Adds a Url property to the RemoteUpdater, which allows the remote url to...

LibGit2Sharp.Tests/RemoteFixture.cs

@@ -68,6 +68,27 @@ public void CanSetTagFetchMode(TagFetchMode tagFetchMode)
             }
         }
 
+        [Fact]
+        public void CanSetRemoteUrl()
+        {
+            string path = CloneBareTestRepo();
+            using (var repo = new Repository(path))
+            {
+                const string name = "upstream";
+                const string url = "https://github.com/libgit2/libgit2sharp.git";
+                const string newUrl = "https://github.com/libgit2/libgit2.git";
+
+                repo.Network.Remotes.Add(name, url);
+                Remote remote = repo.Network.Remotes[name];
+                Assert.NotNull(remote);
+
+                Remote updatedremote = repo.Network.Remotes.Update(remote,
+                    r => r.Url = newUrl);
+
+                Assert.Equal(newUrl, updatedremote.Url);
+            }
+        }
+
         [Fact]
         public void CanCheckEqualityOfRemote()
         {

LibGit2Sharp/Core/NativeMethods.cs

@@ -1069,6 +1069,11 @@ internal static extern int git_remote_fetch(
         [DllImport(libgit2)]
         internal static extern int git_remote_set_push_refspecs(RemoteSafeHandle remote, ref GitStrArray array);
 
+        [DllImport(libgit2)]
+        internal static extern int git_remote_set_url(
+            RemoteSafeHandle remote,
+            [MarshalAs(UnmanagedType.CustomMarshaler, MarshalCookie = UniqueId.UniqueIdentifier, MarshalTypeRef = typeof(StrictUtf8Marshaler))] string url);
+
         [DllImport(libgit2)]
         internal static extern int git_remote_is_valid_name(
             [MarshalAs(UnmanagedType.CustomMarshaler, MarshalCookie = UniqueId.UniqueIdentifier, MarshalTypeRef = typeof(StrictUtf8Marshaler))] string remote_name);

LibGit2Sharp/Core/Proxy.cs

@@ -1975,6 +1975,15 @@ public static void git_remote_set_push_refspecs(RemoteSafeHandle remote, IEnumer
             }
         }
 
+        public static void git_remote_set_url(RemoteSafeHandle remote, string url)
+        {
+            using (ThreadAffinity())
+            {
+                int res = NativeMethods.git_remote_set_url(remote, url);
+                Ensure.ZeroResult(res);
+            }
+        }
+
         public static void git_remote_fetch(RemoteSafeHandle remote, Signature signature, string logMessage)
         {
             using (ThreadAffinity())

LibGit2Sharp/RemoteUpdater.cs

@@ -82,11 +82,25 @@ public virtual TagFetchMode TagFetchMode
             }
         }
 
+        /// <summary>
+        /// Sets the url defined for this <see cref="Remote"/>
+        /// </summary>
+        public virtual string Url
+        {
+            set
+            {
+                using (RemoteSafeHandle remoteHandle = Proxy.git_remote_load(repo.Handle, remote.Name, true))
+                {
+                    Proxy.git_remote_set_url(remoteHandle, value);
+                    Proxy.git_remote_save(remoteHandle);
+                }
+            }
+        }
+
         /// <summary>
         /// Sets the list of <see cref="RefSpec"/>s defined for this <see cref="Remote"/> that are intended to
         /// be used during a Fetch operation
         /// </summary>
-        /// <remarks>Changing the list updates the <see cref="Remote" />.</remarks>
         public virtual ICollection<string> FetchRefSpecs
         {
             get { return fetchRefSpecs; }
@@ -97,7 +111,6 @@ public virtual ICollection<string> FetchRefSpecs
         /// Sets or gets the list of <see cref="RefSpec"/>s defined for this <see cref="Remote"/> that are intended to
         /// be used during a Push operation
         /// </summary>
-        /// <remarks>Changing the list updates the <see cref="Remote" />.</remarks>
         public virtual ICollection<string> PushRefSpecs
         {
             get { return pushRefSpecs; }