Refactor of all code for new d3 visualization, now if you want to ena…

…ble d3 graph you need to set in the config visualization_graph in the [core] section either svg (defaults) or d3. This will tell tornado to return as default home either visualization, in any case regarless of this config param value, you can always to either /static/visualiser/index.html or /static/visualiser/index.d3.html in your browser.

examples/foo.complex.py

@@ -0,0 +1,74 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright 2012-2015 Spotify AB
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import os
+import shutil
+import time
+import random
+
+import luigi
+
+max_depth = 10
+max_total_nodes = 50
+current_nodes = 0
+
+
+class Foo(luigi.Task):
+
+    def run(self):
+        print "Running Foo"
+
+    def requires(self):
+        global current_nodes
+        for i in xrange(30 / max_depth):
+            current_nodes += 1
+            yield Bar(i)
+
+
+class Bar(luigi.Task):
+
+    num = luigi.IntParameter()
+
+    def run(self):
+        time.sleep(1)
+        self.output().open('w').close()
+
+    def requires(self):
+        global current_nodes
+
+        if max_total_nodes > current_nodes:
+            valor = int(random.uniform(1, 30))
+            for i in xrange(valor / max_depth):
+                current_nodes += 1
+                yield Bar(current_nodes)
+
+    def output(self):
+        """
+       Returns the target output for this task.
+
+       :return: the target output for this task.
+       :rtype: object (:py:class:`~luigi.target.Target`)
+       """
+        time.sleep(1)
+        return luigi.LocalTarget('/tmp/bar/%d' % self.num)
+
+
+if __name__ == "__main__":
+    if os.path.exists('/tmp/bar'):
+        shutil.rmtree('/tmp/bar')
+
+    luigi.run(['--task', 'Foo', '--workers', '2'], use_optparse=True)

luigi/server.py

@@ -214,7 +214,11 @@ def get(self, path):
 class RootPathHandler(tornado.web.RequestHandler):
 
     def get(self):
-        self.redirect("/static/visualiser/index.html")
+        visualization_graph = configuration.get_config().get('core', 'visualization_graph', '')
+        if visualization_graph == "d3":
+            self.redirect("/static/visualiser/index.d3.html")
+        else:
+            self.redirect("/static/visualiser/index.html")
 
 
 def app(scheduler):

luigi/static/visualiser/css/tipsy.css

@@ -0,0 +1,25 @@
+.tipsy { font-size: 10px; position: absolute; padding: 5px; z-index: 100000; }
+  .tipsy-inner { background-color: #000; color: #FFF; max-width: 200px; padding: 5px 8px 4px 8px; text-align: center; }
+
+  /* Rounded corners */
+  .tipsy-inner { border-radius: 3px; -moz-border-radius: 3px; -webkit-border-radius: 3px; }
+
+  /* Uncomment for shadow */
+  .tipsy-inner { box-shadow: 0 0 5px #000000; -webkit-box-shadow: 0 0 5px #000000; -moz-box-shadow: 0 0 5px #000000; }
+
+  .tipsy-arrow { position: absolute; width: 0; height: 0; line-height: 0; border: 5px dashed #000; }
+
+  /* Rules to colour arrows */
+  .tipsy-arrow-n { border-bottom-color: #000; }
+  .tipsy-arrow-s { border-top-color: #000; }
+  .tipsy-arrow-e { border-left-color: #000; }
+  .tipsy-arrow-w { border-right-color: #000; }
+
+	.tipsy-n .tipsy-arrow { top: 0px; left: 50%; margin-left: -5px; border-bottom-style: solid; border-top: none; border-left-color: transparent; border-right-color: transparent; }
+    .tipsy-nw .tipsy-arrow { top: 0; left: 10px; border-bottom-style: solid; border-top: none; border-left-color: transparent; border-right-color: transparent;}
+    .tipsy-ne .tipsy-arrow { top: 0; right: 10px; border-bottom-style: solid; border-top: none;  border-left-color: transparent; border-right-color: transparent;}
+  .tipsy-s .tipsy-arrow { bottom: 0; left: 50%; margin-left: -5px; border-top-style: solid; border-bottom: none;  border-left-color: transparent; border-right-color: transparent; }
+    .tipsy-sw .tipsy-arrow { bottom: 0; left: 10px; border-top-style: solid; border-bottom: none;  border-left-color: transparent; border-right-color: transparent; }
+    .tipsy-se .tipsy-arrow { bottom: 0; right: 10px; border-top-style: solid; border-bottom: none; border-left-color: transparent; border-right-color: transparent; }
+  .tipsy-e .tipsy-arrow { right: 0; top: 50%; margin-top: -5px; border-left-style: solid; border-right: none; border-top-color: transparent; border-bottom-color: transparent; }
+  .tipsy-w .tipsy-arrow { left: 0; top: 50%; margin-top: -5px; border-right-style: solid; border-left: none; border-top-color: transparent; border-bottom-color: transparent; }