tools/bass/component.py

   1 #!/usr/bin/python3.5
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22 # Copyright (c) 2010, Oracle and/or it's affiliates.  All rights reserved.
  23 #
  24 #
  25 # bass-o-matic.py
  26 #  A simple program to enumerate components in the userland gate and report
  27 #  on dependency related information.
  28 #
  29
  30 import os
  31 import subprocess
  32 import json
  33
  34 class Component(object):
  35     def __init__(self, path=None, debug=False):
  36         self.debug = debug
  37         self.path = path
  38         self.name = None
  39         self.supplied_packages = []
  40         self.required_packages = []
  41         if path:
  42             component_pkg5_file = os.path.join(self.path, 'pkg5')
  43             if not os.path.isfile(component_pkg5_file):
  44                 # get component name
  45                 component_name = self.run_make(path, 'print-value-COMPONENT_NAME')
  46                 if not component_name:
  47                     raise ValueError('Component returns empty name at ' + self.path + '.')
  48                 else:
  49                     self.name = component_name[0]
  50                 # get supplied packages, this may trigger the creation of a pkg5.fmris file
  51                 self.supplied_packages = self.run_make(path, 'print-package-names')
  52                 # always update fmris if list is overriden
  53                 component_pkg5_fmris_file = os.path.join(self.path, 'pkg5.fmris')
  54                 if os.path.isfile(component_pkg5_fmris_file):
  55                     with open(component_pkg5_fmris_file, 'r') as f:
  56                         self.supplied_packages = f.read().splitlines()
  57
  58                 # get dependencies
  59                 self.required_packages = self.run_make(path, 'print-required-packages')
  60
  61                 data = { 'name' : self.name,
  62                          'fmris': self.supplied_packages,
  63                          'dependencies' : self.required_packages }
  64                 with open(component_pkg5_file, 'w') as f:
  65                     f.write(json.dumps(data, sort_keys=True, indent=4))
  66                     f.write('\n')
  67             else:
  68                 with open(component_pkg5_file, 'r') as f:
  69                     data = json.loads(f.read())
  70                 if not data:
  71                     raise ValueError('Component pkg5 data is empty for path ' + self.path + '.')
  72                 self.name = data['name']
  73                 self.supplied_packages = data['fmris']
  74                 self.required_packages = data['dependencies']
  75
  76     def required(self, component):
  77         result = False
  78
  79         s1 = set(self.required_packages)
  80         s2 = set(component.supplied_packages)
  81         if s1.intersection(s2):
  82             result = True
  83
  84         return result
  85
  86     def run_make(self, path, targets):
  87
  88         result = []
  89
  90         if self.debug:
  91             logger.debug('Executing \'gmake %s\' in %s', targets, path)
  92
  93         proc = subprocess.Popen(['gmake', '-s', targets],
  94                                 stdout=subprocess.PIPE,
  95                                 stderr=subprocess.PIPE,
  96                                 cwd=path,
  97                                 universal_newlines=True)
  98         stdout, stderr = proc.communicate()
  99
 100         for out in stdout.splitlines():
 101             result.append(out.rstrip())
 102
 103         if self.debug:
 104             if proc.returncode != 0:
 105                 logger.debug('exit: %d, %s', proc.returncode, stderr)
 106
 107         return result
 108
 109     def __str__(self):
 110         result = 'Component:\n\tPath: %s\n' % self.path
 111         result += '\tProvides Package(s):\n\t\t%s\n' % '\t\t'.join(self.supplied_packages)
 112         result += '\tRequired Package(s):\n\t\t%s\n' % '\t\t'.join(self.required_packages)
 113
 114         return result
 115