From 87f80ff6be5e2a132b583a9c380fff5db3cb2b07 Mon Sep 17 00:00:00 2001
From: David Sherret <dsherret@users.noreply.github.com>
Date: Sat, 20 Aug 2022 11:31:33 -0400
Subject: feat(unstable): initial support for npm specifiers (#15484)
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Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
---
 cli/cache/mod.rs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'cli/cache')

diff --git a/cli/cache/mod.rs b/cli/cache/mod.rs
index 7482826cf..d7cf8aca4 100644
--- a/cli/cache/mod.rs
+++ b/cli/cache/mod.rs
@@ -2,7 +2,9 @@
 
 use crate::errors::get_error_class_name;
 use crate::file_fetcher::FileFetcher;
+use crate::npm;
 
+use deno_core::futures;
 use deno_core::futures::FutureExt;
 use deno_core::ModuleSpecifier;
 use deno_graph::source::CacheInfo;
@@ -53,6 +55,10 @@ impl FetchCacher {
 
 impl Loader for FetchCacher {
   fn get_cache_info(&self, specifier: &ModuleSpecifier) -> Option<CacheInfo> {
+    if specifier.scheme() == "npm" {
+      return None;
+    }
+
     let local = self.file_fetcher.get_local_path(specifier)?;
     if local.is_file() {
       let emit = self
@@ -74,6 +80,17 @@ impl Loader for FetchCacher {
     specifier: &ModuleSpecifier,
     is_dynamic: bool,
   ) -> LoadFuture {
+    if specifier.scheme() == "npm" {
+      return Box::pin(futures::future::ready(
+        match npm::NpmPackageReference::from_specifier(specifier) {
+          Ok(_) => Ok(Some(deno_graph::source::LoadResponse::External {
+            specifier: specifier.clone(),
+          })),
+          Err(err) => Err(err),
+        },
+      ));
+    }
+
     let specifier = specifier.clone();
     let mut permissions = if is_dynamic {
       self.dynamic_permissions.clone()
-- 
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