private static string GetExportPath(ArcFileNode arcNode)
{
var filePath = ArcPaths.GetOsSafePath(arcNode.Path, arcNode.FileName, arcNode.Extension);
// If the user selects an absolute path for the extract location, this overrides the current directory.
var exportDirectory = ApplicationDirectory.CreateAbsolutePath(ApplicationSettings.Instance.ExtractLocation);
var paths = new string[] { exportDirectory };
// Use the OS directory separators instead of the ARC path separators.
var exportPath = Path.Combine(paths.Concat(filePath.Split('/')).ToArray());
return(exportPath);
}
private static FileNode CreateFileNode(ArcFile arcFile, ArcFileNode arcNode, Action <string, bool> taskStart, Action <string> taskEnd)
{
// Lazy initialize the shared file list for performance reasons.
List <string> getSharedFiles() => arcFile.GetSharedFilePaths(arcNode, ApplicationSettings.Instance.ArcRegion);
// TODO: Avoid caching this information since it may change when changing regions.
var fileNode = new FileNode(arcNode.FileName, arcNode.Path, arcNode.Extension,
arcNode.IsShared, arcNode.IsRegional, arcNode.Offset, arcNode.CompSize, arcNode.DecompSize, arcNode.IsCompressed,
getSharedFiles);
fileNode.FileExtracting += (s, e) => ExtractFileAsync(arcFile, arcNode, taskStart, taskEnd);
return(fileNode);
}
private static ExtractResult TryExtractFile(ArcFile arcFile, ArcFileNode arcNode)
{
var exportPath = GetExportPath(arcNode);
// Extraction will fail if the directory doesn't exist.
var exportFileDirectory = Path.GetDirectoryName(exportPath);
try
{
if (!Directory.Exists(exportFileDirectory))
{
Directory.CreateDirectory(exportFileDirectory);
}
}
catch (Exception e)
{
Serilog.Log.Error(e, "Error creating directory {@exportFileDirectory}", exportFileDirectory);
return(new ExtractResult {
CompletionSummary = $"Error creating directory {exportFileDirectory}", Success = false
});
}
// Extraction may fail.
// TODO: Update the C# bindings to store more detailed error info?
if (!arcFile.TryExtractFile(arcNode, exportPath, ApplicationSettings.Instance.ArcRegion))
{
Serilog.Log.Logger.Error("Failed to extract to {@path}", exportPath);
return(new ExtractResult {
CompletionSummary = $"Failed to extract {arcNode.Path}", Success = false
});
}
return(new ExtractResult {
CompletionSummary = $"Extracted {arcNode.Path}", Success = false
});
}
private static async void ExtractFileAsync(ArcFile arcFile, ArcFileNode arcNode, Action <string, bool> taskStart, Action <string> taskEnd)
{
// Files extract quickly, so there's no need to update the UI by calling taskStart.
await RunBackgroundTask($"Extracting {arcNode.Path}", false, () => TryExtractFile(arcFile, arcNode), taskStart, taskEnd);
}
