from io import StringIO
from optparse import OptionParser
-class ConfigurationException(Exception): pass
+
+class ConfigurationException(Exception):
+ pass
+
class PLCConfiguration:
"""
plc.save("/etc/planetlab/plc_config.xml")
"""
- def __init__(self, file = None):
+ def __init__(self, file=None):
impl = xml.dom.minidom.getDOMImplementation()
self._dom = impl.createDocument(None, "configuration", None)
self._variables = {}
if file is not None:
self.load(file)
-
def _get_text(self, node):
"""
Get the text of a text node.
return None
-
def _get_text_of_child(self, parent, name):
"""
Get the text of a (direct) child text node.
return None
-
def _set_text(self, node, data):
"""
Set the text of a text node.
text.data = data
node.appendChild(text)
-
def _set_text_of_child(self, parent, name, data):
"""
Set the text of a (direct) child text node.
self._set_text(child, data)
parent.appendChild(child)
-
def _category_element_to_dict(self, category_element):
"""
Turn a <category> element into a dictionary of its attributes
for node in category_element.childNodes:
if node.nodeType == node.ELEMENT_NODE and \
node.tagName in ['name', 'description']:
- category[node.tagName] = self._get_text_of_child(category_element, node.tagName)
+ category[node.tagName] = self._get_text_of_child(
+ category_element, node.tagName)
category['element'] = category_element
return category
-
def _variable_element_to_dict(self, variable_element):
"""
Turn a <variable> element into a dictionary of its attributes
for node in variable_element.childNodes:
if node.nodeType == node.ELEMENT_NODE and \
node.tagName in ['name', 'value', 'description']:
- variable[node.tagName] = self._get_text_of_child(variable_element, node.tagName)
+ variable[node.tagName] = self._get_text_of_child(
+ variable_element, node.tagName)
variable['element'] = variable_element
return variable
-
def _group_element_to_dict(self, group_element):
"""
Turn a <group> element into a dictionary of its attributes
for node in group_element.childNodes:
if node.nodeType == node.ELEMENT_NODE and \
node.tagName in ['id', 'name', 'default', 'description', 'uservisible']:
- group[node.tagName] = self._get_text_of_child(group_element, node.tagName)
+ group[node.tagName] = self._get_text_of_child(
+ group_element, node.tagName)
group['element'] = group_element
return group
-
def _packagereq_element_to_dict(self, packagereq_element):
"""
Turns a <packagereq> element into a dictionary of its attributes
return package
-
- def load(self, file = "/etc/planetlab/plc_config.xml"):
+ def load(self, file="/etc/planetlab/plc_config.xml"):
"""
Merge file into configuration store.
"""
for variablelist_element in category_element.getElementsByTagName('variablelist'):
for variable_element in variablelist_element.getElementsByTagName('variable'):
- variable = self._variable_element_to_dict(variable_element)
+ variable = self._variable_element_to_dict(
+ variable_element)
self.set(category, variable)
# Parse <comps> section
self.add_package(group, None)
for packagereq_element in group_element.getElementsByTagName('packagereq'):
- package = self._packagereq_element_to_dict(packagereq_element)
+ package = self._packagereq_element_to_dict(
+ packagereq_element)
self.add_package(group, package)
-
- def save(self, file = None):
+ def save(self, file=None):
"""
Write configuration store to file.
