/usr/lib/python2.7/dist-packages/roswtf/plugins.py is in python-roswtf 1.11.16-3.
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"""
Plugin loader for roswtf.
"""
from __future__ import print_function
import os
import sys
import roslib
import rospkg
def load_plugins():
"""
@return: list of static roswtf plugins, list of online
roswtf plugins
@rtype: [fn], [fn]
"""
rospack = rospkg.RosPack()
to_check = rospack.get_depends_on('roswtf', implicit=False)
static_plugins = []
online_plugins = []
for pkg in to_check:
m = rospack.get_manifest(pkg)
p_module = m.get_export('roswtf', 'plugin')
if not p_module:
continue
elif len(p_module) != 1:
print("Cannot load plugin [%s]: invalid 'plugin' attribute"%(pkg), file=sys.stderr)
continue
p_module = p_module[0]
try:
# load that packages namespace
roslib.load_manifest(pkg)
# import the specified plugin module
mod = __import__(p_module)
for sub_mod in p_module.split('.')[1:]:
mod = getattr(mod, sub_mod)
# retrieve the roswtf_plugin_static and roswtf_plugin_online functions
s_attr = o_attr = None
try:
s_attr = getattr(mod, 'roswtf_plugin_static')
except AttributeError: pass
try:
o_attr = getattr(mod, 'roswtf_plugin_online')
except AttributeError: pass
if s_attr:
static_plugins.append(s_attr)
if o_attr:
online_plugins.append(o_attr)
if s_attr is None and o_attr is None:
print("Cannot load plugin [%s]: no 'roswtf_plugin_static' or 'roswtf_plugin_online' attributes [%s]"%(p_module), file=sys.stderr)
else:
print("Loaded plugin", p_module)
except Exception:
print("Unable to load plugin [%s] from package [%s]"%(p_module, pkg), file=sys.stderr)
return static_plugins, online_plugins
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