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How to use warn_str method in avocado

Best Python code snippet using avocado_python

py_pip_deb_checks.py

Source:py_pip_deb_checks.py

1# Software License Agreement (BSD License)2#3# Copyright (c) 2012, Willow Garage, Inc.4# All rights reserved.5#6# Redistribution and use in source and binary forms, with or without7# modification, are permitted provided that the following conditions8# are met:9#10#  * Redistributions of source code must retain the above copyright11#    notice, this list of conditions and the following disclaimer.12#  * Redistributions in binary form must reproduce the above13#    copyright notice, this list of conditions and the following14#    disclaimer in the documentation and/or other materials provided15#    with the distribution.16#  * Neither the name of Willow Garage, Inc. nor the names of its17#    contributors may be used to endorse or promote products derived18#    from this software without specific prior written permission.19#20# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS21# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT22# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS23# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE24# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,25# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,26# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;27# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER28# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT29# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN30# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE31# POSSIBILITY OF SUCH DAMAGE.32"""33Checks to see if core Python scripts have:341) Been installed352) Have been installed via Debians on Ubuntu363) Have not been installed via pip on Ubuntu37"""38from __future__ import print_function39import subprocess40import importlib41import os42#A dictionary of core ROS python packages and their corresponding .deb packages43py_to_deb_core_packages = {44    'catkin_pkg': 'python-catkin-pkg',45    'rospkg': 'python-rospkg',46    'rosinstall': 'python-rosinstall',47    'rosdep2': 'python-rosdep',48}49#A dictionary of release ROS python packages and their corresponding .deb packages50py_to_deb_release_packages = {51    'bloom': 'python-bloom',52    'rosrelease': 'python-rosrelease',53}54def get_host_os():55    """Determines the name of the host operating system"""56    import rospkg.os_detect57    os_detector = rospkg.os_detect.OsDetect()58    return (os_detector.detect_os())[0]59def is_host_os_ubuntu():60    """Indicates if the host operating system is Ubuntu"""61    return (get_host_os() == 'ubuntu')62def is_debian_package_installed(deb_pkg):63    """Uses dpkg to determine if a package has been installed"""64    return (subprocess.call(65        'dpkg -l ' + deb_pkg,66        shell=True,67        stdout=subprocess.PIPE,68        stderr=subprocess.PIPE) == 0)69def is_a_pip_path_on_ubuntu(path):70    """Indicates if a path (either directory or file) is in the same place71    pip installs Python code"""72    return ('/usr/local' in path)73def is_python_package_installed(python_pkg):74    """Indicates if a Python package is importable in the current75    environment."""76    try:77        importlib.import_module(python_pkg)78        return True79    except ImportError:80        return False81def is_python_package_installed_via_pip_on_ubuntu(python_pkg):82    """Indicates if am importable package has been installed through pip on83    Ubuntu"""84    try:85        pkg_handle = importlib.import_module(python_pkg)86        return is_a_pip_path_on_ubuntu(pkg_handle.__file__)87    except ImportError:88        return False89# Error/Warning Rules90def python_module_install_check(ctx):91    """Make sure core Python modules are installed"""92    warn_str = ''93    for py_pkg in py_to_deb_core_packages:94        if not is_python_package_installed(py_pkg):95            warn_str = warn_str + py_pkg + ' -- '96    if (warn_str != ''):97        return warn_str98def deb_install_check_on_ubuntu(ctx):99    """Make sure on Debian python packages are installed"""100    if (is_host_os_ubuntu()):101        warn_str = ''102        for py_pkg in py_to_deb_core_packages:103            deb_pkg = py_to_deb_core_packages[py_pkg]104            if not is_debian_package_installed(deb_pkg):105                warn_str = warn_str + py_pkg + ' (' + deb_pkg + ') -- '106        if (warn_str != ''):107            return warn_str108def pip_install_check_on_ubuntu(ctx):109    """Make sure on Ubuntu, Python packages are install with apt and not pip"""110    if (is_host_os_ubuntu()):111        warn_str = ''112        for py_pkg in dict(py_to_deb_core_packages.items() + py_to_deb_core_packages.items()):113            if is_python_package_installed_via_pip_on_ubuntu(py_pkg):114                warn_str = warn_str + py_pkg + ' -- '115        if (warn_str != ''):116            return warn_str117warnings = [118    (python_module_install_check,119     "You are missing core ROS Python modules: "),120    (pip_install_check_on_ubuntu,121     "You have pip installed packages on Ubuntu, "122     "remove and install using Debian packages: "),123    (deb_install_check_on_ubuntu,124     "You are missing Debian packages for core ROS Python modules: "),125    ]126errors = []127def wtf_check(ctx):128    """Check implementation function for roswtf"""129    from roswtf.rules import warning_rule, error_rule130    for r in warnings:131        warning_rule(r, r[0](ctx), ctx)132    for r in errors:...

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