1 files changed, 47 insertions, 1 deletions
diff --git a/lib/bundler/cli/doctor.rb b/lib/bundler/cli/doctor.rb
index 7f28a5eb13..3e0898ff8a 100644
--- a/lib/bundler/cli/doctor.rb
+++ b/lib/bundler/cli/doctor.rb
@@ -78,6 +78,8 @@ module Bundler
         end
       end
 
+      permissions_valid = check_home_permissions
+
       if broken_links.any?
         message = "The following gems are missing OS dependencies:"
         broken_links.map do |spec, paths|
@@ -86,9 +88,53 @@ module Bundler
           end
         end.flatten.sort.each {|m| message += m }
         raise ProductionError, message
-      else
+      elsif !permissions_valid
         Bundler.ui.info "No issues found with the installed bundle"
       end
     end
+
+  private
+
+    def check_home_permissions
+      require "find"
+      files_not_readable_or_writable = []
+      files_not_rw_and_owned_by_different_user = []
+      files_not_owned_by_current_user_but_still_rw = []
+      Find.find(Bundler.home.to_s).each do |f|
+        if !File.writable?(f) || !File.readable?(f)
+          if File.stat(f).uid != Process.uid
+            files_not_rw_and_owned_by_different_user << f
+          else
+            files_not_readable_or_writable << f
+          end
+        elsif File.stat(f).uid != Process.uid
+          files_not_owned_by_current_user_but_still_rw << f
+        end
+      end
+
+      ok = true
+      if files_not_owned_by_current_user_but_still_rw.any?
+        Bundler.ui.warn "Files exist in the Bundler home that are owned by another " \
+          "user, but are still readable/writable. These files are:\n - #{files_not_owned_by_current_user_but_still_rw.join("\n - ")}"
+
+        ok = false
+      end
+
+      if files_not_rw_and_owned_by_different_user.any?
+        Bundler.ui.warn "Files exist in the Bundler home that are owned by another " \
+          "user, and are not readable/writable. These files are:\n - #{files_not_rw_and_owned_by_different_user.join("\n - ")}"
+
+        ok = false
+      end
+
+      if files_not_readable_or_writable.any?
+        Bundler.ui.warn "Files exist in the Bundler home that are not " \
+          "readable/writable by the current user. These files are:\n - #{files_not_readable_or_writable.join("\n - ")}"
+
+        ok = false
+      end
+
+      ok
+    end
   end
 end