Add support for install via file and build_url params

lib/pleroma/frontend.ex

@@ -8,16 +8,16 @@ defmodule Pleroma.Frontend do
   require Logger
 
   def install(name, opts \\ []) do
-    cmd_frontend_info = %{
+    frontend_info = %{
       "ref" => opts[:ref],
       "build_url" => opts[:build_url],
       "build_dir" => opts[:build_dir]
     }
 
-    config_frontend_info = Config.get([:frontends, :available, name], %{})
-
     frontend_info =
-      Map.merge(config_frontend_info, cmd_frontend_info, fn _key, config, cmd ->
+      [:frontends, :available, name]
+      |> Config.get(%{})
+      |> Map.merge(frontend_info, fn _key, config, cmd ->
         # This only overrides things that are actually set
         cmd || config
       end)

lib/pleroma/web/api_spec/operations/admin/frontend_operation.ex

@@ -49,7 +49,7 @@ defmodule Pleroma.Web.ApiSpec.Admin.FrontendOperation do
         properties: %{
           name: %Schema{type: :string},
           git: %Schema{type: :string, format: :uri, nullable: true},
-          build_url: %Schema{type: :string, format: :uri},
+          build_url: %Schema{type: :string, format: :uri, nullable: true},
           ref: %Schema{type: :string},
           installed: %Schema{type: :boolean}
         }
@@ -64,12 +64,19 @@ defmodule Pleroma.Web.ApiSpec.Admin.FrontendOperation do
       required: [:name],
       properties: %{
         name: %Schema{
-          type: :string,
-          nullable: false
+          type: :string
         },
         ref: %Schema{
-          type: :string,
-          nullable: false
+          type: :string
+        },
+        file: %Schema{
+          type: :string
+        },
+        build_url: %Schema{
+          type: :string
+        },
+        build_dir: %Schema{
+          type: :string
         }
       }
     }