Improve error messages, esp. when the server is running

* Add file context to minifier errors when publishing
* Misc fixes (see issues)
* Allow custom server error template in layouts/server/error.html

To get to this, this commit also cleans up and simplifies the code surrounding errors and files. This also removes the usage of `github.com/pkg/errors`, mostly because of https://github.com/pkg/errors/issues/223 -- but also because most of this is now built-in to Go.

Fixes #9852
Fixes #9857
Fixes #9863

cache/filecache/filecache_config.go

@@ -14,6 +14,7 @@
 package filecache
 
 import (
+	"fmt"
 	"path"
 	"path/filepath"
 	"strings"
@@ -25,8 +26,9 @@ import (
 
 	"github.com/gohugoio/hugo/helpers"
 
+	"errors"
+
 	"github.com/mitchellh/mapstructure"
-	"github.com/pkg/errors"
 	"github.com/spf13/afero"
 )
 
@@ -153,7 +155,7 @@ func DecodeConfig(fs afero.Fs, cfg config.Provider) (Configs, error) {
 		}
 
 		if err := decoder.Decode(v); err != nil {
-			return nil, errors.Wrap(err, "failed to decode filecache config")
+			return nil, fmt.Errorf("failed to decode filecache config: %w", err)
 		}
 
 		if cc.Dir == "" {
@@ -162,7 +164,7 @@ func DecodeConfig(fs afero.Fs, cfg config.Provider) (Configs, error) {
 
 		name := strings.ToLower(k)
 		if !valid[name] {
-			return nil, errors.Errorf("%q is not a valid cache name", name)
+			return nil, fmt.Errorf("%q is not a valid cache name", name)
 		}
 
 		c[name] = cc
@@ -197,12 +199,12 @@ func DecodeConfig(fs afero.Fs, cfg config.Provider) (Configs, error) {
 
 		if !v.isResourceDir {
 			if isOsFs && !filepath.IsAbs(v.Dir) {
-				return c, errors.Errorf("%q must resolve to an absolute directory", v.Dir)
+				return c, fmt.Errorf("%q must resolve to an absolute directory", v.Dir)
 			}
 
 			// Avoid cache in root, e.g. / (Unix) or c:\ (Windows)
 			if len(strings.TrimPrefix(v.Dir, filepath.VolumeName(v.Dir))) == 1 {
-				return c, errors.Errorf("%q is a root folder and not allowed as cache dir", v.Dir)
+				return c, fmt.Errorf("%q is a root folder and not allowed as cache dir", v.Dir)
 			}
 		}
 
@@ -242,5 +244,5 @@ func resolveDirPlaceholder(fs afero.Fs, cfg config.Provider, placeholder string)
 		return filepath.Base(workingDir), false, nil
 	}
 
-	return "", false, errors.Errorf("%q is not a valid placeholder (valid values are :cacheDir or :resourceDir)", placeholder)
+	return "", false, fmt.Errorf("%q is not a valid placeholder (valid values are :cacheDir or :resourceDir)", placeholder)
 }

cache/filecache/filecache_pruner.go

@@ -14,12 +14,12 @@
 package filecache
 
 import (
+	"fmt"
 	"io"
 	"os"
 
 	"github.com/gohugoio/hugo/hugofs"
 
-	"github.com/pkg/errors"
 	"github.com/spf13/afero"
 )
 
@@ -39,7 +39,7 @@ func (c Caches) Prune() (int, error) {
 			if os.IsNotExist(err) {
 				continue
 			}
-			return counter, errors.Wrapf(err, "failed to prune cache %q", k)
+			return counter, fmt.Errorf("failed to prune cache %q: %w", k, err)
 		}
 
 	}

commands/commandeer.go

@@ -14,7 +14,6 @@
 package commands
 
 import (
-	"bytes"
 	"errors"
 	"io/ioutil"
 	"net"
@@ -141,19 +140,11 @@ func (c *commandeer) getErrorWithContext() any {
 
 	m := make(map[string]any)
 
-	m["Error"] = errors.New(removeErrorPrefixFromLog(c.logger.Errors()))
+	//xwm["Error"] = errors.New(cleanErrorLog(removeErrorPrefixFromLog(c.logger.Errors())))
+	m["Error"] = errors.New(cleanErrorLog(removeErrorPrefixFromLog(c.logger.Errors())))
 	m["Version"] = hugo.BuildVersionString()
-
+	ferrors := herrors.UnwrapFileErrorsWithErrorContext(c.buildErr)
-	fe := herrors.UnwrapErrorWithFileContext(c.buildErr)
+	m["Files"] = ferrors
-	if fe != nil {
-		m["File"] = fe
-	}
-
-	if c.h.verbose {
-		var b bytes.Buffer
-		herrors.FprintStackTraceFromErr(&b, c.buildErr)
-		m["StackTrace"] = b.String()
-	}
 
 	return m
 }

commands/convert.go

@@ -31,8 +31,6 @@ import (
 	"github.com/gohugoio/hugo/parser"
 	"github.com/gohugoio/hugo/parser/metadecoders"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/hugolib"
 
 	"github.com/spf13/cobra"
@@ -193,7 +191,7 @@ func (cc *convertCmd) convertAndSavePage(p page.Page, site *hugolib.Site, target
 
 	fs := hugofs.Os
 	if err := helpers.WriteToDisk(newFilename, &newContent, fs); err != nil {
-		return errors.Wrapf(err, "Failed to save file %q:", newFilename)
+		return fmt.Errorf("Failed to save file %q:: %w", newFilename, err)
 	}
 
 	return nil

commands/hugo.go

@@ -39,9 +39,6 @@ import (
 
 	"github.com/gohugoio/hugo/resources/page"
 
-	"github.com/pkg/errors"
-
-	"github.com/gohugoio/hugo/common/herrors"
 	"github.com/gohugoio/hugo/common/hugo"
 	"github.com/gohugoio/hugo/common/loggers"
 	"github.com/gohugoio/hugo/common/terminal"
@@ -300,14 +297,14 @@ func (c *commandeer) fullBuild(noBuildLock bool) error {
 	copyStaticFunc := func() error {
 		cnt, err := c.copyStatic()
 		if err != nil {
-			return errors.Wrap(err, "Error copying static files")
+			return fmt.Errorf("Error copying static files: %w", err)
 		}
 		langCount = cnt
 		return nil
 	}
 	buildSitesFunc := func() error {
 		if err := c.buildSites(noBuildLock); err != nil {
-			return errors.Wrap(err, "Error building site")
+			return fmt.Errorf("Error building site: %w", err)
 		}
 		return nil
 	}
@@ -354,10 +351,10 @@ func (c *commandeer) initCPUProfile() (func(), error) {
 
 	f, err := os.Create(c.h.cpuprofile)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to create CPU profile")
+		return nil, fmt.Errorf("failed to create CPU profile: %w", err)
 	}
 	if err := pprof.StartCPUProfile(f); err != nil {
-		return nil, errors.Wrap(err, "failed to start CPU profile")
+		return nil, fmt.Errorf("failed to start CPU profile: %w", err)
 	}
 	return func() {
 		pprof.StopCPUProfile()
@@ -388,11 +385,11 @@ func (c *commandeer) initTraceProfile() (func(), error) {
 
 	f, err := os.Create(c.h.traceprofile)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to create trace file")
+		return nil, fmt.Errorf("failed to create trace file: %w", err)
 	}
 
 	if err := trace.Start(f); err != nil {
-		return nil, errors.Wrap(err, "failed to start trace")
+		return nil, fmt.Errorf("failed to start trace: %w", err)
 	}
 
 	return func() {
@@ -735,9 +732,7 @@ func (c *commandeer) handleBuildErr(err error, msg string) {
 
 	c.logger.Errorln(msg + ":\n")
 	c.logger.Errorln(helpers.FirstUpper(err.Error()))
-	if !c.h.quiet && c.h.verbose {
+
-		herrors.PrintStackTraceFromErr(err)
-	}
 }
 
 func (c *commandeer) rebuildSites(events []fsnotify.Event) error {

commands/new_site.go

@@ -16,14 +16,13 @@ package commands
 import (
 	"bytes"
 	"errors"
+	"fmt"
 	"path/filepath"
 	"strings"
 
 	"github.com/gohugoio/hugo/config"
 	"github.com/gohugoio/hugo/parser/metadecoders"
 
-	_errors "github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/create"
 	"github.com/gohugoio/hugo/helpers"
 	"github.com/gohugoio/hugo/hugofs"
@@ -94,7 +93,7 @@ func (n *newSiteCmd) doNewSite(fs *hugofs.Fs, basepath string, force bool) error
 
 	for _, dir := range dirs {
 		if err := fs.Source.MkdirAll(dir, 0777); err != nil {
-			return _errors.Wrap(err, "Failed to create dir")
+			return fmt.Errorf("Failed to create dir: %w", err)
 		}
 	}
 

commands/server.go

@@ -36,8 +36,6 @@ import (
 	"github.com/gohugoio/hugo/common/paths"
 	"golang.org/x/sync/errgroup"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/livereload"
 
 	"github.com/gohugoio/hugo/config"
@@ -366,7 +364,7 @@ func (f *fileServer) createEndpoint(i int) (*http.ServeMux, net.Listener, string
 	// We're only interested in the path
 	u, err := url.Parse(baseURL)
 	if err != nil {
-		return nil, nil, "", "", errors.Wrap(err, "Invalid baseURL")
+		return nil, nil, "", "", fmt.Errorf("Invalid baseURL: %w", err)
 	}
 
 	decorate := func(h http.Handler) http.Handler {
@@ -480,6 +478,21 @@ var logErrorRe = regexp.MustCompile(`(?s)ERROR \d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{
 func removeErrorPrefixFromLog(content string) string {
 	return logErrorRe.ReplaceAllLiteralString(content, "")
 }
+func cleanErrorLog(content string) string {
+	content = strings.ReplaceAll(content, "Rebuild failed:\n", "")
+	content = strings.ReplaceAll(content, "\n", "")
+	seen := make(map[string]bool)
+	parts := strings.Split(content, ": ")
+	keep := make([]string, 0, len(parts))
+	for _, part := range parts {
+		if seen[part] {
+			continue
+		}
+		seen[part] = true
+		keep = append(keep, part)
+	}
+	return strings.Join(keep, ": ")
+}
 
 func (c *commandeer) serve(s *serverCmd) error {
 	isMultiHost := c.hugo().IsMultihost()
@@ -500,17 +513,16 @@ func (c *commandeer) serve(s *serverCmd) error {
 		roots = []string{""}
 	}
 
-	templ, err := c.hugo().TextTmpl().Parse("__default_server_error", buildErrorTemplate)
-	if err != nil {
-		return err
-	}
-
 	srv := &fileServer{
 		baseURLs: baseURLs,
 		roots:    roots,
 		c:        c,
 		s:        s,
 		errorTemplate: func(ctx any) (io.Reader, error) {
+			templ, found := c.hugo().Tmpl().Lookup("server/error.html")
+			if !found {
+				panic("template server/error.html not found")
+			}
 			b := &bytes.Buffer{}
 			err := c.hugo().Tmpl().Execute(templ, b, ctx)
 			return b, err
@@ -627,7 +639,7 @@ func (sc *serverCmd) fixURL(cfg config.Provider, s string, port int) (string, er
 		if strings.Contains(u.Host, ":") {
 			u.Host, _, err = net.SplitHostPort(u.Host)
 			if err != nil {
-				return "", errors.Wrap(err, "Failed to split baseURL hostpost")
+				return "", fmt.Errorf("Failed to split baseURL hostpost: %w", err)
 			}
 		}
 		u.Host += fmt.Sprintf(":%d", port)

commands/server_errors.go

@@ -22,67 +22,6 @@ import (
 	"github.com/gohugoio/hugo/transform/livereloadinject"
 )
 
-var buildErrorTemplate = `<!doctype html>
-<html class="no-js" lang="">
-	<head>
-		<meta charset="utf-8">
-		<title>Hugo Server: Error</title>
-		<style type="text/css">
-		body {
-			font-family: "Muli",avenir, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
-			font-size: 16px;
-			background-color: #2f1e2e;
-		}
-		main {
-			margin: auto;
-			width: 95%;
-			padding: 1rem;
-		}		
-		.version {
-			color: #ccc;
-			padding: 1rem 0;
-		}
-		.stack {
-			margin-top: 4rem;
-		}
-		pre {
-			white-space: pre-wrap;      
-			white-space: -moz-pre-wrap;  
-			white-space: -pre-wrap;     
-			white-space: -o-pre-wrap;    
-			word-wrap: break-word;     
-		}
-		.highlight {
-			overflow-x: auto;
-			margin-bottom: 1rem;
-		}
-		a {
-			color: #0594cb;
-			text-decoration: none;
-		}
-		a:hover {
-			color: #ccc;
-		}
-		</style>
-	</head>
-	<body>
-		<main>
-			{{ highlight .Error "apl" "linenos=false,noclasses=true,style=paraiso-dark" }}
-			{{ with .File }}
-			{{ $params := printf "noclasses=true,style=paraiso-dark,linenos=table,hl_lines=%d,linenostart=%d" (add .LinesPos 1) (sub .Position.LineNumber .LinesPos) }}
-			{{ $lexer := .ChromaLexer | default "go-html-template" }}
-			{{  highlight (delimit .Lines "\n") $lexer $params }}
-			{{ end }}
-			{{ with .StackTrace }}
-			{{ highlight . "apl" "noclasses=true,style=paraiso-dark" }}
-			{{ end }}
-			<p class="version">{{ .Version }}</p>
-			<a href="">Reload Page</a>
-		</main>
-</body>
-</html>
-`
-
 func injectLiveReloadScript(src io.Reader, baseURL url.URL) string {
 	var b bytes.Buffer
 	chain := transform.Chain{livereloadinject.New(baseURL)}

common/herrors/error_locator.go

@@ -1,4 +1,4 @@
-// Copyright 2018 The Hugo Authors. All rights reserved.
+// Copyright 2022 The Hugo Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -21,8 +21,6 @@ import (
 	"strings"
 
 	"github.com/gohugoio/hugo/common/text"
-
-	"github.com/spf13/afero"
 )
 
 // LineMatcher contains the elements used to match an error to a line
@@ -43,8 +41,6 @@ var SimpleLineMatcher = func(m LineMatcher) bool {
 	return m.Position.LineNumber == m.LineNumber
 }
 
-var _ text.Positioner = ErrorContext{}
-
 // ErrorContext contains contextual information about an error. This will
 // typically be the lines surrounding some problem in a file.
 type ErrorContext struct {
@@ -56,125 +52,11 @@ type ErrorContext struct {
 	// The position of the error in the Lines above. 0 based.
 	LinesPos int
 
-	position text.Position
-
 	// The lexer to use for syntax highlighting.
 	// https://gohugo.io/content-management/syntax-highlighting/#list-of-chroma-highlighting-languages
 	ChromaLexer string
 }
 
-// Position returns the text position of this error.
-func (e ErrorContext) Position() text.Position {
-	return e.position
-}
-
-var _ causer = (*ErrorWithFileContext)(nil)
-
-// ErrorWithFileContext is an error with some additional file context related
-// to that error.
-type ErrorWithFileContext struct {
-	cause error
-	ErrorContext
-}
-
-func (e *ErrorWithFileContext) Error() string {
-	pos := e.Position()
-	if pos.IsValid() {
-		return pos.String() + ": " + e.cause.Error()
-	}
-	return e.cause.Error()
-}
-
-func (e *ErrorWithFileContext) Cause() error {
-	return e.cause
-}
-
-// WithFileContextForFile will try to add a file context with lines matching the given matcher.
-// If no match could be found, the original error is returned with false as the second return value.
-func WithFileContextForFile(e error, realFilename, filename string, fs afero.Fs, matcher LineMatcherFn) (error, bool) {
-	f, err := fs.Open(filename)
-	if err != nil {
-		return e, false
-	}
-	defer f.Close()
-	return WithFileContext(e, realFilename, f, matcher)
-}
-
-// WithFileContextForFileDefault tries to add file context using the default line matcher.
-func WithFileContextForFileDefault(err error, filename string, fs afero.Fs) error {
-	err, _ = WithFileContextForFile(
-		err,
-		filename,
-		filename,
-		fs,
-		SimpleLineMatcher)
-	return err
-}
-
-// WithFileContextForFile will try to add a file context with lines matching the given matcher.
-// If no match could be found, the original error is returned with false as the second return value.
-func WithFileContext(e error, realFilename string, r io.Reader, matcher LineMatcherFn) (error, bool) {
-	if e == nil {
-		panic("error missing")
-	}
-	le := UnwrapFileError(e)
-
-	if le == nil {
-		var ok bool
-		if le, ok = ToFileError("", e).(FileError); !ok {
-			return e, false
-		}
-	}
-
-	var errCtx ErrorContext
-
-	posle := le.Position()
-
-	if posle.Offset != -1 {
-		errCtx = locateError(r, le, func(m LineMatcher) bool {
-			if posle.Offset >= m.Offset && posle.Offset < m.Offset+len(m.Line) {
-				lno := posle.LineNumber - m.Position.LineNumber + m.LineNumber
-				m.Position = text.Position{LineNumber: lno}
-			}
-			return matcher(m)
-		})
-	} else {
-		errCtx = locateError(r, le, matcher)
-	}
-
-	pos := &errCtx.position
-
-	if pos.LineNumber == -1 {
-		return e, false
-	}
-
-	pos.Filename = realFilename
-
-	if le.Type() != "" {
-		errCtx.ChromaLexer = chromaLexerFromType(le.Type())
-	} else {
-		errCtx.ChromaLexer = chromaLexerFromFilename(realFilename)
-	}
-
-	return &ErrorWithFileContext{cause: e, ErrorContext: errCtx}, true
-}
-
-// UnwrapErrorWithFileContext tries to unwrap an ErrorWithFileContext from err.
-// It returns nil if this is not possible.
-func UnwrapErrorWithFileContext(err error) *ErrorWithFileContext {
-	for err != nil {
-		switch v := err.(type) {
-		case *ErrorWithFileContext:
-			return v
-		case causer:
-			err = v.Cause()
-		default:
-			return nil
-		}
-	}
-	return nil
-}
-
 func chromaLexerFromType(fileType string) string {
 	switch fileType {
 	case "html", "htm":
@@ -196,23 +78,23 @@ func chromaLexerFromFilename(filename string) string {
 	return chromaLexerFromType(ext)
 }
 
-func locateErrorInString(src string, matcher LineMatcherFn) ErrorContext {
+func locateErrorInString(src string, matcher LineMatcherFn) (*ErrorContext, text.Position) {
 	return locateError(strings.NewReader(src), &fileError{}, matcher)
 }
 
-func locateError(r io.Reader, le FileError, matches LineMatcherFn) ErrorContext {
+func locateError(r io.Reader, le FileError, matches LineMatcherFn) (*ErrorContext, text.Position) {
 	if le == nil {
 		panic("must provide an error")
 	}
 
-	errCtx := ErrorContext{position: text.Position{LineNumber: -1, ColumnNumber: 1, Offset: -1}, LinesPos: -1}
+	errCtx := &ErrorContext{LinesPos: -1}
+	pos := text.Position{LineNumber: -1, ColumnNumber: 1, Offset: -1}
 
 	b, err := ioutil.ReadAll(r)
 	if err != nil {
-		return errCtx
+		return errCtx, pos
 	}
 
-	pos := &errCtx.position
 	lepos := le.Position()
 
 	lines := strings.Split(string(b), "\n")
@@ -262,5 +144,5 @@ func locateError(r io.Reader, le FileError, matches LineMatcherFn) ErrorContext
 
 	}
 
-	return errCtx
+	return errCtx, pos
 }

common/herrors/error_locator_test.go

@@ -1,4 +1,4 @@
-// Copyright 2018 The Hugo Authors. All rights reserved.
+// Copyright 2022 The Hugo Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -38,44 +38,48 @@ LINE 7
 LINE 8
 `
 
