add a message about TEXINPUT to prevent issues like #92

rstudio · Jan 11, 2019 · 7a1c2c6 · 7a1c2c6
1 parent d53fc1d
commit 7a1c2c6
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diff --git a/DESCRIPTION b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: tinytex
 Type: Package
 Title: Helper Functions to Install and Maintain 'TeX Live', and Compile 'LaTeX' Documents
-Version: 0.10
+Version: 0.10.1
 Authors@R: c(
   person("Yihui", "Xie", role = c("aut", "cre", "cph"), email = "xie@yihui.name", comment = c(ORCID = "0000-0003-0645-5666")),
   person(family = "RStudio, Inc.", role = "cph"),

diff --git a/R/install.R b/R/install.R
@@ -80,6 +80,12 @@ install_tinytex = function(
   }
   https = grepl('^https://', repository)
 
+  if ((texinput <- Sys.getenv('TEXINPUT')) != '') message(
+    'Your environment variable TEXINPUT is "', texinput,
+    '". Normally you should not set this variable, because it may lead to issues like ',
+    'https://github.com/yihui/tinytex/issues/92.'
+  )
+
   switch(
     os,
     'unix' = {