mirror of
https://github.com/denoland/deno.git
synced 2024-12-23 07:44:48 -05:00
818 lines
21 KiB
Rust
818 lines
21 KiB
Rust
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
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use std::path::Path;
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use std::path::PathBuf;
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use deno_core::anyhow::bail;
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use deno_core::error::generic_error;
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use deno_core::error::AnyError;
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use deno_core::serde_json::Map;
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use deno_core::serde_json::Value;
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use deno_core::url::Url;
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use deno_core::ModuleSpecifier;
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use regex::Regex;
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use crate::errors;
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use crate::package_json::PackageJson;
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use crate::path::PathClean;
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use crate::RequireNpmResolver;
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pub static DEFAULT_CONDITIONS: &[&str] = &["deno", "node", "import"];
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pub static REQUIRE_CONDITIONS: &[&str] = &["require", "node"];
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#[derive(Clone, Copy, Debug, PartialEq, Eq)]
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pub enum NodeModuleKind {
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Esm,
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Cjs,
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}
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fn to_specifier_display_string(url: &ModuleSpecifier) -> String {
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if let Ok(path) = url.to_file_path() {
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path.display().to_string()
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} else {
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url.to_string()
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}
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}
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fn throw_import_not_defined(
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specifier: &str,
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package_json_path: Option<&Path>,
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base: &ModuleSpecifier,
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) -> AnyError {
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errors::err_package_import_not_defined(
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specifier,
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package_json_path.map(|p| p.parent().unwrap().display().to_string()),
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&to_specifier_display_string(base),
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)
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}
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fn pattern_key_compare(a: &str, b: &str) -> i32 {
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let a_pattern_index = a.find('*');
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let b_pattern_index = b.find('*');
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let base_len_a = if let Some(index) = a_pattern_index {
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index + 1
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} else {
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a.len()
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};
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let base_len_b = if let Some(index) = b_pattern_index {
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index + 1
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} else {
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b.len()
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};
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if base_len_a > base_len_b {
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return -1;
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}
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if base_len_b > base_len_a {
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return 1;
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}
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if a_pattern_index.is_none() {
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return 1;
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}
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if b_pattern_index.is_none() {
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return -1;
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}
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if a.len() > b.len() {
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return -1;
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}
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if b.len() > a.len() {
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return 1;
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}
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0
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}
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pub fn package_imports_resolve(
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name: &str,
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referrer: &ModuleSpecifier,
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referrer_kind: NodeModuleKind,
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conditions: &[&str],
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npm_resolver: &dyn RequireNpmResolver,
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) -> Result<PathBuf, AnyError> {
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if name == "#" || name.starts_with("#/") || name.ends_with('/') {
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let reason = "is not a valid internal imports specifier name";
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return Err(errors::err_invalid_module_specifier(
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name,
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reason,
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Some(to_specifier_display_string(referrer)),
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));
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}
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let package_config = get_package_scope_config(referrer, npm_resolver)?;
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let mut package_json_path = None;
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if package_config.exists {
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package_json_path = Some(package_config.path.clone());
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if let Some(imports) = &package_config.imports {
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if imports.contains_key(name) && !name.contains('*') {
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let maybe_resolved = resolve_package_target(
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package_json_path.as_ref().unwrap(),
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imports.get(name).unwrap().to_owned(),
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"".to_string(),
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name.to_string(),
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referrer,
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referrer_kind,
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false,
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true,
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conditions,
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npm_resolver,
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)?;
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if let Some(resolved) = maybe_resolved {
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return Ok(resolved);
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}
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} else {
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let mut best_match = "";
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let mut best_match_subpath = None;
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for key in imports.keys() {
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let pattern_index = key.find('*');
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if let Some(pattern_index) = pattern_index {
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let key_sub = &key[0..=pattern_index];
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if name.starts_with(key_sub) {
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let pattern_trailer = &key[pattern_index + 1..];
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if name.len() > key.len()
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&& name.ends_with(&pattern_trailer)
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&& pattern_key_compare(best_match, key) == 1
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&& key.rfind('*') == Some(pattern_index)
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{
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best_match = key;
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best_match_subpath = Some(
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name[pattern_index..=(name.len() - pattern_trailer.len())]
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.to_string(),
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);
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}
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}
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}
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}
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if !best_match.is_empty() {
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let target = imports.get(best_match).unwrap().to_owned();
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let maybe_resolved = resolve_package_target(
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package_json_path.as_ref().unwrap(),
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target,
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best_match_subpath.unwrap(),
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best_match.to_string(),
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referrer,
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referrer_kind,
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true,
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true,
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conditions,
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npm_resolver,
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)?;
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if let Some(resolved) = maybe_resolved {
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return Ok(resolved);
