added ability to set config opts to eslint (#9)

* added ability to set config opts to eslint

* add spec for eslint command line

2 files changed, 8 insertions, 4 deletions

diff --git a/lib/pronto/eslint_npm.rb b/lib/pronto/eslint_npm.rb
index 63a215b..6a9c00c 100644
--- a/lib/pronto/eslint_npm.rb
+++ b/lib/pronto/eslint_npm.rb
@@ -6,9 +6,9 @@ require 'shellwords'
 module Pronto
   class ESLintNpm < Runner
     CONFIG_FILE = '.pronto_eslint_npm.yml'.freeze
-    CONFIG_KEYS = %w[eslint_executable files_to_lint].freeze
+    CONFIG_KEYS = %w[eslint_executable files_to_lint cmd_line_opts].freeze
 
-    attr_writer :eslint_executable
+    attr_writer :eslint_executable, :cmd_line_opts
 
     def eslint_executable
       @eslint_executable || 'eslint'
@@ -18,6 +18,10 @@ module Pronto
       @files_to_lint || /(\.js|\.es6)$/
     end
 
+    def cmd_line_opts
+      @cmd_line_opts || ''
+    end
+
     def files_to_lint=(regexp)
       @files_to_lint = regexp.is_a?(Regexp) && regexp || Regexp.new(regexp)
     end
@@ -84,7 +88,7 @@ module Pronto
     end
 
     def eslint_command_line(path)
-      "#{eslint_executable} #{Shellwords.escape(path)} -f json"
+      "#{eslint_executable} #{cmd_line_opts} #{Shellwords.escape(path)} -f json"
     end
 
     def clean_up_eslint_output(output)
diff --git a/lib/pronto/eslint_npm/version.rb b/lib/pronto/eslint_npm/version.rb
index 2d3f9d8..1fc96c9 100644
--- a/lib/pronto/eslint_npm/version.rb
+++ b/lib/pronto/eslint_npm/version.rb
@@ -2,6 +2,6 @@
 
 module Pronto
   module ESLintNpmVersion
-    VERSION = '0.9.0'.freeze
+    VERSION = '0.9.1'.freeze
   end
 end