Source Code for Module jazzparser.utils.system

 1  """Utilities relating to the system the software is running on. 
 2   
 3  """ 
 4  """ 
 5  ============================== License ======================================== 
 6   Copyright (C) 2008, 2010-12 University of Edinburgh, Mark Granroth-Wilding 
 7    
 8   This file is part of The Jazz Parser. 
 9    
10   The Jazz Parser is free software: you can redistribute it and/or modify 
11   it under the terms of the GNU General Public License as published by 
12   the Free Software Foundation, either version 3 of the License, or 
13   (at your option) any later version. 
14    
15   The Jazz Parser is distributed in the hope that it will be useful, 
16   but WITHOUT ANY WARRANTY; without even the implied warranty of 
17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
18   GNU General Public License for more details. 
19    
20   You should have received a copy of the GNU General Public License 
21   along with The Jazz Parser.  If not, see <http://www.gnu.org/licenses/>. 
22   
23  ============================ End license ====================================== 
24   
25  """ 
26  __author__ = "Mark Granroth-Wilding <mark.granroth-wilding@ed.ac.uk>"  
27   
28  import platform 
29  import subprocess 
30   
31 -def set_proc_title(title): 
32      """ 
33      Tries to set the current process title. This is very system-dependent  
34      and may fail in many cases. 
35       
36      @return: True if the process succeeds, False if there's an error 
37       
38      """ 
39      try: 
40          import ctypes 
41          libc = ctypes.CDLL('libc.so.6') 
42          retcode = libc.prctl(15, '%s\0' % title, 0, 0, 0) 
43          if retcode: 
44              return False 
45      except: 
46          return False 
47      else: 
48          return True 
49   
50 -def get_host_info_string(): 
51      """ 
52      Returns a string containing information to identify the system on which  
53      you're currently running. This is useful to logging info. Don't try  
54      matching against it - you'll be better off getting the components  
55      separately. 
56       
57      """ 
58      import socket, os 
59       
60      # This should usually give the system's hostname 
61      hostname = socket.gethostname() 
62      # In case this doesn't give a good answer, we also get all the uname info 
63      #  (we might want to know something more about the system anyway) 
64      uname = ", ".join(os.uname()) 
65      return "%s (%s)" % (hostname, uname) 
66   
67 -def open_file(filename): 
68      """ 
69      Tries to use a system-recommended application to open the given file. 
70      Uses C{xdg-open} on Linux, C{start} on Windows and C{open}  
71      on Mac. 
72       
73      """ 
74      if is_windows(): 
75          cmd = "start" 
76      elif is_mac(): 
77          cmd = "open" 
78      else: 
79          # Otherwise assume linux 
80          cmd = "xdg-open" 
81      # Run the command 
82      subprocess.call([cmd, filename]) 
83   
84 -def is_windows(): 
85      return platform.system().lower() == 'windows' 
86 -def is_mac(): 
87      return platform.system().lower() == 'darwin' 
88 -def is_linux(): 
89      return platform.system().lower() == 'linux' 
90