/// <summary>
/// Unmerges the packages matching the given atoms.
/// </summary>
/// <param name="atomarr">package atoms for unmerging</param>
public void Unmerge(Atom[] atomarr)
{
foreach (Atom atom in atomarr) {
UnmergeEventArgs uae = new UnmergeEventArgs();
uae.Package = atom;
if (_pkgmgr.IsProtected(atom))
throw new ProtectedPackageException(atom.ToString());
if (this.OnUnmerge != null)
this.OnUnmerge.Invoke(this, uae);
IInstallProject installer = _pkgmgr.GetPackageInstaller(atom);
if (installer != null && installer.HasPkgPreRmTarget) {
_log.Info("Executing pre-removal tasks...");
installer.PkgPreRm();
}
FileTuple[] files = _pkgmgr.QueryPackageFiles(atom)
.OrderByDescending(i => i.Item1)
.ToArray();
IntPtr wow64oldval = IntPtr.Zero;
if (Environment.Is64BitOperatingSystem && !Environment.Is64BitProcess) {
if (!Wow64DisableWow64FsRedirection(out wow64oldval))
throw new InstallException("Failed to disable Wow64 file system redirection.");
}
foreach (FileTuple ft in files) {
try {
if (ft.Item2 == FileType.Directory && this.IsProtected(ft.Item1)) {
_log.DebugFormat("Skipping protected directory '{0}'", ft.Item1);
continue;
}
if (ft.Item2 == FileType.Directory) {
if (Directory.GetFiles(ft.Item1).Length > 0)
throw new IOException();
Directory.Delete(ft.Item1);
_log.InfoFormat("Deleted directory '{0}'", ft.Item1);
} else {
File.Delete(ft.Item1);
_log.InfoFormat("Deleted file '{0}'", ft.Item1);
}
} catch (DirectoryNotFoundException) {
_log.DebugFormat("Skipping non-existant directory '{0}'", ft.Item1);
} catch (FileNotFoundException) {
_log.DebugFormat("Skipping non-existant file '{0}'", ft.Item1);
} catch {
TrashWorker.AddFile(ft.Item1, _pkgmgr);
_log.WarnFormat("Marked '{0}' for future removal", ft.Item1);
}
}
if (Environment.Is64BitOperatingSystem && !Environment.Is64BitProcess)
Wow64RevertWow64FsRedirection(wow64oldval);
if (installer != null && installer.HasPkgPostRmTarget) {
_log.Info("Executing post-removal tasks...");
installer.PkgPostRm();
}
_pkgmgr.DeletePackage(atom);
Atom worldatom = Atom.Parse(atom.PackageName, AtomParseOptions.WithoutVersion);
if (_pkgmgr.FindPackages(worldatom).Length == 0)
_pkgmgr.DeselectPackage(worldatom);
}
if (this.OnAutoClean != null)
this.OnAutoClean.Invoke(this, new EventArgs());
TrashWorker.Purge(_pkgmgr);
}
/// <summary>
/// Handler for the MergeWorker.OnUnmerge event.
/// </summary>
/// <param name="sender">the merge worker</param>
/// <param name="e">event args</param>
public void MergeWorker_OnUnmerge(object sender, UnmergeEventArgs e)
{
Console.WriteLine("\n>>> Unmerging {0}", e.Package.ToString());
}