-	location := locateErrorInString(lines, lineMatcher)
+	location, pos := locateErrorInString(lines, lineMatcher)
 	c.Assert(location.Lines, qt.DeepEquals, []string{"LINE 3", "LINE 4", "This is THEONE", "LINE 6", "LINE 7"})
 
-	pos := location.Position()
 	c.Assert(pos.LineNumber, qt.Equals, 5)
 	c.Assert(location.LinesPos, qt.Equals, 2)
 
-	c.Assert(locateErrorInString(`This is THEONE`, lineMatcher).Lines, qt.DeepEquals, []string{"This is THEONE"})
+	locate := func(s string, m LineMatcherFn) *ErrorContext {
+		ctx, _ := locateErrorInString(s, m)
+		return ctx
+	}
 
-	location = locateErrorInString(`L1
+	c.Assert(locate(`This is THEONE`, lineMatcher).Lines, qt.DeepEquals, []string{"This is THEONE"})
+
+	location, pos = locateErrorInString(`L1
 This is THEONE
 L2
 `, lineMatcher)
-	c.Assert(location.Position().LineNumber, qt.Equals, 2)
+	c.Assert(pos.LineNumber, qt.Equals, 2)
 	c.Assert(location.LinesPos, qt.Equals, 1)
 	c.Assert(location.Lines, qt.DeepEquals, []string{"L1", "This is THEONE", "L2", ""})
 
-	location = locateErrorInString(`This is THEONE
+	location = locate(`This is THEONE
 L2
 `, lineMatcher)
 	c.Assert(location.LinesPos, qt.Equals, 0)
 	c.Assert(location.Lines, qt.DeepEquals, []string{"This is THEONE", "L2", ""})
 
-	location = locateErrorInString(`L1
+	location = locate(`L1
 This THEONE
 `, lineMatcher)
 	c.Assert(location.Lines, qt.DeepEquals, []string{"L1", "This THEONE", ""})
 	c.Assert(location.LinesPos, qt.Equals, 1)
 
-	location = locateErrorInString(`L1
+	location = locate(`L1
 L2
 This THEONE
 `, lineMatcher)
 	c.Assert(location.Lines, qt.DeepEquals, []string{"L1", "L2", "This THEONE", ""})
 	c.Assert(location.LinesPos, qt.Equals, 2)
 
-	location = locateErrorInString("NO MATCH", lineMatcher)
+	location, pos = locateErrorInString("NO MATCH", lineMatcher)
-	c.Assert(location.Position().LineNumber, qt.Equals, -1)
+	c.Assert(pos.LineNumber, qt.Equals, -1)
 	c.Assert(location.LinesPos, qt.Equals, -1)
 	c.Assert(len(location.Lines), qt.Equals, 0)
 
@@ -83,7 +87,7 @@ This THEONE
 		return m.LineNumber == 6
 	}
 
-	location = locateErrorInString(`A
+	location, pos = locateErrorInString(`A
 B
 C
 D
@@ -95,7 +99,7 @@ I
 J`, lineMatcher)
 
 	c.Assert(location.Lines, qt.DeepEquals, []string{"D", "E", "F", "G", "H"})
-	c.Assert(location.Position().LineNumber, qt.Equals, 6)
+	c.Assert(pos.LineNumber, qt.Equals, 6)
 	c.Assert(location.LinesPos, qt.Equals, 2)
 
 	// Test match EOF
@@ -103,26 +107,26 @@ J`, lineMatcher)
 		return m.LineNumber == 4
 	}
 
-	location = locateErrorInString(`A
+	location, pos = locateErrorInString(`A
 B
 C
 `, lineMatcher)
 
 	c.Assert(location.Lines, qt.DeepEquals, []string{"B", "C", ""})
-	c.Assert(location.Position().LineNumber, qt.Equals, 4)
+	c.Assert(pos.LineNumber, qt.Equals, 4)
 	c.Assert(location.LinesPos, qt.Equals, 2)
 
 	offsetMatcher := func(m LineMatcher) bool {
 		return m.Offset == 1
 	}
 
-	location = locateErrorInString(`A
+	location, pos = locateErrorInString(`A
 B
 C
 D
 E`, offsetMatcher)
 
 	c.Assert(location.Lines, qt.DeepEquals, []string{"A", "B", "C", "D"})
-	c.Assert(location.Position().LineNumber, qt.Equals, 2)
+	c.Assert(pos.LineNumber, qt.Equals, 2)
 	c.Assert(location.LinesPos, qt.Equals, 1)
 }

common/herrors/errors.go

@@ -19,37 +19,11 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"os"
 	"runtime"
 	"runtime/debug"
 	"strconv"
-
-	_errors "github.com/pkg/errors"
 )
 
-// As defined in https://godoc.org/github.com/pkg/errors
-type causer interface {
-	Cause() error
-}
-
-type stackTracer interface {
-	StackTrace() _errors.StackTrace
-}
-
-// PrintStackTraceFromErr prints the error's stack trace to stdoud.
-func PrintStackTraceFromErr(err error) {
-	FprintStackTraceFromErr(os.Stdout, err)
-}
-
-// FprintStackTraceFromErr prints the error's stack trace to w.
-func FprintStackTraceFromErr(w io.Writer, err error) {
-	if err, ok := err.(stackTracer); ok {
-		for _, f := range err.StackTrace() {
-			fmt.Fprintf(w, "%+s:%d\n", f, f)
-		}
-	}
-}
-
 // PrintStackTrace prints the current stacktrace to w.
 func PrintStackTrace(w io.Writer) {
 	buf := make([]byte, 1<<16)

common/herrors/file_error.go

@@ -1,11 +1,11 @@
-// Copyright 2018 The Hugo Authors. All rights reserved.
+// Copyright 2022 The Hugo Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 // http://www.apache.org/licenses/LICENSE-2.0
 //
-// Unless required by applicable law or agreed to in writing, software
+// Unless required by applicable lfmtaw or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
@@ -15,59 +15,217 @@ package herrors
 
 import (
 	"encoding/json"
+	"fmt"
+	"io"
+	"path/filepath"
 
+	"github.com/gohugoio/hugo/common/paths"
 	"github.com/gohugoio/hugo/common/text"
+	"github.com/pelletier/go-toml/v2"
+	"github.com/spf13/afero"
+	"github.com/tdewolff/parse/v2"
 
-	"github.com/pkg/errors"
+	"errors"
 )
 
-var _ causer = (*fileError)(nil)
-
 // FileError represents an error when handling a file: Parsing a config file,
 // execute a template etc.
 type FileError interface {
 	error
 
+	// ErroContext holds some context information about the error.
+	ErrorContext() *ErrorContext
+
 	text.Positioner
 
-	// A string identifying the type of file, e.g. JSON, TOML, markdown etc.
+	// UpdatePosition updates the position of the error.
-	Type() string
+	UpdatePosition(pos text.Position) FileError
+
+	// UpdateContent updates the error with a new ErrorContext from the content of the file.
+	UpdateContent(r io.Reader, linematcher LineMatcherFn) FileError
 }
 
-var _ FileError = (*fileError)(nil)
+// Unwrapper can unwrap errors created with fmt.Errorf.
+type Unwrapper interface {
+	Unwrap() error
+}
+
+var (
+	_ FileError = (*fileError)(nil)
+	_ Unwrapper = (*fileError)(nil)
+)
+
+func (fe *fileError) UpdatePosition(pos text.Position) FileError {
+	oldFilename := fe.Position().Filename
+	if pos.Filename != "" && fe.fileType == "" {
+		_, fe.fileType = paths.FileAndExtNoDelimiter(filepath.Clean(pos.Filename))
+	}
+	if pos.Filename == "" {
+		pos.Filename = oldFilename
+	}
+	fe.position = pos
+	return fe
+}
+
+func (fe *fileError) UpdateContent(r io.Reader, linematcher LineMatcherFn) FileError {
+	if linematcher == nil {
+		linematcher = SimpleLineMatcher
+	}
+
+	var (
+		contentPos   text.Position
+		posle        = fe.position
+		errorContext *ErrorContext
+	)
+
+	if posle.LineNumber <= 1 && posle.Offset > 0 {
+		// Try to locate the line number from the content if offset is set.
+		errorContext, contentPos = locateError(r, fe, func(m LineMatcher) bool {
+			if posle.Offset >= m.Offset && posle.Offset < m.Offset+len(m.Line) {
+				lno := posle.LineNumber - m.Position.LineNumber + m.LineNumber
+				m.Position = text.Position{LineNumber: lno}
+				return linematcher(m)
+			}
+			return false
+		})
+	} else {
+		errorContext, contentPos = locateError(r, fe, linematcher)
+	}
+
+	if errorContext.ChromaLexer == "" {
+		if fe.fileType != "" {
+			errorContext.ChromaLexer = chromaLexerFromType(fe.fileType)
+		} else {
+			errorContext.ChromaLexer = chromaLexerFromFilename(fe.Position().Filename)
+		}
+	}
+
+	fe.errorContext = errorContext
+
+	if contentPos.LineNumber > 0 {
+		fe.position.LineNumber = contentPos.LineNumber
+	}
+
+	return fe
+
+}
 
 type fileError struct {
-	position text.Position
+	position     text.Position
+	errorContext *ErrorContext
 
 	fileType string
 
 	cause error
 }
 
+type fileErrorWithErrorContext struct {
+	*fileError
+}
+
+func (e *fileError) ErrorContext() *ErrorContext {
+	return e.errorContext
+}
+
 // Position returns the text position of this error.
 func (e fileError) Position() text.Position {
 	return e.position
 }
 
-func (e *fileError) Type() string {
-	return e.fileType
-}
-
 func (e *fileError) Error() string {
-	if e.cause == nil {
+	return fmt.Sprintf("%s: %s", e.position, e.cause)
-		return ""
+}
+
+func (e *fileError) Unwrap() error {
+	return e.cause
+}
+
+// NewFileError creates a new FileError that wraps err.
+// The value for name should identify the file, the best
+// being the full filename to the file on disk.
+func NewFileError(name string, err error) FileError {
+	if err == nil {
+		panic("err is nil")
 	}
-	return e.cause.Error()
-}
 
-func (f *fileError) Cause() error {
+	// Filetype is used to determine the Chroma lexer to use.
-	return f.cause
+	fileType, pos := extractFileTypePos(err)
-}
+	pos.Filename = name
+	if fileType == "" {
+		_, fileType = paths.FileAndExtNoDelimiter(filepath.Clean(name))
+	}
+
+	if pos.LineNumber < 0 {
+		panic(fmt.Sprintf("invalid line number: %d", pos.LineNumber))
+	}
 
-// NewFileError creates a new FileError.
-func NewFileError(fileType string, offset, lineNumber, columnNumber int, err error) FileError {
-	pos := text.Position{Offset: offset, LineNumber: lineNumber, ColumnNumber: columnNumber}
 	return &fileError{cause: err, fileType: fileType, position: pos}
+
+}
+
+// NewFileErrorFromFile is a convenience method to create a new FileError from a file.
+func NewFileErrorFromFile(err error, filename, realFilename string, fs afero.Fs, linematcher LineMatcherFn) FileError {
+	if err == nil {
+		panic("err is nil")
+	}
+	if linematcher == nil {
+		linematcher = SimpleLineMatcher
+	}
+	f, err2 := fs.Open(filename)
+	if err2 != nil {
+		return NewFileError(realFilename, err)
+	}
+	defer f.Close()
+	return NewFileError(realFilename, err).UpdateContent(f, linematcher)
+}
+
+// Cause returns the underlying error or itself if it does not implement Unwrap.
+func Cause(err error) error {
+	if u := errors.Unwrap(err); u != nil {
+		return u
+	}
+	return err
+}
+
+func extractFileTypePos(err error) (string, text.Position) {
+	err = Cause(err)
+	var fileType string
+
+	// Fall back to line/col 1:1 if we cannot find any better information.
+	pos := text.Position{
+		Offset:       -1,
+		LineNumber:   1,
+		ColumnNumber: 1,
+	}
+
+	// JSON errors.
+	offset, typ := extractOffsetAndType(err)
+	if fileType == "" {
+		fileType = typ
+	}
+
+	if offset >= 0 {
+		pos.Offset = offset
+	}
+
+	// The error type from the minifier contains line number and column number.
+	if line, col := exctractLineNumberAndColumnNumber(err); line >= 0 {
+		pos.LineNumber = line
+		pos.ColumnNumber = col
+		return fileType, pos
+	}
+
+	// Look in the error message for the line number.
+	for _, handle := range lineNumberExtractors {
+		lno, col := handle(err)
+		if lno > 0 {
+			pos.ColumnNumber = col
+			pos.LineNumber = lno
+			break
+		}
+	}
+
+	return fileType, pos
 }
 
 // UnwrapFileError tries to unwrap a FileError from err.
@@ -77,49 +235,26 @@ func UnwrapFileError(err error) FileError {
 		switch v := err.(type) {
 		case FileError:
 			return v
-		case causer:
-			err = v.Cause()
 		default:
-			return nil
+			err = errors.Unwrap(err)
 		}
 	}
 	return nil
 }
 
-// ToFileErrorWithOffset will return a new FileError with a line number
+// UnwrapFileErrorsWithErrorContext tries to unwrap all FileError in err that has an ErrorContext.
-// with the given offset from the original.
+func UnwrapFileErrorsWithErrorContext(err error) []FileError {
-func ToFileErrorWithOffset(fe FileError, offset int) FileError {
+	var errs []FileError
-	pos := fe.Position()
+	for err != nil {
-	return ToFileErrorWithLineNumber(fe, pos.LineNumber+offset)
+		if v, ok := err.(FileError); ok && v.ErrorContext() != nil {
-}
+			errs = append(errs, v)
-
-// ToFileErrorWithOffset will return a new FileError with the given line number.
-func ToFileErrorWithLineNumber(fe FileError, lineNumber int) FileError {
-	pos := fe.Position()
-	pos.LineNumber = lineNumber
-	return &fileError{cause: fe, fileType: fe.Type(), position: pos}
-}
-
-// ToFileError will convert the given error to an error supporting
-// the FileError interface.
-func ToFileError(fileType string, err error) FileError {
-	for _, handle := range lineNumberExtractors {
-		lno, col := handle(err)
-		offset, typ := extractOffsetAndType(err)
-		if fileType == "" {
-			fileType = typ
-		}
-
-		if lno > 0 || offset != -1 {
-			return NewFileError(fileType, offset, lno, col, err)
 		}
+		err = errors.Unwrap(err)
 	}
-	// Fall back to the pointing to line number 1.
+	return errs
-	return NewFileError(fileType, -1, 1, 1, err)
 }
 
 func extractOffsetAndType(e error) (int, string) {
-	e = errors.Cause(e)
 	switch v := e.(type) {
 	case *json.UnmarshalTypeError:
 		return int(v.Offset), "json"
@@ -129,3 +264,15 @@ func extractOffsetAndType(e error) (int, string) {
 		return -1, ""
 	}
 }
+
+func exctractLineNumberAndColumnNumber(e error) (int, int) {
+	switch v := e.(type) {
+	case *parse.Error:
+		return v.Line, v.Column
+	case *toml.DecodeError:
+		return v.Position()
+
+	}
+
+	return -1, -1
+}

common/herrors/file_error_test.go

@@ -1,4 +1,4 @@
-// Copyright 2018 The Hugo Authors. All rights reserved.
+// Copyright 2022 The Hugo Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -14,14 +14,44 @@
 package herrors
 
 import (
+	"fmt"
+	"strings"
 	"testing"
 
-	"github.com/pkg/errors"
+	"errors"
+
+	"github.com/gohugoio/hugo/common/text"
 
 	qt "github.com/frankban/quicktest"
 )
 
-func TestToLineNumberError(t *testing.T) {
+func TestNewFileError(t *testing.T) {
+	t.Parallel()
+
+	c := qt.New(t)
+
+	fe := NewFileError("foo.html", errors.New("bar"))
+	c.Assert(fe.Error(), qt.Equals, `"foo.html:1:1": bar`)
+
+	lines := ""
+	for i := 1; i <= 100; i++ {
+		lines += fmt.Sprintf("line %d\n", i)
+	}
+
+	fe.UpdatePosition(text.Position{LineNumber: 32, ColumnNumber: 2})
+	c.Assert(fe.Error(), qt.Equals, `"foo.html:32:2": bar`)
+	fe.UpdatePosition(text.Position{LineNumber: 0, ColumnNumber: 0, Offset: 212})
+	fe.UpdateContent(strings.NewReader(lines), SimpleLineMatcher)
+	c.Assert(fe.Error(), qt.Equals, `"foo.html:32:0": bar`)
+	errorContext := fe.ErrorContext()
+	c.Assert(errorContext, qt.IsNotNil)
+	c.Assert(errorContext.Lines, qt.DeepEquals, []string{"line 30", "line 31", "line 32", "line 33", "line 34"})
+	c.Assert(errorContext.LinesPos, qt.Equals, 2)
+	c.Assert(errorContext.ChromaLexer, qt.Equals, "go-html-template")
+
+}
+
+func TestNewFileErrorExtractFromMessage(t *testing.T) {
 	t.Parallel()
 
 	c := qt.New(t)
@@ -37,18 +67,16 @@ func TestToLineNumberError(t *testing.T) {
 		{errors.New("parse failed: template: _default/bundle-resource-meta.html:11: unexpected in operand"), 0, 11, 1},
 		{errors.New(`failed:: template: _default/bundle-resource-meta.html:2:7: executing "main" at <.Titles>`), 0, 2, 7},
 		{errors.New(`failed to load translations: (6, 7): was expecting token =, but got "g" instead`), 0, 6, 7},
+		{errors.New(`execute of template failed: template: index.html:2:5: executing "index.html" at <partial "foo.html" .>: error calling partial: "/layouts/partials/foo.html:3:6": execute of template failed: template: partials/foo.html:3:6: executing "partials/foo.html" at <.ThisDoesNotExist>: can't evaluate field ThisDoesNotExist in type *hugolib.pageStat`), 0, 2, 5},
 	} {
 
-		got := ToFileError("template", test.in)
+		got := NewFileError("test.txt", test.in)
 
 		errMsg := qt.Commentf("[%d][%T]", i, got)
-		le, ok := got.(FileError)
-		c.Assert(ok, qt.Equals, true)
 
-		c.Assert(ok, qt.Equals, true, errMsg)
+		pos := got.Position()
-		pos := le.Position()
 		c.Assert(pos.LineNumber, qt.Equals, test.lineNumber, errMsg)
 		c.Assert(pos.ColumnNumber, qt.Equals, test.columnNumber, errMsg)
-		c.Assert(errors.Cause(got), qt.Not(qt.IsNil))
+		c.Assert(errors.Unwrap(got), qt.Not(qt.IsNil))
 	}
 }

common/herrors/line_number_extractors.go

@@ -16,36 +16,22 @@ package herrors
 import (
 	"regexp"
 	"strconv"
-
-	"github.com/pkg/errors"
-
-	"github.com/pelletier/go-toml/v2"
 )
 
 var lineNumberExtractors = []lineNumberExtractor{
 	// Template/shortcode parse errors
-	newLineNumberErrHandlerFromRegexp(".*:(\\d+):(\\d*):"),
+	newLineNumberErrHandlerFromRegexp(`:(\d+):(\d*):`),
-	newLineNumberErrHandlerFromRegexp(".*:(\\d+):"),
+	newLineNumberErrHandlerFromRegexp(`:(\d+):`),
 
-	// TOML parse errors
-	tomlLineNumberExtractor,
 	// YAML parse errors
-	newLineNumberErrHandlerFromRegexp("line (\\d+):"),
+	newLineNumberErrHandlerFromRegexp(`line (\d+):`),
 
 	// i18n bundle errors
-	newLineNumberErrHandlerFromRegexp("\\((\\d+),\\s(\\d*)"),
+	newLineNumberErrHandlerFromRegexp(`\((\d+),\s(\d*)`),
 }
 
 type lineNumberExtractor func(e error) (int, int)
 
