chore: remove dependency on unmaintained 'errors' package (#490)

go.mod

@@ -10,7 +10,6 @@ require (
 	github.com/google/go-github/v35 v35.0.0
 	github.com/imdario/mergo v0.3.12
 	github.com/jeremywohl/flatten v1.0.1
-	github.com/pkg/errors v0.9.1
 	github.com/sirupsen/logrus v1.8.1
 	github.com/stretchr/testify v1.7.0
 	github.com/valyala/fasttemplate v1.2.1

pkg/controllers/applicationset_controller_test.go

@@ -3,7 +3,6 @@ package controllers
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"reflect"
 	"strings"
@@ -103,7 +102,7 @@ func TestExtractApplications(t *testing.T) {
 		},
 		{
 			name:                "Handles error from the generator",
-			generateParamsError: errors.New("error"),
+			generateParamsError: fmt.Errorf("error"),
 			expectErr:           true,
 			expectedReason:      v1alpha1.ApplicationSetReasonApplicationParamsGenerationError,
 		},
@@ -118,7 +117,7 @@ func TestExtractApplications(t *testing.T) {
 				},
 				Spec: argov1alpha1.ApplicationSpec{},
 			},
-			rendererError:  errors.New("error"),
+			rendererError:  fmt.Errorf("error"),
 			expectErr:      true,
 			expectedReason: v1alpha1.ApplicationSetReasonRenderTemplateParamsError,
 		},
@@ -1620,7 +1619,7 @@ func TestValidateGeneratedApplications(t *testing.T) {
 				},
 			},
 			expectedErrors:   []string{"application destination can't have both name and server defined"},
-			validationErrors: map[int]error{0: errors.New("application destination spec is invalid: application destination can't have both name and server defined: my-cluster my-server")},
+			validationErrors: map[int]error{0: fmt.Errorf("application destination spec is invalid: application destination can't have both name and server defined: my-cluster my-server")},
 		},
 		{
 			name: "project mismatch should return error",
@@ -1643,7 +1642,7 @@ func TestValidateGeneratedApplications(t *testing.T) {
 				},
 			},
 			expectedErrors:   []string{"application references project DOES-NOT-EXIST which does not exist"},
-			validationErrors: map[int]error{0: errors.New("application references project DOES-NOT-EXIST which does not exist")},
+			validationErrors: map[int]error{0: fmt.Errorf("application references project DOES-NOT-EXIST which does not exist")},
 		},
 		{
 			name: "valid app should return true",
@@ -1689,7 +1688,7 @@ func TestValidateGeneratedApplications(t *testing.T) {
 				},
 			},
 			expectedErrors:   []string{"there are no clusters with this name: nonexistent-cluster"},
-			validationErrors: map[int]error{0: errors.New("application destination spec is invalid: unable to find destination server: there are no clusters with this name: nonexistent-cluster")},
+			validationErrors: map[int]error{0: fmt.Errorf("application destination spec is invalid: unable to find destination server: there are no clusters with this name: nonexistent-cluster")},
 		},
 	} {
 

pkg/generators/cluster_test.go

@@ -2,7 +2,7 @@ package generators
 
 import (
 	"context"
-	"errors"
+	"fmt"
 
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -25,7 +25,7 @@ type possiblyErroringFakeCtrlRuntimeClient struct {
 
 func (p *possiblyErroringFakeCtrlRuntimeClient) List(ctx context.Context, secretList client.ObjectList, opts ...client.ListOption) error {
 	if p.shouldError {
-		return errors.New("could not list Secrets")
+		return fmt.Errorf("could not list Secrets")
 	}
 	return p.Client.List(ctx, secretList, opts...)
 }
@@ -200,7 +200,7 @@ func TestGenerateParams(t *testing.T) {
 			values:        nil,
 			expected:      nil,
 			clientError:   true,
-			expectedError: errors.New("could not list Secrets"),
+			expectedError: fmt.Errorf("could not list Secrets"),
 		},
 	}
 

pkg/generators/duck_type.go

@@ -2,7 +2,6 @@ package generators
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"strings"
 	"time"
@@ -98,14 +97,14 @@ func (g *DuckTypeGenerator) GenerateParams(appSetGenerator *argoprojiov1alpha1.A
 	// Validate the fields
 	if kind == "" || versionIdx < 1 {
 		log.Warningf("kind=%v, resourceName=%v, versionIdx=%v", kind, resourceName, versionIdx)
-		return nil, errors.New("There is a problem with the apiVersion, kind or resourceName provided")
+		return nil, fmt.Errorf("There is a problem with the apiVersion, kind or resourceName provided")
 	}
 
