Add dropdown button into navbar.html

Add dropdown button into navbar.html and create make versions to make
all python-openflow releases

Author: macartur

CHANGELOG.rst

@@ -12,6 +12,7 @@ Added
 Changed
 =======
 - Raise ValueError if not using bytes (e.g. string) in BinaryData.
+- Changed docs to show a dropdown button with all python-openflow releases.
 
 Deprecated
 ==========

docs/Makefile

@@ -6,6 +6,8 @@ SPHINXOPTS    =
 SPHINXBUILD   = sphinx-build
 PAPER         =
 BUILDDIR      = _build
+VERSIONS      = master,bethania
+MAIN_REF      = bethania
 
 # User-friendly check for sphinx-build
 ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)
@@ -53,6 +55,17 @@ help:
 	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
 	@echo "  coverage   to run coverage check of the documentation (if enabled)"
 	@echo "  dummy      to check syntax errors of document sources"
+	@echo "  versions   to make all docs HTML files"
+
+.PHONY: versions
+versions:
+	rm python-openflow -rf && mkdir python-openflow
+	for version in `echo $(VERSIONS) | sed 's/,/ /g'`; do \
+		git checkout $$version \
+		&& make SPHINXOPTS="-A versions=\"$(VERSIONS)\" -A current_version=\"$$version\"" \
+		&& mv _build/dirhtml python-openflow/$$version; \
+	done
+	cp python-openflow/$(MAIN_REF)/* python-openflow/ -R
 
 .PHONY: clean
 clean:

docs/_static/css/kytos.css

@@ -16,6 +16,13 @@
   background: #68286a;
 }
 
+.navbar-kytos #dropdown-versions {
+  background-color: #322c5d;
+  border-color: #4D4778;
+  margin-top: 3%;
+  margin-left: 4%;
+}
+
 .navbar-kytos .navbar-brand {
   -webkit-transition: all .3s;
   -moz-transition: all .3s;

docs/_templates/navbar.html

@@ -18,6 +18,18 @@
     </div>
 
       <div class="collapse navbar-collapse nav-collapse">
+        {% if versions %}
+          <div class="dropdown pull-right">
+            <button id="dropdown-versions" class="btn btn-primary dropdown-toggle" type="button" data-toggle="dropdown"> {{ current_version }}
+            <span class="caret"></span></button>
+            <ul class="dropdown-menu">
+              {%- for version in versions.split(',') %}
+                <li><a href="/python-openflow/{{version}}">{{ version }}</a></li>
+              {%- endfor %}
+            </ul>
+          </div>
+        {% endif %}
+
         {% block navbarsearch %}
           {% include "navbarsearchbox.html" %}
         {% endblock %}