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}
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}
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}
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}
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}
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Err(throw_import_not_defined(
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name,
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package_json_path.as_deref(),
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referrer,
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))
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}
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fn throw_invalid_package_target(
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subpath: String,
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target: String,
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package_json_path: &Path,
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internal: bool,
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referrer: &ModuleSpecifier,
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) -> AnyError {
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errors::err_invalid_package_target(
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package_json_path.parent().unwrap().display().to_string(),
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subpath,
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target,
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internal,
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Some(referrer.as_str().to_string()),
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)
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}
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fn throw_invalid_subpath(
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subpath: String,
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package_json_path: &Path,
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internal: bool,
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referrer: &ModuleSpecifier,
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) -> AnyError {
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let ie = if internal { "imports" } else { "exports" };
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let reason = format!(
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"request is not a valid subpath for the \"{}\" resolution of {}",
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ie,
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package_json_path.display(),
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);
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errors::err_invalid_module_specifier(
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&subpath,
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&reason,
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Some(to_specifier_display_string(referrer)),
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)
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}
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#[allow(clippy::too_many_arguments)]
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fn resolve_package_target_string(
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target: String,
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subpath: String,
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match_: String,
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package_json_path: &Path,
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referrer: &ModuleSpecifier,
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referrer_kind: NodeModuleKind,
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pattern: bool,
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internal: bool,
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conditions: &[&str],
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npm_resolver: &dyn RequireNpmResolver,
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) -> Result<PathBuf, AnyError> {
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if !subpath.is_empty() && !pattern && !target.ends_with('/') {
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return Err(throw_invalid_package_target(
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match_,
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target,
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package_json_path,
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internal,
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referrer,
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));
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}
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let invalid_segment_re =
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Regex::new(r"(^|\|/)(..?|node_modules)(\|/|$)").expect("bad regex");
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let pattern_re = Regex::new(r"\*").expect("bad regex");
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if !target.starts_with("./") {
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if internal && !target.starts_with("../") && !target.starts_with('/') {
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let is_url = Url::parse(&target).is_ok();
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if !is_url {
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let export_target = if pattern {
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pattern_re
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.replace(&target, |_caps: ®ex::Captures| subpath.clone())
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.to_string()
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} else {
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format!("{}{}", target, subpath)
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};
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let package_json_url =
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ModuleSpecifier::from_file_path(package_json_path).unwrap();
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return package_resolve(
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&export_target,
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&package_json_url,
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referrer_kind,
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conditions,
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npm_resolver,
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);
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}
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}
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return Err(throw_invalid_package_target(
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match_,
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target,
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package_json_path,
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internal,
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referrer,
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));
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}
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if invalid_segment_re.is_match(&target[2..]) {
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return Err(throw_invalid_package_target(
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match_,
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target,
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package_json_path,
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internal,
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referrer,
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));
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}
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let package_path = package_json_path.parent().unwrap();
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let resolved_path = package_path.join(&target).clean();
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if !resolved_path.starts_with(package_path) {
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return Err(throw_invalid_package_target(
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match_,
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target,
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package_json_path,
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internal,
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referrer,
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));
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}
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if subpath.is_empty() {
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return Ok(resolved_path);
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}
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if invalid_segment_re.is_match(&subpath) {
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let request = if pattern {
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match_.replace('*', &subpath)
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} else {
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format!("{}{}", match_, subpath)
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};
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return Err(throw_invalid_subpath(
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request,
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package_json_path,
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internal,
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referrer,
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));
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}
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if pattern {
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let resolved_path_str = resolved_path.to_string_lossy();
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let replaced = pattern_re
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.replace(&resolved_path_str, |_caps: ®ex::Captures| {
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subpath.clone()
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});
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return Ok(PathBuf::from(replaced.to_string()));
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}
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Ok(resolved_path.join(&subpath).clean())
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}
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#[allow(clippy::too_many_arguments)]
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fn resolve_package_target(
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package_json_path: &Path,
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target: Value,
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subpath: String,
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package_subpath: String,
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referrer: &ModuleSpecifier,
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referrer_kind: NodeModuleKind,
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pattern: bool,
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internal: bool,
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conditions: &[&str],
