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https://github.com/denoland/deno.git
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fac6447815
Turns out we were cloning permissions which after prompting were discarded, so the state of permissions was never preserved. To handle that we need to store all permissions behind "Arc<Mutex<>>" (because there are situations where we need to send them to other thread). Testing and benching code still uses "Permissions" in most places - it's undesirable to share the same permission set between various test/bench files - otherwise granting or revoking permissions in one file would influence behavior of other test files.
140 lines
3.5 KiB
Rust
140 lines
3.5 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use crate::errors::get_error_class_name;
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use crate::file_fetcher::FileFetcher;
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use crate::npm;
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use deno_core::futures;
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use deno_core::futures::FutureExt;
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use deno_core::ModuleSpecifier;
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use deno_graph::source::CacheInfo;
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use deno_graph::source::LoadFuture;
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use deno_graph::source::LoadResponse;
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use deno_graph::source::Loader;
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use deno_runtime::permissions::PermissionsContainer;
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use std::sync::Arc;
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mod check;
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mod common;
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mod deno_dir;
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mod disk_cache;
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mod emit;
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mod http_cache;
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mod incremental;
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mod node;
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mod parsed_source;
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pub use check::TypeCheckCache;
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pub use common::FastInsecureHasher;
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pub use deno_dir::DenoDir;
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pub use disk_cache::DiskCache;
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pub use emit::EmitCache;
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pub use http_cache::CachedUrlMetadata;
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pub use http_cache::HttpCache;
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pub use incremental::IncrementalCache;
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pub use node::NodeAnalysisCache;
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pub use parsed_source::ParsedSourceCache;
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/// Permissions used to save a file in the disk caches.
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pub const CACHE_PERM: u32 = 0o644;
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/// A "wrapper" for the FileFetcher and DiskCache for the Deno CLI that provides
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/// a concise interface to the DENO_DIR when building module graphs.
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pub struct FetchCacher {
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emit_cache: EmitCache,
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dynamic_permissions: PermissionsContainer,
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file_fetcher: Arc<FileFetcher>,
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root_permissions: PermissionsContainer,
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}
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impl FetchCacher {
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pub fn new(
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emit_cache: EmitCache,
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file_fetcher: FileFetcher,
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root_permissions: PermissionsContainer,
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dynamic_permissions: PermissionsContainer,
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) -> Self {
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let file_fetcher = Arc::new(file_fetcher);
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Self {
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emit_cache,
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dynamic_permissions,
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file_fetcher,
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root_permissions,
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}
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}
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}
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impl Loader for FetchCacher {
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fn get_cache_info(&self, specifier: &ModuleSpecifier) -> Option<CacheInfo> {
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if specifier.scheme() == "npm" {
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return None;
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}
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let local = self.file_fetcher.get_local_path(specifier)?;
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if local.is_file() {
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let emit = self
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.emit_cache
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.get_emit_filepath(specifier)
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.filter(|p| p.is_file());
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Some(CacheInfo {
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local: Some(local),
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emit,
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map: None,
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})
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} else {
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None
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}
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}
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fn load(
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&mut self,
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specifier: &ModuleSpecifier,
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is_dynamic: bool,
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) -> LoadFuture {
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if specifier.scheme() == "npm" {
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return Box::pin(futures::future::ready(
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match npm::NpmPackageReference::from_specifier(specifier) {
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Ok(_) => Ok(Some(deno_graph::source::LoadResponse::External {
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specifier: specifier.clone(),
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})),
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Err(err) => Err(err),
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},
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));
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}
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let specifier = specifier.clone();
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let permissions = if is_dynamic {
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self.dynamic_permissions.clone()
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} else {
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self.root_permissions.clone()
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};
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let file_fetcher = self.file_fetcher.clone();
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async move {
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file_fetcher
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.fetch(&specifier, permissions)
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.await
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.map_or_else(
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|err| {
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if let Some(err) = err.downcast_ref::<std::io::Error>() {
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if err.kind() == std::io::ErrorKind::NotFound {
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return Ok(None);
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}
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} else if get_error_class_name(&err) == "NotFound" {
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return Ok(None);
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}
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Err(err)
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},
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|file| {
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Ok(Some(LoadResponse::Module {
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specifier: file.specifier,
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maybe_headers: file.maybe_headers,
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content: file.source,
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}))
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},
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)
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}
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.boxed()
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}
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}
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