/// <summary>
/// Uninstalls the specified file.
/// </summary>
/// <remarks>
/// If the mod we are uninstalling doesn't own the file, then its version is removed
/// from the overwrites directory. If the mod we are uninstalling overwrote a file when it
/// installed the specified file, then the overwritten file is restored. Otherwise
/// the file is deleted.
/// </remarks>
/// <param name="p_strPath">The path to the file that is to be uninstalled.</param>
/// <param name="p_booSecondaryInstallPath">Whether to use the secondary install path.</param>
public void UninstallDataFile(string p_strPath, bool p_booSecondaryInstallPath)
{
string strInstallFilePath = String.Empty;
DataFileUtility.AssertFilePathIsSafe(p_strPath);
string strUninstallingModKey = InstallLog.GetModKey(Mod);
if (p_booSecondaryInstallPath && !(String.IsNullOrEmpty(GameModeInfo.SecondaryInstallationPath)))
{
strInstallFilePath = Path.Combine(GameModeInfo.SecondaryInstallationPath, p_strPath);
}
else
{
strInstallFilePath = Path.Combine(GameModeInfo.InstallationPath ?? "", p_strPath);
}
string strBackupDirectory = Path.Combine(GameModeInfo.OverwriteDirectory, Path.GetDirectoryName(p_strPath));
string strFile;
string strRestoreFromPath = string.Empty;
bool booRestoreFile = false;
FileInfo fiInfo = null;
if (File.Exists(strInstallFilePath))
{
string strCurrentOwnerKey = InstallLog.GetCurrentFileOwnerKey(p_strPath);
//if we didn't install the file, then leave it alone
if (strUninstallingModKey.Equals(strCurrentOwnerKey))
{
//if we did install the file, replace it with the file we overwrote
// when we installed the file
// if we didn't overwrite a file, then just delete the current file
fiInfo = new FileInfo(strInstallFilePath);
if (fiInfo.IsReadOnly)
{
m_lstErrorMods.Add(strInstallFilePath);
}
else
{
TransactionalFileManager.Delete(strInstallFilePath);
}
string strPreviousOwnerKey = InstallLog.GetPreviousFileOwnerKey(p_strPath);
if (strPreviousOwnerKey != null)
{
strFile = strPreviousOwnerKey + "_" + Path.GetFileName(p_strPath);
strRestoreFromPath = Path.Combine(strBackupDirectory, strFile);
if (File.Exists(strRestoreFromPath))
{
booRestoreFile = true;
}
}
if (IsPlugin)
{
if ((PluginManager.IsActivatiblePluginFile(strInstallFilePath)) && !booRestoreFile)
{
PluginManager.RemovePlugin(strInstallFilePath);
}
}
if (booRestoreFile)
{
//we get the file name this way in order to preserve the file name's case
string strBackupFileName = Path.GetFileName(Directory.GetFiles(Path.GetDirectoryName(strRestoreFromPath), Path.GetFileName(strRestoreFromPath))[0]);
strBackupFileName = strBackupFileName.Substring(strBackupFileName.IndexOf('_') + 1);
string strNewDataPath = Path.Combine(Path.GetDirectoryName(strInstallFilePath), strBackupFileName);
fiInfo = new FileInfo(strRestoreFromPath);
try
{
TransactionalFileManager.Copy(strRestoreFromPath, strNewDataPath, true);
}
catch { }
if (fiInfo.IsReadOnly)
{
m_lstErrorMods.Add(strInstallFilePath);
}
else
{
TransactionalFileManager.Delete(strRestoreFromPath);
}
}
//remove any empty directories from the data folder we may have created
TrimEmptyDirectories(Path.GetDirectoryName(strInstallFilePath), GameModeInfo.InstallationPath);
}
}
//remove our version of the file from the backup directory
string strOverwritePath = Path.Combine(strBackupDirectory, strUninstallingModKey + "_" + Path.GetFileName(p_strPath));
if (File.Exists(strOverwritePath))
{
fiInfo = new FileInfo(strOverwritePath);
if (((fiInfo.Attributes | FileAttributes.Hidden) == fiInfo.Attributes) || (fiInfo.IsReadOnly))
{
m_lstErrorMods.Add(strInstallFilePath);
}
else
{
TransactionalFileManager.Delete(strOverwritePath);
}
}
//remove any empty directories from the overwrite folder we may have created
string strStopDirectory = GameModeInfo.OverwriteDirectory;
string strFileName = Path.GetFileName(strOverwritePath);
TrimEmptyDirectories(strOverwritePath.Replace(strFileName, ""), strStopDirectory);
InstallLog.RemoveDataFile(Mod, p_strPath);
}