/// <summary>
/// Adds a directory entry to the <see cref="CpioFile"/>.
/// </summary>
/// <param name="entry">
/// The <see cref="ArchiveEntry"/> which represents the directory.
/// </param>
/// <param name="cpioFile">
/// The <see cref="CpioFile"/> to which to add the directory entry.
/// </param>
public void AddDirectory(ArchiveEntry entry, CpioFile cpioFile)
{
// Write out an entry for the current directory
CpioHeader directoryHeader = new CpioHeader()
{
Check = 0,
DevMajor = 1,
DevMinor = 0,
FileSize = 0,
Gid = 0,
Ino = entry.Inode,
FileMode = entry.Mode,
LastModified = entry.Modified,
Nlink = 1,
RDevMajor = 0,
RDevMinor = 0,
Signature = "070701",
Uid = 0,
NameSize = 0
};
var targetPath = entry.TargetPath;
if (!targetPath.StartsWith("."))
{
targetPath = "." + targetPath;
}
cpioFile.Write(directoryHeader, targetPath, new MemoryStream(Array.Empty <byte>()));
}
/// <summary>
/// Adds a file entry to a <see cref="CpioFile"/>.
/// </summary>
/// <param name="entry">
/// The file entry to add.
/// </param>
/// <param name="cpioFile">
/// The <see cref="CpioFile"/> to which to add the entry.
/// </param>
public void AddFile(ArchiveEntry entry, CpioFile cpioFile)
{
var targetPath = entry.TargetPath;
if (!targetPath.StartsWith("."))
{
targetPath = "." + targetPath;
}
using (Stream fileStream = File.OpenRead(entry.SourceFilename))
{
CpioHeader cpioHeader = new CpioHeader()
{
Check = 0,
DevMajor = 1,
DevMinor = 0,
FileSize = entry.FileSize,
Gid = 0, // root
Uid = 0, // root
Ino = entry.Inode,
FileMode = entry.Mode,
LastModified = entry.Modified,
NameSize = (uint)entry.TargetPath.Length + 1,
Nlink = 1,
RDevMajor = 0,
RDevMinor = 0,
Signature = "070701",
};
cpioFile.Write(cpioHeader, targetPath, fileStream);
}
}
/// <summary>
/// Adds a symlink entry to a <see cref="CpioFile"/>.
/// </summary>
/// <param name="entry">
/// The symlink entry to add.
/// </param>
/// <param name="cpioFile">
/// The <see cref="CpioFile"/> to which to add the entry.
/// </param>
public void AddSymlink(ArchiveEntry entry, CpioFile cpioFile)
{
var targetPath = entry.TargetPath;
if (!targetPath.StartsWith("."))
{
targetPath = "." + targetPath;
}
CpioHeader cpioHeader = new CpioHeader()
{
Check = 0,
DevMajor = 1,
DevMinor = 0,
FileSize = entry.FileSize,
Gid = 0, // root
Uid = 0, // root
Ino = entry.Inode,
FileMode = entry.Mode,
LastModified = entry.Modified,
NameSize = (uint)entry.TargetPath.Length + 1,
Nlink = 1,
RDevMajor = 0,
RDevMinor = 0,
Signature = "070701",
};
cpioFile.Write(cpioHeader, targetPath, new MemoryStream(Encoding.UTF8.GetBytes(entry.LinkTo)));
}
/// <summary>
/// Generates a <see cref="CpioFile"/> based on a list of <see cref="ArchiveEntry"/>
/// values.
/// </summary>
/// <param name="archiveEntries">
/// The values based on which to generate the <see cref="CpioFile"/>.
/// </param>
/// <param name="targetStream">
/// The <see cref="Stream"/> which will hold the <see cref="CpioFile"/>.
/// </param>
public void FromArchiveEntries(List <ArchiveEntry> archiveEntries, Stream targetStream)
{
using (CpioFile cpioFile = new CpioFile(targetStream, leaveOpen: true))
{
foreach (var entry in archiveEntries)
{
if (entry.Mode.HasFlag(LinuxFileMode.S_IFDIR))
{
this.AddDirectory(entry, cpioFile);
}
else
{
this.AddFile(entry, cpioFile);
}
}
cpioFile.WriteTrailer();
}
}
