Link documentation to H2O repo build hash

src/core/components/about.coffee

@@ -4,17 +4,23 @@ Flow.About = (_) ->
   _properties = signals []
 
   link _.ready, ->
-    _.requestAbout (error, response) ->
+    if Flow.Version
+      _properties Flow.Version
+    else
+      _.requestAbout (error, response) ->
+        properties = []
 
-      unless error
-        for { name, value } in response.entries
-          _properties.push
-            caption: 'H2O ' + name
-            value: value
+        unless error
+          for { name, value } in response.entries
+            properties.push
+              caption: 'H2O ' + name
+              value: value
 
-      _properties.push
-        caption: 'Flow version'
-        value: FLOW_VERSION
+        properties.push
+          caption: 'Flow version'
+          value: FLOW_VERSION
+
+        _properties Flow.Version = properties
 
   properties: _properties
 

src/core/components/notebook.coffee

@@ -288,6 +288,15 @@ Flow.Notebook = (_, _renderers) ->
   displayKeyboardShortcuts = ->
     $('#keyboardShortcutsDialog').modal()
 
+  displayDocumentation = ->
+    hash = if Flow.Version
+      hashEntry = find Flow.Version, (entry) -> entry.caption is 'H2O Build git hash'
+      if hashEntry then hashEntry.value else 'master'
+    else
+      'master'
+
+    window.open "https://github.com/h2oai/h2o-dev/blob/#{hash}/h2o-docs/src/product/flow/README.md", '_blank'
+
   executeCommand = (command) -> ->
     _.insertAndExecuteCell 'cs', command
 
@@ -432,7 +441,7 @@ Flow.Notebook = (_, _renderers) ->
       createMenuItem 'Contents', showHelp
       createMenuItem 'Keyboard Shortcuts', displayKeyboardShortcuts
       menuDivider
-      createMenuItem 'H2O Documentation', goToUrl 'http://docs.h2o.ai/'
+      createMenuItem 'H2O Documentation', displayDocumentation
       createMenuItem 'h2o.ai', goToUrl 'http://h2o.ai/'
       menuDivider
       createMenuItem 'About', displayAbout