blob: 31cc3d31ec0f829bc1123df418a22f42fa0e6c0a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
package database
import (
"database/sql"
"embed"
"io/fs"
_ "github.com/mattn/go-sqlite3"
)
//go:embed sql/*.sql
var schemaFiles embed.FS
func (db *DB) migrate() error {
statements := make([]string, 0)
err := fs.WalkDir(schemaFiles, ".", func(path string, d fs.DirEntry, err error) error {
if d.IsDir() || err != nil {
return err
}
var stmts []byte
if stmts, err = schemaFiles.ReadFile(path); err != nil {
return err
} else {
statements = append(statements, string(stmts))
}
return nil
})
if err != nil {
return err
}
return db.WithTransaction(func(tx *sql.Tx) error {
var version int
if err = tx.QueryRowContext(db.ctx, `SELECT version FROM schema_version;`).Scan(&version); err != nil {
if err.Error() == "no such table: schema_version" {
version = 0
} else {
return err
}
}
for version < len(statements) {
if _, err = tx.ExecContext(db.ctx, statements[version]); err != nil {
return err
}
version++
}
_, err = tx.ExecContext(db.ctx, `DELETE FROM schema_version; INSERT INTO schema_version (version) VALUES (?);`, version)
return err
})
}
|