"""
variable_value = None
sources = (self, read, default)
for source in sources:
- (category_value, variable_value) = source.get(category_id,variable_id)
+ (category_value, variable_value) = source.get(
+ category_id, variable_id)
if variable_value != None:
- entry = validated_variables.get(category_id,[])
+ entry = validated_variables.get(category_id, [])
entry.append(variable_value['value'])
- validated_variables["%s_%s"%(category_id.upper(),variable_id.upper())]=entry
+ validated_variables["%s_%s" % (
+ category_id.upper(), variable_id.upper())] = entry
break
if variable_value == None:
- raise ConfigurationException("Cannot find %s_%s)" % \
+ raise ConfigurationException("Cannot find %s_%s)" %
(category_id.upper(),
variable_id.upper()))
return validated_variables
return (category, variable)
-
def delete(self, category_id, variable_id):
"""
Delete the specified variable from the specified category. If
variable['element'].parentNode.removeChild(variable['element'])
del variables[variable_id]
-
def set(self, category, variable):
"""
Add and/or update the specified variable. The 'id' fields are
"""
if ('id' not in category
- or not isinstance(category['id'], str)):
+ or not isinstance(category['id'], str)):
return
category_id = category['id'].lower()
for tag in ['name', 'description']:
if tag in category:
old_category[tag] = category[tag]
- self._set_text_of_child(old_category['element'], tag, category[tag])
+ self._set_text_of_child(
+ old_category['element'], tag, category[tag])
category_element = old_category['element']
else:
category_element.setAttribute('id', category_id)
for tag in ['name', 'description']:
if tag in category:
- self._set_text_of_child(category_element, tag, category[tag])
+ self._set_text_of_child(
+ category_element, tag, category[tag])
if self._dom.documentElement.getElementsByTagName('variables'):
- variables_element = self._dom.documentElement.getElementsByTagName('variables')[0]
+ variables_element = self._dom.documentElement.getElementsByTagName('variables')[
+ 0]
else:
variables_element = self._dom.createElement('variables')
self._dom.documentElement.appendChild(variables_element)
for attribute in ['type']:
if attribute in variable:
old_variable[attribute] = variable[attribute]
- old_variable['element'].setAttribute(attribute, variable[attribute])
+ old_variable['element'].setAttribute(
+ attribute, variable[attribute])
for tag in ['name', 'value', 'description']:
if tag in variable:
old_variable[tag] = variable[tag]
- self._set_text_of_child(old_variable['element'], tag, variable[tag])
+ self._set_text_of_child(
+ old_variable['element'], tag, variable[tag])
else:
# Merge into DOM
variable_element = self._dom.createElement('variable')
variable_element.setAttribute('id', variable_id)
for attribute in ['type']:
if attribute in variable:
- variable_element.setAttribute(attribute, variable[attribute])
+ variable_element.setAttribute(
+ attribute, variable[attribute])
for tag in ['name', 'value', 'description']:
if tag in variable:
- self._set_text_of_child(variable_element, tag, variable[tag])
+ self._set_text_of_child(
+ variable_element, tag, variable[tag])
if category_element.getElementsByTagName('variablelist'):
- variablelist_element = category_element.getElementsByTagName('variablelist')[0]
+ variablelist_element = category_element.getElementsByTagName('variablelist')[
+ 0]
else:
variablelist_element = self._dom.createElement('variablelist')
category_element.appendChild(variablelist_element)
variable['element'] = variable_element
variables[variable_id] = variable
-
- def locate_varname (self, varname):
+ def locate_varname(self, varname):
"""
Locates category and variable from a variable's (shell) name
for (category_id, (category, variables)) in self._variables.items():
for variable in list(variables.values()):
- (id, name, value, comments) = self._sanitize_variable(category_id, variable)
+ (id, name, value, comments) = self._sanitize_variable(
+ category_id, variable)
if (id == varname):
- return (category,variable)
- return (None,None)
+ return (category, variable)
+ return (None, None)
def get_package(self, group_id, package_name):
"""
return (group, package)
-
def delete_package(self, group_id, package_name):
"""
Deletes the specified variable from the specified category. If
package['element'].parentNode.removeChild(package['element'])
del packages[package_name]
-
def add_package(self, group, package):
"""
Add and/or update the specified package. The 'id' and 'name'
for tag in ['id', 'name', 'default', 'description', 'uservisible']:
if tag in group:
old_group[tag] = group[tag]
- self._set_text_of_child(old_group['element'], tag, group[tag])
+ self._set_text_of_child(
+ old_group['element'], tag, group[tag])
group_element = old_group['element']
else:
self._set_text_of_child(group_element, tag, group[tag])
if self._dom.documentElement.getElementsByTagName('comps'):
- comps_element = self._dom.documentElement.getElementsByTagName('comps')[0]
+ comps_element = self._dom.documentElement.getElementsByTagName('comps')[
+ 0]
else:
comps_element = self._dom.createElement('comps')
self._dom.documentElement.appendChild(comps_element)
for attribute in ['type']:
if attribute in package:
old_package[attribute] = package[attribute]
- old_package['element'].setAttribute(attribute, package[attribute])
+ old_package['element'].setAttribute(
+ attribute, package[attribute])
else:
# Merge into DOM
packagereq_element = TrimTextElement('packagereq')
self._set_text(packagereq_element, package_name)
for attribute in ['type']:
if attribute in package:
- packagereq_element.setAttribute(attribute, package[attribute])
+ packagereq_element.setAttribute(
+ attribute, package[attribute])
if group_element.getElementsByTagName('packagelist'):
- packagelist_element = group_element.getElementsByTagName('packagelist')[0]
+ packagelist_element = group_element.getElementsByTagName('packagelist')[
+ 0]
else:
packagelist_element = self._dom.createElement('packagelist')
group_element.appendChild(packagelist_element)
package['element'] = packagereq_element
packages[package_name] = package
-
def variables(self):
"""
Return all variables.
return self._variables
-
def packages(self):
"""
Return all packages.
return self._packages
-
def _sanitize_variable(self, category_id, variable):
assert 'id' in variable
# Prepend variable name with category label
return (id, name, value, comments)
-
def _header(self):
header = """
DO NOT EDIT. This file was automatically generated at
# Get rid of the surrounding newlines
return header.strip().split(os.linesep)
-
- def output_shell(self, show_comments = True, encoding = "utf-8"):
+ def output_shell(self, show_comments=True, encoding="utf-8"):
"""
Return variables as a shell script.
