public void ComputeAdlerCRCRegressionTest()
{
(uint crc, ulong length)expected = (0, 0);
(uint crc, ulong length)crc_check;
crc_check = CommonUtilities.ComputeAdlerCRC(null);
Assert.AreEqual(expected, crc_check);
crc_check = CommonUtilities.ComputeAdlerCRC("filenotfound.txt");
Assert.AreEqual(expected, crc_check);
// Stable?
expected = (790105748, 38);
crc_check = CommonUtilities.ComputeAdlerCRC("TestContent/CRCTest1.txt");
Assert.AreEqual(expected, crc_check);
crc_check = CommonUtilities.ComputeAdlerCRC("TestContent/CRCTest1.txt");
Assert.AreEqual(expected, crc_check);
// Not the same as another file
(uint crc, ulong length)crc_check2 = CommonUtilities.ComputeAdlerCRC("TestContent/CRCTest2.txt");
Assert.AreNotEqual(crc_check, crc_check2);
}
public bool DeployCurrent()
{
bool database_updated = false;
if (!Directory.Exists(_currentScriptLocation))
{
Log.Logger.Warning("CURRENT not found at {0}; skipping CURRENT.", _currentScriptLocation);
return(database_updated);
}
Log.Logger.Information("Reading current scripts from {0}", _currentScriptLocation);
// Get all current scripts to run
List <string> currentScripts = new List <string>();
string[] extensionOrder = _database.GetScriptTypes();
string[] prefix_order = new string[extensionOrder.Length];
int i = 0;
foreach (string script_type in extensionOrder)
{
prefix_order[i] = _database.GetFileNamePrefix(script_type);
string ext = String.Concat(prefix_order[i], "*", _database.GetFileNameExtension());
currentScripts.AddRange(Directory.EnumerateFiles(_currentScriptLocation, ext, SearchOption.AllDirectories).ToList());
i++;
}
if (currentScripts.Count() > 0)
{
// Establish order of the scripts
Dictionary <string, List <string> > dependencies = ResolveAllDependencies(currentScripts);
Dictionary <string, int> orderedScripts = CommonUtilities.TopSort(dependencies);
List <string> scriptsToRun = currentScripts
.OrderByDescending(fn => orderedScripts[Path.GetFileNameWithoutExtension(fn).ToLower()]) // by dependency order
.ThenBy(fn2 => {
for (int j = 0; j < prefix_order.Length; j++)
{
if (Path.GetFileNameWithoutExtension(fn2).StartsWith(prefix_order[j], StringComparison.InvariantCultureIgnoreCase))
{
return(j);
}
}
throw new NotSupportedException($"Invalid prefix detected in script list {fn2}");
}) // then by database provider order defined
.Select(n => n).ToList();
// Start the deployment process
DateTime deploymentTime = DateTime.UtcNow;
using (DataContext dataContext = GetDataContext())
{
// Retrieve the existing script information we have in the database
Dictionary <string, Tuple <int, long> > existingScriptInfo = GetExistingScriptInfo(dataContext);
// Now, process each file we have on the disk
foreach (string currentFileName in scriptsToRun)
{
// Get the CRC and length of the file
(uint crc, ulong length) = CommonUtilities.ComputeAdlerCRC(currentFileName);
// Determine if we need to hit the database
bool isUpdate = false;
string key = Path.GetFileNameWithoutExtension(currentFileName).ToLower();
if (existingScriptInfo.ContainsKey(key))
{
// The script is found in the database, but lets see if the adler and length match
if (existingScriptInfo[key].Item1 == (int)crc && existingScriptInfo[key].Item2 == (long)length)
{
// Skip this script
continue;
}
isUpdate = true;
}
// Run the script against the database
using (TransactionScope ts = dataContext.StartTransaction(TransactionScopeOption.Required))
{
Stopwatch elapsedTime = Stopwatch.StartNew();
Log.Logger.Information("Running current script: {0}", currentFileName);
if (!NoDbUpdates)
{
// Run the referenced script
try
{
dataContext.ExecuteScript(currentFileName, _database.GetSplitPhrase(), _scriptReplacements);
}
catch (Exception ex)
{
throw new SystemException($"Error running script {currentFileName}: {ex.Message}", ex);
}
// Update the script tracking table with CRC and length
IDbDataParameter systemid = dataContext.CreateParameter(_database.GetParameterName("sysId"), SYSTEM_ID);
IDbDataParameter scriptname = dataContext.CreateParameter(_database.GetParameterName("scriptname"), Path.GetFileNameWithoutExtension(currentFileName));
IDbDataParameter checksum = dataContext.CreateParameter(_database.GetParameterName("checksum"), (int)crc);
IDbDataParameter len = dataContext.CreateParameter(_database.GetParameterName("length"), (long)length);
IDbDataParameter modified = dataContext.CreateParameter(_database.GetParameterName("modified"), deploymentTime);
// Some providers require parameter order to match; separate insert versus update
if (isUpdate)
{
dataContext.ExecuteNonQuery(_database.GetUpdateCurrentRecordSQL(), new List <IDbDataParameter>()
{
checksum, len, modified, systemid, scriptname
});
}
else
{
dataContext.ExecuteNonQuery(_database.GetInsertCurrentRecordSQL(), new List <IDbDataParameter>()
{
systemid, scriptname, checksum, len, modified
});
}
ts.Complete();
// Record the script in the history
ScriptHistory.Add(currentFileName);
database_updated = true;
}
Log.Logger.Information("Finished running current script {0} in {1}", currentFileName, elapsedTime.ShowElapsedTime());
}
}
}
}
return(database_updated);
}