Replace many minor usages of errors with errkit

go.mod

@@ -33,7 +33,7 @@ require (
 	github.com/jpillora/backoff v1.0.0
 	github.com/json-iterator/go v1.1.12
 	github.com/kanisterio/errkit v0.0.2
-	github.com/kanisterio/safecli v0.0.8
+	github.com/kanisterio/safecli v0.0.9-0.20241121134252-2ffd9801dcad
 	github.com/kopia/kopia v0.17.1-0.20240927044625-1bceb7155ede
 	github.com/kubernetes-csi/external-snapshotter/client/v4 v4.2.0
 	github.com/lib/pq v1.10.9

go.sum

@@ -375,8 +375,8 @@ github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1
 github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/XSXhF0NWZEnDohbsk=
 github.com/kanisterio/errkit v0.0.2 h1:3v3HGz9lHIbZR6Jr9qIJpRjaqUX0rsJSLMEQGsMHiUk=
 github.com/kanisterio/errkit v0.0.2/go.mod h1:ViQ6kPJ2gTJDEvRytmwde7pzG9/sndObF9BPZoEZixc=
-github.com/kanisterio/safecli v0.0.8 h1:flvTiGksy/a0+zvqjaBSJwxESu/nFcG65yttmR0XwiA=
-github.com/kanisterio/safecli v0.0.8/go.mod h1:KBraqj8mdv2cwAr9wecknGUb8jztTzUik0r7uE6yRA8=
+github.com/kanisterio/safecli v0.0.9-0.20241121134252-2ffd9801dcad h1:JaC21jpch32i3hfUE3m1So06CvPoi+sdQ2KKIRCRKCo=
+github.com/kanisterio/safecli v0.0.9-0.20241121134252-2ffd9801dcad/go.mod h1:y1oYVoT2eqsmySCIS5yOzrxaYVywlMSEdWEKfLhBjgs=
 github.com/kastenhq/check v0.0.0-20180626002341-0264cfcea734 h1:qulsCaCv+O2y9/sQ9nd5KChnAgFOWakTHQ9ZADjs6DQ=
 github.com/kastenhq/check v0.0.0-20180626002341-0264cfcea734/go.mod h1:rdqSnvOJuKCPFW/h2rVLuXOAkRnHHdp9PZcKx4HCoDM=
 github.com/kastenhq/stow v0.2.6-kasten.1.0.20231101232131-9321daa23aae h1:2cl4yuAJpdmLCx7G8eIsfNlQBLEfw0JDj6mTTyqc5qg=

pkg/kanx/server.go

@@ -3,7 +3,6 @@ package kanx
 import (
 	"bytes"
 	"context"
-	"fmt"
 	"io"
 	"net"
 	"os"
@@ -12,7 +11,7 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/pkg/errors"
+	"github.com/kanisterio/errkit"
 	"google.golang.org/grpc"
 
 	"github.com/kanisterio/kanister/pkg/field"
@@ -117,12 +116,12 @@ func (s *processServiceServer) ListProcesses(lpr *ListProcessesRequest, lps Proc
 	return nil
 }
 
-var errProcessNotFound = fmt.Errorf("Process not found")
+var errProcessNotFound = errkit.NewSentinelErr("Process not found")
 
 func (s *processServiceServer) Stdout(por *ProcessOutputRequest, ss ProcessService_StdoutServer) error {
 	p, ok := s.processes[por.Pid]
 	if !ok {
-		return errors.WithStack(errProcessNotFound)
+		return errkit.WithStack(errProcessNotFound)
 	}
 	fh, err := os.Open(p.stdout.Name())
 	if err != nil {
@@ -134,7 +133,7 @@ func (s *processServiceServer) Stdout(por *ProcessOutputRequest, ss ProcessServi
 func (s *processServiceServer) Stderr(por *ProcessOutputRequest, ss ProcessService_StderrServer) error {
 	p, ok := s.processes[por.Pid]
 	if !ok {
-		return errors.WithStack(errProcessNotFound)
+		return errkit.WithStack(errProcessNotFound)
 	}
 	fh, err := os.Open(p.stderr.Name())
 	if err != nil {

pkg/kopia/cli/internal/test/command_suite.go

@@ -15,9 +15,9 @@
 package test
 
 import (
+	"github.com/kanisterio/errkit"
 	"github.com/kanisterio/safecli"
 	"github.com/kanisterio/safecli/test"
-	"github.com/pkg/errors"
 	"gopkg.in/check.v1"
 )
 
