Scrapped plugin design in favour of simple command interfaces.

Setup docker build process for running server.
Deleted test files.

server/command_ping.go

@@ -0,0 +1,43 @@
+package main
+
+import "bufio"
+
+type PingCommand struct {
+	name        string
+	commands    []string
+	description string
+}
+
+func (p *PingCommand) Name() string {
+	return p.name
+}
+
+func (p *PingCommand) Commands() []string {
+	return p.commands
+}
+
+func (p *PingCommand) Description() string {
+	return p.description
+}
+
+func (p *PingCommand) HandleCommand(cmd []string, server *Server, conn *bufio.Writer) {
+	switch len(cmd) {
+	default:
+		conn.Write([]byte("-Error wrong number of arguments for PING command\r\n\n"))
+		conn.Flush()
+	case 1:
+		conn.Write([]byte("+PONG\r\n\n"))
+		conn.Flush()
+	case 2:
+		conn.Write([]byte("+" + cmd[1] + "\r\n\n"))
+		conn.Flush()
+	}
+}
+
+func NewPingCommand() *PingCommand {
+	return &PingCommand{
+		name:        "PingCommand",
+		commands:    []string{"ping"},
+		description: "Handle PING command",
+	}
+}