add bad way to dump schema, add schema

Author: suaviloquence

Cargo.toml

@@ -63,3 +63,6 @@ tokio-scoped = "0.2.0"
 [target.'cfg(all(target_env = "musl", target_pointer_width = "64"))'.dependencies.mimalloc]
 version = "0.1"
 default-features = false
+
+[features]
+dump-schema = []

src/main.rs

@@ -80,6 +80,7 @@ async fn refresh<'a>() -> Response {
         .unwrap()
 }
 
+#[cfg(not(feature = "dump-schema"))]
 #[tokio::main(flavor = "current_thread")]
 async fn main() {
     CACHE
@@ -138,3 +139,10 @@ async fn main() {
         .await
         .unwrap_or_else(|e| panic!("failed to run `axum::serve`: {e}"));
 }
+
+#[cfg(feature = "dump-schema")]
+fn main() {
+    let schema = Schema::new(Query, EmptyMutation::new(), EmptySubscription::new());
+    std::fs::write("ucsc_menu.graphql", schema.as_sdl().as_bytes())
+        .expect("error writing schema to file");
+}

ucsc_menu.graphql

@@ -0,0 +1,88 @@
+schema {
+  query: Query
+}
+
+enum Allergens {
+  EGG
+  FISH
+  GLUTEN_FRIENDLY
+  MILK
+  PEANUT
+  SOY
+  TREE_NUT
+  ALCOHOL
+  VEGAN
+  VEGETARIAN
+  PORK
+  BEEF
+  HALAL
+  SHELLFISH
+  SESAME
+}
+
+enum Type {
+  BREAKFAST
+  LUNCH
+  DINNER
+  LATE_NIGHT
+  MENU
+  UNKNOWN
+  ALL_DAY
+  BANANA_JOES
+}
+
+input DateRange {
+  start: Date
+  end: Date
+}
+
+"""
+  Date in the proleptic Gregorian calendar (without time zone).
+
+  Represents a description of the date (as used for birthdays, for example).
+  It cannot represent an instant on the time-line.
+
+  [`Date` scalar][1] compliant.
+
+  See also [`chrono::NaiveDate`][2] for details.
+
+  [1]: https://graphql-scalars.dev/docs/scalars/date
+  [2]: https://docs.rs/chrono/latest/chrono/naive/struct.NaiveDate.html
+"""
+scalar Date
+
+type DailyMenu {
+  date: Date!
+  meals(mealType: Type): [Meal!]!
+}
+
+type FoodItem {
+  allergens: [Allergens!]!
+  name: String!
+  price: String
+}
+
+type Location {
+  id: String!
+  name: String!
+  menus(dateRange: DateRange): [DailyMenu!]!
+}
+
+type Locations {
+  locations(ids: [String!]): [Location!]!
+}
+
+type Meal {
+  mealType: Type!
+  sections: [Section!]!
+}
+
+type Query {
+  "Adds two `a` and `b` numbers."
+  query: Locations!
+}
+
+type Section {
+  name: String!
+  foodItems(containsAllAllergens: [Allergens!], excludesAllAllergens: [Allergens!], containsAnyAllergens: [Allergens!], nameContains: String): [FoodItem!]!
+}