cmd/racedb: program to load races into an sqlite db

cmd/racedb/main.go

@@ -0,0 +1,74 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"flag"
+	"log/slog"
+	"os"
+	"os/signal"
+	"path/filepath"
+
+	"git.sunturtle.xyz/zephyr/horse/umadump/replay"
+)
+
+func main() {
+	var (
+		uri, journalMode string
+		fs               []string
+	)
+	flag.StringVar(&uri, "db", "race.sqlite3", "output database `URI` or filename")
+	flag.StringVar(&journalMode, "journal", "memory", "journal `mode` to apply to database connections")
+	flag.Func("d", "`dir`ectory containing race dumps to load (repeatable)", func(s string) error {
+		es, err := os.ReadDir(s)
+		for _, e := range es {
+			if e.IsDir() {
+				continue
+			}
+			fs = append(fs, filepath.Join(s, e.Name()))
+		}
+		return err
+	})
+	flag.Parse()
+	fs = append(fs, flag.Args()...)
+
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt)
+	go func() {
+		<-ctx.Done()
+		stop()
+	}()
+
+	db := opendb(uri, journalMode)
+	ok := 0
+	for _, n := range fs {
+		log := slog.With(slog.String("file", n))
+		log.Info("begin")
+		f, err := os.Open(n)
+		if err != nil {
+			log.Error("open", slog.Any("err", err))
+			continue
+		}
+		var race replay.Race
+		d := json.NewDecoder(f)
+		d.DisallowUnknownFields()
+		log.Debug("decode")
+		if err := d.Decode(&race); err != nil {
+			log.Error("load", slog.Any("err", err))
+			continue
+		}
+		log.Debug("simdata")
+		simdata, err := replay.DecodeSim(race.SimDataBase64)
+		if err != nil {
+			log.Error("simdata", slog.Any("err", err))
+			continue
+		}
+		log.Debug("insert")
+		err = insert(ctx, db, log, &race, simdata)
+		if err != nil {
+			log.Error("insert", slog.Any("err", err))
+			continue
+		}
+		ok++
+	}
+	slog.Info("done", slog.Int("races", ok))
+}