@@ -62,8 +62,7 @@ func (t *CommandTest) assertNoError(c *check.C, err error) {
 
 // assertError checks the error against ExpectedErr.
 func (t *CommandTest) assertError(c *check.C, err error) {
-	actualErr := errors.Cause(err)
-	c.Assert(actualErr, check.Equals, t.ExpectedErr)
+	c.Assert(errkit.Is(err, t.ExpectedErr), check.Equals, true)
 }
 
 // assertCLI asserts the builder's CLI output against ExpectedCLI.

pkg/kube/pod.go

@@ -450,7 +450,7 @@ func checkPVCAndPVStatus(ctx context.Context, vol corev1.Volume, p *corev1.Pod,
 	pvcName := vol.VolumeSource.PersistentVolumeClaim.ClaimName
 	pvc, err := cli.CoreV1().PersistentVolumeClaims(namespace).Get(ctx, pvcName, metav1.GetOptions{})
 	if err != nil {
-		if apierrors.IsNotFound(errors.Cause(err)) {
+		if apierrors.IsNotFound(err) {
 			// Do not return err, wait for timeout, since sometimes in case of statefulsets, they trigger creation of a volume
 			return nil
 		}
@@ -469,7 +469,7 @@ func checkPVCAndPVStatus(ctx context.Context, vol corev1.Volume, p *corev1.Pod,
 		}
 		pv, err := cli.CoreV1().PersistentVolumes().Get(ctx, pvName, metav1.GetOptions{})
 		if err != nil {
-			if apierrors.IsNotFound(errors.Cause(err)) {
+			if apierrors.IsNotFound(err) {
 				// wait for timeout
 				return nil
 			}

pkg/kube/pod_test.go

@@ -19,14 +19,15 @@ package kube
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"os"
 	"strings"
 	"time"
 
+	"github.com/kanisterio/errkit"
 	"gopkg.in/check.v1"
 	corev1 "k8s.io/api/core/v1"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
@@ -1244,3 +1245,18 @@ func (s *PodSuite) TestAddAnnotations(c *check.C) {
 		c.Assert(tc.podOptions, check.DeepEquals, tc.expectedPodOptions)
 	}
 }
+
+func (s *PodSuite) TestSomething(c *check.C) {
+	// Create the fake client
+	fakeClient := fake.NewSimpleClientset()
+
+	// Add a reactor to simulate an error when trying to get a PVC
+	fakeClient.PrependReactor("get", "persistentvolumeclaims", func(action testing.Action) (handled bool, ret runtime.Object, err error) {
+		return true, nil, apierrors.NewNotFound(action.GetResource().GroupResource(), action.GetSubresource())
+	})
+
+	_, err := fakeClient.CoreV1().PersistentVolumeClaims("abc").Get(context.TODO(), "def", metav1.GetOptions{})
+	if err != nil {
+		c.Assert(apierrors.IsNotFound(err), check.Equals, true)
+	}
+}

pkg/metrics/metrics.go

@@ -15,9 +15,9 @@
 package metrics
 
 import (
-	"errors"
 	"fmt"
 
+	"github.com/kanisterio/errkit"
 	"github.com/prometheus/client_golang/prometheus"
 	"gonum.org/v1/gonum/stat/combin"
 
@@ -241,7 +241,7 @@ func registerGauge(r prometheus.Registerer, g prometheus.Gauge) prometheus.Gauge
 func registerMetricOrDie(r prometheus.Registerer, c prometheus.Collector) prometheus.Collector {
 	if err := r.Register(c); err != nil {
 		are := prometheus.AlreadyRegisteredError{}
-		if !errors.As(err, &are) {
+		if !errkit.As(err, &are) {
 			panic(fmt.Sprintf("failed to register metric. error: %v", err))
 		}
 		// Use already registered metric