Milo Refactor: Remove theme support

milo/appengine/common/utils.go

+// Copyright 2015 The LUCI Authors. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
+
+package common
+
+import (
+        "fmt"
+        "net/http"
+        "strconv"
+)
+
+// GetLimit extracts the "limit", "numbuilds", or "num_builds" http param from
+// the request, or returns "-1" implying no limit was specified.
+func GetLimit(r *http.Request) (int, error) {
+        sLimit := r.FormValue("limit")
+        if sLimit == "" {
+                sLimit = r.FormValue("numbuilds")
+                if sLimit == "" {
+                        sLimit = r.FormValue("num_builds")
+                        if sLimit == "" {
+                                return -1, nil
+                        }
+                }
+        }
+        limit, err := strconv.Atoi(sLimit)
+        if err != nil {
+                return -1, fmt.Errorf("limit parameter value %q is not a number: %s", sLimit, err)
+        }
+        if limit < 0 {
+                return -1, fmt.Errorf("limit parameter value %q is less than 0", sLimit)
+        }
+        return limit, nil
+}