2 files changed, 39 insertions, 23 deletions
diff --git a/op_crates/fetch/Cargo.toml b/op_crates/fetch/Cargo.toml
index feece79d5..9bb9a4a76 100644
--- a/op_crates/fetch/Cargo.toml
+++ b/op_crates/fetch/Cargo.toml
@@ -2,7 +2,7 @@
 
 [package]
 name = "deno_fetch"
-version = "0.2.0"
+version = "0.3.0"
 edition = "2018"
 description = "provides fetch Web API to deno_core"
 authors = ["the Deno authors"]
diff --git a/op_crates/fetch/lib.rs b/op_crates/fetch/lib.rs
index 5a314f752..49d951d8f 100644
--- a/op_crates/fetch/lib.rs
+++ b/op_crates/fetch/lib.rs
@@ -27,40 +27,56 @@ use std::cell::RefCell;
 use std::convert::From;
 use std::fs::File;
 use std::io::Read;
-use std::path::Path;
 use std::path::PathBuf;
 use std::rc::Rc;
 
 pub use reqwest; // Re-export reqwest
 
+/// Execute this crates' JS source files.
 pub fn init(isolate: &mut JsRuntime) {
-  let manifest_dir = Path::new(env!("CARGO_MANIFEST_DIR"));
   let files = vec![
-    manifest_dir.join("01_fetch_util.js"),
-    manifest_dir.join("03_dom_iterable.js"),
-    manifest_dir.join("11_streams.js"),
-    manifest_dir.join("20_headers.js"),
-    manifest_dir.join("26_fetch.js"),
+    (
+      "deno:op_crates/fetch/01_fetch_util.js",
+      include_str!("01_fetch_util.js"),
+    ),
+    (
+      "deno:op_crates/fetch/03_dom_iterable.js",
+      include_str!("03_dom_iterable.js"),
+    ),
+    (
+      "deno:op_crates/fetch/11_streams.js",
+      include_str!("11_streams.js"),
+    ),
+    (
+      "deno:op_crates/fetch/20_headers.js",
+      include_str!("20_headers.js"),
+    ),
+    (
+      "deno:op_crates/fetch/26_fetch.js",
+      include_str!("26_fetch.js"),
+    ),
   ];
-  // TODO(nayeemrmn): https://github.com/rust-lang/cargo/issues/3946 to get the
-  // workspace root.
-  let display_root = manifest_dir.parent().unwrap().parent().unwrap();
-  for file in files {
-    println!("cargo:rerun-if-changed={}", file.display());
-    let display_path = file.strip_prefix(display_root).unwrap();
-    let display_path_str = display_path.display().to_string();
-    isolate
-      .execute(
-        &("deno:".to_string() + &display_path_str.replace('\\', "/")),
-        &std::fs::read_to_string(&file).unwrap(),
-      )
-      .unwrap();
+  for (url, source_code) in files {
+    isolate.execute(url, source_code).unwrap();
   }
 }
 
 pub trait FetchPermissions {
-  fn check_net_url(&self, url: &Url) -> Result<(), AnyError>;
-  fn check_read(&self, p: &PathBuf) -> Result<(), AnyError>;
+  fn check_net_url(&self, _url: &Url) -> Result<(), AnyError>;
+  fn check_read(&self, _p: &PathBuf) -> Result<(), AnyError>;
+}
+
+/// For use with `op_fetch` when the user does not want permissions.
+pub struct NoFetchPermissions;
+
+impl FetchPermissions for NoFetchPermissions {
+  fn check_net_url(&self, _url: &Url) -> Result<(), AnyError> {
+    Ok(())
+  }
+
+  fn check_read(&self, _p: &PathBuf) -> Result<(), AnyError> {
+    Ok(())
+  }
 }
 
 pub fn get_declaration() -> PathBuf {