brew.sh: error out if no Ruby found.

This is a nicer error message than the `exec` failing at a later stage.
2016-04-18 15:16:43 +01:00 · 2016-04-18 15:16:43 +01:00 · 0e8140b012
commit 0e8140b012
parent f15b631875
1 changed files with 4 additions and 0 deletions
--- a/Library/brew.sh
+++ b/Library/brew.sh
@ -70,6 +70,10 @@ then
    HOMEBREW_RUBY_PATH="/System/Library/Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby"
  else
    HOMEBREW_RUBY_PATH="$(which ruby)"
+    if [[ -z "$HOMEBREW_RUBY_PATH" ]]
+    then
+      odie "No Ruby found, cannot proceed."
+    fi
  fi
 fi