private void cleanupOldRevisions(int revisionsToKeep)
{
if (!Directory.Exists(Path))
{
return;
}
IEnumerable <string> allSubdirectories = null;
try
{
allSubdirectories = Directory.GetDirectories(Path, "*", SearchOption.TopDirectoryOnly);
}
catch (Exception ex) // Any exception from Directory.GetDirectories()
{
ExceptionHandlers.Handle(String.Format("Cannot obtain a list of subdirectories at {0}", Path), ex);
return;
}
IEnumerable <string> subdirectoriesToBeDeleted =
allSubdirectories
.OrderByDescending(x => Directory.GetLastAccessTime(x))
.Skip(revisionsToKeep);
foreach (string directory in subdirectoriesToBeDeleted)
{
FileStorageUtils.DeleteDirectoryIfExists(directory);
}
}
private static void renameTempToPermanentFolder(string diffFolderPath, string tempDiffFolderPath)
{
FileStorageUtils.DeleteDirectoryIfExists(diffFolderPath);
try
{
Directory.Move(tempDiffFolderPath, diffFolderPath);
}
catch (Exception ex)
{
throw new FileStorageDiffCacheException(String.Format(
"Cannot rename a temp folder {0} to {1}", tempDiffFolderPath, diffFolderPath), ex);
}
}
private static void createTempFolders(string tempDiffFolderPath, string tempDiffLeftSubFolderPath,
string tempDiffRightSubFolderPath)
{
FileStorageUtils.DeleteDirectoryIfExists(tempDiffFolderPath);
try
{
Directory.CreateDirectory(tempDiffFolderPath);
Directory.CreateDirectory(tempDiffLeftSubFolderPath);
Directory.CreateDirectory(tempDiffRightSubFolderPath);
}
catch (Exception ex)
{
throw new FileStorageDiffCacheException(String.Format(
"Cannot create a temp folder {0} or one of its subfolders", tempDiffFolderPath), ex);
}
}
private FileStorageDiffCacheFolder getExistingDiffFolder(string baseSha, string headSha)
{
string indexedDir = _index.GetDirectory(baseSha, headSha);
if (String.IsNullOrEmpty(indexedDir))
{
return(null);
}
string diffFolderPath = Path.Combine(_path, indexedDir);
if (!Directory.Exists(diffFolderPath) || !verifyDiffFolder(baseSha, headSha, diffFolderPath))
{
Trace.TraceWarning("[FileStorageDiffCache] Detected invalid diff folder at path \"{0}\"", diffFolderPath);
FileStorageUtils.DeleteDirectoryIfExists(diffFolderPath);
_index.RemoveDirectory(baseSha, headSha);
return(null);
}
return(new FileStorageDiffCacheFolder(diffFolderPath));
}
private void cleanupOldDiffs()
{
FileStorageUtils.DeleteDirectoryIfExists(_path);
}
