Allow excluding files to lint for single runner

```
eslint:
  exclude:
    - 'app/assets/**/*'
```

README.md

@@ -74,13 +74,13 @@ Just run `pronto` without any arguments to see what Pronto is capable of.
 
 Available Options
 
-Command flag     | Description
------------------|------------------------------------------------------------
-`--exit-code`    | Exits with non-zero code if there were any warnings/errors.
-`-c/--commit`    | Commit for the diff.
-`-i/--index`     | Analyze changes in git index (staging area).
-`-r/--runner`    | Run only the passed runners.
-`-f/--formatters`| Pick output formatters.
+| Command flag      | Description                                                 |
+|:------------------|:------------------------------------------------------------|
+| `--exit-code`     | Exits with non-zero code if there were any warnings/errors. |
+| `-c/--commit`     | Commit for the diff.                                        |
+| `-i/--index`      | Analyze changes in git index (staging area).                |
+| `-r/--runner`     | Run only the passed runners.                                |
+| `-f/--formatters` | Pick output formatters.                                     |
 
 ### GitHub Integration
 
@@ -180,6 +180,10 @@ The file has the following format:
 all:
   exclude:
     - 'spec/**/*'
+# exclude files for single runner
+eslint:
+  exclude:
+    - 'app/assets/**/*'
 github:
   slug: mmozuras/pronto
   access_token: B26354

lib/pronto/config.rb

@@ -16,8 +16,15 @@ def consolidate_comments?
       !(consolidated).nil?
     end
 
-    def excluded_files
-      @excluded_files ||= Array(exclude)
+    def excluded_files(runner)
+      files =
+        if runner == 'all'
+          ENV['PRONTO_EXCLUDE'] || @config_hash['all']['exclude']
+        else
+          @config_hash.fetch(runner, {})['exclude']
+        end
+
+      Array(files)
         .flat_map { |path| Dir[path.to_s] }
         .map { |path| File.expand_path(path) }
     end
@@ -40,11 +47,5 @@ def logger
         verbose ? Logger.new($stdout) : Logger.silent
       end
     end
-
-    private
-
-    def exclude
-      ENV['PRONTO_EXCLUDE'] || @config_hash['all']['exclude']
-    end
   end
 end

lib/pronto/formatter/github_status_formatter/status_builder.rb

@@ -1,5 +1,4 @@
 require_relative 'sentence'
-require_relative 'inflector'
 
 module Pronto
   module Formatter
@@ -20,7 +19,7 @@ def state
         end
 
         def context
-          Inflector.underscore(@runner.name)
+          "pronto/#{@runner.title}"
         end
 
         private

lib/pronto/runner.rb

@@ -11,6 +11,14 @@ def self.runners
       repository
     end
 
+    def self.title
+      @runner_name ||= begin
+        source_path, _line = instance_method(:run).source_location
+        file_name, _extension = File.basename(source_path).split('.')
+        file_name
+      end
+    end
+
     def ruby_patches
       return [] unless @patches
 

lib/pronto/runners.rb

@@ -6,29 +6,31 @@ def initialize(runners = Runner.runners, config = Config.new)
     end
 
     def run(patches)
-      patches = reject_excluded(patches)
-      return [] unless patches.any?
+      patches = reject_excluded(@config.excluded_files('all'), patches)
+      return [] if patches.none?
 
       result = []
       @runners.each do |runner|
         next if exceeds_max?(result)
         @config.logger.log("Running #{runner}")
-        result += runner.new(patches, patches.commit).run.flatten.compact
+        runner_patches = reject_excluded(
+          @config.excluded_files(runner.title), patches
+        )
+        next if runner_patches.none?
+        result += runner.new(runner_patches, patches.commit).run.flatten.compact
       end
       result = result.take(@config.max_warnings) if @config.max_warnings
       result
     end
 
     private
 
-    def reject_excluded(patches)
-      return patches unless @config.excluded_files.any?
-      patches.reject! { |patch| excluded?(patch) }
-      patches
-    end
+    def reject_excluded(excluded_files, patches)
+      return patches unless excluded_files.any?
 
-    def excluded?(patch)
-      @config.excluded_files.include?(patch.new_file_full_path.to_s)
+      patches.reject do |patch|
+        excluded_files.include?(patch.new_file_full_path.to_s)
+      end
     end
 
     def exceeds_max?(warnings)

lib/pronto/version.rb

@@ -1,6 +1,6 @@
 module Pronto
   module Version
-    STRING = '0.7.1'.freeze
+    STRING = '0.7.2'.freeze
 
     MSG = '%s (running on %s %s %s)'.freeze
 

spec/pronto/formatter/github_status_formatter_spec.rb

@@ -9,8 +9,8 @@ module Formatter
         let(:repo) { Git::Repository.new('spec/fixtures/test.git') }
         let(:runner_class) do
           Class.new do
-            def self.name
-              'Pronto::FakeRunner'
+            def self.title
+              'fake_runner'
             end
           end
         end

spec/pronto/runners_spec.rb

@@ -2,7 +2,7 @@ module Pronto
   describe Runners do
     describe '#run' do
       subject { described_class.new(runners, config).run(patches) }
-      let(:patches) { double(commit: nil, any?: true) }
+      let(:patches) { double(commit: nil, none?: false) }
       let(:config) { Config.new }
 
       context 'no runners' do
@@ -12,6 +12,10 @@ module Pronto
 
       context 'fake runner' do
         class FakeRunner
+          def self.title
+            'fake_runner'
+          end
+
           def initialize(_, _)
           end
 

spec/pronto_spec.rb

@@ -18,6 +18,10 @@ module Pronto
 
       context 'a single runner' do
         class Shakespeare
+          def self.title
+            'shakespeare'
+          end
+
           def initialize(patches, _)
             @patches = patches
           end