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Prohibit automatic downgrades #13108

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Merged
merged 6 commits into from
Oct 12, 2020
Merged

Prohibit automatic downgrades #13108

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8caad37
Prohibit automatic downgrades
6543 Oct 12, 2020
e428217
do not only log, print to stderr too
6543 Oct 12, 2020
b4ffe4c
Update models/migrations/migrations.go
6543 Oct 12, 2020
9e0c7a8
Merge branch 'master' into forbit-automatic-downgrade
6543 Oct 12, 2020
e9932a0
Update models/migrations/migrations.go
zeripath Oct 12, 2020
2564299
Merge branch 'master' into forbit-automatic-downgrade
zeripath Oct 12, 2020
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13 changes: 9 additions & 4 deletions models/migrations/migrations.go
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ package migrations

import (
"fmt"
"os"
"reflect"
"regexp"
"strings"
Expand Down Expand Up @@ -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 {
Expand Down