45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
import os
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import subprocess
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import logging
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logger = logging.getLogger(__name__)
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def eject_device(device):
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"""Eject the given device."""
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logger.debug("ejecting device %s", device)
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try:
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# `eject device` prints nothing to stdout
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subprocess.check_output(['eject', device], stderr=subprocess.STDOUT)
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except subprocess.CalledProcessError as e:
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logger.warning("command '%s' returned with exit code '%d' (%s)",
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' '.join(e.cmd), e.returncode, e.output.rstrip())
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def load_device(device):
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"""Load the given device."""
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logger.debug("loading (eject -t) device %s", device)
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try:
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# `eject -t device` prints nothing to stdout
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subprocess.check_output(['eject', '-t', device],
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stderr=subprocess.STDOUT)
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except subprocess.CalledProcessError as e:
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logger.warning("command '%s' returned with exit code '%d' (%s)",
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' '.join(e.cmd), e.returncode, e.output.rstrip())
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def unmount_device(device):
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"""
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Unmount the given device if it is mounted.
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This usually happens with automounted data tracks.
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If the given device is a symlink, the target will be checked.
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"""
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device = os.path.realpath(device)
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logger.debug('possibly unmount real path %r', device)
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proc = open('/proc/mounts').read()
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if device in proc:
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print('Device %s is mounted, unmounting' % device)
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os.system('umount %s' % device)
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