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database_migration_command.go
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database_migration_command.go
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package command
import (
"fmt"
"github.com/aasumitro/pokewar/configs"
"github.com/golang-migrate/migrate/v4"
"github.com/golang-migrate/migrate/v4/database/sqlite3"
"github.com/golang-migrate/migrate/v4/source/file"
"github.com/spf13/cobra"
"strconv"
// sqlite3 driver
_ "github.com/mattn/go-sqlite3"
)
var migrateCmd = &cobra.Command{
Use: "migration",
Long: `migrate cmd is used for database migration: migrate < up | down >`,
}
var migrateUpCmd = &cobra.Command{
Use: "up",
Long: `Command to upgrade database migration`,
Run: func(cmd *cobra.Command, args []string) {
migration, err := initGoMigrate()
if err != nil {
fmt.Printf("migrate down error: %v \n", err)
return
}
if err := migration.Up(); err != nil {
fmt.Printf("migrate up error: %v \n", err)
return
}
fmt.Println("Migrate up done with success")
},
}
var migrateDownCmd = &cobra.Command{
Use: "down",
Long: `Command to downgrade database`,
Run: func(cmd *cobra.Command, args []string) {
migration, err := initGoMigrate()
if err != nil {
fmt.Printf("migrate down error: %v \n", err)
return
}
if err := migration.Down(); err != nil {
fmt.Printf("migrate down error: %v \n", err)
return
}
fmt.Println("Migrate down done with success")
},
}
var migrateVersionCmd = &cobra.Command{
Use: "version",
Long: `Command to see database migration version`,
Run: func(cmd *cobra.Command, args []string) {
migration, err := initGoMigrate()
if err != nil {
fmt.Printf("migrate down error: %v \n", err)
return
}
version, dirty, err := migration.Version()
if err != nil {
fmt.Printf("migrate up error: %v \n", err)
return
}
fmt.Printf("Database Version %d is dirty: %s",
version, strconv.FormatBool(dirty))
},
}
func initGoMigrate() (instance *migrate.Migrate, err error) {
fileSource, err := (&file.File{}).Open("file://db/migrations")
if err != nil {
return nil, err
}
driver, err := sqlite3.WithInstance(
configs.DbPool, &sqlite3.Config{})
if err != nil {
return nil, err
}
instance, err = migrate.NewWithInstance(
"file", fileSource, "pokewar", driver)
if err != nil {
return nil, err
}
return instance, nil
}
func init() {
CliCmd.AddCommand(migrateCmd)
migrateCmd.AddCommand(migrateUpCmd)
migrateCmd.AddCommand(migrateDownCmd)
migrateCmd.AddCommand(migrateVersionCmd)
}