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106 lines
3.3 KiB
106 lines
3.3 KiB
# -*- coding: utf-8 -*-
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# Copyright 2015-2016 Mir Calculate. http://www.calculate-linux.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys
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from calculate.lib.utils.files import getProgPath, process
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_ = lambda x: x
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from calculate.lib.cl_lang import setLocalTranslate
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setLocalTranslate('cl_lib3', sys.modules[__name__])
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class GrubError(Exception):
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pass
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class GrubCommand(object):
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def __init__(self):
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self.grub_probe = getProgPath('/usr/sbin/grub-probe')
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self.grub_mkrelpath = getProgPath('/usr/sbin/grub-mkrelpath')
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def get_relpath(self, fn):
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p = process(self.grub_mkrelpath, fn)
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if p.success():
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return p.read().strip()
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else:
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raise GrubError(str(p.readerr()))
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def get_fs(self, fn=None, dev=None):
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if dev is not None:
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p = process(self.grub_probe, "--device", "--target=fs", dev)
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else:
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p = process(self.grub_probe, "--target=fs", fn)
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if p.success():
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return p.read().strip()
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else:
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raise GrubError(str(p.readerr()))
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def _get_probe(self, fn=None, dev=None, target=None):
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if dev is not None:
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p = process(self.grub_probe, "--device", "--target=%s" % target,
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dev)
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else:
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p = process(self.grub_probe, "--target=%s" % target, fn)
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if p.success():
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return p.read().strip()
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else:
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raise GrubError(str(p.readerr()))
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def get_filesystem(self, fn=None, dev=None):
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"""
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Получить файловую систему
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"""
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return self._get_probe(fn=fn, dev=dev, target="fs")
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def get_device(self, fn=None, dev=None):
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"""
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Получить раздел (/dev/sda5)
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"""
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return self._get_probe(fn=fn, dev=dev, target="device")
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def get_disk(self, fn=None, dev=None):
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"""
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Получить диск (/dev/sda)
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"""
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return self._get_probe(fn=fn, dev=dev, target="disk")
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def get_grub_drive(self, fn=None, dev=None):
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"""
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Получить grub название раздела (hd0,gpt5)
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"""
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return self._get_probe(fn=fn, dev=dev, target="drive")
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def get_uuid(self, fn=None, dev=None):
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return self._get_probe(fn=fn, dev=dev, target="fs_uuid")
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def get_abstraction(self, fn=None, dev=None):
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return self._get_probe(fn=fn, dev=dev, target="abstraction")
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def is_lvm(self, fn=None, dev=None):
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return self.get_abstraction(fn=fn, dev=dev) == "lvm"
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def is_available(self, fn=None, dev=None):
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"""
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Устройство или путь доступны для grub
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"""
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try:
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self.get_fs(fn=fn, dev=dev)
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return True
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except GrubError:
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return False
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