 	if (resourceName == "" && labelSelector.MatchLabels == nil && labelSelector.MatchExpressions == nil) ||
 		(resourceName != "" && (labelSelector.MatchExpressions != nil || labelSelector.MatchLabels != nil)) {
 
 		log.Warningf("You must choose either resourceName=%v, labelSelector.matchLabels=%v or labelSelect.matchExpressions=%v", resourceName, labelSelector.MatchLabels, labelSelector.MatchExpressions)
-		return nil, errors.New("There is a problem with the definition of the ClusterDecisionResource generator")
+		return nil, fmt.Errorf("There is a problem with the definition of the ClusterDecisionResource generator")
 	}
 
 	// Split up the apiVersion
@@ -134,7 +133,7 @@ func (g *DuckTypeGenerator) GenerateParams(appSetGenerator *argoprojiov1alpha1.A
 
 	if len(duckResources.Items) == 0 {
 		log.Warning("no resource found, make sure you clusterDecisionResource is defined correctly")
-		return nil, errors.New("no clusterDecisionResources found")
+		return nil, fmt.Errorf("no clusterDecisionResources found")
 	}
 
 	// Override the duck type in the status of the resource

pkg/generators/duck_type_test.go

@@ -2,7 +2,7 @@ package generators
 
 import (
 	"context"
-	"errors"
+	"fmt"
 
 	argoprojiov1alpha1 "github.com/argoproj/applicationset/api/v1alpha1"
 	"github.com/stretchr/testify/assert"
@@ -157,7 +157,7 @@ func TestGenerateParamsForDuckType(t *testing.T) {
 			resource:      duckType,
 			values:        nil,
 			expected:      []map[string]string{},
-			expectedError: errors.New("There is a problem with the definition of the ClusterDecisionResource generator"),
+			expectedError: fmt.Errorf("There is a problem with the definition of the ClusterDecisionResource generator"),
 		},
 		/*** This does not work with the FAKE runtime client, fieldSelectors are broken.
 		{
@@ -166,7 +166,7 @@ func TestGenerateParamsForDuckType(t *testing.T) {
 			resource:      duckType,
 			values:        nil,
 			expected:      []map[string]string{},
-			expectedError: errors.New("duck.mallard.io \"quak\" not found"),
+			expectedError: fmt.Errorf("duck.mallard.io \"quak\" not found"),
 		},
 		***/
 		{
@@ -268,7 +268,7 @@ func TestGenerateParamsForDuckType(t *testing.T) {
 			resource:      duckType,
 			values:        nil,
 			expected:      nil,
-			expectedError: errors.New("There is a problem with the definition of the ClusterDecisionResource generator"),
+			expectedError: fmt.Errorf("There is a problem with the definition of the ClusterDecisionResource generator"),
 		},
 	}
 

pkg/generators/interface.go

@@ -1,7 +1,7 @@
 package generators
 
 import (
-	"errors"
+	"fmt"
 	"time"
 
 	argoprojiov1alpha1 "github.com/argoproj/applicationset/api/v1alpha1"
@@ -23,7 +23,7 @@ type Generator interface {
 	GetTemplate(appSetGenerator *argoprojiov1alpha1.ApplicationSetGenerator) *argoprojiov1alpha1.ApplicationSetTemplate
 }
 
-var EmptyAppSetGeneratorError = errors.New("ApplicationSet is empty")
+var EmptyAppSetGeneratorError = fmt.Errorf("ApplicationSet is empty")
 var NoRequeueAfter time.Duration
 
 // DefaultRequeueAfterSeconds is used when GetRequeueAfter is not specified, it is the default time to wait before the next reconcile loop

pkg/generators/matrix.go

@@ -1,7 +1,6 @@
 package generators
 
 import (
-	"errors"
 	"fmt"
 	"time"
 
@@ -12,9 +11,9 @@ import (
 var _ Generator = (*MatrixGenerator)(nil)
 
 var (
-	ErrMoreThanTwoGenerators      = errors.New("found more than two generators, Matrix support only two")
-	ErrLessThanTwoGenerators      = errors.New("found less than two generators, Matrix support only two")
-	ErrMoreThenOneInnerGenerators = errors.New("found more than one generator in matrix.Generators")
+	ErrMoreThanTwoGenerators      = fmt.Errorf("found more than two generators, Matrix support only two")
+	ErrLessThanTwoGenerators      = fmt.Errorf("found less than two generators, Matrix support only two")
+	ErrMoreThenOneInnerGenerators = fmt.Errorf("found more than one generator in matrix.Generators")
 )
 
 type MatrixGenerator struct {

pkg/generators/merge.go

@@ -2,7 +2,6 @@ package generators
 
 import (
 	"encoding/json"
-	"errors"
 	"fmt"
 	"time"
 
