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https://github.com/denoland/deno.git
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a6ca4d0d61
This changes npm specifiers to be handled by deno_graph and resolved to an npm package name and version when the specifier is encountered. It also slightly changes how npm specifier resolution occurs—previously it would collect all the npm specifiers and resolve them all at once, but now it resolves them on the fly as they are encountered in the module graph. https://github.com/denoland/deno_graph/pull/232 --------- Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
133 lines
3.4 KiB
Rust
133 lines
3.4 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 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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cache_info_enabled: bool,
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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: Arc<FileFetcher>,
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root_permissions: PermissionsContainer,
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dynamic_permissions: PermissionsContainer,
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) -> Self {
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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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cache_info_enabled: false,
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}
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}
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/// The cache information takes a bit of time to fetch and it's
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/// not always necessary. It should only be enabled for deno info.
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pub fn enable_loading_cache_info(&mut self) {
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self.cache_info_enabled = true;
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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 !self.cache_info_enabled {
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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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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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let specifier = specifier.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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