--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MetroWpf/MetroWpf.Framework/Extensions/FileInfoExtensions.cs	Mon Mar 12 23:05:21 2012 +0800
@@ -0,0 +1,341 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace MetroWpf
+{
+    /// <summary>
+    /// Extension methods for the FileInfo and FileInfo-Array classes
+    /// </summary>
+    public static class FileInfoExtensions
+    {
+        #region · Extensions ·
+
+        /// <summary>
+        /// Renames a file.
+        /// </summary>
+        /// <param name="file">The file.</param>
+        /// <param name="newName">The new name.</param>
+        /// <returns>The renamed file</returns>
+        /// <example>
+        /// <code>
+        /// var file = new FileInfo(@"c:\test.txt");
+        /// file.Rename("test2.txt");
+        /// </code></example>
+        public static FileInfo Rename(this FileInfo file, string newName)
+        {
+            var filePath = Path.Combine(Path.GetDirectoryName(file.FullName), newName);
+
+            file.MoveTo(filePath);
+
+            return file;
+        }
+
+        /// <summary>
+        /// Renames a without changing its extension.
+        /// </summary>
+        /// <param name="file">The file.</param>
+        /// <param name="newName">The new name.</param>
+        /// <returns>The renamed file</returns>
+        /// <example>
+        /// <code>
+        /// var file = new FileInfo(@"c:\test.txt");
+        /// file.RenameFileWithoutExtension("test3");
+        /// </code></example>
+        public static FileInfo RenameFileWithoutExtension(this FileInfo file, string newName)
+        {
+            var fileName = string.Concat(newName, file.Extension);
+
+            file.Rename(fileName);
+
+            return file;
+        }
+
+        /// <summary>
+        /// Changes the files extension.
+        /// </summary>
+        /// <param name="file">The file.</param>
+        /// <param name="newExtension">The new extension.</param>
+        /// <returns>The renamed file</returns>
+        /// <example>
+        /// <code>
+        /// var file = new FileInfo(@"c:\test.txt");
+        /// file.ChangeExtension("xml");
+        /// </code></example>
+        public static FileInfo ChangeExtension(this FileInfo file, string newExtension)
+        {
+            newExtension = newExtension.EnsureStartsWith(".");
+
+            var fileName = string.Concat(Path.GetFileNameWithoutExtension(file.FullName), newExtension);
+            
+            file.Rename(fileName);
+            
+            return file;
+        }
+
+        /// <summary>
+        /// Changes the extensions of several files at once.
+        /// </summary>
+        /// <param name="files">The files.</param>
+        /// <param name="newExtension">The new extension.</param>
+        /// <returns>The renamed files</returns>
+        /// <example>
+        /// <code>
+        /// var files = directory.GetFiles("*.txt", "*.xml");
+        /// files.ChangeExtensions("tmp");
+        /// </code></example>
+        public static FileInfo[] ChangeExtensions(this FileInfo[] files, string newExtension)
+        {
+            files.ForEach(f => f.ChangeExtension(newExtension));
+
+            return files;
+        }
+
+        /// <summary>
+        /// Deletes several files at once and consolidates any exceptions.
+        /// </summary>
+        /// <param name="files">The files.</param>
+        /// <example>
+        /// <code>
+        /// var files = directory.GetFiles("*.txt", "*.xml");
+        /// files.Delete()
+        /// </code></example>
+        public static void Delete(this FileInfo[] files)
+        {
+            files.Delete(true);
+        }
+
+        /// <summary>
+        /// Deletes several files at once and optionally consolidates any exceptions.
+        /// </summary>
+        /// <param name="files">The files.</param>
+        /// <param name="consolidateExceptions">if set to <c>true</c> exceptions are consolidated and the processing is not interrupted.</param>
+        /// <example>
+        /// <code>
+        /// var files = directory.GetFiles("*.txt", "*.xml");
+        /// files.Delete()
+        /// </code></example>
+        public static void Delete(this FileInfo[] files, bool consolidateExceptions)
+        {
+            List<Exception> exceptions = null;
+
+            foreach (var file in files)
+            {
+                try
+                {
+                    file.Delete();
+                }
+                catch (Exception e)
+                {
+                    if (consolidateExceptions)
+                    {
+                        if (exceptions == null)
+                        {
+                            exceptions = new List<Exception>();
+                        }
+
+                        exceptions.Add(e);
+                    }
+                    else
+                    {
+                        throw;
+                    }
+                }
+            }
+
+            if ((exceptions != null) && (exceptions.Count > 0))
+            {
+                throw new CombinedException
+                (
+                    "Error while deleting one or several files, see InnerExceptions array for details.",
+                    exceptions.ToArray()
+                );
+            }
+        }
+
+        /// <summary>
+        /// Copies several files to a new folder at once and consolidates any exceptions.
+        /// </summary>
+        /// <param name="files">The files.</param>
+        /// <param name="targetPath">The target path.</param>
+        /// <returns>The newly created file copies</returns>
+        /// <example>
+        /// <code>
+        /// var files = directory.GetFiles("*.txt", "*.xml");
+        /// var copiedFiles = files.CopyTo(@"c:\temp\");
+        /// </code></example>
+        public static FileInfo[] CopyTo(this FileInfo[] files, string targetPath)
+        {
+            return files.CopyTo(targetPath, true);
+        }
+
+        /// <summary>
+        /// Copies several files to a new folder at once and optionally consolidates any exceptions.
