__main__.py
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00001 #! /usr/bin/env python -m
00002 # -*- coding: utf-8 -*-
00003 #     _____
00004 #    /  _  \
00005 #   / _/ \  \
00006 #  / / \_/   \
00007 # /  \_/  _   \  ___  _    ___   ___   ____   ____   ___   _____  _   _
00008 # \  / \_/ \  / /  _\| |  | __| / _ \ | ┌┐ \ | ┌┐ \ / _ \ |_   _|| | | |
00009 #  \ \_/ \_/ /  | |  | |  | └─┐| |_| || └┘ / | └┘_/| |_| |  | |  | └─┘ |
00010 #   \  \_/  /   | |_ | |_ | ┌─┘|  _  || |\ \ | |   |  _  |  | |  | ┌─┐ |
00011 #    \_____/    \___/|___||___||_| |_||_| \_\|_|   |_| |_|  |_|  |_| |_|
00012 #            ROBOTICS™
00013 #
00014 #  File: clearpath/__main__.py
00015 #  Desc: Clearpath Robotics Installed Python Modules Listing.
00016 #  Auth: Malcolm Robert
00017 #  
00018 #  Copyright © 2010 Clearpath Robotics, Inc. 
00019 #  All Rights Reserved
00020 # 
00021 #  Redistribution and use in source and binary forms, with or without
00022 #  modification, are permitted provided that the following conditions are met:
00023 #      * Redistributions of source code must retain the above copyright
00024 #        notice, this list of conditions and the following disclaimer.
00025 #      * Redistributions in binary form must reproduce the above copyright
00026 #        notice, this list of conditions and the following disclaimer in the
00027 #        documentation and/or other materials provided with the distribution.
00028 #      * Neither the name of Clearpath Robotics, Inc. nor the
00029 #        names of its contributors may be used to endorse or promote products
00030 #        derived from this software without specific prior written permission.
00031 # 
00032 #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
00033 #  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
00034 #  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
00035 #  ARE DISCLAIMED. IN NO EVENT SHALL CLEARPATH ROBOTICS, INC. BE LIABLE FOR ANY
00036 #  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
00037 #  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00038 #  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00039 #  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00040 #  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00041 #  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00042 #
00043 #  Please send comments, questions, or patches to code@clearpathrobotics.com
00044 #
00045 
00046 
00047 
00048 
00049 ################################################################################
00050 # Module
00051 
00052 
00053 
00054 ## @package clearpath.__main__
00055 #  Clearpath Robotics Modules Listing
00056 # 
00057 #  Python Script for listing installed Clearpath python modules.
00058 #
00059 #  @author     Malcolm Robert
00060 #  @date       24/03/10
00061 #  @version    1.0
00062 #
00063 #  @section USE
00064 #
00065 #  This module, the main script for the clearpath package, provides the user
00066 #  with a list of installed Clearpath Robotics, Inc. modules, their versions, 
00067 #  and whether the module can run as a script (x) or just a module (m).
00068 #  Because this script imports modules as it searches, only modules compatible
00069 #  with the version of Python you are running will be listed.
00070 #
00071 #  This script is executed by running
00072 #  'python -m clearpath' for Python 2.7+ and Python 3.1+ or 
00073 #  'python -m clearpath.__main__' for Python 2.6- and Python 3.0.
00074 #
00075 #  @section HISTORY
00076 #
00077 #  Version 1.0
00078 #  - Initial Creation
00079 #  - Python 2.5+ & 3.x compatible
00080 #
00081 #  @section License
00082 #  @copydoc public_license
00083 #
00084 """Python Script for listing installed Clearpath python modules.
00085 
00086    Copyright © 2010 Clearpath Robotics, Inc.
00087    All rights reserved
00088    
00089    Created: 24/03/10
00090    Author:  Malcolm Robert
00091    Version: 1.0
00092    """
00093 
00094 
00095 # A note on comments:
00096 # To take advantage of the superior Doxygen documentation generator,
00097 # Doxygen comments (first line ##, following lines #) are used.
00098 # It is still important to provide Python __doc__ strings for use with help() 
00099 # and pydoc, however, they (except for module) are also grabbed by Doxygen.
00100 # To fix this, the custom Doxygen tag @pydoc has been added to separate
00101 # __doc__ strings from being included in the last Doxygen tag.
00102 # @pydoc must be the last Doxygen tag before """doc string"""
00103 # Additionally, the custom Doxygen tag @req has been added to specify
00104 # required modules that do not come with the standard Python distribution.
00105 # Both custom tags are aliases to @par.
00106 
00107 
00108 # Required Python Modules
00109 import os.path                  # File Path Manipulation
00110 import pkgutil                  # Python Package Utilities 
00111 import sys                      # Python Interpreter Functionality
00112 
00113 
00114 # Module Support
00115 ## Module Version
00116 __version__  = "1.0"
00117 """Module Version"""
00118 ## SVN Code Revision
00119 __revision__ = "$Revision: 634 $"
00120 """ SVN Code Revision"""
00121 
00122 
00123 
00124 
00125 ################################################################################
00126 # Module Listing
00127 
00128 
00129 
00130 ## List Installed Modules
00131 #  
00132 #  Lists installed modules within the given package.
