Merge pull request #437 from k-okada/fix_rosdep

add test to check if rosdep correctly install python-lxml, see ros/rosdistro#31569

CMakeLists.txt

@@ -10,6 +10,7 @@ if(CATKIN_ENABLE_TESTING)
   # Check if rosdep is correctly install scipy
   if ("$ENV{ROS_DISTRO}" STRGREATER "hydro") # hydro does not install pip scipy
     catkin_add_nosetests(test/test_scipy.py)
+    catkin_add_nosetests(test/test_lxml.py)
   endif()
 endif()
 

package.xml

@@ -18,6 +18,8 @@
   <build_depend condition="$ROS_PYTHON_VERSION == 3">python3</build_depend>
   <build_depend condition="$ROS_PYTHON_VERSION == 2">python-scipy</build_depend>
   <build_depend condition="$ROS_PYTHON_VERSION == 3">python3-scipy</build_depend>
+  <build_depend condition="$ROS_PYTHON_VERSION == 2">python-lxml</build_depend>
+  <build_depend condition="$ROS_PYTHON_VERSION == 3">python3-lxml</build_depend>
   <build_depend>catkin</build_depend>
   <build_depend>rostest</build_depend>
   <test_depend>rospy_tutorials</test_depend>

test/test_lxml.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from __future__ import print_function
+
+import sys
+import unittest
+
+class TestLexml(unittest.TestCase):
+
+    def test_lxml(self):
+
+        import lxml
+        print(lxml)
+        self.assertTrue('true')
+
+if __name__ == '__main__':
+    unittest.main()

travis.sh

@@ -290,6 +290,13 @@ rosdep --version
 if [ ! -e /etc/ros/rosdep/sources.list.d/20-default.list ]; then
     sudo rosdep init
 fi
+
+# use snapshot of rosdep list
+# https://github.com/ros/rosdistro/pull/31570#issuecomment-1000497517
+if [[ "$ROS_DISTRO" =~ "hydro"|"indigo"|"jade"|"kinetic"|"lunar" ]]; then
+    sudo rm /etc/ros/rosdep/sources.list.d/20-default.list
+    sudo wget https://gist.githubusercontent.com/cottsay/b27a46e53b8f7453bf9ff637d32ea283/raw/476b3714bb90cfbc6b8b9d068162fc6408fa7f76/30-xenial.list -O /etc/ros/rosdep/sources.list.d/30-xenial.list
+fi
 ret=1
 rosdep update --include-eol-distros|| while [ $ret != 0 ]; do sleep 1; rosdep update --include-eol-distros && ret=0 || echo "failed"; done