chore: Remove BreakWriter

- Introduced in 99efa02edf and removed in 6e22605793.

.deadcode-out

@@ -83,9 +83,6 @@ code.gitea.io/gitea/modules/cache
 	WithNoCacheContext
 	RemoveContextData
 
-code.gitea.io/gitea/modules/charset
-	BreakWriter.Write
-
 code.gitea.io/gitea/modules/emoji
 	ReplaceCodes
 

modules/charset/breakwriter.go

@@ -1,43 +0,0 @@
-// Copyright 2022 The Gitea Authors. All rights reserved.
-// SPDX-License-Identifier: MIT
-
-package charset
-
-import (
-	"bytes"
-	"io"
-)
-
-// BreakWriter wraps an io.Writer to always write '\n' as '<br>'
-type BreakWriter struct {
-	io.Writer
-}
-
-// Write writes the provided byte slice transparently replacing '\n' with '<br>'
-func (b *BreakWriter) Write(bs []byte) (n int, err error) {
-	pos := 0
-	for pos < len(bs) {
-		idx := bytes.IndexByte(bs[pos:], '\n')
-		if idx < 0 {
-			wn, err := b.Writer.Write(bs[pos:])
-			return n + wn, err
-		}
-
-		if idx > 0 {
-			wn, err := b.Writer.Write(bs[pos : pos+idx])
-			n += wn
-			if err != nil {
-				return n, err
-			}
-		}
-
-		if _, err = b.Writer.Write([]byte("<br>")); err != nil {
-			return n, err
-		}
-		pos += idx + 1
-
-		n++
-	}
-
-	return n, err
-}

modules/charset/breakwriter_test.go

@@ -1,68 +0,0 @@
-// Copyright 2022 The Gitea Authors. All rights reserved.
-// SPDX-License-Identifier: MIT
-
-package charset
-
-import (
-	"strings"
-	"testing"
-)
-
-func TestBreakWriter_Write(t *testing.T) {
-	tests := []struct {
-		name    string
-		kase    string
-		expect  string
-		wantErr bool
-	}{
-		{
-			name:   "noline",
-			kase:   "abcdefghijklmnopqrstuvwxyz",
-			expect: "abcdefghijklmnopqrstuvwxyz",
-		},
-		{
-			name:   "endline",
-			kase:   "abcdefghijklmnopqrstuvwxyz\n",
-			expect: "abcdefghijklmnopqrstuvwxyz<br>",
-		},
-		{
-			name:   "startline",
-			kase:   "\nabcdefghijklmnopqrstuvwxyz",
-			expect: "<br>abcdefghijklmnopqrstuvwxyz",
-		},
-		{
-			name:   "onlyline",
-			kase:   "\n\n\n",
-			expect: "<br><br><br>",
-		},
-		{
-			name:   "empty",
-			kase:   "",
-			expect: "",
-		},
-		{
-			name:   "midline",
-			kase:   "\nabc\ndefghijkl\nmnopqrstuvwxy\nz",
-			expect: "<br>abc<br>defghijkl<br>mnopqrstuvwxy<br>z",
-		},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			buf := &strings.Builder{}
-			b := &BreakWriter{
-				Writer: buf,
-			}
-			n, err := b.Write([]byte(tt.kase))
-			if (err != nil) != tt.wantErr {
-				t.Errorf("BreakWriter.Write() error = %v, wantErr %v", err, tt.wantErr)
-				return
-			}
-			if n != len(tt.kase) {
-				t.Errorf("BreakWriter.Write() = %v, want %v", n, len(tt.kase))
-			}
-			if buf.String() != tt.expect {
-				t.Errorf("BreakWriter.Write() wrote %q, want %v", buf.String(), tt.expect)
-			}
-		})
-	}
-}