Add nasctl: Go NAS control plane with React frontend

internal/db/db.go

@@ -0,0 +1,62 @@
+package db
+
+import (
+	"database/sql"
+	"embed"
+	"fmt"
+	"io/fs"
+	"sort"
+	"strings"
+
+	_ "modernc.org/sqlite"
+)
+
+//go:embed migrations/*.sql
+var migrationsFS embed.FS
+
+type DB struct {
+	conn *sql.DB
+}
+
+func Open(path string) (*DB, error) {
+	conn, err := sql.Open("sqlite", path)
+	if err != nil {
+		return nil, fmt.Errorf("open sqlite: %w", err)
+	}
+	if _, err := conn.Exec(`PRAGMA foreign_keys = ON`); err != nil {
+		_ = conn.Close()
+		return nil, fmt.Errorf("enable foreign keys: %w", err)
+	}
+	return &DB{conn: conn}, nil
+}
+
+func (d *DB) Close() error {
+	return d.conn.Close()
+}
+
+func (d *DB) Conn() *sql.DB {
+	return d.conn
+}
+
+func (d *DB) Migrate() error {
+	entries, err := fs.ReadDir(migrationsFS, "migrations")
+	if err != nil {
+		return fmt.Errorf("read migrations: %w", err)
+	}
+	sort.Slice(entries, func(i, j int) bool {
+		return entries[i].Name() < entries[j].Name()
+	})
+	for _, entry := range entries {
+		if entry.IsDir() || !strings.HasSuffix(entry.Name(), ".sql") {
+			continue
+		}
+		content, err := migrationsFS.ReadFile("migrations/" + entry.Name())
+		if err != nil {
+			return fmt.Errorf("read migration %s: %w", entry.Name(), err)
+		}
+		if _, err := d.conn.Exec(string(content)); err != nil {
+			return fmt.Errorf("apply migration %s: %w", entry.Name(), err)
+		}
+	}
+	return nil
+}