feat: Add support for front-matter: link

languages/en.yml

@@ -56,7 +56,7 @@ post:
   read_more: Read more
   fire: Heat
   sticky: Sticky top
-  untitled: Untitled
+  untitled: ( Untitled )
   end: End of text, thank you for reading
   copyright:
     author: Author

languages/zh-CN.yml

@@ -56,7 +56,7 @@ post:
   read_more: 阅读全文
   fire: 热度
   sticky: 置顶文章
-  untitled: 文章未命名
+  untitled: ( 文章未命名 )
   end: 本文结束，感谢您的阅读
   copyright:
     author: 本文作者

layout/_mixins/post-header.pug

 mixin postHeader(post)
   div.post-header
-    if (is_post())
-      if (post.title)
-        h1.post-title= post.title
-      else
-        h1.post-title= _p("post.untitled")
+    if is_post()
+      h1.post-title= post.title || _p("post.untitled")
     else
-      a(href=url_for(post.canonical_path)).post-title-link
-        if (post.title)
-          h1.post-title= post.title
-        else
-          h1.post-title= _p("post.untitled")
+      if post.link
+        a(href=url_for(post.link) target="_blank").post-title-link
+          h1.post-title= post.title || post.link
+      else
+        a(href=url_for(post.canonical_path)).post-title-link
+          h1.post-title= post.title || _p("post.untitled")
     
     div.post-meta
       if theme.post_meta.created.enable
@@ -19,10 +17,7 @@ mixin postHeader(post)
 
           if !theme.post_meta.icon_only
             span= _p("post.posted") + " "
-          if post.date
-            span= full_date(post.date, "YYYY-MM-DD")
-          else
-            span none
+          span= post.date ? full_date(post.date, "YYYY-MM-DD") : 'none'
       
       if theme.post_meta.updated.enable
         span.post-meta-update
@@ -30,10 +25,7 @@ mixin postHeader(post)
 
           if !theme.post_meta.icon_only
             span= _p("post.updated") + " "
-          if post.updated
-            span= full_date(post.updated, "YYYY-MM-DD")
-          else
-            span none
+          span= post.updated ? full_date(post.updated, "YYYY-MM-DD") : 'none'
       
       if theme.post_meta.word_count.enable
         span.post-meta-word-count

layout/_mixins/posts-sort.pug

@@ -13,7 +13,10 @@ mixin articleSort(posts)
         if post.date
           time.article-sort-item__time= full_date(post.date, "MM-DD")
           h2.article-sort-item__title
-            a(href=url_for(post.path))= post.title || "No Title"
+            if post.link
+              a(href=url_for(post.link) target="_blank")= post.title || post.link
+            else
+              a(href=url_for(post.path))= post.title || _p('post.untitled')
 
         if post.top
           include ../_components/sticky-top.pug