fix(cli): don't store blob and data urls in the module cache (#18261)

cli/file_fetcher.rs

@@ -50,10 +50,6 @@ pub const SUPPORTED_SCHEMES: [&str; 5] =
 /// A structure representing a source file.
 #[derive(Debug, Clone, Eq, PartialEq)]
 pub struct File {
-  /// The path to the local version of the source file.  For local files this
-  /// will be the direct path to that file.  For remote files, it will be the
-  /// path to the file in the HTTP cache.
-  pub local: PathBuf,
   /// For remote files, if there was an `X-TypeScript-Type` header, the parsed
   /// out value of that header.
   pub maybe_types: Option<String>,
@@ -90,13 +86,12 @@ fn fetch_local(specifier: &ModuleSpecifier) -> Result<File, AnyError> {
   let local = specifier.to_file_path().map_err(|_| {
     uri_error(format!("Invalid file path.\n  Specifier: {specifier}"))
   })?;
-  let bytes = fs::read(&local)?;
+  let bytes = fs::read(local)?;
   let charset = text_encoding::detect_charset(&bytes).to_string();
   let source = get_source_from_bytes(bytes, Some(charset))?;
   let media_type = MediaType::from_specifier(specifier);
 
   Ok(File {
-    local,
     maybe_types: None,
     media_type,
     source: source.into(),
@@ -218,13 +213,6 @@ impl FileFetcher {
     bytes: Vec<u8>,
     headers: &HashMap<String, String>,
   ) -> Result<File, AnyError> {
-    let local =
-      self
-        .http_cache
-        .get_cache_filename(specifier)
-        .ok_or_else(|| {
-          generic_error("Cannot convert specifier to cached filename.")
-        })?;
     let maybe_content_type = headers.get("content-type");
     let (media_type, maybe_charset) =
       map_content_type(specifier, maybe_content_type);
@@ -238,7 +226,6 @@ impl FileFetcher {
     };
 
     Ok(File {
-      local,
       maybe_types,
       media_type,
       source: source.into(),
@@ -290,39 +277,12 @@ impl FileFetcher {
     specifier: &ModuleSpecifier,
   ) -> Result<File, AnyError> {
     debug!("FileFetcher::fetch_data_url() - specifier: {}", specifier);
-    match self.fetch_cached(specifier, 0) {
-      Ok(Some(file)) => return Ok(file),
-      Ok(None) => {}
-      Err(err) => return Err(err),
-    }
-
-    if self.cache_setting == CacheSetting::Only {
-      return Err(custom_error(
-        "NotCached",
-        format!(
-          "Specifier not found in cache: \"{specifier}\", --cached-only is specified."
-        ),
-      ));
-    }
-
     let (source, content_type) = get_source_from_data_url(specifier)?;
     let (media_type, _) = map_content_type(specifier, Some(&content_type));
-
-    let local =
-      self
-        .http_cache
-        .get_cache_filename(specifier)
-        .ok_or_else(|| {
-          generic_error("Cannot convert specifier to cached filename.")
-        })?;
     let mut headers = HashMap::new();
     headers.insert("content-type".to_string(), content_type);
-    self
-      .http_cache
-      .set(specifier, headers.clone(), source.as_bytes())?;
 
     Ok(File {
-      local,
       maybe_types: None,
       media_type,
       source: source.into(),
@@ -337,21 +297,6 @@ impl FileFetcher {
     specifier: &ModuleSpecifier,
   ) -> Result<File, AnyError> {
     debug!("FileFetcher::fetch_blob_url() - specifier: {}", specifier);
-    match self.fetch_cached(specifier, 0) {
-      Ok(Some(file)) => return Ok(file),
-      Ok(None) => {}
-      Err(err) => return Err(err),
-    }
-
-    if self.cache_setting == CacheSetting::Only {
-      return Err(custom_error(
-        "NotCached",
-        format!(
-          "Specifier not found in cache: \"{specifier}\", --cached-only is specified."
-        ),
-      ));
-    }
-
     let blob = {
       let blob_store = self.blob_store.borrow();
       blob_store
@@ -370,22 +315,10 @@ impl FileFetcher {
     let (media_type, maybe_charset) =
       map_content_type(specifier, Some(&content_type));
     let source = get_source_from_bytes(bytes, maybe_charset)?;
-
-    let local =
-      self
-        .http_cache
-        .get_cache_filename(specifier)
-        .ok_or_else(|| {
-          generic_error("Cannot convert specifier to cached filename.")
-        })?;
     let mut headers = HashMap::new();
     headers.insert("content-type".to_string(), content_type);
-    self
-      .http_cache
-      .set(specifier, headers.clone(), source.as_bytes())?;
 
