/// <summary>
/// Adds or replaces a <see cref="TreeEntryDefinition"/> at the specified <paramref name="targetTreeEntryPath"/> location.
/// </summary>
/// <param name="targetTreeEntryPath">The path within this <see cref="TreeDefinition"/>.</param>
/// <param name="treeEntryDefinition">The <see cref="TreeEntryDefinition"/> to be stored at the described location.</param>
/// <returns>The current <see cref="TreeDefinition"/>.</returns>
public virtual TreeDefinition Add(string targetTreeEntryPath, TreeEntryDefinition treeEntryDefinition)
{
Ensure.ArgumentNotNullOrEmptyString(targetTreeEntryPath, "targetTreeEntryPath");
Ensure.ArgumentNotNull(treeEntryDefinition, "treeEntryDefinition");
if (treeEntryDefinition is TransientTreeTreeEntryDefinition)
{
throw new InvalidOperationException(string.Format(CultureInfo.InvariantCulture,
"The {0} references a target which hasn't been created in the {1} yet. " +
"This situation can occur when the target is a whole new {2} being created, " +
"or when an existing {2} is being updated because some of its children were added/removed.",
typeof(TreeEntryDefinition).Name,
typeof(ObjectDatabase).Name,
typeof(Tree).Name));
}
Tuple <string, string> segments = ExtractPosixLeadingSegment(targetTreeEntryPath);
if (segments.Item2 != null)
{
TreeDefinition td = RetrieveOrBuildTreeDefinition(segments.Item1, true);
td.Add(segments.Item2, treeEntryDefinition);
}
else
{
AddEntry(segments.Item1, treeEntryDefinition);
}
return(this);
}
/// <summary>
/// Builds a <see cref="TreeDefinition"/> from an existing <see cref="Tree"/>.
/// </summary>
/// <param name="tree">The <see cref="Tree"/> to be processed.</param>
/// <returns>A new <see cref="TreeDefinition"/> holding the meta data of the <paramref name="tree"/>.</returns>
public static TreeDefinition From(Tree tree)
{
Ensure.ArgumentNotNull(tree, "tree");
var td = new TreeDefinition();
foreach (TreeEntry treeEntry in tree)
{
td.Add(treeEntry.Name, treeEntry);
}
return(td);
}
private TreeDefinition RetrieveOrBuildTreeDefinition(string treeName, bool shouldOverWrite)
{
TreeDefinition td;
if (unwrappedTrees.TryGetValue(treeName, out td))
{
return(td);
}
TreeEntryDefinition treeEntryDefinition;
bool hasAnEntryBeenFound = entries.TryGetValue(treeName, out treeEntryDefinition);
if (hasAnEntryBeenFound)
{
switch (treeEntryDefinition.TargetType)
{
case TreeEntryTargetType.Tree:
td = From(treeEntryDefinition.Target as Tree);
break;
case TreeEntryTargetType.Blob:
case TreeEntryTargetType.GitLink:
if (shouldOverWrite)
{
td = new TreeDefinition();
break;
}
return(null);
default:
throw new NotImplementedException();
}
}
else
{
if (!shouldOverWrite)
{
return(null);
}
td = new TreeDefinition();
}
entries[treeName] = new TransientTreeTreeEntryDefinition();
unwrappedTrees.Add(treeName, td);
return(td);
}
/// <summary>
/// Retrieves the <see cref="TreeEntryDefinition"/> located the specified <paramref name="treeEntryPath"/> path.
/// </summary>
/// <param name="treeEntryPath">The path within this <see cref="TreeDefinition"/>.</param>
/// <returns>The found <see cref="TreeEntryDefinition"/> if any; null otherwise.</returns>
public virtual TreeEntryDefinition this[string treeEntryPath]
{
get
{
Ensure.ArgumentNotNullOrEmptyString(treeEntryPath, "treeEntryPath");
Tuple <string, string> segments = ExtractPosixLeadingSegment(treeEntryPath);
if (segments.Item2 != null)
{
TreeDefinition td = RetrieveOrBuildTreeDefinition(segments.Item1, false);
return(td == null
? null
: td[segments.Item2]);
}
TreeEntryDefinition treeEntryDefinition;
return(!entries.TryGetValue(segments.Item1, out treeEntryDefinition) ? null : treeEntryDefinition);
}
}
/// <summary>
/// Inserts a <see cref="Tree"/> into the object database, created from a <see cref="TreeDefinition"/>.
/// </summary>
/// <param name="treeDefinition">The <see cref="TreeDefinition"/>.</param>
/// <returns>The created <see cref="Tree"/>.</returns>
public virtual Tree CreateTree(TreeDefinition treeDefinition)
{
Ensure.ArgumentNotNull(treeDefinition, "treeDefinition");
return(treeDefinition.Build(repo));
}
