Package roswtf :: Module py_pip_deb_checks
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Source Code for Module roswtf.py_pip_deb_checks

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 32   
 33  """ 
 34  Checks to see if core Python scripts have: 
 35  1) Been installed 
 36  2) Have been installed via Debians on Ubuntu 
 37  3) Have not been installed via pip on Ubuntu 
 38  """ 
 39   
 40  from __future__ import print_function 
 41   
 42  import subprocess 
 43  import importlib 
 44  import os 
 45  import sys 
 46   
 47  python_prefix = 'python' 
 48  if sys.version_info[0] == 3: 
 49      python_prefix += '3' 
 50   
 51  #A dictionary of core ROS python packages and their corresponding .deb packages 
 52  py_to_deb_core_packages = { 
 53      'catkin_pkg': '%s-catkin-pkg' % python_prefix, 
 54      'rospkg': '%s-rospkg' % python_prefix, 
 55      'rosdep2': '%s-rosdep' % python_prefix, 
 56  } 
 57  # optional ROS python packages and their corresponding .deb packages 
 58  py_to_deb_optional_packages = { 
 59      'rosinstall': '%s-rosinstall' % python_prefix, 
 60  } 
 61   
 62  #A dictionary of release ROS python packages and their corresponding .deb packages 
 63  py_to_deb_release_packages = { 
 64      'bloom': '%s-bloom' % python_prefix, 
 65      'rosrelease': '%s-rosrelease' % python_prefix, 
 66  } 
 67   
 68   
69 -def get_host_os():
70 """Determines the name of the host operating system""" 71 import rospkg.os_detect 72 os_detector = rospkg.os_detect.OsDetect() 73 return (os_detector.detect_os())[0]
74 75
76 -def is_host_os_ubuntu():
77 """Indicates if the host operating system is Ubuntu""" 78 return (get_host_os() == 'ubuntu')
79 80
81 -def is_debian_package_installed(deb_pkg):
82 """Uses dpkg to determine if a package has been installed""" 83 return (subprocess.call( 84 'dpkg -l ' + deb_pkg, 85 shell=True, 86 stdout=subprocess.PIPE, 87 stderr=subprocess.PIPE) == 0)
88 89
90 -def is_a_pip_path_on_ubuntu(path):
91 """Indicates if a path (either directory or file) is in the same place 92 pip installs Python code""" 93 return ('/usr/local' in path)
94 95
96 -def is_python_package_installed(python_pkg):
97 """Indicates if a Python package is importable in the current 98 environment.""" 99 try: 100 importlib.import_module(python_pkg) 101 return True 102 except ImportError: 103 return False
104 105
106 -def is_python_package_installed_via_pip_on_ubuntu(python_pkg):
107 """Indicates if am importable package has been installed through pip on 108 Ubuntu""" 109 try: 110 pkg_handle = importlib.import_module(python_pkg) 111 return is_a_pip_path_on_ubuntu(pkg_handle.__file__) 112 except ImportError: 113 return False
114 115 116 # Error/Warning Rules
117 -def python_module_install_check(ctx):
118 """Make sure core Python modules are installed""" 119 warn_str = '' 120 for py_pkg in py_to_deb_core_packages: 121 if not is_python_package_installed(py_pkg): 122 warn_str = warn_str + py_pkg + ' -- ' 123 if (warn_str != ''): 124 return warn_str
125 126
127 -def deb_install_check_on_ubuntu(ctx):
128 """Make sure on Debian python packages are installed""" 129 if (is_host_os_ubuntu()): 130 warn_str = '' 131 for py_pkg in py_to_deb_core_packages: 132 deb_pkg = py_to_deb_core_packages[py_pkg] 133 if not is_debian_package_installed(deb_pkg): 134 warn_str = warn_str + py_pkg + ' (' + deb_pkg + ') -- ' 135 if (warn_str != ''): 136 return warn_str
137 138
139 -def pip_install_check_on_ubuntu(ctx):
140 """Make sure on Ubuntu, Python packages are install with apt and not pip""" 141 if (is_host_os_ubuntu()): 142 warn_str = '' 143 pt_to_deb_package_names = list(py_to_deb_core_packages.keys()) + \ 144 list(py_to_deb_optional_packages.keys()) + list(py_to_deb_release_packages.keys()) 145 for py_pkg in pt_to_deb_package_names: 146 if is_python_package_installed_via_pip_on_ubuntu(py_pkg): 147 warn_str = warn_str + py_pkg + ' -- ' 148 if (warn_str != ''): 149 return warn_str
150 151 warnings = [ 152 (python_module_install_check, 153 "You are missing core ROS Python modules: "), 154 (pip_install_check_on_ubuntu, 155 "You have pip installed packages on Ubuntu, " 156 "remove and install using Debian packages: "), 157 (deb_install_check_on_ubuntu, 158 "You are missing Debian packages for core ROS Python modules: "), 159 ] 160 161 errors = [] 162 163
164 -def wtf_check(ctx):
165 """Check implementation function for roswtf""" 166 from roswtf.rules import warning_rule, error_rule 167 for r in warnings: 168 warning_rule(r, r[0](ctx), ctx) 169 for r in errors: 170 error_rule(r, r[0](ctx), ctx)
171