Ensure lack of optional parameters

LibGit2Sharp.Tests/ConfigurationFixture.cs

@@ -256,7 +256,7 @@ public void CanSetBooleanValue()
         [Fact]
         public void SettingLocalConfigurationOutsideAReposThrows()
         {
-            using (var config = new Configuration())
+            using (var config = new Configuration(null, null, null))
             {
                 Assert.Throws<LibGit2SharpException>(() => config.Set("unittests.intsetting", 3));
             }

LibGit2Sharp.Tests/MetaFixture.cs

@@ -299,5 +299,59 @@ public void NoPublicTypesUnderLibGit2SharpCoreNamespace()
                 Assert.True(false, Environment.NewLine + sb.ToString());
             }
         }
+
+        [Fact]
+        public void NoOptionalParametersinMethods()
+        {
+            IEnumerable<string> mis =
+                from t in Assembly.GetAssembly(typeof(IRepository))
+                    .GetExportedTypes()
+                from m in t.GetMethods()
+                where !m.IsObsolete()
+                from p in m.GetParameters()
+                where p.IsOptional
+                select m.DeclaringType + "." + m.Name;
+
+            var sb = new StringBuilder();
+
+            foreach (var method in mis.Distinct())
+            {
+                sb.AppendFormat("At least one overload of method '{0}' accepts an optional parameter.{1}",
+                    method, Environment.NewLine);
+            }
+
+            Assert.Equal("", sb.ToString());
+        }
+
+        [Fact]
+        public void NoOptionalParametersinConstructors()
+        {
+            IEnumerable<string> mis =
+                from t in Assembly.GetAssembly(typeof(IRepository))
+                    .GetExportedTypes()
+                from c in t.GetConstructors()
+                from p in c.GetParameters()
+                where p.IsOptional
+                select c.DeclaringType.Name;
+
+            var sb = new StringBuilder();
+
+            foreach (var method in mis.Distinct())
+            {
+                sb.AppendFormat("At least one constructor of type '{0}' accepts an optional parameter.{1}",
+                    method, Environment.NewLine);
+            }
+
+            Assert.Equal("", sb.ToString());
+        }
+    }
+
+    internal static class TypeExtensions
+    {
+        internal static bool IsObsolete(this MethodInfo methodInfo)
+        {
+            var attributes = methodInfo.GetCustomAttributes(false);
+            return attributes.Any(a => a is ObsoleteAttribute);
+        }
     }
 }

LibGit2Sharp.sln.DotSettings

@@ -10,6 +10,8 @@
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/SPACE_AFTER_TYPECAST_PARENTHESES/@EntryValue">False</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/SPACE_WITHING_EMPTY_BRACES/@EntryValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/SPACE_WITHIN_SINGLE_LINE_ARRAY_INITIALIZER_BRACES/@EntryValue">True</s:Boolean>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateInstanceFields/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EAddAccessorOwnerDeclarationBracesMigration/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EMigrateBlankLinesAroundFieldToBlankLinesAroundProperty/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EMigrateThisQualifierSettings/@EntryIndexedValue">True</s:Boolean>
 </wpf:ResourceDictionary>

LibGit2Sharp/BlobExtensions.cs

@@ -9,21 +9,44 @@ namespace LibGit2Sharp
     /// </summary>
     public static class BlobExtensions
     {
+        /// <summary>
+        /// Gets the blob content, decoded with UTF8 encoding if the encoding cannot be detected from the byte order mark
+        /// </summary>
+        /// <param name="blob">The blob for which the content will be returned.</param>
+        /// <returns>Blob content as text.</returns>
+        public static string GetContentText(this Blob blob)
+        {
+            Ensure.ArgumentNotNull(blob, "blob");
+
+            return ReadToEnd(blob.GetContentStream(), null);
+        }
+
         /// <summary>
         /// Gets the blob content decoded with the specified encoding,
-        /// or according to byte order marks, with UTF8 as fallback,
-        /// if <paramref name="encoding"/> is null.
+        /// or according to byte order marks, or the specified encoding as a fallback
         /// </summary>
         /// <param name="blob">The blob for which the content will be returned.</param>
-        /// <param name="encoding">The encoding of the text. (default: detected or UTF8)</param>
+        /// <param name="encoding">The encoding of the text to use, if it cannot be detected</param>
         /// <returns>Blob content as text.</returns>
-        public static string GetContentText(this Blob blob, Encoding encoding = null)
+        public static string GetContentText(this Blob blob, Encoding encoding)
         {
             Ensure.ArgumentNotNull(blob, "blob");
+            Ensure.ArgumentNotNull(encoding, "encoding");
 
