From 80fd76df053087744758c554de7bbf883b2c2313 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20Vo=C5=99=C3=AD=C5=A1ek?= <mvorisek@mvorisek.cz>
Date: Sat, 17 Dec 2022 14:47:31 +0100
Subject: [PATCH] Fix semicolon duplicated at the end of file

---
 changelog_unreleased/less/14007.md            | 19 +++++++++++++++++++
 src/language-css/printer-postcss.js           |  5 ++++-
 .../less/__snapshots__/jsfmt.spec.js.snap     | 18 ++++++++++++++++++
 .../issue-11483--never-append-anything.less   |  3 +++
 4 files changed, 44 insertions(+), 1 deletion(-)
 create mode 100644 changelog_unreleased/less/14007.md
 create mode 100644 tests/format/less/less/issue-11483--never-append-anything.less

diff --git a/changelog_unreleased/less/14007.md b/changelog_unreleased/less/14007.md
new file mode 100644
index 000000000000..eed8b756d1d8
--- /dev/null
+++ b/changelog_unreleased/less/14007.md
@@ -0,0 +1,19 @@
+#### Fix semicolon duplicated at the end of LESS file (#14007 by @mvorisek)
+
+<!-- prettier-ignore -->
+```less
+// Input
+@variable: {
+  field: something;
+};
+
+// Prettier stable
+@variable: {
+  field: something;
+}; ;
+
+// Prettier main
+@variable: {
+  field: something;
+};
+```
diff --git a/src/language-css/printer-postcss.js b/src/language-css/printer-postcss.js
index 4ba444c8d77d..eaa5e38ffe4c 100644
--- a/src/language-css/printer-postcss.js
+++ b/src/language-css/printer-postcss.js
@@ -101,7 +101,10 @@ function genericPrint(path, options, print) {
       return [node.raw, hardline];
     case "css-root": {
       const nodes = printNodeSequence(path, options, print);
-      const after = node.raws.after.trim();
+      let after = node.raws.after.trim();
+      if (after.startsWith(";")) {
+        after = after.slice(1).trim();
+      }
 
       return [
         nodes,
diff --git a/tests/format/less/less/__snapshots__/jsfmt.spec.js.snap b/tests/format/less/less/__snapshots__/jsfmt.spec.js.snap
index f52a92aa232d..1541bb0496db 100644
--- a/tests/format/less/less/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/less/less/__snapshots__/jsfmt.spec.js.snap
@@ -83,6 +83,24 @@ a: b;
 ================================================================================
 `;
 
+exports[`issue-11483--never-append-anything.less format 1`] = `
+====================================options=====================================
+parsers: ["less"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+@variable: {
+  field: something;
+};
+
+=====================================output=====================================
+@variable: {
+  field: something;
+};
+
+================================================================================
+`;
+
 exports[`less.less format 1`] = `
 ====================================options=====================================
 parsers: ["less"]
diff --git a/tests/format/less/less/issue-11483--never-append-anything.less b/tests/format/less/less/issue-11483--never-append-anything.less
new file mode 100644
index 000000000000..c0fbaa61478e
--- /dev/null
+++ b/tests/format/less/less/issue-11483--never-append-anything.less
@@ -0,0 +1,3 @@
+@variable: {
+  field: something;
+};