/// <summary>
/// Add a tag file if it does not already exist. If the tag
/// file already exists then it is NOT overwritten.
/// </summary>
/// <param name="tag">An object that represents the tag
/// file on the file system.</param>
/// <returns>The tag object.</returns>
public Tag AddTag (Tag tag) {
try {
// check if the root exists, if so it does not get modified
return this.FetchTag(tag.ParentDir.FullName);
} catch (CvsFileNotFoundException) {
// if the repository does not exist then add it
this.WriteToFile(tag);
// TODO: Remove this, just verifying the write operation
return this.FetchTag(tag.ParentDir.FullName);
}
}
/// <summary>
/// Create a cvs file object given the full path and line of the file.
/// </summary>
/// <param name="file"></param>
/// <param name="line"></param>
/// <returns></returns>
public ICvsFile CreateCvsObject (FileInfo file, string line) {
ICvsFile entry;
if (!System.Enum.IsDefined(typeof(FileType), file.Name)) {
throw new UnsupportedFileTypeException(string.Format("Unknown cvs file type: {0}",
file.Name));
}
switch ((FileType)Enum.Parse(typeof(FileType), file.Name, true)) {
case (FileType.Entries): {
entry = new Entry(file, line);
break;
}
case (FileType.Repository):{
entry = new Repository (file, line);
break;
}
case (FileType.Root):{
entry = new Root (file, line);
break;
}
case (FileType.Tag):{
entry = new Tag (file, line);
break;
}
default:{
StringBuilder msg = new StringBuilder();
msg.Append("Unknown file type specified.");
msg.Append("fileType=[").Append(file.Name).Append("]");
throw new UnsupportedFileTypeException (msg.ToString());
}
}
return entry;
}