11 files changed, 21 insertions, 11 deletions

diff --git a/content/projects/doodles/2021-lazy-firefox/index.md b/content/projects/doodles/2021-lazy-firefox/index.md
index 311ea5e..f97a139 100644
--- a/content/projects/doodles/2021-lazy-firefox/index.md
+++ b/content/projects/doodles/2021-lazy-firefox/index.md
@@ -1,7 +1,7 @@
 ---
 title:     Lazy Firefox
 date:      2021-10-16
-thumbnail: thumbnail.png
+thumbnail: png
 ---
 
 ![](firefox_lazy.png)
diff --git a/content/projects/drawings/2021-cute-ava/index.md b/content/projects/drawings/2021-cute-ava/index.md
index 26d0dfc..43171a9 100644
--- a/content/projects/drawings/2021-cute-ava/index.md
+++ b/content/projects/drawings/2021-cute-ava/index.md
@@ -1,7 +1,7 @@
 ---
 title:     Cute Avatar
 date:      2021-03-01
-thumbnail: thumbnail.png
+thumbnail: png
 ---
 
 ![](ava.png)
diff --git a/content/projects/drawings/2021-eeveelutions/index.md b/content/projects/drawings/2021-eeveelutions/index.md
index 98c071e..b169ee0 100644
--- a/content/projects/drawings/2021-eeveelutions/index.md
+++ b/content/projects/drawings/2021-eeveelutions/index.md
@@ -1,7 +1,7 @@
 ---
 title:     Eeveelutions
 date:      2021-08-19
-thumbnail: thumbnail.png
+thumbnail: png
 ---
 
 ![](eevee.png)
diff --git a/content/projects/drawings/2021-lycanroc-ava/index.md b/content/projects/drawings/2021-lycanroc-ava/index.md
index 9bf1a5c..275df4d 100644
--- a/content/projects/drawings/2021-lycanroc-ava/index.md
+++ b/content/projects/drawings/2021-lycanroc-ava/index.md
@@ -1,7 +1,7 @@
 ---
 title:     Lycanroc Avatar
 date:      2021-10-19
-thumbnail: thumbnail.png
+thumbnail: png
 ---
 
 ![](ava.png)
diff --git a/content/projects/drawings/2021-refsheet/index.md b/content/projects/drawings/2021-refsheet/index.md
index c4c9bdd..2163fac 100644
--- a/content/projects/drawings/2021-refsheet/index.md
+++ b/content/projects/drawings/2021-refsheet/index.md
@@ -1,7 +1,7 @@
 ---
 title:     Reference Sheet Views
 date:      2021-10-06
-thumbnail: thumbnail.png
+thumbnail: png
 ---
 
 ![](bottom.png)
diff --git a/content/projects/drawings/2021-spooky-ava-1/index.md b/content/projects/drawings/2021-spooky-ava-1/index.md
index 7a988c3..5099dcc 100644
--- a/content/projects/drawings/2021-spooky-ava-1/index.md
+++ b/content/projects/drawings/2021-spooky-ava-1/index.md
@@ -1,7 +1,7 @@
 ---
 title:     \"Spooky\" Avatar
 date:      2021-10-07
-thumbnail: thumbnail.png
+thumbnail: png
 ---
 
 ![](ava.png)
diff --git a/content/projects/drawings/2021-spooky-ava-2/index.md b/content/projects/drawings/2021-spooky-ava-2/index.md
index 9854adf..84064db 100644
--- a/content/projects/drawings/2021-spooky-ava-2/index.md
+++ b/content/projects/drawings/2021-spooky-ava-2/index.md
@@ -1,7 +1,7 @@
 ---
 title:     Spooky Avatar
 date:      2021-10-14
-thumbnail: thumbnail.png
+thumbnail: png
 ---
 
 ![](ava.png)
diff --git a/content/projects/emojis/blobfox/index.md b/content/projects/emojis/blobfox/index.md
index b7733c9..22c4a93 100644
--- a/content/projects/emojis/blobfox/index.md
+++ b/content/projects/emojis/blobfox/index.md
@@ -1,7 +1,7 @@
 ---
 title:     Blobfox
 date:      2020-09-04
-thumbnail: thumbnail.jpg
+thumbnail: jpg
 ---
 
 ![](screenshot.png)
diff --git a/content/projects/emojis/bunhd/index.md b/content/projects/emojis/bunhd/index.md
index 900d910..4181b75 100644
--- a/content/projects/emojis/bunhd/index.md
+++ b/content/projects/emojis/bunhd/index.md
@@ -1,7 +1,7 @@
 ---
 title:     BunHD
 date:      2019-09-30
-thumbnail: thumbnail.png
+thumbnail: png
 ---
 
 ![](screenshot.png)
diff --git a/content/projects/emojis/vlpn/index.md b/content/projects/emojis/vlpn/index.md
index 02b8e38..9cec213 100644
--- a/content/projects/emojis/vlpn/index.md
+++ b/content/projects/emojis/vlpn/index.md
@@ -1,7 +1,7 @@
 ---
 title:     vlpn
 date:      2021-07-23
-thumbnail: thumbnail.png
+thumbnail: png
 ---
 
 ![](preview.png)
diff --git a/scripts/metadata_filter.lua b/scripts/metadata_filter.lua
index b16ab92..413ded5 100644
--- a/scripts/metadata_filter.lua
+++ b/scripts/metadata_filter.lua
@@ -19,6 +19,15 @@ function pandoc.List:take(n)
     return result
 end
 
+function file_exists(name)
+    local f = io.open(name, "r")
+    if f ~= nil then
+        io.close(f)
+        return true
+    end
+    return false
+end
+
 function format_date(date)
     if not date then return date end
 
@@ -297,7 +306,8 @@ function process(global, meta)
     end
 
     if meta.thumbnail then
-        meta.thumbnail = make_absolute(pandoc.utils.stringify(meta.thumbnail), meta.file_out)
+        meta.thumbnail = make_absolute("thumbnail." .. pandoc.utils.stringify(meta.thumbnail),
+            meta.file_out)
         meta.thumbnail = resolve_url(global.site.url, global.file_out, meta.thumbnail)
     end