/// <summary>
/// Locate file with one of possible extensions in search directories.
/// <br/><br/>
/// If file can't be found, empty string will be returned.
/// </summary>
/// <param name="file">File name with or without extension and leading path</param>
/// <param name="search">Directory search list</param>
/// <param name="extension">List of filename extensions to check (i.e. ".txt", "ini", ".")</param>
/// <param name="behaviour">Lookup behaviour (iterate over directories or extensions)</param>
/// <returns>Empty string if file not found or full path to found one</returns>
public static string Locate(string file, string[] search, string[] extension, Energy.Enumeration.LocateBehaviour behaviour)
{
if (string.IsNullOrEmpty(file))
{
return("");
}
file = Energy.Base.Path.ChangeSeparator(file);
if (search == null || search.Length == 0)
{
search = new string[] { "" };
}
if (search.Length > 0)
{
for (int i = 0; i < search.Length; i++)
{
search[i] = Energy.Base.Path.ChangeSeparator(search[i]);
}
}
if (extension == null || extension.Length == 0)
{
extension = new string[] { "" };
}
string fileExtension = System.IO.Path.GetExtension(file);
if (fileExtension.Length > 0)
{
string[] array = new string[extension.Length + 1];
array[0] = fileExtension;
Array.Copy(extension, 0, array, 1, extension.Length);
extension = array;
}
if (file.EndsWith("."))
{
file = file.Substring(0, file.Length - 1);
if (file.Length == 0)
{
return("");
}
}
switch (behaviour)
{
case Energy.Enumeration.LocateBehaviour.Default:
case Energy.Enumeration.LocateBehaviour.Directories:
for (int i = 0; i < search.Length; i++)
{
string directory = search[i];
if (string.IsNullOrEmpty(directory))
{
directory = System.IO.Directory.GetCurrentDirectory();
}
try
{
foreach (string ext in extension)
{
string candidate = System.IO.Path.Combine(directory, file);
if (!string.IsNullOrEmpty(ext) && 0 != string.Compare(".", ext, false))
{
candidate = System.IO.Path.ChangeExtension(candidate, ext);
}
if (System.IO.File.Exists(candidate))
{
return(candidate);
}
}
}
catch (Exception x)
{
Energy.Core.Bug.Catch(x);
}
}
break;
case Energy.Enumeration.LocateBehaviour.Extensions:
foreach (string ext in extension)
{
foreach (string directory in search)
{
try
{
string candidate = System.IO.Path.Combine(directory, file);
if (!string.IsNullOrEmpty(ext) && 0 == string.Compare(".", ext, false))
{
candidate = System.IO.Path.ChangeExtension(candidate, ext);
}
if (System.IO.File.Exists(candidate))
{
return(candidate);
}
}
catch (Exception x)
{
Energy.Core.Bug.Catch(x);
}
}
}
break;
}
return("");
}
/// <summary>
/// Locate file with one of possible extensions in search directory.
/// <br/><br/>
/// If file can't be found, empty string will be returned.
/// </summary>
/// <param name="list">Array of file names with or without extension and leading path</param>
/// <param name="search">Directory search list</param>
/// <param name="extension">List of filename extensions to check (i.e. ".txt", "ini", ".")</param>
/// <param name="behaviour">Lookup behaviour (iterate over directories or extensions)</param>
/// <returns>Empty string if file not found or full path to found one</returns>
public static string Locate(string[] list, string[] search, string[] extension, Energy.Enumeration.LocateBehaviour behaviour)
{
if (null == list)
{
return("");
}
string result = "";
foreach (string file in list)
{
result = Locate(file, search, extension, behaviour);
if (string.IsNullOrEmpty(result))
{
continue;
}
else
{
break;
}
}
return(result);
}