"""
for (category_id, (category, variables)) in self._variables.items():
for variable in list(variables.values()):
- (id, name, value, comments) = self._sanitize_variable(category_id, variable)
+ (id, name, value, comments) = self._sanitize_variable(
+ category_id, variable)
if show_comments:
buf.write(os.linesep)
if name is not None:
buf.write("# " + name + os.linesep)
if comments is not None:
- buf.writelines(["# " + line + os.linesep for line in comments])
+ buf.writelines(
+ ["# " + line + os.linesep for line in comments])
# bash does not have the concept of NULL
if value is not None:
buf.write(id + "=" + value + os.linesep)
return buf.getvalue()
-
- def output_php(self, encoding = "utf-8"):
+ def output_php(self, encoding="utf-8"):
"""
Return variables as a PHP script.
"""
for (category_id, (category, variables)) in self._variables.items():
for variable in list(variables.values()):
- (id, name, value, comments) = self._sanitize_variable(category_id, variable)
+ (id, name, value, comments) = self._sanitize_variable(
+ category_id, variable)
buf.write(os.linesep)
if name is not None:
buf.write("// " + name + os.linesep)
if comments is not None:
- buf.writelines(["// " + line + os.linesep for line in comments])
+ buf.writelines(
+ ["// " + line + os.linesep for line in comments])
if value is None:
value = 'NULL'
buf.write("define('%s', %s);" % (id, value) + os.linesep)
return buf.getvalue()
-
- def output_xml(self, encoding = "utf-8"):
+ def output_xml(self, encoding="utf-8"):
"""
Return variables in original XML format.
"""
buf = codecs.lookup(encoding)[3](StringIO())
- self._dom.writexml(buf, addindent = " ", indent = "", newl = "\n", encoding = encoding)
+ self._dom.writexml(buf, addindent=" ", indent="",
+ newl="\n", encoding=encoding)
return buf.getvalue()
-
- def output_variables(self, encoding = "utf-8"):
+ def output_variables(self, encoding="utf-8"):
"""
Return list of all variable names.
"""
for (category_id, (category, variables)) in self._variables.items():
for variable in list(variables.values()):
- (id, name, value, comments) = self._sanitize_variable(category_id, variable)
+ (id, name, value, comments) = self._sanitize_variable(
+ category_id, variable)
buf.write(id + os.linesep)
return buf.getvalue()
-
- def output_packages(self, encoding = "utf-8"):
+ def output_packages(self, encoding="utf-8"):
"""
Return list of all packages.
"""
return buf.getvalue()
-
- def output_groups(self, encoding = "utf-8"):
+ def output_groups(self, encoding="utf-8"):
"""
Return list of all package group names.
"""
return buf.getvalue()
-
- def output_comps(self, encoding = "utf-8"):
+ def output_comps(self, encoding="utf-8"):
"""
Return <comps> section of configuration.
"""
parent.removeChild(comps)
doc.replaceChild(comps, doc.documentElement)
- doc.writexml(buf, encoding = encoding)
+ doc.writexml(buf, encoding=encoding)
# Put it back
parent.appendChild(comps)
try:
socket.inet_aton(val)
return True
- except: return False
+ except:
+ return False
def email_validator(val):
return re.match('\A[a-zA-Z0-9._%+\-]+@[a-zA-Z0-9._\-]+\.[a-zA-Z]+\Z', val)
- def boolean_validator (val):
+ def boolean_validator(val):
return val in ['true', 'false']
validators = {
- 'email' : email_validator,
+ 'email': email_validator,
'ip': ip_validator,
'boolean': boolean_validator,
- }
+ }
# validate it if not a know type.
validator = validators.get(variable_type, lambda x: True)
return validator(value)
-
# xml.dom.minidom.Text.writexml adds surrounding whitespace to textual
# data when pretty-printing. Override this behavior.
class TrimText(xml.dom.minidom.Text):
####################
# GLOBAL VARIABLES
#
-g_configuration=None
-usual_variables=None
-config_dir=None
-service=None
+g_configuration = None
+usual_variables = None
+config_dir = None
+service = None
+
def noop_validator(validated_variables):
