formula: handle unavailable missing formulae.

Fixes #4494.
2018-07-17 14:59:50 +01:00 · 2018-07-17 14:59:50 +01:00 · e63d490874
commit e63d490874
parent e4f4687261
1 changed files with 4 additions and 0 deletions
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@ -1557,6 +1557,10 @@ class Formula
    runtime_formula_dependencies.select do |f|
      hide.include?(f.name) || f.installed_prefixes.empty?
    end
+  # If we're still getting unavailable formulae at this stage the best we can
+  # do is just return no results.
+  rescue FormulaUnavailableError
+    []
  end

  # @private