Aptdaemon 0.30

API CHANGES 0.30

* client Python module:

  - Change order of error_handler and reply_handler in the AptTransaction.run
    method to be in sync with the other methods

  - Add the dependencies, download and space attribute and the corresponding
    *-changed signal to AptTransaction, see interface changes below

  - Add a new AptTransaction.simulate() method, see interface changes below

  - The AptDaemonError stored in client.AptTransaction.error was replaced by
    a errors.TransactionFailed error. The APtDaemonError has been removed
    from the client module.

  - The DBus exception will be converted to native ones which are shared
    with the daemon. E.g. The DBusException with the error name
    "org.debian.apt.TransactionRoleAlreadySet" will be a
    TransactionRoleAlreadySet instance instead. This makes error handling
    easier since you can use try/except without having to compare the
    _dbus_error_name attributes.

* errors Python modules:

  - Rename APTDError to AptDaemonError because of readabilty

  - Add convert_dbus_exception decorator which converts DBus exception
    raised in a function to native ones. Also takes asynchrous calls
    into account.

  - Move NotAuthorizedError from policykit1 to the errors module

* enums Python module:

  - Use strings instead of integers for STATUS_*, EXIT_*, ROLE_* and ERROR_*
    enum. See interface changes for additional information

  - Add new enum EXIT_UNFINISHED

* org.debian.aptdaemon.transaction D-Bus interface:

  - The Exit, Status, Role and Error property and the Finished signal now
    use strings for the enums. This helps to make debugging a lot easier.

  - Add Simulate method which calculates the dependencies, the download size
    and the to be used disk space of the transaction. Furthermore it raises
    a "org.debian.aptdaemon.errors.TransactionFailed" if the transaction
    could not be performed.

    The Simulate call also takes all previously queued or currently running
    transactions into account. So you can simulate the removal a package
    if the installation of it is still in the queue.

  - Add new properties Dependencies, Download and Space, see above.