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npm_resolver: &dyn RequireNpmResolver,
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) -> Result<Option<PathBuf>, AnyError> {
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if let Some(target) = target.as_str() {
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return Ok(Some(resolve_package_target_string(
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target.to_string(),
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subpath,
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package_subpath,
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package_json_path,
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referrer,
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referrer_kind,
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pattern,
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internal,
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conditions,
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npm_resolver,
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)?));
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} else if let Some(target_arr) = target.as_array() {
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if target_arr.is_empty() {
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return Ok(None);
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}
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let mut last_error = None;
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for target_item in target_arr {
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let resolved_result = resolve_package_target(
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package_json_path,
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target_item.to_owned(),
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subpath.clone(),
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package_subpath.clone(),
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referrer,
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referrer_kind,
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pattern,
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internal,
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conditions,
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npm_resolver,
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);
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if let Err(e) = resolved_result {
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let err_string = e.to_string();
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last_error = Some(e);
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if err_string.starts_with("[ERR_INVALID_PACKAGE_TARGET]") {
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continue;
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}
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return Err(last_error.unwrap());
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}
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let resolved = resolved_result.unwrap();
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if resolved.is_none() {
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last_error = None;
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continue;
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}
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return Ok(resolved);
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}
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if last_error.is_none() {
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return Ok(None);
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}
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return Err(last_error.unwrap());
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} else if let Some(target_obj) = target.as_object() {
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for key in target_obj.keys() {
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// TODO(bartlomieju): verify that keys are not numeric
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// return Err(errors::err_invalid_package_config(
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// to_file_path_string(package_json_url),
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// Some(base.as_str().to_string()),
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// Some("\"exports\" cannot contain numeric property keys.".to_string()),
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// ));
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if key == "default" || conditions.contains(&key.as_str()) {
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let condition_target = target_obj.get(key).unwrap().to_owned();
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let resolved = resolve_package_target(
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package_json_path,
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condition_target,
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subpath.clone(),
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package_subpath.clone(),
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referrer,
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referrer_kind,
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pattern,
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internal,
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conditions,
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npm_resolver,
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)?;
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if resolved.is_none() {
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continue;
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}
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return Ok(resolved);
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}
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}
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} else if target.is_null() {
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return Ok(None);
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}
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Err(throw_invalid_package_target(
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package_subpath,
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target.to_string(),
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package_json_path,
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internal,
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referrer,
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))
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}
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fn throw_exports_not_found(
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subpath: String,
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package_json_path: &Path,
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referrer: &ModuleSpecifier,
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) -> AnyError {
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errors::err_package_path_not_exported(
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package_json_path.parent().unwrap().display().to_string(),
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subpath,
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Some(to_specifier_display_string(referrer)),
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)
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}
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pub fn package_exports_resolve(
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package_json_path: &Path,
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package_subpath: String,
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package_exports: &Map<String, Value>,
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referrer: &ModuleSpecifier,
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referrer_kind: NodeModuleKind,
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conditions: &[&str],
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npm_resolver: &dyn RequireNpmResolver,
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) -> Result<PathBuf, AnyError> {
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if package_exports.contains_key(&package_subpath)
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&& package_subpath.find('*').is_none()
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&& !package_subpath.ends_with('/')
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{
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let target = package_exports.get(&package_subpath).unwrap().to_owned();
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let resolved = resolve_package_target(
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package_json_path,
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target,
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"".to_string(),
|
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package_subpath.to_string(),
|
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referrer,
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referrer_kind,
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false,
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false,
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conditions,
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npm_resolver,
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)?;
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if resolved.is_none() {
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return Err(throw_exports_not_found(
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package_subpath,
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package_json_path,
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referrer,
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));
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}
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return Ok(resolved.unwrap());
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}
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|
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let mut best_match = "";
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let mut best_match_subpath = None;
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for key in package_exports.keys() {
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let pattern_index = key.find('*');
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if let Some(pattern_index) = pattern_index {
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let key_sub = &key[0..pattern_index];
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if package_subpath.starts_with(key_sub) {
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// When this reaches EOL, this can throw at the top of the whole function:
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//
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// if (StringPrototypeEndsWith(packageSubpath, '/'))
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// throwInvalidSubpath(packageSubpath)
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//
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// To match "imports" and the spec.