             return ReadToEnd(blob.GetContentStream(), encoding);
         }
 
+        /// <summary>
+        /// Gets the blob content, decoded with UTF8 encoding if the encoding cannot be detected
+        /// </summary>
+        /// <param name="blob">The blob for which the content will be returned.</param>
+        /// <param name="filteringOptions">Parameter controlling content filtering behavior</param>
+        /// <returns>Blob content as text.</returns>
+        public static string GetContentText(this Blob blob, FilteringOptions filteringOptions)
+        {
+            return blob.GetContentText(filteringOptions, null);
+        }
+
         /// <summary>
         /// Gets the blob content as it would be checked out to the
         /// working directory, decoded with the specified encoding,
@@ -34,7 +57,7 @@ public static string GetContentText(this Blob blob, Encoding encoding = null)
         /// <param name="filteringOptions">Parameter controlling content filtering behavior</param>
         /// <param name="encoding">The encoding of the text. (default: detected or UTF8)</param>
         /// <returns>Blob content as text.</returns>
-        public static string GetContentText(this Blob blob, FilteringOptions filteringOptions, Encoding encoding = null)
+        public static string GetContentText(this Blob blob, FilteringOptions filteringOptions, Encoding encoding)
         {
             Ensure.ArgumentNotNull(blob, "blob");
             Ensure.ArgumentNotNull(filteringOptions, "filteringOptions");

LibGit2Sharp/BranchCollection.cs

@@ -106,14 +106,25 @@ IEnumerator IEnumerable.GetEnumerator()
 
         #endregion
 
+        /// <summary>
+        /// Create a new local branch with the specified name
+        /// </summary>
+        /// <param name="name">The name of the branch.</param>
+        /// <param name="committish">Revparse spec for the target commit.</param>
+        /// <returns>A new <see cref="Branch"/>.</returns>
+        public virtual Branch Add(string name, string committish)
+        {
+            return Add(name, committish, false);
+        }
+
         /// <summary>
         /// Create a new local branch with the specified name
         /// </summary>
         /// <param name="name">The name of the branch.</param>
         /// <param name="committish">Revparse spec for the target commit.</param>
         /// <param name="allowOverwrite">True to allow silent overwriting a potentially existing branch, false otherwise.</param>
         /// <returns>A new <see cref="Branch"/>.</returns>
-        public virtual Branch Add(string name, string committish, bool allowOverwrite = false)
+        public virtual Branch Add(string name, string committish, bool allowOverwrite)
         {
             Ensure.ArgumentNotNullOrEmptyString(name, "name");
             Ensure.ArgumentNotNullOrEmptyString(committish, "committish");
@@ -138,14 +149,25 @@ public virtual void Remove(Branch branch)
             }
         }
 
+        /// <summary>
+        /// Rename an existing local branch
+        /// </summary>
+        /// <param name="branch">The current local branch.</param>
+        /// <param name="newName">The new name the existing branch should bear.</param>
+        /// <returns>A new <see cref="Branch"/>.</returns>
+        public virtual Branch Rename(Branch branch, string newName)
+        {
+            return Rename(branch, newName, false);
+        }
+
         /// <summary>
         /// Rename an existing local branch
         /// </summary>
         /// <param name="branch">The current local branch.</param>
         /// <param name="newName">The new name the existing branch should bear.</param>
         /// <param name="allowOverwrite">True to allow silent overwriting a potentially existing branch, false otherwise.</param>
         /// <returns>A new <see cref="Branch"/>.</returns>
-        public virtual Branch Rename(Branch branch, string newName, bool allowOverwrite = false)
+        public virtual Branch Rename(Branch branch, string newName, bool allowOverwrite)
         {
             Ensure.ArgumentNotNull(branch, "branch");
             Ensure.ArgumentNotNullOrEmptyString(newName, "newName");

LibGit2Sharp/BranchCollectionExtensions.cs

@@ -7,6 +7,18 @@ namespace LibGit2Sharp
     /// </summary>
     public static class BranchCollectionExtensions
     {
+        /// <summary>
+        /// Create a new local branch with the specified name
+        /// </summary>
+        /// <param name="branches">The <see cref="BranchCollection"/> being worked with.</param>
+        /// <param name="name">The name of the branch.</param>
+        /// <param name="commit">The target commit.</param>
+        /// <returns>A new <see cref="Branch"/>.</returns>
+        public static Branch Add(this BranchCollection branches, string name, Commit commit)
+        {
+            return branches.Add(name, commit, false);
+        }
+
         /// <summary>
         /// Create a new local branch with the specified name
         /// </summary>
@@ -15,21 +27,30 @@ public static class BranchCollectionExtensions
         /// <param name="commit">The target commit.</param>
         /// <param name="allowOverwrite">True to allow silent overwriting a potentially existing branch, false otherwise.</param>
         /// <returns>A new <see cref="Branch"/>.</returns>
-        public static Branch Add(this BranchCollection branches, string name, Commit commit, bool allowOverwrite = false)
+        public static Branch Add(this BranchCollection branches, string name, Commit commit, bool allowOverwrite)
         {
             Ensure.ArgumentNotNull(commit, "commit");
 
             return branches.Add(name, commit.Sha, allowOverwrite);
         }
 
+        /// <summary>
+        /// Deletes the branch with the specified name.
+        /// </summary>
+        /// <param name="name">The name of the branch to delete.</param>
+        /// <param name="branches">The <see cref="BranchCollection"/> being worked with.</param>
+        public static void Remove(this BranchCollection branches, string name)
+        {
+           branches.Remove(name, false);
+        }
 
