no longer require /usr/local/bin to be writable on macOS since I don'…

…t know why sometimes the the /usr/bin/osascript hack doesn't work (#24)

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: tinytex
 Type: Package
 Title: Helper Functions to Install and Maintain 'TeX Live', and Compile 'LaTeX' Documents
-Version: 0.10.10
+Version: 0.10.11
 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"),

R/install.R

@@ -93,13 +93,13 @@ install_tinytex = function(
       if (macos && file.access('/usr/local/bin', 2) != 0) {
         chown_cmd = 'chown -R `whoami`:admin /usr/local/bin'
         message(
-          'The directory /usr/local/bin is not writable. I need your admin privilege ',
-          'to make it writable. See https://github.com/yihui/tinytex/issues/24 for more info.'
+          'The directory /usr/local/bin is not writable. I recommend that you ',
+          'make it writable. See https://github.com/yihui/tinytex/issues/24 for more info.'
         )
         if (system(sprintf(
           "/usr/bin/osascript -e 'do shell script \"%s\" with administrator privileges'", chown_cmd
-          )) != 0) stop(
-          "Please run this command in your Terminal and retry installing TinyTeX:\n  sudo ",
+        )) != 0) warning(
+          "Please run this command in your Terminal (password required):\n  sudo ",
           chown_cmd, call. = FALSE
         )
       }

R/tlmgr.R

@@ -47,15 +47,15 @@ tlmgr = function(args = character(), usermode = FALSE, ..., .quiet = FALSE) {
 # add ~/bin to PATH if necessary on Linux, because sometimes PATH may not be
 # inherited (https://github.com/rstudio/rstudio/issues/1878), and TinyTeX is
 # installed to ~/bin by default; on Windows, prioritize win_app_dir('TinyTeX')
-# if it exists (so TinyTeX can be used even when MiKTeX is installed)
+# if it exists (so TinyTeX can be used even when MiKTeX is installed); on macOS,
+# check if it is necessary to add ~/Library/TinyTeX/bin/*/ to PATH
 
 #' @importFrom xfun is_linux is_unix is_macos is_windows with_ext
 tweak_path = function() {
-  if (is_macos()) return()  # assume symlinks were created under /usr/local/bin
   # check if ~/bin/tlmgr exists (created by TinyTeX by default)
   f = if (is_linux()) '~/bin/tlmgr' else if (is_windows()) {
     win_app_dir('TinyTeX', 'bin', 'win32', 'tlmgr.bat', error = FALSE)
-  } else return()
+  } else if (is_macos()) '~/Library/TinyTeX/bin/x86_64-darwin/tlmgr' else return()
   if (!file_test('-x', f)) f = getOption('tinytex.tlmgr.path', '')
   if (!file_test('-x', f)) return()
   bin = normalizePath(dirname(f))