Formula: improve local bottle failure messaging.

1 files changed, 9 insertions, 1 deletions

diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index a26e7e448..6026f5b6e 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -406,7 +406,15 @@ class Formula
     elsif name.match bottle_regex
       bottle_filename = Pathname(name).realpath
       version = Version.parse(bottle_filename).to_s
-      name = bottle_filename.basename.to_s.rpartition("-#{version}").first
+      bottle_basename = bottle_filename.basename.to_s
+      name_without_version = bottle_basename.rpartition("-#{version}").first
+      if name_without_version.empty?
+        if ARGV.homebrew_developer?
+          opoo "Add a new version regex to version.rb to parse this filename."
+        end
+      else
+        name = name_without_version
+      end
       path = Formula.path(name)
       install_type = :from_local_bottle
     else