feat: Support adding npm packages to the eszip (#192)

Cargo.toml

@@ -45,13 +45,15 @@ default = ["sha256"]
 
 [dependencies]
 anyhow = "1"
+async-trait = "0.1.68"
 base64 = "0.21.0"
 deno_ast = { workspace = true }
 deno_graph = { workspace = true }
 deno_npm = "0.21.0"
 deno_semver = "0.5.4"
 futures = "0.3.26"
 hashlink = "0.8.2"
+indexmap = "2"
 serde = { workspace = true }
 serde_json = "1"
 sha2 = {version = "0.10.1", optional = true}

benches/source_hash_function.rs

@@ -183,6 +183,7 @@ async fn build_eszip(mb: usize) -> EszipV2 {
     transpile_options: TranspileOptions::default(),
     emit_options: EmitOptions::default(),
     relative_file_base: None,
+    npm_packages: None,
   })
   .unwrap()
 }

lib/lib.rs

@@ -346,6 +346,7 @@ pub async fn build_eszip(
     transpile_options: Default::default(),
     emit_options: Default::default(),
     relative_file_base: None,
+    npm_packages: None,
   })
   .map_err(|e| js_sys::Error::new(&e.to_string()))?;
   if let Some((import_map_specifier, import_map_content)) =

src/examples/builder.rs

@@ -76,6 +76,7 @@ async fn main() {
     transpile_options: TranspileOptions::default(),
     emit_options: EmitOptions::default(),
     relative_file_base: None,
+    npm_packages: None,
   })
   .unwrap();
   if let Some((import_map_specifier, import_map_content)) =

src/testdata/source/child1.ts

@@ -0,0 +1 @@
+import "./grandchild1.ts";

src/testdata/source/child2.ts

@@ -0,0 +1 @@
+import "./grandchild2.ts";

src/testdata/source/grandchild1.ts

@@ -0,0 +1 @@
+export const grandchild1 = "grandchild1";

src/testdata/source/grandchild2.ts

@@ -0,0 +1,2 @@
+
+export const grandchild2 = "grandchild2";

src/testdata/source/npm_imports_main.ts

@@ -0,0 +1,4 @@
+import "npm:d/foo";
+import "./npm_imports_submodule.ts";
+import "npm:other";
+import "npm:a@^1.2/foo";

src/testdata/source/npm_imports_submodule.ts

@@ -0,0 +1,2 @@
+import "npm:a@^1.2/bar";
+import "npm:other/bar";

src/testdata/source/parent.ts

@@ -0,0 +1,2 @@
+import "./child1.ts";
+import "./child2.ts";