cmd/app: remove dependency on deprecated github.com/pkg/errors

Signed-off-by: Koichi Shiraishi <zchee.io@gmail.com>

cmd/app/http.go

@@ -17,14 +17,14 @@ package app
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"net/http"
 	"strconv"
 	"strings"
 	"time"
 
 	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
-	"github.com/pkg/errors"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/sigstore/fulcio/pkg/api"
 	gw "github.com/sigstore/fulcio/pkg/generated/protobuf"

cmd/app/serve.go

@@ -27,7 +27,6 @@ import (
 
 	ctclient "github.com/google/certificate-transparency-go/client"
 	"github.com/google/certificate-transparency-go/jsonclient"
-	"github.com/pkg/errors"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	certauth "github.com/sigstore/fulcio/pkg/ca"
@@ -253,11 +252,11 @@ func runServeCmd(cmd *cobra.Command, args []string) {
 func checkServeCmdConfigFile() error {
 	if serveCmdConfigFilePath != "" {
 		if _, err := os.Stat(serveCmdConfigFilePath); err != nil {
-			return errors.Wrap(err, "unable to stat config file provided")
+			return fmt.Errorf("unable to stat config file provided: %w", err)
 		}
 		abspath, err := filepath.Abs(serveCmdConfigFilePath)
 		if err != nil {
-			return errors.Wrap(err, "unable to determine absolute path of config file provided")
+			return fmt.Errorf("unable to determine absolute path of config file provided: %w", err)
 		}
 		extWithDot := filepath.Ext(abspath)
 		ext := strings.TrimPrefix(extWithDot, ".")
@@ -275,7 +274,7 @@ func checkServeCmdConfigFile() error {
 		viper.SetConfigType(ext)
 		viper.AddConfigPath(filepath.Dir(serveCmdConfigFilePath))
 		if err := viper.ReadInConfig(); err != nil {
-			return errors.Wrap(err, "unable to parse config file provided")
+			return fmt.Errorf("unable to parse config file provided: %w", err)
 		}
 	}
 	return nil

cmd/app/version.go

@@ -18,7 +18,6 @@ package app
 import (
 	"fmt"
 
-	"github.com/pkg/errors"
 	"github.com/sigstore/fulcio/pkg/api"
 	"github.com/spf13/cobra"
 )
@@ -50,7 +49,7 @@ func runVersion(opts *versionOptions) error {
 	if opts.json {
 		j, err := v.JSONString()
 		if err != nil {
-			return errors.Wrap(err, "unable to generate JSON from version info")
+			return fmt.Errorf("unable to generate JSON from version info: %w", err)
 		}
 		res = j
 	}