Skipping python tests when -DskipTests=true

fixes #2392

Author: tulinkry

opengrok-tools/pom.xml

@@ -94,30 +94,17 @@ Portions Copyright (c) 2017-2018, Chris Fraire <[email protected]>.
                         </configuration>
                         <phase>package</phase>
                     </execution>
-                    <execution>
-                        <id>pre-python-test</id>
-                        <configuration>
-                            <executable>env/bin/python</executable>
-                            <workingDirectory>${project.build.directory}/../</workingDirectory>
-                            <arguments>
-                                <argument>setup.py</argument>
-                                <argument>install</argument>
-                            </arguments>
-                        </configuration>
-                        <phase>test</phase>
-                        <goals>
-                            <goal>exec</goal>
-                        </goals>
-                    </execution>
                     <execution>
                         <id>python-test</id>
                         <configuration>
                             <executable>env/bin/python</executable>
                             <workingDirectory>${project.build.directory}/../</workingDirectory>
                             <arguments>
                                 <argument>setup.py</argument>
+                                <argument>install</argument>
                                 <argument>test</argument>
                             </arguments>
+                            <skip>${skipTests}</skip>
                         </configuration>
                         <phase>test</phase>
                         <goals>