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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
//! Code for global npm cache resolution.
use std::collections::HashSet;
use std::path::Path;
use std::path::PathBuf;
use std::sync::Arc;
use deno_ast::ModuleSpecifier;
use deno_core::error::AnyError;
use deno_core::futures::future::BoxFuture;
use deno_core::futures::FutureExt;
use deno_core::url::Url;
use deno_runtime::deno_node::NodeResolutionMode;
use crate::args::Lockfile;
use crate::npm::cache::NpmPackageCacheFolderId;
use crate::npm::resolution::NpmResolution;
use crate::npm::resolution::NpmResolutionSnapshot;
use crate::npm::resolvers::common::cache_packages;
use crate::npm::NpmCache;
use crate::npm::NpmPackageId;
use crate::npm::NpmPackageReq;
use crate::npm::NpmResolutionPackage;
use crate::npm::RealNpmRegistryApi;
use super::common::ensure_registry_read_permission;
use super::common::types_package_name;
use super::common::InnerNpmPackageResolver;
/// Resolves packages from the global npm cache.
#[derive(Debug, Clone)]
pub struct GlobalNpmPackageResolver {
cache: NpmCache,
resolution: Arc<NpmResolution>,
registry_url: Url,
}
impl GlobalNpmPackageResolver {
pub fn new(
cache: NpmCache,
api: RealNpmRegistryApi,
initial_snapshot: Option<NpmResolutionSnapshot>,
) -> Self {
let registry_url = api.base_url().to_owned();
let resolution = Arc::new(NpmResolution::new(api, initial_snapshot));
Self {
cache,
resolution,
registry_url,
}
}
fn package_folder(&self, id: &NpmPackageId) -> PathBuf {
let folder_id = self
.resolution
.resolve_package_cache_folder_id_from_id(id)
.unwrap();
self
.cache
.package_folder_for_id(&folder_id, &self.registry_url)
}
fn resolve_types_package(
&self,
package_name: &str,
referrer_pkg_id: &NpmPackageCacheFolderId,
) -> Result<NpmResolutionPackage, AnyError> {
let types_name = types_package_name(package_name);
self
.resolution
.resolve_package_from_package(&types_name, referrer_pkg_id)
}
}
impl InnerNpmPackageResolver for GlobalNpmPackageResolver {
fn resolve_package_folder_from_deno_module(
&self,
pkg_req: &NpmPackageReq,
) -> Result<PathBuf, AnyError> {
let pkg = self.resolution.resolve_package_from_deno_module(pkg_req)?;
Ok(self.package_folder(&pkg.id))
}
fn resolve_package_folder_from_package(
&self,
name: &str,
referrer: &ModuleSpecifier,
mode: NodeResolutionMode,
) -> Result<PathBuf, AnyError> {
let referrer_pkg_id = self
.cache
.resolve_package_folder_id_from_specifier(referrer, &self.registry_url)?;
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)?
};
Ok(self.package_folder(&pkg.id))
}
fn resolve_package_folder_from_specifier(
&self,
specifier: &ModuleSpecifier,
) -> Result<PathBuf, AnyError> {
let pkg_folder_id = self.cache.resolve_package_folder_id_from_specifier(
specifier,
&self.registry_url,
)?;
Ok(
self
.cache
.package_folder_for_id(&pkg_folder_id, &self.registry_url),
)
}
fn package_size(&self, package_id: &NpmPackageId) -> Result<u64, AnyError> {
let package_folder = self.package_folder(package_id);
Ok(crate::util::fs::dir_size(&package_folder)?)
}
fn has_packages(&self) -> bool {
self.resolution.has_packages()
}
fn add_package_reqs(
&self,
packages: Vec<NpmPackageReq>,
) -> BoxFuture<'static, Result<(), AnyError>> {
let resolver = self.clone();
async move { resolver.resolution.add_package_reqs(packages).await }.boxed()
}
fn set_package_reqs(
&self,
packages: HashSet<NpmPackageReq>,
) -> BoxFuture<'static, Result<(), AnyError>> {
let resolver = self.clone();
async move { resolver.resolution.set_package_reqs(packages).await }.boxed()
}
fn cache_packages(&self) -> BoxFuture<'static, Result<(), AnyError>> {
let resolver = self.clone();
async move { cache_packages_in_resolver(&resolver).await }.boxed()
}
fn ensure_read_permission(&self, path: &Path) -> Result<(), AnyError> {
let registry_path = self.cache.registry_folder(&self.registry_url);
ensure_registry_read_permission(®istry_path, path)
}
fn snapshot(&self) -> NpmResolutionSnapshot {
self.resolution.snapshot()
}
fn lock(&self, lockfile: &mut Lockfile) -> Result<(), AnyError> {
let snapshot = self.resolution.snapshot();
self.resolution.lock(lockfile, &snapshot)
}
}
async fn cache_packages_in_resolver(
resolver: &GlobalNpmPackageResolver,
) -> Result<(), AnyError> {
let package_partitions = resolver.resolution.all_packages_partitioned();
cache_packages(
package_partitions.packages,
&resolver.cache,
&resolver.registry_url,
)
.await?;
// create the copy package folders
for copy in package_partitions.copy_packages {
resolver.cache.ensure_copy_package(
©.get_package_cache_folder_id(),
&resolver.registry_url,
)?;
}
Ok(())
}
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