public class Program
{
public static void Main()
{
// Path to directory of
files to compress and decompress.
string dirpath = @"c:\users\public\reports";
DirectoryInfo di = new DirectoryInfo(dirpath);
// Compress the
directory's files.
foreach (FileInfo fi in di.GetFiles())
{
Compress(fi);
}
// Decompress all *.gz
files in the directory.
foreach (FileInfo fi in di.GetFiles("*.gz"))
{
Decompress(fi);
}
}
public static void Compress(FileInfo fi)
{
// Get the stream of
the source file.
using (FileStream inFile = fi.OpenRead())
{
// Prevent
compressing hidden and
// already
compressed files.
if ((File.GetAttributes(fi.FullName)
&
FileAttributes.Hidden)
!= FileAttributes.Hidden & fi.Extension != ".gz")
{
// Create
the compressed file.
using (FileStream outFile =
File.Create(fi.FullName + ".gz"))
{
using (GZipStream Compress =
new GZipStream(outFile,
CompressionMode.Compress))
{
// Copy
the source file into
// the
compression stream.
inFile.CopyTo(Compress);
Console.WriteLine("Compressed {0}
from {1} to {2} bytes.",
fi.Name, fi.Length.ToString(), outFile.Length.ToString());
}
}
}
}
}
public static void Decompress(FileInfo fi)
{
// Get the stream of
the source file.
using (FileStream inFile = fi.OpenRead())
{
// Get original file extension, for example
//
"doc" from report.doc.gz.
string curFile = fi.FullName;
string origName = curFile.Remove(curFile.Length -
fi.Extension.Length);
//Create
the decompressed file.
using (FileStream outFile = File.Create(origName))
{
using (GZipStream Decompress = new GZipStream(inFile,
CompressionMode.Decompress))
{
// Copy the
decompression stream
// into
the output file.
Decompress.CopyTo(outFile);
Console.WriteLine("Decompressed:
{0}",
fi.Name);
}
}
}
}
}
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