ostree/tests/syslinux-entries-crosscheck.py
Colin Walters 20bf7692a9 tests: Add a crosscheck for syslinux bootloader config generation
And actually wire this one up in admin-test.sh.
2015-05-28 14:21:30 -04:00

108 lines
3.5 KiB
Python
Executable File

#!/usr/bin/python
#
# Copyright (C) 2015 Red Hat
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
import os
import sys
if len(sys.argv) == 1:
sysroot = ''
else:
sysroot = sys.argv[1]
loaderpath = sysroot + '/boot/loader/entries'
syslinuxpath = sysroot + '/boot/syslinux/syslinux.cfg'
def fatal(msg):
sys.stderr.write(msg)
sys.stderr.write('\n')
sys.exit(1)
def compare_entries_descending(a, b):
return int(b['version']) - int(a['version'])
def get_ostree_option(optionstring):
for o in optionstring.split():
if o.startswith('ostree='):
return o[8:]
raise ValueError('ostree= not found')
entries = []
syslinux_entries = []
# Parse loader configs
for fname in os.listdir(loaderpath):
path = os.path.join(loaderpath, fname)
with open(path) as f:
entry = {}
for line in f:
line = line.strip()
if (line == '' or line.startswith('#')):
continue
s = line.find(' ')
assert s > 0
k = line[0:s]
v = line[s+1:]
entry[k] = v
entries.append(entry)
entries.sort(compare_entries_descending)
# Parse SYSLINUX config
with open(syslinuxpath) as f:
in_ostree_config = False
syslinux_entry = None
syslinux_default = None
for line in f:
line = line.strip()
if line.startswith('DEFAULT '):
if syslinux_entry is not None:
syslinux_default = line.split(' ', 1)[1]
elif line.startswith('LABEL '):
if syslinux_entry is not None:
syslinux_entries.append(syslinux_entry)
syslinux_entry = {}
syslinux_entry['title'] = line.split(' ', 1)[1]
elif line.startswith('KERNEL '):
syslinux_entry['linux'] = line.split(' ', 1)[1]
elif line.startswith('INITRD '):
syslinux_entry['initrd'] = line.split(' ', 1)[1]
elif line.startswith('APPEND '):
syslinux_entry['options'] = line.split(' ', 1)[1]
if syslinux_entry is not None:
syslinux_entries.append(syslinux_entry)
if len(entries) != len(syslinux_entries):
fatal("Found {0} loader entries, but {1} SYSLINUX entries\n".format(len(entries), len(syslinux_entries)))
def assert_matches_key(a, b, key):
aval = a[key]
bval = b[key]
if aval != bval:
fatal("Mismatch on {0}: {1} != {2}".format(key, aval, bval))
for i,(entry,syslinuxentry) in enumerate(zip(entries, syslinux_entries)):
assert_matches_key(entry, syslinuxentry, 'linux')
assert_matches_key(entry, syslinuxentry, 'initrd')
entry_ostree = get_ostree_option(entry['options'])
syslinux_ostree = get_ostree_option(syslinuxentry['options'])
if entry_ostree != syslinux_ostree:
fatal("Mismatch on ostree option: {0} != {1}".format(entry_ostree, syslinux_ostree))
sys.stdout.write('SYSLINUX configuration validated\n')
sys.exit(0)