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if package_subpath.ends_with('/') {
|
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// TODO(bartlomieju):
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// emitTrailingSlashPatternDeprecation();
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}
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let pattern_trailer = &key[pattern_index + 1..];
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if package_subpath.len() > key.len()
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&& package_subpath.ends_with(&pattern_trailer)
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&& pattern_key_compare(best_match, key) == 1
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&& key.rfind('*') == Some(pattern_index)
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{
|
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best_match = key;
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best_match_subpath = Some(
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package_subpath
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[pattern_index..(package_subpath.len() - pattern_trailer.len())]
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.to_string(),
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);
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}
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}
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}
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}
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|
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if !best_match.is_empty() {
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let target = package_exports.get(best_match).unwrap().to_owned();
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let maybe_resolved = resolve_package_target(
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package_json_path,
|
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target,
|
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best_match_subpath.unwrap(),
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best_match.to_string(),
|
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referrer,
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referrer_kind,
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true,
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false,
|
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conditions,
|
|
npm_resolver,
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)?;
|
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if let Some(resolved) = maybe_resolved {
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return Ok(resolved);
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} else {
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return Err(throw_exports_not_found(
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package_subpath,
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package_json_path,
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referrer,
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));
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}
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}
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Err(throw_exports_not_found(
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package_subpath,
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package_json_path,
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referrer,
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))
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}
|
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|
|
fn parse_package_name(
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specifier: &str,
|
|
referrer: &ModuleSpecifier,
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) -> Result<(String, String, bool), AnyError> {
|
|
let mut separator_index = specifier.find('/');
|
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let mut valid_package_name = true;
|
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let mut is_scoped = false;
|
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if specifier.is_empty() {
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valid_package_name = false;
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} else if specifier.starts_with('@') {
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is_scoped = true;
|
|
if let Some(index) = separator_index {
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separator_index = specifier[index + 1..]
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.find('/')
|
|
.map(|new_index| index + 1 + new_index);
|
|
} else {
|
|
valid_package_name = false;
|
|
}
|
|
}
|
|
|
|
let package_name = if let Some(index) = separator_index {
|
|
specifier[0..index].to_string()
|
|
} else {
|
|
specifier.to_string()
|
|
};
|
|
|
|
// Package name cannot have leading . and cannot have percent-encoding or separators.
