Simplecov: Centralize filters setup

.simplecov

@@ -1,4 +1,17 @@
 SimpleCov.start do
+  if ENV['SIMPLECOV_ROOT']
+    SimpleCov.root(ENV['SIMPLECOV_ROOT'])
+
+    filters.clear # This will remove the :root_filter and :bundler_filter that come via simplecov's defaults
+
+    # Because simplecov filters everything outside of the SimpleCov.root
+    # This should be added, cf.
+    # https://github.com/colszowka/simplecov#default-root-filter-and-coverage-for-things-outside-of-it
+    add_filter do |src|
+      !(src.filename =~ /^#{SimpleCov.root}/)
+    end
+  end
+
   add_group 'Source code', 'lib'
 
   add_group 'Unit tests', 'spec'

bin/msync

@@ -2,34 +2,18 @@
 
 if ENV['COVERAGE']
   # This block allow us to grab code coverage when running this script.
-  # Note: This environment variable is set in Cucumber/Aruba configuration to collect reports'
+  #
+  # Note: This environment variable (ie. COVERAGE) is set in Cucumber/Aruba configuration to collect reports
+  simplecov_root = File.expand_path File.join(File.dirname(__FILE__), '..')
+
+  # When running with aruba simplecov was using /tmp/aruba as the root folder.
+  # This is to force using the project folder
+  ENV['SIMPLECOV_ROOT'] = simplecov_root
   require 'simplecov'
 
   # https://github.com/simplecov-ruby/simplecov/issues/234
   # As described in the issue, every process must have an unique name:
   SimpleCov.command_name "#{File.basename $PROGRAM_NAME} (pid: #{Process.pid})"
-
-  # When running with aruba simplecov was using /tmp/aruba as the root folder.
-  # This is to force using the project folder
-  SimpleCov.root(File.join(File.expand_path(File.dirname(__FILE__)), '..'))
-
-  SimpleCov.start do
-    filters.clear # This will remove the :root_filter and :bundler_filter that come via simplecov's defaults
-
-    # Because simplecov filters everything outside of the SimpleCov.root
-    # This should be added, cf.
-    # https://github.com/colszowka/simplecov#default-root-filter-and-coverage-for-things-outside-of-it
-    add_filter do |src|
-      !(src.filename =~ /^#{SimpleCov.root}/) unless src.filename =~ /project/
-    end
-
-    # Ignoring test folders and tmp for Aruba
-    add_filter '/spec/'
-    add_filter '/test/'
-    add_filter '/features/'
-    add_filter '/tmp/'
-    add_filter '/vendor/'
-  end
 end
 
 lib = File.expand_path('../../lib', __FILE__)