pass
# historically we could also configure the devel pkg....
-def init_configuration ():
+def init_configuration():
global g_configuration
global usual_variables, config_dir, service
- usual_variables=g_configuration["usual_variables"]
- config_dir=g_configuration["config_dir"]
- service=g_configuration["service"]
+ usual_variables = g_configuration["usual_variables"]
+ config_dir = g_configuration["config_dir"]
+ service = g_configuration["service"]
global def_default_config, def_site_config, def_consolidated_config
- def_default_config= "%s/default_config.xml" % config_dir
+ def_default_config = "%s/default_config.xml" % config_dir
def_site_config = "%s/configs/site.xml" % config_dir
def_consolidated_config = "%s/%s_config.xml" % (config_dir, service)
global mainloop_usage
- mainloop_usage= """Available commands:
+ mainloop_usage = """Available commands:
Uppercase versions give variables comments, when available
u/U\t\t\tEdit usual variables
w\t\t\tWrite
Typical usage involves: u, [l,] w, r, q
""" % globals()
-def usage ():
- command_usage="%prog [options] [default-xml [site-xml [consolidated-xml]]]"
- init_configuration ()
- command_usage +="""
+
+def usage():
+ command_usage = "%prog [options] [default-xml [site-xml [consolidated-xml]]]"
+ init_configuration()
+ command_usage += """
\t default-xml defaults to %s
\t site-xml defaults to %s
-\t consolidated-xml defaults to %s""" % (def_default_config,def_site_config, def_consolidated_config)
+\t consolidated-xml defaults to %s""" % (def_default_config, def_site_config, def_consolidated_config)
return command_usage
+
####################
-variable_usage= """Edit Commands :
+variable_usage = """Edit Commands :
#\tShow variable comments
.\tStops prompting, return to mainloop
/\tCleans any site-defined value, reverts to default
"""
####################
-def get_value (config, category_id, variable_id):
- (category, variable) = config.get (category_id, variable_id)
+
+
+def get_value(config, category_id, variable_id):
+ (category, variable) = config.get(category_id, variable_id)
return variable['value']
-def get_type (config, category_id, variable_id):
- (category, variable) = config.get (category_id, variable_id)
+
+def get_type(config, category_id, variable_id):
+ (category, variable) = config.get(category_id, variable_id)
return variable['type']
-def get_current_value (cread, cwrite, category_id, variable_id):
+
+def get_current_value(cread, cwrite, category_id, variable_id):
# the value stored in cwrite, if present, is the one we want
try:
- result=get_value (cwrite,category_id,variable_id)
+ result = get_value(cwrite, category_id, variable_id)
except:
- result=get_value (cread,category_id,variable_id)
+ result = get_value(cread, category_id, variable_id)
return result
# refrain from using plc_config's _sanitize
-def get_varname (config, category_id, variable_id):
- (category, variable) = config.get (category_id, variable_id)
+
+
+def get_varname(config, category_id, variable_id):
+ (category, variable) = config.get(category_id, variable_id)
return (category_id+"_"+variable['id']).upper()
