Define interface for lint renderers

Summary:
It makes me nervous.

Also move them to the dir.

Test Plan:
`arc lint`
`arc lint --output json`

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Koolvin

Differential Revision: https://secure.phabricator.com/D2644

src/__phutil_library_map__.php

@@ -59,15 +59,16 @@ phutil_register_library_map(array(
     'ArcanistLiberateLintEngine' => 'lint/engine/ArcanistLiberateLintEngine.php',
     'ArcanistLiberateWorkflow' => 'workflow/ArcanistLiberateWorkflow.php',
     'ArcanistLicenseLinter' => 'lint/linter/ArcanistLicenseLinter.php',
+    'ArcanistLintConsoleRenderer' => 'lint/renderer/ArcanistLintConsoleRenderer.php',
     'ArcanistLintEngine' => 'lint/engine/ArcanistLintEngine.php',
-    'ArcanistLintJSONRenderer' => 'lint/ArcanistLintJSONRenderer.php',
-    'ArcanistLintLikeCompilerRenderer' => 'lint/ArcanistLintLikeCompilerRenderer.php',
+    'ArcanistLintJSONRenderer' => 'lint/renderer/ArcanistLintJSONRenderer.php',
+    'ArcanistLintLikeCompilerRenderer' => 'lint/renderer/ArcanistLintLikeCompilerRenderer.php',
     'ArcanistLintMessage' => 'lint/ArcanistLintMessage.php',
     'ArcanistLintPatcher' => 'lint/ArcanistLintPatcher.php',
-    'ArcanistLintRenderer' => 'lint/ArcanistLintRenderer.php',
+    'ArcanistLintRenderer' => 'lint/renderer/ArcanistLintRenderer.php',
     'ArcanistLintResult' => 'lint/ArcanistLintResult.php',
     'ArcanistLintSeverity' => 'lint/ArcanistLintSeverity.php',
-    'ArcanistLintSummaryRenderer' => 'lint/ArcanistLintSummaryRenderer.php',
+    'ArcanistLintSummaryRenderer' => 'lint/renderer/ArcanistLintSummaryRenderer.php',
     'ArcanistLintWorkflow' => 'workflow/ArcanistLintWorkflow.php',
     'ArcanistLinter' => 'lint/linter/ArcanistLinter.php',
     'ArcanistLinterTestCase' => 'lint/linter/__tests__/ArcanistLinterTestCase.php',
@@ -169,6 +170,10 @@ phutil_register_library_map(array(
     'ArcanistLiberateLintEngine' => 'ArcanistLintEngine',
     'ArcanistLiberateWorkflow' => 'ArcanistBaseWorkflow',
     'ArcanistLicenseLinter' => 'ArcanistLinter',
+    'ArcanistLintConsoleRenderer' => 'ArcanistLintRenderer',
+    'ArcanistLintJSONRenderer' => 'ArcanistLintRenderer',
+    'ArcanistLintLikeCompilerRenderer' => 'ArcanistLintRenderer',
+    'ArcanistLintSummaryRenderer' => 'ArcanistLintRenderer',
     'ArcanistLintWorkflow' => 'ArcanistBaseWorkflow',
     'ArcanistLinterTestCase' => 'ArcanistPhutilTestCase',
     'ArcanistListWorkflow' => 'ArcanistBaseWorkflow',

src/lint/renderer/ArcanistLintConsoleRenderer.php

@@ -21,7 +21,7 @@
  *
  * @group lint
  */
-final class ArcanistLintRenderer {
+final class ArcanistLintConsoleRenderer implements ArcanistLintRenderer {
   private $showAutofixPatches = false;
 
   public function setShowAutofixPatches($show_autofix_patches) {

src/lint/renderer/ArcanistLintJSONRenderer.php

@@ -21,7 +21,7 @@
  *
  * @group lint
  */
-final class ArcanistLintJSONRenderer {
+final class ArcanistLintJSONRenderer implements ArcanistLintRenderer {
   const LINES_OF_CONTEXT = 3;
 
   public function renderLintResult(ArcanistLintResult $result) {

src/lint/renderer/ArcanistLintLikeCompilerRenderer.php

@@ -21,7 +21,7 @@
  *
  * @group lint
  */
-final class ArcanistLintLikeCompilerRenderer {
+final class ArcanistLintLikeCompilerRenderer implements ArcanistLintRenderer {
   public function renderLintResult(ArcanistLintResult $result) {
     $lines = array();
     $messages = $result->getMessages();

src/lint/renderer/ArcanistLintRenderer.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * Copyright 2012 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Shows lint messages to the user.
+ *
+ * @group lint
+ */
+interface ArcanistLintRenderer {
+  public function renderLintResult(ArcanistLintResult $result);
+  public function renderOkayResult();
+}

src/lint/renderer/ArcanistLintSummaryRenderer.php

@@ -21,7 +21,7 @@
  *
  * @group lint
  */
-final class ArcanistLintSummaryRenderer {
+final class ArcanistLintSummaryRenderer implements ArcanistLintRenderer {
   public function renderLintResult(ArcanistLintResult $result) {
     $messages = $result->getMessages();
     $path = $result->getPath();

src/workflow/ArcanistLiberateWorkflow.php

@@ -393,7 +393,7 @@ EOTEXT
     $paths = $this->liberateGetChangedPaths($path);
     $results = $this->liberateLintModules($path, $paths);
 
-    $renderer = new ArcanistLintRenderer();
+    $renderer = new ArcanistLintConsoleRenderer();
 
     $unresolved = false;
     foreach ($results as $result) {

src/workflow/ArcanistLintWorkflow.php

@@ -239,7 +239,7 @@ EOTEXT
         $apply_patches = $this->getArgument('apply-patches');
         break;
       default:
-        $renderer = new ArcanistLintRenderer();
+        $renderer = new ArcanistLintConsoleRenderer();
         $renderer->setShowAutofixPatches($prompt_autofix_patches);
         break;
     }

src/workflow/ArcanistSvnHookPreCommitWorkflow.php

@@ -212,7 +212,6 @@ EOTEXT
       return 0;
     }
 
-    $renderer = new ArcanistLintRenderer();
     $failures = array();
     foreach ($results as $result) {
       if (!$result->getMessages()) {
@@ -231,6 +230,8 @@ EOTEXT
         "lint checks for this commit, or '{$at}nolint' to the file with ".
         "errors to disable lint for that file.\n\n");
       echo phutil_console_wrap($msg);
+
+      $renderer = new ArcanistLintConsoleRenderer();
       foreach ($failures as $result) {
         echo $renderer->renderLintResult($result);
       }