private AbsolutePathTranslation Calculate()
{
if (AncestorSource.Equals(AncestorDestination))
{
throw new InvalidOperationException(
string.Format(
"An attempt was made to calculate the path if a file (\"{0}\") was copied from \"{1}\" to \"{2}\". It is illegal to have the destination and source directories be the same, which is true in this case.",
AbsoluteAbsolutePath, AncestorSource, AncestorDestination));
}
if (!AbsoluteAbsolutePath.IsDescendantOf(AncestorSource))
{
throw new InvalidOperationException(
string.Format(
"The path \"{2}\" cannot be copied to \"{1}\" because the path isn't under the source path: \"{0}\"",
AncestorSource, AncestorDestination, AbsoluteAbsolutePath));
}
if (AncestorSource.Equals(AbsoluteAbsolutePath))
{
return(new AbsolutePathTranslation(AncestorSource, AncestorDestination, IoService));
}
var relativePath = AbsoluteAbsolutePath.RelativeTo(AncestorSource);
var pathToBeCopiedDestination = AncestorDestination / relativePath;
return(new AbsolutePathTranslation(AbsoluteAbsolutePath, pathToBeCopiedDestination, IoService));
}
public override int GetHashCode()
{
unchecked
{
var hashCode = AncestorDestination != null?AncestorDestination.GetHashCode() : 0;
hashCode = (hashCode * 397) ^ (AncestorSource != null ? AncestorSource.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (AbsoluteAbsolutePath != null ? AbsoluteAbsolutePath.GetHashCode() : 0);
return(hashCode);
}
}
public override string ToString()
{
return(string.Format("Translate {0} from {1} to {2}",
AncestorSource.TryGetNonCommonDescendants(Source).Value.Item2.OriginalString, AncestorSource,
AncestorDestination));
}