backoffice: include version number and gpl intro text in sidebar (#6726)

wcs/backoffice/root.py

@@ -283,12 +283,28 @@ class RootDirectory(BackofficeRootDirectory):
 
 
     def get_sidebar(self):
+        from qommon.admin.menu import get_vc_version
+        from wcs.admin.root import gpl
         r = TemplateIO(html=True)
+
         r += htmltext('<div class="bo-block">')
         r += htmltext('<ul id="sidebar-actions">')
         r += htmltext('<li><a href="statistics">%s</a></li>') % _('Global statistics')
         r += htmltext('</ul>')
         r += htmltext('</div>')
+
+        version = get_vc_version()
+        if version:
+            r += htmltext('<div class="bo-block"><p class="version-info">')
+            r += _('Version:')
+            r += ' '
+            r += version
+            r += htmltext('</p></div>')
+
+        r += htmltext('<div class="bo-block">')
+        r += gpl()
+        r += htmltext('</div>')
+
         return r.getvalue()
 
     def management(self):