-var tomlLineNumberExtractor = func(e error) (int, int) {
-	e = errors.Cause(e)
-	if terr, ok := e.(*toml.DecodeError); ok {
-		return terr.Position()
-	}
-	return -1, -1
-}
-
 func newLineNumberErrHandlerFromRegexp(expression string) lineNumberExtractor {
 	re := regexp.MustCompile(expression)
 	return extractLineNo(re)
@@ -72,6 +58,6 @@ func extractLineNo(re *regexp.Regexp) lineNumberExtractor {
 			return lno, col
 		}
 
-		return -1, col
+		return 0, col
 	}
 }

common/hugio/copy.go

@@ -14,13 +14,12 @@
 package hugio
 
 import (
+	"fmt"
 	"io"
 	"io/ioutil"
 	"os"
 	"path/filepath"
 
-	"github.com/pkg/errors"
-
 	"github.com/spf13/afero"
 )
 
@@ -60,7 +59,7 @@ func CopyDir(fs afero.Fs, from, to string, shouldCopy func(filename string) bool
 	}
 
 	if !fi.IsDir() {
-		return errors.Errorf("%q is not a directory", from)
+		return fmt.Errorf("%q is not a directory", from)
 	}
 
 	err = fs.MkdirAll(to, 0777) // before umask

config/commonConfig.go

@@ -14,12 +14,11 @@
 package config
 
 import (
+	"fmt"
 	"sort"
 	"strings"
 	"sync"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/common/types"
 
 	"github.com/gobwas/glob"
@@ -207,7 +206,7 @@ func DecodeServer(cfg Provider) (*Server, error) {
 			// There are some tricky infinite loop situations when dealing
 			// when the target does not have a trailing slash.
 			// This can certainly be handled better, but not time for that now.
-			return nil, errors.Errorf("unsupported redirect to value %q in server config; currently this must be either a remote destination or a local folder, e.g. \"/blog/\" or \"/blog/index.html\"", redir.To)
+			return nil, fmt.Errorf("unsupported redirect to value %q in server config; currently this must be either a remote destination or a local folder, e.g. \"/blog/\" or \"/blog/index.html\"", redir.To)
 		}
 		s.Redirects[i] = redir
 	}

config/configLoader.go

@@ -14,14 +14,13 @@
 package config
 
 import (
+	"fmt"
 	"os"
 	"path/filepath"
 	"strings"
 
 	"github.com/gohugoio/hugo/common/herrors"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/common/paths"
 
 	"github.com/gohugoio/hugo/common/maps"
@@ -60,7 +59,7 @@ func FromConfigString(config, configType string) (Provider, error) {
 func FromFile(fs afero.Fs, filename string) (Provider, error) {
 	m, err := loadConfigFromFile(fs, filename)
 	if err != nil {
-		return nil, herrors.WithFileContextForFileDefault(err, filename, fs)
+		return nil, herrors.NewFileErrorFromFile(err, filename, filename, fs, herrors.SimpleLineMatcher)
 	}
 	return NewFrom(m), nil
 }
@@ -132,7 +131,7 @@ func LoadConfigFromDir(sourceFs afero.Fs, configDir, environment string) (Provid
 			if err != nil {
 				// This will be used in error reporting, use the most specific value.
 				dirnames = []string{path}
-				return errors.Wrapf(err, "failed to unmarshl config for path %q", path)
+				return fmt.Errorf("failed to unmarshl config for path %q: %w", path, err)
 			}
 
 			var keyPath []string

create/content.go

@@ -27,7 +27,7 @@ import (
 	"github.com/gohugoio/hugo/common/hexec"
 	"github.com/gohugoio/hugo/common/paths"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/gohugoio/hugo/hugofs/files"
 
@@ -94,11 +94,11 @@ func NewContent(h *hugolib.HugoSites, kind, targetPath string) error {
 		}
 
 		if ext == "" {
-			return "", errors.Errorf("failed to resolve %q to a archetype template", targetPath)
+			return "", fmt.Errorf("failed to resolve %q to a archetype template", targetPath)
 		}
 
 		if !files.IsContentFile(b.targetPath) {
-			return "", errors.Errorf("target path %q is not a known content format", b.targetPath)
+			return "", fmt.Errorf("target path %q is not a known content format", b.targetPath)
 		}
 
 		return b.buildFile()
@@ -188,14 +188,14 @@ func (b *contentBuilder) buildDir() error {
 
 		in, err := meta.Open()
 		if err != nil {
-			return errors.Wrap(err, "failed to open non-content file")
+			return fmt.Errorf("failed to open non-content file: %w", err)
 		}
 
 		targetFilename := filepath.Join(baseDir, b.targetPath, strings.TrimPrefix(filename, b.archetypeFilename))
 		targetDir := filepath.Dir(targetFilename)
 
 		if err := b.sourceFs.MkdirAll(targetDir, 0o777); err != nil && !os.IsExist(err) {
-			return errors.Wrapf(err, "failed to create target directory for %q", targetDir)
+			return fmt.Errorf("failed to create target directory for %q: %w", targetDir, err)
 		}
 
 		out, err := b.sourceFs.Create(targetFilename)
@@ -329,7 +329,7 @@ func (b *contentBuilder) mapArcheTypeDir() error {
 	w := hugofs.NewWalkway(walkCfg)
 
 	if err := w.Walk(); err != nil {
-		return errors.Wrapf(err, "failed to walk archetype dir %q", b.archetypeFilename)
+		return fmt.Errorf("failed to walk archetype dir %q: %w", b.archetypeFilename, err)
 	}
 
 	b.dirMap = m
@@ -374,7 +374,7 @@ func (b *contentBuilder) usesSiteVar(filename string) (bool, error) {
 	}
 	bb, err := afero.ReadFile(b.archeTypeFs, filename)
 	if err != nil {
-		return false, errors.Wrap(err, "failed to open archetype file")
+		return false, fmt.Errorf("failed to open archetype file: %w", err)
 	}
 
 	return bytes.Contains(bb, []byte(".Site")) || bytes.Contains(bb, []byte("site.")), nil

deploy/deploy.go

@@ -34,11 +34,12 @@ import (
 	"strings"
 	"sync"
 
+	"errors"
+
 	"github.com/dustin/go-humanize"
 	"github.com/gobwas/glob"
 	"github.com/gohugoio/hugo/config"
 	"github.com/gohugoio/hugo/media"
-	"github.com/pkg/errors"
 	"github.com/spf13/afero"
 	jww "github.com/spf13/jwalterweatherman"
 	"golang.org/x/text/unicode/norm"

deploy/deployConfig.go

@@ -20,12 +20,13 @@ import (
 	"fmt"
 	"regexp"
 
+	"errors"
+
 	"github.com/gobwas/glob"
 	"github.com/gohugoio/hugo/config"
 	hglob "github.com/gohugoio/hugo/hugofs/glob"
 	"github.com/gohugoio/hugo/media"
 	"github.com/mitchellh/mapstructure"
-	"github.com/pkg/errors"
 )
 
 const deploymentConfigKey = "deployment"

deps/deps.go

@@ -1,12 +1,11 @@
 package deps
 
 import (
+	"fmt"
 	"sync"
 	"sync/atomic"
 	"time"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/cache/filecache"
 	"github.com/gohugoio/hugo/common/hexec"
 	"github.com/gohugoio/hugo/common/loggers"
@@ -186,11 +185,11 @@ func (d *Deps) SetTextTmpl(tmpl tpl.TemplateParseFinder) {
 func (d *Deps) LoadResources() error {
 	// Note that the translations need to be loaded before the templates.
 	if err := d.translationProvider.Update(d); err != nil {
-		return errors.Wrap(err, "loading translations")
+		return fmt.Errorf("loading translations: %w", err)
 	}
 
 	if err := d.templateProvider.Update(d); err != nil {
-		return errors.Wrap(err, "loading templates")
+		return fmt.Errorf("loading templates: %w", err)
 	}
 
 	return nil
@@ -236,18 +235,18 @@ func New(cfg DepsCfg) (*Deps, error) {
 
 	securityConfig, err := security.DecodeConfig(cfg.Cfg)
 	if err != nil {
-		return nil, errors.WithMessage(err, "failed to create security config from configuration")
+		return nil, fmt.Errorf("failed to create security config from configuration: %w", err)
 	}
 	execHelper := hexec.New(securityConfig)
 
 	ps, err := helpers.NewPathSpec(fs, cfg.Language, logger)
 	if err != nil {
-		return nil, errors.Wrap(err, "create PathSpec")
+		return nil, fmt.Errorf("create PathSpec: %w", err)
 	}
 
 	fileCaches, err := filecache.NewCaches(ps)
 	if err != nil {
-		return nil, errors.WithMessage(err, "failed to create file caches from configuration")
+		return nil, fmt.Errorf("failed to create file caches from configuration: %w", err)
 	}
 
 	errorHandler := &globalErrHandler{}

helpers/path.go

@@ -31,7 +31,6 @@ import (
 	"github.com/gohugoio/hugo/hugofs"
 
 	"github.com/gohugoio/hugo/common/hugio"
-	_errors "github.com/pkg/errors"
 	"github.com/spf13/afero"
 )
 
@@ -403,7 +402,7 @@ func GetCacheDir(fs afero.Fs, cfg config.Provider) (string, error) {
 		if !exists {
 			err := fs.MkdirAll(cacheDir, 0777) // Before umask
 			if err != nil {
-				return "", _errors.Wrap(err, "failed to create cache dir")
+				return "", fmt.Errorf("failed to create cache dir: %w", err)
 			}
 		}
 		return cacheDir, nil

hugofs/decorators.go

@@ -14,12 +14,11 @@
 package hugofs
 
 import (
+	"fmt"
 	"os"
 	"path/filepath"
 	"strings"
 
-	"github.com/pkg/errors"
-
 	"github.com/spf13/afero"
 )
 
@@ -232,7 +231,7 @@ func (l *baseFileDecoratorFile) Readdir(c int) (ofi []os.FileInfo, err error) {
 		}
 		fi, err = l.fs.decorate(fi, filename)
 		if err != nil {
-			return nil, errors.Wrap(err, "decorate")
+			return nil, fmt.Errorf("decorate: %w", err)
 		}
 		fisp = append(fisp, fi)
 	}

hugofs/fileinfo.go

@@ -28,7 +28,7 @@ import (
 	"github.com/gohugoio/hugo/hugofs/files"
 	"golang.org/x/text/unicode/norm"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/gohugoio/hugo/common/hreflect"
 

hugofs/rootmapping_fs.go

@@ -21,8 +21,6 @@ import (
 
 	"github.com/gohugoio/hugo/hugofs/files"
 
-	"github.com/pkg/errors"
-
 	radix "github.com/armon/go-radix"
 	"github.com/spf13/afero"
 )
@@ -191,7 +189,7 @@ func (fs *RootMappingFs) Dirs(base string) ([]FileMetaInfo, error) {
 		fs = decorateDirs(fs, r.Meta)
 		fi, err := fs.Stat("")
 		if err != nil {
-			return nil, errors.Wrap(err, "RootMappingFs.Dirs")
+			return nil, fmt.Errorf("RootMappingFs.Dirs: %w", err)
 		}
 
 		if !fi.IsDir() {
@@ -560,7 +558,7 @@ func (fs *RootMappingFs) doLstat(name string) ([]FileMetaInfo, error) {
 
 	if fileCount > 1 {
 		// Not supported by this filesystem.
-		return nil, errors.Errorf("found multiple files with name %q, use .Readdir or the source filesystem directly", name)
+		return nil, fmt.Errorf("found multiple files with name %q, use .Readdir or the source filesystem directly", name)
 	}
 
 	return []FileMetaInfo{roots[0].fi}, nil

hugofs/slice_fs.go

@@ -14,11 +14,12 @@
 package hugofs
 
 import (
+	"fmt"
 	"os"
 	"syscall"
 	"time"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/spf13/afero"
 )
@@ -83,7 +84,7 @@ func (fs *SliceFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
 		return decorateFileInfo(fi, fs, fs.getOpener(name), "", "", nil), false, nil
 	}
 
-	return nil, false, errors.Errorf("lstat: files not supported: %q", name)
+	return nil, false, fmt.Errorf("lstat: files not supported: %q", name)
 }
 
 func (fs *SliceFs) Mkdir(n string, p os.FileMode) error {

hugofs/walk.go

@@ -22,7 +22,7 @@ import (
 
 	"github.com/gohugoio/hugo/common/loggers"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/spf13/afero"
 )
@@ -125,7 +125,7 @@ func (w *Walkway) Walk() error {
 			if w.checkErr(w.root, err) {
 				return nil
 			}
-			return w.walkFn(w.root, nil, errors.Wrapf(err, "walk: %q", w.root))
+			return w.walkFn(w.root, nil, fmt.Errorf("walk: %q: %w", w.root, err))
 		}
 		fi = info.(FileMetaInfo)
 	}
@@ -192,7 +192,7 @@ func (w *Walkway) walk(path string, info FileMetaInfo, dirEntries []FileMetaInfo
 			if w.checkErr(path, err) {
 				return nil
 			}
-			return walkFn(path, info, errors.Wrapf(err, "walk: open %q (%q)", path, w.root))
+			return walkFn(path, info, fmt.Errorf("walk: open %q (%q): %w", path, w.root, err))
 		}
 
 		fis, err := f.Readdir(-1)
@@ -201,7 +201,7 @@ func (w *Walkway) walk(path string, info FileMetaInfo, dirEntries []FileMetaInfo
 			if w.checkErr(filename, err) {
 				return nil
 			}
-			return walkFn(path, info, errors.Wrap(err, "walk: Readdir"))
+			return walkFn(path, info, fmt.Errorf("walk: Readdir: %w", err))
 		}
 
 		dirEntries = fileInfosToFileMetaInfos(fis)

hugofs/walk_test.go

@@ -22,7 +22,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/gohugoio/hugo/common/para"
 	"github.com/gohugoio/hugo/htesting"

hugolib/config.go

@@ -33,11 +33,12 @@ import (
 
 	"github.com/gohugoio/hugo/parser/metadecoders"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/common/herrors"
 	"github.com/gohugoio/hugo/common/hugo"
 	"github.com/gohugoio/hugo/langs"
 	"github.com/gohugoio/hugo/modules"
-	"github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/config"
 	"github.com/gohugoio/hugo/config/privacy"
@@ -510,5 +511,5 @@ func (configLoader) loadSiteConfig(cfg config.Provider) (scfg SiteConfig, err er
 }
 
 func (l configLoader) wrapFileError(err error, filename string) error {
-	return herrors.WithFileContextForFileDefault(err, filename, l.Fs)
+	return herrors.NewFileErrorFromFile(err, filename, filename, l.Fs, herrors.SimpleLineMatcher)
 }

hugolib/configdir_test.go

@@ -146,7 +146,7 @@ baseURL = "https://example.org"
 	_, _, err := LoadConfig(ConfigSourceDescriptor{Fs: mm, Environment: "development", Filename: "hugo.toml", AbsConfigDir: "config"})
 	c.Assert(err, qt.Not(qt.IsNil))
 
-	fe := herrors.UnwrapErrorWithFileContext(err)
+	fe := herrors.UnwrapFileError(err)
 	c.Assert(fe, qt.Not(qt.IsNil))
 	c.Assert(fe.Position().Filename, qt.Equals, filepath.FromSlash("config/development/config.toml"))
 }

hugolib/content_factory.go

@@ -14,6 +14,7 @@
 package hugolib
 
 import (
+	"fmt"
 	"io"
 	"path/filepath"
 	"strings"
@@ -25,7 +26,6 @@ import (
 
 	"github.com/gohugoio/hugo/resources/page"
 
-	"github.com/pkg/errors"
 	"github.com/spf13/afero"
 )
 
@@ -48,12 +48,12 @@ func (f ContentFactory) ApplyArchetypeFilename(w io.Writer, p page.Page, archety
 	}
 
 	if fi.IsDir() {
-		return errors.Errorf("archetype directory (%q) not supported", archetypeFilename)
+		return fmt.Errorf("archetype directory (%q) not supported", archetypeFilename)
 	}
 
 	templateSource, err := afero.ReadFile(f.h.SourceFilesystems.Archetypes.Fs, archetypeFilename)
 	if err != nil {
-		return errors.Wrapf(err, "failed to read archetype file %q: %s", archetypeFilename, err)
+		return fmt.Errorf("failed to read archetype file %q: %s: %w", archetypeFilename, err, err)
 
 	}
 
@@ -79,12 +79,12 @@ func (f ContentFactory) ApplyArchetypeTemplate(w io.Writer, p page.Page, archety
 
 	templ, err := ps.s.TextTmpl().Parse("archetype.md", string(templateSource))
 	if err != nil {
-		return errors.Wrapf(err, "failed to parse archetype template: %s", err)
+		return fmt.Errorf("failed to parse archetype template: %s: %w", err, err)
 	}
 
 	result, err := executeToString(ps.s.Tmpl(), templ, d)
 	if err != nil {
-		return errors.Wrapf(err, "failed to execute archetype template: %s", err)
+		return fmt.Errorf("failed to execute archetype template: %s: %w", err, err)
 	}
 
 	_, err = io.WriteString(w, f.shortcodeReplacerPost.Replace(result))

hugolib/content_map.go

@@ -23,7 +23,6 @@ import (
 	"github.com/gohugoio/hugo/helpers"
 
 	"github.com/gohugoio/hugo/resources/page"
-	"github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/hugofs/files"
 
@@ -207,7 +206,7 @@ func (b *cmInsertKeyBuilder) WithFile(fi hugofs.FileMetaInfo) *cmInsertKeyBuilde
 
 	p, k := b.getBundle(p)
 	if k == "" {
-		b.err = errors.Errorf("no bundle header found for %q", bundlePath)
+		b.err = fmt.Errorf("no bundle header found for %q", bundlePath)
 		return b
 	}
 

hugolib/content_map_page.go

@@ -35,7 +35,6 @@ import (
 	"github.com/spf13/cast"
 
 	"github.com/gohugoio/hugo/common/para"
-	"github.com/pkg/errors"
 )
 
 func newPageMaps(h *HugoSites) *pageMaps {
@@ -131,13 +130,13 @@ func (m *pageMap) newPageFromContentNode(n *contentNode, parentBucket *pagesMapB
 
 	gi, err := s.h.gitInfoForPage(ps)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to load Git data")
+		return nil, fmt.Errorf("failed to load Git data: %w", err)
 	}
 	ps.gitInfo = gi
 
 	owners, err := s.h.codeownersForPage(ps)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to load CODEOWNERS")
+		return nil, fmt.Errorf("failed to load CODEOWNERS: %w", err)
 	}
 	ps.codeowners = owners
 
@@ -282,7 +281,7 @@ func (m *pageMap) createSiteTaxonomies() error {
 		} else {
 			taxonomy := m.s.taxonomies[viewName.plural]
 			if taxonomy == nil {
-				walkErr = errors.Errorf("missing taxonomy: %s", viewName.plural)
+				walkErr = fmt.Errorf("missing taxonomy: %s", viewName.plural)
 				return true
 			}
 			m.taxonomyEntries.WalkPrefix(s, func(ss string, v any) bool {

hugolib/fileInfo.go

@@ -14,12 +14,11 @@
 package hugolib
 
 import (
+	"fmt"
 	"strings"
 
 	"github.com/gohugoio/hugo/hugofs/files"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/hugofs"
 
 	"github.com/spf13/afero"
@@ -41,7 +40,7 @@ type fileInfo struct {
 func (fi *fileInfo) Open() (afero.File, error) {
 	f, err := fi.FileInfo().Meta().Open()
 	if err != nil {
-		err = errors.Wrap(err, "fileInfo")
+		err = fmt.Errorf("fileInfo: %w", err)
 	}
 
 	return f, err

hugolib/filesystems/basefs.go

@@ -35,8 +35,6 @@ import (
 
 	"github.com/gohugoio/hugo/hugofs/files"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/modules"
 
 	hpaths "github.com/gohugoio/hugo/common/paths"
@@ -176,7 +174,7 @@ func (b *BaseFs) AbsProjectContentDir(filename string) (string, string, error) {
 
