52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
package db
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import (
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"database/sql"
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"fmt"
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"log"
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"time"
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"github.com/golang-migrate/migrate/v4"
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_ "github.com/golang-migrate/migrate/v4/database/postgres"
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_ "github.com/golang-migrate/migrate/v4/source/file"
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_ "github.com/lib/pq"
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)
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// Connect initializes a standard sql.DB connection with retries.
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func Connect(dsn string) (*sql.DB, error) {
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var db *sql.DB
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var err error
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for i := 0; i < 10; i++ {
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db, err = sql.Open("postgres", dsn)
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if err == nil {
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err = db.Ping()
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if err == nil {
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return db, nil
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}
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}
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fmt.Printf("Failed to connect to database, retrying in 2s... (%d/10)\n", i+1)
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time.Sleep(2 * time.Second)
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}
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return nil, fmt.Errorf("failed to connect to database after retries: %w", err)
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}
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// RunMigrations runs the SQL migrations from internal/db/migrations.
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func RunMigrations(dsn string) error {
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m, err := migrate.New(
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"file://internal/db/migrations",
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dsn,
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)
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if err != nil {
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return fmt.Errorf("could not create migrate instance: %w", err)
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}
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if err := m.Up(); err != nil && err != migrate.ErrNoChange {
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return fmt.Errorf("could not run up migrations: %w", err)
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}
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log.Println("Migrations completed successfully")
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return nil
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}
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