// ZSCORE
func (m *Miniredis) cmdZscore(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
member := r.Args[1]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteNil()
return
}
if db.t(key) != "zset" {
out.WriteErrorString(ErrWrongType.Error())
return
}
if !db.ssetExists(key, member) {
out.WriteNil()
return
}
out.WriteString(formatFloat(db.ssetScore(key, member)))
})
}
// RPOPLPUSH
func (m *Miniredis) cmdRpoplpush(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
src := r.Args[0]
dst := r.Args[1]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(src) {
out.WriteNil()
return
}
if db.t(src) != "list" || (db.exists(dst) && db.t(dst) != "list") {
out.WriteErrorString(msgWrongType)
return
}
elem := db.listPop(src)
db.listLpush(dst, elem)
out.WriteString(elem)
})
}
// RPUSHX
func (m *Miniredis) cmdRpushx(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
value := r.Args[1]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteZero()
return
}
if db.t(key) != "list" {
out.WriteErrorString(msgWrongType)
return
}
newLen := db.listPush(key, value)
out.WriteInt(newLen)
})
}
// HMGET
func (m *Miniredis) cmdHmget(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) < 2 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'hmget' command")
return nil
}
key := r.Args[0]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if t, ok := db.keys[key]; ok && t != "hash" {
out.WriteErrorString(msgWrongType)
return
}
f, ok := db.hashKeys[key]
if !ok {
f = map[string]string{}
}
out.WriteBulkLen(len(r.Args) - 1)
for _, k := range r.Args[1:] {
v, ok := f[k]
if !ok {
out.WriteNil()
continue
}
out.WriteString(v)
}
})
}
// LLEN
func (m *Miniredis) cmdLlen(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 1 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
t, ok := db.keys[key]
if !ok {
// No such key. That's zero length.
out.WriteZero()
return
}
if t != "list" {
out.WriteErrorString(msgWrongType)
return
}
out.WriteInt(len(db.listKeys[key]))
})
}
// HEXISTS
func (m *Miniredis) cmdHexists(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 2 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'hexists' command")
return nil
}
key := r.Args[0]
field := r.Args[1]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
t, ok := db.keys[key]
if !ok {
out.WriteInt(0)
return
}
if t != "hash" {
out.WriteErrorString(msgWrongType)
return
}
if _, ok := db.hashKeys[key][field]; !ok {
out.WriteInt(0)
return
}
out.WriteInt(1)
})
}
// HVALS
func (m *Miniredis) cmdHvals(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 1 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'hvals' command")
return nil
}
key := r.Args[0]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
t, ok := db.keys[key]
if !ok {
out.WriteBulkLen(0)
return
}
if t != "hash" {
out.WriteErrorString(msgWrongType)
return
}
out.WriteBulkLen(len(db.hashKeys[key]))
for _, v := range db.hashKeys[key] {
out.WriteString(v)
}
})
}
// LPUSHX
func (m *Miniredis) cmdLpushx(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 2 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'lpushx' command")
return nil
}
key := r.Args[0]
value := r.Args[1]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteZero()
return
}
if db.t(key) != "list" {
out.WriteErrorString(msgWrongType)
return
}
newLen := db.listLpush(key, value)
out.WriteInt(newLen)
})
}
// PSETEX
func (m *Miniredis) cmdPsetex(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 3 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
ttl, err := strconv.Atoi(r.Args[1])
if err != nil {
setDirty(r.Client())
out.WriteErrorString(msgInvalidInt)
return nil
}
value := r.Args[2]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
db.del(key, true) // Clear any existing keys.
db.stringSet(key, value)
db.expire[key] = ttl // We put millisecond keys in with the second keys.
out.WriteOK()
})
}
// SDIFF
func (m *Miniredis) cmdSdiff(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) < 1 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
keys := r.Args
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
set, err := db.setDiff(keys)
if err != nil {
out.WriteErrorString(err.Error())
return
}
out.WriteBulkLen(len(set))
for k := range set {
out.WriteString(k)
}
})
}
// LPOP
func (m *Miniredis) cmdLpop(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 1 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'lpop' command")
return nil
}
key := r.Args[0]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
// Non-existing key is fine.
