homebrew_version_string: check git available

2015-09-01 16:53:55 +08:00 · 2015-09-01 16:53:55 +08:00 · 8d5c445daa
commit 8d5c445daa
parent 71f794260b
1 changed files with 1 additions and 2 deletions
--- a/Library/Homebrew/utils.rb
+++ b/Library/Homebrew/utils.rb
@ -162,8 +162,7 @@ module Homebrew
  end

  def self.homebrew_version_string
-    pretty_revision = git_short_head
-    if pretty_revision
+    if Utils.git_available? && (pretty_revision = git_short_head)
      last_commit = git_last_commit_date
      "#{HOMEBREW_VERSION} (git revision #{pretty_revision}; last commit #{last_commit})"
    else