-
Notifications
You must be signed in to change notification settings - Fork 464
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge branch 'master' into addflag-disable-daschunkedstore
- Loading branch information
Showing
7 changed files
with
272 additions
and
22 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,231 @@ | ||
| package redisutil | ||
|
|
||
| import "github.com/redis/go-redis/v9" | ||
| import ( | ||
| "fmt" | ||
| "net" | ||
| "net/url" | ||
| "sort" | ||
| "strconv" | ||
| "strings" | ||
| "time" | ||
|
|
||
| func RedisClientFromURL(url string) (redis.UniversalClient, error) { | ||
| if url == "" { | ||
| "github.com/redis/go-redis/v9" | ||
| ) | ||
|
|
||
| // RedisClientFromURL creates a new Redis client based on the provided URL. | ||
| // The URL scheme can be either `redis` or `redis+sentinel`. | ||
| func RedisClientFromURL(redisUrl string) (redis.UniversalClient, error) { | ||
| if redisUrl == "" { | ||
| return nil, nil | ||
| } | ||
| redisOptions, err := redis.ParseURL(url) | ||
| u, err := url.Parse(redisUrl) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if u.Scheme == "redis+sentinel" { | ||
| redisOptions, err := parseFailoverRedisUrl(redisUrl) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return redis.NewFailoverClient(redisOptions), nil | ||
| } | ||
| redisOptions, err := redis.ParseURL(redisUrl) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return redis.NewClient(redisOptions), nil | ||
| } | ||
|
|
||
| // Designed using https://github.com/redis/go-redis/blob/a8590e987945b7ba050569cc3b94b8ece49e99e3/options.go#L283 as reference | ||
| // Example Usage : | ||
| // | ||
| // redis+sentinel://<user>:<password>@<host1>:<port1>,<host2>:<port2>,<host3>:<port3>/<master_name/><db_number>?dial_timeout=3&db=1&read_timeout=6s&max_retries=2 | ||
| func parseFailoverRedisUrl(redisUrl string) (*redis.FailoverOptions, error) { | ||
| u, err := url.Parse(redisUrl) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| o := &redis.FailoverOptions{} | ||
| o.SentinelUsername, o.SentinelPassword = getUserPassword(u) | ||
| o.SentinelAddrs = getAddressesWithDefaults(u) | ||
| f := strings.FieldsFunc(u.Path, func(r rune) bool { | ||
| return r == '/' | ||
| }) | ||
| switch len(f) { | ||
| case 0: | ||
| return nil, fmt.Errorf("redis: master name is required") | ||
| case 1: | ||
| o.DB = 0 | ||
| o.MasterName = f[0] | ||
| case 2: | ||
| o.MasterName = f[0] | ||
| var err error | ||
| if o.DB, err = strconv.Atoi(f[1]); err != nil { | ||
| return nil, fmt.Errorf("redis: invalid database number: %q", f[0]) | ||
| } | ||
| default: | ||
| return nil, fmt.Errorf("redis: invalid URL path: %s", u.Path) | ||
| } | ||
|
|
||
| return setupConnParams(u, o) | ||
| } | ||
|
|
||
| func getUserPassword(u *url.URL) (string, string) { | ||
| var user, password string | ||
| if u.User != nil { | ||
| user = u.User.Username() | ||
| if p, ok := u.User.Password(); ok { | ||
| password = p | ||
| } | ||
| } | ||
| return user, password | ||
| } | ||
|
|
||
| func getAddressesWithDefaults(u *url.URL) []string { | ||
| urlHosts := strings.Split(u.Host, ",") | ||
| var addresses []string | ||
| for _, urlHost := range urlHosts { | ||
| host, port, err := net.SplitHostPort(urlHost) | ||
| if err != nil { | ||
| host = u.Host | ||
| } | ||
| if host == "" { | ||
| host = "localhost" | ||
| } | ||
| if port == "" { | ||
| port = "6379" | ||
| } | ||
| addresses = append(addresses, net.JoinHostPort(host, port)) | ||
| } | ||
| return addresses | ||
| } | ||
|
|
||
| type queryOptions struct { | ||
| q url.Values | ||
| err error | ||
| } | ||
|
|
||
