Introduce BUILD_DAILY_DOC environment var used to differentiate relea…

…se from daily build doc

modules/python/doc/conf.py.in

@@ -16,7 +16,7 @@
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 import sys
 import os
-
+from datetime import date
 
 # If your documentation needs a minimal Sphinx version, state it here.
 # needs_sphinx = '1.0'
@@ -91,6 +91,14 @@ version = "@VISP_PYTHON_VERSION@"
 # The full version, including alpha/beta/rc tags.
 release = "@VISP_PYTHON_VERSION@"
 
+BUILD_DAILY_DOC = os.getenv('BUILD_DAILY_DOC')
+if BUILD_DAILY_DOC != None:
+  print("Create doc for daily build")
+  today = date.today()
+  release = "@VISP_PYTHON_VERSION@ under development (" + str(today) + ")"
+else:
+  print("Create doc for release")
+
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
 #