# could not avoid using _sanitize here..
-def get_name_comments (config, cid, vid):
+
+
+def get_name_comments(config, cid, vid):
try:
- (category, variable) = config.get (cid, vid)
- (id, name, value, comments) = config._sanitize_variable (cid,variable)
- return (name,comments)
+ (category, variable) = config.get(cid, vid)
+ (id, name, value, comments) = config._sanitize_variable(cid, variable)
+ return (name, comments)
except:
- return (None,[])
+ return (None, [])
-def print_name_comments (config, cid, vid):
- (name,comments)=get_name_comments(config,cid,vid)
+
+def print_name_comments(config, cid, vid):
+ (name, comments) = get_name_comments(config, cid, vid)
if name:
print("### %s" % name)
if comments:
for line in comments:
print("# %s" % line)
else:
- print("!!! No comment associated to %s_%s" % (cid,vid))
+ print("!!! No comment associated to %s_%s" % (cid, vid))
####################
-def list_categories (config):
- result=[]
+
+
+def list_categories(config):
+ result = []
for (category_id, (category, variables)) in config.variables().items():
result += [category_id]
return result
-def print_categories (config):
+
+def print_categories(config):
print("Known categories")
for cid in list_categories(config):
print("%s" % (cid.upper()))
####################
-def list_category (config, cid):
- result=[]
+
+
+def list_category(config, cid):
+ result = []
for (category_id, (category, variables)) in config.variables().items():
if (cid == category_id):
for variable in list(variables.values()):
- result += ["%s_%s" %(cid,variable['id'])]
+ result += ["%s_%s" % (cid, variable['id'])]
return result
-def print_category (config, cid, show_comments=True):
- cid=cid.lower()
- CID=cid.upper()
- vids=list_category(config,cid)
+
+def print_category(config, cid, show_comments=True):
+ cid = cid.lower()
+ CID = cid.upper()
+ vids = list_category(config, cid)
if (len(vids) == 0):
- print("%s : no such category"%CID)
+ print("%s : no such category" % CID)
else:
- print("Category %s contains" %(CID))
+ print("Category %s contains" % (CID))
for vid in vids:
print(vid.upper())
####################
-def consolidate (default_config, site_config, consolidated_config):
+
+
+def consolidate(default_config, site_config, consolidated_config):
global service
try:
- conso = PLCConfiguration (default_config)
- conso.load (site_config)
- conso.save (consolidated_config)
+ conso = PLCConfiguration(default_config)
+ conso.load(site_config)
+ conso.save(consolidated_config)
except Exception as inst:
print("Could not consolidate, %s" % (str(inst)))
return
- print(("Merged\n\t%s\nand\t%s\ninto\t%s"%(default_config,site_config,
- consolidated_config)))
+ print(("Merged\n\t%s\nand\t%s\ninto\t%s" % (default_config, site_config,
+ consolidated_config)))
+
-def reload_service ():
+def reload_service():
global service
os.system("set -x ; systemctl reload %s" % service)
####################
-def restart_service ():
+
+
+def restart_service():
global service
print(("==================== Stopping %s" % service))
os.system("systemctl stop %s" % service)
os.system("systemctl start %s" % service)
####################
-def prompt_variable (cdef, cread, cwrite, category, variable,
- show_comments, support_next=False):
+
+
+def prompt_variable(cdef, cread, cwrite, category, variable,
+ show_comments, support_next=False):
assert 'id' in category
assert 'id' in variable
- category_id = category ['id']
+ category_id = category['id']
variable_id = variable['id']
while True:
- default_value = get_value(cdef,category_id,variable_id)
- variable_type = get_type(cdef,category_id,variable_id)
- current_value = get_current_value(cread,cwrite,category_id, variable_id)
- varname = get_varname (cread,category_id, variable_id)
-
- if show_comments :
- print_name_comments (cdef, category_id, variable_id)
- prompt = "== %s : [%s] " % (varname,current_value)
+ default_value = get_value(cdef, category_id, variable_id)
+ variable_type = get_type(cdef, category_id, variable_id)
+ current_value = get_current_value(
+ cread, cwrite, category_id, variable_id)
+ varname = get_varname(cread, category_id, variable_id)
+
+ if show_comments:
+ print_name_comments(cdef, category_id, variable_id)
+ prompt = "== %s : [%s] " % (varname, current_value)
try:
answer = input(prompt).strip()
- except EOFError :
- raise Exception ('BailOut')
+ except EOFError:
+ raise Exception('BailOut')
except KeyboardInterrupt:
print("\n")
- raise Exception ('BailOut')
+ raise Exception('BailOut')
# no change
if (answer == "") or (answer == current_value):
return None
elif (answer == "."):
- raise Exception ('BailOut')
