[componentkit] Gate analytics behind flag

Reviewed By: dulmarod

Differential Revision: D4217464

fbshipit-source-id: e11d172

infer/src/base/Config.ml

@@ -701,6 +701,13 @@ and cluster =
   CLOpt.mk_path_opt ~deprecated:["cluster"] ~long:"cluster"
     ~meta:"file" "Specify a .cluster file to be analyzed"
 
+and compute_analytics =
+  CLOpt.mk_bool ~long:"compute-analytics"
+    ~default:false
+    ~exes:CLOpt.[Toplevel;Clang]
+    "Emit analytics as info-level issues, like component kit line count and \
+     component kit file cyclomatic complexity"
+
 (** Continue the capture for reactive mode:
     If a procedure was changed beforehand, keep the changed marking. *)
 and continue =
@@ -1417,6 +1424,7 @@ and checkers_repeated_calls = !checkers_repeated_calls
 and clang_biniou_file = !clang_biniou_file
 and clang_include_to_override = !clang_include_to_override
 and cluster_cmdline = !cluster
+and compute_analytics = !compute_analytics
 and continue_capture = !continue
 and copy_propagation = !copy_propagation
 and crashcontext = !crashcontext

infer/src/base/Config.mli

@@ -163,6 +163,7 @@ val clang_frontend_do_capture : bool
 val clang_frontend_do_lint : bool
 val clang_include_to_override : string option
 val cluster_cmdline : string option
+val compute_analytics : bool
 val continue_capture : bool
 val copy_propagation : bool
 val crashcontext : bool

infer/tests/build_systems/build_integration_tests.py

@@ -62,7 +62,8 @@ EXPECTED_OUTPUTS_DIR = os.path.join(SCRIPT_DIR, 'expected_outputs')
 
 ALL_TESTS = [
     'cmake',
-    'componentkit',
+    'componentkit_analytics',
+    'componentkit_imports',
     'delete',
     'fail',
     'gradle',
@@ -471,8 +472,19 @@ class BuildIntegrationTest(unittest.TestCase):
                'infer_args': reactive_args},
               {'compile': ['analyze']}])
 
+    def test_clang_component_kit_analytics(self):
+        test('componentkit_analytics',
+             'component quality analyzer emits analytics info when flag is '
+             'enabled',
+             os.path.join(CODETOANALYZE_DIR, 'componentkit'),
+             [{'compile': ['clang', '-x', 'objective-c++', '-std=c++11', '-c',
+                           '-fblocks', 'TestComponentKitAnalytics.mm'],
+               'infer_args': ['--cxx', '--no-filtering', '-a', 'linters',
+                              '--compute-analytics']}])
+
     def test_clang_component_kit_imports(self):
-        test('componentkit', 'component quality analyzer  skips imports',
+        test('componentkit_imports',
+             'component quality analyzer skips imports',
              os.path.join(CODETOANALYZE_DIR, 'componentkit'),
              [{'compile': ['clang', '-x', 'objective-c++', '-std=c++11', '-c',
                            '-fblocks', 'TestIgnoreImports.mm'],

infer/tests/build_systems/codetoanalyze/componentkit/TestComponentKitAnalytics.mm

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2016 - present Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+#include "../../../codetoanalyze/objcpp/linters/componentkit/FakeComponentKitHeader.h"
+
+@interface SomeClass : CKCompositeComponent
+@end
+@implementation SomeClass
+@end

infer/tests/build_systems/expected_outputs/componentkit_analytics_report.json

@@ -0,0 +1 @@
+[]