@@ -13,9 +12,9 @@ import (
 var _ Generator = (*MergeGenerator)(nil)
 
 var (
-	ErrLessThanTwoGeneratorsInMerge = errors.New("found less than two generators, Merge requires two or more")
-	ErrNoMergeKeys                  = errors.New("no merge keys were specified, Merge requires at least one")
-	ErrNonUniqueParamSets           = errors.New("the parameters from a generator were not unique by the given mergeKeys, Merge requires all param sets to be unique")
+	ErrLessThanTwoGeneratorsInMerge = fmt.Errorf("found less than two generators, Merge requires two or more")
+	ErrNoMergeKeys                  = fmt.Errorf("no merge keys were specified, Merge requires at least one")
+	ErrNonUniqueParamSets           = fmt.Errorf("the parameters from a generator were not unique by the given mergeKeys, Merge requires all param sets to be unique")
 )
 
 type MergeGenerator struct {

pkg/generators/pull_request_test.go

@@ -2,7 +2,7 @@ package generators
 
 import (
 	"context"
-	"errors"
+	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -49,11 +49,11 @@ func TestPullRequestGithubGenerateParams(t *testing.T) {
 				return pullrequest.NewFakeService(
 					ctx,
 					nil,
-					errors.New("fake error"),
+					fmt.Errorf("fake error"),
 				)
 			},
 			expected:    nil,
-			expectedErr: errors.New("error listing repos: fake error"),
+			expectedErr: fmt.Errorf("error listing repos: fake error"),
 		},
 	}
 

pkg/services/repo_service.go

@@ -2,14 +2,14 @@ package services
 
 import (
 	"context"
+	"fmt"
 	"os"
 	"path/filepath"
 	"strings"
 
 	"github.com/argoproj/argo-cd/v2/pkg/apis/application/v1alpha1"
 	"github.com/argoproj/argo-cd/v2/util/db"
 	"github.com/argoproj/argo-cd/v2/util/git"
-	"github.com/pkg/errors"
 )
 
 // RepositoryDB Is a lean facade for ArgoDB,
@@ -41,7 +41,7 @@ func NewArgoCDService(db db.ArgoDB, repoServerAddress string) Repos {
 func (a *argoCDService) GetFiles(ctx context.Context, repoURL string, revision string, pattern string) (map[string][]byte, error) {
 	repo, err := a.repositoriesDB.GetRepository(ctx, repoURL)
 	if err != nil {
-		return nil, errors.Wrap(err, "Error in GetRepository")
+		return nil, fmt.Errorf("Error in GetRepository: %w", err)
 	}
 
 	gitRepoClient, err := git.NewClient(repo.Repo, repo.GetGitCreds(), repo.IsInsecure(), repo.IsLFSEnabled(), repo.Proxy)
@@ -57,7 +57,7 @@ func (a *argoCDService) GetFiles(ctx context.Context, repoURL string, revision s
 
 	paths, err := gitRepoClient.LsFiles(pattern)
 	if err != nil {
-		return nil, errors.Wrap(err, "Error during listing files of local repo")
+		return nil, fmt.Errorf("Error during listing files of local repo: %w", err)
 	}
 
 	res := map[string][]byte{}
@@ -76,7 +76,7 @@ func (a *argoCDService) GetDirectories(ctx context.Context, repoURL string, revi
 
 	repo, err := a.repositoriesDB.GetRepository(ctx, repoURL)
 	if err != nil {
-		return nil, errors.Wrap(err, "Error in GetRepository")
+		return nil, fmt.Errorf("Error in GetRepository: %w", err)
 	}
 
 	gitRepoClient, err := git.NewClient(repo.Repo, repo.GetGitCreds(), repo.IsInsecure(), repo.IsLFSEnabled(), repo.Proxy)
@@ -129,21 +129,21 @@ func (a *argoCDService) GetDirectories(ctx context.Context, repoURL string, revi
 func checkoutRepo(gitRepoClient git.Client, revision string) error {
 	err := gitRepoClient.Init()
 	if err != nil {
-		return errors.Wrap(err, "Error during initializing repo")
+		return fmt.Errorf("Error during initializing repo: %w", err)
 	}
 
 	err = gitRepoClient.Fetch(revision)
 	if err != nil {
-		return errors.Wrap(err, "Error during fetching repo")
+		return fmt.Errorf("Error during fetching repo: %w", err)
 	}
 
