private void ImportLocalDirectory(List <LocalDirectoryContentInfo> localDirectoryContentInfos, DirectoryInfo directoryInfo, int parentDirectoryCluster)
{
int newDirectoryClusterIndex = AddNextFreeClusterToChain();
_clusterInfos[newDirectoryClusterIndex] = new ClusterInfo()
{
FileOffset = -1,
DataBuffer = new byte[Parameters.BytesPerCluster]
};
FatAddDirectoryEntry(localDirectoryContentInfos,
parentDirectoryCluster,
newDirectoryClusterIndex,
directoryInfo.Parent.FullName,
directoryInfo.Name,
FAT16Helper.GetShortFileName(directoryInfo.Name),
FAT16Helper.DirectoryIdentifier,
directoryInfo.LastWriteTime,
0);
FatAddDirectoryEntry(localDirectoryContentInfos, newDirectoryClusterIndex, newDirectoryClusterIndex, directoryInfo.FullName, ".", ".", FAT16Helper.DirectoryIdentifier, directoryInfo.LastWriteTime, 0);
FatAddDirectoryEntry(localDirectoryContentInfos, newDirectoryClusterIndex, parentDirectoryCluster, directoryInfo.Parent.FullName, "..", "..", FAT16Helper.DirectoryIdentifier, directoryInfo.LastWriteTime, 0);
ImportLocalDiskContent(localDirectoryContentInfos, directoryInfo.FullName, newDirectoryClusterIndex);
}
private void ImportLocalFile(List <LocalDirectoryContentInfo> localDirectoryContentInfos, FileInfo fileInfo, int directoryClusterIndex)
{
long fileOffset = 0;
int fileentryStartClusterIndex = 0;
int? nextFileClusterIndex = null;
while (fileOffset < fileInfo.Length)
{
try
{
nextFileClusterIndex = AddNextFreeClusterToChain(nextFileClusterIndex);
if (fileentryStartClusterIndex == _rootDirectoryClusterIndex)
{
fileentryStartClusterIndex = nextFileClusterIndex.Value;
}
_clusterInfos[nextFileClusterIndex.Value] = new ClusterInfo()
{
FileOffset = fileOffset
};
fileOffset += Parameters.BytesPerCluster;
}
catch (IndexOutOfRangeException outOfRangeEx)
{
int localDirectorySizeMiB = (int)Directory.GetFiles(Parameters.LocalDirectoryPath, "*", SearchOption.AllDirectories).Sum(file => (new FileInfo(file).Length)) / FAT16Helper.BytesPerMiB;
_logger.LogException(outOfRangeEx, $"Local directory size is {localDirectorySizeMiB} MiB, which is too large for the given virtual disk size ({Parameters.DiskTotalBytes / FAT16Helper.BytesPerMiB} MiB)");
throw;
}
}
// handle duplicate short filenames
string TOSFileName = FAT16Helper.GetShortFileName(fileInfo.Name);
int duplicateId = 1;
while (localDirectoryContentInfos.Where(ldi => ldi.TOSFileName.Equals(TOSFileName, StringComparison.InvariantCultureIgnoreCase) &&
ldi.DirectoryCluster == directoryClusterIndex).Any())
{
int numberStringLength = duplicateId.ToString().Length + 1; // +1 for ~
int replaceIndex = TOSFileName.LastIndexOf('.') != -1 ? TOSFileName.LastIndexOf('.') : TOSFileName.Length;
replaceIndex -= numberStringLength;
TOSFileName = TOSFileName.Remove(replaceIndex, numberStringLength).Insert(replaceIndex, $"~{duplicateId}");
duplicateId++;
}
FatAddDirectoryEntry(localDirectoryContentInfos, directoryClusterIndex, fileentryStartClusterIndex,
fileInfo.DirectoryName, fileInfo.Name, TOSFileName, 0x00, fileInfo.LastWriteTime, fileInfo.Length);
}
public void CreateShortFileNameFromInvalidFileName(string invalidFileName, string expectedShortFileName)
{
var shortFileName = FAT16Helper.GetShortFileName(invalidFileName);
Assert.AreEqual(expectedShortFileName, shortFileName);
}
public void CreateShortFileNameFromLongFileName(string longFileName, string expectedShortFileName)
{
var shortFileName = FAT16Helper.GetShortFileName(longFileName);
Assert.AreEqual(expectedShortFileName, shortFileName);
}
