Add linting for copyright and unused usings (#1416)

* Add linting for copyright and unused usings

* Add one more + comment

* Enforce in build and fix errors

* Fix build

src/Microsoft.SqlTools.ResourceProvider.Core/Extensibility/ExportableAttribute.cs

@@ -10,7 +10,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
 {
     /// <summary>
     /// Attribute defining a service export, and the metadata about that service. Implements IServiceMetadata,
-    /// which should be used on the importer side to ensure type consistency. Services and providers have to add this property 
+    /// which should be used on the importer side to ensure type consistency. Services and providers have to add this property
     /// in order to be found by the extension manager
     /// </summary>
     [MetadataAttribute]
@@ -27,11 +27,11 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// <param name="priority">The priority of the exportable. The extension manager will pick the exportable with the highest priority if multiple found</param>
         /// <param name="displayName">The display name of the exportable. This field is optional</param>
         public ExportableAttribute(
-            string serverType, 
+            string serverType,
             string category,
-            Type type, 
-            string id, 
-            int priority = 0, 
+            Type type,
+            string id,
+            int priority = 0,
             string displayName = null) : base(type)
         {
             Category = category;
@@ -40,7 +40,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
             DisplayName = displayName;
             Priority = priority;
         }
-        
+
         /// <summary>
         /// The constructor to define an exportable by type, id and priority only. To be used by the exportables that support all server types and categories.
         /// For example: the implementation of <see cref="ITrace" /> can be used for all server types and categories.
@@ -60,8 +60,8 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// </summary>
         public string Category
         {
-            get; 
-            private set; 
+            get;
+            private set;
         }
 
         /// <summary>
@@ -69,8 +69,8 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// </summary>
         public string ServerType
         {
-            get; 
-            private set; 
+            get;
+            private set;
         }
 
         /// <summary>
@@ -87,7 +87,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// </summary>
         public string Id
         {
-            get; 
+            get;
             private set;
         }
 
@@ -96,7 +96,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// </summary>
         public string DisplayName
         {
-            get; 
+            get;
             private set;
         }
 
@@ -105,7 +105,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// </summary>
         public int Priority
         {
-            get; 
+            get;
             private set;
         }
     }

src/Microsoft.SqlTools.ResourceProvider.Core/Extensibility/ExportableBase.cs

@@ -26,7 +26,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// </summary>
         public IExportableMetadata Metadata
         {
-            get; 
+            get;
             set;
         }
 
@@ -36,7 +36,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// </summary>
         public IMultiServiceProvider ServiceProvider
         {
-            get; 
+            get;
             private set;
         }
 
@@ -53,7 +53,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// <returns>A service of type T or null if not found</returns>
         protected T GetService<T>()
             where T : IExportable
-        {            
+        {
             return GetService<T>(Metadata);
         }
 
@@ -90,7 +90,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         }
 
         /// <summary>
-        /// ServerDefinition created from the metadata 
+        /// ServerDefinition created from the metadata
         /// </summary>
         protected ServerDefinition ServerDefinition
         {

src/Microsoft.SqlTools.ResourceProvider.Core/Extensibility/ExportableStatus.cs

@@ -26,7 +26,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         public string ErrorMessage { get; set; }
 
         /// <summary>
-        /// An info link to navigate to 
+        /// An info link to navigate to
         /// </summary>
         public string InfoLink { get; set; }
     }

src/Microsoft.SqlTools.ResourceProvider.Core/Extensibility/ExtensionUtils.cs

@@ -11,7 +11,7 @@ using Microsoft.SqlTools.Extensibility;
 namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
 {
     /// <summary>
-    /// Extension methods for exportable and service 
+    /// Extension methods for exportable and service
     /// </summary>
     public static class ExtensionUtils
     {
@@ -48,14 +48,14 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
             {
                 return null;
             }
-            //Get all the possible matches 
+            //Get all the possible matches
             IEnumerable<T> allMatched = serverDefinition != null ?
                 exportables.Where(x => Match(x.Metadata, serverDefinition)).ToList() : exportables;
             IList<T> list = allMatched.ToList();
 
             //If specific server type requested and the list has any item with that server type remove the others.
             //for instance is there's server for all server types and one specifically for sql and give metadata is asking for sql then
-            //we should return the sql one even if the other service has higher priority 
+            //we should return the sql one even if the other service has higher priority
 
             IList<T> withSameServerType = list.Where(x => serverDefinition.HasSameServerName(x.Metadata)).ToList();
             if (withSameServerType.Any())
@@ -101,7 +101,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
             }
             return false;
         }
-        
+
         internal static string GetServerDefinitionKey(this IServerDefinition serverDefinition)
         {
             string key = string.Empty;
@@ -126,7 +126,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
             }
             return false;
         }
-        
+
         internal static bool EmptyOrEqual(this string value1, string value2)
         {
             if (string.IsNullOrEmpty(value1) && string.IsNullOrEmpty(value2))
@@ -143,12 +143,12 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
 