+ raise Exception('BailOut')
elif (answer == "#"):
- print_name_comments(cread,category_id,variable_id)
+ print_name_comments(cread, category_id, variable_id)
elif (answer == "?"):
print(variable_usage.strip())
elif (answer == "="):
- print(("%s defaults to %s" %(varname,default_value)))
+ print(("%s defaults to %s" % (varname, default_value)))
# revert to default : remove from cwrite (i.e. site-config)
elif (answer == "/"):
- cwrite.delete(category_id,variable_id)
- print(("%s reverted to %s" %(varname,default_value)))
+ cwrite.delete(category_id, variable_id)
+ print(("%s reverted to %s" % (varname, default_value)))
return
elif (answer == ">"):
if support_next:
- raise Exception ('NextCategory')
+ raise Exception('NextCategory')
else:
print("No support for next category")
else:
if cdef.validate_type(variable_type, answer):
variable['value'] = answer
- cwrite.set(category,variable)
+ cwrite.set(category, variable)
return
else:
print("Not a valid value")
-def prompt_variables_all (cdef, cread, cwrite, show_comments):
+
+def prompt_variables_all(cdef, cread, cwrite, show_comments):
try:
for (category_id, (category, variables)) in cread.variables().items():
print(("========== Category = %s" % category_id.upper()))
for variable in list(variables.values()):
try:
- newvar = prompt_variable (cdef, cread, cwrite, category, variable,
- show_comments, True)
+ newvar = prompt_variable(cdef, cread, cwrite, category, variable,
+ show_comments, True)
except Exception as inst:
- if (str(inst) == 'NextCategory'): break
- else: raise
+ if (str(inst) == 'NextCategory'):
+ break
+ else:
+ raise
except Exception as inst:
- if (str(inst) == 'BailOut'): return
- else: raise
+ if (str(inst) == 'BailOut'):
+ return
+ else:
+ raise
+
-def prompt_variables_category (cdef, cread, cwrite, cid, show_comments):
- cid=cid.lower()
- CID=cid.upper()
+def prompt_variables_category(cdef, cread, cwrite, cid, show_comments):
+ cid = cid.lower()
+ CID = cid.upper()
try:
print(("========== Category = %s" % CID))
- for vid in list_category(cdef,cid):
- (category,variable) = cdef.locate_varname(vid.upper())
- newvar = prompt_variable (cdef, cread, cwrite, category, variable,
- show_comments, False)
+ for vid in list_category(cdef, cid):
+ (category, variable) = cdef.locate_varname(vid.upper())
+ newvar = prompt_variable(cdef, cread, cwrite, category, variable,
+ show_comments, False)
except Exception as inst:
- if (str(inst) == 'BailOut'): return
- else: raise
+ if (str(inst) == 'BailOut'):
+ return
+ else:
+ raise
####################
-def show_variable (cdef, cread, cwrite,
- category, variable,show_value,show_comments):
+
+
+def show_variable(cdef, cread, cwrite,
+ category, variable, show_value, show_comments):
assert 'id' in category
assert 'id' in variable
- category_id = category ['id']
+ category_id = category['id']
variable_id = variable['id']
- default_value = get_value(cdef,category_id,variable_id)
- current_value = get_current_value(cread,cwrite,category_id,variable_id)
- varname = get_varname (cread,category_id, variable_id)
- if show_comments :
- print_name_comments (cdef, category_id, variable_id)
+ default_value = get_value(cdef, category_id, variable_id)
+ current_value = get_current_value(cread, cwrite, category_id, variable_id)
+ varname = get_varname(cread, category_id, variable_id)
+ if show_comments:
+ print_name_comments(cdef, category_id, variable_id)
if show_value:
- print("%s = %s" % (varname,current_value))
+ print("%s = %s" % (varname, current_value))
else:
print("%s" % (varname))
-def show_variables_all (cdef, cread, cwrite, show_value, show_comments):
+
+def show_variables_all(cdef, cread, cwrite, show_value, show_comments):
for (category_id, (category, variables)) in cread.variables().items():
print(("========== Category = %s" % category_id.upper()))
for variable in list(variables.values()):
- show_variable (cdef, cread, cwrite,
- category, variable,show_value,show_comments)
+ show_variable(cdef, cread, cwrite,
+ category, variable, show_value, show_comments)
-def show_variables_category (cdef, cread, cwrite, cid, show_value,show_comments):
- cid=cid.lower()
- CID=cid.upper()
+
+def show_variables_category(cdef, cread, cwrite, cid, show_value, show_comments):
+ cid = cid.lower()
+ CID = cid.upper()
print(("========== Category = %s" % CID))
- for vid in list_category(cdef,cid):
- (category,variable) = cdef.locate_varname(vid.upper())
- show_variable (cdef, cread, cwrite, category, variable,
- show_value,show_comments)
+ for vid in list_category(cdef, cid):
+ (category, variable) = cdef.locate_varname(vid.upper())
