Add format script which invokes clang-format on the C++ source code (#41)

On Windows machines, clang-format.exe must be in the PATH environment variable.

simulation/frc_gazebo_plugins/potentiometer/src/potentiometer.cpp

@@ -6,17 +6,16 @@
 /*----------------------------------------------------------------------------*/
 
 #ifdef _WIN32
-  // Ensure that Winsock2.h is included before Windows.h, which can get
-  // pulled in by anybody (e.g., Boost).
-  #include <Winsock2.h>
+// Ensure that Winsock2.h is included before Windows.h, which can get
+// pulled in by anybody (e.g., Boost).
+#include <Winsock2.h>
 #endif
 
 #include "potentiometer.h"
 
+#include <boost/algorithm/string.hpp>
 #include <gazebo/physics/physics.hh>
 #include <gazebo/transport/transport.hh>
-#include <boost/algorithm/string.hpp>
-
 
 GZ_REGISTER_MODEL_PLUGIN(Potentiometer)
 
@@ -32,7 +31,7 @@ void Potentiometer::Load(physics::ModelPtr model, sdf::ElementPtr sdf) {
   if (sdf->HasElement("topic")) {
     topic = sdf->Get<std::string>("topic");
   } else {
-    topic = "~/"+sdf->GetAttribute("name")->GetAsString();
+    topic = "~/" + sdf->GetAttribute("name")->GetAsString();
   }
 
   if (sdf->HasElement("units")) {
@@ -41,11 +40,12 @@ void Potentiometer::Load(physics::ModelPtr model, sdf::ElementPtr sdf) {
     radians = true;
   }
 
-  gzmsg << "Initializing potentiometer: " << topic << " joint=" << joint->GetName()
-        << " radians=" << radians << std::endl;
+  gzmsg << "Initializing potentiometer: " << topic
+        << " joint=" << joint->GetName() << " radians=" << radians << std::endl;
 
   // Connect to Gazebo transport for messaging
-  std::string scoped_name = model->GetWorld()->GetName()+"::"+model->GetScopedName();
+  std::string scoped_name =
+      model->GetWorld()->GetName() + "::" + model->GetScopedName();
   boost::replace_all(scoped_name, "::", "/");
   node = transport::NodePtr(new transport::Node());
   node->Init(scoped_name);
@@ -53,10 +53,11 @@ void Potentiometer::Load(physics::ModelPtr model, sdf::ElementPtr sdf) {
 
   // Connect to the world update event.
   // This will trigger the Update function every Gazebo iteration
-  updateConn = event::Events::ConnectWorldUpdateBegin(boost::bind(&Potentiometer::Update, this, _1));
+  updateConn = event::Events::ConnectWorldUpdateBegin(
+      boost::bind(&Potentiometer::Update, this, _1));
 }
 
-void Potentiometer::Update(const common::UpdateInfo &info) {
+void Potentiometer::Update(const common::UpdateInfo& info) {
   joint->GetAngle(0).Normalize();
   msgs::Float64 msg;
   if (radians) {

simulation/frc_gazebo_plugins/potentiometer/src/potentiometer.h

@@ -32,8 +32,8 @@ using namespace gazebo;
  * - `topic`: Optional. Message will be published as a gazebo.msgs.Float64.
  * - `units`: Optional. Defaults to radians.
  */
-class Potentiometer: public ModelPlugin {
-public:
+class Potentiometer : public ModelPlugin {
+ public:
   Potentiometer();
   ~Potentiometer();
 
@@ -41,9 +41,9 @@ public:
   void Load(physics::ModelPtr model, sdf::ElementPtr sdf);
 
   /// \brief Sends out the potentiometer reading each timestep.
-  void Update(const common::UpdateInfo &info);
+  void Update(const common::UpdateInfo& info);
 
-private:
+ private:
   /// \brief Publish the angle on this topic.
   std::string topic;
 
@@ -53,9 +53,9 @@ private:
   /// \brief The joint that this potentiometer measures
   physics::JointPtr joint;
 
-
-  physics::ModelPtr model;         ///< \brief The model that this is attached to.
-  event::ConnectionPtr updateConn; ///< \brief Pointer to the world update function.
-  transport::NodePtr node;         ///< \brief The node we're advertising on.
-  transport::PublisherPtr pub;     ///< \brief Publisher handle.
+  physics::ModelPtr model;  ///< \brief The model that this is attached to.
+  event::ConnectionPtr
+      updateConn;           ///< \brief Pointer to the world update function.
+  transport::NodePtr node;  ///< \brief The node we're advertising on.
+  transport::PublisherPtr pub;  ///< \brief Publisher handle.
 };