|
|
for ch in package_name.chars() {
|
|
if ch == '%' || ch == '\\' {
|
|
valid_package_name = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if !valid_package_name {
|
|
return Err(errors::err_invalid_module_specifier(
|
|
specifier,
|
|
"is not a valid package name",
|
|
Some(to_specifier_display_string(referrer)),
|
|
));
|
|
}
|
|
|
|
let package_subpath = if let Some(index) = separator_index {
|
|
format!(".{}", specifier.chars().skip(index).collect::<String>())
|
|
} else {
|
|
".".to_string()
|
|
};
|
|
|
|
Ok((package_name, package_subpath, is_scoped))
|
|
}
|
|
|
|
pub fn package_resolve(
|
|
specifier: &str,
|
|
referrer: &ModuleSpecifier,
|
|
referrer_kind: NodeModuleKind,
|
|
conditions: &[&str],
|
|
npm_resolver: &dyn RequireNpmResolver,
|
|
) -> Result<PathBuf, AnyError> {
|
|
let (package_name, package_subpath, _is_scoped) =
|
|
parse_package_name(specifier, referrer)?;
|
|
|
|
// ResolveSelf
|
|
let package_config = get_package_scope_config(referrer, npm_resolver)?;
|
|
if package_config.exists
|
|
&& package_config.name.as_ref() == Some(&package_name)
|
|
{
|
|
if let Some(exports) = &package_config.exports {
|
|
return package_exports_resolve(
|
|
&package_config.path,
|
|
package_subpath,
|
|
exports,
|
|
referrer,
|
|
referrer_kind,
|
|
conditions,
|
|
npm_resolver,
|
|
);
|
|
}
|
|
}
|
|
|
|
let package_dir_path = npm_resolver.resolve_package_folder_from_package(
|
|
&package_name,
|
|
&referrer.to_file_path().unwrap(),
|
|
)?;
|
|
let package_json_path = package_dir_path.join("package.json");
|
|
|
|
// todo: error with this instead when can't find package
|
|
// Err(errors::err_module_not_found(
|
|
// &package_json_url
|
|
// .join(".")
|
|
// .unwrap()
|
|
// .to_file_path()
|
|
// .unwrap()
|
|
// .display()
|
|
// .to_string(),
|
|
// &to_file_path_string(referrer),
|
|
// "package",
|
|
// ))
|
|
|
|
// Package match.
|
|
let package_json = PackageJson::load(npm_resolver, package_json_path)?;
|
|
if let Some(exports) = &package_json.exports {
|
|
return package_exports_resolve(
|
|
&package_json.path,
|
|
package_subpath,
|
|
exports,
|
|
referrer,
|
|
referrer_kind,
|
|
conditions,
|
|
npm_resolver,
|
|
);
|
|
}
|
|
if package_subpath == "." {
|
|
return legacy_main_resolve(&package_json, referrer_kind);
|
|
}
|
|
|
|
Ok(package_json.path.parent().unwrap().join(&package_subpath))
|
|
}
|
|
|
|
pub fn get_package_scope_config(
|
|
referrer: &ModuleSpecifier,
|
|
npm_resolver: &dyn RequireNpmResolver,
|
|
) -> Result<PackageJson, AnyError> {
|
|
let root_folder = npm_resolver
|
|
.resolve_package_folder_from_path(&referrer.to_file_path().unwrap())?;
|
|
let package_json_path = root_folder.join("package.json");
|
|
PackageJson::load(npm_resolver, package_json_path)
|
|
}
|
|
|
|
pub fn get_closest_package_json(
|
|
url: &ModuleSpecifier,
|
|
npm_resolver: &dyn RequireNpmResolver,
|
|
) -> Result<PackageJson, AnyError> {
|
|
let package_json_path = get_closest_package_json_path(url, npm_resolver)?;
|
|
PackageJson::load(npm_resolver, package_json_path)
|
|
}
|
|
|
|
fn get_closest_package_json_path(
|
|
url: &ModuleSpecifier,
|
|
npm_resolver: &dyn RequireNpmResolver,
|
|
) -> Result<PathBuf, AnyError> {
|
|
let file_path = url.to_file_path().unwrap();
|
|
