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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::anyhow::bail;
use deno_core::error::AnyError;
use deno_core::url::Url;
use deno_npm::resolution::PackageNotFoundFromReferrerError;
use deno_npm::NpmPackageCacheFolderId;
use deno_npm::NpmPackageId;
use deno_npm::NpmResolutionPackage;
use deno_npm::NpmSystemInfo;
use deno_runtime::deno_fs::FileSystem;
use deno_runtime::deno_node::NodePermissions;
use deno_runtime::deno_node::NodeResolutionMode;
use crate::http_util::HttpClient;
use super::super::super::common::types_package_name;
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,
}
}
fn resolve_types_package(
&self,
package_name: &str,
referrer_pkg_id: &NpmPackageCacheFolderId,
) -> Result<NpmResolutionPackage, Box<PackageNotFoundFromReferrerError>> {
let types_name = types_package_name(package_name);
self
.resolution
.resolve_package_from_package(&types_name, referrer_pkg_id)
}
}
#[async_trait]
impl NpmPackageFsResolver for GlobalNpmPackageResolver {
fn root_dir_url(&self) -> &Url {
self.cache.root_dir_url()
}
fn node_modules_path(&self) -> Option<&PathBuf> {
None
}
fn package_folder(&self, id: &NpmPackageId) -> Result<PathBuf, AnyError> {
let folder_id = self
.resolution
.resolve_pkg_cache_folder_id_from_pkg_id(id)
.unwrap();
Ok(self.cache.package_folder_for_id(&folder_id))
}
fn resolve_package_folder_from_package(
&self,
name: &str,
referrer: &ModuleSpecifier,
mode: NodeResolutionMode,
) -> Result<PathBuf, AnyError> {
let Some(referrer_pkg_id) = self
.cache
.resolve_package_folder_id_from_specifier(referrer)
else {
bail!("could not find npm package for '{}'", referrer);
};
let pkg = if mode.is_types() && !name.starts_with("@types/") {
// attempt to resolve the types package first, then fallback to the regular package
match self.resolve_types_package(name, &referrer_pkg_id) {
Ok(pkg) => pkg,
Err(_) => self
.resolution
.resolve_package_from_package(name, &referrer_pkg_id)?,
}
} else {
self
.resolution
.resolve_package_from_package(name, &referrer_pkg_id)?
};
self.package_folder(&pkg.id)
}
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,
http_client: &Arc<HttpClient>,
) -> Result<(), AnyError> {
let package_partitions = self
.resolution
.all_system_packages_partitioned(&self.system_info);
cache_packages(
package_partitions.packages,
&self.tarball_cache,
http_client,
)
.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: &dyn NodePermissions,
path: &Path,
) -> Result<(), AnyError> {
self
.registry_read_permission_checker
.ensure_registry_read_permission(permissions, path)
}
}
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