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Cmdline fact uefi 23647 (#25446)

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* Fix ansible_cmdline initrd fact for UEFI

UEFI cmdline paths use \ path sep which would
get munged by cmdline fact collection.

* Make CmdLineFactCollector easier to test

extract the parsing of the /proc/cmdline content to
_parse_proc_cmdline()

add a wrapper method for get_file_content _get_proc_cmdline()

Add unit tests of _parse_proc_cmdline based on examples
from issue #23647

Fixes #23647
This commit is contained in:
Adrian Likins 2017-06-08 16:03:29 -04:00 committed by GitHub
parent 931d8d7dad
commit f4128746d3
2 changed files with 62 additions and 13 deletions
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32
lib/ansible/module_utils/facts/system/cmdline.py
View file

@ -27,24 +27,30 @@ class CmdLineFactCollector(BaseFactCollector):
name = 'cmdline'
_fact_ids = set()
def _get_proc_cmdline(self):
return get_file_content('/proc/cmdline')
def _parse_proc_cmdline(self, data):
cmdline_dict = {}
try:
for piece in shlex.split(data, posix=False):
item = piece.split('=', 1)
if len(item) == 1:
cmdline_dict[item[0]] = True
else:
cmdline_dict[item[0]] = item[1]
except ValueError:
pass
return cmdline_dict
def collect(self, module=None, collected_facts=None):
cmdline_facts = {}
data = get_file_content('/proc/cmdline')
data = self._get_proc_cmdline()
if not data:
return cmdline_facts
cmdline_facts['cmdline'] = {}
try:
for piece in shlex.split(data):
item = piece.split('=', 1)
if len(item) == 1:
cmdline_facts['cmdline'][item[0]] = True
else:
cmdline_facts['cmdline'][item[0]] = item[1]
except ValueError:
pass
cmdline_facts['cmdline'] = self._parse_proc_cmdline(data)
return cmdline_facts

43
test/units/module_utils/facts/test_collectors.py
View file

@ -119,6 +119,49 @@ class TestCmdLineFacts(BaseFactsTest):
fact_namespace = 'ansible_cmdline'
collector_class = CmdLineFactCollector
def test_parse_proc_cmdline_uefi(self):
uefi_cmdline = r'initrd=\70ef65e1a04a47aea04f7b5145ea3537\4.10.0-19-generic\initrd root=UUID=50973b75-4a66-4bf0-9764-2b7614489e64 ro quiet'
expected = {'initrd': r'\70ef65e1a04a47aea04f7b5145ea3537\4.10.0-19-generic\initrd',
'root': 'UUID=50973b75-4a66-4bf0-9764-2b7614489e64',
'quiet': True,
'ro': True}
fact_collector = self.collector_class()
facts_dict = fact_collector._parse_proc_cmdline(uefi_cmdline)
self.assertDictEqual(facts_dict, expected)
def test_parse_proc_cmdline_fedora(self):
cmdline_fedora = r'BOOT_IMAGE=/vmlinuz-4.10.16-200.fc25.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/root rd.luks.uuid=luks-c80b7537-358b-4a07-b88c-c59ef187479b rd.lvm.lv=fedora/swap rhgb quiet LANG=en_US.UTF-8' # noqa
expected = {'BOOT_IMAGE': '/vmlinuz-4.10.16-200.fc25.x86_64',
'LANG': 'en_US.UTF-8',
'quiet': True,
'rd.luks.uuid': 'luks-c80b7537-358b-4a07-b88c-c59ef187479b',
'rd.lvm.lv': 'fedora/swap',
'rhgb': True,
'ro': True,
'root': '/dev/mapper/fedora-root'}
fact_collector = self.collector_class()
facts_dict = fact_collector._parse_proc_cmdline(cmdline_fedora)
self.assertDictEqual(facts_dict, expected)
def test_parse_proc_cmdline_dup_console(self):
example = r'BOOT_IMAGE=/boot/vmlinuz-4.4.0-72-generic root=UUID=e12e46d9-06c9-4a64-a7b3-60e24b062d90 ro console=tty1 console=ttyS0'
# FIXME: Two 'console' keywords? Using a dict for the fact value here loses info. Currently the 'last' one wins
expected = {'BOOT_IMAGE': '/boot/vmlinuz-4.4.0-72-generic',
'root': 'UUID=e12e46d9-06c9-4a64-a7b3-60e24b062d90',
'ro': True,
'console': 'ttyS0'}
fact_collector = self.collector_class()
facts_dict = fact_collector._parse_proc_cmdline(example)
# TODO: fails because we lose a 'console'
self.assertDictEqual(facts_dict, expected)
class TestDistributionFacts(BaseFactsTest):
__test__ = True