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denoland-deno/resolvers/deno/npm/byonm.rs

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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use std::borrow::Cow;
use std::path::Path;
use std::path::PathBuf;
use std::sync::Arc;
use deno_package_json::PackageJson;
use deno_package_json::PackageJsonDepValue;
use deno_path_util::url_to_file_path;
use deno_semver::package::PackageReq;
use deno_semver::Version;
use node_resolver::errors::PackageFolderResolveError;
use node_resolver::errors::PackageFolderResolveIoError;
use node_resolver::errors::PackageJsonLoadError;
use node_resolver::errors::PackageNotFoundError;
use node_resolver::load_pkg_json;
use node_resolver::NpmResolver;
use thiserror::Error;
use url::Url;
use crate::fs::DenoPkgJsonFsAdapter;
use crate::fs::DenoResolverFs;
use super::local::normalize_pkg_name_for_node_modules_deno_folder;
#[derive(Debug, Error)]
pub enum ByonmResolvePkgFolderFromDenoReqError {
#[error("Could not find \"{}\" in a node_modules folder. Deno expects the node_modules/ directory to be up to date. Did you forget to run `deno install`?", .0)]
MissingAlias(String),
#[error(transparent)]
PackageJson(#[from] PackageJsonLoadError),
#[error("Could not find a matching package for 'npm:{}' in the node_modules directory. Ensure you have all your JSR and npm dependencies listed in your deno.json or package.json, then run `deno install`. Alternatively, turn on auto-install by specifying `\"nodeModulesDir\": \"auto\"` in your deno.json file.", .0)]
UnmatchedReq(PackageReq),
#[error(transparent)]
Io(#[from] std::io::Error),
}
pub struct ByonmNpmResolverCreateOptions<Fs: DenoResolverFs> {
pub fs: Fs,
// todo(dsherret): investigate removing this
pub root_node_modules_dir: Option<PathBuf>,
}
#[derive(Debug)]
pub struct ByonmNpmResolver<Fs: DenoResolverFs> {
fs: Fs,
root_node_modules_dir: Option<PathBuf>,
}
impl<Fs: DenoResolverFs + Clone> Clone for ByonmNpmResolver<Fs> {
fn clone(&self) -> Self {
Self {
fs: self.fs.clone(),
root_node_modules_dir: self.root_node_modules_dir.clone(),
}
}
}
impl<Fs: DenoResolverFs> ByonmNpmResolver<Fs> {
pub fn new(options: ByonmNpmResolverCreateOptions<Fs>) -> Self {
Self {
fs: options.fs,
root_node_modules_dir: options.root_node_modules_dir,
}
}
pub fn root_node_modules_dir(&self) -> Option<&Path> {
self.root_node_modules_dir.as_deref()
}
fn load_pkg_json(
&self,
path: &Path,
) -> Result<Option<Arc<PackageJson>>, PackageJsonLoadError> {
load_pkg_json(&DenoPkgJsonFsAdapter(&self.fs), path)
}
/// Finds the ancestor package.json that contains the specified dependency.
pub fn find_ancestor_package_json_with_dep(
&self,
dep_name: &str,
referrer: &Url,
) -> Option<Arc<PackageJson>> {
let referrer_path = url_to_file_path(referrer).ok()?;
let mut current_folder = referrer_path.parent()?;
loop {
let pkg_json_path = current_folder.join("package.json");
if let Ok(Some(pkg_json)) = self.load_pkg_json(&pkg_json_path) {
if let Some(deps) = &pkg_json.dependencies {
if deps.contains_key(dep_name) {
return Some(pkg_json);
}
}
if let Some(deps) = &pkg_json.dev_dependencies {
if deps.contains_key(dep_name) {
return Some(pkg_json);
}
}
}
if let Some(parent) = current_folder.parent() {
current_folder = parent;
} else {
return None;
}
}
}
pub fn resolve_pkg_folder_from_deno_module_req(
&self,
req: &PackageReq,
referrer: &Url,
) -> Result<PathBuf, ByonmResolvePkgFolderFromDenoReqError> {
fn node_resolve_dir<Fs: DenoResolverFs>(
fs: &Fs,
alias: &str,
start_dir: &Path,
) -> std::io::Result<Option<PathBuf>> {
for ancestor in start_dir.ancestors() {
let node_modules_folder = ancestor.join("node_modules");
let sub_dir = join_package_name(&node_modules_folder, alias);
if fs.is_dir_sync(&sub_dir) {
return Ok(Some(deno_path_util::canonicalize_path_maybe_not_exists(
&sub_dir,
&|path| fs.realpath_sync(path),
)?));
}
}
Ok(None)
}
// now attempt to resolve if it's found in any package.json
let maybe_pkg_json_and_alias =
self.resolve_pkg_json_and_alias_for_req(req, referrer)?;
match maybe_pkg_json_and_alias {
Some((pkg_json, alias)) => {
// now try node resolution
if let Some(resolved) =
node_resolve_dir(&self.fs, &alias, pkg_json.dir_path())?
