From 427fa6d46686d01744f07d60a0c2b2aefbee2319 Mon Sep 17 00:00:00 2001
From: XPoet <i@xpoet.cn>
Date: Tue, 27 Sep 2022 13:43:36 +0800
Subject: [PATCH] feat: added cdn provider setting in _config.yml (#158)

---
 _config.yml               |  5 +++--
 scripts/helpers/helper.js | 37 ++++++++++++++++++++++++++++---------
 2 files changed, 31 insertions(+), 11 deletions(-)

diff --git a/_config.yml b/_config.yml
index 93cd626..52aa78d 100644
--- a/_config.yml
+++ b/_config.yml
@@ -28,7 +28,7 @@ style:
   # Favicon (You can use local image or image external link)
   favicon: /images/logo.svg
 
-  # Article image align position, value: left | center
+  # Article image align position, values: left | center
   article_img_align: left
 
   # Left side width
@@ -132,7 +132,7 @@ post:
   author_label:
     enable: true
     auto: true # if true, show Lv1, Lv2, Lv3... , If false, show custom label
-    # label array item can be one or more
+    # Label array item can be one or more
     custom_label_list: ["Trainee", "Engineer", "Architect", "CTO", "BOSS"]
 
 # ---------------------------------------------------------------------------------------
@@ -233,6 +233,7 @@ lazyload:
 # ---------------------------------------------------------------------------------------
 cdn:
   enable: false
+  provider: jsdelivr # values: jsdelivr | unpkg
 
 # ---------------------------------------------------------------------------------------
 # PJAX
diff --git a/scripts/helpers/helper.js b/scripts/helpers/helper.js
index 7bcbcef..fa73f8e 100644
--- a/scripts/helpers/helper.js
+++ b/scripts/helpers/helper.js
@@ -54,12 +54,34 @@ hexo.extend.helper.register('getPostUrl', function (rootUrl, path) {
   }
 });
 
+const getSourceCdnUrl = (tyle, themeConfig, path) => {
+  const { version = '3.4.5', cdn = {} } = themeConfig
+  const { provider = 'jsdelivr' } = cdn
+
+  let urlPrefix = ''
+  switch (provider.toLocaleLowerCase()) {
+    case 'jsdelivr':
+      urlPrefix = '//cdn.jsdelivr.net/npm/hexo-theme-keep'
+      if (tyle === 'js') {
+        return `<script src="${urlPrefix}@${version}/source/${path}"></script>`;
+      } else {
+        return `<link rel="stylesheet" href="${urlPrefix}@${version}/source/${path}">`;
+      }
+    case 'unpkg':
+      urlPrefix = '//unpkg.com/hexo-theme-keep'
+      if (tyle === 'js') {
+        return `<script src="${urlPrefix}@${version}/source/${path}"></script>`;
+      } else {
+        return `<link rel="stylesheet" href="${urlPrefix}@${version}/source/${path}">`;
+      }
+  }
+}
+
 hexo.extend.helper.register('__js', function (path) {
+  const { enable } = this.theme.cdn
   const _js = hexo.extend.helper.get('js').bind(hexo);
-  const cdnPathHandle = (path_2) => {
-    return this.theme.cdn.enable
-      ? `<script src="//cdn.jsdelivr.net/npm/hexo-theme-keep@${this.theme.version}/source/${path_2}"></script>`
-      : _js(path_2);
+  const cdnPathHandle = (pa) => {
+    return enable ? getSourceCdnUrl('js', this.theme, pa) : _js(pa);
   }
 
   let t = ``;
@@ -76,10 +98,7 @@ hexo.extend.helper.register('__js', function (path) {
 });
 
 hexo.extend.helper.register('__css', function (path) {
+  const { enable } = this.theme.cdn
   const _css = hexo.extend.helper.get('css').bind(hexo);
-  if (this.theme.cdn.enable) {
-    return `<link rel="stylesheet" href="//cdn.jsdelivr.net/npm/hexo-theme-keep@${this.theme.version}/source/${path}">`;
-  } else {
-    return _css(path);
-  }
+  return enable ? getSourceCdnUrl('css', this.theme, path) : _css(path);
 });