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create ./bin/db to manage database (at least for testing)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "database/sql" | ||
| "flag" | ||
| "fmt" | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/go-kit/kit/log" | ||
| "github.com/kelseyhightower/envconfig" | ||
| "github.com/moov-io/customers/internal/database" | ||
| ) | ||
|
|
||
| var flagLogFormat = flag.String("log.format", "", "Format for log lines (Options: json, plain") | ||
|
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| type Config struct { | ||
| RootPassword string `split_words:"true" default:"secret"` | ||
| User string `default:"moov"` | ||
| Password string `default:"secret"` | ||
| Address string `default:"tcp(localhost:3306)"` | ||
| Database string `default:"paygate_test"` | ||
| } | ||
|
|
||
| func main() { | ||
| var config Config | ||
| err := envconfig.Process("mysql", &config) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
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| err = runCmd(os.Args[1], &config) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
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| func runCmd(cmd string, config *Config) error { | ||
| switch cmd { | ||
| case "setup": | ||
| err := dropDB(config) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| err = createDB(config) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| err = migrateDB(config) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| case "create": | ||
| err := createDB(config) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| case "drop": | ||
| err := dropDB(config) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| case "migrate": | ||
| err := migrateDB(config) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
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| func dropDB(config *Config) error { | ||
| dsn := fmt.Sprintf("root:%s@%s/", config.RootPassword, config.Address) | ||
| db, err := sql.Open("mysql", dsn) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer db.Close() | ||
|
|
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| _, err = db.Exec("DROP DATABASE IF EXISTS " + config.Database) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| fmt.Printf("Database %s was deleted\n", config.Database) | ||
| return nil | ||
| } | ||
|
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| func createDB(config *Config) error { | ||
| dsn := fmt.Sprintf("root:%s@%s/", config.RootPassword, config.Address) | ||
| db, err := sql.Open("mysql", dsn) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer db.Close() | ||
|
|
||
| _, err = db.Exec("CREATE DATABASE " + config.Database) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| _, err = db.Exec(fmt.Sprintf("CREATE USER IF NOT EXISTS '%s'@'%%' IDENTIFIED BY '%s'", config.User, config.Password)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| _, err = db.Exec(fmt.Sprintf("GRANT ALL PRIVILEGES ON %s . * TO '%s'@'%%';", config.Database, config.User)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| fmt.Printf("Database %s was created\n", config.Database) | ||
| return nil | ||
| } | ||
|
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| // TODO: having migration inside database.New (inside Connect method) makes it | ||
| // ambiguous we should extract migtation method into separate public method | ||
| // that we can call from here. | ||
| func migrateDB(config *Config) error { | ||
| var logger log.Logger | ||
|
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| // migrate database | ||
| if strings.ToLower(*flagLogFormat) == "json" { | ||
| logger = log.NewJSONLogger(os.Stderr) | ||
| } else { | ||
| logger = log.NewLogfmtLogger(os.Stderr) | ||
| } | ||
| logger = log.With(logger, "ts", log.DefaultTimestampUTC) | ||
| logger = log.With(logger, "caller", log.DefaultCaller) | ||
|
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| dbConf := &database.MySQLConfig{ | ||
| User: config.User, | ||
| Password: config.Password, | ||
| Address: config.Address, | ||
| Database: config.Database, | ||
| } | ||
|
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| db, err := database.NewMySQL(logger, dbConf) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| db.Close() | ||
|
|
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| fmt.Printf("Database %s was migrated\n", config.Database) | ||
|
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| return nil | ||
| } |
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