Rewrite everything from scratch for mqtt v5

vendor/github.com/alicebob/miniredis/v2/cmd_server.go

@@ -0,0 +1,112 @@
+// Commands from https://redis.io/commands#server
+
+package miniredis
+
+import (
+	"strconv"
+	"strings"
+
+	"github.com/alicebob/miniredis/v2/server"
+)
+
+func commandsServer(m *Miniredis) {
+	m.srv.Register("COMMAND", m.cmdCommand)
+	m.srv.Register("DBSIZE", m.cmdDbsize)
+	m.srv.Register("FLUSHALL", m.cmdFlushall)
+	m.srv.Register("FLUSHDB", m.cmdFlushdb)
+	m.srv.Register("INFO", m.cmdInfo)
+	m.srv.Register("TIME", m.cmdTime)
+}
+
+// DBSIZE
+func (m *Miniredis) cmdDbsize(c *server.Peer, cmd string, args []string) {
+	if len(args) > 0 {
+		setDirty(c)
+		c.WriteError(errWrongNumber(cmd))
+		return
+	}
+	if !m.handleAuth(c) {
+		return
+	}
+	if m.checkPubsub(c, cmd) {
+		return
+	}
+
+	withTx(m, c, func(c *server.Peer, ctx *connCtx) {
+		db := m.db(ctx.selectedDB)
+
+		c.WriteInt(len(db.keys))
+	})
+}
+
+// FLUSHALL
+func (m *Miniredis) cmdFlushall(c *server.Peer, cmd string, args []string) {
+	if len(args) > 0 && strings.ToLower(args[0]) == "async" {
+		args = args[1:]
+	}
+	if len(args) > 0 {
+		setDirty(c)
+		c.WriteError(msgSyntaxError)
+		return
+	}
+	if !m.handleAuth(c) {
+		return
+	}
+	if m.checkPubsub(c, cmd) {
+		return
+	}
+
+	withTx(m, c, func(c *server.Peer, ctx *connCtx) {
+		m.flushAll()
+		c.WriteOK()
+	})
+}
+
+// FLUSHDB
+func (m *Miniredis) cmdFlushdb(c *server.Peer, cmd string, args []string) {
+	if len(args) > 0 && strings.ToLower(args[0]) == "async" {
+		args = args[1:]
+	}
+	if len(args) > 0 {
+		setDirty(c)
+		c.WriteError(msgSyntaxError)
+		return
+	}
+	if !m.handleAuth(c) {
+		return
+	}
+	if m.checkPubsub(c, cmd) {
+		return
+	}
+
+	withTx(m, c, func(c *server.Peer, ctx *connCtx) {
+		m.db(ctx.selectedDB).flush()
+		c.WriteOK()
+	})
+}
+
+// TIME
+func (m *Miniredis) cmdTime(c *server.Peer, cmd string, args []string) {
+	if len(args) > 0 {
+		setDirty(c)
+		c.WriteError(errWrongNumber(cmd))
+		return
+	}
+	if !m.handleAuth(c) {
+		return
+	}
+	if m.checkPubsub(c, cmd) {
+		return
+	}
+
+	withTx(m, c, func(c *server.Peer, ctx *connCtx) {
+		now := m.effectiveNow()
+		nanos := now.UnixNano()
+		seconds := nanos / 1_000_000_000
+		microseconds := (nanos / 1_000) % 1_000_000
+
+		c.WriteLen(2)
+		c.WriteBulk(strconv.FormatInt(seconds, 10))
+		c.WriteBulk(strconv.FormatInt(microseconds, 10))
+	})
+}