
