00133 #  List format is similar to the Unix program tree.
00134 #
00135 #  @param  package The name of the package to list
00136 #  @param  prefix  The string to put at the start of each line
00137 #  @param  pos     The location of the package: 0 - head, 1 - middle, 2 - tail
00138 #  @return list of tuple(line,version,is_script) in the display order
00139 #
00140 #  @pydoc
00141 def list_modules(package, prefix = '', pos = 0):
00142     """List Installed Modules."""
00143     mods = []
00144     
00145     # import the package for traversal
00146     try:
00147         __import__(package)
00148         pkg = sys.modules[package]
00149     
00150         # print package name
00151         pre = '';
00152         if pos >= 2:
00153             mods.append(tuple([prefix + "`-- " + pkg.__name__.split('.')[-1],
00154                                "%s r%s" % (pkg.__version__,
00155                                              pkg.__revision__[10:-1].strip()),
00156                                 hasattr(pkg,'__main')]))
00157             pre = prefix + "    "
00158         elif pos == 1:
00159             mods.append(tuple([prefix + "|-- " + pkg.__name__.split('.')[-1],
00160                                "%s r%s" % (pkg.__version__,
00161                                              pkg.__revision__[10:-1].strip()),
00162                                 hasattr(pkg,'__main')]))
00163             pre = prefix + "|   "
00164         else:
00165             mods.append(tuple([prefix + pkg.__name__.split('.')[-1],
00166                                "%s r%s" % (pkg.__version__,
00167                                              pkg.__revision__[10:-1].strip()),
00168                                 hasattr(pkg,'__main')]))
00169             pre = prefix
00170             
00171         # grab sub-packages & modules and sort them by name
00172         def mod_key(mod):
00173             return mod[0]
00174         children = [tuple([name, ispkg]) for _, name, ispkg in \
00175                     pkgutil.iter_modules([os.path.dirname(pkg.__file__)])]
00176         children.sort(key=mod_key)
00177         
00178         # traverse children
00179         for i in range(0,len(children)):
00180             
00181             # module -> import & print
00182             if children[i][1] == False:
00183                 try:
00184                     __import__(package + "." + children[i][0])
00185                     chi = sys.modules[package + "." + children[i][0]]
00186                     if i >= len(children) - 1:
00187                         mods.append(tuple([pre + "`-- " + children[i][0],
00188                                            "%s r%s" % (chi.__version__,
00189                                             chi.__revision__[10:-1].strip()),
00190                                             hasattr(chi,'__main')]))
00191                     else:
00192                         mods.append(tuple([pre + "|-- " + children[i][0],
00193                                            "%s r%s" % (chi.__version__,
00194                                             chi.__revision__[10:-1].strip()),
00195                                             hasattr(chi,'__main')]))
00196                 except:
00197                     pass
00198                     
00199             # package -> recursion
00200             else:
00201                 if i >= len(children) - 1:
00202                     mods += list_modules(package + "." + children[i][0], pre, 2)
00203                 else:
00204                     mods += list_modules(package + "." + children[i][0], pre, 1)
00205         
00206     # package must be import-able to be displayed
00207     except:
00208         pass
00209     return mods
00210         
00211         
00212         
00213 ## List Installed Modules
00214 #
00215 #  Main Program for Clearpath Robotics, Inc. package
00216 #  - Gets a tree list of installed clearpath modules and their versions
00217 #  - Prints the list to stdout
00218 #
00219 #  @pydoc
00220 def __main():
00221     """List Installed Modules."""
00222     
00223     # Get the tree list
00224     modules = list_modules('clearpath', '', 0)
00225     
00226     # Calculate padding requirements for pretty printing
00227     def mod_key(mod):
00228         return mod[0]
00229     width = max(list(map(len,list(map(mod_key,modules))))) + 1
00230     def mod_key1(mod):
00231         return mod[1]
00232     length = max(list(map(len,list(map(mod_key1,modules)))))
00233     
00234     # Print the tree list
00235     for mod in modules:
00236         if mod[2] == True:
00237             print((mod[0] + ' ' + '.'*(width-len(mod[0])) + ' [' + mod[1] + 
00238                    '.'*(length-len(mod[1])) + '] x'))
00239         else:
00240             print((mod[0] + ' ' + '.'*(width-len(mod[0])) + ' [' + mod[1] + 
00241                    ' '*(length-len(mod[1])) + '] m'))
00242     
00243     # Exit the program
00244     sys.exit(0);
00245     
00246 
00247   
00248   
00249 ################################################################################
00250 # Script
00251 
00252 
00253 
00254 # Check if run as a script
00255 if __name__ == "__main__":
00256 
00257     # Run the main method
00258     __main()
00259 
00260     # Exit Bad - Should not reach so if it does: error
00261     sys.exit(1)


clearpath_base
Author(s): Mike Purvis
autogenerated on Sat Dec 28 2013 16:50:47