public void CopyFiles()
{
#region Loading settings...
Logger.Info("Loading settings...");
DirectoryInfo sourceDir = new DirectoryInfo(Settings.SourceFolder);
DirectoryInfo destinationDir = new DirectoryInfo(Settings.DestinationFolder);
bool alphaNumericOnly = Settings.AlphaNumericOnly;
bool recursiveSearch = Settings.RecursiveSearch;
Logger.Info("Loaded settings.");
#endregion
#region Building HashSet...
Logger.Info("Building HashSet...");
// Create hashset, filtering out spaces and special characters as necessary
HashSet <string> list = alphaNumericOnly
? new HashSet <string>(Program.Settings.FileNames
.Select(n => StringFilter.ApplyFilters(n, FilterOptions.RemoveSpaces | FilterOptions.RemoveSpecialCharacters)),
StringComparer.OrdinalIgnoreCase)
: new HashSet <string>(Program.Settings.FileNames, StringComparer.OrdinalIgnoreCase);
// Full names of files successfully copied from sourceDir to destinationDir
List <string> copied = new List <string>(Program.Settings.FileNames.Length);
// Full names of files in sourceDir but not in list
List <string> skipped = new List <string>(Program.Settings.FileNames.Length);
// Full names of files in sourceDir and list but could not be copied
List <FailedCopy> failed = new List <FailedCopy>(Program.Settings.FileNames.Length);
Logger.Info("Built HashSet.");
#endregion
#region Copying files
Logger.Info($"Attempting to copy {{{list.Count}}} files from" +
$" {{{Program.Settings.SourceFolder}}} to {{{Program.Settings.DestinationFolder}}}.");
// Set to true when a message is logged to the file but not to the GUI
// If true after all operations finish, an additional message is shown to let the user know
bool additionalMessagesInFile = false;
int filesEnumerated = 0;
foreach (FileInfo file in sourceDir.EnumerateFiles())
{
filesEnumerated++;
if (list.Contains(file.Name, StringComparer.OrdinalIgnoreCase))
{
try
{
string destFile = Path.Combine(destinationDir.FullName, file.Name);
// Skip if destination file already exists
if (File.Exists(destFile))
{
Logger.Error($"Failed to copy {{{file.Name}}}. File {{{destFile}}} already exists.",
LogTarget.File);
additionalMessagesInFile = true;
failed.Add(new FailedCopy(file.FullName, FailedReason.AlreadyExists));
continue;
}
file.CopyTo(Path.Combine(destinationDir.FullName, file.Name));
copied.Add(file.FullName);
}
catch (Exception e)
{
Logger.Error($"Failed to copy {file.Name}.", e);
failed.Add(new FailedCopy(file.FullName, FailedReason.Other));
}
}
else
{
skipped.Add(file.FullName);
}
}
var groups = failed.GroupBy(f => f.Reason).Select(f => new { Reason = f.Key, Count = f.Count() }).ToArray();
string failedSection = groups.Length != 0
? groups.Aggregate("", (current, group) => current + $", Failed ({group.Reason}): {{{group.Count}}}")
: ", Failed: {0}";
Logger.Info("Operation completed." + Environment.NewLine +
$"... Of {{{filesEnumerated}}} files enumerated:" + Environment.NewLine +
$"... Copied: {{{copied.Count}}}, Skipped: {{{skipped.Count}}}{failedSection}");
if (additionalMessagesInFile)
{
Logger.Warning("Some messages were not displayed here for the sake of brevity. " +
$"See {{{Logger.FileFullName}}} for a verbose log.",
LogTarget.TextBox);
}
#endregion
}
