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46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
# Copyright 2015 Adafruit Industries.
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# Author: Tony DiCola
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# License: GNU GPLv2, see LICENSE.txt
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from usb_drive_mounter import USBDriveMounter
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class USBDriveReader(object):
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def __init__(self, config):
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"""Create an instance of a file reader that uses the USB drive mounter
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service to keep track of attached USB drives and automatically mount
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them for reading videos.
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"""
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self._load_config(config)
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self._mounter = USBDriveMounter(root=self._mount_path,
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readonly=self._readonly)
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self._mounter.start_monitor()
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def _load_config(self, config):
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self._mount_path = config.get('usb_drive', 'mount_path')
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self._readonly = config.getboolean('usb_drive', 'readonly')
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def search_paths(self):
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"""Return a list of paths to search for files. Will return a list of all
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mounted USB drives.
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"""
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self._mounter.mount_all()
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return [self._mount_path]
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def is_changed(self):
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"""Return true if the file search paths have changed, like when a new
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USB drive is inserted.
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"""
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return self._mounter.poll_changes()
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def idle_message(self):
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"""Return a message to display when idle and no files are found."""
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return 'Insert USB drive with compatible movies.'
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def create_file_reader(config):
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"""Create new file reader based on mounting USB drives."""
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return USBDriveReader(config)
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