Fix missing IOU documentation

Fix #143

gns3server/handlers/__init__.py

@@ -30,5 +30,5 @@ from gns3server.handlers.api.server_handler import ServerHandler
 from gns3server.handlers.upload_handler import UploadHandler
 from gns3server.handlers.index_handler import IndexHandler
 
-if sys.platform.startswith("linux") or hasattr(sys, "_called_from_test"):
+if sys.platform.startswith("linux") or hasattr(sys, "_called_from_test") or os.environ.get("PYTEST_BUILD_DOCUMENTATION") == "1":
     from gns3server.handlers.api.iou_handler import IOUHandler

gns3server/modules/__init__.py

@@ -16,6 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import sys
+import os
 from .vpcs import VPCS
 from .virtualbox import VirtualBox
 from .dynamips import Dynamips
@@ -23,7 +24,7 @@ from .qemu import Qemu
 
 MODULES = [VPCS, VirtualBox, Dynamips, Qemu]
 
-if sys.platform.startswith("linux") or hasattr(sys, "_called_from_test"):
+if sys.platform.startswith("linux") or hasattr(sys, "_called_from_test") or os.environ.get("PYTEST_BUILD_DOCUMENTATION") == "1":
     # IOU runs only on Linux
     from .iou import IOU
     MODULES.append(IOU)

gns3server/web/documentation.py

@@ -37,6 +37,7 @@ class Documentation(object):
 
     def write(self):
         for handler_name in sorted(self._documentation):
+            print("Build {}".format(handler_name))
 
             for path in sorted(self._documentation[handler_name]):