Add redis support for distributed caching

vendor/github.com/alicebob/miniredis/v2/proto/client.go

@@ -0,0 +1,60 @@
+package proto
+
+import (
+	"bufio"
+	"crypto/tls"
+	"net"
+)
+
+type Client struct {
+	c net.Conn
+	r *bufio.Reader
+}
+
+func Dial(addr string) (*Client, error) {
+	c, err := net.Dial("tcp", addr)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Client{
+		c: c,
+		r: bufio.NewReader(c),
+	}, nil
+}
+
+func DialTLS(addr string, cfg *tls.Config) (*Client, error) {
+	c, err := tls.Dial("tcp", addr, cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Client{
+		c: c,
+		r: bufio.NewReader(c),
+	}, nil
+}
+
+func (c *Client) Close() error {
+	return c.c.Close()
+}
+
+func (c *Client) Do(cmd ...string) (string, error) {
+	if err := Write(c.c, cmd); err != nil {
+		return "", err
+	}
+	return Read(c.r)
+}
+
+func (c *Client) Read() (string, error) {
+	return Read(c.r)
+}
+
+// Do() + ReadStrings()
+func (c *Client) DoStrings(cmd ...string) ([]string, error) {
+	res, err := c.Do(cmd...)
+	if err != nil {
+		return nil, err
+	}
+	return ReadStrings(res)
+}