 	}
 
-	return "", "", errors.Errorf("could not determine content directory for %q", filename)
+	return "", "", fmt.Errorf("could not determine content directory for %q", filename)
 }
 
 // ResolveJSConfigFile resolves the JS-related config file to a absolute
@@ -468,7 +466,7 @@ func NewBase(p *paths.Paths, logger loggers.Logger, options ...func(*BaseFs) err
 	builder := newSourceFilesystemsBuilder(p, logger, b)
 	sourceFilesystems, err := builder.Build()
 	if err != nil {
-		return nil, errors.Wrap(err, "build filesystems")
+		return nil, fmt.Errorf("build filesystems: %w", err)
 	}
 
 	b.SourceFilesystems = sourceFilesystems
@@ -502,7 +500,7 @@ func (b *sourceFilesystemsBuilder) Build() (*SourceFilesystems, error) {
 	if b.theBigFs == nil {
 		theBigFs, err := b.createMainOverlayFs(b.p)
 		if err != nil {
-			return nil, errors.Wrap(err, "create main fs")
+			return nil, fmt.Errorf("create main fs: %w", err)
 		}
 
 		b.theBigFs = theBigFs
@@ -544,7 +542,7 @@ func (b *sourceFilesystemsBuilder) Build() (*SourceFilesystems, error) {
 
 	contentFs, err := hugofs.NewLanguageFs(b.p.LanguagesDefaultFirst.AsOrdinalSet(), contentBfs)
 	if err != nil {
-		return nil, errors.Wrap(err, "create content filesystem")
+		return nil, fmt.Errorf("create content filesystem: %w", err)
 	}
 
 	b.result.Content = b.newSourceFilesystem(files.ComponentFolderContent, contentFs, contentDirs)

hugolib/hugo_sites.go

@@ -15,6 +15,7 @@ package hugolib
 
 import (
 	"context"
+	"fmt"
 	"io"
 	"path/filepath"
 	"sort"
@@ -33,9 +34,10 @@ import (
 	"github.com/gohugoio/hugo/output"
 	"github.com/gohugoio/hugo/parser/metadecoders"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/common/para"
 	"github.com/gohugoio/hugo/hugofs"
-	"github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/source"
 
@@ -194,7 +196,7 @@ func (h *hugoSitesInit) Reset() {
 
 func (h *HugoSites) Data() map[string]any {
 	if _, err := h.init.data.Do(); err != nil {
-		h.SendError(errors.Wrap(err, "failed to load data"))
+		h.SendError(fmt.Errorf("failed to load data: %w", err))
 		return nil
 	}
 	return h.data
@@ -242,7 +244,7 @@ func (h *HugoSites) pickOneAndLogTheRest(errors []error) error {
 	for j, err := range errors {
 		// If this is in server mode, we want to return an error to the client
 		// with a file context, if possible.
-		if herrors.UnwrapErrorWithFileContext(err) != nil {
+		if herrors.UnwrapFileError(err) != nil {
 			i = j
 			break
 		}
@@ -327,7 +329,7 @@ func newHugoSites(cfg deps.DepsCfg, sites ...*Site) (*HugoSites, error) {
 
 	langConfig, err := newMultiLingualFromSites(cfg.Cfg, sites...)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to create language config")
+		return nil, fmt.Errorf("failed to create language config: %w", err)
 	}
 
 	var contentChangeTracker *contentChangeMap
@@ -365,7 +367,7 @@ func newHugoSites(cfg deps.DepsCfg, sites ...*Site) (*HugoSites, error) {
 	h.init.data.Add(func() (any, error) {
 		err := h.loadData(h.PathSpec.BaseFs.Data.Dirs)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to load data")
+			return nil, fmt.Errorf("failed to load data: %w", err)
 		}
 		return nil, nil
 	})
@@ -391,7 +393,7 @@ func newHugoSites(cfg deps.DepsCfg, sites ...*Site) (*HugoSites, error) {
 	h.init.gitInfo.Add(func() (any, error) {
 		err := h.loadGitInfo()
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to load Git info")
+			return nil, fmt.Errorf("failed to load Git info: %w", err)
 		}
 		return nil, nil
 	})
@@ -402,7 +404,7 @@ func newHugoSites(cfg deps.DepsCfg, sites ...*Site) (*HugoSites, error) {
 
 	var l configLoader
 	if err := l.applyDeps(cfg, sites...); err != nil {
-		initErr = errors.Wrap(err, "add site dependencies")
+		initErr = fmt.Errorf("add site dependencies: %w", err)
 	}
 
 	h.Deps = sites[0].Deps
@@ -485,7 +487,7 @@ func (l configLoader) applyDeps(cfg deps.DepsCfg, sites ...*Site) error {
 
 			siteConfig, err := l.loadSiteConfig(s.language)
 			if err != nil {
-				return errors.Wrap(err, "load site config")
+				return fmt.Errorf("load site config: %w", err)
 			}
 			s.siteConfigConfig = siteConfig
 
@@ -516,17 +518,17 @@ func (l configLoader) applyDeps(cfg deps.DepsCfg, sites ...*Site) error {
 			var err error
 			d, err = deps.New(cfg)
 			if err != nil {
-				return errors.Wrap(err, "create deps")
+				return fmt.Errorf("create deps: %w", err)
 			}
 
 			d.OutputFormatsConfig = s.outputFormatsConfig
 
 			if err := onCreated(d); err != nil {
-				return errors.Wrap(err, "on created")
+				return fmt.Errorf("on created: %w", err)
 			}
 
 			if err = d.LoadResources(); err != nil {
-				return errors.Wrap(err, "load resources")
+				return fmt.Errorf("load resources: %w", err)
 			}
 
 		} else {
@@ -548,7 +550,7 @@ func NewHugoSites(cfg deps.DepsCfg) (*HugoSites, error) {
 	}
 	sites, err := createSitesFromConfig(cfg)
 	if err != nil {
-		return nil, errors.Wrap(err, "from config")
+		return nil, fmt.Errorf("from config: %w", err)
 	}
 	return newHugoSites(cfg, sites...)
 }
@@ -882,7 +884,7 @@ func (h *HugoSites) handleDataFile(r source.File) error {
 
 	f, err := r.FileInfo().Meta().Open()
 	if err != nil {
-		return errors.Wrapf(err, "data: failed to open %q:", r.LogicalName())
+		return fmt.Errorf("data: failed to open %q: %w", r.LogicalName(), err)
 	}
 	defer f.Close()
 
@@ -960,23 +962,16 @@ func (h *HugoSites) errWithFileContext(err error, f source.File) error {
 	if !ok {
 		return err
 	}
-
 	realFilename := fim.Meta().Filename
 
-	err, _ = herrors.WithFileContextForFile(
+	return herrors.NewFileErrorFromFile(err, realFilename, realFilename, h.SourceSpec.Fs.Source, herrors.SimpleLineMatcher)
-		err,
-		realFilename,
-		realFilename,
-		h.SourceSpec.Fs.Source,
-		herrors.SimpleLineMatcher)
 
-	return err
 }
 
 func (h *HugoSites) readData(f source.File) (any, error) {
 	file, err := f.FileInfo().Meta().Open()
 	if err != nil {
-		return nil, errors.Wrap(err, "readData: failed to open data file")
+		return nil, fmt.Errorf("readData: failed to open data file: %w", err)
 	}
 	defer file.Close()
 	content := helpers.ReaderToBytes(file)

hugolib/hugo_sites_build.go

@@ -35,7 +35,7 @@ import (
 
 	"github.com/gohugoio/hugo/output"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/fsnotify/fsnotify"
 	"github.com/gohugoio/hugo/helpers"
@@ -50,7 +50,7 @@ func (h *HugoSites) Build(config BuildCfg, events ...fsnotify.Event) error {
 	if !config.NoBuildLock {
 		unlock, err := h.BaseFs.LockBuild()
 		if err != nil {
-			return errors.Wrap(err, "failed to acquire a build lock")
+			return fmt.Errorf("failed to acquire a build lock: %w", err)
 		}
 		defer unlock()
 	}
@@ -99,11 +99,11 @@ func (h *HugoSites) Build(config BuildCfg, events ...fsnotify.Event) error {
 				if len(events) > 0 {
 					// Rebuild
 					if err := h.initRebuild(conf); err != nil {
-						return errors.Wrap(err, "initRebuild")
+						return fmt.Errorf("initRebuild: %w", err)
 					}
 				} else {
 					if err := h.initSites(conf); err != nil {
-						return errors.Wrap(err, "initSites")
+						return fmt.Errorf("initSites: %w", err)
 					}
 				}
 
@@ -117,7 +117,7 @@ func (h *HugoSites) Build(config BuildCfg, events ...fsnotify.Event) error {
 			}
 			trace.WithRegion(ctx, "process", f)
 			if err != nil {
-				return errors.Wrap(err, "process")
+				return fmt.Errorf("process: %w", err)
 			}
 
 			f = func() {

hugolib/hugo_sites_build_errors_test.go

@@ -2,6 +2,7 @@ package hugolib
 
 import (
 	"fmt"
+	"os"
 	"path/filepath"
 	"strings"
 	"testing"
@@ -17,14 +18,15 @@ type testSiteBuildErrorAsserter struct {
 	c    *qt.C
 }
 
-func (t testSiteBuildErrorAsserter) getFileError(err error) *herrors.ErrorWithFileContext {
+func (t testSiteBuildErrorAsserter) getFileError(err error) herrors.FileError {
 	t.c.Assert(err, qt.Not(qt.IsNil), qt.Commentf(t.name))
-	ferr := herrors.UnwrapErrorWithFileContext(err)
+	fe := herrors.UnwrapFileError(err)
-	t.c.Assert(ferr, qt.Not(qt.IsNil))
+	t.c.Assert(fe, qt.Not(qt.IsNil))
-	return ferr
+	return fe
 }
 
 func (t testSiteBuildErrorAsserter) assertLineNumber(lineNumber int, err error) {
+	t.c.Helper()
 	fe := t.getFileError(err)
 	t.c.Assert(fe.Position().LineNumber, qt.Equals, lineNumber, qt.Commentf(err.Error()))
 }
@@ -87,7 +89,6 @@ func TestSiteBuildErrors(t *testing.T) {
 				fe := a.getFileError(err)
 				a.c.Assert(fe.Position().LineNumber, qt.Equals, 5)
 				a.c.Assert(fe.Position().ColumnNumber, qt.Equals, 1)
-				a.c.Assert(fe.ChromaLexer, qt.Equals, "go-html-template")
 				a.assertErrorMessage("\"layouts/foo/single.html:5:1\": parse failed: template: foo/single.html:5: unexpected \"}\" in operand", fe.Error())
 			},
 		},
@@ -101,7 +102,6 @@ func TestSiteBuildErrors(t *testing.T) {
 				fe := a.getFileError(err)
 				a.c.Assert(fe.Position().LineNumber, qt.Equals, 5)
 				a.c.Assert(fe.Position().ColumnNumber, qt.Equals, 14)
-				a.c.Assert(fe.ChromaLexer, qt.Equals, "go-html-template")
 				a.assertErrorMessage("\"layouts/_default/single.html:5:14\": execute of template failed", fe.Error())
 			},
 		},
@@ -115,7 +115,6 @@ func TestSiteBuildErrors(t *testing.T) {
 				fe := a.getFileError(err)
 				a.c.Assert(fe.Position().LineNumber, qt.Equals, 5)
 				a.c.Assert(fe.Position().ColumnNumber, qt.Equals, 14)
-				a.c.Assert(fe.ChromaLexer, qt.Equals, "go-html-template")
 				a.assertErrorMessage("\"layouts/_default/single.html:5:14\": execute of template failed", fe.Error())
 			},
 		},
@@ -130,18 +129,17 @@ func TestSiteBuildErrors(t *testing.T) {
 			},
 		},
 		{
-			name:     "Shortode execute failed",
+			name:     "Shortcode execute failed",
 			fileType: shortcode,
 			fileFixer: func(content string) string {
 				return strings.Replace(content, ".Title", ".Titles", 1)
 			},
 			assertBuildError: func(a testSiteBuildErrorAsserter, err error) {
 				fe := a.getFileError(err)
-				a.c.Assert(fe.Position().LineNumber, qt.Equals, 7)
-				a.c.Assert(fe.ChromaLexer, qt.Equals, "md")
 				// Make sure that it contains both the content file and template
-				a.assertErrorMessage(`content/myyaml.md:7:10": failed to render shortcode "sc"`, fe.Error())
+				a.assertErrorMessage(`"content/myyaml.md:7:10": failed to render shortcode "sc": failed to process shortcode: "layouts/shortcodes/sc.html:4:22": execute of template failed: template: shortcodes/sc.html:4:22: executing "shortcodes/sc.html" at <.Page.Titles>: can't evaluate field Titles in type page.Page`, fe.Error())
-				a.assertErrorMessage(`shortcodes/sc.html:4:22: executing "shortcodes/sc.html" at <.Page.Titles>: can't evaluate`, fe.Error())
+				a.c.Assert(fe.Position().LineNumber, qt.Equals, 7)
+
 			},
 		},
 		{
@@ -154,7 +152,6 @@ func TestSiteBuildErrors(t *testing.T) {
 				fe := a.getFileError(err)
 				a.c.Assert(fe.Position().LineNumber, qt.Equals, 7)
 				a.c.Assert(fe.Position().ColumnNumber, qt.Equals, 10)
-				a.c.Assert(fe.ChromaLexer, qt.Equals, "md")
 				a.assertErrorMessage(`"content/myyaml.md:7:10": failed to extract shortcode: template for shortcode "nono" not found`, fe.Error())
 			},
 		},
@@ -162,10 +159,14 @@ func TestSiteBuildErrors(t *testing.T) {
 			name:     "Invalid YAML front matter",
 			fileType: yamlcontent,
 			fileFixer: func(content string) string {
-				return strings.Replace(content, "title:", "title: %foo", 1)
+				return `---
+title: "My YAML Content"
+foo bar
+---
+`
 			},
 			assertBuildError: func(a testSiteBuildErrorAsserter, err error) {
-				a.assertLineNumber(2, err)
+				a.assertLineNumber(3, err)
 			},
 		},
 		{
@@ -177,7 +178,6 @@ func TestSiteBuildErrors(t *testing.T) {
 			assertBuildError: func(a testSiteBuildErrorAsserter, err error) {
 				fe := a.getFileError(err)
 				a.c.Assert(fe.Position().LineNumber, qt.Equals, 6)
-				a.c.Assert(fe.ErrorContext.ChromaLexer, qt.Equals, "toml")
 			},
 		},
 		{
@@ -188,9 +188,7 @@ func TestSiteBuildErrors(t *testing.T) {
 			},
 			assertBuildError: func(a testSiteBuildErrorAsserter, err error) {
 				fe := a.getFileError(err)
-
 				a.c.Assert(fe.Position().LineNumber, qt.Equals, 3)
-				a.c.Assert(fe.ErrorContext.ChromaLexer, qt.Equals, "json")
 			},
 		},
 		{
@@ -211,6 +209,9 @@ func TestSiteBuildErrors(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		if test.name != "Invalid JSON front matter" {
+			continue
+		}
 		test := test
 		t.Run(test.name, func(t *testing.T) {
 			t.Parallel()
@@ -311,6 +312,77 @@ Some content.
 			}
 		})
 	}
+
+}
+
+// Issue 9852
+func TestErrorMinify(t *testing.T) {
+	t.Parallel()
+
+	files := `
+-- config.toml --
+minify = true
+
+-- layouts/index.html --
+<body>
+<script>=;</script>
+</body>
+
+`
+
+	b, err := NewIntegrationTestBuilder(
+		IntegrationTestConfig{
+			T:           t,
+			TxtarString: files,
+		},
+	).BuildE()
+
+	fe := herrors.UnwrapFileError(err)
+	b.Assert(fe, qt.IsNotNil)
+	b.Assert(fe.Position().LineNumber, qt.Equals, 2)
+	b.Assert(fe.Position().ColumnNumber, qt.Equals, 9)
+	b.Assert(fe.Error(), qt.Contains, "unexpected = in expression on line 2 and column 9")
+	b.Assert(filepath.ToSlash(fe.Position().Filename), qt.Contains, "hugo-transform-error")
+	b.Assert(os.Remove(fe.Position().Filename), qt.IsNil)
+
+}
+
+func TestErrorNested(t *testing.T) {
+	t.Parallel()
+
+	files := `
+-- config.toml --
+-- layouts/index.html --
+line 1
+12{{ partial "foo.html" . }}
+line 4
+line 5
+-- layouts/partials/foo.html --
+line 1
+line 2
+123{{ .ThisDoesNotExist }}
+line 4
+`
+
+	b, err := NewIntegrationTestBuilder(
+		IntegrationTestConfig{
+			T:           t,
+			TxtarString: files,
+		},
+	).BuildE()
+
+	b.Assert(err, qt.IsNotNil)
+	errors := herrors.UnwrapFileErrorsWithErrorContext(err)
+	b.Assert(errors, qt.HasLen, 2)
+	fmt.Println(errors[0])
+	b.Assert(errors[0].Position().LineNumber, qt.Equals, 2)
+	b.Assert(errors[0].Position().ColumnNumber, qt.Equals, 5)
+	b.Assert(errors[0].Error(), qt.Contains, filepath.FromSlash(`"/layouts/index.html:2:5": execute of template failed`))
+	b.Assert(errors[0].ErrorContext().Lines, qt.DeepEquals, []string{"line 1", "12{{ partial \"foo.html\" . }}", "line 4", "line 5"})
+	b.Assert(errors[1].Position().LineNumber, qt.Equals, 3)
+	b.Assert(errors[1].Position().ColumnNumber, qt.Equals, 6)
+	b.Assert(errors[1].ErrorContext().Lines, qt.DeepEquals, []string{"line 1", "line 2", "123{{ .ThisDoesNotExist }}", "line 4"})
+
 }
 
 // https://github.com/gohugoio/hugo/issues/5375

hugolib/integrationtest_builder.go

@@ -169,8 +169,7 @@ func (s *IntegrationTestBuilder) destinationExists(filename string) bool {
 }
 
 func (s *IntegrationTestBuilder) AssertIsFileError(err error) {
-	var ferr *herrors.ErrorWithFileContext
+	s.Assert(err, qt.ErrorAs, new(herrors.FileError))
-	s.Assert(err, qt.ErrorAs, &ferr)
 }
 
 func (s *IntegrationTestBuilder) AssertRenderCountContent(count int) {

hugolib/page.go

@@ -39,8 +39,9 @@ import (
 	"github.com/gohugoio/hugo/common/herrors"
 	"github.com/gohugoio/hugo/parser/metadecoders"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/parser/pageparser"
-	"github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/output"
 
@@ -482,7 +483,7 @@ func (p *pageState) renderResources() (err error) {
 
 			src, ok := r.(resource.Source)
 			if !ok {
-				err = errors.Errorf("Resource %T does not support resource.Source", src)
+				err = fmt.Errorf("Resource %T does not support resource.Source", src)
 				return
 			}
 
@@ -560,23 +561,37 @@ func (p *pageState) addDependency(dep identity.Provider) {
 
 // wrapError adds some more context to the given error if possible/needed
 func (p *pageState) wrapError(err error) error {
-	if _, ok := err.(*herrors.ErrorWithFileContext); ok {
+	if err == nil {
-		// Preserve the first file context.
+		panic("wrapError with nil")
-		return err
-	}
-	var filename string
-	if !p.File().IsZero() {
-		filename = p.File().Filename()
 	}
 
