reuse hash code

pkg/cwhub/sync.go

@@ -1,10 +1,7 @@
 package cwhub
 
 import (
-	"crypto/sha256"
-	"encoding/hex"
 	"fmt"
-	"io"
 	"os"
 	"path/filepath"
 	"slices"
@@ -12,6 +9,7 @@ import (
 	"strings"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/crowdsecurity/go-cs-lib/downloader"
 	"github.com/sirupsen/logrus"
 	"gopkg.in/yaml.v3"
 )
@@ -38,22 +36,6 @@ func linkTarget(path string, logger *logrus.Logger) (string, error) {
 	return hubpath, nil
 }
 
-func getSHA256(filepath string) (string, error) {
-	f, err := os.Open(filepath)
-	if err != nil {
-		return "", fmt.Errorf("unable to open '%s': %w", filepath, err)
-	}
-
-	defer f.Close()
-
-	h := sha256.New()
-	if _, err := io.Copy(h, f); err != nil {
-		return "", fmt.Errorf("unable to calculate sha256 of '%s': %w", filepath, err)
-	}
-
-	return hex.EncodeToString(h.Sum(nil)), nil
-}
-
 // information used to create a new Item, from a file path.
 type itemFileInfo struct {
 	fname   string
@@ -466,7 +448,7 @@ func (h *Hub) localSync() error {
 func (i *Item) setVersionState(path string, inhub bool) error {
 	var err error
 
-	i.State.LocalHash, err = getSHA256(path)
+	i.State.LocalHash, err = downloader.SHA256(path)
 	if err != nil {
 		return fmt.Errorf("failed to get sha256 of %s: %w", path, err)
 	}