mirror of
https://github.com/denoland/deno.git
synced 2024-11-01 09:24:20 -04:00
294 lines
8.8 KiB
Rust
294 lines
8.8 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use std::collections::BTreeMap;
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use std::collections::HashMap;
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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::AnyError;
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use deno_graph::npm::NpmPackageReq;
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use deno_graph::semver::NpmVersionReqSpecifierParseError;
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use deno_graph::semver::VersionReq;
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use deno_runtime::deno_node::PackageJson;
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use thiserror::Error;
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#[derive(Debug, Clone, Error, PartialEq, Eq, Hash)]
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#[error("Could not find @ symbol in npm url '{value}'")]
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pub struct PackageJsonDepNpmSchemeValueParseError {
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pub value: String,
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}
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/// Gets the name and raw version constraint taking into account npm
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/// package aliases.
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pub fn parse_dep_entry_name_and_raw_version<'a>(
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key: &'a str,
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value: &'a str,
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) -> Result<(&'a str, &'a str), PackageJsonDepNpmSchemeValueParseError> {
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if let Some(package_and_version) = value.strip_prefix("npm:") {
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if let Some((name, version)) = package_and_version.rsplit_once('@') {
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Ok((name, version))
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} else {
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Err(PackageJsonDepNpmSchemeValueParseError {
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value: value.to_string(),
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})
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}
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} else {
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Ok((key, value))
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}
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}
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#[derive(Debug, Error, Clone, Hash)]
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pub enum PackageJsonDepValueParseError {
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#[error(transparent)]
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SchemeValue(#[from] PackageJsonDepNpmSchemeValueParseError),
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#[error(transparent)]
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Specifier(#[from] NpmVersionReqSpecifierParseError),
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#[error("Not implemented scheme '{scheme}'")]
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Unsupported { scheme: String },
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}
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pub type PackageJsonDeps =
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BTreeMap<String, Result<NpmPackageReq, PackageJsonDepValueParseError>>;
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/// Gets an application level package.json's npm package requirements.
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///
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/// Note that this function is not general purpose. It is specifically for
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/// parsing the application level package.json that the user has control
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/// over. This is a design limitation to allow mapping these dependency
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/// entries to npm specifiers which can then be used in the resolver.
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pub fn get_local_package_json_version_reqs(
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package_json: &PackageJson,
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) -> PackageJsonDeps {
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fn parse_entry(
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key: &str,
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value: &str,
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) -> Result<NpmPackageReq, PackageJsonDepValueParseError> {
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if value.starts_with("workspace:")
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|| value.starts_with("file:")
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|| value.starts_with("git:")
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|| value.starts_with("http:")
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|| value.starts_with("https:")
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{
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return Err(PackageJsonDepValueParseError::Unsupported {
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scheme: value.split(':').next().unwrap().to_string(),
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});
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}
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let (name, version_req) = parse_dep_entry_name_and_raw_version(key, value)
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.map_err(PackageJsonDepValueParseError::SchemeValue)?;
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let result = VersionReq::parse_from_specifier(version_req);
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match result {
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Ok(version_req) => Ok(NpmPackageReq {
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name: name.to_string(),
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version_req: Some(version_req),
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}),
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Err(err) => Err(PackageJsonDepValueParseError::Specifier(err)),
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}
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}
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fn insert_deps(
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deps: Option<&HashMap<String, String>>,
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result: &mut PackageJsonDeps,
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) {
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if let Some(deps) = deps {
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for (key, value) in deps {
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result.insert(key.to_string(), parse_entry(key, value));
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}
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}
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}
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let deps = package_json.dependencies.as_ref();
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let dev_deps = package_json.dev_dependencies.as_ref();
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let mut result = BTreeMap::new();
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// insert the dev dependencies first so the dependencies will
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// take priority and overwrite any collisions
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insert_deps(dev_deps, &mut result);
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insert_deps(deps, &mut result);
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result
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}
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/// Attempts to discover the package.json file, maybe stopping when it
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/// reaches the specified `maybe_stop_at` directory.