+ show_variable(cdef, cread, cwrite, category, variable,
+ show_value, show_comments)
+
####################
-re_mainloop_0arg="^(?P<command>[uUwrRqlLsSeEcvVhH\?])[ \t]*$"
-re_mainloop_1arg
="^(?P<command>[sSeEvV])[ \t]+(?P<arg>\w+)$"
-matcher_mainloop_0arg=re.compile(re_mainloop_0arg)
-matcher_mainloop_1arg=re.compile(re_mainloop_1arg)
+re_mainloop_0arg = "^(?P<command>[uUwrRqlLsSeEcvVhH\?])[ \t]*$"
+re_mainloop_1arg
= "^(?P<command>[sSeEvV])[ \t]+(?P<arg>\w+)$"
+matcher_mainloop_0arg = re.compile(re_mainloop_0arg)
+matcher_mainloop_1arg = re.compile(re_mainloop_1arg)
-def mainloop (cdef, cread, cwrite, default_config, site_config, consolidated_config):
+
+def mainloop(cdef, cread, cwrite, default_config, site_config, consolidated_config):
global service
while True:
try:
- answer = input("Enter command (u for usual changes, w to save, ? for help) ").strip()
+ answer = input(
+ "Enter command (u for usual changes, w to save, ? for help) ").strip()
except EOFError:
- answer =""
+ answer = ""
except KeyboardInterrupt:
print("\nBye")
sys.exit()
print(mainloop_usage)
continue
groups_parse = matcher_mainloop_0arg.match(answer)
- command=None
+ command = None
if (groups_parse):
command = groups_parse.group('command')
- arg=None
+ arg = None
else:
groups_parse = matcher_mainloop_1arg.match(answer)
if (groups_parse):
command = groups_parse.group('command')
- arg=groups_parse.group('arg')
+ arg = groups_parse.group('arg')
if not command:
print(("Unknown command >%s< -- use h for help" % answer))
continue
- show_comments=command.isupper()
+ show_comments = command.isupper()
- mode='ALL'
+ mode = 'ALL'
if arg:
- mode=None
- arg=arg.lower()
- variables=list_category (cdef,arg)
+ mode = None
+ arg = arg.lower()
+ variables = list_category(cdef, arg)
if len(variables):
# category_id as the category name
# variables as the list of variable names
- mode='CATEGORY'
- category_id=arg
- arg=arg.upper()
- (category,variable)=cdef.locate_varname(arg)
+ mode = 'CATEGORY'
+ category_id = arg
+ arg = arg.upper()
+ (category, variable) = cdef.locate_varname(arg)
if variable:
# category/variable as output by locate_varname
- mode='VARIABLE'
+ mode = 'VARIABLE'
if not mode:
print("%s: no such category or variable" % arg)
continue
elif command == "w":
try:
# Confirm that various constraints are met before saving file.
- validate_variables = g_configuration.get('validate_variables',{})
- validated_variables = cwrite.verify(cdef, cread, validate_variables)
- validator = g_configuration.get('validator',noop_validator)
+ validate_variables = g_configuration.get(
+ 'validate_variables', {})
+ validated_variables = cwrite.verify(
+ cdef, cread, validate_variables)
+ validator = g_configuration.get('validator', noop_validator)
validator(validated_variables)
cwrite.save(site_config)
except ConfigurationException as e:
print("Save failed due to a configuration exception: %s" % e)
- break;
+ break
except:
print(traceback.print_exc())
print(("Could not save -- fix write access on %s" % site_config))
break
print(("Wrote %s" % site_config))
consolidate(default_config, site_config, consolidated_config)
- print(("You might want to type 'r' (restart %s), 'R' (reload %s) or 'q' (quit)" % \
+ print(("You might want to type 'r' (restart %s), 'R' (reload %s) or 'q' (quit)" %
(service, service)))
elif command in "uU":
global usual_variables
try:
for varname in usual_variables:
- (category,variable) = cdef.locate_varname(varname)
+ (category, variable) = cdef.locate_varname(varname)
if not (category is None and variable is None):
- prompt_variable(cdef, cread, cwrite, category, variable, False)
+ prompt_variable(cdef, cread, cwrite,
+ category, variable, False)
except Exception as inst:
if (str(inst) != 'BailOut'):
raise
print_categories(cread)
elif command in "eE":
if mode == 'ALL':
- prompt_variables_all(cdef, cread, cwrite,show_comments)
+ prompt_variables_all(cdef, cread, cwrite, show_comments)
elif mode == 'CATEGORY':
- prompt_variables_category(cdef,cread,cwrite,category_id,show_comments)
+ prompt_variables_category(
+ cdef, cread, cwrite, category_id, show_comments)
elif mode == 'VARIABLE':
try:
- prompt_variable (cdef,cread,cwrite,category,variable,
- show_comments,False)
+ prompt_variable(cdef, cread, cwrite, category, variable,
+ show_comments, False)
except Exception as inst:
if str(inst) != 'BailOut':
raise
elif command in "vVsSlL":
- show_value=(command in "sSlL")
- (c1,c2,c3) = (cdef, cread, cwrite)
+ show_value = (command in "sSlL")
+ (c1, c2, c3) = (cdef, cread, cwrite)
if command in "lL":
- (c1,c2,c3) = (cwrite,cwrite,cwrite)
+ (c1, c2, c3) = (cwrite, cwrite, cwrite)
