83 lines
2.4 KiB
Go
83 lines
2.4 KiB
Go
package main
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import (
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"context"
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"errors"
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"fmt"
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"log"
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"os"
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"os/signal"
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"strconv"
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"strings"
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"syscall"
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"time"
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"gitea.kazu634.com/kazu634/tver/internal/store"
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workerpkg "gitea.kazu634.com/kazu634/tver/internal/worker"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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const staleAfter = 30 * time.Second
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func main() {
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ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
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defer stop()
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config, err := loadConfig(os.Getenv)
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if err != nil {
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log.Fatal(err)
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}
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pool, err := initializeDatabase(ctx, os.Getenv("DATABASE_URL"), time.Now(), pgxpool.New,
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store.Migrate, func(ctx context.Context, pool *pgxpool.Pool, cutoff time.Time) (int64, error) {
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return store.New(pool).RequeueStale(ctx, cutoff)
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})
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if err != nil {
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log.Fatal(err)
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}
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defer pool.Close()
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runner, err := workerpkg.New(store.New(pool), config, log.Default())
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("worker started (concurrency=%d)", config.Concurrency)
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if err := runner.Run(ctx); err != nil {
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log.Fatal(err)
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}
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log.Print("worker stopped")
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}
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func loadConfig(getenv func(string) string) (workerpkg.Config, error) {
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concurrency := 1
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if value := strings.TrimSpace(getenv("WORKER_CONCURRENCY")); value != "" {
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parsed, err := strconv.Atoi(value)
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if err != nil || parsed < 1 || parsed > 2 {
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return workerpkg.Config{}, errors.New("WORKER_CONCURRENCY は 1 または 2 を指定してください")
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}
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concurrency = parsed
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}
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return workerpkg.Config{VideoDir: getenv("VIDEO_DIR"), YTDLPPath: getenv("YT_DLP_PATH"),
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FFprobePath: getenv("FFPROBE_PATH"), Concurrency: concurrency}, nil
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}
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func initializeDatabase(ctx context.Context, databaseURL string, now time.Time,
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connect func(context.Context, string) (*pgxpool.Pool, error),
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migrate func(context.Context, *pgxpool.Pool) error,
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requeue func(context.Context, *pgxpool.Pool, time.Time) (int64, error),
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) (*pgxpool.Pool, error) {
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if strings.TrimSpace(databaseURL) == "" {
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return nil, errors.New("DATABASE_URL が設定されていません")
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}
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pool, err := connect(ctx, databaseURL)
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if err != nil {
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return nil, errors.New("DATABASE_URL から接続プールを作成できません")
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}
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if err := migrate(ctx, pool); err != nil {
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pool.Close()
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return nil, fmt.Errorf("DB マイグレーションに失敗: %w", err)
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}
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if _, err := requeue(ctx, pool, now.Add(-staleAfter)); err != nil {
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pool.Close()
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return nil, fmt.Errorf("停止中ジョブの復帰に失敗: %w", err)
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}
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return pool, nil
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}
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