public void Execute(ICollection <DatabasePackage> basePackages, ICollection <DatabasePackage> comparePackages)
{
bool first = false;
//find new packages (in compare, but not in base)
foreach (var package in comparePackages)
{
var name = package.Name;
var schema = package.SchemaOwner;
var match = basePackages.FirstOrDefault(t => t.Name == name && t.SchemaOwner == schema);
if (match != null)
{
continue;
}
var script = string.Empty;
if (!first)
{
first = true;
//CREATE PACKAGE cannot be combined with other statements in a batch,
//so be preceeded by and terminate with a "/"
if (_results.Count > 0)
{
script += _writer.RunStatements() + Environment.NewLine;
}
}
script += "-- NEW PACKAGE " + package.Name + Environment.NewLine +
_writer.AddPackage(package);
CreateResult(ResultType.Add, package, script);
}
//find dropped and existing packages
foreach (var package in basePackages)
{
var name = package.Name;
var schema = package.SchemaOwner;
var match = comparePackages.FirstOrDefault(t => t.Name == name && t.SchemaOwner == schema);
if (match == null)
{
CreateResult(ResultType.Delete, package, "-- DROP PACKAGE " + package.Name + Environment.NewLine +
_writer.DropPackage(package));
continue;
}
if (package.Body == match.Body && package.Definition == match.Definition)
{
continue;
}
var script = string.Empty;
if (!first)
{
first = true;
//CREATE PACKAGE cannot be combined with other statements in a batch,
//so be preceeded by and terminate with a "/"
if (_results.Count > 0)
{
script += _writer.RunStatements() + Environment.NewLine;
}
}
//different package
script += "-- ALTER PACKAGE " + package.Name + Environment.NewLine;
//we rely on CREATE OR REPLACE here (no drop!)
script += _writer.AddPackage(match);
CreateResult(ResultType.Delete, package, script);
}
}