-	err, _ = herrors.WithFileContextForFile(
+	if p.File().IsZero() {
-		err,
+		// No more details to add.
-		filename,
+		return fmt.Errorf("%q: %w", p.Pathc(), err)
-		filename,
+	}
-		p.s.SourceSpec.Fs.Source,
+
-		herrors.SimpleLineMatcher)
+	filename := p.File().Filename()
+
+	if ferr := herrors.UnwrapFileError(err); ferr != nil {
+		errfilename := ferr.Position().Filename
+		if ferr.ErrorContext() != nil || errfilename == "" || !(errfilename == pageFileErrorName || filepath.IsAbs(errfilename)) {
+			return err
+		}
+		if filepath.IsAbs(errfilename) {
+			filename = errfilename
+		}
+		f, ferr2 := p.s.SourceSpec.Fs.Source.Open(filename)
+		if ferr2 != nil {
+			return err
+		}
+		defer f.Close()
+		pos := ferr.Position()
+		pos.Filename = filename
+		return ferr.UpdatePosition(pos).UpdateContent(f, herrors.SimpleLineMatcher)
+	}
+
+	return herrors.NewFileErrorFromFile(err, filename, filename, p.s.SourceSpec.Fs.Source, herrors.SimpleLineMatcher)
 
-	return err
 }
 
 func (p *pageState) getContentConverter() converter.Converter {
@@ -606,6 +621,9 @@ func (p *pageState) mapContent(bucket *pagesMapBucket, meta *pageMeta) error {
 	iter := p.source.parsed.Iterator()
 
 	fail := func(err error, i pageparser.Item) error {
+		if fe, ok := err.(herrors.FileError); ok {
+			return fe
+		}
 		return p.parseError(err, iter.Input(), i.Pos)
 	}
 
@@ -626,7 +644,17 @@ Loop:
 			m, err := metadecoders.Default.UnmarshalToMap(it.Val, f)
 			if err != nil {
 				if fe, ok := err.(herrors.FileError); ok {
-					return herrors.ToFileErrorWithOffset(fe, iter.LineNumber()-1)
+					// Offset the starting position of front matter.
+					pos := fe.Position()
+					offset := iter.LineNumber() - 1
+					if f == metadecoders.YAML {
+						offset -= 1
+					}
+					pos.LineNumber += offset
+
+					fe.UpdatePosition(pos)
+
+					return fe
 				} else {
 					return err
 				}
@@ -682,7 +710,7 @@ Loop:
 
 			currShortcode, err := s.extractShortcode(ordinal, 0, iter)
 			if err != nil {
-				return fail(errors.Wrap(err, "failed to extract shortcode"), it)
+				return fail(err, it)
 			}
 
 			currShortcode.pos = it.Pos
@@ -715,7 +743,7 @@ Loop:
 		case it.IsEOF():
 			break Loop
 		case it.IsError():
-			err := fail(errors.WithStack(errors.New(it.ValStr())), it)
+			err := fail(errors.New(it.ValStr()), it)
 			currShortcode.err = err
 			return err
 
@@ -738,17 +766,17 @@ Loop:
 }
 
 func (p *pageState) errorf(err error, format string, a ...any) error {
-	if herrors.UnwrapErrorWithFileContext(err) != nil {
+	if herrors.UnwrapFileError(err) != nil {
 		// More isn't always better.
 		return err
 	}
 	args := append([]any{p.Language().Lang, p.pathOrTitle()}, a...)
-	format = "[%s] page %q: " + format
+	args = append(args, err)
+	format = "[%s] page %q: " + format + ": %w"
 	if err == nil {
-		errors.Errorf(format, args...)
 		return fmt.Errorf(format, args...)
 	}
-	return errors.Wrapf(err, format, args...)
+	return fmt.Errorf(format, args...)
 }
 
 func (p *pageState) outputFormat() (f output.Format) {
@@ -759,12 +787,8 @@ func (p *pageState) outputFormat() (f output.Format) {
 }
 
 func (p *pageState) parseError(err error, input []byte, offset int) error {
-	if herrors.UnwrapFileError(err) != nil {
-		// Use the most specific location.
-		return err
-	}
 	pos := p.posFromInput(input, offset)
-	return herrors.NewFileError("md", -1, pos.LineNumber, pos.ColumnNumber, err)
+	return herrors.NewFileError("page.md", err).UpdatePosition(pos)
 }
 
 func (p *pageState) pathOrTitle() string {

hugolib/page__meta.go

@@ -34,7 +34,6 @@ import (
 	"github.com/gohugoio/hugo/related"
 
 	"github.com/gohugoio/hugo/source"
-	"github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/common/maps"
 	"github.com/gohugoio/hugo/config"
@@ -765,7 +764,7 @@ func (p *pageMeta) newContentConverter(ps *pageState, markup string, renderingCo
 	}
 	cp := p.s.ContentSpec.Converters.Get(markup)
 	if cp == nil {
-		return converter.NopConverter, errors.Errorf("no content renderer found for markup %q", p.markup)
+		return converter.NopConverter, fmt.Errorf("no content renderer found for markup %q", p.markup)
 	}
 
 	var id string

hugolib/page__per_output.go

@@ -23,11 +23,12 @@ import (
 	"sync"
 	"unicode/utf8"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/common/text"
 	"github.com/gohugoio/hugo/common/types/hstring"
 	"github.com/gohugoio/hugo/identity"
 	"github.com/mitchellh/mapstructure"
-	"github.com/pkg/errors"
 	"github.com/spf13/cast"
 
 	"github.com/gohugoio/hugo/markup/converter/hooks"
@@ -348,7 +349,7 @@ func (p *pageContentOutput) RenderString(args ...any) (template.HTML, error) {
 		}
 
 		if err := mapstructure.WeakDecode(m, &opts); err != nil {
-			return "", errors.WithMessage(err, "failed to decode options")
+			return "", fmt.Errorf("failed to decode options: %w", err)
 		}
 	}
 
@@ -416,7 +417,7 @@ func (p *pageContentOutput) Render(layout ...string) (template.HTML, error) {
 	// Make sure to send the *pageState and not the *pageContentOutput to the template.
 	res, err := executeToString(p.p.s.Tmpl(), templ, p.p)
 	if err != nil {
-		return "", p.p.wrapError(errors.Wrapf(err, "failed to execute template %q v", layout))
+		return "", p.p.wrapError(fmt.Errorf("failed to execute template %q v: %w", layout, err))
 	}
 	return template.HTML(res), nil
 }

hugolib/page__ref.go

@@ -19,7 +19,6 @@ import (
 	"github.com/gohugoio/hugo/common/text"
 
 	"github.com/mitchellh/mapstructure"
-	"github.com/pkg/errors"
 )
 
 func newPageRef(p *pageState) pageRef {
@@ -77,7 +76,7 @@ func (p pageRef) decodeRefArgs(args map[string]any) (refArgs, *Site, error) {
 func (p pageRef) ref(argsm map[string]any, source any) (string, error) {
 	args, s, err := p.decodeRefArgs(argsm)
 	if err != nil {
-		return "", errors.Wrap(err, "invalid arguments to Ref")
+		return "", fmt.Errorf("invalid arguments to Ref: %w", err)
 	}
 
 	if s == nil {
@@ -94,7 +93,7 @@ func (p pageRef) ref(argsm map[string]any, source any) (string, error) {
 func (p pageRef) relRef(argsm map[string]any, source any) (string, error) {
 	args, s, err := p.decodeRefArgs(argsm)
 	if err != nil {
-		return "", errors.Wrap(err, "invalid arguments to Ref")
+		return "", fmt.Errorf("invalid arguments to Ref: %w", err)
 	}
 
 	if s == nil {

hugolib/page_unwrap.go

@@ -14,7 +14,7 @@
 package hugolib
 
 import (
-	"github.com/pkg/errors"
+	"fmt"
 
 	"github.com/gohugoio/hugo/resources/page"
 )
@@ -36,7 +36,7 @@ func unwrapPage(in any) (page.Page, error) {
 	case nil:
 		return nil, nil
 	default:
-		return nil, errors.Errorf("unwrapPage: %T not supported", in)
+		return nil, fmt.Errorf("unwrapPage: %T not supported", in)
 	}
 }
 

hugolib/pages_process.go

@@ -22,7 +22,6 @@ import (
 	"github.com/gohugoio/hugo/source"
 
 	"github.com/gohugoio/hugo/hugofs/files"
-	"github.com/pkg/errors"
 	"golang.org/x/sync/errgroup"
 
 	"github.com/gohugoio/hugo/common/herrors"
@@ -156,7 +155,7 @@ func (p *sitePagesProcessor) copyFile(fim hugofs.FileMetaInfo) error {
 	meta := fim.Meta()
 	f, err := meta.Open()
 	if err != nil {
-		return errors.Wrap(err, "copyFile: failed to open")
+		return fmt.Errorf("copyFile: failed to open: %w", err)
 	}
 
 	s := p.m.s

hugolib/paths/paths.go

@@ -23,7 +23,6 @@ import (
 	"github.com/gohugoio/hugo/config"
 	"github.com/gohugoio/hugo/langs"
 	"github.com/gohugoio/hugo/modules"
-	"github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/hugofs"
 )
@@ -83,7 +82,7 @@ func New(fs *hugofs.Fs, cfg config.Provider) (*Paths, error) {
 	baseURLstr := cfg.GetString("baseURL")
 	baseURL, err := newBaseURLFromString(baseURLstr)
 	if err != nil {
-		return nil, errors.Wrapf(err, "Failed to create baseURL from %q:", baseURLstr)
+		return nil, fmt.Errorf("Failed to create baseURL from %q:: %w", baseURLstr, err)
 	}
 
 	contentDir := filepath.Clean(cfg.GetString("contentDir"))

hugolib/shortcode.go

@@ -27,8 +27,9 @@ import (
 
 	"github.com/gohugoio/hugo/helpers"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/common/herrors"
-	"github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/parser/pageparser"
 	"github.com/gohugoio/hugo/resources/page"
@@ -269,6 +270,7 @@ const (
 	innerNewlineRegexp = "\n"
 	innerCleanupRegexp = `\A<p>(.*)</p>\n\z`
 	innerCleanupExpand = "$1"
+	pageFileErrorName  = "page.md"
 )
 
 func renderShortcode(
@@ -297,9 +299,10 @@ func renderShortcode(
 			var err error
 			tmpl, err = s.TextTmpl().Parse(templName, templStr)
 			if err != nil {
-				fe := herrors.ToFileError("html", err)
+				fe := herrors.NewFileError(pageFileErrorName, err)
-				l1, l2 := p.posOffset(sc.pos).LineNumber, fe.Position().LineNumber
+				pos := fe.Position()
-				fe = herrors.ToFileErrorWithLineNumber(fe, l1+l2-1)
+				pos.LineNumber += p.posOffset(sc.pos).LineNumber
+				fe = fe.UpdatePosition(pos)
 				return "", false, p.wrapError(fe)
 			}
 
@@ -308,7 +311,7 @@ func renderShortcode(
 			var found bool
 			tmpl, found = s.TextTmpl().Lookup(templName)
 			if !found {
-				return "", false, errors.Errorf("no earlier definition of shortcode %q found", sc.name)
+				return "", false, fmt.Errorf("no earlier definition of shortcode %q found", sc.name)
 			}
 		}
 	} else {
@@ -389,9 +392,10 @@ func renderShortcode(
 	result, err := renderShortcodeWithPage(s.Tmpl(), tmpl, data)
 
 	if err != nil && sc.isInline {
-		fe := herrors.ToFileError("html", err)
+		fe := herrors.NewFileError("shortcode.md", err)
-		l1, l2 := p.posFromPage(sc.pos).LineNumber, fe.Position().LineNumber
+		pos := fe.Position()
-		fe = herrors.ToFileErrorWithLineNumber(fe, l1+l2-1)
+		pos.LineNumber += p.posOffset(sc.pos).LineNumber
+		fe = fe.UpdatePosition(pos)
 		return "", false, fe
 	}
 
@@ -415,7 +419,7 @@ func (s *shortcodeHandler) renderShortcodesForPage(p *pageState, f output.Format
 	for _, v := range s.shortcodes {
 		s, more, err := renderShortcode(0, s.s, tplVariants, v, nil, p)
 		if err != nil {
-			err = p.parseError(errors.Wrapf(err, "failed to render shortcode %q", v.name), p.source.parsed.Input(), v.pos)
+			err = p.parseError(fmt.Errorf("failed to render shortcode %q: %w", v.name, err), p.source.parsed.Input(), v.pos)
 			return nil, false, err
 		}
 		hasVariants = hasVariants || more
@@ -447,9 +451,10 @@ func (s *shortcodeHandler) extractShortcode(ordinal, level int, pt *pageparser.I
 	cnt := 0
 	nestedOrdinal := 0
 	nextLevel := level + 1
+	const errorPrefix = "failed to extract shortcode"
 
 	fail := func(err error, i pageparser.Item) error {
-		return s.parseError(err, pt.Input(), i.Pos)
+		return s.parseError(fmt.Errorf("%s: %w", errorPrefix, err), pt.Input(), i.Pos)
 	}
 
 Loop:
@@ -508,7 +513,7 @@ Loop:
 						// return that error, more specific
 						continue
 					}
-					return sc, fail(errors.Errorf("shortcode %q has no .Inner, yet a closing tag was provided", next.Val), next)
+					return sc, fail(fmt.Errorf("shortcode %q has no .Inner, yet a closing tag was provided", next.Val), next)
 				}
 			}
 			if next.IsRightShortcodeDelim() {
@@ -538,7 +543,7 @@ Loop:
 			// Used to check if the template expects inner content.
 			templs := s.s.Tmpl().LookupVariants(sc.name)
 			if templs == nil {
-				return nil, errors.Errorf("template for shortcode %q not found", sc.name)
+				return nil, fmt.Errorf("%s: template for shortcode %q not found", errorPrefix, sc.name)
 			}
 
 			sc.info = templs[0].(tpl.Info)
@@ -639,7 +644,7 @@ func renderShortcodeWithPage(h tpl.TemplateHandler, tmpl tpl.Template, data *Sho
 
 	err := h.Execute(tmpl, buffer, data)
 	if err != nil {
-		return "", errors.Wrap(err, "failed to process shortcode")
+		return "", fmt.Errorf("failed to process shortcode: %w", err)
 	}
 	return buffer.String(), nil
 }

hugolib/shortcode_test.go

@@ -1340,7 +1340,7 @@ func TestShortcodeNoInner(t *testing.T) {
 
 	b := newTestSitesBuilder(t)
 
-	b.WithContent("page.md", `---
+	b.WithContent("mypage.md", `---
 title: "No Inner!"
 ---
 {{< noinner >}}{{< /noinner >}}
@@ -1350,7 +1350,7 @@ title: "No Inner!"
 		"layouts/shortcodes/noinner.html", `No inner here.`)
 
 	err := b.BuildE(BuildCfg{})
-	b.Assert(err.Error(), qt.Contains, `failed to extract shortcode: shortcode "noinner" has no .Inner, yet a closing tag was provided`)
+	b.Assert(err.Error(), qt.Contains, filepath.FromSlash(`"content/mypage.md:4:21": failed to extract shortcode: shortcode "noinner" has no .Inner, yet a closing tag was provided`))
 }
 
 func TestShortcodeStableOutputFormatTemplates(t *testing.T) {

hugolib/site.go

@@ -59,8 +59,6 @@ import (
 
 	"github.com/gohugoio/hugo/common/hugo"
 	"github.com/gohugoio/hugo/publisher"
-	"github.com/pkg/errors"
-	_errors "github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/langs"
 
@@ -508,7 +506,7 @@ But this also means that your site configuration may not do what you expect. If
 	if cfg.Language.IsSet("related") {
 		relatedContentConfig, err = related.DecodeConfig(cfg.Language.GetParams("related"))
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to decode related config")
+			return nil, fmt.Errorf("failed to decode related config: %w", err)
 		}
 	} else {
 		relatedContentConfig = related.DefaultConfig
@@ -546,7 +544,7 @@ But this also means that your site configuration may not do what you expect. If
 		var err error
 		cascade, err := page.DecodeCascade(cfg.Language.Get("cascade"))
 		if err != nil {
-			return nil, errors.Errorf("failed to decode cascade config: %s", err)
+			return nil, fmt.Errorf("failed to decode cascade config: %s", err)
 		}
 
 		siteBucket = &pagesMapBucket{
@@ -1211,11 +1209,11 @@ func (s *Site) processPartial(config *BuildCfg, init func(config *BuildCfg) erro
 
 func (s *Site) process(config BuildCfg) (err error) {
 	if err = s.initialize(); err != nil {
-		err = errors.Wrap(err, "initialize")
+		err = fmt.Errorf("initialize: %w", err)
 		return
 	}
 	if err = s.readAndProcessContent(config); err != nil {
-		err = errors.Wrap(err, "readAndProcessContent")
+		err = fmt.Errorf("readAndProcessContent: %w", err)
 		return
 	}
 	return err
@@ -1534,7 +1532,7 @@ func (s *Site) assembleMenus() {
 
 		for name, me := range p.pageMenus.menus() {
 			if _, ok := flat[twoD{name, me.KeyName()}]; ok {
-				err := p.wrapError(errors.Errorf("duplicate menu entry with identifier %q in menu %q", me.KeyName(), name))
+				err := p.wrapError(fmt.Errorf("duplicate menu entry with identifier %q in menu %q", me.KeyName(), name))
 				s.Log.Warnln(err)
 				continue
 			}
@@ -1819,7 +1817,7 @@ func (s *Site) renderForTemplate(name, outputFormat string, d any, w io.Writer,
 	}
 
 	if err = s.Tmpl().Execute(templ, w, d); err != nil {
-		return _errors.Wrapf(err, "render of %q failed", name)
+		return fmt.Errorf("render of %q failed: %w", name, err)
 	}
 	return
 }

hugolib/site_render.go

@@ -23,8 +23,9 @@ import (
 
 	"github.com/gohugoio/hugo/config"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/output"
-	"github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/resources/page"
 	"github.com/gohugoio/hugo/resources/page/pagemeta"
@@ -95,7 +96,7 @@ func (s *Site) renderPages(ctx *siteRenderContext) error {
 
 	err := <-errs
 	if err != nil {
-		return errors.Wrap(err, "failed to render pages")
+		return fmt.Errorf("failed to render pages: %w", err)
 	}
 	return nil
 }

hugolib/testhelpers_test.go

@@ -28,10 +28,8 @@ import (
 	"github.com/google/go-cmp/cmp"
 
 	"github.com/gohugoio/hugo/parser"
-	"github.com/pkg/errors"
 
 	"github.com/fsnotify/fsnotify"
-	"github.com/gohugoio/hugo/common/herrors"
 	"github.com/gohugoio/hugo/common/hexec"
 	"github.com/gohugoio/hugo/common/maps"
 	"github.com/gohugoio/hugo/config"
@@ -471,7 +469,6 @@ func (s *sitesBuilder) writeFilePairs(folder string, files []filenameContent) *s
 
 func (s *sitesBuilder) CreateSites() *sitesBuilder {
 	if err := s.CreateSitesE(); err != nil {
-		herrors.PrintStackTraceFromErr(err)
 		s.Fatalf("Failed to create sites: %s", err)
 	}
 
@@ -517,7 +514,7 @@ func (s *sitesBuilder) CreateSitesE() error {
 				"i18n",
 			} {
 				if err := os.MkdirAll(filepath.Join(s.workingDir, dir), 0777); err != nil {
-					return errors.Wrapf(err, "failed to create %q", dir)
+					return fmt.Errorf("failed to create %q: %w", dir, err)
 				}
 			}
 		}
@@ -536,7 +533,7 @@ func (s *sitesBuilder) CreateSitesE() error {
 	}
 
 	if err := s.LoadConfig(); err != nil {
-		return errors.Wrap(err, "failed to load config")
+		return fmt.Errorf("failed to load config: %w", err)
 	}
 
 	s.Fs.PublishDir = hugofs.NewCreateCountingFs(s.Fs.PublishDir)
@@ -549,7 +546,7 @@ func (s *sitesBuilder) CreateSitesE() error {
 
 	sites, err := NewHugoSites(depsCfg)
 	if err != nil {
-		return errors.Wrap(err, "failed to create sites")
+		return fmt.Errorf("failed to create sites: %w", err)
 	}
 	s.H = sites
 
