sqlitex helpers

sqlitex is a pure-Go quality-of-life layer over database/sql (no lib coupling), named after the zombiezen/crawshaw sqlitex lineage.

• Save — deferred savepoints: release, _ := sqlitex.Save(ctx, conn); defer release(&err) commits on nil error, rolls back otherwise.
• Transaction / ImmediateTransaction — run a closure in a transaction that commits on success, rolls back on error.
• ExecScript — execute a multi-statement SQL script.
• Execute — a row-callback query with named params and an ExecOptions{Named, ResultFunc} struct, plus ResultStrings / ResultInts collectors — no rows.Next/Scan/Err/Close boilerplate.
• ResultInt / ResultText / ResultFloat / ResultBool — single-scalar reads.
• Migrate — an embed.FS migration runner tracked via PRAGMA user_version: applies NNNN_*.sql files in order, idempotently.

import "gosqlite.org/sqlitex"

//go:embed migrations/*.sql
var migrations embed.FS

n, _ := sqlitex.Migrate(ctx, db, migrations)         // apply pending migrations
_ = sqlitex.Transaction(ctx, db, func(tx *sql.Tx) error {
  _, e := tx.ExecContext(ctx, `INSERT INTO accounts(name) VALUES ('alice')`)
  return e
})
bal, _ := sqlitex.ResultInt(ctx, db, `SELECT balance FROM accounts WHERE name='alice'`)

Runnable: examples/features/advanced/sqlitex/.