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pub fn discover_from(
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start: &Path,
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maybe_stop_at: Option<PathBuf>,
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) -> Result<Option<PackageJson>, AnyError> {
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const PACKAGE_JSON_NAME: &str = "package.json";
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// note: ancestors() includes the `start` path
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for ancestor in start.ancestors() {
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let path = ancestor.join(PACKAGE_JSON_NAME);
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let source = match std::fs::read_to_string(&path) {
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Ok(source) => source,
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Err(err) if err.kind() == std::io::ErrorKind::NotFound => {
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if let Some(stop_at) = maybe_stop_at.as_ref() {
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if ancestor == stop_at {
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break;
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}
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}
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continue;
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}
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Err(err) => bail!(
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"Error loading package.json at {}. {:#}",
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path.display(),
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err
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),
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};
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let package_json = PackageJson::load_from_string(path.clone(), source)?;
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log::debug!("package.json file found at '{}'", path.display());
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return Ok(Some(package_json));
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}
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log::debug!("No package.json file found");
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Ok(None)
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}
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#[cfg(test)]
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mod test {
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use pretty_assertions::assert_eq;
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use std::path::PathBuf;
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use super::*;
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#[test]
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fn test_parse_dep_entry_name_and_raw_version() {
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let cases = [
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("test", "^1.2", Ok(("test", "^1.2"))),
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("test", "1.x - 2.6", Ok(("test", "1.x - 2.6"))),
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("test", "npm:package@^1.2", Ok(("package", "^1.2"))),
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(
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"test",
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"npm:package",
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Err("Could not find @ symbol in npm url 'npm:package'"),
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),
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];
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for (key, value, expected_result) in cases {
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let result = parse_dep_entry_name_and_raw_version(key, value);
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match result {
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Ok(result) => assert_eq!(result, expected_result.unwrap()),
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Err(err) => assert_eq!(err.to_string(), expected_result.err().unwrap()),
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}
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}
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}
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fn get_local_package_json_version_reqs_for_tests(
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package_json: &PackageJson,
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) -> BTreeMap<String, Result<NpmPackageReq, String>> {
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get_local_package_json_version_reqs(package_json)
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.into_iter()
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.map(|(k, v)| {
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(
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k,
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match v {
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Ok(v) => Ok(v),
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Err(err) => Err(err.to_string()),
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},
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)
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})
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.collect::<BTreeMap<_, _>>()
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}
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#[test]
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fn test_get_local_package_json_version_reqs() {
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let mut package_json = PackageJson::empty(PathBuf::from("/package.json"));
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package_json.dependencies = Some(HashMap::from([
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("test".to_string(), "^1.2".to_string()),
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("other".to_string(), "npm:package@~1.3".to_string()),
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]));
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package_json.dev_dependencies = Some(HashMap::from([
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("package_b".to_string(), "~2.2".to_string()),
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// should be ignored
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("other".to_string(), "^3.2".to_string()),
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]));
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let deps = get_local_package_json_version_reqs_for_tests(&package_json);
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assert_eq!(
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deps,
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BTreeMap::from([
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(
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"test".to_string(),
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Ok(NpmPackageReq::from_str("test@^1.2").unwrap())
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),
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(
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"other".to_string(),
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Ok(NpmPackageReq::from_str("package@~1.3").unwrap())
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),
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(
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"package_b".to_string(),
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Ok(NpmPackageReq::from_str("package_b@~2.2").unwrap())
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)
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])
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);
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}
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#[test]
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fn test_get_local_package_json_version_reqs_errors_non_npm_specifier() {
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let mut package_json = PackageJson::empty(PathBuf::from("/package.json"));
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package_json.dependencies = Some(HashMap::from([(
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"test".to_string(),
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"1.x - 1.3".to_string(),
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)]));
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let map = get_local_package_json_version_reqs_for_tests(&package_json);
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assert_eq!(
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map,
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BTreeMap::from([(
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"test".to_string(),
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Err(
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concat!(
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"Invalid npm specifier version requirement. Unexpected character.\n",
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" - 1.3\n",
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" ~"
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)
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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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#[test]
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fn test_get_local_package_json_version_reqs_skips_certain_specifiers() {
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let mut package_json = PackageJson::empty(PathBuf::from("/package.json"));
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package_json.dependencies = Some(HashMap::from([
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("test".to_string(), "1".to_string()),
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("work-test".to_string(), "workspace:1.1.1".to_string()),
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("file-test".to_string(), "file:something".to_string()),
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("git-test".to_string(), "git:something".to_string()),
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("http-test".to_string(), "http://something".to_string()),
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("https-test".to_string(), "https://something".to_string()),
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]));
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let result = get_local_package_json_version_reqs_for_tests(&package_json);
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assert_eq!(
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result,
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BTreeMap::from([
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(
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"file-test".to_string(),
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Err("Not implemented scheme 'file'".to_string()),
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),
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(
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"git-test".to_string(),
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Err("Not implemented scheme 'git'".to_string()),
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),
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(
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"http-test".to_string(),
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Err("Not implemented scheme 'http'".to_string()),
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),
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(
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"https-test".to_string(),
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Err("Not implemented scheme 'https'".to_string()),
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),
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(
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"test".to_string(),
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Ok(NpmPackageReq::from_str("test@1").unwrap())
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),
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(
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"work-test".to_string(),
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Err("Not implemented scheme 'workspace'".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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