{
return Ok(resolved);
}
Err(ByonmResolvePkgFolderFromDenoReqError::MissingAlias(alias))
}
None => {
// now check if node_modules/.deno/ matches this constraint
if let Some(folder) = self.resolve_folder_in_root_node_modules(req) {
return Ok(folder);
}
Err(ByonmResolvePkgFolderFromDenoReqError::UnmatchedReq(
req.clone(),
))
}
}
}
fn resolve_pkg_json_and_alias_for_req(
&self,
req: &PackageReq,
referrer: &Url,
) -> Result<Option<(Arc<PackageJson>, String)>, PackageJsonLoadError> {
fn resolve_alias_from_pkg_json(
req: &PackageReq,
pkg_json: &PackageJson,
) -> Option<String> {
let deps = pkg_json.resolve_local_package_json_deps();
for (key, value) in deps {
if let Ok(value) = value {
match value {
PackageJsonDepValue::Req(dep_req) => {
if dep_req.name == req.name
&& dep_req.version_req.intersects(&req.version_req)
{
return Some(key);
}
}
PackageJsonDepValue::Workspace(_workspace) => {
if key == req.name && req.version_req.tag() == Some("workspace") {
return Some(key);
}
}
}
}
}
None
}
// attempt to resolve the npm specifier from the referrer's package.json,
if let Ok(file_path) = url_to_file_path(referrer) {
let mut current_path = file_path.as_path();
while let Some(dir_path) = current_path.parent() {
let package_json_path = dir_path.join("package.json");
if let Some(pkg_json) = self.load_pkg_json(&package_json_path)? {
if let Some(alias) =
resolve_alias_from_pkg_json(req, pkg_json.as_ref())
{
return Ok(Some((pkg_json, alias)));
}
}
current_path = dir_path;
}
}
// otherwise, fall fallback to the project's package.json
if let Some(root_node_modules_dir) = &self.root_node_modules_dir {
let root_pkg_json_path =
root_node_modules_dir.parent().unwrap().join("package.json");
if let Some(pkg_json) = self.load_pkg_json(&root_pkg_json_path)? {
if let Some(alias) = resolve_alias_from_pkg_json(req, pkg_json.as_ref())
{
return Ok(Some((pkg_json, alias)));
}
}
}
Ok(None)
}
fn resolve_folder_in_root_node_modules(
&self,
req: &PackageReq,
) -> Option<PathBuf> {
// now check if node_modules/.deno/ matches this constraint
let root_node_modules_dir = self.root_node_modules_dir.as_ref()?;
let node_modules_deno_dir = root_node_modules_dir.join(".deno");
let Ok(entries) = self.fs.read_dir_sync(&node_modules_deno_dir) else {
return None;
};
let search_prefix = format!(
"{}@",
normalize_pkg_name_for_node_modules_deno_folder(&req.name)
);
let mut best_version = None;
// example entries:
// - @denotest+add@1.0.0
// - @denotest+add@1.0.0_1
for entry in entries {
if !entry.is_directory {
continue;
}
let Some(version_and_copy_idx) = entry.name.strip_prefix(&search_prefix)
else {
continue;
};
let version = version_and_copy_idx
.rsplit_once('_')
.map(|(v, _)| v)
.unwrap_or(version_and_copy_idx);
let Ok(version) = Version::parse_from_npm(version) else {
continue;
};
if let Some(tag) = req.version_req.tag() {
let initialized_file =
node_modules_deno_dir.join(&entry.name).join(".initialized");
let Ok(contents) = self.fs.read_to_string_lossy(&initialized_file)
else {
continue;
};
let mut tags = contents.split(',').map(str::trim);
if tags.any(|t| t == tag) {
if let Some((best_version_version, _)) = &best_version {
if version > *best_version_version {
best_version = Some((version, entry.name));
}
} else {
best_version = Some((version, entry.name));
}
}
} else if req.version_req.matches(&version) {
if let Some((best_version_version, _)) = &best_version {
if version > *best_version_version {
best_version = Some((version, entry.name));
}
} else {
best_version = Some((version, entry.name));
}
}
}
best_version.map(|(_version, entry_name)| {
join_package_name(
&node_modules_deno_dir.join(entry_name).join("node_modules"),
&req.name,
)
})
}
}
impl<Fs: DenoResolverFs + Send + Sync + std::fmt::Debug> NpmResolver
for ByonmNpmResolver<Fs>
{
fn resolve_package_folder_from_package(
&self,
name: &str,
referrer: &Url,
) -> Result<PathBuf, PackageFolderResolveError> {
fn inner<Fs: DenoResolverFs>(
fs: &Fs,
name: &str,
referrer: &Url,
) -> Result<PathBuf, PackageFolderResolveError> {
let maybe_referrer_file = url_to_file_path(referrer).ok();
let maybe_start_folder =
maybe_referrer_file.as_ref().and_then(|f| f.parent());
if let Some(start_folder) = maybe_start_folder {
for current_folder in start_folder.ancestors() {
let node_modules_folder = if current_folder.ends_with("node_modules")
{
Cow::Borrowed(current_folder)
} else {
Cow::Owned(current_folder.join("node_modules"))
};
let sub_dir = join_package_name(&node_modules_folder, name);
if fs.is_dir_sync(&sub_dir) {
return Ok(sub_dir);
}
}
}
Err(
PackageNotFoundError {
package_name: name.to_string(),
referrer: referrer.clone(),
referrer_extra: None,
}
.into(),
)
}
let path = inner(&self.fs, name, referrer)?;
self.fs.realpath_sync(&path).map_err(|err| {
PackageFolderResolveIoError {
package_name: name.to_string(),
referrer: referrer.clone(),
source: err,
}
.into()
})
}
fn in_npm_package(&self, specifier: &Url) -> bool {
specifier.scheme() == "file"
&& specifier
.path()
.to_ascii_lowercase()
.contains("/node_modules/")
}
}
fn join_package_name(path: &Path, package_name: &str) -> PathBuf {
let mut path = path.to_path_buf();
// ensure backslashes are used on windows
for part in package_name.split('/') {
path = path.join(part);
}
path
}