Summarize OS

main.go

@@ -225,6 +225,9 @@ func reportHandler(w http.ResponseWriter, r *http.Request) {
 func statsForInts(data []int) map[string]int {
 	sort.Ints(data)
 	res := make(map[string]int, 4)
+	if len(data) == 0 {
+		return res
+	}
 	res["fp"] = data[int(float64(len(data))*0.05)]
 	res["med"] = data[len(data)/2]
 	res["nfp"] = data[int(float64(len(data))*0.95)]
@@ -235,6 +238,9 @@ func statsForInts(data []int) map[string]int {
 func statsForFloats(data []float64) map[string]float64 {
 	sort.Float64s(data)
 	res := make(map[string]float64, 4)
+	if len(data) == 0 {
+		return res
+	}
 	res["fp"] = data[int(float64(len(data))*0.05)]
 	res["med"] = data[len(data)/2]
 	res["nfp"] = data[int(float64(len(data))*0.95)]

static/app.js

@@ -34,11 +34,27 @@ reports.controller('ReportsCtrl', function ($scope, $http) {
 		$scope.versions = sortedList(data.versions);
 		$scope.platforms = sortedList(data.platforms);
 
+		var os = aggregate(data.platforms, function (x) {return x.replace(/-.*/, '');})
+		$scope.os = sortedList(os);
+
 	}).error(function () {
 		$scope.failure = true;
 	});
 });
 
+function aggregate(d, f) {
+	var r = {};
+	for (var o in d) {
+		var k = f(o);
+		if (k in r) {
+			r[k] += d[o];
+		} else {
+			r[k] = d[o];
+		}
+	}
+	return r;
+}
+
 function sortedList(d) {
 	var l = [];
 	var tot = 0;

static/index.html

@@ -52,7 +52,7 @@ found in the LICENSE file.
     </div>
 
     <div class="row">
-      <div class="col-md-6">
+      <div class="col-md-4">
         <table class="table table-striped">
           <thead>
             <tr>
@@ -68,7 +68,7 @@ found in the LICENSE file.
           </tbody>
         </table>
       </div>
-      <div class="col-md-6">
+      <div class="col-md-4">
         <table class="table table-striped">
           <thead>
             <tr>
@@ -84,6 +84,22 @@ found in the LICENSE file.
           </tbody>
         </table>
       </div>
+      <div class="col-md-4">
+        <table class="table table-striped">
+          <thead>
+            <tr>
+              <th>OS</th><th class="text-right">Nodes</th><th class="text-right">Share</th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr ng-repeat="p in os">
+              <td>{{p[0]}}</td>
+              <td class="text-right">{{p[1]}}</td>
+              <td class="text-right">{{p[2] | number:2}}%</td>
+            </tr>
+          </tbody>
+        </table>
+      </div>
     </div>
   </div>