Server: Replace lazy static with once cell everywhere (#1024)

The `lazy_static` crate has not received maintenance in about four
years, and has generally been deprecated in favor of `once_cell`. The
latter's interface is being incorporated into the standard library.

This PR simply swaps out `lazy_static` macro invocations for
`once_cell`'s `Lazy` interface.

server/svix-server/Cargo.toml

@@ -35,7 +35,7 @@ serde_path_to_error = "0.1.7"
 num_enum = "0.5.6"
 enum_dispatch = "0.3.8"
 regex = "1.5.5"
-lazy_static = "1.4.0"
+once_cell = "1.18.0"
 figment = { version = "0.10", features = ["toml", "env", "test"] }
 tracing = "0.1.35"
 tracing-subscriber = { version="0.3", features = ["env-filter", "json"] }

server/svix-server/src/core/types/mod.rs

@@ -4,12 +4,12 @@
 use std::collections::{HashMap, HashSet};
 
 use chrono::{DateTime, Utc};
-use lazy_static::lazy_static;
 use num_enum::{IntoPrimitive, TryFromPrimitive};
 use rand::Rng;
 
 use regex::Regex;
 
+use once_cell::sync::Lazy;
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use std::ops::Deref;
@@ -217,9 +217,7 @@ pub trait BaseId: Deref<Target = String> {
 
 fn validate_limited_str(s: &str) -> std::result::Result<(), ValidationErrors> {
     const MAX_LENGTH: usize = 256;
-    lazy_static! {
-        static ref RE: Regex = Regex::new(r"^[a-zA-Z0-9\-_.]+$").unwrap();
-    }
+    static RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"^[a-zA-Z0-9\-_.]+$").unwrap());
     let mut errors = ValidationErrors::new();
     if s.is_empty() {
         errors.add(

server/svix-server/src/lib.rs

@@ -8,7 +8,6 @@ use aide::axum::ApiRouter;
 
 use crate::core::cache::Cache;
 use cfg::ConfigurationInner;
-use lazy_static::lazy_static;
 use opentelemetry::runtime::Tokio;
 use opentelemetry_otlp::WithExportConfig;
 use queue::TaskQueueProducer;
@@ -47,9 +46,7 @@ pub mod worker;
 
 const CRATE_NAME: &str = env!("CARGO_CRATE_NAME");
 
-lazy_static! {
-    pub static ref SHUTTING_DOWN: AtomicBool = AtomicBool::new(false);
-}
+pub static SHUTTING_DOWN: AtomicBool = AtomicBool::new(false);
 
 async fn graceful_shutdown_handler() {
     let ctrl_c = async {

server/svix-server/src/v1/utils/mod.rs

@@ -22,6 +22,7 @@ use axum::{
 };
 use chrono::{DateTime, Utc};
 use http::{request::Parts, Request, StatusCode};
+use once_cell::sync::Lazy;
 use regex::Regex;
 use schemars::JsonSchema;
 use sea_orm::{ColumnTrait, QueryFilter, QueryOrder, QuerySelect};
@@ -46,9 +47,8 @@ const fn default_limit() -> PaginationLimit {
 
 const PAGINATION_LIMIT_CAP_HARD: bool = true;
 const PAGINATION_LIMIT_CAP_LIMIT: u64 = 250;
-// TODO: Should probably use lazy_static and format! to make this instead of repeating the 250
-// figure at some point
-const PAGINATION_LIMIT_ERROR: &str = "Given limit must not exceed 250";
+static PAGINATION_LIMIT_ERROR: Lazy<String> =
+    Lazy::new(|| format!("Given limit must not exceed {PAGINATION_LIMIT_CAP_LIMIT}"));
 
 #[derive(Debug, Deserialize, Validate, JsonSchema)]
 pub struct PaginationDescending<T: Validate + JsonSchema> {
@@ -96,7 +96,7 @@ impl Validate for PaginationLimit {
         if self.0 > PAGINATION_LIMIT_CAP_LIMIT {
             errs.add(
                 "limit",
-                validation_error(Some("pagination"), Some(PAGINATION_LIMIT_ERROR)),
+                validation_error(Some("pagination"), Some(&PAGINATION_LIMIT_ERROR)),
             );
         }
 

server/svix-server/src/worker.rs

@@ -27,7 +27,7 @@ use chrono::Utc;
 
 use futures::future;
 use http::{HeaderValue, StatusCode, Version};
-use lazy_static::lazy_static;
+use once_cell::sync::Lazy;
 use rand::Rng;
 
 use sea_orm::prelude::DateTimeUtc;
@@ -855,9 +855,7 @@ async fn process_queue_task_inner(
     Ok(())
 }
 
-lazy_static! {
-    pub static ref LAST_QUEUE_POLL: AtomicU64 = get_unix_timestamp().into();
-}
+pub static LAST_QUEUE_POLL: Lazy<AtomicU64> = Lazy::new(|| get_unix_timestamp().into());
 
 async fn update_last_poll_time() {
     LAST_QUEUE_POLL.swap(get_unix_timestamp(), Ordering::Relaxed);