Rewrite to rust init

src/config.rs

@@ -0,0 +1,43 @@
+use once_cell::sync::Lazy;
+
+fn get_env(env: &'static str) -> String {
+    std::env::var(env).unwrap_or_else(|_| panic!("Cannot get the {} env variable", env))
+}
+
+pub struct Config {
+    pub api_key: String,
+
+    pub postgres_user: String,
+    pub postgres_password: String,
+    pub postgres_host: String,
+    pub postgres_port: u32,
+    pub postgres_db: String,
+
+    pub meili_host: String,
+    pub meili_master_key: String,
+
+    pub sentry_dsn: String
+}
+
+impl Config {
+    pub fn load() -> Config {
+        Config {
+            api_key: get_env("API_KEY"),
+
+            postgres_user: get_env("POSTGRES_USER"),
+            postgres_password: get_env("POSTGRES_PASSWORD"),
+            postgres_host: get_env("POSTGRES_HOST"),
+            postgres_port: get_env("POSTGRES_PORT").parse().unwrap(),
+            postgres_db: get_env("POSTGRES_DB"),
+
+            meili_host: get_env("MEILI_HOST"),
+            meili_master_key: get_env("MEILI_MASTER_KEY"),
+
+            sentry_dsn: get_env("SENTRY_DSN")
+        }
+    }
+}
+
+pub static CONFIG: Lazy<Config> = Lazy::new(|| {
+    Config::load()
+});