feat: add export library

cmd/export-library/main.go

@@ -0,0 +1,97 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+	"time"
+
+	rotatelogs "github.com/lestrrat-go/file-rotatelogs"
+	"github.com/rifflock/lfshook"
+	"github.com/samuelncui/yatm/config"
+	"github.com/samuelncui/yatm/entity"
+	"github.com/samuelncui/yatm/library"
+	"github.com/samuelncui/yatm/resource"
+	"github.com/sirupsen/logrus"
+)
+
+var (
+	configOpt = flag.String("config", "./config.yaml", "config file path")
+	typesOpt  = flag.String("types", "file,tape,position", "types wants to be exported")
+	outputOpt = flag.String("output", "stdout", "output file path, default use stdout")
+)
+
+func main() {
+	ctx := context.Background()
+
+	logWriter, err := rotatelogs.New(
+		"./run.log.%Y%m%d%H%M",
+		rotatelogs.WithLinkName("./run.log"),
+		rotatelogs.WithMaxAge(time.Duration(86400)*time.Second),
+		rotatelogs.WithRotationTime(time.Duration(604800)*time.Second),
+	)
+	if err != nil {
+		panic(err)
+	}
+	logrus.AddHook(lfshook.NewHook(
+		lfshook.WriterMap{
+			logrus.InfoLevel:  logWriter,
+			logrus.ErrorLevel: logWriter,
+		},
+		&logrus.TextFormatter{},
+	))
+
+	flag.Parse()
+	conf := config.GetConfig(*configOpt)
+
+	db, err := resource.NewDBConn(conf.Database.Dialect, conf.Database.DSN)
+	if err != nil {
+		panic(err)
+	}
+
+	lib := library.New(db)
+	if err := lib.AutoMigrate(); err != nil {
+		panic(err)
+	}
+
+	parts := strings.Split(*typesOpt, ",")
+
+	toEnum := entity.ToEnum(entity.LibraryEntityType_value, entity.LibraryEntityType_NONE)
+	types := make([]entity.LibraryEntityType, 0, len(parts))
+	for _, part := range parts {
+		e := toEnum(strings.ToUpper(strings.TrimSpace(part)))
+		if e == entity.LibraryEntityType_NONE {
+			continue
+		}
+
+		types = append(types, e)
+	}
+	if len(types) == 0 {
+		panic(fmt.Errorf("cannot found types, use 'types' option to specify at least one type"))
+	}
+
+	jsonBuf, err := lib.Export(ctx, types)
+	if err != nil {
+		panic(fmt.Errorf("export json fail, %w", err))
+	}
+
+	f := func() io.WriteCloser {
+		if *outputOpt == "stdout" {
+			return os.Stdout
+		}
+
+		f, err := os.Create(*outputOpt)
+		if err != nil {
+			panic(fmt.Errorf("open output file fail, path= '%s', %w", *outputOpt, err))
+		}
+		return f
+	}()
+
+	defer f.Close()
+	if _, err := f.Write(jsonBuf); err != nil {
+		panic(fmt.Errorf("write output file fail, %w", err))
+	}
+}