let mut current_dir = file_path.parent().unwrap();
|
|
let package_json_path = current_dir.join("package.json");
|
|
if package_json_path.exists() {
|
|
return Ok(package_json_path);
|
|
}
|
|
let root_pkg_folder = npm_resolver
|
|
.resolve_package_folder_from_path(&url.to_file_path().unwrap())?;
|
|
while current_dir.starts_with(&root_pkg_folder) {
|
|
current_dir = current_dir.parent().unwrap();
|
|
let package_json_path = current_dir.join("package.json");
|
|
if package_json_path.exists() {
|
|
return Ok(package_json_path);
|
|
}
|
|
}
|
|
|
|
bail!("did not find package.json in {}", root_pkg_folder.display())
|
|
}
|
|
|
|
fn file_exists(path: &Path) -> bool {
|
|
if let Ok(stats) = std::fs::metadata(path) {
|
|
stats.is_file()
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
|
|
pub fn legacy_main_resolve(
|
|
package_json: &PackageJson,
|
|
referrer_kind: NodeModuleKind,
|
|
) -> Result<PathBuf, AnyError> {
|
|
let maybe_main = package_json.main(referrer_kind);
|
|
let mut guess;
|
|
|
|
if let Some(main) = maybe_main {
|
|
guess = package_json.path.parent().unwrap().join(main).clean();
|
|
if file_exists(&guess) {
|
|
return Ok(guess);
|
|
}
|
|
|
|
let mut found = false;
|
|
// todo(dsherret): investigate exactly how node handles this
|
|
let endings = match referrer_kind {
|
|
NodeModuleKind::Cjs => vec![
|
|
".js",
|
|
".cjs",
|
|
".json",
|
|
".node",
|
|
"/index.js",
|
|
"/index.cjs",
|
|
"/index.json",
|
|
"/index.node",
|
|
],
|
|
NodeModuleKind::Esm => vec![
|
|
".js",
|
|
".mjs",
|
|
".json",
|
|
".node",
|
|
"/index.js",
|
|
"/index.mjs",
|
|
".cjs",
|
|
"/index.cjs",
|
|
"/index.json",
|
|
"/index.node",
|
|
],
|
|
};
|
|
for ending in endings {
|
|
guess = package_json
|
|
.path
|
|
.parent()
|
|
.unwrap()
|
|
.join(&format!("{}{}", main, ending))
|
|
.clean();
|
|
if file_exists(&guess) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if found {
|
|
// TODO(bartlomieju): emitLegacyIndexDeprecation()
|
|
return Ok(guess);
|
|
}
|
|
}
|
|
|
|
let index_file_names = match referrer_kind {
|
|
NodeModuleKind::Cjs => {
|
|
vec!["index.js", "index.cjs", "index.json", "index.node"]
|
|
}
|
|
NodeModuleKind::Esm => vec![
|
|
"index.js",
|
|
"index.mjs",
|
|
"index.cjs",
|
|
"index.json",
|
|
"index.node",
|
|
],
|
|
};
|
|
for index_file_name in index_file_names {
|
|
guess = package_json
|
|
.path
|
|
.parent()
|
|
.unwrap()
|
|
.join(index_file_name)
|
|
.clean();
|
|
if file_exists(&guess) {
|
|
// TODO(bartlomieju): emitLegacyIndexDeprecation()
|
|
return Ok(guess);
|
|
}
|
|
}
|
|
|
|
Err(generic_error("not found"))
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn test_parse_package_name() {
|
|
let dummy_referrer = Url::parse("http://example.com").unwrap();
|
|
|
|
assert_eq!(
|
|
parse_package_name("fetch-blob", &dummy_referrer).unwrap(),
|
|
("fetch-blob".to_string(), ".".to_string(), false)
|
|
);
|
|
assert_eq!(
|
|
parse_package_name("@vue/plugin-vue", &dummy_referrer).unwrap(),
|
|
("@vue/plugin-vue".to_string(), ".".to_string(), true)
|
|
);
|
|
assert_eq!(
|
|
parse_package_name("@astrojs/prism/dist/highlighter", &dummy_referrer)
|
|
.unwrap(),
|
|
(
|
|
"@astrojs/prism".to_string(),
|
|
"./dist/highlighter".to_string(),
|
|
true
|
|
)
|
|
);
|
|
}
|
|
}
|