Prohibit automatic downgrades (#13108)

Prohibit automatic downgrades by checking the version of the db and warning if the version number should be lower.

Close #13107

Co-authored-by: Cirno the Strongest <1447794+CirnoT@users.noreply.github.com>
This commit is contained in:
6543 2020-10-12 16:35:56 +02:00 committed by GitHub
parent c752ccee64
commit 9513638715
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@ -7,6 +7,7 @@ package migrations
import (
"fmt"
"os"
"reflect"
"regexp"
"strings"
@ -315,12 +316,16 @@ Please try upgrading to a lower version first (suggested v1.6.4), then upgrade t
return nil
}
// Downgraded Gitea not supported
if int(v-minDBVersion) > len(migrations) {
// User downgraded Gitea.
currentVersion.Version = int64(len(migrations) + minDBVersion)
_, err = x.ID(1).Update(currentVersion)
return err
msg := fmt.Sprintf("Downgrading Gitea from '%d' to '%d' is not supported and may result in loss of data integrity.\nIf you really know what you're doing, execute `UPDATE version SET version=%d WHERE id=1;`\n",
v, minDBVersion+len(migrations), minDBVersion+len(migrations))
fmt.Fprint(os.Stderr, msg)
log.Fatal(msg)
return nil
}
// Migrate
for i, m := range migrations[v-minDBVersion:] {
log.Info("Migration[%d]: %s", v+int64(i), m.Description())
if err = m.Migrate(x); err != nil {