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#!/usr/bin/env python
# -*- coding: utf-8 -*-
###############################################################################
# plugin_processinfo.py is a plugin for gnome-desktop-info to retrieve process
# information as defined in a template and display it's output
#
# Author: Kaivalagi
# Created: 21/04/2009
from optparse import OptionParser
from plugin_common import getTypedValue
import codecs
import fileinput
import logging
import os
import re
import shutil
import socket
import statgrab
import subprocess
import traceback
app_name = "gtk-desktop-info"
app_path = os.path.dirname(os.path.abspath(__file__))
module_name = __file__.replace(os.path.dirname (__file__) + "/", "").replace(".pyc","").replace(".py", "")
class ProcessInfoConfig:
HEADERTEMPLATE = None
TEMPLATE = None
LIMIT = None
SORTBY = None
class ProcessInfoData:
def __init__(self, name, id, cpu, memory):
self.name = name
self.id = id
self.cpu = cpu
self.memory = memory
def __cmp__(self, other):
return cmp(self.cpu, other.cpu)
def __str__(self):
return str(self.name + " - " + self.cpu + " - " + self.memory)
class Output:
output = u""
error = u""
totalkilobytes = None
def __init__(self, options):
self.options = options
self.logger = logging.getLogger(app_name+"."+module_name)
self.loadConfigData()
def loadConfigData(self):
try:
self.config = ProcessInfoConfig()
if self.options.config != None:
# load the config based on options passed in from the main app
configfilepath = self.options.config
else:
# load plugin config from home directory of the user
configfilepath = os.path.join(os.path.expanduser('~'), ".config/"+app_name+"/"+module_name+".config")
if os.path.exists(configfilepath):
self.logger.info("Loading config settings from \"%s\""%configfilepath)
for line in fileinput.input(os.path.expanduser(configfilepath)):
line = line.strip()
if len(line) > 0 and line[0:1] != "#": # ignore commented lines or empty ones
splitpos = line.find("=")
name = line[:splitpos-1].strip().upper() # config setting name on the left of =
value = line[splitpos+1:].split("#")[0].strip()
if len(value) > 0:
if name == "HEADERTEMPLATE":
self.config.HEADERTEMPLATE = getTypedValue(value, "string")
elif name == "TEMPLATE":
self.config.TEMPLATE = getTypedValue(value, "string")
elif name == "LIMIT":
self.config.LIMIT = getTypedValue(value, "integer")
elif name == "SORTBY":
self.config.SORTBY = getTypedValue(value, "string")
else:
self.logger.error("Unknown option in config file: " + name)
else:
self.logger.info("Config data file %s not found, using defaults and setting up config file for next time" % configfilepath)
userconfigpath = os.path.join(os.path.expanduser('~'), ".config/"+app_name+"/")
configsource = os.path.join(app_path, "config/"+module_name+".config")
if os.path.exists(userconfigpath) == False:
os.makedirs(userconfigpath)
shutil.copy(configsource, configfilepath)
except Exception, e:
self.logger.error(e.__str__()+"\n"+traceback.format_exc())
def BIGBANGgetOutputData(self):
try:
processInfoList = statgrab.sg_get_process_stats()
currentid = os.getpid()
processInfoDataList = []
for processInfo in processInfoList:
name = processInfo['process_name']
id = processInfo['pid']
cpu = processInfo['cpu_percent']
memory = processInfo['proc_size']
if currentid != id: # ignore info on this process
processInfoData = ProcessInfoData(name,str(id),self.formatCPU(cpu),self.formatMemory(memory))
processInfoDataList.append(processInfoData)
if self.config.SORTBY == "CPU":
processInfoDataList.sort(lambda x, y: cmp(x.cpu, y.cpu))
elif self.config.SORTBY == "MEM":
processInfoDataList.sort(lambda x, y: cmp(x.memory, y.memory))
else:
processInfoDataList.sort()
processInfoDataList.reverse()
return processInfoDataList
except Exception, e:
self.logger.error(e.__str__()+"\n"+traceback.format_exc())
return []
def BIGBANGformatCPU(self, value, dp=2):
if dp == 0:
return str(int(round(value,dp)))+"%" # lose the dp
else:
return str(round(value,dp))+"%"
def BIGBANGformatMemory(self, value):
return str(value / 1024)+"KB"
def getOutputData(self):
try:
processInfoDataList = []
proc = subprocess.Popen("cat /proc/meminfo | grep MemTotal:", shell=True, stdout=subprocess.PIPE)
self.totalkilobytes = float(proc.communicate()[0][10:].replace("kB","").strip(" "))
proc = subprocess.Popen("top -n 1 -b | sed '1,7d'", shell=True, stdout=subprocess.PIPE)
lines = proc.communicate()[0].rstrip("\n").split("\n")
for line in lines:
name = line[61:].strip(" ")
id = int(line[:6].strip(" "))
cpu = float(line[43:46].strip(" "))
memory = float(line[47:50].strip(" "))
if cpu > 0 or memory > 0:
processInfoData = ProcessInfoData(name,id,cpu,memory)
processInfoDataList.append(processInfoData)
if self.config.SORTBY == "CPU":
processInfoDataList.sort(lambda x, y: cmp(x.cpu, y.cpu))
elif self.config.SORTBY == "MEM":
