Files
karti-ai 551739baa3 Milestone 1 scaffold: binary skeleton, schema, deploy, Mox spike
- Confirmed core bet via spike/mimecheck: mox/message parses a messy multipart
  message standalone (envelope, MIME tree, attachment, body) with only an
  io.ReaderAt — no mox store/config. Option B is viable.
- cmd/openmail single binary: serve|migrate|smtpd|sender|version subcommands.
- internal/api: chi router, constant-time bearer auth, /healthz, stubbed v0
  AgentMail-shaped routes (501 until core services land).
- internal/store: pgxpool + embedded, idempotent, tracked SQL migrations.
- internal/store/migrations/0001_init.sql: full native schema (pods, inboxes,
  threads, messages, attachments, drafts, api_keys, webhooks, outbox, events,
  domains) with FTS + GIN indexes. Validated end-to-end against Postgres 16.
- deploy/: docker-compose (postgres+minio+openmail+caddy), Caddyfile, DNS.md
  (MX/SPF/DKIM/DMARC/DANE/MTA-STS). Makefile, .gitignore.
- Verified: go vet clean; build OK; health/auth smoke tests; migrate idempotent.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-21 12:16:51 -07:00

101 lines
2.7 KiB
Go

// Package store owns OpenMail's Postgres-backed persistence. This is the
// deliberate divergence from Mox: OpenMail keeps its own native, agent-shaped
// data model (see ARCHITECTURE.md §3) rather than embedding Mox's bstore/bbolt
// account store.
package store
import (
"context"
"embed"
"fmt"
"sort"
"strings"
"github.com/jackc/pgx/v5/pgxpool"
)
//go:embed migrations/*.sql
var migrationsFS embed.FS
type Store struct {
Pool *pgxpool.Pool
}
// Open connects to Postgres and verifies the connection.
func Open(ctx context.Context, databaseURL string) (*Store, error) {
if databaseURL == "" {
return nil, fmt.Errorf("store: DATABASE_URL is empty")
}
pool, err := pgxpool.New(ctx, databaseURL)
if err != nil {
return nil, fmt.Errorf("store: connect: %w", err)
}
if err := pool.Ping(ctx); err != nil {
pool.Close()
return nil, fmt.Errorf("store: ping: %w", err)
}
return &Store{Pool: pool}, nil
}
func (s *Store) Close() {
if s.Pool != nil {
s.Pool.Close()
}
}
// Migrate applies any embedded migrations not yet recorded in schema_migrations,
// in filename order. Each migration runs in its own transaction.
func (s *Store) Migrate(ctx context.Context) error {
_, err := s.Pool.Exec(ctx, `CREATE TABLE IF NOT EXISTS schema_migrations (
version text PRIMARY KEY,
applied_at timestamptz NOT NULL DEFAULT now()
)`)
if err != nil {
return fmt.Errorf("migrate: ensure schema_migrations: %w", err)
}
entries, err := migrationsFS.ReadDir("migrations")
if err != nil {
return fmt.Errorf("migrate: read embedded migrations: %w", err)
}
names := make([]string, 0, len(entries))
for _, e := range entries {
if strings.HasSuffix(e.Name(), ".sql") {
names = append(names, e.Name())
}
}
sort.Strings(names)
for _, name := range names {
var exists bool
if err := s.Pool.QueryRow(ctx,
`SELECT EXISTS(SELECT 1 FROM schema_migrations WHERE version=$1)`, name,
).Scan(&exists); err != nil {
return fmt.Errorf("migrate: check %s: %w", name, err)
}
if exists {
continue
}
sqlBytes, err := migrationsFS.ReadFile("migrations/" + name)
if err != nil {
return fmt.Errorf("migrate: read %s: %w", name, err)
}
tx, err := s.Pool.Begin(ctx)
if err != nil {
return fmt.Errorf("migrate: begin %s: %w", name, err)
}
if _, err := tx.Exec(ctx, string(sqlBytes)); err != nil {
_ = tx.Rollback(ctx)
return fmt.Errorf("migrate: apply %s: %w", name, err)
}
if _, err := tx.Exec(ctx, `INSERT INTO schema_migrations(version) VALUES($1)`, name); err != nil {
_ = tx.Rollback(ctx)
return fmt.Errorf("migrate: record %s: %w", name, err)
}
if err := tx.Commit(ctx); err != nil {
return fmt.Errorf("migrate: commit %s: %w", name, err)
}
}
return nil
}