     Ok(File {
-      local,
       maybe_types: None,
       media_type,
       source: source.into(),
@@ -562,17 +495,9 @@ impl FileFetcher {
       // disk changing effecting things like workers and dynamic imports.
       fetch_local(specifier)
     } else if scheme == "data" {
-      let result = self.fetch_data_url(specifier);
-      if let Ok(file) = &result {
-        self.cache.insert(specifier.clone(), file.clone());
-      }
-      result
+      self.fetch_data_url(specifier)
     } else if scheme == "blob" {
-      let result = self.fetch_blob_url(specifier).await;
-      if let Ok(file) = &result {
-        self.cache.insert(specifier.clone(), file.clone());
-      }
-      result
+      self.fetch_blob_url(specifier).await
     } else if !self.allow_remote {
       Err(custom_error(
         "NoRemote",
@@ -1037,7 +962,6 @@ mod tests {
       ModuleSpecifier::from_file_path(local.as_os_str().to_str().unwrap())
         .unwrap();
     let file = File {
-      local,
       maybe_types: None,
       media_type: MediaType::TypeScript,
       source: "some source code".into(),

cli/proc_state.rs

@@ -136,6 +136,7 @@ impl ProcState {
   /// Reset all runtime state to its default. This should be used on file
   /// watcher restarts.
   pub fn reset_for_file_watcher(&mut self) {
+    self.blob_store.clear();
     self.0 = Arc::new(Inner {
       dir: self.dir.clone(),
       options: self.options.clone(),

cli/tests/integration/watcher_tests.rs

@@ -1121,6 +1121,46 @@ fn test_watch_unload_handler_error_on_drop() {
   check_alive_then_kill(child);
 }
 
+#[test]
+fn run_watch_blob_urls_reset() {
+  let _g = util::http_server();
+  let t = TempDir::new();
+  let file_to_watch = t.path().join("file_to_watch.js");
+  let file_content = r#"
+    const prevUrl = localStorage.getItem("url");
+    if (prevUrl == null) {
+      console.log("first run, storing blob url");
+      const url = URL.createObjectURL(
+        new Blob(["export {}"], { type: "application/javascript" }),
+      );
+      await import(url); // this shouldn't insert into the fs module cache
+      localStorage.setItem("url", url);
+    } else {
+      await import(prevUrl)
+        .then(() => console.log("importing old blob url incorrectly works"))
+        .catch(() => console.log("importing old blob url correctly failed"));
+    }
+    "#;
+  write(&file_to_watch, file_content).unwrap();
+  let mut child = util::deno_cmd()
+    .current_dir(util::testdata_path())
+    .arg("run")
+    .arg("--watch")
+    .arg(&file_to_watch)
+    .env("NO_COLOR", "1")
+    .stdout(std::process::Stdio::piped())
+    .stderr(std::process::Stdio::piped())
+    .spawn()
+    .unwrap();
+  let (mut stdout_lines, mut stderr_lines) = child_lines(&mut child);
+  wait_contains("first run, storing blob url", &mut stdout_lines);
+  wait_contains("finished", &mut stderr_lines);
+  write(&file_to_watch, file_content).unwrap();
+  wait_contains("importing old blob url correctly failed", &mut stdout_lines);
+  wait_contains("finished", &mut stderr_lines);
+  check_alive_then_kill(child);
+}
+
 // Regression test for https://github.com/denoland/deno/issues/15465.
 #[test]
 fn run_watch_reload_once() {

cli/tools/doc.rs

@@ -17,7 +17,6 @@ use deno_core::resolve_path;
 use deno_core::resolve_url_or_path;
 use deno_doc as doc;
 use deno_graph::ModuleSpecifier;
-use std::path::PathBuf;
 
 pub async fn print_docs(
   flags: Flags,
@@ -69,7 +68,6 @@ pub async fn print_docs(
       let root_specifier =
         resolve_path("./$deno$doc.ts", ps.options.initial_cwd()).unwrap();
       let root = File {
-        local: PathBuf::from("./$deno$doc.ts"),
         maybe_types: None,
         media_type: MediaType::TypeScript,
         source: format!("export * from \"{module_specifier}\";").into(),

cli/tools/run.rs

@@ -72,7 +72,6 @@ pub async fn run_from_stdin(flags: Flags) -> Result<i32, AnyError> {
   std::io::stdin().read_to_end(&mut source)?;
   // Create a dummy source file.
   let source_file = File {
-    local: main_module.clone().to_file_path().unwrap(),
     maybe_types: None,
     media_type: MediaType::TypeScript,
     source: String::from_utf8(source)?.into(),
@@ -144,7 +143,6 @@ pub async fn eval_command(
   .into_bytes();
 
   let file = File {
-    local: main_module.clone().to_file_path().unwrap(),
     maybe_types: None,
     media_type: MediaType::Unknown,
     source: String::from_utf8(source_code)?.into(),

cli/tools/test.rs

@@ -1000,7 +1000,6 @@ fn extract_files_from_regex_blocks(
           .unwrap_or(file_specifier);
 
       Some(File {
-        local: file_specifier.to_file_path().unwrap(),
         maybe_types: None,
         media_type: file_media_type,
         source: file_source.into(),

ext/web/blob.rs

@@ -79,6 +79,11 @@ impl BlobStore {
     let mut blob_store = self.object_urls.lock();
     blob_store.remove(url);
   }
+
+  pub fn clear(&self) {
+    self.parts.lock().clear();
+    self.object_urls.lock().clear();
+  }
 }
 
 #[derive(Debug)]