         /// <summary>
         /// Deletes the branch with the specified name.
         /// </summary>
         /// <param name="name">The name of the branch to delete.</param>
         /// <param name="isRemote">True if the provided <paramref name="name"/> is the name of a remote branch, false otherwise.</param>
         /// <param name="branches">The <see cref="BranchCollection"/> being worked with.</param>
-        public static void Remove(this BranchCollection branches, string name, bool isRemote = false)
+        public static void Remove(this BranchCollection branches, string name, bool isRemote)
         {
             Ensure.ArgumentNotNullOrEmptyString(name, "name");
 
@@ -45,6 +66,18 @@ public static void Remove(this BranchCollection branches, string name, bool isRe
             branches.Remove(branch);
         }
 
+        /// <summary>
+        /// Rename an existing local branch, using the default reflog message
+        /// </summary>
+        /// <param name="currentName">The current branch name.</param>
+        /// <param name="newName">The new name the existing branch should bear.</param>
+        /// <param name="branches">The <see cref="BranchCollection"/> being worked with.</param>
+        /// <returns>A new <see cref="Branch"/>.</returns>
+        public static Branch Rename(this BranchCollection branches, string currentName, string newName)
+        {
+            return branches.Rename(currentName, newName, false);
+        }
+
         /// <summary>
         /// Rename an existing local branch, using the default reflog message
         /// </summary>
@@ -53,7 +86,7 @@ public static void Remove(this BranchCollection branches, string name, bool isRe
         /// <param name="allowOverwrite">True to allow silent overwriting a potentially existing branch, false otherwise.</param>
         /// <param name="branches">The <see cref="BranchCollection"/> being worked with.</param>
         /// <returns>A new <see cref="Branch"/>.</returns>
-        public static Branch Rename(this BranchCollection branches, string currentName, string newName, bool allowOverwrite = false)
+        public static Branch Rename(this BranchCollection branches, string currentName, string newName, bool allowOverwrite)
         {
             Ensure.ArgumentNotNullOrEmptyString(currentName, "currentName");
             Ensure.ArgumentNotNullOrEmptyString(newName, "newName");

LibGit2Sharp/CommitRewriteInfo.cs

@@ -35,6 +35,46 @@ public static CommitRewriteInfo From(Commit commit)
                 };
         }
 
+         /// <summary>
+         /// Build a <see cref="CommitRewriteInfo"/> from the <see cref="Commit"/> passed in,
+         /// optionally overriding some of its properties
+         /// </summary>
+         /// <param name="commit">The <see cref="Commit"/> whose information is to be copied</param>
+        /// <param name="author">Optional override for the author</param>
+        /// <returns>A new <see cref="CommitRewriteInfo"/> object that matches the info for the
+        /// <paramref name="commit"/> with the optional parameters replaced..</returns>
+        public static CommitRewriteInfo From(Commit commit, Signature author)
+        {
+            return From(commit, author, null, null);
+        }
+
+        /// <summary>
+        /// Build a <see cref="CommitRewriteInfo"/> from the <see cref="Commit"/> passed in,
+        /// optionally overriding some of its properties
+        /// </summary>
+        /// <param name="commit">The <see cref="Commit"/> whose information is to be copied</param>
+        /// <param name="message">Optional override for the message</param>
+        /// <returns>A new <see cref="CommitRewriteInfo"/> object that matches the info for the
+        /// <paramref name="commit"/> with the optional parameters replaced..</returns>
+        public static CommitRewriteInfo From(Commit commit, string message)
+        {
+            return From(commit, null, null, message);
+        }
+
+        /// <summary>
+        /// Build a <see cref="CommitRewriteInfo"/> from the <see cref="Commit"/> passed in,
+        /// optionally overriding some of its properties
+        /// </summary>
+        /// <param name="commit">The <see cref="Commit"/> whose information is to be copied</param>
+        /// <param name="author">Optional override for the author</param>
+        /// <param name="committer">Optional override for the committer</param>
+        /// <returns>A new <see cref="CommitRewriteInfo"/> object that matches the info for the
+        /// <paramref name="commit"/> with the optional parameters replaced..</returns>
+        public static CommitRewriteInfo From(Commit commit, Signature author, Signature committer)
+        {
+            return From(commit, author, committer, null);
+        }
+
         /// <summary>
         /// Build a <see cref="CommitRewriteInfo"/> from the <see cref="Commit"/> passed in,
         /// optionally overriding some of its properties
@@ -46,9 +86,9 @@ public static CommitRewriteInfo From(Commit commit)
         /// <returns>A new <see cref="CommitRewriteInfo"/> object that matches the info for the
         /// <paramref name="commit"/> with the optional parameters replaced..</returns>
         public static CommitRewriteInfo From(Commit commit,
-                                             Signature author = null,
-                                             Signature committer = null,
-                                             string message = null)
+                                             Signature author,
+                                             Signature committer,
+                                             string message)
         {
             var cri = From(commit);
             cri.Author = author ?? cri.Author;