blob: c9ee5f2b4ae483032cbd75b0e08d2350a4f623f9 [file] [log] [blame]
#!/usr/bin/python
import sys
import os
import time
import ConfigParser
import tempfile
import codecs
from StringIO import StringIO
from PLC.Xml import Xml
default_config = \
"""
"""
def isbool(v):
return v.lower() in ("true", "false")
def str2bool(v):
return v.lower() in ("true", "1")
class Config:
def __init__(self, config_file='/etc/planetlab/plcapi_config'):
self._files = []
self.config_path = os.path.dirname(config_file)
self.config = ConfigParser.ConfigParser()
self.filename = config_file
if not os.path.isfile(self.filename):
self.create(self.filename)
self.load(self.filename)
def _header(self):
header = """
DO NOT EDIT. This file was automatically generated at
%s from:
%s
""" % (time.asctime(), os.linesep.join(self._files))
# Get rid of the surrounding newlines
return header.strip().split(os.linesep)
def create(self, filename):
if not os.path.exists(os.path.dirname(filename)):
os.makedirs(os.path.dirname(filename))
configfile = open(filename, 'w')
configfile.write(default_config)
configfile.close()
def load(self, filename):
if filename:
try:
self.config.read(filename)
except ConfigParser.MissingSectionHeaderError:
if filename.endswith('.xml'):
self.load_xml(filename)
else:
self.load_shell(filename)
self._files.append(filename)
self.set_attributes()
def load_xml(self, filename):
xml = XML(filename)
categories = xml.xpath('//configuration/variables/category')
for category in categories:
section_name = category.get('id')
if not self.config.has_section(section_name):
self.config.add_section(section_name)
options = category.xpath('./variablelist/variable')
for option in options:
option_name = option.get('id')
value = option.xpath('./value')[0].text
if not value:
value = ""
self.config.set(section_name, option_name, value)
def load_shell(self, filename):
f = open(filename, 'r')
for line in f:
try:
if line.startswith('#'):
continue
parts = line.strip().split("=")
if len(parts) < 2:
continue
option = parts[0]
value = parts[1].replace('"', '').replace("'","")
section, var = self.locate_varname(option, strict=False)
if section and var:
self.set(section, var, value)
except:
pass
f.close()
def locate_varname(self, varname, strict=True):
varname = varname.lower()
sections = self.config.sections()
section_name = ""
var_name = ""
for section in sections:
if varname.startswith(section.lower()) and len(section) > len(section_name):
section_name = section.lower()
var_name = varname.replace(section_name, "")[1:]
if strict and not self.config.has_option(section_name, var_name):
raise ConfigParser.NoOptionError(var_name, section_name)
return (section_name, var_name)
def set_attributes(self):
sections = self.config.sections()
for section in sections:
for item in self.config.items(section):
name = "%s_%s" % (section, item[0])
value = item[1]
if isbool(value):
value = str2bool(value)
elif value.isdigit():
value = int(value)
setattr(self, name, value)
setattr(self, name.upper(), value)
def verify(self, config1, config2, validate_method):
return True
def validate_type(self, var_type, value):
return True
@staticmethod
def is_xml(config_file):
try:
x = Xml(config_file)
return True
except:
return False
@staticmethod
def is_ini(config_file):
try:
c = ConfigParser.ConfigParser()
c.read(config_file)
return True
except ConfigParser.MissingSectionHeaderError:
return False
def dump(self, sections = []):
sys.stdout.write(output_python())
def output_python(self, encoding = "utf-8"):
buf = codecs.lookup(encoding)[3](StringIO())
buf.writelines(["# " + line + os.linesep for line in self._header()])
for section in self.sections():
buf.write("[%s]%s" % (section, os.linesep))
for (name,value) in self.items(section):
buf.write("%s=%s%s" % (name,value,os.linesep))
buf.write(os.linesep)
return buf.getvalue()
def output_shell(self, show_comments = True, encoding = "utf-8"):
"""
Return variables as a shell script.
"""
buf = codecs.lookup(encoding)[3](StringIO())
buf.writelines(["# " + line + os.linesep for line in self._header()])
for section in self.sections():
for (name,value) in self.items(section):
# bash does not have the concept of NULL
if value:
option = "%s_%s" % (section.upper(), name.upper())
if isbool(value):
value = str(str2bool(value))
elif not value.isdigit():
value = '"%s"' % value
buf.write(option + "=" + value + os.linesep)
return buf.getvalue()
def output_php(self, encoding = "utf-8"):
"""
Return variables as a PHP script.
"""
buf = codecs.lookup(encoding)[3](StringIO())
buf.write("<?php" + os.linesep)
buf.writelines(["// " + line + os.linesep for line in self._header()])
for section in self.sections():
for (name,value) in self.items(section):
option = "%s_%s" % (section, name)
buf.write(os.linesep)
buf.write("// " + option + os.linesep)
if value is None:
value = 'NULL'
buf.write("define('%s', %s);" % (option, value) + os.linesep)
buf.write("?>" + os.linesep)
return buf.getvalue()
def output_xml(self, encoding = "utf-8"):
pass
def output_variables(self, encoding="utf-8"):
"""
Return list of all variable names.
"""
buf = codecs.lookup(encoding)[3](StringIO())
for section in self.sections():
for (name,value) in self.items(section):
option = "%s_%s" % (section,name)
buf.write(option + os.linesep)
return buf.getvalue()
pass
def write(self, filename=None):
if not filename:
filename = self.filename
configfile = open(filename, 'w')
self.config.write(configfile)
def save(self, filename=None):
self.write(filename)
def __getattr__(self, attr):
return getattr(self.config, attr)
if __name__ == '__main__':
filename = None
if len(sys.argv) > 1:
filename = sys.argv[1]
config = Config(filename)
else:
config = Config()
config.dump()