Function should_check_for_updates

dangerzone/updater/releases.py:138–174

Determine if we can check for release updates based on settings and user prefs. Note that this method only checks if the user has expressed an interest for learning about new updates, and not whether we should actually make an update check. Those two things are distinct, actually. For e

(settings: Settings)

def should_check_for_updates(settings: Settings) -> bool:
    """Determine if we can check for release updates based on settings and user prefs.

    Note that this method only checks if the user has expressed an interest for
    learning about new updates, and not whether we should actually make an update
    check. Those two things are distinct, actually. For example:

    * A user may have expressed that they want to learn about new updates.
    * A previous update check may have found out that there's a new version out.
    * Thus we will always show to the user the cached info about the new version,
      and won't make a new update check.
    """
    check = settings.get("updater_check_all")

    if settings.get("updater_last_check") is None:
        log.debug("Dangerzone is running for the first time, updates are stalled")
        settings.set("updater_last_check", 0, autosave=True)
        # If no container is bundled and none is installed, prompt the user
        # to enable updates immediately, otherwise Dangerzone won't work.
        if not is_container_tar_bundled() and not is_container_image_installed():
            log.debug("No container available, prompting user to enable updates")
            raise errors.NeedUserInputNoContainer()
        return False

    if check is False or check is None:
        if check is None:
            log.debug("User has not been asked yet for update checks")

        if not is_container_tar_bundled() and not is_container_image_installed():
            log.debug("No container available, prompting user to enable updates")
            raise errors.NeedUserInputNoContainer()
        raise errors.NeedUserInput()
    elif not check:
        log.debug("User has expressed that they don't want to check for updates")
        return False

    return True


def check_for_updates(