processInfoDataList.sort(lambda x, y: cmp(x.memory, y.memory))
else:
processInfoDataList.sort()
processInfoDataList.reverse()
return processInfoDataList
except Exception, e:
self.logger.error(e.__str__()+"\n"+traceback.format_exc())
return []
def formatMemory(self, percent, total):
size = total * (percent / 100)
unit = "KB"
if size > 1024:
size = size / 1024.0
unit = "MB"
return str(round(size,2))+unit
def formatCPU(self, percent):
return str(round(percent,2))+"%"
def getOutputFromTemplate(self, template, name, id, cpu, memory):
try:
output = template
if name == None or name.strip() == "":
name = ""
output = output.replace("[name]",name)
if id == None or id.strip() == "":
id = ""
output = output.replace("[id]",id)
if cpu == None or cpu.strip() == "":
cpu = ""
output = output.replace("[cpu]",cpu)
if memory == None or memory.strip() == "":
memory = ""
output = output.replace("[memory]",memory)
# get rid of any excess crlf's and add just one
#output = output.rstrip(" \n")
#output = output + "\n"
return output.encode("utf-8")
except Exception,e:
self.logger.error(e.__str__()+"\n"+traceback.format_exc())
return ""
def getOutput(self):
if self.options.noheader == True:
headertemplatefilepath = app_path+"/templates/processinfoheader.template"
self.logger.info("Using custom header template file '%s'"%headertemplatefilepath)
elif self.options.headertemplate != None and os.path.exists(os.path.expanduser(self.options.headertemplate)) == True:
headertemplatefilepath = self.options.headertemplate
self.logger.info("Using custom header template file '%s'"%headertemplatefilepath)
elif self.config.HEADERTEMPLATE != None and os.path.exists(os.path.expanduser(self.config.HEADERTEMPLATE)) == True:
headertemplatefilepath = self.config.HEADERTEMPLATE
self.logger.info("Using custom header template file '%s'"%headertemplatefilepath)
else:
headertemplatefilepath = app_path+"/templates/processinfoheader.template"
self.logger.info("Using default header template")
# load the file
try:
inputfile = codecs.open(os.path.expanduser(headertemplatefilepath), encoding='utf-8')
except Exception, e:
self.logger.error("Error loading header template file: " + e.__str__()+"\n"+traceback.format_exc())
else:
headertemplate = inputfile.read()
finally:
inputfile.close()
if self.options.template != None:
templatefilepath = self.options.template
self.logger.info("Using custom template file '%s'"%templatefilepath)
elif self.config.TEMPLATE != None and os.path.exists(os.path.expanduser(self.config.TEMPLATE)) == True:
templatefilepath = self.config.TEMPLATE
self.logger.info("Using custom template file '%s'"%templatefilepath)
else:
templatefilepath = app_path+"/templates/processinfo.template"
self.logger.info("Using default template")
# load the file
try:
inputfile = codecs.open(os.path.expanduser(templatefilepath), encoding='utf-8')
except Exception, e:
self.logger.error("Error loading template file: " + e.__str__()+"\n"+traceback.format_exc())
else:
template = inputfile.read()
finally:
inputfile.close()
output = headertemplate
count = 0
processInfoDataList = self.getOutputData()
if len(processInfoDataList) == 0:
output = "Failed to retrieve process information"
else:
for processInfoData in processInfoDataList:
count += 1
output = output + self.getOutputFromTemplate(template, processInfoData.name, str(processInfoData.id), self.formatCPU(processInfoData.cpu), self.formatMemory(processInfoData.memory, self.totalkilobytes))
if self.config.LIMIT != None and count >= self.config.LIMIT:
break
return output.encode("utf-8")
def getHTML(options):
output = Output(options)
html = output.getOutput()
del output
return html
# to enable testing in isolation
if __name__ == "__main__":
parser = OptionParser()
parser.add_option("--noheader", dest="noheader", default=False, action="store_true", help=u"Turn off header output. This will override any header template setting to be nothing")
parser.add_option("--headertemplate", dest="headertemplate", type="string", metavar="FILE", help=u"Override the header template for the plugin, default or config based template ignored.")
parser.add_option("--template", dest="template", type="string", metavar="FILE", help=u"Override the template for the plugin, default or config based template ignored.")
parser.add_option("--verbose", dest="verbose", default=False, action="store_true", help=u"Outputs verbose info to the terminal")
parser.add_option("--version", dest="version", default=False, action="store_true", help=u"Displays the version of the script.")
parser.add_option("--logfile", dest="logfile", type="string", metavar="FILE", help=u"If a filepath is set, the script logs to the filepath.")
(options, args) = parser.parse_args()
output = Output(options)
html = output.getOutput()
del output
print html
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