i18n: extract include_i18n macro use into method for consistent compilation order

src/mail.rs

@@ -292,8 +292,9 @@ pub fn pop_mail(dir: &Path) -> Result<Option<String>> {
 
 #[cfg(test)]
 mod test {
+    use crate::web::get_i18n;
+
     use super::*;
-    use gettext_macros::include_i18n;
     use std::str::FromStr;
     use tempfile::{tempdir, TempDir};
 
@@ -302,7 +303,7 @@ mod test {
     const TO: &str = "recipient@example.org";
 
     fn configure_i18n(lang: &'static str) -> I18n {
-        let langs = include_i18n!();
+        let langs = get_i18n();
         let catalog = langs
             .clone()
             .into_iter()

src/template_helpers.rs

@@ -3,9 +3,8 @@ use std::path::{Path, PathBuf};
 
 use handlebars::Handlebars;
 
-use gettext_macros::include_i18n;
-
 use crate::i18n::I18NHelper;
+use crate::web::get_i18n;
 use crate::Result;
 
 #[derive(Debug)]
@@ -55,7 +54,7 @@ fn load_localized_template_names(
 pub fn load_handlebars(template_dir: &Path) -> Result<Handlebars<'static>> {
     let mut handlebars = Handlebars::new();
 
-    let i18ns = include_i18n!();
+    let i18ns = get_i18n();
     let i18n_helper = I18NHelper::new(i18ns);
     handlebars.register_helper("text", Box::new(i18n_helper));
 

src/web/mod.rs

@@ -396,6 +396,12 @@ pub fn serve() -> Result<rocket::Rocket<rocket::Build>> {
 
 compile_i18n!();
 
+// The include_i18n macro must be called after compile_i18n, which must be called after i18n macros
+// *in compilation order*. We use a helper function here to make this order consistent.
+pub fn get_i18n() -> Vec<(&'static str, gettext::Catalog)> {
+    include_i18n!()
+}
+
 fn rocket_factory(
     mut rocket: rocket::Rocket<rocket::Build>,
 ) -> Result<rocket::Rocket<rocket::Build>> {
@@ -467,14 +473,14 @@ fn rocket_factory(
 
     rocket = rocket
         .attach(Template::custom(|engines: &mut Engines| {
-            let i18ns = include_i18n!();
+            let i18ns = get_i18n();
             let i18n_helper = I18NHelper::new(i18ns);
             engines
                 .handlebars
                 .register_helper("text", Box::new(i18n_helper));
         }))
         .attach(maintenance_mode)
-        .manage(include_i18n!())
+        .manage(get_i18n())
         .manage(hagrid_state)
         .manage(stateless_token_service)
         .manage(stateful_token_service)
@@ -594,7 +600,6 @@ pub mod tests {
     use mail::pop_mail;
 
     use super::*;
-    use crate::database::*;
 
     /// Fake base URI to use in tests.
     const BASE_URI: &str = "http://local.connection";