From 8464040d176b68308a9301e5565567009f6e8a2f Mon Sep 17 00:00:00 2001
From: Tomas Votruba <tomas.vot@gmail.com>
Date: Mon, 5 Oct 2026 14:17:01 +0200
Subject: [PATCH] Do not add a trailing newline to a file ending in inline HTML

php-cs-fixer's SingleBlankLineAtEof skips a file whose last token is inline
HTML, a close tag or an open tag, so a template ending in "</html>" keeps no
final newline. blink appended one unconditionally; now it leaves such endings
alone.
---
 blink/internal/fixer/rules/rules_test.go               | 8 ++++++++
 blink/internal/fixer/rules/single_blank_line_at_eof.go | 5 +++++
 2 files changed, 13 insertions(+)

diff --git a/blink/internal/fixer/rules/rules_test.go b/blink/internal/fixer/rules/rules_test.go
index 7fa2df6fe9..ed071534e3 100644
--- a/blink/internal/fixer/rules/rules_test.go
+++ b/blink/internal/fixer/rules/rules_test.go
@@ -381,4 +381,12 @@ func TestSingleBlankLineAtEndOfFile(t *testing.T) {
 	if _, changed := apply(t, SingleBlankLineAtEndOfFile{}, "<?php echo 1;\n"); changed {
 		t.Fatal("single newline should not change")
 	}
+	// a file ending in inline HTML gets no trailing newline added (php-cs-fixer
+	// skips T_INLINE_HTML / T_CLOSE_TAG endings)
+	if _, changed := apply(t, SingleBlankLineAtEndOfFile{}, "<?php echo 1; ?>\n</html>"); changed {
+		t.Fatal("inline-HTML ending must be left alone")
+	}
+	if _, changed := apply(t, SingleBlankLineAtEndOfFile{}, "<?php echo 1; ?>"); changed {
+		t.Fatal("close-tag ending must be left alone")
+	}
 }
diff --git a/blink/internal/fixer/rules/single_blank_line_at_eof.go b/blink/internal/fixer/rules/single_blank_line_at_eof.go
index a48c0d5782..a7ba11a34e 100644
--- a/blink/internal/fixer/rules/single_blank_line_at_eof.go
+++ b/blink/internal/fixer/rules/single_blank_line_at_eof.go
@@ -26,6 +26,11 @@ func (SingleBlankLineAtEndOfFile) Fix(s *tokens.Stream) bool {
 	}
 	last := s.Len() - 1
 	t := s.At(last)
+	// a file ending in inline HTML or a tag is left alone (php-cs-fixer skips
+	// T_INLINE_HTML / T_CLOSE_TAG / T_OPEN_TAG), so a template keeps its ending
+	if t.Kind == token.InlineHTML || t.Kind == token.CloseTag || t.Kind == token.OpenTag {
+		return false
+	}
 	if t.Kind == token.Whitespace {
 		// the final whitespace token is entirely trailing; collapse to one \n
 		if t.Value != "\n" {