private IEnumerable <SqlEntity> GetDependantsByEntity(SqlEntity entity, bool reversed)
{
var dependants = DependentEntities.TryGet(entity.Name).EmptyIfNull();
foreach (var dependant in dependants)
{
if (!reversed)
{
foreach (var grandDependant in GetDependantsByEntity(dependant, reversed))
{
yield return(grandDependant);
}
yield return(dependant);
}
else
{
yield return(dependant);
foreach (var grandDependant in GetDependantsByEntity(dependant, reversed))
{
yield return(grandDependant);
}
}
}
}
private static Dictionary <string, SqlEntity> GetFileToEntityMapping(Settings settings)
{
return(Directory
.EnumerateFiles(settings.Path, "*.sql", SearchOption.AllDirectories)
.AsParallel().WithDegreeOfParallelism(4).WithExecutionMode(ParallelExecutionMode.ForceParallelism)
.Select(filePath => new { path = filePath, content = GetContent(filePath) })
.Select(e => SqlEntity.Create(e.path, e.content, settings))
.Where(e => e.Type != SqlEntityType.Unknown)
.AsSequential()
.ToDictionary(e => e.Path, e => e));
}
public static SqlEntity Create(string path, string content, Settings settings)
{
var type = content.Maybe(GetEntityType, SqlEntityType.Unknown);
var entity = new SqlEntity
{
Path = path,
Type = type,
Name = content.Maybe(GetEntityName),
IsSchemaBound = content.Maybe(c => c.ContainsSql("schemabinding"), defaultValue: false) ||
type == SqlEntityType.Type,
Content = ReplaceVariables(content, settings)
};
return(entity);
}
public DropCommand(SqlEntity entity)
{
this.Entity = entity;
}
public CreateCommand(SqlEntity entity)
{
Entity = entity;
}
public void HandleInternal(string oldPath, string path)
{
var watch = Stopwatch.StartNew();
Logger.Log("started handling update of file {0}", path.Substring(settings.Path.Length));
var actions = new List <ICommand>();
var dependants = project.GetDependantsByPath(oldPath ?? path);
var reversedDependants = project.GetDependantsByPath(oldPath ?? path, reversed: true);
actions.AddRange(dependants.Select(e => new DropCommand(e)));
var oldEntity = project.FileToEntityMapping.TryGet(oldPath ?? path);
if (oldEntity != null)
{
actions.Add(new DropCommand(oldEntity));
}
if (File.Exists(path))
{
var content = SqlProjectInfo.GetContent(path);
if (content == null)
{
Logger.Log("failed to get content for file {0}", path);
}
else
{
if (oldEntity.Maybe(_ => _.Content) == content)
{
Logger.Log("fake update of {0}", path);
return; // short circuit return to prevent fake updates
}
var entity = SqlEntity.Create(path, content, settings);
if (oldEntity.Maybe(e => e.Name) != entity.Name)
{
actions.Add(new DropCommand(entity));
}
actions.Add(new CreateCommand(entity));
}
}
else
{
if (dependants.Any())
{
Logger.Log("you have removed {0}, but some entities depends on it: {1}",
project.FileToEntityMapping.TryGet(path).Maybe(e => e.Name) ?? path,
string.Join(";", dependants));
return;
}
}
actions.AddRange(reversedDependants.Select(e => new CreateCommand(e)));
while (transaction.Connection != null && actions.Any())
{
foreach (var action in actions.ToList())
{
if (transaction.Connection == null)
{
break;
}
action.Perform(transaction, project, actions.Add);
actions.Remove(action);
}
}
Logger.Log("finished handling update of file {0} for {1}", path.Substring(settings.Path.Length), watch.Elapsed);
}
