Introduce parameter to disable CxxSquidSensor

Fix for SonarOpenCommunity#2228

SquidSensor can take significant amount of time on big projects.
Skip execution if sonar.cxx.squidDisabled parameter is set to true.

sonar-cxx-plugin/src/main/java/org/sonar/plugins/cxx/CxxSquidSensor.java

@@ -72,6 +72,7 @@
  */
 public class CxxSquidSensor implements ProjectSensor {
 
+  public static final String SQUID_DISABLED_KEY = "sonar.cxx.squid.disabled";
   public static final String DEFINES_KEY = "sonar.cxx.defines";
   public static final String INCLUDE_DIRECTORIES_KEY = "sonar.cxx.includeDirectories";
   public static final String ERROR_RECOVERY_KEY = "sonar.cxx.errorRecoveryEnabled";
@@ -144,6 +145,18 @@ public static List<PropertyDefinition> properties() {
         )
         .onQualifiers(Qualifiers.PROJECT)
         .build(),
+      PropertyDefinition.builder(SQUID_DISABLED_KEY)
+        .defaultValue(Boolean.FALSE.toString())
+        .name("Disable code quality and metrics checks")
+        .description(
+          "Disable preprocessor, metrics, duplications detection. It could be time consuming on"
+            + " big projects."
+        )
+        .category("CXX")
+        .subCategory("(1) General")
+        .onQualifiers(Qualifiers.PROJECT)
+        .type(PropertyType.BOOLEAN)
+        .build(),
       PropertyDefinition.builder(DEFINES_KEY)
         .name("(2.1) Macros")
         .description(
@@ -270,7 +283,8 @@ public void describe(SensorDescriptor descriptor) {
     descriptor
       .name("CXX")
       .onlyOnLanguage("cxx")
-      .onlyOnFileType(InputFile.Type.MAIN);
+      .onlyOnFileType(InputFile.Type.MAIN)
+      .onlyWhenConfiguration(conf -> !conf.getBoolean(SQUID_DISABLED_KEY).orElse(false));
   }
 
   /**
@@ -521,5 +535,4 @@ private <T extends Serializable> void saveMetric(InputFile file, Metric<T> metri
       .on(file)
       .save();
   }
-
 }

sonar-cxx-plugin/src/test/java/org/sonar/plugins/cxx/CxxPluginTest.java

@@ -40,7 +40,7 @@ public void testGetExtensions() throws Exception {
     var context = new Plugin.Context(runtime);
     var plugin = new CxxPlugin();
     plugin.define(context);
-    assertThat(context.getExtensions()).hasSize(80);
+    assertThat(context.getExtensions()).hasSize(81);
   }
 
 }