Ignore useless error message "broken pipe" (#30801) (#30842)

Backport #30801 by wxiaoguang

Fix #30792

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
(cherry picked from commit ab2ef1ae49bc5e81d0debac85aee687a64fde8b3)

routers/api/packages/maven/maven.go

@@ -143,9 +143,7 @@ func serveMavenMetadata(ctx *context.Context, params parameters) {
 	ctx.Resp.Header().Set("Content-Length", strconv.Itoa(len(xmlMetadataWithHeader)))
 	ctx.Resp.Header().Set("Content-Type", contentTypeXML)
 
-	if _, err := ctx.Resp.Write(xmlMetadataWithHeader); err != nil {
-		log.Error("write bytes failed: %v", err)
-	}
+	_, _ = ctx.Resp.Write(xmlMetadataWithHeader)
 }
 
 func servePackageFile(ctx *context.Context, params parameters, serveContent bool) {

services/context/base.go

@@ -234,9 +234,7 @@ func (b *Base) plainTextInternal(skip, status int, bs []byte) {
 	b.Resp.Header().Set("Content-Type", "text/plain;charset=utf-8")
 	b.Resp.Header().Set("X-Content-Type-Options", "nosniff")
 	b.Resp.WriteHeader(status)
-	if _, err := b.Resp.Write(bs); err != nil {
-		log.ErrorWithSkip(skip, "plainTextInternal (status=%d): write bytes failed: %v", status, err)
-	}
+	_, _ = b.Resp.Write(bs)
 }
 
 // PlainTextBytes renders bytes as plain text

services/context/context_response.go

@@ -13,6 +13,7 @@ import (
 	"path"
 	"strconv"
 	"strings"
+	"syscall"
 	"time"
 
 	user_model "code.gitea.io/gitea/models/user"
@@ -77,7 +78,7 @@ func (ctx *Context) HTML(status int, name base.TplName) {
 	}
 
 	err := ctx.Render.HTML(ctx.Resp, status, string(name), ctx.Data, ctx.TemplateContext)
-	if err == nil {
+	if err == nil || errors.Is(err, syscall.EPIPE) {
 		return
 	}