         /// <summary>
         /// Returns true if the metadata matches the given server definition
-        /// </summary>       
+        /// </summary>
         public static bool Match(this IServerDefinition first, IServerDefinition other)
         {
             if (first == null)
             {
-                // TODO should we handle this differently? 
+                // TODO should we handle this differently?
                 return false;
             }
             if (other == null)
@@ -158,10 +158,10 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
             return MatchMetaData(first.ServerType, other.ServerType)
                 && MatchMetaData(first.Category, other.Category);
         }
-        
+
         /// <summary>
         /// Returns true if the metadata value matches the given value
-        /// </summary>   
+        /// </summary>
         private static bool MatchMetaData(string metaData, string requestedMetaData)
         {
             if (string.IsNullOrEmpty(metaData) || string.IsNullOrEmpty(requestedMetaData))

src/Microsoft.SqlTools.ResourceProvider.Core/Extensibility/IExportable.cs

@@ -19,7 +19,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         {
             set; get;
         }
-        
+
         /// <summary>
         /// Returns the status of the exportable
         /// </summary>

src/Microsoft.SqlTools.ResourceProvider.Core/Extensibility/ITrace.cs

@@ -13,7 +13,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
     /// Provides facility to trace code execution through calls to Trace* methods.
     /// Implementing classes must add a <see cref="ExportableAttribute" />
     /// to the class in order to be found by the extension manager
-    /// </summary>  
+    /// </summary>
     public interface ITrace : IExportable
     {
         /// <summary>
@@ -40,5 +40,5 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         bool TraceException(TraceEventType eventType, int traceId, Exception exception, string message,
             [CallerLineNumber] int lineNumber = 0, [CallerFilePath] string fileName = "",
             [CallerMemberName] string memberName = "");
-    } 
+    }
 }

src/Microsoft.SqlTools.ResourceProvider.Core/Extensibility/TraceId.cs

@@ -66,7 +66,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// <summary>
         /// Trace Id for network browse traces
         /// </summary>
-        NetworkSection = 11, 
+        NetworkSection = 11,
 
         /// <summary>
         /// Trace Id for main dialog traces

src/Microsoft.SqlTools.ResourceProvider.Core/Extensibility/TraceableBase.cs

@@ -19,13 +19,13 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// </summary>
         public abstract ITrace Trace
         {
-            get; 
+            get;
             set;
         }
 
         /// <summary>
         ///  Write a trace event message to the underlying trace source.
-        /// </summary>       
+        /// </summary>
         public bool TraceEvent(TraceEventType eventType, TraceId traceId, string format, params object[] args)
         {
             return TraceEvent(eventType, (int)traceId, format, args);
@@ -33,16 +33,16 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
 
         /// <summary>
         ///  Write a trace event message to the underlying trace source.
-        /// </summary>       
+        /// </summary>
         public bool TraceEvent(TraceEventType eventType, int traceId, string format, params object[] args)
         {
             return SafeTrace(eventType, traceId, format, args);
-        }       
+        }
 
         /// <summary>
         /// Write a formatted trace event message to the underlying trace source and issue a Debug.Fail() call
         /// if condition is false.
-        /// </summary>     
+        /// </summary>
         public bool AssertTraceEvent(bool condition, TraceEventType eventType, TraceId traceId, string message)
         {
             return AssertTraceEvent(condition, eventType, (int)traceId, message);
@@ -51,7 +51,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
         /// <summary>
         /// Write a formatted trace event message to the underlying trace source and issue a Debug.Fail() call
         /// if condition is false.
-        /// </summary>     
+        /// </summary>
         public bool AssertTraceEvent(bool condition, TraceEventType eventType, int traceId, string message)
         {
             if (!condition)
@@ -129,7 +129,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
                 return DebugTraceException(eventType, traceId, exception, message);
             }
             return true;
-        }        
+        }
 
         /// <summary>
         /// Write a trace event with a message and exception details to the underlying trace source and issue a
@@ -195,7 +195,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
 
         /// <summary>
         /// Verifies ITrace instance is  not null before tracing
-        /// </summary>        
+        /// </summary>
         private bool SafeTrace(TraceEventType eventType, int traceId, string format, params object[] args)
         {
             if (Trace != null)
@@ -207,7 +207,7 @@ namespace Microsoft.SqlTools.ResourceProvider.Core.Extensibility
 
         /// <summary>
         /// Verifies ITrace instance is  not null before tracing the exception
-        /// </summary>        
+        /// </summary>
         private bool SafeTraceException(TraceEventType eventType, int traceId, Exception exception, string message,
             [CallerLineNumber] int lineNumber = 0, [CallerFilePath] string fileName = "",
             [CallerMemberName] string memberName = "")