Remove a file or similar files if wildcard is included.

   
 
#region License and Copyright
/* -------------------------------------------------------------------------
 * Dotnet Commons IO
 *
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
 * for more details. 
 *
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this library; if not, write to the 
 * 
 * Free Software Foundation, Inc., 
 * 59 Temple Place, 
 * Suite 330, 
 * Boston, 
 * MA 02111-1307 
 * USA 
 * 
 * -------------------------------------------------------------------------
 */
#endregion

using System;
using System.Collections;
using System.Globalization;
using System.IO;

namespace Dotnet.Commons.IO
{

    ///  
    /// <summary>  
    /// This class provides basic facilities for manipulating files and file paths.
    /// 
    /// <h3>File-related methods</h3>
    /// There are methods to 
    /// <list type="bullet">
    ///     <item>copy a file to another file,</item>
    ///     <item>compare the content of 2 files,</item>
    ///     <item>delete files using the wildcard character,</item>
    ///     <item>etc</item>
    /// </list>
    /// </summary>
    ///     
    public sealed class FileUtils
    {
        private static bool hasWildCards(string file)
        {
            return file.IndexOf("*") > -1;
        }

        /// ---------------------------------------------------------------
        /// <summary>
        /// Get all the files that matches a wildcard pattern, eg. (*.tmp)
        /// </summary>
        /// <param name="pathPattern">Wildcard pattern to search, eg. (Profile*.doc)</param>
        /// <returns>an array of FileInfo objects that results from the wildcard pattern file search</returns>
        /// ---------------------------------------------------------------
        public static FileInfo[] GetFilesMatchWildCard(string pathPattern)
        {
            FileInfo[] files = new FileInfo[0];
            if (hasWildCards(pathPattern))
            {
                string dir = Path.GetDirectoryName(pathPattern);
                DirectoryInfo info = new DirectoryInfo(dir);
                string pattern = Path.GetFileName(pathPattern);
                if (info.Exists)
                    files = info.GetFiles(pattern);
            }
            else
            {
                files = new FileInfo[] { new FileInfo(pathPattern.Trim()) };
            }
            return files;
        }
        /// ---------------------------------------------------------------
        /// <summary>
        /// Remove a file or similar files if wildcard is included.
        /// </summary>
        /// <param name="path">path of the file(s) to delete</param>
        /// ---------------------------------------------------------------
        public static void Remove(string path)
        {
            bool hasWildCard = FileUtils.hasWildCards(path);

            if (hasWildCard)
            {
                FileInfo[] filesToRemove = GetFilesMatchWildCard(path);
                foreach (FileInfo file in filesToRemove)
                {
                    // delete each file
                    file.Delete();
                }
                return;
            }

            FileInfo fi = new FileInfo(path);
            if (fi.Exists) fi.Delete();
        }


        /// ---------------------------------------------------------------
        /// <summary>
        /// Remove a file or Directory recursively
        /// </summary>
        /// <param name="path"></param>
        /// ---------------------------------------------------------------
        public static void RemoveAll(string path)
        {
            if (IsDirectory(path))
            {
                Directory.Delete(path, true);
            }
            else
            {
                if (FileUtils.hasWildCards(path))
                    Remove(path);
                else
                    File.Delete(path);
            }
        }
        /// ---------------------------------------------------------------
        /// <summary>
        /// Determine if a path is the path of a directory.
        /// </summary>
        /// <param name="path"></param>
        /// <returns>true if path is a valid directory, false otherwise</returns>
        /// ---------------------------------------------------------------
        public static bool IsDirectory(string path)
        {
            return Directory.Exists(path);
        }
    }
}