feat: replace github.com/pkg/errors to errors

Signed-off-by: haoyun <yun.hao@daocloud.io>
Co-authored-by: zounengren <zouyee1989@gmail.com>

content/local/writer.go

@@ -18,6 +18,8 @@ package local
 
 import (
 	"context"
+	"errors"
+	"fmt"
 	"io"
 	"os"
 	"path/filepath"
@@ -28,7 +30,6 @@ import (
 	"github.com/containerd/containerd/errdefs"
 	"github.com/containerd/containerd/log"
 	"github.com/opencontainers/go-digest"
-	"github.com/pkg/errors"
 )
 
 // writer represents a write transaction against the blob store.
@@ -88,30 +89,30 @@ func (w *writer) Commit(ctx context.Context, size int64, expected digest.Digest,
 	w.fp = nil
 
 	if fp == nil {
-		return errors.Wrap(errdefs.ErrFailedPrecondition, "cannot commit on closed writer")
+		return fmt.Errorf("cannot commit on closed writer: %w", errdefs.ErrFailedPrecondition)
 	}
 
 	if err := fp.Sync(); err != nil {
 		fp.Close()
-		return errors.Wrap(err, "sync failed")
+		return fmt.Errorf("sync failed: %w", err)
 	}
 
 	fi, err := fp.Stat()
 	closeErr := fp.Close()
 	if err != nil {
-		return errors.Wrap(err, "stat on ingest file failed")
+		return fmt.Errorf("stat on ingest file failed: %w", err)
 	}
 	if closeErr != nil {
-		return errors.Wrap(err, "failed to close ingest file")
+		return fmt.Errorf("failed to close ingest file: %w", err)
 	}
 
 	if size > 0 && size != fi.Size() {
-		return errors.Wrapf(errdefs.ErrFailedPrecondition, "unexpected commit size %d, expected %d", fi.Size(), size)
+		return fmt.Errorf("unexpected commit size %d, expected %d: %w", fi.Size(), size, errdefs.ErrFailedPrecondition)
 	}
 
 	dgst := w.digester.Digest()
 	if expected != "" && expected != dgst {
-		return errors.Wrapf(errdefs.ErrFailedPrecondition, "unexpected commit digest %s, expected %s", dgst, expected)
+		return fmt.Errorf("unexpected commit digest %s, expected %s: %w", dgst, expected, errdefs.ErrFailedPrecondition)
 	}
 
 	var (
@@ -129,7 +130,7 @@ func (w *writer) Commit(ctx context.Context, size int64, expected digest.Digest,
 		if err := os.RemoveAll(w.path); err != nil {
 			log.G(ctx).WithField("ref", w.ref).WithField("path", w.path).Error("failed to remove ingest directory")
 		}
-		return errors.Wrapf(errdefs.ErrAlreadyExists, "content %v", dgst)
+		return fmt.Errorf("content %v: %w", dgst, errdefs.ErrAlreadyExists)
 	}
 
 	if err := os.Rename(ingest, target); err != nil {