Merge pull request #414 from dmurdoch/release1.3

Release1.3 fix

DESCRIPTION

@@ -1,5 +1,5 @@
 Package: rgl
-Version: 1.3.0
+Version: 1.3.1
 Title: 3D Visualization Using OpenGL
 Authors@R: c(person("Duncan", "Murdoch", role = c("aut", "cre"),
                      email = "[email protected]"),

cran-comments.md

@@ -1,3 +1,10 @@
+# 1.3.1
+
+This adds a workaround to a bug in the interaction of the
+`markdown` and `knitr` packages that caused the vignettes
+to attempt to produce snapshots if Pandoc was not available,
+even though Pandoc is not needed.
+
 # 1.3.0
 
 This small release is at the request of Tomas to adapt to

vignettes/setup.R

@@ -8,6 +8,12 @@ if (!requireNamespace("rmarkdown", quietly = TRUE)) {
   knitr::knit_exit()
 }
 
+# If Pandoc is not installed, the output format won't be set
+# knitr needs this; see https://github.com/rstudio/markdown/issues/115
+if (is.null(knitr::opts_knit$get("rmarkdown.output.format"))){
+  knitr::opts_knit$set(rmarkdown.pandoc.to = "html")
+}
+
 # knitr::opts_chunk$set(snapshot = TRUE)  # for snapshots instead of dynamic
 
 documentedfns <- c()