[#23] pre-commit: Add golangci-lint hook

Also, fix minor issues. Skip deprecated warning for now.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

.golangci.yml

@@ -24,6 +24,9 @@ linters-settings:
   govet:
     # report about shadowed variables
     check-shadowing: false
+  staticcheck:
+    checks: ["all", "-SA1019"] # TODO Enable SA1019 after deprecated warning are fixed.
+
 
 linters:
   enable:

.pre-commit-config.yaml

@@ -17,3 +17,8 @@ repos:
       args: [--markdown-linebreak-ext=md]
     - id: end-of-file-fixer
       exclude: ".key$"
+
+  - repo: https://github.com/golangci/golangci-lint
+    rev: v1.51.2
+    hooks:
+    - id: golangci-lint

object/object.go

@@ -117,7 +117,7 @@ func (o *Object) Signature() *frostfscrypto.Signature {
 	}
 
 	var sig frostfscrypto.Signature
-	sig.ReadFromV2(*sigv2) // FIXME(@cthulhu-rider): #226 handle error
+	_ = sig.ReadFromV2(*sigv2) // FIXME(@cthulhu-rider): #226 handle error
 
 	return &sig
 }
@@ -149,7 +149,7 @@ func (o *Object) SetPayload(v []byte) {
 func (o *Object) Version() *version.Version {
 	var ver version.Version
 	if verV2 := (*object.Object)(o).GetHeader().GetVersion(); verV2 != nil {
-		ver.ReadFromV2(*verV2) // FIXME(@cthulhu-rider): #226 handle error
+		_ = ver.ReadFromV2(*verV2) // FIXME(@cthulhu-rider): #226 handle error
 	}
 	return &ver
 }
@@ -248,7 +248,7 @@ func (o *Object) PayloadChecksum() (checksum.Checksum, bool) {
 	v2 := (*object.Object)(o)
 
 	if hash := v2.GetHeader().GetPayloadHash(); hash != nil {
-		v.ReadFromV2(*hash) // FIXME(@cthulhu-rider): #226 handle error
+		_ = v.ReadFromV2(*hash) // FIXME(@cthulhu-rider): #226 handle error
 		return v, true
 	}
 
@@ -278,7 +278,7 @@ func (o *Object) PayloadHomomorphicHash() (checksum.Checksum, bool) {
 	v2 := (*object.Object)(o)
 
 	if hash := v2.GetHeader().GetHomomorphicHash(); hash != nil {
-		v.ReadFromV2(*hash) // FIXME(@cthulhu-rider): #226 handle error
+		_ = v.ReadFromV2(*hash) // FIXME(@cthulhu-rider): #226 handle error
 		return v, true
 	}
 

storagegroup/storagegroup.go

@@ -114,7 +114,7 @@ func (sg *StorageGroup) SetValidationDataSize(epoch uint64) {
 func (sg StorageGroup) ValidationDataHash() (v checksum.Checksum, isSet bool) {
 	v2 := (storagegroup.StorageGroup)(sg)
 	if checksumV2 := v2.GetValidationHash(); checksumV2 != nil {
-		v.ReadFromV2(*checksumV2) // FIXME(@cthulhu-rider): #226 handle error
+		_ = v.ReadFromV2(*checksumV2) // FIXME(@cthulhu-rider): #226 handle error
 		isSet = true
 	}