Add /version route

Signed-off-by: Lilly Rose Berner <[email protected]>

Author: LostLuma

echo/Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "echo"
-version = "1.0.0"
+version = "5.0.0-alpha.1"
 publish = false
 edition = "2021"
 

echo/Cargo.toml

@@ -26,6 +26,7 @@ fn rocket() -> _ {
         meta::get_docs,
         meta::get_spec,
         meta::get_health,
+        meta::get_version,
         pastes::get_paste,
         pastes::create_paste_simple,
         pastes::create_paste_structured,

echo/src/main.rs

@@ -0,0 +1,16 @@
+use serde::Serialize;
+
+#[derive(Clone, Copy, Serialize)]
+pub struct Version {
+    version: &'static str,
+}
+
+impl Version {
+    const fn new() -> Self {
+        Version {
+            version: env!("CARGO_PKG_VERSION"),
+        }
+    }
+}
+
+pub static VERSION: Version = Version::new();

echo/src/models/meta.rs

@@ -1,2 +1,3 @@
+pub mod meta;
 pub mod pastes;
 pub mod security;

echo/src/models/mod.rs

@@ -15,6 +15,7 @@ use scalar_doc::{Documentation, Theme};
 
 use crate::{
     database::PgDatabase,
+    models::meta::{Version, VERSION},
     result::{HTTPError, Result},
 };
 
@@ -47,3 +48,8 @@ pub async fn get_health(mut db: Connection<PgDatabase>) -> Result<String> {
         Err(_) => Err(HTTPError::new(503, "Database connection unhealthy.")),
     }
 }
+
+#[get("/version")]
+pub async fn get_version() -> Json<Version> {
+    Json(VERSION)
+}