3e18c070cd
Support images without dom0 support. svn path=/dists/trunk/linux-2.6/; revision=9413
212 lines
6.4 KiB
Python
212 lines
6.4 KiB
Python
import os, os.path, re, sys, textwrap
|
|
|
|
__all__ = [
|
|
'ConfigParser',
|
|
'ConfigReaderCore',
|
|
]
|
|
|
|
_marker = object()
|
|
|
|
class SchemaItemBoolean(object):
|
|
def __call__(self, i):
|
|
i = i.strip().lower()
|
|
if i in ("true", "1"):
|
|
return True
|
|
if i in ("false", "0"):
|
|
return False
|
|
raise Error
|
|
|
|
class SchemaItemList(object):
|
|
def __init__(self, type = "\s+"):
|
|
self.type = type
|
|
|
|
def __call__(self, i):
|
|
i = i.strip()
|
|
if not i:
|
|
return []
|
|
return [j.strip() for j in re.split(self.type, i)]
|
|
|
|
class ConfigReaderCore(dict):
|
|
config_name = "defines"
|
|
|
|
schemas = {
|
|
'base': {
|
|
'arches': SchemaItemList(),
|
|
'enabled': SchemaItemBoolean(),
|
|
'featuresets': SchemaItemList(),
|
|
'flavours': SchemaItemList(),
|
|
'modules': SchemaItemBoolean(),
|
|
},
|
|
'image': {
|
|
'configs': SchemaItemList(),
|
|
'initramfs': SchemaItemBoolean(),
|
|
'initramfs-generators': SchemaItemList(),
|
|
},
|
|
'relations': {
|
|
},
|
|
'xen': {
|
|
'dom0-support': SchemaItemBoolean(),
|
|
'versions': SchemaItemList(),
|
|
}
|
|
}
|
|
|
|
def __init__(self, dirs = []):
|
|
self._dirs = dirs
|
|
self._read_base()
|
|
|
|
def _read_arch(self, arch):
|
|
config = ConfigParser(self.schemas)
|
|
config.read(self.get_files("%s/%s" % (arch, self.config_name)))
|
|
|
|
featuresets = config['base',].get('featuresets', [])
|
|
flavours = config['base',].get('flavours', [])
|
|
|
|
for section in iter(config):
|
|
if section[0] in featuresets:
|
|
real = (section[-1], arch, section[0])
|
|
elif len(section) > 1:
|
|
real = (section[-1], arch, None) + section[:-1]
|
|
else:
|
|
real = (section[-1], arch) + section[:-1]
|
|
s = self.get(real, {})
|
|
s.update(config[section])
|
|
self[tuple(real)] = s
|
|
|
|
for featureset in featuresets:
|
|
self._read_arch_featureset(arch, featureset)
|
|
|
|
if flavours:
|
|
base = self['base', arch]
|
|
featuresets.insert(0, 'none')
|
|
base['featuresets'] = featuresets
|
|
del base['flavours']
|
|
self['base', arch] = base
|
|
self['base', arch, 'none'] = {'flavours': flavours, 'implicit-flavour': True}
|
|
|
|
def _read_arch_featureset(self, arch, featureset):
|
|
config = ConfigParser(self.schemas)
|
|
config.read(self.get_files("%s/%s/%s" % (arch, featureset, self.config_name)))
|
|
|
|
flavours = config['base',].get('flavours', [])
|
|
|
|
for section in iter(config):
|
|
real = (section[-1], arch, featureset) + section[:-1]
|
|
s = self.get(real, {})
|
|
s.update(config[section])
|
|
self[tuple(real)] = s
|
|
|
|
def _read_base(self):
|
|
config = ConfigParser(self.schemas)
|
|
config.read(self.get_files(self.config_name))
|
|
|
|
arches = config['base',]['arches']
|
|
featuresets = config['base',]['featuresets']
|
|
|
|
for section in iter(config):
|
|
if section[0].startswith('featureset-'):
|
|
real = (section[-1], None, section[0].lstrip('featureset-'))
|
|
else:
|
|
real = (section[-1],) + section[1:]
|
|
self[real] = config[section]
|
|
|
|
for arch in arches:
|
|
self._read_arch(arch)
|
|
for featureset in featuresets:
|
|
self._read_featureset(featureset)
|
|
|
|
def _read_featureset(self, featureset):
|
|
config = ConfigParser(self.schemas)
|
|
config.read(self.get_files("featureset-%s/%s" % (featureset, self.config_name)))
|
|
|
|
for section in iter(config):
|
|
real = (section[-1], None, featureset)
|
|
s = self.get(real, {})
|
|
s.update(config[section])
|
|
self[real] = s
|
|
|
|
def get_files(self, name):
|
|
return [os.path.join(i, name) for i in self._dirs if i]
|
|
|
|
def merge(self, section, arch = None, featureset = None, flavour = None):
|
|
ret = {}
|
|
ret.update(self.get((section,), {}))
|
|
if featureset:
|
|
ret.update(self.get((section, None, featureset), {}))
|
|
if arch:
|
|
ret.update(self.get((section, arch), {}))
|
|
if arch and featureset:
|
|
ret.update(self.get((section, arch, featureset), {}))
|
|
if arch and featureset and flavour:
|
|
ret.update(self.get((section, arch, None, flavour), {}))
|
|
ret.update(self.get((section, arch, featureset, flavour), {}))
|
|
return ret
|
|
|
|
class ConfigParser(object):
|
|
__slots__ = '_config', 'schemas'
|
|
|
|
def __init__(self, schemas):
|
|
self.schemas = schemas
|
|
|
|
from ConfigParser import RawConfigParser
|
|
self._config = config = RawConfigParser()
|
|
|
|
def __getitem__(self, key):
|
|
return self._convert()[key]
|
|
|
|
def __iter__(self):
|
|
return iter(self._convert())
|
|
|
|
def __str__(self):
|
|
return '<%s(%s)>' % (self.__class__.__name__, self._convert())
|
|
|
|
def _convert(self):
|
|
ret = {}
|
|
for section in self._config.sections():
|
|
data = {}
|
|
for key, value in self._config.items(section):
|
|
data[key] = value
|
|
s1 = section.split('_')
|
|
if s1[-1] in self.schemas:
|
|
ret[tuple(s1)] = self.SectionSchema(data, self.schemas[s1[-1]])
|
|
else:
|
|
ret[(section,)] = self.Section(data)
|
|
return ret
|
|
|
|
def keys(self):
|
|
return self._convert().keys()
|
|
|
|
def read(self, data):
|
|
return self._config.read(data)
|
|
|
|
class Section(dict):
|
|
def __init__(self, data):
|
|
super(ConfigParser.Section, self).__init__(data)
|
|
|
|
def __str__(self):
|
|
return '<%s(%s)>' % (self.__class__.__name__, self._data)
|
|
|
|
class SectionSchema(Section):
|
|
__slots__ = ()
|
|
|
|
def __init__(self, data, schema):
|
|
for key in data.keys():
|
|
try:
|
|
data[key] = schema[key](data[key])
|
|
except KeyError: pass
|
|
super(ConfigParser.SectionSchema, self).__init__(data)
|
|
|
|
if __name__ == '__main__':
|
|
import sys
|
|
config = ConfigReaderCore(['debian/config'])
|
|
sections = config.keys()
|
|
sections.sort()
|
|
for section in sections:
|
|
print "[%s]" % (section,)
|
|
items = config[section]
|
|
items_keys = items.keys()
|
|
items_keys.sort()
|
|
for item in items:
|
|
print "%s: %s" % (item, items[item])
|
|
print
|
|
|