out.WriteNil()
return
}
if db.t(key) != "list" {
out.WriteErrorString(msgWrongType)
return
}
elem := db.listLpop(key)
out.WriteString(elem)
})
}
// SCARD
func (m *Miniredis) cmdScard(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 1 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteZero()
return
}
if db.t(key) != "set" {
out.WriteErrorString(ErrWrongType.Error())
return
}
members := db.setMembers(key)
out.WriteInt(len(members))
})
}
// SUNIONSTORE
func (m *Miniredis) cmdSunionstore(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) < 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
dest := r.Args[0]
keys := r.Args[1:]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
set, err := db.setUnion(keys)
if err != nil {
out.WriteErrorString(err.Error())
return
}
db.del(dest, true)
db.setSet(dest, set)
out.WriteInt(len(set))
})
}
// SREM
func (m *Miniredis) cmdSrem(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) < 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
fields := r.Args[1:]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteInt(0)
return
}
if db.t(key) != "set" {
out.WriteErrorString(ErrWrongType.Error())
return
}
out.WriteInt(db.setRem(key, fields...))
})
}
// SREM
func (m *Miniredis) cmdSrem(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) < 2 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'srem' command")
return nil
}
key := r.Args[0]
fields := r.Args[1:]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteInt(0)
return
}
if db.t(key) != "set" {
out.WriteErrorString(ErrWrongType.Error())
return
}
out.WriteInt(db.setRem(key, fields...))
})
}
// MSET
func (m *Miniredis) cmdMset(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) < 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
if len(r.Args)%2 != 0 {
setDirty(r.Client())
// non-default error message
out.WriteErrorString("ERR wrong number of arguments for MSET")
return nil
}
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
for len(r.Args) > 0 {
key := r.Args[0]
value := r.Args[1]
r.Args = r.Args[2:]
db.del(key, true) // clear TTL
db.stringSet(key, value)
}
out.WriteOK()
})
}
// SCARD
func (m *Miniredis) cmdScard(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 1 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'scard' command")
return nil
}
key := r.Args[0]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteZero()
return
}
if db.t(key) != "set" {
out.WriteErrorString(ErrWrongType.Error())
return
}
members := db.setMembers(key)
out.WriteInt(len(members))
})
}
// GETSET
func (m *Miniredis) cmdGetset(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
value := r.Args[1]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if t, ok := db.keys[key]; ok && t != "string" {
out.WriteErrorString(msgWrongType)
return
}
old, ok := db.stringKeys[key]
db.stringSet(key, value)
// a GETSET clears the expire
delete(db.expire, key)
if !ok {
out.WriteNil()
return
}
out.WriteString(old)
return
})
}
// HKEYS
func (m *Miniredis) cmdHkeys(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 1 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'hkeys' command")
return nil
}
key := r.Args[0]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteBulkLen(0)
return
}
if db.t(key) != "hash" {
out.WriteErrorString(msgWrongType)
return
}
fields := db.hashFields(key)
out.WriteBulkLen(len(fields))
for _, f := range fields {
out.WriteString(f)
}
})
}
// DECR
func (m *Miniredis) cmdDecr(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 1 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
key := r.Args[0]
if t, ok := db.keys[key]; ok && t != "string" {
out.WriteErrorString(msgWrongType)
return
}
v, err := db.stringIncr(key, -1)
if err != nil {
out.WriteErrorString(err.Error())
return
}
// Don't touch TTL
out.WriteInt(v)
})
}
// HSET
func (m *Miniredis) cmdHset(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 3 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'hset' command")
return nil
}
key := r.Args[0]
field := r.Args[1]
value := r.Args[2]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if t, ok := db.keys[key]; ok && t != "hash" {
out.WriteErrorString(msgWrongType)
return
}
if db.hashSet(key, field, value) {
out.WriteZero()
} else {
out.WriteOne()
}
})
}
// APPEND
func (m *Miniredis) cmdAppend(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
