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migration.go
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migration.go
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package repo
import (
"github.com/OpenBazaar/openbazaar-go/repo/migrations"
"io/ioutil"
"os"
"path"
"strconv"
)
type Migration interface {
Up(repoPath string, dbPassword string, testnet bool) error
Down(repoPath string, dbPassword string, testnet bool) error
}
var Migrations = []Migration{
migrations.Migration000{},
migrations.Migration001{},
migrations.Migration002{},
migrations.Migration003{},
migrations.Migration004{},
migrations.Migration005{},
migrations.Migration006{},
}
// MigrateUp looks at the currently active migration version
// and will migrate all the way up (applying all up migrations).
func MigrateUp(repoPath, dbPassword string, testnet bool) error {
version, err := ioutil.ReadFile(path.Join(repoPath, "repover"))
if err != nil && !os.IsNotExist(err) {
return err
} else if err != nil && os.IsNotExist(err) {
version = []byte("0")
}
v, err := strconv.Atoi(string(version[0]))
if err != nil {
return err
}
x := v
for _, m := range Migrations[v:] {
log.Noticef("Migrating repo to version %d\n", x+1)
err := m.Up(repoPath, dbPassword, testnet)
if err != nil {
log.Error(err)
return err
}
x++
}
return nil
}