if mode == 'ALL':
- show_variables_all(c1,c2,c3,show_value,show_comments)
+ show_variables_all(c1, c2, c3, show_value, show_comments)
elif mode == 'CATEGORY':
- show_variables_category(c1,c2,c3,category_id,show_value,show_comments)
+ show_variables_category(
+ c1, c2, c3, category_id, show_value, show_comments)
elif mode == 'VARIABLE':
- show_variable (c1,c2,c3,category,variable,show_value,show_comments)
+ show_variable(c1, c2, c3, category, variable,
+ show_value, show_comments)
else:
print(("Unknown command >%s< -- use h for help" % answer))
####################
# creates directory for file if not yet existing
-def check_dir (config_file):
- dirname = os.path.dirname (config_file)
- if (not os.path.exists (dirname)):
+
+
+def check_dir(config_file):
+ dirname = os.path.dirname(config_file)
+ if (not os.path.exists(dirname)):
try:
- os.makedirs(dirname,0o755)
+ os.makedirs(dirname, 0o755)
except OSError as e:
- print("Cannot create dir %s due to %s - exiting" % (dirname,e))
+ print("Cannot create dir %s due to %s - exiting" % (dirname, e))
sys.exit(1)
- if (not os.path.exists (dirname)):
+ if (not os.path.exists(dirname)):
print("Cannot create dir %s - exiting" % dirname)
sys.exit(1)
else:
print("Created directory %s" % dirname)
####################
+
+
def optParserSetup(configuration):
parser = OptionParser(usage=usage())
parser.set_defaults(config_dir=configuration['config_dir'],
service=configuration['service'],
usual_variables=configuration['usual_variables'])
- parser.add_option("","--configdir",dest="config_dir",help="specify configuration directory")
- parser.add_option("","--service",dest="service",help="specify /etc/init.d style service name")
- parser.add_option("","--usual_variable",dest="usual_variables",action="append", help="add a usual variable")
+ parser.add_option("", "--configdir", dest="config_dir",
+ help="specify configuration directory")
+ parser.add_option("", "--service", dest="service",
+ help="specify /etc/init.d style service name")
+ parser.add_option("", "--usual_variable", dest="usual_variables",
+ action="append", help="add a usual variable")
return parser
-def main(command,argv,configuration):
+
+def main(command, argv, configuration):
global g_configuration
- g_configuration=configuration
+ g_configuration = configuration
parser = optParserSetup(configuration)
- (config,args) = parser.parse_args()
- if len(args)>3:
+ (config, args) = parser.parse_args()
+ if len(args) > 3:
parser.error("too many arguments")
- configuration['service']=config.service
- configuration['usual_variables']=config.usual_variables
- configuration['config_dir']=config.config_dir
+ configuration['service'] = config.service
+ configuration['usual_variables'] = config.usual_variables
+ configuration['config_dir'] = config.config_dir
# add in new usual_variables defined on the command line
for usual_variable in config.usual_variables:
if usual_variable not in configuration['usual_variables']:
# intialize configuration
init_configuration()
- (default_config,site_config,consolidated_config) = (def_default_config, def_site_config, def_consolidated_config)
+ (default_config, site_config, consolidated_config) = (
+ def_default_config, def_site_config, def_consolidated_config)
if len(args) >= 1:
- default_config=args[0]
+ default_config = args[0]
if len(args) >= 2:
- site_config=args[1]
+ site_config = args[1]
if len(args) == 3:
- consolidated_config=args[2]
+ consolidated_config = args[2]
- for c in (default_config,site_config,consolidated_config):
- check_dir (c)
+ for c in (default_config, site_config, consolidated_config):
+ check_dir(c)
try:
# the default settings only - read only
cread = PLCConfiguration(default_config)
except ConfigurationException as e:
- print(("Error %s in default config file %s" %(e,default_config)))
+ print(("Error %s in default config file %s" % (e, default_config)))
return 1
except:
print(traceback.print_exc())
- print(("default config files %s not found, is myplc installed ?" % default_config))
+ print(("default config files %s not found, is myplc installed ?" %
+ default_config))
return 1
-
# local settings only, will be modified & saved
- cwrite=PLCConfiguration()
+ cwrite = PLCConfiguration()
try:
cread.load(site_config)
except:
cwrite = PLCConfiguration()
- mainloop (cdef, cread, cwrite, default_config, site_config, consolidated_config)
+ mainloop(cdef, cread, cwrite, default_config,
+ site_config, consolidated_config)
return 0
+
if __name__ == '__main__':
import sys
if len(sys.argv) > 1 and sys.argv[1] in ['build', 'install', 'uninstall']:
git://git.onelab.eu / myplc.git / commitdiff