cmd, dashboard: dashboard using React, Material-UI, Recharts (#15393)

* cmd, dashboard: dashboard using React, Material-UI, Recharts

* cmd, dashboard, metrics: initial proof of concept dashboard

* dashboard: delete blobs

* dashboard: gofmt -s -w .

* dashboard: minor text and code polishes

1 files changed, 45 insertions, 0 deletions

diff --git a/dashboard/config.go b/dashboard/config.go
new file mode 100644
index 000000000..57d902aee
--- /dev/null
+++ b/dashboard/config.go
@@ -0,0 +1,45 @@
+// Copyright 2017 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package dashboard
+
+import "time"
+
+// DefaultConfig contains default settings for the dashboard.
+var DefaultConfig = Config{
+	Host:    "localhost",
+	Port:    8080,
+	Refresh: 3 * time.Second,
+}
+
+// Config contains the configuration parameters of the dashboard.
+type Config struct {
+	// Host is the host interface on which to start the dashboard server. If this
+	// field is empty, no dashboard will be started.
+	Host string `toml:",omitempty"`
+
+	// Port is the TCP port number on which to start the dashboard server. The
+	// default zero value is/ valid and will pick a port number randomly (useful
+	// for ephemeral nodes).
+	Port int `toml:",omitempty"`
+
+	// Refresh is the refresh rate of the data updates, the chartEntry will be collected this often.
+	Refresh time.Duration `toml:",omitempty"`
+
+	// Assets offers a possibility to manually set the dashboard website's location on the server side.
+	// It is useful for debugging, avoids the repeated generation of the binary.
+	Assets string `toml:",omitempty"`
+}