| func (o *queryOptions) has(name string) bool { | ||
| return len(o.q[name]) > 0 | ||
| } | ||
|
|
||
| func (o *queryOptions) string(name string) string { | ||
| vs := o.q[name] | ||
| if len(vs) == 0 { | ||
| return "" | ||
| } | ||
| delete(o.q, name) // enable detection of unknown parameters | ||
| return vs[len(vs)-1] | ||
| } | ||
|
|
||
| func (o *queryOptions) int(name string) int { | ||
| s := o.string(name) | ||
| if s == "" { | ||
| return 0 | ||
| } | ||
| i, err := strconv.Atoi(s) | ||
| if err == nil { | ||
| return i | ||
| } | ||
| if o.err == nil { | ||
| o.err = fmt.Errorf("redis: invalid %s number: %w", name, err) | ||
| } | ||
| return 0 | ||
| } | ||
|
|
||
| func (o *queryOptions) duration(name string) time.Duration { | ||
| s := o.string(name) | ||
| if s == "" { | ||
| return 0 | ||
| } | ||
| // try plain number first | ||
| if i, err := strconv.Atoi(s); err == nil { | ||
| if i <= 0 { | ||
| // disable timeouts | ||
| return -1 | ||
| } | ||
| return time.Duration(i) * time.Second | ||
| } | ||
| dur, err := time.ParseDuration(s) | ||
| if err == nil { | ||
| return dur | ||
| } | ||
| if o.err == nil { | ||
| o.err = fmt.Errorf("redis: invalid %s duration: %w", name, err) | ||
| } | ||
| return 0 | ||
| } | ||
|
|
||
| func (o *queryOptions) bool(name string) bool { | ||
| switch s := o.string(name); s { | ||
| case "true", "1": | ||
| return true | ||
| case "false", "0", "": | ||
| return false | ||
| default: | ||
| if o.err == nil { | ||
| o.err = fmt.Errorf("redis: invalid %s boolean: expected true/false/1/0 or an empty string, got %q", name, s) | ||
| } | ||
| return false | ||
| } | ||
| } | ||
|
|
||
| func (o *queryOptions) remaining() []string { | ||
| if len(o.q) == 0 { | ||
| return nil | ||
| } | ||
| keys := make([]string, 0, len(o.q)) | ||
| for k := range o.q { | ||
| keys = append(keys, k) | ||
| } | ||
| sort.Strings(keys) | ||
| return keys | ||
| } | ||
|
|
||
| func setupConnParams(u *url.URL, o *redis.FailoverOptions) (*redis.FailoverOptions, error) { | ||
| q := queryOptions{q: u.Query()} | ||
|
|
||
| // compat: a future major release may use q.int("db") | ||
| if tmp := q.string("db"); tmp != "" { | ||
| db, err := strconv.Atoi(tmp) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("redis: invalid database number: %w", err) | ||
| } | ||
| o.DB = db | ||
| } | ||
|
|
||
| o.Protocol = q.int("protocol") | ||
| o.ClientName = q.string("client_name") | ||
| o.MaxRetries = q.int("max_retries") | ||
| o.MinRetryBackoff = q.duration("min_retry_backoff") | ||
| o.MaxRetryBackoff = q.duration("max_retry_backoff") | ||
| o.DialTimeout = q.duration("dial_timeout") | ||
| o.ReadTimeout = q.duration("read_timeout") | ||
| o.WriteTimeout = q.duration("write_timeout") | ||
| o.PoolFIFO = q.bool("pool_fifo") | ||
| o.PoolSize = q.int("pool_size") | ||
| o.PoolTimeout = q.duration("pool_timeout") | ||
| o.MinIdleConns = q.int("min_idle_conns") | ||
| o.MaxIdleConns = q.int("max_idle_conns") | ||
| o.MaxActiveConns = q.int("max_active_conns") | ||
| if q.has("conn_max_idle_time") { | ||
| o.ConnMaxIdleTime = q.duration("conn_max_idle_time") | ||
| } else { | ||
| o.ConnMaxIdleTime = q.duration("idle_timeout") | ||
| } | ||
| if q.has("conn_max_lifetime") { | ||
| o.ConnMaxLifetime = q.duration("conn_max_lifetime") | ||
| } else { | ||
| o.ConnMaxLifetime = q.duration("max_conn_age") | ||
| } | ||
| if q.err != nil { | ||
| return nil, q.err | ||
| } | ||
|
|
||
| // any parameters left? | ||
| if r := q.remaining(); len(r) > 0 { | ||
| return nil, fmt.Errorf("redis: unexpected option: %s", strings.Join(r, ", ")) | ||
| } | ||
|
|
||
| return o, nil | ||
| } |