+        /// </summary>
+        /// <param name="files">The files.</param>
+        /// <param name="targetPath">The target path.</param>
+        /// <param name="consolidateExceptions">if set to <c>true</c> exceptions are consolidated and the processing is not interrupted.</param>
+        /// <returns>The newly created file copies</returns>
+        /// <example>
+        /// <code>
+        /// var files = directory.GetFiles("*.txt", "*.xml");
+        /// var copiedFiles = files.CopyTo(@"c:\temp\");
+        /// </code></example>
+        public static FileInfo[] CopyTo(this FileInfo[] files, string targetPath, bool consolidateExceptions)
+        {
+            var copiedfiles = new List<FileInfo>();
+            List<Exception> exceptions = null;
+
+            foreach (var file in files)
+            {
+                try
+                {
+                    var fileName = Path.Combine(targetPath, file.Name);
+
+                    copiedfiles.Add(file.CopyTo(fileName));
+                }
+                catch (Exception e)
+                {
+                    if (consolidateExceptions)
+                    {
+                        if (exceptions == null)
+                        {
+                            exceptions = new List<Exception>();
+                        }
+
+                        exceptions.Add(e);
+                    }
+                    else
+                    {
+                        throw;
+                    }
+                }
+            }
+
+            if ((exceptions != null) && (exceptions.Count > 0))
+            {
+                throw new CombinedException
+                (
+                    "Error while copying one or several files, see InnerExceptions array for details.",
+                    exceptions.ToArray()
+                );
+            }
+
+            return copiedfiles.ToArray();
+        }
+
+        /// <summary>
+        /// Moves several files to a new folder at once and optionally consolidates any exceptions.
+        /// </summary>
+        /// <param name="files">The files.</param>
+        /// <param name="targetPath">The target path.</param>
+        /// <returns>The moved files</returns>
+        /// <example>
+        /// <code>
+        /// var files = directory.GetFiles("*.txt", "*.xml");
+        /// files.MoveTo(@"c:\temp\");
+        /// </code></example>
+        public static FileInfo[] MoveTo(this FileInfo[] files, string targetPath)
+        {
+            return files.MoveTo(targetPath, true);
+        }
+
+        /// <summary>
+        /// Movies several files to a new folder at once and optionally consolidates any exceptions.
+        /// </summary>
+        /// <param name="files">The files.</param>
+        /// <param name="targetPath">The target path.</param>
+        /// <param name="consolidateExceptions">if set to <c>true</c> exceptions are consolidated and the processing is not interrupted.</param>
+        /// <returns>The moved files</returns>
+        /// <example>
+        /// <code>
+        /// var files = directory.GetFiles("*.txt", "*.xml");
+        /// files.MoveTo(@"c:\temp\");
+        /// </code></example>
+        public static FileInfo[] MoveTo(this FileInfo[] files, string targetPath, bool consolidateExceptions)
+        {
+            List<Exception> exceptions = null;
+
+            foreach (var file in files)
+            {
+                try
+                {
+                    var fileName = Path.Combine(targetPath, file.Name);
+
+                    file.MoveTo(fileName);
+                }
+                catch (Exception e)
+                {
+                    if (consolidateExceptions)
+                    {
+                        if (exceptions == null)
+                        {
+                            exceptions = new List<Exception>();
+                        }
+
+                        exceptions.Add(e);
+                    }
+                    else
+                    {
+                        throw;
+                    }
+                }
+            }
+
+            if ((exceptions != null) && (exceptions.Count > 0))
+            {
+                throw new CombinedException
+                (
+                    "Error while moving one or several files, see InnerExceptions array for details.",
+                    exceptions.ToArray()
+                );
+            }
+
+            return files;
+        }
+
+        /// <summary>
+        /// Sets file attributes for several files at once
+        /// </summary>
+        /// <param name="files">The files.</param>
+        /// <param name="attributes">The attributes to be set.</param>
+        /// <returns>The changed files</returns>
+        /// <example>
+        /// <code>
+        /// var files = directory.GetFiles("*.txt", "*.xml");
+        /// files.SetAttributes(FileAttributes.Archive);
+        /// </code></example>
+        public static FileInfo[] SetAttributes(this FileInfo[] files, FileAttributes attributes)
+        {
+            foreach (var file in files)
+            {
+                file.Attributes = attributes;
+            }
+
+            return files;
+        }
+
+        /// <summary>
+        /// Appends file attributes for several files at once (additive to any existing attributes)
+        /// </summary>
+        /// <param name="files">The files.</param>
+        /// <param name="attributes">The attributes to be set.</param>
+        /// <returns>The changed files</returns>
+        /// <example>
+        /// <code>
+        /// var files = directory.GetFiles("*.txt", "*.xml");
+        /// files.SetAttributesAdditive(FileAttributes.Archive);
+        /// </code></example>
+        public static FileInfo[] SetAttributesAdditive(this FileInfo[] files, FileAttributes attributes)
+        {
+            foreach (var file in files)
+            {
+                file.Attributes = (file.Attributes | attributes);
+            }
+
+            return files;
+        }
+
+        #endregion
+    }
+}
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