dmidecode: add wrapper for `dmidecode -s`
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# Copyright 2023 Canonical, Ltd.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from subiquitycore.utils import run_command
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def dmidecode_get(key: str) -> str:
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"""Retrieve a value from `dmidecode -s`
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:param key: dmidecode(8) KEYWORD
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:returns: stripped string output, or empty string on failure
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"""
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sp = run_command(["dmidecode", "-s", key], check=False, text=True)
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if sp.returncode == 0:
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return sp.stdout.strip()
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return ""
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# Copyright 2023 Canonical, Ltd.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import unittest
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from subprocess import CompletedProcess
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from unittest import mock
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from subiquity.common.dmidecode import dmidecode_get
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class TestDmidecode(unittest.TestCase):
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@mock.patch("subiquity.common.dmidecode.run_command")
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def test_fail(self, run_cmd):
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run_cmd.return_value = CompletedProcess([], 1)
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self.assertEqual("", dmidecode_get("invalid-key"))
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@mock.patch("subiquity.common.dmidecode.run_command")
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def test_poweredge(self, run_cmd):
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expected = "PowerEdge R6525"
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run_cmd.return_value = CompletedProcess([], 0, stdout=expected)
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self.assertEqual(expected, dmidecode_get("system-product-name"))
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