Source Code for Module rosdep.gentoo

 1  #!/usr/bin/env python 
 2  # Copyright (c) 2009, Willow Garage, Inc. 
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15  #       this software without specific prior written permission. 
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28   
29  from __future__ import with_statement 
30  import os.path 
31  import roslib.os_detect 
32  import subprocess 
33   
34  import rosdep.base_rosdep 
35   
36  # Determine whether package p needs to be installed 
37 -def equery_detect(p): 
38      cmd = ['equery', '-q', 'l', p] 
39      pop = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) 
40      (std_out, std_err) = pop.communicate() 
41       
42      return (std_out.count("") == 1) 
43   
44  # Check equery for existence and compatibility (gentoolkit 0.3) 
45 -def equery_available(): 
46      if not os.path.exists("/usr/bin/equery"): 
47          return False 
48   
49      cmd = ['equery', '-V'] 
50      pop = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) 
51      (stdout, stderr) = pop.communicate() 
52   
53      return "0.3." == stdout[8:12] 
54   
55   
56  ###### Gentoo SPECIALIZATION ######################### 
57 -class Gentoo(roslib.os_detect.Gentoo, rosdep.base_rosdep.RosdepBaseOS): 
58 -    def strip_detected_packages(self, packages): 
59          if equery_available(): 
60              return [p for p in packages if equery_detect(p)] 
61          else: 
62              return packages 
63   
64 -    def generate_package_install_command(self, packages, default_yes): 
65          if len(packages) == 0: 
66              return "# Package prerequisites satisfied - nothing to do" 
67          elif equery_available(): 
68              return "#Packages\nsudo emerge " + ' '.join(packages) 
69          else: 
70              return "#Packages\nsudo emerge -u " + ' '.join(packages) 
71   
72  ###### END Gentoo SPECIALIZATION ######################## 
73