From 1acef755ca8a0a0433a98e4a66433c63ee0a3b09 Mon Sep 17 00:00:00 2001
From: Divy Srivastava <dj.srivastava23@gmail.com>
Date: Mon, 30 Oct 2023 08:45:45 -0700
Subject: chore: remove usage of chrono::Utc::now() (#20995)

Remove usage of Chrono's clock feature which pulls in iana-time-zone ->
core-foundation
---
 ext/kv/lib.rs    |  4 ++--
 ext/kv/remote.rs |  2 +-
 ext/kv/time.rs   | 19 +++++++++++++++++++
 3 files changed, 22 insertions(+), 3 deletions(-)
 create mode 100644 ext/kv/time.rs

(limited to 'ext')

diff --git a/ext/kv/lib.rs b/ext/kv/lib.rs
index 20f774033..fb68596fa 100644
--- a/ext/kv/lib.rs
+++ b/ext/kv/lib.rs
@@ -6,6 +6,7 @@ mod interface;
 mod proto;
 pub mod remote;
 pub mod sqlite;
+mod time;
 
 use std::borrow::Cow;
 use std::cell::RefCell;
@@ -14,7 +15,6 @@ use std::rc::Rc;
 
 use base64::prelude::BASE64_URL_SAFE;
 use base64::Engine;
-use chrono::Utc;
 use codec::decode_key;
 use codec::encode_key;
 use deno_core::anyhow::Context;
@@ -610,7 +610,7 @@ async fn op_kv_atomic_write<DBH>(
 where
   DBH: DatabaseHandler + 'static,
 {
-  let current_timestamp = Utc::now().timestamp_millis() as u64;
+  let current_timestamp = time::utc_now().timestamp_millis() as u64;
   let db = {
     let state = state.borrow();
     let resource =
diff --git a/ext/kv/remote.rs b/ext/kv/remote.rs
index 38b233cc3..0a061b35b 100644
--- a/ext/kv/remote.rs
+++ b/ext/kv/remote.rs
@@ -426,7 +426,7 @@ async fn metadata_refresh_task(
       metadata
         .expires_at
         .timestamp_millis()
-        .saturating_sub(Utc::now().timestamp_millis()),
+        .saturating_sub(crate::time::utc_now().timestamp_millis()),
     )
     .unwrap_or_default();
 
diff --git a/ext/kv/time.rs b/ext/kv/time.rs
new file mode 100644
index 000000000..60375818b
--- /dev/null
+++ b/ext/kv/time.rs
@@ -0,0 +1,19 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+
+/// Identical to chrono::Utc::now() but without the system "clock"
+/// feature flag.
+///
+/// The "clock" feature flag pulls in the "iana-time-zone" crate
+/// which links to macOS's "CoreFoundation" framework which increases
+/// startup time for the CLI.
+pub fn utc_now() -> chrono::DateTime<chrono::Utc> {
+  let now = std::time::SystemTime::now()
+    .duration_since(std::time::UNIX_EPOCH)
+    .expect("system time before Unix epoch");
+  let naive = chrono::NaiveDateTime::from_timestamp_opt(
+    now.as_secs() as i64,
+    now.subsec_nanos(),
+  )
+  .unwrap();
+  chrono::DateTime::from_naive_utc_and_offset(naive, chrono::Utc)
+}
-- 
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