@@ -612,7 +609,6 @@ func (s *sitesBuilder) build(cfg BuildCfg, shouldFail bool) *sitesBuilder {
 		}
 	}
 	if err != nil && !shouldFail {
-		herrors.PrintStackTraceFromErr(err)
 		s.Fatalf("Build failed: %s", err)
 	} else if err == nil && shouldFail {
 		s.Fatalf("Expected error")

langs/config.go

@@ -23,7 +23,7 @@ import (
 
 	"github.com/spf13/cast"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/gohugoio/hugo/config"
 )
@@ -72,7 +72,7 @@ func LoadLanguageSettings(cfg config.Provider, oldLangs Languages) (c LanguagesC
 	} else {
 		languages2, err = toSortedLanguages(cfg, languages)
 		if err != nil {
-			return c, errors.Wrap(err, "Failed to parse multilingual config")
+			return c, fmt.Errorf("Failed to parse multilingual config: %w", err)
 		}
 	}
 

langs/i18n/translationProvider.go

@@ -15,6 +15,7 @@ package i18n
 
 import (
 	"encoding/json"
+	"fmt"
 	"strings"
 
 	"github.com/gohugoio/hugo/common/paths"
@@ -30,7 +31,6 @@ import (
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/hugofs"
 	"github.com/gohugoio/hugo/source"
-	_errors "github.com/pkg/errors"
 )
 
 // TranslationProvider provides translation handling, i.e. loading
@@ -83,7 +83,7 @@ const artificialLangTagPrefix = "art-x-"
 func addTranslationFile(bundle *i18n.Bundle, r source.File) error {
 	f, err := r.FileInfo().Meta().Open()
 	if err != nil {
-		return _errors.Wrapf(err, "failed to open translations file %q:", r.LogicalName())
+		return fmt.Errorf("failed to open translations file %q:: %w", r.LogicalName(), err)
 	}
 
 	b := helpers.ReaderToBytes(f)
@@ -96,7 +96,7 @@ func addTranslationFile(bundle *i18n.Bundle, r source.File) error {
 		try := artificialLangTagPrefix + lang
 		_, err = language.Parse(try)
 		if err != nil {
-			return _errors.Errorf("%q %s.", try, err)
+			return fmt.Errorf("%q: %s", try, err)
 		}
 		name = artificialLangTagPrefix + name
 	}
@@ -111,7 +111,7 @@ func addTranslationFile(bundle *i18n.Bundle, r source.File) error {
 				return nil
 			}
 		}
-		return errWithFileContext(_errors.Wrapf(err, "failed to load translations"), r)
+		return errWithFileContext(fmt.Errorf("failed to load translations: %w", err), r)
 	}
 
 	return nil
@@ -138,11 +138,6 @@ func errWithFileContext(inerr error, r source.File) error {
 	}
 	defer f.Close()
 
-	err, _ = herrors.WithFileContext(
+	return herrors.NewFileError(realFilename, inerr).UpdateContent(f, herrors.SimpleLineMatcher)
-		inerr,
-		realFilename,
-		f,
-		herrors.SimpleLineMatcher)
 
-	return err
 }

langs/language.go

@@ -14,6 +14,7 @@
 package langs
 
 import (
+	"fmt"
 	"sort"
 	"strings"
 	"sync"
@@ -22,8 +23,6 @@ import (
 	"golang.org/x/text/collate"
 	"golang.org/x/text/language"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/common/htime"
 	"github.com/gohugoio/hugo/common/maps"
 	"github.com/gohugoio/hugo/config"
@@ -311,7 +310,7 @@ func GetCollator(l *Language) *Collator {
 func (l *Language) loadLocation(tzStr string) error {
 	location, err := time.LoadLocation(tzStr)
 	if err != nil {
-		return errors.Wrapf(err, "invalid timeZone for language %q", l.Lang)
+		return fmt.Errorf("invalid timeZone for language %q: %w", l.Lang, err)
 	}
 	l.location = location
 

lazy/init.go

@@ -19,7 +19,7 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/pkg/errors"
+	"errors"
 )
 
 // New creates a new empty Init.

markup/blackfriday/blackfriday_config/config.go

@@ -19,8 +19,9 @@
 package blackfriday_config
 
 import (
+	"fmt"
+
 	"github.com/mitchellh/mapstructure"
-	"github.com/pkg/errors"
 )
 
 // Default holds the default BlackFriday config.
@@ -64,7 +65,7 @@ type Config struct {
 
 func UpdateConfig(b Config, m map[string]any) (Config, error) {
 	if err := mapstructure.Decode(m, &b); err != nil {
-		return b, errors.WithMessage(err, "failed to decode rendering config")
+		return b, fmt.Errorf("failed to decode rendering config: %w", err)
 	}
 	return b, nil
 }

modules/client.go

@@ -47,7 +47,8 @@ import (
 
 	"github.com/gohugoio/hugo/common/hugio"
 
-	"github.com/pkg/errors"
+	"errors"
+
 	"github.com/spf13/afero"
 )
 
@@ -241,7 +242,7 @@ func (c *Client) Vendor() error {
 		// See https://github.com/gohugoio/hugo/issues/8239
 		// This is an error situation. We need something to vendor.
 		if t.Mounts() == nil {
-			return errors.Errorf("cannot vendor module %q, need at least one mount", t.Path())
+			return fmt.Errorf("cannot vendor module %q, need at least one mount", t.Path())
 		}
 
 		fmt.Fprintln(&modulesContent, "# "+t.Path()+" "+t.Version())
@@ -253,22 +254,22 @@ func (c *Client) Vendor() error {
 			targetFilename := filepath.Join(vendorDir, t.Path(), mount.Source)
 			fi, err := c.fs.Stat(sourceFilename)
 			if err != nil {
-				return errors.Wrap(err, "failed to vendor module")
+				return fmt.Errorf("failed to vendor module: %w", err)
 			}
 
 			if fi.IsDir() {
 				if err := hugio.CopyDir(c.fs, sourceFilename, targetFilename, nil); err != nil {
-					return errors.Wrap(err, "failed to copy module to vendor dir")
+					return fmt.Errorf("failed to copy module to vendor dir: %w", err)
 				}
 			} else {
 				targetDir := filepath.Dir(targetFilename)
 
 				if err := c.fs.MkdirAll(targetDir, 0755); err != nil {
-					return errors.Wrap(err, "failed to make target dir")
+					return fmt.Errorf("failed to make target dir: %w", err)
 				}
 
 				if err := hugio.CopyFile(c.fs, sourceFilename, targetFilename); err != nil {
-					return errors.Wrap(err, "failed to copy module file to vendor")
+					return fmt.Errorf("failed to copy module file to vendor: %w", err)
 				}
 			}
 		}
@@ -278,7 +279,7 @@ func (c *Client) Vendor() error {
 		_, err := c.fs.Stat(resourcesDir)
 		if err == nil {
 			if err := hugio.CopyDir(c.fs, resourcesDir, filepath.Join(vendorDir, t.Path(), files.FolderResources), nil); err != nil {
-				return errors.Wrap(err, "failed to copy resources to vendor dir")
+				return fmt.Errorf("failed to copy resources to vendor dir: %w", err)
 			}
 		}
 
@@ -287,7 +288,7 @@ func (c *Client) Vendor() error {
 		_, err = c.fs.Stat(configDir)
 		if err == nil {
 			if err := hugio.CopyDir(c.fs, configDir, filepath.Join(vendorDir, t.Path(), "config"), nil); err != nil {
-				return errors.Wrap(err, "failed to copy config dir to vendor dir")
+				return fmt.Errorf("failed to copy config dir to vendor dir: %w", err)
 			}
 		}
 
@@ -361,7 +362,7 @@ func (c *Client) get(args ...string) error {
 		args = append([]string{"-d"}, args...)
 	}
 	if err := c.runGo(context.Background(), c.logger.Out(), append([]string{"get"}, args...)...); err != nil {
-		errors.Wrapf(err, "failed to get %q", args)
+		return fmt.Errorf("failed to get %q: %w", args, err)
 	}
 	return nil
 }
@@ -372,7 +373,7 @@ func (c *Client) get(args ...string) error {
 func (c *Client) Init(path string) error {
 	err := c.runGo(context.Background(), c.logger.Out(), "mod", "init", path)
 	if err != nil {
-		return errors.Wrap(err, "failed to init modules")
+		return fmt.Errorf("failed to init modules: %w", err)
 	}
 
 	c.GoModulesFilename = filepath.Join(c.ccfg.WorkingDir, goModFilename)
@@ -458,7 +459,7 @@ func (c *Client) listGoMods() (goModules, error) {
 		out := ioutil.Discard
 		err := c.runGo(context.Background(), out, args...)
 		if err != nil {
-			return errors.Wrap(err, "failed to download modules")
+			return fmt.Errorf("failed to download modules: %w", err)
 		}
 		return nil
 	}
@@ -477,7 +478,7 @@ func (c *Client) listGoMods() (goModules, error) {
 		}
 		err := c.runGo(context.Background(), b, args...)
 		if err != nil {
-			return errors.Wrap(err, "failed to list modules")
+			return fmt.Errorf("failed to list modules: %w", err)
 		}
 
 		dec := json.NewDecoder(b)
@@ -487,7 +488,7 @@ func (c *Client) listGoMods() (goModules, error) {
 				if err == io.EOF {
 					break
 				}
-				return errors.Wrap(err, "failed to decode modules list")
+				return fmt.Errorf("failed to decode modules list: %w", err)
 			}
 
 			if err := handle(m); err != nil {
@@ -657,7 +658,7 @@ If you then run 'hugo mod graph' it should resolve itself to the most recent ver
 
 		_, ok := err.(*exec.ExitError)
 		if !ok {
-			return errors.Errorf("failed to execute 'go %v': %s %T", args, err, err)
+			return fmt.Errorf("failed to execute 'go %v': %s %T", args, err, err)
 		}
 
 		// Too old Go version
@@ -666,7 +667,7 @@ If you then run 'hugo mod graph' it should resolve itself to the most recent ver
 			return nil
 		}
 
-		return errors.Errorf("go command failed: %s", stderr)
+		return fmt.Errorf("go command failed: %s", stderr)
 
 	}
 
@@ -706,7 +707,7 @@ func (c *Client) shouldVendor(path string) bool {
 }
 
 func (c *Client) createThemeDirname(modulePath string, isProjectMod bool) (string, error) {
-	invalid := errors.Errorf("invalid module path %q; must be relative to themesDir when defined outside of the project", modulePath)
+	invalid := fmt.Errorf("invalid module path %q; must be relative to themesDir when defined outside of the project", modulePath)
 
 	modulePath = filepath.Clean(modulePath)
 	if filepath.IsAbs(modulePath) {

modules/collect.go

@@ -36,7 +36,7 @@ import (
 
 	"github.com/rogpeppe/go-internal/module"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/gohugoio/hugo/config"
 	"github.com/spf13/afero"
@@ -48,7 +48,7 @@ const vendorModulesFilename = "modules.txt"
 
 // IsNotExist returns whether an error means that a module could not be found.
 func IsNotExist(err error) bool {
-	return errors.Cause(err) == ErrNotExist
+	return errors.Is(err, os.ErrNotExist)
 }
 
 // CreateProjectModule creates modules from the given config.
@@ -289,7 +289,7 @@ func (c *collector) add(owner *moduleAdapter, moduleImport Import, disabled bool
 					return nil, nil
 				}
 				if found, _ := afero.Exists(c.fs, moduleDir); !found {
-					c.err = c.wrapModuleNotFound(errors.Errorf(`module %q not found; either add it as a Hugo Module or store it in %q.`, modulePath, c.ccfg.ThemesDir))
+					c.err = c.wrapModuleNotFound(fmt.Errorf(`module %q not found; either add it as a Hugo Module or store it in %q.`, modulePath, c.ccfg.ThemesDir))
 					return nil, nil
 				}
 			}
@@ -297,7 +297,7 @@ func (c *collector) add(owner *moduleAdapter, moduleImport Import, disabled bool
 	}
 
 	if found, _ := afero.Exists(c.fs, moduleDir); !found {
-		c.err = c.wrapModuleNotFound(errors.Errorf("%q not found", moduleDir))
+		c.err = c.wrapModuleNotFound(fmt.Errorf("%q not found", moduleDir))
 		return nil, nil
 	}
 
@@ -557,7 +557,7 @@ func (c *collector) collectModulesTXT(owner Module) error {
 		line = strings.TrimSpace(line)
 		parts := strings.Fields(line)
 		if len(parts) != 2 {
-			return errors.Errorf("invalid modules list: %q", filename)
+			return fmt.Errorf("invalid modules list: %q", filename)
 		}
 		path := parts[0]
 
@@ -662,7 +662,7 @@ func (c *collector) normalizeMounts(owner *moduleAdapter, mounts []Mount) ([]Mou
 			targetBase = mnt.Target[0:idxPathSep]
 		}
 		if !files.IsComponentFolder(targetBase) {
-			return nil, errors.Errorf("%s: mount target must be one of: %v", errMsg, files.ComponentFolders)
+			return nil, fmt.Errorf("%s: mount target must be one of: %v", errMsg, files.ComponentFolders)
 		}
 
 		out = append(out, mnt)
@@ -672,7 +672,7 @@ func (c *collector) normalizeMounts(owner *moduleAdapter, mounts []Mount) ([]Mou
 }
 
 func (c *collector) wrapModuleNotFound(err error) error {
-	err = errors.Wrap(ErrNotExist, err.Error())
+	err = fmt.Errorf(err.Error()+": %w", ErrNotExist)
 	if c.GoModulesFilename == "" {
 		return err
 	}
@@ -681,9 +681,9 @@ func (c *collector) wrapModuleNotFound(err error) error {
 
 	switch c.goBinaryStatus {
 	case goBinaryStatusNotFound:
-		return errors.Wrap(err, baseMsg+" you need to install Go to use it. See https://golang.org/dl/.")
+		return fmt.Errorf(baseMsg+" you need to install Go to use it. See https://golang.org/dl/ : %q", err)
 	case goBinaryStatusTooOld:
-		return errors.Wrap(err, baseMsg+" you need to a newer version of Go to use it. See https://golang.org/dl/.")
+		return fmt.Errorf(baseMsg+" you need to a newer version of Go to use it. See https://golang.org/dl/ : %w", err)
 	}
 
 	return err

modules/config.go

@@ -18,8 +18,6 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/common/hugo"
 
 	"github.com/gohugoio/hugo/config"
@@ -226,7 +224,7 @@ func decodeConfig(cfg config.Provider, pathReplacements map[string]string) (Conf
 			for _, repl := range c.Replacements {
 				parts := strings.Split(repl, "->")
 				if len(parts) != 2 {
-					return c, errors.Errorf(`invalid module.replacements: %q; configure replacement pairs on the form "oldpath->newpath" `, repl)
+					return c, fmt.Errorf(`invalid module.replacements: %q; configure replacement pairs on the form "oldpath->newpath" `, repl)
 				}
 
 				c.replacementsMap[strings.TrimSpace(parts[0])] = strings.TrimSpace(parts[1])

modules/npm/package_builder.go

@@ -24,8 +24,6 @@ import (
 
 	"github.com/gohugoio/hugo/hugofs/files"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/hugofs"
 	"github.com/spf13/afero"
 
@@ -57,7 +55,7 @@ func Pack(fs afero.Fs, fis []hugofs.FileMetaInfo) error {
 		if err == nil {
 			// Preserve the original in package.hugo.json.
 			if err = hugio.CopyFile(fs, packageJSONName, files.FilenamePackageHugoJSON); err != nil {
-				return errors.Wrap(err, "npm pack: failed to copy package file")
+				return fmt.Errorf("npm pack: failed to copy package file: %w", err)
 			}
 		} else {
 			// Create one.
@@ -83,7 +81,7 @@ func Pack(fs afero.Fs, fis []hugofs.FileMetaInfo) error {
 	masterFilename := meta.Filename
 	f, err := meta.Open()
 	if err != nil {
-		return errors.Wrap(err, "npm pack: failed to open package file")
+		return fmt.Errorf("npm pack: failed to open package file: %w", err)
 	}
 	b = newPackageBuilder(meta.Module, f)
 	f.Close()
@@ -106,14 +104,14 @@ func Pack(fs afero.Fs, fis []hugofs.FileMetaInfo) error {
 
 		f, err := meta.Open()
 		if err != nil {
-			return errors.Wrap(err, "npm pack: failed to open package file")
+			return fmt.Errorf("npm pack: failed to open package file: %w", err)
 		}
 		b.Add(meta.Module, f)
 		f.Close()
 	}
 
 	if b.Err() != nil {
-		return errors.Wrap(b.Err(), "npm pack: failed to build")
+		return fmt.Errorf("npm pack: failed to build: %w", b.Err())
 	}
 
 	// Replace the dependencies in the original template with the merged set.
@@ -136,11 +134,11 @@ func Pack(fs afero.Fs, fis []hugofs.FileMetaInfo) error {
 	encoder.SetEscapeHTML(false)
 	encoder.SetIndent("", strings.Repeat(" ", 2))
 	if err := encoder.Encode(b.originalPackageJSON); err != nil {
-		return errors.Wrap(err, "npm pack: failed to marshal JSON")
+		return fmt.Errorf("npm pack: failed to marshal JSON: %w", err)
 	}
 
 	if err := afero.WriteFile(fs, packageJSONName, packageJSONData.Bytes(), 0666); err != nil {
-		return errors.Wrap(err, "npm pack: failed to write package.json")
+		return fmt.Errorf("npm pack: failed to write package.json: %w", err)
 	}
 
 	return nil

navigation/menu.go

@@ -19,8 +19,6 @@ import (
 	"sort"
 	"strings"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/common/maps"
 	"github.com/gohugoio/hugo/common/types"
 	"github.com/gohugoio/hugo/compare"
@@ -190,7 +188,7 @@ func (m *MenuEntry) MarshallMap(ime map[string]any) error {
 	}
 
 	if err != nil {
-		return errors.Wrapf(err, "failed to marshal menu entry %q", m.KeyName())
+		return fmt.Errorf("failed to marshal menu entry %q: %w", m.KeyName(), err)
 	}
 
 	return nil

navigation/pagemenus.go

@@ -14,10 +14,11 @@
 package navigation
 
 import (
+	"fmt"
+
 	"github.com/gohugoio/hugo/common/maps"
 	"github.com/gohugoio/hugo/common/types"
 
-	"github.com/pkg/errors"
 	"github.com/spf13/cast"
 )
 
@@ -76,7 +77,7 @@ func PageMenusFromPage(p Page) (PageMenus, error) {
 	}
 
 	var wrapErr = func(err error) error {
-		return errors.Wrapf(err, "unable to process menus for page %q", p.Path())
+		return fmt.Errorf("unable to process menus for page %q: %w", p.Path(), err)
 	}
 
 	// Could be a structured menu entry

output/outputFormat.go

@@ -20,8 +20,6 @@ import (
 	"sort"
 	"strings"
 
-	"github.com/pkg/errors"
-
 	"github.com/mitchellh/mapstructure"
 
