Check actor event database schema version

This commit is contained in:
Ian Davis 2022-11-15 14:38:32 +00:00
parent 32839f6919
commit bf1fcf88b1

View File

@ -59,6 +59,8 @@ var ddls = []string{
`INSERT OR IGNORE INTO _meta (version) VALUES (1)`,
}
const schemaVersion = 1
const (
insertEvent = `INSERT OR IGNORE INTO event
(height, tipset_key, tipset_key_cid, emitter_addr, event_index, message_cid, message_index, reverted)
@ -86,12 +88,33 @@ func NewEventIndex(path string) (*EventIndex, error) {
}
}
q, err := db.Query("SELECT name FROM sqlite_master WHERE type='table' AND name='_meta';")
if err == sql.ErrNoRows || !q.Next() {
// empty database, create the schema
for _, ddl := range ddls {
if _, err := db.Exec(ddl); err != nil {
_ = db.Close()
return nil, xerrors.Errorf("exec ddl %q: %w", ddl, err)
}
}
} else if err != nil {
_ = db.Close()
return nil, xerrors.Errorf("looking for _meta table: %w", err)
} else {
// Ensure we don't open a database from a different schema version
row := db.QueryRow("SELECT max(version) FROM _meta")
var version int
err := row.Scan(&version)
if err != nil {
_ = db.Close()
return nil, xerrors.Errorf("invalid database version: no version found")
}
if version != schemaVersion {
_ = db.Close()
return nil, xerrors.Errorf("invalid database version: got %d, expected %d", version, schemaVersion)
}
}
return &EventIndex{
db: db,