Merge branch 'feature/auto-shortcodes' into 'develop'

Feature: automatic shortcodes for emoji

See merge request pleroma/pleroma!245

config/config.exs

@@ -12,6 +12,8 @@
 
 config :pleroma, Pleroma.Upload, uploads: "uploads"
 
+config :pleroma, :emoji, shortcode_globs: ["/emoji/custom/**/*.png"]
+
 # Configures the endpoint
 config :pleroma, Pleroma.Web.Endpoint,
   url: [host: "localhost"],

lib/pleroma/formatter.ex

@@ -116,7 +116,28 @@ def parse_mentions(text) do
                       _ -> []
                     end)
 
-  @emoji @finmoji_with_filenames ++ @emoji_from_file
+  @emoji_from_globs (
+                      static_path = Path.join(:code.priv_dir(:pleroma), "static")
+
+                      globs =
+                        Application.get_env(:pleroma, :emoji, [])
+                        |> Keyword.get(:shortcode_globs, [])
+
+                      paths =
+                        Enum.map(globs, fn glob ->
+                          Path.join(static_path, glob)
+                          |> Path.wildcard()
+                        end)
+                        |> Enum.concat()
+
+                      Enum.map(paths, fn path ->
+                        shortcode = Path.basename(path, Path.extname(path))
+                        external_path = Path.join("/", Path.relative_to(path, static_path))
+                        {shortcode, external_path}
+                      end)
+                    )
+
+  @emoji @finmoji_with_filenames ++ @emoji_from_globs ++ @emoji_from_file
 
   def emojify(text, emoji \\ @emoji)
   def emojify(text, nil), do: text