Compares 2 files and determines if they are the same or not

   
 

/*
Copyright (c) 2010 <a href="http://www.gutgames.com">James Craig</a>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.*/

#region Usings
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Text;

#endregion

namespace Utilities
{
    public static class FileManager
    {
        /// <summary>
        /// Gets a files&#039; contents
        /// </summary>
        /// <param name="FileName">File name</param>
        /// <returns>a string containing the file&#039;s contents</returns>
        public static string GetFileContents(string FileName)
        {
            try
            {
                return GetFileContents(FileName, 5000);
            }
            catch { throw; }
        }

        /// <summary>
        /// Gets a files&#039; contents
        /// </summary>
        /// <param name="FileName">File name</param>
        /// <param name="TimeOut">Amount of time in ms to wait for the file</param>
        /// <returns>a string containing the file&#039;s contents</returns>
        public static string GetFileContents(string FileName, int TimeOut)
        {
            StreamReader Reader = null;
            int StartTime = System.Environment.TickCount;
            try
            {
                bool Opened = false;
                while (!Opened)
                {
                    try
                    {
                        if (System.Environment.TickCount - StartTime >= TimeOut)
                            throw new System.IO.IOException("File opening timed out");
                        Reader = File.OpenText(FileName);
                        Opened = true;
                    }
                    catch (System.IO.IOException e)
                    {
                        throw e;
                    }
                }
                string Contents = Reader.ReadToEnd();
                Reader.Close();
                return Contents;
            }
            catch
            {
                return "";
            }
            finally
            {
                if (Reader != null)
                {
                    Reader.Close();
                    Reader.Dispose();
                }
            }
        }
        /// <summary>
        /// Compares 2 files and determines if they are the same or not
        /// </summary>
        /// <param name="FileName1">name of the first file</param>
        /// <param name="FileName2">name of the second file</param>
        /// <returns>False if they are different, otherwise it returns true.</returns>
        public static bool CompareFiles(string FileName1, string FileName2)
        {
            try
            {
                FileInfo File1 = new FileInfo(FileName1);
                FileInfo File2 = new FileInfo(FileName2);
                if (File1.Length != File2.Length)
                {
                    return false;
                }
                string File1Contents = FileManager.GetFileContents(FileName1);
                string File2Contents = FileManager.GetFileContents(FileName2);
                if (!File1Contents.Equals(File2Contents))
                    return false;
                return true;
            }
            catch (Exception a)
            {
                throw a;
            }
        }


    }
}

   
     


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