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

1 files changed, 2 insertions, 4 deletions

diff --git a/output/outputFormat.go b/output/outputFormat.go
index 34bec9911..1f1556eaf 100644
--- a/output/outputFormat.go
+++ b/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