Add or update an entry to the builder

Insert a new entry for filename in the builder with the given attributes.

If an entry named filename already exists, its attributes will be updated with the given ones.

The optional pointer out can be used to retrieve a pointer to the newly created/updated entry. Pass NULL if you do not need it. The pointer may not be valid past the next operation in this builder. Duplicate the entry if you want to keep it.

By default the entry that you are inserting will be checked for validity; that it exists in the object database and is of the correct type. If you do not want this behavior, set the GIT_OPT_ENABLE_STRICT_OBJECT_CREATION library option to false.