refactor(all): use log/slog instead of golang.org/x/exp/slog

.golangci.yaml

@@ -30,6 +30,10 @@ linters-settings:
         deny:
           - pkg: golang.org/x/net/context
             desc: Should be replaced by standard lib context package
+          - pkg: golang.org/x/exp/slog
+            desc: Should be replaced by standard lib slog package
+          - pkg: golang.org/x/exp/slices
+            desc: Should be replaced by standard lib slices package
   godot:
     exclude:
       - "^ TODO"

cmd/benchmark/save_command.go

@@ -7,11 +7,11 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"log/slog"
 	"os"
 	"time"
 
 	"github.com/urfave/cli/v2"
-	"golang.org/x/exp/slog"
 
 	"github.com/kakao/varlog/internal/benchmark"
 	"github.com/kakao/varlog/internal/benchmark/database"

cmd/benchmark/serve_command.go

@@ -1,13 +1,13 @@
 package main
 
 import (
+	"log/slog"
 	"os"
 	"os/signal"
 	"sync"
 	"syscall"
 
 	"github.com/urfave/cli/v2"
-	"golang.org/x/exp/slog"
 
 	"github.com/kakao/varlog/internal/benchmark/server"
 )

internal/benchmark/benchmark.go

@@ -3,14 +3,15 @@ package benchmark
 import (
 	"context"
 	"fmt"
+	"log/slog"
 	"os"
 	"os/signal"
 	"sync"
 	"syscall"
 	"time"
 
 	"go.uber.org/multierr"
-	"golang.org/x/exp/slog"
+
 	"golang.org/x/sync/errgroup"
 )
 
@@ -28,9 +29,9 @@ func New(opts ...Option) (bm *Benchmark, err error) {
 		return nil, err
 	}
 
-	logger := slog.New(slog.HandlerOptions{
-		Level: slog.InfoLevel.Level(),
-	}.NewTextHandler(os.Stdout))
+	logger := slog.New(slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{
+		Level: slog.LevelInfo,
+	}))
 	slog.SetDefault(logger)
 
 	bm = &Benchmark{

internal/benchmark/loader.go

@@ -4,11 +4,10 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"log/slog"
 	"time"
 
 	"go.uber.org/multierr"
-	"go.uber.org/zap"
-	"golang.org/x/exp/slog"
 	"golang.org/x/sync/errgroup"
 
 	"github.com/kakao/varlog/pkg/types"
@@ -271,7 +270,7 @@ func (loader *Loader) subscribeLoop(ctx context.Context, c varlog.Log) error {
 				close(stop)
 				return
 			}
-			loader.logger.Debug("subscribed", zap.String("log", logEntry.String()))
+			loader.logger.Debug("subscribed", slog.String("log", logEntry.String()))
 			sm.logs++
 			sm.bytes += int64(len(logEntry.Data))
 			if loader.metrics.ReportSubscribeMetrics(sm) {

internal/benchmark/server/server.go

@@ -6,14 +6,14 @@ import (
 	"errors"
 	"fmt"
 	"html/template"
+	"log/slog"
 	"net"
 	"net/http"
 	"sort"
 	"strconv"
 	"strings"
 
 	_ "github.com/lib/pq"
-	"golang.org/x/exp/slog"
 
 	"github.com/kakao/varlog/internal/benchmark/model/macro/metric"
 	"github.com/kakao/varlog/internal/benchmark/model/macro/result"