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feat: transfer pkger migration box from kratos (#239)
Transfer pkger migration box from kratos/x to pkgerx.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| package pkgerx | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "io" | ||
| "io/ioutil" | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/gobuffalo/pop/v5" | ||
| "github.com/markbates/pkger" | ||
| "github.com/pkg/errors" | ||
|
|
||
| "github.com/ory/x/logrusx" | ||
| ) | ||
|
|
||
| type ( | ||
| // MigrationBox is a wrapper around pkger.Dir and Migrator. | ||
| // This will allow you to run migrations from migrations packed | ||
| // inside of a compiled binary. | ||
| MigrationBox struct { | ||
| pop.Migrator | ||
| Dir pkger.Dir | ||
| l *logrusx.Logger | ||
| } | ||
| ) | ||
|
|
||
| // NewMigrationBox from a packr.Dir and a Connection. | ||
| // | ||
| // migrations, err := NewMigrationBox(pkger.Dir("/migrations")) | ||
| // | ||
| func NewMigrationBox(dir pkger.Dir, c *pop.Connection, l *logrusx.Logger) (*MigrationBox, error) { | ||
| mb := MigrationBox{ | ||
| Migrator: pop.NewMigrator(c), | ||
| Dir: dir, | ||
| l: l, | ||
| } | ||
|
|
||
| runner := func(f io.Reader) func(mf pop.Migration, tx *pop.Connection) error { | ||
| return func(mf pop.Migration, tx *pop.Connection) error { | ||
| content, err := pop.MigrationContent(mf, tx, f, true) | ||
| if err != nil { | ||
| return errors.Wrapf(err, "error processing %s", mf.Path) | ||
| } | ||
| if content == "" { | ||
| return nil | ||
| } | ||
| err = tx.RawQuery(content).Exec() | ||
| if err != nil { | ||
| return errors.Wrapf(err, "error executing %s, sql: %s", mf.Path, content) | ||
| } | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| err := mb.findMigrations(runner) | ||
| if err != nil { | ||
| return &mb, err | ||
| } | ||
|
|
||
| return &mb, nil | ||
| } | ||
|
|
||
| func (fm *MigrationBox) findMigrations(runner func(f io.Reader) func(mf pop.Migration, tx *pop.Connection) error) error { | ||
| return pkger.Walk(string(fm.Dir), func(p string, info os.FileInfo, err error) error { | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| match, err := pop.ParseMigrationFilename(info.Name()) | ||
| if err != nil { | ||
| if strings.HasPrefix(err.Error(), "unsupported dialect") { | ||
| fm.l.Debugf("Ignoring migration file %s because dialect is not supported: %s", info.Name(), err.Error()) | ||
| return nil | ||
| } | ||
| return err | ||
| } | ||
|
|
||
| if match == nil { | ||
| fm.l.Debugf("Ignoring migration file %s because it does not match the file pattern.", info.Name()) | ||
| return nil | ||
| } | ||
|
|
||
| file, err := pkger.Open(p) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer file.Close() | ||
|
|
||
| content, err := ioutil.ReadAll(file) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| mf := pop.Migration{ | ||
| Path: p, | ||
| Version: match.Version, | ||
| Name: match.Name, | ||
| DBType: match.DBType, | ||
| Direction: match.Direction, | ||
| Type: match.Type, | ||
| Runner: runner(bytes.NewReader(content)), | ||
| } | ||
| fm.Migrations[mf.Direction] = append(fm.Migrations[mf.Direction], mf) | ||
| return nil | ||
| }) | ||
| } |