value := r.Args[1]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if t, ok := db.keys[key]; ok && t != "string" {
out.WriteErrorString(msgWrongType)
return
}
newValue := db.stringKeys[key] + value
db.stringSet(key, newValue)
out.WriteInt(len(newValue))
})
}
// HSETNX
func (m *Miniredis) cmdHsetnx(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 3 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'hsetnx' command")
return nil
}
key := r.Args[0]
field := r.Args[1]
value := r.Args[2]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if t, ok := db.keys[key]; ok && t != "hash" {
out.WriteErrorString(msgWrongType)
return
}
if _, ok := db.hashKeys[key]; !ok {
db.hashKeys[key] = map[string]string{}
db.keys[key] = "hash"
}
_, ok := db.hashKeys[key][field]
if ok {
out.WriteZero()
return
}
db.hashKeys[key][field] = value
db.keyVersion[key]++
out.WriteOne()
})
}
// MOVE
func (m *Miniredis) cmdMove(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
targetDB, err := strconv.Atoi(r.Args[1])
if err != nil {
targetDB = 0
}
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
if ctx.selectedDB == targetDB {
out.WriteErrorString("ERR source and destination objects are the same")
return
}
db := m.db(ctx.selectedDB)
targetDB := m.db(targetDB)
if !db.move(key, targetDB) {
out.WriteZero()
return
}
out.WriteOne()
})
}
// RPOP
func (m *Miniredis) cmdRpop(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 1 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteNil()
return
}
if db.t(key) != "list" {
out.WriteErrorString(msgWrongType)
return
}
elem := db.listPop(key)
out.WriteString(elem)
})
}
// RENAMENX
func (m *Miniredis) cmdRenamenx(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
from := r.Args[0]
to := r.Args[1]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(from) {
out.WriteErrorString(msgKeyNotFound)
return
}
if db.exists(to) {
out.WriteZero()
return
}
db.rename(from, to)
out.WriteOne()
})
}
// RPUSH
func (m *Miniredis) cmdRpush(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) < 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
args := r.Args[1:]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if db.exists(key) && db.t(key) != "list" {
out.WriteErrorString(msgWrongType)
return
}
var newLen int
for _, value := range args {
newLen = db.listPush(key, value)
}
out.WriteInt(newLen)
})
}
// SISMEMBER
func (m *Miniredis) cmdSismember(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 2 {
setDirty(r.Client())
out.WriteErrorString("ERR wrong number of arguments for 'sismember' command")
return nil
}
key := r.Args[0]
value := r.Args[1]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteZero()
return
}
if db.t(key) != "set" {
out.WriteErrorString(ErrWrongType.Error())
return
}
if db.setIsMember(key, value) {
out.WriteOne()
return
}
out.WriteZero()
})
}
// LINSERT
func (m *Miniredis) cmdLinsert(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) != 4 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
where := 0
switch strings.ToLower(r.Args[1]) {
case "before":
where = -1
case "after":
where = +1
default:
setDirty(r.Client())
out.WriteErrorString(msgSyntaxError)
return nil
}
pivot := r.Args[2]
value := r.Args[3]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
t, ok := db.keys[key]
if !ok {
// No such key
out.WriteZero()
return
}
if t != "list" {
out.WriteErrorString(msgWrongType)
return
}
l := db.listKeys[key]
for i, el := range l {
if el != pivot {
continue
}
if where < 0 {
l = append(l[:i], append(listKey{value}, l[i:]...)...)
} else {
if i == len(l)-1 {
l = append(l, value)
} else {
l = append(l[:i+1], append(listKey{value}, l[i+1:]...)...)
}
}
db.listKeys[key] = l
db.keyVersion[key]++
out.WriteInt(len(l))
return
}
out.WriteInt(-1)
})
}
// ZREM
func (m *Miniredis) cmdZrem(out *redeo.Responder, r *redeo.Request) error {
if len(r.Args) < 2 {
setDirty(r.Client())
return r.WrongNumberOfArgs()
}
if !m.handleAuth(r.Client(), out) {
return nil
}
key := r.Args[0]
members := r.Args[1:]
return withTx(m, out, r, func(out *redeo.Responder, ctx *connCtx) {
db := m.db(ctx.selectedDB)
if !db.exists(key) {
out.WriteZero()
return
}
if db.t(key) != "zset" {
out.WriteErrorString(ErrWrongType.Error())
return
}
deleted := 0
for _, member := range members {
if db.ssetRem(key, member) {
deleted++
}
}
out.WriteInt(deleted)
})
}