pkg_version.py

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#! /usr/bin/python
import os
import rospkg
import subprocess
import xml.etree.ElementTree as ET


def versionSupport(pkg):
        if pkg in rospack.list() or pkg in rosstack.list():
                try:
                        os.chdir(rospack.get_path(pkg))
                except:
                        os.chdir(rosstack.get_path(pkg))
                finally:
                        #  Checks if we are in a Git repository
                        if (subprocess.call(['git', 'branch'], stderr=subprocess.STDOUT, stdout=open(os.devnull, 'w')) == 0):
                                proc = subprocess.Popen(['git', 'describe', '--tags'], stdout=subprocess.PIPE, stderr=open(os.devnull, 'w'))
                        else:
                                proc = subprocess.Popen(['rosversion', pkg], stdout=subprocess.PIPE)
                        version = proc.communicate()[0].rstrip()

                        if (version == '<unversioned>' and os.path.isfile('package.xml')):
                                tree = ET.parse('package.xml').getroot()        
                                version = tree.find('version').text
                        print("(%s) - %s" % (pkg, version))
        else:
                print("(%s) - Not found." % pkg)


pkgs = ['move_basic', 
        'ubiquity_motor',
        'fiducials',
        'magni_robot',
        'fiducial_slam',
        'raspicam_node',
        'pi_sonar',
        'oled_display_node',
        'dnn_detect']

if __name__ == '__main__':

        rospack = rospkg.RosPack()
        rosstack = rospkg.RosStack()
        try:
                from joblib import Parallel, delayed
                Parallel(n_jobs=-1)(delayed(versionSupport)(pkg) for pkg in pkgs)

        except ImportError:
                for pkg in pkgs:
                        versionSupport(pkg)