1 files changed, 45 insertions, 0 deletions
diff --git a/Library/Homebrew/.simplecov b/Library/Homebrew/.simplecov
new file mode 100755
index 000000000..a7758c448
--- /dev/null
+++ b/Library/Homebrew/.simplecov
@@ -0,0 +1,45 @@
+#!/usr/bin/env ruby
+
+SimpleCov.start do
+  coverage_dir File.expand_path("../test/coverage", File.realpath(__FILE__))
+  root File.expand_path("..", File.realpath(__FILE__))
+
+  # We manage the result cache ourselves and the default of 10 minutes can be
+  # too low (particularly on Travis CI), causing results from some integration
+  # tests to be dropped. This causes random fluctuations in test coverage.
+  merge_timeout 86400
+
+  add_filter "/Homebrew/cask/spec/"
+  add_filter "/Homebrew/cask/test/"
+  add_filter "/Homebrew/compat/"
+  add_filter "/Homebrew/test/"
+  add_filter "/Homebrew/vendor/"
+
+  if ENV["HOMEBREW_INTEGRATION_TEST"]
+    command_name ENV["HOMEBREW_INTEGRATION_TEST"]
+    at_exit do
+      exit_code = $!.nil? ? 0 : $!.status
+      $stdout.reopen("/dev/null")
+      SimpleCov.result # Just save result, but don't write formatted output.
+      exit! exit_code
+    end
+  else
+    # Not using this during integration tests makes the tests 4x times faster
+    # without changing the coverage.
+    track_files "#{SimpleCov.root}/**/*.rb"
+  end
+
+  # Add groups and the proper project name to the output.
+  project_name "Homebrew"
+  add_group "Cask", "/Homebrew/cask/"
+  add_group "Commands", %w[/Homebrew/cmd/ /Homebrew/dev-cmd/]
+  add_group "Extensions", "/Homebrew/extend/"
+  add_group "OS", %w[/Homebrew/extend/os/ /Homebrew/os/]
+  add_group "Requirements", "/Homebrew/requirements/"
+  add_group "Scripts", %w[
+    /Homebrew/brew.rb
+    /Homebrew/build.rb
+    /Homebrew/postinstall.rb
+    /Homebrew/test.rb
+  ]
+end