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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
//! Code for global npm cache resolution.
use std::path::Path;
use std::path::PathBuf;
use std::sync::Arc;
use async_trait::async_trait;
use deno_ast::ModuleSpecifier;
use deno_core::error::AnyError;
use deno_core::url::Url;
use deno_npm::NpmPackageCacheFolderId;
use deno_npm::NpmPackageId;
use deno_npm::NpmSystemInfo;
use deno_runtime::deno_fs::FileSystem;
use deno_runtime::deno_node::errors::PackageFolderResolveError;
use deno_runtime::deno_node::errors::PackageNotFoundError;
use deno_runtime::deno_node::errors::ReferrerNotFoundError;
use deno_runtime::deno_node::NodePermissions;
use super::super::cache::NpmCache;
use super::super::cache::TarballCache;
use super::super::resolution::NpmResolution;
use super::common::cache_packages;
use super::common::NpmPackageFsResolver;
use super::common::RegistryReadPermissionChecker;
/// Resolves packages from the global npm cache.
#[derive(Debug)]
pub struct GlobalNpmPackageResolver {
cache: Arc<NpmCache>,
tarball_cache: Arc<TarballCache>,
resolution: Arc<NpmResolution>,
system_info: NpmSystemInfo,
registry_read_permission_checker: RegistryReadPermissionChecker,
}
impl GlobalNpmPackageResolver {
pub fn new(
cache: Arc<NpmCache>,
fs: Arc<dyn FileSystem>,
tarball_cache: Arc<TarballCache>,
resolution: Arc<NpmResolution>,
system_info: NpmSystemInfo,
) -> Self {
Self {
registry_read_permission_checker: RegistryReadPermissionChecker::new(
fs,
cache.root_folder(),
),
cache,
tarball_cache,
resolution,
system_info,
}
}
}
#[async_trait(?Send)]
impl NpmPackageFsResolver for GlobalNpmPackageResolver {
fn root_dir_url(&self) -> &Url {
self.cache.root_dir_url()
}
fn node_modules_path(&self) -> Option<&PathBuf> {
None
}
fn maybe_package_folder(&self, id: &NpmPackageId) -> Option<PathBuf> {
let folder_id = self
.resolution
.resolve_pkg_cache_folder_id_from_pkg_id(id)?;
Some(self.cache.package_folder_for_id(&folder_id))
}
fn resolve_package_folder_from_package(
&self,
name: &str,
referrer: &ModuleSpecifier,
) -> Result<PathBuf, PackageFolderResolveError> {
use deno_npm::resolution::PackageNotFoundFromReferrerError;
let Some(referrer_cache_folder_id) = self
.cache
.resolve_package_folder_id_from_specifier(referrer)
else {
return Err(
ReferrerNotFoundError {
referrer: referrer.clone(),
referrer_extra: None,
}
.into(),
);
};
let resolve_result = self
.resolution
.resolve_package_from_package(name, &referrer_cache_folder_id);
match resolve_result {
Ok(pkg) => match self.maybe_package_folder(&pkg.id) {
Some(folder) => Ok(folder),
None => Err(
PackageNotFoundError {
package_name: name.to_string(),
referrer: referrer.clone(),
referrer_extra: Some(format!(
"{} -> {}",
referrer_cache_folder_id,
pkg.id.as_serialized()
)),
}
.into(),
),
},
Err(err) => match *err {
PackageNotFoundFromReferrerError::Referrer(cache_folder_id) => Err(
ReferrerNotFoundError {
referrer: referrer.clone(),
referrer_extra: Some(cache_folder_id.to_string()),
}
.into(),
),
PackageNotFoundFromReferrerError::Package {
name,
referrer: cache_folder_id_referrer,
} => Err(
PackageNotFoundError {
package_name: name,
referrer: referrer.clone(),
referrer_extra: Some(cache_folder_id_referrer.to_string()),
}
.into(),
),
},
}
}
fn resolve_package_cache_folder_id_from_specifier(
&self,
specifier: &ModuleSpecifier,
) -> Result<Option<NpmPackageCacheFolderId>, AnyError> {
Ok(
self
.cache
.resolve_package_folder_id_from_specifier(specifier),
)
}
async fn cache_packages(&self) -> Result<(), AnyError> {
let package_partitions = self
.resolution
.all_system_packages_partitioned(&self.system_info);
cache_packages(package_partitions.packages, &self.tarball_cache).await?;
// create the copy package folders
for copy in package_partitions.copy_packages {
self
.cache
.ensure_copy_package(©.get_package_cache_folder_id())?;
}
Ok(())
}
fn ensure_read_permission(
&self,
permissions: &mut dyn NodePermissions,
path: &Path,
) -> Result<(), AnyError> {
self
.registry_read_permission_checker
.ensure_registry_read_permission(permissions, path)
}
}
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