 	"github.com/gohugoio/hugo/media"
@@ -364,7 +362,7 @@ func decode(mediaTypes media.Types, input any, output *Format) error {
 							}
 							dataVal.SetMapIndex(key, reflect.ValueOf(mediaType))
 						default:
-							return nil, errors.Errorf("invalid output format configuration; wrong type for media type, expected string (e.g. text/html), got %T", vvi)
+							return nil, fmt.Errorf("invalid output format configuration; wrong type for media type, expected string (e.g. text/html), got %T", vvi)
 						}
 					}
 				}
@@ -379,7 +377,7 @@ func decode(mediaTypes media.Types, input any, output *Format) error {
 	}
 
 	if err = decoder.Decode(input); err != nil {
-		return errors.Wrap(err, "failed to decode output format configuration")
+		return fmt.Errorf("failed to decode output format configuration: %w", err)
 	}
 
 	return nil

parser/metadecoders/decoder.go

@@ -26,7 +26,6 @@ import (
 
 	xml "github.com/clbanning/mxj/v2"
 	toml "github.com/pelletier/go-toml/v2"
-	"github.com/pkg/errors"
 	"github.com/spf13/afero"
 	"github.com/spf13/cast"
 	jww "github.com/spf13/jwalterweatherman"
@@ -74,7 +73,7 @@ func (d Decoder) UnmarshalToMap(data []byte, f Format) (map[string]any, error) {
 func (d Decoder) UnmarshalFileToMap(fs afero.Fs, filename string) (map[string]any, error) {
 	format := FormatFromString(filename)
 	if format == "" {
-		return nil, errors.Errorf("%q is not a valid configuration format", filename)
+		return nil, fmt.Errorf("%q is not a valid configuration format", filename)
 	}
 
 	data, err := afero.ReadFile(fs, filename)
@@ -106,7 +105,7 @@ func (d Decoder) UnmarshalStringTo(data string, typ any) (any, error) {
 	case float64:
 		return cast.ToFloat64E(data)
 	default:
-		return nil, errors.Errorf("unmarshal: %T not supported", typ)
+		return nil, fmt.Errorf("unmarshal: %T not supported", typ)
 	}
 }
 
@@ -144,7 +143,7 @@ func (d Decoder) UnmarshalTo(data []byte, f Format, v any) error {
 		if err == nil {
 			xmlRootName, err := xmlRoot.Root()
 			if err != nil {
-				return toFileError(f, errors.Wrap(err, "failed to unmarshal XML"))
+				return toFileError(f, data, fmt.Errorf("failed to unmarshal XML: %w", err))
 			}
 			xmlValue = xmlRoot[xmlRootName].(map[string]any)
 		}
@@ -160,7 +159,7 @@ func (d Decoder) UnmarshalTo(data []byte, f Format, v any) error {
 	case YAML:
 		err = yaml.Unmarshal(data, v)
 		if err != nil {
-			return toFileError(f, errors.Wrap(err, "failed to unmarshal YAML"))
+			return toFileError(f, data, fmt.Errorf("failed to unmarshal YAML: %w", err))
 		}
 
 		// To support boolean keys, the YAML package unmarshals maps to
@@ -191,14 +190,14 @@ func (d Decoder) UnmarshalTo(data []byte, f Format, v any) error {
 		return d.unmarshalCSV(data, v)
 
 	default:
-		return errors.Errorf("unmarshal of format %q is not supported", f)
+		return fmt.Errorf("unmarshal of format %q is not supported", f)
 	}
 
 	if err == nil {
 		return nil
 	}
 
-	return toFileError(f, errors.Wrap(err, "unmarshal failed"))
+	return toFileError(f, data, fmt.Errorf("unmarshal failed: %w", err))
 }
 
 func (d Decoder) unmarshalCSV(data []byte, v any) error {
@@ -215,7 +214,7 @@ func (d Decoder) unmarshalCSV(data []byte, v any) error {
 	case *any:
 		*v.(*any) = records
 	default:
-		return errors.Errorf("CSV cannot be unmarshaled into %T", v)
+		return fmt.Errorf("CSV cannot be unmarshaled into %T", v)
 
 	}
 
@@ -260,8 +259,8 @@ func (d Decoder) unmarshalORG(data []byte, v any) error {
 	return nil
 }
 
-func toFileError(f Format, err error) error {
+func toFileError(f Format, data []byte, err error) error {
-	return herrors.ToFileError(string(f), err)
+	return herrors.NewFileError(fmt.Sprintf("_stream.%s", f), err).UpdateContent(bytes.NewReader(data), nil)
 }
 
 // stringifyMapKeys recurses into in and changes all instances of

parser/pageparser/pageparser.go

@@ -15,11 +15,11 @@ package pageparser
 
 import (
 	"bytes"
+	"fmt"
 	"io"
 	"io/ioutil"
 
 	"github.com/gohugoio/hugo/parser/metadecoders"
-	"github.com/pkg/errors"
 )
 
 // Result holds the parse result.
@@ -102,7 +102,7 @@ func ParseMain(r io.Reader, cfg Config) (Result, error) {
 func parseSection(r io.Reader, cfg Config, start stateFunc) (Result, error) {
 	b, err := ioutil.ReadAll(r)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to read page content")
+		return nil, fmt.Errorf("failed to read page content: %w", err)
 	}
 	return parseBytes(b, cfg, start)
 }

publisher/publisher.go

@@ -15,6 +15,7 @@ package publisher
 
 import (
 	"errors"
+	"fmt"
 	"io"
 	"net/url"
 	"sync/atomic"
@@ -104,7 +105,7 @@ func (p DestinationPublisher) Publish(d Descriptor) error {
 		defer bp.PutBuffer(b)
 
 		if err := transformers.Apply(b, d.Src); err != nil {
-			return err
+			return fmt.Errorf("failed to process %q: %w", d.TargetPath, err)
 		}
 
 		// This is now what we write to disk.

releaser/releaser.go

@@ -26,8 +26,9 @@ import (
 
 	"github.com/gohugoio/hugo/common/hexec"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/common/hugo"
-	"github.com/pkg/errors"
 )
 
 const commitPrefix = "releaser:"
@@ -217,7 +218,7 @@ func (r *ReleaseHandler) release(releaseNotesFile string) error {
 	cmd.Stderr = os.Stderr
 	err := cmd.Run()
 	if err != nil {
-		return errors.Wrap(err, "goreleaser failed")
+		return fmt.Errorf("goreleaser failed: %w", err)
 	}
 	return nil
 }

resources/image.go

@@ -38,9 +38,6 @@ import (
 
 	"github.com/gohugoio/hugo/resources/resource"
 
-	"github.com/pkg/errors"
-	_errors "github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/helpers"
 	"github.com/gohugoio/hugo/resources/images"
 
@@ -325,7 +322,7 @@ func (i *imageResource) doWithImageConfig(conf images.ImageConfig, f func(src im
 	})
 	if err != nil {
 		if i.root != nil && i.root.getFileInfo() != nil {
-			return nil, errors.Wrapf(err, "image %q", i.root.getFileInfo().Meta().Filename)
+			return nil, fmt.Errorf("image %q: %w", i.root.getFileInfo().Meta().Filename, err)
 		}
 	}
 	return img, nil
@@ -345,7 +342,7 @@ func (i *imageResource) decodeImageConfig(action, spec string) (images.ImageConf
 func (i *imageResource) DecodeImage() (image.Image, error) {
 	f, err := i.ReadSeekCloser()
 	if err != nil {
-		return nil, _errors.Wrap(err, "failed to open image for decode")
+		return nil, fmt.Errorf("failed to open image for decode: %w", err)
 	}
 	defer f.Close()
 	img, _, err := image.Decode(f)

resources/images/color.go

@@ -15,10 +15,9 @@ package images
 
 import (
 	"encoding/hex"
+	"fmt"
 	"image/color"
 	"strings"
-
-	"github.com/pkg/errors"
 )
 
 // AddColorToPalette adds c as the first color in p if not already there.
@@ -50,7 +49,7 @@ func hexStringToColor(s string) (color.Color, error) {
 	s = strings.TrimPrefix(s, "#")
 
 	if len(s) != 3 && len(s) != 6 {
-		return nil, errors.Errorf("invalid color code: %q", s)
+		return nil, fmt.Errorf("invalid color code: %q", s)
 	}
 
 	s = strings.ToLower(s)

resources/images/config.go

@@ -22,7 +22,7 @@ import (
 	"github.com/gohugoio/hugo/helpers"
 	"github.com/gohugoio/hugo/media"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/bep/gowebp/libwebp/webpoptions"
 
@@ -158,7 +158,7 @@ func DecodeConfig(m map[string]any) (ImagingConfig, error) {
 	if i.Cfg.Anchor != "" && i.Cfg.Anchor != smartCropIdentifier {
 		anchor, found := anchorPositions[i.Cfg.Anchor]
 		if !found {
-			return i, errors.Errorf("invalid anchor value %q in imaging config", i.Anchor)
+			return i, fmt.Errorf("invalid anchor value %q in imaging config", i.Anchor)
 		}
 		i.Anchor = anchor
 	} else {
@@ -263,7 +263,7 @@ func DecodeImageConfig(action, config string, defaults ImagingConfig, sourceForm
 			return c, errors.New("must provide Width or Height")
 		}
 	default:
-		return c, errors.Errorf("BUG: unknown action %q encountered while decoding image configuration", c.Action)
+		return c, fmt.Errorf("BUG: unknown action %q encountered while decoding image configuration", c.Action)
 	}
 
 	if c.FilterStr == "" {

resources/images/image.go

@@ -34,8 +34,9 @@ import (
 	"golang.org/x/image/bmp"
 	"golang.org/x/image/tiff"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/common/hugio"
-	"github.com/pkg/errors"
 )
 
 func NewImage(f Format, proc *ImageProcessor, img image.Image, s Spec) *Image {
@@ -163,7 +164,7 @@ func (i *Image) initConfig() error {
 	})
 
 	if err != nil {
-		return errors.Wrap(err, "failed to load image config")
+		return fmt.Errorf("failed to load image config: %w", err)
 	}
 
 	return nil
@@ -239,7 +240,7 @@ func (p *ImageProcessor) ApplyFiltersFromConfig(src image.Image, conf ImageConfi
 	case "fit":
 		filters = append(filters, gift.ResizeToFit(conf.Width, conf.Height, conf.Filter))
 	default:
-		return nil, errors.Errorf("unsupported action: %q", conf.Action)
+		return nil, fmt.Errorf("unsupported action: %q", conf.Action)
 	}
 
 	img, err := p.Filter(src, filters...)

resources/page/page_generate/generate_page_wrappers.go

@@ -20,7 +20,7 @@ import (
 	"path/filepath"
 	"reflect"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/gohugoio/hugo/common/maps"
 
@@ -55,15 +55,15 @@ var (
 
 func Generate(c *codegen.Inspector) error {
 	if err := generateMarshalJSON(c); err != nil {
-		return errors.Wrap(err, "failed to generate JSON marshaler")
+		return fmt.Errorf("failed to generate JSON marshaler: %w", err)
 	}
 
 	if err := generateDeprecatedWrappers(c); err != nil {
-		return errors.Wrap(err, "failed to generate deprecate wrappers")
+		return fmt.Errorf("failed to generate deprecate wrappers: %w", err)
 	}
 
 	if err := generateFileIsZeroWrappers(c); err != nil {
-		return errors.Wrap(err, "failed to generate file wrappers")
+		return fmt.Errorf("failed to generate file wrappers: %w", err)
 	}
 
 	return nil

resources/page/page_matcher.go

@@ -14,13 +14,13 @@
 package page
 
 import (
+	"fmt"
 	"path/filepath"
 	"strings"
 
 	"github.com/gohugoio/hugo/common/maps"
 	"github.com/gohugoio/hugo/hugofs/glob"
 	"github.com/mitchellh/mapstructure"
-	"github.com/pkg/errors"
 )
 
 // A PageMatcher can be used to match a Page with Glob patterns.
@@ -132,7 +132,7 @@ func DecodePageMatcher(m any, v *PageMatcher) error {
 			}
 		}
 		if !found {
-			return errors.Errorf("%q did not match a valid Page Kind", v.Kind)
+			return fmt.Errorf("%q did not match a valid Page Kind", v.Kind)
 		}
 	}
 

resources/page/pages_related.go

@@ -14,11 +14,11 @@
 package page
 
 import (
+	"fmt"
 	"sync"
 
 	"github.com/gohugoio/hugo/common/types"
 	"github.com/gohugoio/hugo/related"
-	"github.com/pkg/errors"
 	"github.com/spf13/cast"
 )
 
@@ -108,7 +108,7 @@ func (p Pages) withInvertedIndex(search func(idx *related.InvertedIndex) ([]rela
 
 	d, ok := p[0].(InternalDependencies)
 	if !ok {
-		return nil, errors.Errorf("invalid type %T in related search", p[0])
+		return nil, fmt.Errorf("invalid type %T in related search", p[0])
 	}
 
 	cache := d.GetRelatedDocsHandler()

resources/page/permalinks.go

@@ -23,7 +23,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/gohugoio/hugo/helpers"
 )

resources/resource.go

@@ -31,7 +31,7 @@ import (
 	"github.com/gohugoio/hugo/media"
 	"github.com/gohugoio/hugo/source"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/gohugoio/hugo/common/hugio"
 	"github.com/gohugoio/hugo/common/maps"
@@ -633,7 +633,7 @@ func (fi *resourceFileInfo) hash() (string, error) {
 		var f hugio.ReadSeekCloser
 		f, err = fi.ReadSeekCloser()
 		if err != nil {
-			err = errors.Wrap(err, "failed to open source file")
+			err = fmt.Errorf("failed to open source file: %w", err)
 			return
 		}
 		defer f.Close()

resources/resource_factories/create/remote.go

@@ -16,6 +16,7 @@ package create
 import (
 	"bufio"
 	"bytes"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"mime"
@@ -34,7 +35,6 @@ import (
 	"github.com/gohugoio/hugo/resources"
 	"github.com/gohugoio/hugo/resources/resource"
 	"github.com/mitchellh/mapstructure"
-	"github.com/pkg/errors"
 )
 
 type HTTPError struct {
@@ -77,7 +77,7 @@ func toHTTPError(err error, res *http.Response) *HTTPError {
 func (c *Client) FromRemote(uri string, optionsm map[string]any) (resource.Resource, error) {
 	rURL, err := url.Parse(uri)
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to parse URL for resource %s", uri)
+		return nil, fmt.Errorf("failed to parse URL for resource %s: %w", uri, err)
 	}
 
 	resourceID := calculateResourceID(uri, optionsm)
@@ -85,7 +85,7 @@ func (c *Client) FromRemote(uri string, optionsm map[string]any) (resource.Resou
 	_, httpResponse, err := c.cacheGetResource.GetOrCreate(resourceID, func() (io.ReadCloser, error) {
 		options, err := decodeRemoteOptions(optionsm)
 		if err != nil {
-			return nil, errors.Wrapf(err, "failed to decode options for resource %s", uri)
+			return nil, fmt.Errorf("failed to decode options for resource %s: %w", uri, err)
 		}
 		if err := c.validateFromRemoteArgs(uri, options); err != nil {
 			return nil, err
@@ -93,7 +93,7 @@ func (c *Client) FromRemote(uri string, optionsm map[string]any) (resource.Resou
 
 		req, err := http.NewRequest(options.Method, uri, options.BodyReader())
 		if err != nil {
-			return nil, errors.Wrapf(err, "failed to create request for resource %s", uri)
+			return nil, fmt.Errorf("failed to create request for resource %s: %w", uri, err)
 		}
 		addDefaultHeaders(req)
 
@@ -113,7 +113,7 @@ func (c *Client) FromRemote(uri string, optionsm map[string]any) (resource.Resou
 
 		if res.StatusCode != http.StatusNotFound {
 			if res.StatusCode < 200 || res.StatusCode > 299 {
-				return nil, toHTTPError(errors.Errorf("failed to fetch remote resource: %s", http.StatusText(res.StatusCode)), res)
+				return nil, toHTTPError(fmt.Errorf("failed to fetch remote resource: %s", http.StatusText(res.StatusCode)), res)
 
 			}
 		}
@@ -137,7 +137,7 @@ func (c *Client) FromRemote(uri string, optionsm map[string]any) (resource.Resou
 
 	body, err := ioutil.ReadAll(res.Body)
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to read remote resource %q", uri)
+		return nil, fmt.Errorf("failed to read remote resource %q: %w", uri, err)
 	}
 
 	filename := path.Base(rURL.Path)
@@ -172,7 +172,7 @@ func (c *Client) FromRemote(uri string, optionsm map[string]any) (resource.Resou
 	// Now resolve the media type primarily using the content.
 	mediaType := media.FromContent(c.rs.MediaTypes, extensionHints, body)
 	if mediaType.IsZero() {
-		return nil, errors.Errorf("failed to resolve media type for remote resource %q", uri)
+		return nil, fmt.Errorf("failed to resolve media type for remote resource %q", uri)
 	}
 
 	resourceID = filename[:len(filename)-len(path.Ext(filename))] + "_" + resourceID + mediaType.FirstSuffix.FullSuffix

resources/resource_metadata.go

@@ -22,7 +22,6 @@ import (
 	"github.com/gohugoio/hugo/media"
 	"github.com/gohugoio/hugo/resources/resource"
 
-	"github.com/pkg/errors"
 	"github.com/spf13/cast"
 
 	"github.com/gohugoio/hugo/common/maps"
@@ -85,7 +84,7 @@ func AssignMetadata(metadata []map[string]any, resources ...resource.Resource) e
 
 			glob, err := glob.GetGlob(srcKey)
 			if err != nil {
-				return errors.Wrap(err, "failed to match resource with metadata")
+				return fmt.Errorf("failed to match resource with metadata: %w", err)
 			}
 
 			match := glob.Match(resourceSrcKey)

resources/resource_transformers/babel/babel.go

@@ -15,6 +15,7 @@ package babel
 
 import (
 	"bytes"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"os"
@@ -34,7 +35,6 @@ import (
 	"github.com/gohugoio/hugo/common/herrors"
 	"github.com/gohugoio/hugo/resources"
 	"github.com/gohugoio/hugo/resources/resource"
-	"github.com/pkg/errors"
 )
 
 // Options from https://babeljs.io/docs/en/options
@@ -141,7 +141,7 @@ func (t *babelTransformation) Transform(ctx *resources.ResourceTransformationCtx
 		configFile = t.rs.BaseFs.ResolveJSConfigFile(configFile)
 		if configFile == "" && t.options.Config != "" {
 			// Only fail if the user specified config file is not found.
-			return errors.Errorf("babel config %q not found:", configFile)
+			return fmt.Errorf("babel config %q not found:", configFile)
 		}
 	}
 
@@ -203,7 +203,7 @@ func (t *babelTransformation) Transform(ctx *resources.ResourceTransformationCtx
 		if hexec.IsNotFound(err) {
 			return herrors.ErrFeatureNotAvailable
 		}
-		return errors.Wrap(err, errBuf.String())
+		return fmt.Errorf(errBuf.String()+": %w", err)
 	}
 
 	content, err := ioutil.ReadAll(compileOutput)

resources/resource_transformers/integrity/integrity.go

@@ -19,14 +19,13 @@ import (
 	"crypto/sha512"
 	"encoding/base64"
 	"encoding/hex"
+	"fmt"
 	"hash"
 	"html/template"
 	"io"
 
 	"github.com/gohugoio/hugo/resources/internal"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/resources"
 	"github.com/gohugoio/hugo/resources/resource"
 )
@@ -92,7 +91,7 @@ func newHash(algo string) (hash.Hash, error) {
 	case "sha512":
 		return sha512.New(), nil
 	default:
-		return nil, errors.Errorf("unsupported crypto algo: %q, use either md5, sha256, sha384 or sha512", algo)
+		return nil, fmt.Errorf("unsupported crypto algo: %q, use either md5, sha256, sha384 or sha512", algo)
 	}
 }
 

resources/resource_transformers/js/build.go

@@ -22,13 +22,14 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/spf13/afero"
 
 	"github.com/gohugoio/hugo/hugofs"
 
 	"github.com/gohugoio/hugo/common/herrors"
+	"github.com/gohugoio/hugo/common/text"
 