 	commitSHA, err := gitRepoClient.LsRemote(revision)
 	if err != nil {
-		return errors.Wrap(err, "Error during fetching commitSHA")
+		return fmt.Errorf("Error during fetching commitSHA: %w", err)
 	}
 	err = gitRepoClient.Checkout(commitSHA)
 	if err != nil {
-		return errors.Wrap(err, "Error during repo checkout")
+		return fmt.Errorf("Error during repo checkout: %w", err)
 	}
 	return nil
 }

pkg/services/repo_service_test.go

@@ -2,7 +2,7 @@ package services
 
 import (
 	"context"
-	"errors"
+	"fmt"
 	"sort"
 	"testing"
 
@@ -60,9 +60,9 @@ func TestGetDirectories(t *testing.T) {
 			repoRes: &v1alpha1.Repository{
 				Repo: "https://github.com/argoproj/argocd-example-apps/",
 			},
-			repoErr:       errors.New("Simulated error from GetRepository"),
+			repoErr:       fmt.Errorf("Simulated error from GetRepository"),
 			expected:      nil,
-			expectedError: errors.New("Error in GetRepository: Simulated error from GetRepository"),
+			expectedError: fmt.Errorf("Error in GetRepository: Simulated error from GetRepository"),
 		},
 		{
 			name: "Test against repository containing no directories",
@@ -162,7 +162,7 @@ func TestGetFiles(t *testing.T) {
 			revision:            "this-tag-does-not-exist",
 			pattern:             "*",
 			expectSubsetOfPaths: []string{},
-			expectedError:       errors.New("Error during fetching repo: `git fetch origin this-tag-does-not-exist --tags --force` failed exit status 128: fatal: couldn't find remote ref this-tag-does-not-exist"),
+			expectedError:       fmt.Errorf("Error during fetching repo: `git fetch origin this-tag-does-not-exist --tags --force` failed exit status 128: fatal: couldn't find remote ref this-tag-does-not-exist"),
 		},
 		{
 			name: "pull a specific revision of example apps, and use a ** pattern",

pkg/utils/clusterUtils_test.go

@@ -2,7 +2,7 @@ package utils
 
 import (
 	"context"
-	"errors"
+	"fmt"
 	"testing"
 
 	"github.com/argoproj/applicationset/test/e2e/fixture/applicationsets/utils"
@@ -135,7 +135,7 @@ func TestValidateDestination(t *testing.T) {
 		kubeclientset := fake.NewSimpleClientset()
 
 		kubeclientset.PrependReactor("list", "*", func(action kubetesting.Action) (handled bool, ret runtime.Object, err error) {
-			return true, nil, errors.New("an error occurred")
+			return true, nil, fmt.Errorf("an error occurred")
 		})
 
 		err := ValidateDestination(context.Background(), &dest, kubeclientset, utils.ArgoCDNamespace)

pkg/utils/map_test.go

@@ -1,7 +1,7 @@
 package utils
 
 import (
-	"errors"
+	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -27,7 +27,7 @@ func TestCombineStringMaps(t *testing.T) {
 			left:        map[string]string{"foo": "bar", "a": "fail"},
 			right:       map[string]string{"a": "b", "c": "d"},
 			expected:    map[string]string{"a": "b", "foo": "bar"},
-			expectedErr: errors.New("found duplicate key a with different value, a: fail ,b: b"),
+			expectedErr: fmt.Errorf("found duplicate key a with different value, a: fail ,b: b"),
 		},
 		{
 			name:        "pass if keys & values are the same",

pkg/utils/util.go

@@ -11,7 +11,6 @@ import (
 
 	argoprojiov1alpha1 "github.com/argoproj/applicationset/api/v1alpha1"
 	argov1alpha1 "github.com/argoproj/argo-cd/v2/pkg/apis/application/v1alpha1"
-	"github.com/pkg/errors"
 	log "github.com/sirupsen/logrus"
 	"github.com/valyala/fasttemplate"
 )
@@ -78,7 +77,7 @@ func (r *Render) replace(fstTmpl *fasttemplate.Template, replaceMap map[string]s
 				// just write the same string back
 				return w.Write([]byte(fmt.Sprintf("{{%s}}", tag)))
 			}
-			unresolvedErr = errors.Errorf("failed to resolve {{%s}}", tag)
+			unresolvedErr = fmt.Errorf("failed to resolve {{%s}}", tag)
 			return 0, nil
 		}
 		// The following escapes any special characters (e.g. newlines, tabs, etc...)