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denoland-deno/cli/npm/resolvers/global.rs

117 lines
3 KiB
Rust

// Copyright 2018-2022 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 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 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::NpmRegistryApi;
use super::common::ensure_registry_read_permission;
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: NpmRegistryApi,
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 {
self.cache.package_folder(id, &self.registry_url)
}
}
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,
) -> Result<PathBuf, AnyError> {
let referrer_pkg_id = self
.cache
.resolve_package_id_from_specifier(referrer, &self.registry_url)?;
let pkg = 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_id = self
.cache
.resolve_package_id_from_specifier(specifier, &self.registry_url)?;
Ok(self.package_folder(&pkg_id))
}
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?;
cache_packages(
resolver.resolution.all_packages(),
&resolver.cache,
&resolver.registry_url,
)
.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(&registry_path, path)
}
fn snapshot(&self) -> NpmResolutionSnapshot {
self.resolution.snapshot()
}
}