def __get_prefs(self):
'''
Processes each file in self.prefs_list
Returns-->OrderedDict
'''
ret = OrderedDict()
for f in self.prefs_list:
try:
parser = CfgParser(f=f, undef=False)
if not parser.contents:
continue
d = parser.prefs_dict
ntd = parser.ntd
for (k, v) in d.items():
if k in ret and ret[k] != v:
msg = 'Redefinition of %s in %s old(%s) new(%s)' % (
k,
f,
str(ret[k]),
str(v),
)
debug(msg)
if k in ntd:
msg = '%s previously defined in %s (%d)' % (
k, ntd[k].f, ntd[k].num)
debug(msg)
ret[k] = v
except Exception as e:
debug(format_exc(e, msg='CfgParser(%s)' % (f, )))
continue
return ret
def __contents(self):
'''Returns-->str'''
try:
(contents, _) = file_contents(self.f, debug=DEBUG_SINGLETON)
if not contents.endswith('\n'):
contents += '\n'
return contents
except Exception as e:
debug(format_exc(e))
return ''
def update(self, d, silent=False):
'''
d-->OrderedDict
silent-->bool: If True, does not produce any output
(Over)writes cfg updating / adding key-value pairs from d
Returns-->bool: success
'''
try:
to_change = self.compare(d=d)
out_lines = []
unchanged = dict.fromkeys([LINE_EMPTY, LINE_COMMENT])
if not to_change:
if not silent:
print('All your config prefs are already set')
return True
if not silent:
print('Setting following kernel prefs:')
if self.prefs_dict:
for nt in self.ntl:
if nt.lt == LINE_INVALID:
continue # ignore invalid lines
if nt.lt in unchanged:
out_lines.append(nt.raw)
continue
# LINE_SET_KV or LINE_UNDEF_COMMENT
(k, v) = (nt.k, nt.v)
if k in to_change:
v = to_change[k][0]
if not silent:
print(' %s=%s' % (k, v))
del to_change[k]
out_lines.append('%s%s=%s' % (_CONFIG, k, v))
# Now write what remains in to_change (completely missing in cfg)
for (k, (v1, v2)) in to_change.items():
if not silent:
print(' %s=%s' % (k, v1))
out_lines.append('%s%s=%s' % (_CONFIG, k, v1))
with open(self.config, mode='w', encoding=self.encoding) as f:
for l in out_lines:
f.write(l + '\n')
f.flush()
f.close()
self.init() # re-read
return True
except Exception as e:
print(format_exc(e))
return False
def init(self):
'''
Sets instance vars
'''
self.config = os.path.join(BUILD_DIR, '.config')
f = os.path.join(BUILD_DIR, '.config')
try:
parser = CfgParser(f=f, undef=True)
except Exception as e:
debug(format_exc(e, msg='CfgParser(%s)' % (f, )))
raise
self.contents = parser.contents
self.lines = parser.lines
self.ntl = parser.ntl
self.prefs_dict = parser.prefs_dict