Add support for COMMAND GETKEYS & COMMAND GETKEYSANDFLAGS (#2500)

* feat: Adding support for CommandsGetKeysAndFlags & CommandGetKeys

Co-authored-by: Anuragkillswitch <70265851+Anuragkillswitch@users.noreply.github.com>

command.go

@@ -4168,3 +4168,81 @@ func (cmd *LCSCmd) readPosition(rd *proto.Reader) (pos LCSPosition, err error) {
 
 	return pos, nil
 }
+
+// ------------------------------------------------------------------------
+
+type KeyFlags struct {
+	Key   string
+	Flags []string
+}
+
+type KeyFlagsCmd struct {
+	baseCmd
+
+	val []KeyFlags
+}
+
+var _ Cmder = (*KeyFlagsCmd)(nil)
+
+func NewKeyFlagsCmd(ctx context.Context, args ...interface{}) *KeyFlagsCmd {
+	return &KeyFlagsCmd{
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
+	}
+}
+
+func (cmd *KeyFlagsCmd) SetVal(val []KeyFlags) {
+	cmd.val = val
+}
+
+func (cmd *KeyFlagsCmd) Val() []KeyFlags {
+	return cmd.val
+}
+
+func (cmd *KeyFlagsCmd) Result() ([]KeyFlags, error) {
+	return cmd.val, cmd.err
+}
+
+func (cmd *KeyFlagsCmd) String() string {
+	return cmdString(cmd, cmd.val)
+}
+
+func (cmd *KeyFlagsCmd) readReply(rd *proto.Reader) error {
+	n, err := rd.ReadArrayLen()
+	if err != nil {
+		return err
+	}
+
+	if n == 0 {
+		cmd.val = make([]KeyFlags, 0)
+		return nil
+	}
+
+	cmd.val = make([]KeyFlags, n)
+
+	for i := 0; i < len(cmd.val); i++ {
+
+		if err = rd.ReadFixedArrayLen(2); err != nil {
+			return err
+		}
+
+		if cmd.val[i].Key, err = rd.ReadString(); err != nil {
+			return err
+		}
+		flagsLen, err := rd.ReadArrayLen()
+		if err != nil {
+			return err
+		}
+		cmd.val[i].Flags = make([]string, flagsLen)
+
+		for j := 0; j < flagsLen; j++ {
+			if cmd.val[i].Flags[j], err = rd.ReadString(); err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}

commands.go

@@ -129,6 +129,8 @@ type Cmdable interface {
 
 	Command(ctx context.Context) *CommandsInfoCmd
 	CommandList(ctx context.Context, filter *FilterBy) *StringSliceCmd
+	CommandGetKeys(ctx context.Context, commands ...interface{}) *StringSliceCmd
+	CommandGetKeysAndFlags(ctx context.Context, commands ...interface{}) *KeyFlagsCmd
 	ClientGetName(ctx context.Context) *StringCmd
 	Echo(ctx context.Context, message interface{}) *StringCmd
 	Ping(ctx context.Context) *StatusCmd
@@ -568,6 +570,26 @@ func (c cmdable) CommandList(ctx context.Context, filter *FilterBy) *StringSlice
 	return cmd
 }
 
+func (c cmdable) CommandGetKeys(ctx context.Context, commands ...interface{}) *StringSliceCmd {
+	args := make([]interface{}, 2+len(commands))
+	args[0] = "command"
+	args[1] = "getkeys"
+	copy(args[2:], commands)
+	cmd := NewStringSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) CommandGetKeysAndFlags(ctx context.Context, commands ...interface{}) *KeyFlagsCmd {
+	args := make([]interface{}, 2+len(commands))
+	args[0] = "command"
+	args[1] = "getkeysandflags"
+	copy(args[2:], commands)
+	cmd := NewKeyFlagsCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
 // ClientGetName returns the name of the connection.
 func (c cmdable) ClientGetName(ctx context.Context) *StringCmd {
 	cmd := NewStringCmd(ctx, "client", "getname")

commands_test.go

@@ -132,6 +132,43 @@ var _ = Describe("Commands", func() {
 			}, "30s").Should(Equal("Background saving started"))
 		})
 
+		It("Should CommandGetKeys", func() {
+			keys, err := client.CommandGetKeys(ctx, "MSET", "a", "b", "c", "d", "e", "f").Result()
+			Expect(err).NotTo(HaveOccurred())
+			Expect(keys).To(Equal([]string{"a", "c", "e"}))
+
+			keys, err = client.CommandGetKeys(ctx, "EVAL", "not consulted", "3", "key1", "key2", "key3", "arg1", "arg2", "arg3", "argN").Result()
+			Expect(err).NotTo(HaveOccurred())
+			Expect(keys).To(Equal([]string{"key1", "key2", "key3"}))
+
+			keys, err = client.CommandGetKeys(ctx, "SORT", "mylist", "ALPHA", "STORE", "outlist").Result()
+			Expect(err).NotTo(HaveOccurred())
+			Expect(keys).To(Equal([]string{"mylist", "outlist"}))
+
+			_, err = client.CommandGetKeys(ctx, "FAKECOMMAND", "arg1", "arg2").Result()
+			Expect(err).To(HaveOccurred())
+			Expect(err).To(MatchError("ERR Invalid command specified"))
+		})
+
+		It("should CommandGetKeysAndFlags", func() {
+			keysAndFlags, err := client.CommandGetKeysAndFlags(ctx, "LMOVE", "mylist1", "mylist2", "left", "left").Result()
+			Expect(err).NotTo(HaveOccurred())
+			Expect(keysAndFlags).To(Equal([]redis.KeyFlags{
+				{
+					Key:   "mylist1",
+					Flags: []string{"RW", "access", "delete"},
+				},
+				{
+					Key:   "mylist2",
+					Flags: []string{"RW", "insert"},
+				},
+			}))
+
+			_, err = client.CommandGetKeysAndFlags(ctx, "FAKECOMMAND", "arg1", "arg2").Result()
+			Expect(err).To(HaveOccurred())
+			Expect(err).To(MatchError("ERR Invalid command specified"))
+		})
+
 		It("should ClientKill", func() {
 			r := client.ClientKill(ctx, "1.1.1.1:1111")
 			Expect(r.Err()).To(MatchError("ERR No such client"))