/// <summary>
/// Gets path with unique filename for a new file or directory.
/// If the specified path is of an existing file or directory, returns path where the filename part is modified like "file 2.txt", "file 3.txt" etc. Else returns unchanged path.
/// </summary>
/// <param name="path">Suggested full path.</param>
/// <param name="isDirectory">The path is for a directory. The number is always appended at the very end, not before .extension.</param>
public static string MakeUnique(string path, bool isDirectory)
{
if (!AFile.ExistsAsAny(path))
{
return(path);
}
string ext = isDirectory ? null : GetExtension(path, out path);
for (int i = 2; ; i++)
{
var s = path + " " + i + ext;
if (!AFile.ExistsAsAny(s))
{
return(s);
}
}
}
//Used by Run and RunConsole.
static string _NormalizeFile(bool runConsole, string file, out bool isFullPath, out bool isShellPath)
{
isShellPath = isFullPath = false;
file = APath.ExpandEnvVar(file);
if (file.NE())
{
throw new ArgumentException();
}
if (runConsole || !(isShellPath = APath.IsShellPath_(file)))
{
if (isFullPath = APath.IsFullPath(file))
{
var fl = runConsole ? PNFlags.DontExpandDosPath : PNFlags.DontExpandDosPath | PNFlags.DontPrefixLongPath;
file = APath.Normalize_(file, fl, true);
//ShellExecuteEx supports long path prefix for exe but not for documents.
//Process.Run supports long path prefix, except when the exe is .NET.
if (!runConsole)
{
file = APath.UnprefixLongPath(file);
}
if (ADisableFsRedirection.IsSystem64PathIn32BitProcess(file) && !AFile.ExistsAsAny(file))
{
file = ADisableFsRedirection.GetNonRedirectedSystemPath(file);
}
}
else if (!APath.IsUrl(file))
{
//ShellExecuteEx searches everywhere except in app folder.
//Process.Run prefers current directory.
var s2 = AFile.SearchPath(file);
if (s2 != null)
{
file = s2;
isFullPath = true;
}
}
}
return(file);
}
