refactor: replace go-multierror with stdlib methods

Go 1.20 added support for wrapping multiple errors.

Replace multierror libs with stdlib methods

go.mod

@@ -8,8 +8,6 @@ require (
 	github.com/elastic/go-ucfg v0.8.5
 	github.com/fatih/color v1.13.0
 	github.com/gofrs/uuid v4.4.0+incompatible
-	github.com/hashicorp/go-multierror v1.1.1
-	github.com/joeshaw/multierror v0.0.0-20140124173710-69b34d4ec901
 	github.com/magefile/mage v1.13.0
 	github.com/mattn/go-colorable v0.1.12
 	github.com/mitchellh/hashstructure v1.1.0
@@ -36,9 +34,9 @@ require (
 	github.com/elastic/go-windows v1.0.1 // indirect
 	github.com/gobuffalo/here v0.6.0 // indirect
 	github.com/google/licenseclassifier v0.0.0-20200402202327-879cb1424de0 // indirect
-	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jcchavezs/porto v0.1.0 // indirect
+	github.com/joeshaw/multierror v0.0.0-20140124173710-69b34d4ec901 // indirect
 	github.com/karrick/godirwalk v1.15.6 // indirect
 	github.com/markbates/pkger v0.17.0 // indirect
 	github.com/mattn/go-isatty v0.0.14 // indirect

go.sum

@@ -33,11 +33,6 @@ github.com/google/go-cmp v0.5.4 h1:L8R9j+yAqZuZjsqh/z+F1NCffTKKLShY6zXTItVIZ8M=
 github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/licenseclassifier v0.0.0-20200402202327-879cb1424de0 h1:OggOMmdI0JLwg1FkOKH9S7fVHF0oEm8PX6S8kAdpOps=
 github.com/google/licenseclassifier v0.0.0-20200402202327-879cb1424de0/go.mod h1:qsqn2hxC+vURpyBRygGUuinTO42MFRLcsmQ/P8v94+M=
-github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
-github.com/hashicorp/errwrap v1.1.0 h1:OxrOeh75EUXMY8TBjag2fzXGZ40LB6IKw45YeGUDY2I=
-github.com/hashicorp/errwrap v1.1.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
-github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
-github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/jcchavezs/porto v0.1.0 h1:Xmxxn25zQMmgE7/yHYmh19KcItG81hIwfbEEFnd6w/Q=

kibana/client.go

@@ -22,6 +22,7 @@ import (
 	"context"
 	"encoding/base64"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -33,8 +34,6 @@ import (
 	"path"
 	"strings"
 
-	"github.com/joeshaw/multierror"
-
 	"github.com/elastic/elastic-agent-libs/config"
 	"github.com/elastic/elastic-agent-libs/logp"
 	"github.com/elastic/elastic-agent-libs/transport/httpcommon"
@@ -84,15 +83,15 @@ func extractError(result []byte) error {
 	if err := json.Unmarshal(result, &kibanaResult); err != nil {
 		return fmt.Errorf("error extracting JSON for error response: %w", err)
 	}
-	var errs multierror.Errors
+	var errs []error
 	if kibanaResult.Message != "" {
 		for _, err := range kibanaResult.Attributes.Objects {
 			errs = append(errs, fmt.Errorf("id: %s, message: %s", err.ID, err.Error.Message))
 		}
-		if errs == nil {
+		if len(errs) == 0 {
 			return fmt.Errorf("%s", kibanaResult.Message)
 		}
-		return fmt.Errorf("%s: %w", kibanaResult.Message, errs.Err())
+		return fmt.Errorf("%s: %w", kibanaResult.Message, errors.Join(errs...))
 
 	}
 	return nil
@@ -118,11 +117,11 @@ func extractMessage(result []byte) error {
 	}
 
 	if !kibanaResult.Success {
-		var errs multierror.Errors
+		var errs []error
 		for _, err := range kibanaResult.Errors {
 			errs = append(errs, fmt.Errorf("error: %s, asset ID=%s; asset type=%s; references=%+v", err.Error.Type, err.ID, err.Type, err.Error.References))
 		}
-		return errs.Err()
+		return errors.Join(errs...)
 	}
 
 	return nil

logp/cfgwarn/removed.go

@@ -18,23 +18,22 @@
 package cfgwarn
 
 import (
+	"errors"
 	"fmt"
 	"strings"
 
-	"github.com/joeshaw/multierror"
-
 	"github.com/elastic/elastic-agent-libs/config"
 )
 
 func checkRemovedSettings(cfg *config.C, settings ...string) error {
-	var errs multierror.Errors
+	var errs []error
 	for _, setting := range settings {
 		if err := checkRemovedSetting(cfg, setting); err != nil {
 			errs = append(errs, err)
 		}
 	}
 
-	return errs.Err()
+	return errors.Join(errs...)
 }
 
 func checkRemovedSetting(cfg *config.C, setting string) error {

logp/cfgwarn/removed_test.go

@@ -21,7 +21,6 @@ import (
 	"errors"
 	"testing"
 