 	"github.com/gohugoio/hugo/hugolib/filesystems"
 	"github.com/gohugoio/hugo/media"
@@ -109,13 +110,13 @@ func (t *buildTransformation) Transform(ctx *resources.ResourceTransformationCtx
 		for i, ext := range opts.Inject {
 			impPath := filepath.FromSlash(ext)
 			if filepath.IsAbs(impPath) {
-				return errors.Errorf("inject: absolute paths not supported, must be relative to /assets")
+				return fmt.Errorf("inject: absolute paths not supported, must be relative to /assets")
 			}
 
 			m := resolveComponentInAssets(t.c.rs.Assets.Fs, impPath)
 
 			if m == nil {
-				return errors.Errorf("inject: file %q not found", ext)
+				return fmt.Errorf("inject: file %q not found", ext)
 			}
 
 			opts.Inject[i] = m.Filename
@@ -157,10 +158,12 @@ func (t *buildTransformation) Transform(ctx *resources.ResourceTransformationCtx
 			}
 
 			if err == nil {
-				fe := herrors.NewFileError("js", 0, loc.Line, loc.Column, errors.New(msg.Text))
+				fe := herrors.NewFileError(path, errors.New(msg.Text)).
-				err, _ := herrors.WithFileContext(fe, path, f, herrors.SimpleLineMatcher)
+					UpdatePosition(text.Position{Offset: -1, LineNumber: loc.Line, ColumnNumber: loc.Column}).
+					UpdateContent(f, herrors.SimpleLineMatcher)
+
 				f.Close()
-				return err
+				return fe
 			}
 
 			return fmt.Errorf("%s", msg.Text)

resources/resource_transformers/js/options.go

@@ -21,7 +21,6 @@ import (
 	"strings"
 
 	"github.com/gohugoio/hugo/common/maps"
-	"github.com/pkg/errors"
 	"github.com/spf13/afero"
 
 	"github.com/evanw/esbuild/pkg/api"
@@ -251,7 +250,7 @@ func createBuildPlugins(c *Client, opts Options) ([]api.Plugin, error) {
 				func(args api.OnLoadArgs) (api.OnLoadResult, error) {
 					b, err := ioutil.ReadFile(args.Path)
 					if err != nil {
-						return api.OnLoadResult{}, errors.Wrapf(err, "failed to read %q", args.Path)
+						return api.OnLoadResult{}, fmt.Errorf("failed to read %q: %w", args.Path, err)
 					}
 					c := string(b)
 					return api.OnLoadResult{
@@ -274,7 +273,7 @@ func createBuildPlugins(c *Client, opts Options) ([]api.Plugin, error) {
 
 	b, err := json.Marshal(params)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to marshal params")
+		return nil, fmt.Errorf("failed to marshal params: %w", err)
 	}
 	bs := string(b)
 	paramsPlugin := api.Plugin{

resources/resource_transformers/postcss/postcss.go

@@ -17,6 +17,7 @@ import (
 	"bytes"
 	"crypto/sha256"
 	"encoding/hex"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"path"
@@ -36,8 +37,9 @@ import (
 	"github.com/spf13/afero"
 	"github.com/spf13/cast"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/hugofs"
-	"github.com/pkg/errors"
 
 	"github.com/mitchellh/mapstructure"
 
@@ -161,7 +163,7 @@ func (t *postcssTransformation) Transform(ctx *resources.ResourceTransformationC
 		configFile = t.rs.BaseFs.ResolveJSConfigFile(configFile)
 		if configFile == "" && t.options.Config != "" {
 			// Only fail if the user specified config file is not found.
-			return errors.Errorf("postcss config %q not found:", configFile)
+			return fmt.Errorf("postcss config %q not found:", configFile)
 		}
 	}
 
@@ -388,15 +390,9 @@ func (imp *importResolver) toFileError(output string) error {
 	if err != nil {
 		return inErr
 	}
+
 	realFilename := fi.(hugofs.FileMetaInfo).Meta().Filename
 
-	ferr := herrors.NewFileError("css", -1, file.Offset+1, 1, inErr)
+	return herrors.NewFileErrorFromFile(inErr, file.Filename, realFilename, hugofs.Os, herrors.SimpleLineMatcher)
 
-	werr, ok := herrors.WithFileContextForFile(ferr, realFilename, file.Filename, imp.fs, herrors.SimpleLineMatcher)
-
-	if !ok {
-		return ferr
-	}
-
-	return werr
 }

resources/resource_transformers/templates/execute_as_template.go

@@ -15,12 +15,13 @@
 package templates
 
 import (
+	"fmt"
+
 	"github.com/gohugoio/hugo/helpers"
 	"github.com/gohugoio/hugo/resources"
 	"github.com/gohugoio/hugo/resources/internal"
 	"github.com/gohugoio/hugo/resources/resource"
 	"github.com/gohugoio/hugo/tpl"
-	"github.com/pkg/errors"
 )
 
 // Client contains methods to perform template processing of Resource objects.
@@ -55,7 +56,7 @@ func (t *executeAsTemplateTransform) Transform(ctx *resources.ResourceTransforma
 	tplStr := helpers.ReaderToString(ctx.From)
 	templ, err := t.t.TextTmpl().Parse(ctx.InPath, tplStr)
 	if err != nil {
-		return errors.Wrapf(err, "failed to parse Resource %q as Template:", ctx.InPath)
+		return fmt.Errorf("failed to parse Resource %q as Template:: %w", ctx.InPath, err)
 	}
 
 	ctx.OutPath = t.targetPath

resources/resource_transformers/tocss/dartsass/transform.go

@@ -120,18 +120,8 @@ func (t *transform) Transform(ctx *resources.ResourceTransformationCtx) error {
 				return m.Offset+len(m.Line) >= start.Offset && strings.Contains(m.Line, context)
 			}
 
-			ferr, ok := herrors.WithFileContextForFile(
+			return herrors.NewFileErrorFromFile(sassErr, filename, filename, hugofs.Os, offsetMatcher)
-				herrors.NewFileError("scss", -1, -1, start.Column, sassErr),
-				filename,
-				filename,
-				hugofs.Os,
-				offsetMatcher)
 
-			if !ok {
-				return sassErr
-			}
-
-			return ferr
 		}
 		return err
 	}

resources/resource_transformers/tocss/scss/tocss.go

@@ -28,7 +28,6 @@ import (
 	"github.com/gohugoio/hugo/hugofs"
 	"github.com/gohugoio/hugo/media"
 	"github.com/gohugoio/hugo/resources"
-	"github.com/pkg/errors"
 )
 
 // Used in tests. This feature requires Hugo to be built with the extended tag.
@@ -172,7 +171,7 @@ func (c *Client) toCSS(options libsass.Options, dst io.Writer, src io.Reader) (l
 	in := helpers.ReaderToString(src)
 
 	// See https://github.com/gohugoio/hugo/issues/7059
-	// We need to preserver the regular CSS imports. This is by far
+	// We need to preserve the regular CSS imports. This is by far
 	// a perfect solution, and only works for the main entry file, but
 	// that should cover many use cases, e.g. using SCSS as a preprocessor
 	// for Tailwind.
@@ -181,7 +180,7 @@ func (c *Client) toCSS(options libsass.Options, dst io.Writer, src io.Reader) (l
 
 	res, err = transpiler.Execute(in)
 	if err != nil {
-		return res, errors.Wrap(err, "SCSS processing failed")
+		return res, fmt.Errorf("SCSS processing failed: %w", err)
 	}
 
 	out := res.CSS

resources/transform.go

@@ -24,8 +24,6 @@ import (
 
 	"github.com/gohugoio/hugo/common/paths"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/resources/images"
 	"github.com/gohugoio/hugo/resources/images/exif"
 	"github.com/spf13/afero"
@@ -431,10 +429,10 @@ func (r *resourceAdapter) transform(publish, setContent bool) error {
 					errMsg = ". You need to install Babel, see https://gohugo.io/hugo-pipes/babel/"
 				}
 
-				return errors.Wrap(err, msg+errMsg)
+				return fmt.Errorf(msg+errMsg+": %w", err)
 			}
 
-			return errors.Wrap(err, msg)
+			return fmt.Errorf(msg+": %w", err)
 		}
 
 		var tryFileCache bool
@@ -461,7 +459,7 @@ func (r *resourceAdapter) transform(publish, setContent bool) error {
 				if err != nil {
 					return newErr(err)
 				}
-				return newErr(errors.Errorf("resource %q not found in file cache", key))
+				return newErr(fmt.Errorf("resource %q not found in file cache", key))
 			}
 			transformedContentr = f
 			updates.sourceFs = cache.fileCache.Fs

source/fileInfo.go

@@ -14,6 +14,7 @@
 package source
 
 import (
+	"fmt"
 	"path/filepath"
 	"strings"
 	"sync"
@@ -22,8 +23,6 @@ import (
 
 	"github.com/gohugoio/hugo/hugofs/files"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/common/hugio"
 
 	"github.com/gohugoio/hugo/hugofs"
@@ -244,11 +243,11 @@ func (sp *SourceSpec) NewFileInfo(fi hugofs.FileMetaInfo) (*FileInfo, error) {
 	relPath := m.Path
 
 	if relPath == "" {
-		return nil, errors.Errorf("no Path provided by %v (%T)", m, m.Fs)
+		return nil, fmt.Errorf("no Path provided by %v (%T)", m, m.Fs)
 	}
 
 	if filename == "" {
-		return nil, errors.Errorf("no Filename provided by %v (%T)", m, m.Fs)
+		return nil, fmt.Errorf("no Filename provided by %v (%T)", m, m.Fs)
 	}
 
 	relDir := filepath.Dir(relPath)

source/filesystem.go

@@ -14,11 +14,10 @@
 package source
 
 import (
+	"fmt"
 	"path/filepath"
 	"sync"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/hugofs"
 )
 
@@ -49,7 +48,7 @@ func (f *Filesystem) Files() ([]File, error) {
 	f.filesInit.Do(func() {
 		err := f.captureFiles()
 		if err != nil {
-			f.filesInitErr = errors.Wrap(err, "capture files")
+			f.filesInitErr = fmt.Errorf("capture files: %w", err)
 		}
 	})
 	return f.files, f.filesInitErr

tpl/collections/collections.go

@@ -24,12 +24,13 @@ import (
 	"strings"
 	"time"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/common/collections"
 	"github.com/gohugoio/hugo/common/maps"
 	"github.com/gohugoio/hugo/common/types"
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/helpers"
-	"github.com/pkg/errors"
 	"github.com/spf13/cast"
 )
 
@@ -736,7 +737,7 @@ func (ns *Namespace) Uniq(seq any) (any, error) {
 	case reflect.Array:
 		slice = reflect.MakeSlice(reflect.SliceOf(v.Type().Elem()), 0, 0)
 	default:
-		return nil, errors.Errorf("type %T not supported", seq)
+		return nil, fmt.Errorf("type %T not supported", seq)
 	}
 
 	seen := make(map[any]bool)

tpl/collections/merge.go

@@ -14,13 +14,14 @@
 package collections
 
 import (
+	"fmt"
 	"reflect"
 	"strings"
 
 	"github.com/gohugoio/hugo/common/hreflect"
 	"github.com/gohugoio/hugo/common/maps"
 
-	"github.com/pkg/errors"
+	"errors"
 )
 
 // Merge creates a copy of the final parameter and merges the preceding
@@ -49,7 +50,7 @@ func (ns *Namespace) merge(src, dst any) (any, error) {
 	vdst, vsrc := reflect.ValueOf(dst), reflect.ValueOf(src)
 
 	if vdst.Kind() != reflect.Map {
-		return nil, errors.Errorf("destination must be a map, got %T", dst)
+		return nil, fmt.Errorf("destination must be a map, got %T", dst)
 	}
 
 	if !hreflect.IsTruthfulValue(vsrc) {
@@ -57,11 +58,11 @@ func (ns *Namespace) merge(src, dst any) (any, error) {
 	}
 
 	if vsrc.Kind() != reflect.Map {
-		return nil, errors.Errorf("source must be a map, got %T", src)
+		return nil, fmt.Errorf("source must be a map, got %T", src)
 	}
 
 	if vsrc.Type().Key() != vdst.Type().Key() {
-		return nil, errors.Errorf("incompatible map types, got %T to %T", src, dst)
+		return nil, fmt.Errorf("incompatible map types, got %T to %T", src, dst)
 	}
 
 	return mergeMap(vdst, vsrc).Interface(), nil

tpl/collections/reflect_helpers.go

@@ -18,8 +18,9 @@ import (
 	"reflect"
 	"time"
 
+	"errors"
+
 	"github.com/mitchellh/hashstructure"
-	"github.com/pkg/errors"
 )
 
 var (
@@ -103,7 +104,7 @@ func convertValue(v reflect.Value, to reflect.Type) (reflect.Value, error) {
 	case isNumber(kind):
 		return convertNumber(v, kind)
 	default:
-		return reflect.Value{}, errors.Errorf("%s is not assignable to %s", v.Type(), to)
+		return reflect.Value{}, fmt.Errorf("%s is not assignable to %s", v.Type(), to)
 	}
 }
 

tpl/collections/symdiff.go

@@ -16,8 +16,6 @@ package collections
 import (
 	"fmt"
 	"reflect"
-
-	"github.com/pkg/errors"
 )
 
 // SymDiff returns the symmetric difference of s1 and s2.
@@ -54,7 +52,7 @@ func (ns *Namespace) SymDiff(s2, s1 any) (any, error) {
 				if ids1[key] != ids2[key] {
 					v, err := convertValue(ev, sliceElemType)
 					if err != nil {
-						return nil, errors.WithMessage(err, "symdiff: failed to convert value")
+						return nil, fmt.Errorf("symdiff: failed to convert value: %w", err)
 					}
 					slice = reflect.Append(slice, v)
 				}

tpl/data/data.go

@@ -20,6 +20,7 @@ import (
 	"encoding/csv"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"net/http"
 	"strings"
 
@@ -35,7 +36,6 @@ import (
 
 	"github.com/gohugoio/hugo/cache/filecache"
 	"github.com/gohugoio/hugo/deps"
-	_errors "github.com/pkg/errors"
 )
 
 // New returns a new instance of the data-namespaced template functions.
@@ -69,7 +69,7 @@ func (ns *Namespace) GetCSV(sep string, args ...any) (d [][]string, err error) {
 
 	unmarshal := func(b []byte) (bool, error) {
 		if d, err = parseCSV(b, sep); err != nil {
-			err = _errors.Wrapf(err, "failed to parse CSV file %s", url)
+			err = fmt.Errorf("failed to parse CSV file %s: %w", url, err)
 
 			return true, err
 		}
@@ -80,7 +80,7 @@ func (ns *Namespace) GetCSV(sep string, args ...any) (d [][]string, err error) {
 	var req *http.Request
 	req, err = http.NewRequest("GET", url, nil)
 	if err != nil {
-		return nil, _errors.Wrapf(err, "failed to create request for getCSV for resource %s", url)
+		return nil, fmt.Errorf("failed to create request for getCSV for resource %s: %w", url, err)
 	}
 
 	// Add custom user headers.
@@ -109,7 +109,7 @@ func (ns *Namespace) GetJSON(args ...any) (any, error) {
 
 	req, err := http.NewRequest("GET", url, nil)
 	if err != nil {
-		return nil, _errors.Wrapf(err, "Failed to create request for getJSON resource %s", url)
+		return nil, fmt.Errorf("Failed to create request for getJSON resource %s: %w", url, err)
 	}
 
 	unmarshal := func(b []byte) (bool, error) {

tpl/data/resources.go

@@ -15,14 +15,13 @@ package data
 
 import (
 	"bytes"
+	"fmt"
 	"io/ioutil"
 	"net/http"
 	"net/url"
 	"path/filepath"
 	"time"
 
-	"github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/cache/filecache"
 
 	"github.com/gohugoio/hugo/config"
@@ -70,7 +69,7 @@ func (ns *Namespace) getRemote(cache *filecache.Cache, unmarshal func([]byte) (b
 			res.Body.Close()
 
 			if isHTTPError(res) {
-				return nil, errors.Errorf("Failed to retrieve remote file: %s, body: %q", http.StatusText(res.StatusCode), b)
+				return nil, fmt.Errorf("Failed to retrieve remote file: %s, body: %q", http.StatusText(res.StatusCode), b)
 			}
 
 			retry, err = unmarshal(b)

tpl/images/images.go

@@ -18,7 +18,7 @@ import (
 	"image"
 	"sync"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/gohugoio/hugo/resources/images"
 

tpl/internal/resourcehelpers/helpers.go

@@ -19,8 +19,6 @@ import (
 	"errors"
 	"fmt"
 
-	_errors "github.com/pkg/errors"
-
 	"github.com/gohugoio/hugo/common/maps"
 	"github.com/gohugoio/hugo/resources"
 )
@@ -64,7 +62,7 @@ func ResolveArgs(args []any) (resources.ResourceTransformer, map[string]any, err
 
 	m, err := maps.ToStringMapE(args[0])
 	if err != nil {
-		return nil, nil, _errors.Wrap(err, "invalid options type")
+		return nil, nil, fmt.Errorf("invalid options type: %w", err)
 	}
 
 	return r, m, nil

tpl/lang/lang.go

@@ -20,9 +20,10 @@ import (
 	"strconv"
 	"strings"
 
+	"errors"
+
 	"github.com/gohugoio/locales"
 	translators "github.com/gohugoio/localescompressed"
-	"github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/common/hreflect"
 	"github.com/gohugoio/hugo/deps"
@@ -49,7 +50,7 @@ func (ns *Namespace) Translate(id any, args ...any) (string, error) {
 
 	if len(args) > 0 {
 		if len(args) > 1 {
-			return "", errors.Errorf("wrong number of arguments, expecting at most 2, got %d", len(args)+1)
+			return "", fmt.Errorf("wrong number of arguments, expecting at most 2, got %d", len(args)+1)
 		}
 		templateData = args[0]
 	}

tpl/openapi/openapi3/openapi3.go

@@ -14,11 +14,12 @@
 package openapi3
 
 import (
+	"fmt"
 	"io/ioutil"
 
 	gyaml "github.com/ghodss/yaml"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	kopenapi3 "github.com/getkin/kin-openapi/openapi3"
 	"github.com/gohugoio/hugo/cache/namedmemcache"
@@ -57,7 +58,7 @@ func (ns *Namespace) Unmarshal(r resource.UnmarshableResource) (*kopenapi3.T, er
 	v, err := ns.cache.GetOrCreate(key, func() (any, error) {
 		f := metadecoders.FormatFromMediaType(r.MediaType())
 		if f == "" {
-			return nil, errors.Errorf("MIME %q not supported", r.MediaType())
+			return nil, fmt.Errorf("MIME %q not supported", r.MediaType())
 		}
 
 		reader, err := r.ReadSeekCloser()

tpl/resources/resources.go

@@ -20,8 +20,9 @@ import (
 
 	"github.com/gohugoio/hugo/common/herrors"
 
+	"errors"
+
 	"github.com/gohugoio/hugo/common/maps"
-	"github.com/pkg/errors"
 
 	"github.com/gohugoio/hugo/tpl/internal/resourcehelpers"
 
@@ -162,7 +163,7 @@ func (ns *Namespace) GetRemote(args ...any) resource.Resource {
 		case *create.HTTPError:
 			return resources.NewErrorResource(resource.NewResourceError(v, v.Data))
 		default:
-			return resources.NewErrorResource(resource.NewResourceError(errors.Wrap(err, "error calling resources.GetRemote"), make(map[string]any)))
+			return resources.NewErrorResource(resource.NewResourceError(fmt.Errorf("error calling resources.GetRemote: %w", err), make(map[string]any)))
 		}
 
 	}
@@ -354,7 +355,7 @@ func (ns *Namespace) ToCSS(args ...any) (resource.Resource, error) {
 			case transpilerDart, transpilerLibSass:
 				transpiler = cast.ToString(t)
 			default:
-				return nil, errors.Errorf("unsupported transpiler %q; valid values are %q or %q", t, transpilerLibSass, transpilerDart)
+				return nil, fmt.Errorf("unsupported transpiler %q; valid values are %q or %q", t, transpilerLibSass, transpilerDart)
 			}
 		}
 	}