Milo Refactor: Remove theme support

milo/appengine/settings/utils.go

Index: milo/appengine/settings/utils.go
diff --git a/milo/appengine/settings/utils.go b/milo/appengine/settings/utils.go
new file mode 100644
index 0000000000000000000000000000000000000000..ffb96516faa12f5e7447d86921f4054bd256864c
--- /dev/null
+++ b/milo/appengine/settings/utils.go
@@ -0,0 +1,42 @@
+// 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 settings
+
+import (
+	"fmt"
+	"net/http"
+	"strconv"
+
+	"github.com/luci/luci-go/milo/common/miloerror"
+)
+
+// 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, &miloerror.Error{
+			Message: fmt.Sprintf("limit parameter value %q is not a number: %s", sLimit, err),
+			Code:    http.StatusBadRequest,
+		}
+	}
+	if limit < 0 {
+		return -1, &miloerror.Error{
+			Message: fmt.Sprintf("limit parameter value %q is less than 0", sLimit),
+			Code:    http.StatusBadRequest,
+		}
+	}
+	return limit, nil
+}