-	"github.com/joeshaw/multierror"
 	"github.com/stretchr/testify/assert"
 
 	"github.com/elastic/elastic-agent-libs/config"
@@ -93,7 +92,7 @@ func TestRemovedSettings(t *testing.T) {
 			cfg: config.MustNewConfigFrom(map[string]interface{}{
 				"hello.world": "ok",
 			}),
-			expected: multierror.Errors{errors.New("setting 'hello' has been removed")}.Err(),
+			expected: errors.Join(errors.New("setting 'hello' has been removed")),
 		},
 		{
 			name:   "multiple obsolete settings",
@@ -102,10 +101,10 @@ func TestRemovedSettings(t *testing.T) {
 				"hello.world": "ok",
 				"bad":         "true",
 			}),
-			expected: multierror.Errors{
+			expected: errors.Join(
 				errors.New("setting 'hello' has been removed"),
 				errors.New("setting 'bad' has been removed"),
-			}.Err(),
+			),
 		},
 		{
 			name:   "multiple obsolete settings not on first level",
@@ -114,10 +113,10 @@ func TestRemovedSettings(t *testing.T) {
 				"filebeat.prospectors":        "ok",
 				"filebeat.config.prospectors": map[string]interface{}{"ok": "ok1"},
 			}),
-			expected: multierror.Errors{
+			expected: errors.Join(
 				errors.New("setting 'filebeat.config.prospectors' has been removed"),
 				errors.New("setting 'filebeat.prospectors' has been removed"),
-			}.Err(),
+			),
 		},
 	}
 

logp/core.go

@@ -18,6 +18,7 @@
 package logp
 
 import (
+	"errors"
 	"flag"
 	"fmt"
 	"io/ioutil"
@@ -28,8 +29,6 @@ import (
 	"sync/atomic"
 	"unsafe"
 
-	"github.com/hashicorp/go-multierror"
-
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
 	"go.uber.org/zap/zaptest/observer"
@@ -325,22 +324,22 @@ func (m multiCore) Check(entry zapcore.Entry, checked *zapcore.CheckedEntry) *za
 
 // Write writes the entry to each core.
 func (m multiCore) Write(entry zapcore.Entry, fields []zapcore.Field) error {
-	var errs error
+	var errs []error
 	for _, core := range m.cores {
 		if err := core.Write(entry, fields); err != nil {
-			errs = multierror.Append(errs, err)
+			errs = append(errs, err)
 		}
 	}
-	return errs
+	return errors.Join(errs...)
 }
 
 // Sync syncs each core.
 func (m multiCore) Sync() error {
-	var errs error
+	var errs []error
 	for _, core := range m.cores {
 		if err := core.Sync(); err != nil {
-			errs = multierror.Append(errs, err)
+			errs = append(errs, err)
 		}
 	}
-	return errs
+	return errors.Join(errs...)
 }

transport/tlscommon/config.go

@@ -19,10 +19,9 @@ package tlscommon
 
 import (
 	"crypto/tls"
+	"errors"
 	"sync"
 
-	"github.com/joeshaw/multierror"
-
 	"github.com/elastic/elastic-agent-libs/logp/cfgwarn"
 )
 
@@ -51,7 +50,7 @@ func LoadTLSConfig(config *Config) (*TLSConfig, error) {
 		return nil, nil
 	}
 
-	fail := multierror.Errors{}
+	var fail []error
 	logFail := func(es ...error) {
 		for _, e := range es {
 			if e != nil {
@@ -72,8 +71,8 @@ func LoadTLSConfig(config *Config) (*TLSConfig, error) {
 	logFail(errs...)
 
 	// fail, if any error occurred when loading certificate files
-	if err = fail.Err(); err != nil {
-		return nil, err
+	if len(fail) != 0 {
+		return nil, errors.Join(fail...)
 	}
 
 	certs := make([]tls.Certificate, 0)

transport/tlscommon/server_config.go

@@ -19,10 +19,9 @@ package tlscommon
 
 import (
 	"crypto/tls"
+	"errors"
 	"fmt"
 
-	"github.com/joeshaw/multierror"
-
 	"github.com/elastic/elastic-agent-libs/config"
 )
 
@@ -46,7 +45,7 @@ func LoadTLSServerConfig(config *ServerConfig) (*TLSConfig, error) {
 		return nil, nil
 	}
 
-	fail := multierror.Errors{}
+	var fail []error
 	logFail := func(es ...error) {
 		for _, e := range es {
 			if e != nil {
@@ -72,8 +71,8 @@ func LoadTLSServerConfig(config *ServerConfig) (*TLSConfig, error) {
 	logFail(errs...)
 
 	// fail, if any error occurred when loading certificate files
-	if err = fail.Err(); err != nil {
-		return nil, err
+	if len(fail) != 0 {
+		return nil, errors.Join(fail...)
 	}
 
 	certs := make([]tls.Certificate, 0)