private static void Validation(ZipCompressOption option)
{
if (!option.Inputs.Any())
{
throw new ArgumentException("The input files cannot be empty.");
}
}
public string Compress(ZipCompressOption option)
{
Validation(option);
var outputFile = GetOutputFileName(option);
if (File.Exists(outputFile) && option.FileOption == ZipFileOption.Default)
{
throw new InvalidOperationException($"File {outputFile} is existed.");
}
if (option.FileOption == ZipFileOption.OverwriteIfExisted)
{
File.Delete(outputFile);
}
using (var zip = option.FileOption == ZipFileOption.AppendIfExisted
? new ZipFile(outputFile) : ZipFile.Create(outputFile))
{
// Must call BeginUpdate to start, and CommitUpdate at the end.
zip.BeginUpdate();
if (option.Password.IsNotNullOrEmpty())
{
zip.Password = option.Password;
}
foreach (var ip in option.Inputs)
{
var full = Path.GetFullPath(ip);
if (PathEx.IsDirectory(full))
{
var folderOffset = Path.GetDirectoryName(full).Length + 1;
zip.AddDirectory(full, folderOffset);
}
// The "Add()" method will add or overwrite as necessary.
// When the optional entryName parameter is omitted, the entry will be named
else
{
zip.Add(full, Path.GetFileName(full));
}
}
// Both CommitUpdate and Close must be called.
zip.CommitUpdate();
zip.Close();
}
return(outputFile);
}
private string GetOutputFileName(ZipCompressOption option)
{
var output = string.Empty;
if (option.OutputFile.IsNotNullOrEmpty())
{
return(Path.GetFullPath(option.OutputFile));
}
var f = Path.GetFullPath(option.Inputs.First());
if (PathEx.IsDirectory(f))
{
return($"{Path.GetDirectoryName(f)}\\{new DirectoryInfo(f).Name}{Ext}");
}
return(Path.ChangeExtension(f, Ext));
}
