From cdea2aaf1b5bd905bd92e47375dc252aa24f837f Mon Sep 17 00:00:00 2001
From: dailyrandomphoto <dailyrandomphoto@gmail.com>
Date: Thu, 26 Dec 2019 14:29:01 +0800
Subject: [PATCH] refactor(list_archives): Reduce calls to date.format()

---
 lib/plugins/helper/list_archives.js   | 10 +++++++---
 test/scripts/helpers/list_archives.js | 28 +++++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/lib/plugins/helper/list_archives.js b/lib/plugins/helper/list_archives.js
index db6860663c..e57d1245b1 100644
--- a/lib/plugins/helper/list_archives.js
+++ b/lib/plugins/helper/list_archives.js
@@ -13,6 +13,10 @@ function listArchivesHelper(options = {}) {
   const showCount = Object.prototype.hasOwnProperty.call(options, 'show_count') ? options.show_count : true;
   const className = options.class || 'archive';
   const order = options.order || -1;
+  const compareFunc = type === 'monthly'
+    ? (yearA, monthA, yearB, monthB) => yearA === yearB && monthA === monthB
+    : (yearA, monthA, yearB, monthB) => yearA === yearB;
+
   let result = '';
 
   if (!format) {
@@ -30,14 +34,14 @@ function listArchivesHelper(options = {}) {
     let date = post.date.clone();
 
     if (timezone) date = date.tz(timezone);
-    if (lang) date = date.locale(lang);
 
     const year = date.year();
     const month = date.month() + 1;
-    const name = date.format(format);
     const lastData = data[length - 1];
 
-    if (!lastData || lastData.name !== name) {
+    if (!lastData || !compareFunc(lastData.year, lastData.month, year, month)) {
+      if (lang) date = date.locale(lang);
+      const name = date.format(format);
       length = data.push({
         name,
         year,
diff --git a/test/scripts/helpers/list_archives.js b/test/scripts/helpers/list_archives.js
index 6c94f71fc1..b2bbb4daec 100644
--- a/test/scripts/helpers/list_archives.js
+++ b/test/scripts/helpers/list_archives.js
@@ -93,6 +93,19 @@ describe('list_archives', () => {
     ].join(''));
   });
 
+  it('show_count + style: false', () => {
+    const result = listArchives({
+      style: false,
+      show_count: false
+    });
+
+    result.should.eql([
+      '<a class="archive-link" href="/archives/2014/02/">February 2014</a>',
+      '<a class="archive-link" href="/archives/2013/10/">October 2013</a>',
+      '<a class="archive-link" href="/archives/2013/06/">June 2013</a>'
+    ].join(', '));
+  });
+
   it('order', () => {
     const result = listArchives({
       order: 1
@@ -123,6 +136,21 @@ describe('list_archives', () => {
     ].join(''));
   });
 
+  it('transform + style: false', () => {
+    const result = listArchives({
+      style: false,
+      transform(str) {
+        return str.toUpperCase();
+      }
+    });
+
+    result.should.eql([
+      '<a class="archive-link" href="/archives/2014/02/">FEBRUARY 2014<span class="archive-count">1</span></a>',
+      '<a class="archive-link" href="/archives/2013/10/">OCTOBER 2013<span class="archive-count">1</span></a>',
+      '<a class="archive-link" href="/archives/2013/06/">JUNE 2013<span class="archive-count">2</span></a>'
+    ].join(', '));
+  });
+
   it('separator', () => {
     const result = listArchives({
       style: false,