fix(sitemap): save generated sitemaps in configurable directory

Previously in priv/static, now by default in production in /var/lib/mobilizon/sitemap and
configurable through the $MOBILIZON_SITEMAP_PATH ENV variable

Closes #1321

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

config/config.exs

@@ -392,6 +392,9 @@ config :mobilizon, Mobilizon.Service.GlobalSearch.SearchMobilizon,
 
 config :mobilizon, Mobilizon.Service.AntiSpam, service: Mobilizon.Service.AntiSpam.Akismet
 
+config :mobilizon, Mobilizon.Service.SiteMap,
+  path: System.get_env("MOBILIZON_SITEMAP_PATH", "/var/lib/mobilizon/sitemap")
+
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
 import_config "#{config_env()}.exs"

config/dev.exs

@@ -92,6 +92,9 @@ config :mobilizon, Mobilizon.Web.Upload.Uploader.Local, uploads: "uploads"
 
 config :mobilizon, :exports, path: "uploads/exports"
 
+config :mobilizon, Mobilizon.Service.SiteMap,
+  path: System.get_env("MOBILIZON_SITEMAP_PATH", "priv/static")
+
 config :tz_world, data_dir: "_build/dev/lib/tz_world/priv"
 
 config :mobilizon, :anonymous,

config/test.exs

@@ -62,6 +62,9 @@ config :mobilizon, Mobilizon.Web.Upload.Uploader.Local, uploads: "test/uploads"
 
 config :mobilizon, :exports, path: "test/uploads/exports"
 
+config :mobilizon, Mobilizon.Service.SiteMap,
+  path: System.get_env("MOBILIZON_SITEMAP_PATH", "test/sitemap")
+
 config :tz_world, data_dir: "_build/test/lib/tz_world/priv"
 
 config :tesla, Mobilizon.Service.HTTP.ActivityPub,

lib/service/site_map.ex

@@ -24,7 +24,7 @@ defmodule Mobilizon.Service.SiteMap do
 
     config = [
       store: Sitemapper.FileStore,
-      store_config: [path: Application.app_dir(:mobilizon, "priv/static")],
+      store_config: [path: Application.get_env(:mobilizon, __MODULE__) |> get_in([:path])],
       sitemap_url: Endpoint.url(),
       gzip: false
     ]