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added new cmd command for create a new migration
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Roman Zatonskiy
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Aug 1, 2023
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| // Copyright 2018 Sergey Novichkov. All rights reserved. | ||
| // For the full copyright and license information, please view the LICENSE | ||
| // file that was distributed with this source code. | ||
|
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||
| package command | ||
|
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||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
| "strconv" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/gozix/di" | ||
| "github.com/spf13/cobra" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
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||
| const ( | ||
| migrationFileExtension string = "sql" | ||
| ) | ||
|
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||
| // NewMigrateCreate is subcommand constructor. | ||
| func NewMigrateCreate(ctn di.Container) *cobra.Command { | ||
| return &cobra.Command{ | ||
| Use: "create", | ||
| Short: "Create named migration", | ||
| Long: `Normally each migration is run within a transaction. | ||
| However some SQL commands (for example creating an index concurrently in PostgreSQL) | ||
| cannot be executed inside a transaction. In order to execute such a command in a migration, | ||
| the migration can be run using the notransaction option https://github.com/rubenv/sql-migrate`, | ||
| Args: cobra.ExactArgs(1), | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| return ctn.Call(func(ctx context.Context, logger *zap.Logger) (err error) { | ||
| var ( | ||
| name = args[0] | ||
| path = cmd.Flag("path").Value.String() | ||
| ) | ||
| if !filepath.IsAbs(path) { | ||
| var appPath, ok = ctx.Value("app.path").(string) | ||
| if !ok { | ||
| return errors.New("app.path is undefined") | ||
| } | ||
|
|
||
| path = filepath.Join(appPath, path) | ||
| } | ||
|
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| if _, err = create(path, name, migrationFileExtension); err != nil { | ||
| return err | ||
| } | ||
|
|
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| logger.Info( | ||
| "Created migration", | ||
| zap.String("migration", filepath.Join(path, name+"."+migrationFileExtension)), | ||
| ) | ||
|
|
||
| return nil | ||
| }) | ||
| }, | ||
| } | ||
| } | ||
|
|
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| func create(migrationDir string, name string, extension string) (string, error) { | ||
| var ( | ||
| fileName string | ||
| fileContent string | ||
| file *os.File | ||
| err error | ||
| ) | ||
|
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| fileName = filepath.Join( | ||
| filepath.Clean(migrationDir), | ||
| fmt.Sprintf("%s_%s.%s", | ||
| // version | ||
| strconv.FormatInt(time.Now().Unix(), 10), | ||
| name, | ||
| extension, | ||
| ), | ||
| ) | ||
|
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| fileContent = strings.Join([]string{ | ||
| "-- +migrate Up", | ||
| "-- SQL in section 'Up' is executed when this migration is applied", | ||
| "", | ||
| "", | ||
| "", | ||
| "-- +migrate Down", | ||
| "-- SQL section 'Down' is executed when this migration is rolled back", | ||
| "", | ||
| }, "\n") | ||
|
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| file, err = os.OpenFile(fileName, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666) | ||
| if err != nil { | ||
| return fileName, err | ||
| } | ||
| defer func() { | ||
| _ = file.Close() | ||
| }() | ||
|
|
||
| _, err = file.WriteString(fileContent) | ||
|
|
||
| return fileName, err | ||
| } |
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