-
Notifications
You must be signed in to change notification settings - Fork 0
/
db.go
69 lines (60 loc) · 1.9 KB
/
db.go
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
package db
import (
"context"
"database/sql"
"github.com/daniiarov-alym/migrator-service/src/config"
"fmt"
"strings"
"github.com/golang-migrate/migrate"
"github.com/golang-migrate/migrate/database/postgres"
_ "github.com/golang-migrate/migrate/source/file"
"github.com/jackc/pgx/v4/pgxpool"
logger "github.com/sirupsen/logrus"
)
func Run(ctx context.Context) {
createDatabase(ctx)
migrateDb(ctx)
}
func createDatabase(ctx context.Context) {
conf := config.Conf()
dsn := fmt.Sprintf("postgres://%s:%s@%s:%s/postgres?sslmode=disable",
conf.User, conf.Password,
conf.Host, conf.Port)
config, err := pgxpool.ParseConfig(dsn)
if err != nil {
logger.WithError(err).Fatal("Unable to parse database config")
}
repo, err := pgxpool.ConnectConfig(ctx, config)
if err != nil {
logger.Fatalf("Failed to initialise connection to Postgres Database: %s", err)
}
_, err = repo.Exec(ctx, "CREATE DATABASE \""+conf.Database+"\"")
if err != nil && !strings.Contains(err.Error(), "(SQLSTATE 42P04)") {
logger.Fatal("Failed to create a database: " + err.Error())
}
}
func migrateDb(ctx context.Context) {
conf := config.Conf()
logger.Trace("Starting migrations")
dsn := fmt.Sprintf("postgres://%s:%s@%s:%s/%s?sslmode=disable",
conf.User, conf.Password,
conf.Host, conf.Port, conf.Database)
dbCon, err := sql.Open("postgres", dsn)
if err != nil {
logger.Fatal("failed to connect to db :: ", err)
}
driver, err := postgres.WithInstance(dbCon, &postgres.Config{})
if err != nil {
logger.Fatal("failed to create postgres abstraction :: ", err)
}
srcUrl := "file://migrations"
migrator, err := migrate.NewWithDatabaseInstance(srcUrl, conf.Database, driver)
if err != nil {
logger.Fatal("failed to create migrator instance :: ", err)
}
err = migrator.Up()
if err != nil && err.Error() != "no change" {
logger.Fatal("failed to apply migrations :: ", err)
}
logger.Trace("Migration finished successfully")
}