status-go/protocol/sqlite/db.go

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package sqlite
import (
"database/sql"
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"github.com/pkg/errors"
_ "github.com/mutecomm/go-sqlcipher/v4" // We require go sqlcipher that overrides default implementation
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"github.com/status-im/migrate/v4"
"github.com/status-im/migrate/v4/database/sqlcipher"
bindata "github.com/status-im/migrate/v4/source/go_bindata"
mvdsmigrations "github.com/vacp2p/mvds/persistenceutil"
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)
var migrationsTable = "status_protocol_go_" + sqlcipher.DefaultMigrationsTable
// applyMigrations allows to apply bindata migrations on the current *sql.DB.
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// `assetNames` is a list of assets with migrations and `assetGetter` is responsible
// for returning the content of the asset with a given name.
func applyMigrations(db *sql.DB, assetNames []string, assetGetter func(name string) ([]byte, error)) error {
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resources := bindata.Resource(
assetNames,
assetGetter,
)
source, err := bindata.WithInstance(resources)
if err != nil {
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return errors.Wrap(err, "failed to create migration source")
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}
driver, err := sqlcipher.WithInstance(db, &sqlcipher.Config{
MigrationsTable: migrationsTable,
})
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if err != nil {
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return errors.Wrap(err, "failed to create driver")
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}
m, err := migrate.NewWithInstance(
"go-bindata",
source,
"sqlcipher",
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driver,
)
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if err != nil {
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return errors.Wrap(err, "failed to create migration instance")
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}
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version, dirty, err := m.Version()
if err != nil && err != migrate.ErrNilVersion {
return errors.Wrap(err, "could not get version")
}
err = ApplyAdHocMigrations(version, dirty, m, db)
if err != nil {
return errors.Wrap(err, "failed to apply ad-hoc migrations")
}
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if dirty {
err = ReplayLastMigration(version, m)
if err != nil {
return errors.Wrap(err, "failed to replay last migration")
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}
}
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if err = m.Up(); err != migrate.ErrNoChange {
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return errors.Wrap(err, "failed to migrate")
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}
return nil
}
func Migrate(database *sql.DB) error {
// Apply migrations for all components.
err := mvdsmigrations.Migrate(database)
if err != nil {
return errors.Wrap(err, "failed to apply mvds migrations")
}
migrationNames, migrationGetter, err := prepareMigrations(defaultMigrations)
if err != nil {
return errors.Wrap(err, "failed to prepare status-go/protocol migrations")
}
err = applyMigrations(database, migrationNames, migrationGetter)
if err != nil {
return errors.Wrap(err, "failed to apply status-go/protocol migrations")
}
return nil
}