Add pronto to pre_push hooks (#706)

.gitignore

@@ -3,3 +3,5 @@ coverage/
 pkg/
 .bundle
 .idea
+.history/
+.vscode/

README.md

@@ -582,6 +582,7 @@ aborted.
 * [Brakeman](lib/overcommit/hook/pre_push/brakeman.rb)
 * [Minitest](lib/overcommit/hook/pre_push/minitest.rb)
 * [PhpUnit](lib/overcommit/hook/pre_push/php_unit.rb)
+* [Pronto](lib/overcommit/hook/pre_push/pronto.rb)
 * [ProtectedBranches](lib/overcommit/hook/pre_push/protected_branches.rb)
 * [Pytest](lib/overcommit/hook/pre_push/pytest.rb)
 * [PythonNose](lib/overcommit/hook/pre_push/python_nose.rb)

config/default.yml

@@ -1297,6 +1297,13 @@ PrePush:
     flags: ['--bootstrap', 'vendor/autoload.php', 'tests']
     install_command: 'composer require --dev phpunit/phpunit'
 
+  Pronto:
+    enabled: false
+    description: 'Analyzing with pronto'
+    required_executable: 'pronto'
+    install_command: 'gem install pronto'
+    flags: ['run', '--exit-code']
+
   ProtectedBranches:
     enabled: false
     description: 'Check for illegal pushes to protected branches'

lib/overcommit/hook/pre_commit/pronto.rb

@@ -1,23 +1,12 @@
 # frozen_string_literal: true
 
+require 'overcommit/hook/shared/pronto'
+
 module Overcommit::Hook::PreCommit
   # Runs `pronto`
   #
   # @see https://github.com/mmozuras/pronto
   class Pronto < Base
-    MESSAGE_TYPE_CATEGORIZER = lambda do |type|
-      type.include?('E') ? :error : :warning
-    end
-
-    def run
-      result = execute(command)
-      return :pass if result.success?
-
-      extract_messages(
-        result.stdout.split("\n"),
-        /^(?<file>(?:\w:)?[^:]+):(?<line>\d+) (?<type>[^ ]+)/,
-        MESSAGE_TYPE_CATEGORIZER,
-      )
-    end
+    include Overcommit::Hook::Shared::Pronto
   end
 end

lib/overcommit/hook/pre_push/base.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require 'forwardable'
+require 'overcommit/utils/messages_utils'
 
 module Overcommit::Hook::PrePush
   # Functionality common to all pre-push hooks.
@@ -17,6 +18,10 @@ def run?
 
     private
 
+    def extract_messages(*args)
+      Overcommit::Utils::MessagesUtils.extract_messages(*args)
+    end
+
     def exclude_remotes
       @config['exclude_remotes'] || []
     end

lib/overcommit/hook/pre_push/pronto.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+require 'overcommit/hook/shared/pronto'
+
+module Overcommit::Hook::PrePush
+  # Runs `pronto`
+  #
+  # @see https://github.com/mmozuras/pronto
+  class Pronto < Base
+    include Overcommit::Hook::Shared::Pronto
+  end
+end

lib/overcommit/hook/shared/pronto.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+module Overcommit::Hook::Shared
+  # Shared code used by all Pronto hooks. Runs pronto linter.
+  module Pronto
+    MESSAGE_TYPE_CATEGORIZER = lambda do |type|
+      type.include?('E') ? :error : :warning
+    end
+
+    def run
+      result = execute(command)
+      return :pass if result.success?
+
+      extract_messages(
+        result.stdout.split("\n"),
+        /^(?<file>(?:\w:)?[^:]+):(?<line>\d+) (?<type>[^ ]+)/,
+        MESSAGE_TYPE_CATEGORIZER,
+      )
+    end
+  end
+end

spec/overcommit/hook/pre_push/pronto_spec.rb

@@ -0,0 +1,53 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Overcommit::Hook::PrePush::Pronto do
+  let(:config)  { Overcommit::ConfigurationLoader.default_configuration }
+  let(:context) { double('context') }
+  subject { described_class.new(config, context) }
+
+  before do
+    subject.stub(:applicable_files).and_return(%w[file1.rb file2.rb])
+  end
+
+  context 'when pronto exits successfully' do
+    before do
+      result = double('result')
+      result.stub(:success?).and_return(true)
+      subject.stub(:execute).and_return(result)
+    end
+
+    it { should pass }
+  end
+
+  context 'when pronto exits unsucessfully' do
+    let(:result) { double('result') }
+
+    before do
+      result.stub(:success?).and_return(false)
+      subject.stub(:execute).and_return(result)
+    end
+
+    context 'and it reports an error' do
+      before do
+        result.stub(:stdout).and_return([
+          'file2.rb:10 E: IDENTICAL code found in :iter.',
+        ].join("\n"))
+      end
+
+      it { should fail_hook }
+    end
+
+    context 'and it reports a warning' do
+      before do
+        result.stub(:stdout).and_return([
+          'file1.rb:12 W: Line is too long. [107/80]',
+          'file2.rb:14 I: Prefer single-quoted strings'
+        ].join("\n"))
+      end
+
+      it { should warn }
+    end
+  end
+end