@sqlpm/node-package-ts

@sqlpm/node-package-ts

@sqlpm/node-package-ts is a typescript library that returns a node package dependency tree of all dependent packages: even taking into consideration yarn workspaces.

This library is not a packager resolver.

README: See How to Use This Library to learn how to enable transpilation for local development or tools like jest or ts-node won't work.

Features

• 100% typescript.
• functions
  • buildDependency - Builds a node package dependency tree.
  • filterDependencies - Include or exclude package dependencies filtering on package name.
  • nodePackageFromSource - Converts package.json to an easy to use data structure, providing filtering of dependencies as needed.

Usage

buildDependency - Build A Dependency Tree From a Root Node Package

Builds a node package dependency tree starting at the child path.

• @param childPath - The starting path of the dependency tree.
• @param [options] - See {@link FilterOptions}, {@link MessagingOptions}
• @throws - Errors if the childPath can not be resolved.
• @returns A node package dependency tree starting at the childPath provided. @example Get package dependency of the current directory

import {
  buildDependency
} from '@sqlpm/node-package-ts';
const nodePackage = await buildDependency(__dirname);
expect(nodePackage?.source?.fileName).toEqual('package.json');

contentSourcesToObject - Convert a ContentSource Into And Object

Converts an array of ContentSources to a key/value object where the key is the source to the package.json file and the value is the contents of the package itself.

• @param contentSources An array of {@link ContentSources}
• @returns An object whose key is the source (file path for example) and the value is the content (of a file for example). @example Converting Array of Content Sources to an Object

import {
  contentSourcesToObject,
  NodePackageContentSources,
} from '../src';
const sources: NodePackageContentSources = [
  {
    sourcePath: '/some/path/package.json',
    content: {
      name: 'someName',
      version: '0.0.0',
    },
  },
];
const sourceAsObj = contentSourcesToObject(sources);
expect(sourceAsObj).toEqual({
  '/some/path/package.json': { name: 'someName', version: '0.0.0' },
});

filterDependencies - Filter Package Dependencies

Given an array of Node Package dependencies (package.json.dependencies), returns a new array of package dependencies filtered by include and exclude regular expressions against the node package name property.

• @param dependencies - The array of package dependencies as defined by package.json.dependencies.
• @param options
  • [options.include] - When provided, a filter is applied to include dependencies that match the regular expression.
  • [options.exclude] - When provided, a filter is applied to remove dependencies that match the regular expression. @returns The array of package dependencies after they have been filtered. @example Return file meta data and content details.

import {
  filteredDependencies
} from '@sqlpm/node-package-ts';
const nodeDependencies = [
  { package: { name: 'package', version: '^0.0.6' } },
  { package: { name: '@sqlpm/file-async-ts', version: '^1.3.0' } },
];
const filteredDependencies = filterDependencies(
  nodeDependencies,
  { include: [/^@sqlpm\/[\S]/] },
);
expect(filteredDependencies.length).toEqual(1);

loadNodePackage - Load and Verify a 'package.json' File

Loads, verifies and returns the contents of a node package file (such as package.json) in a {@link NodePackageContentSource}.

• @param path - The file path, including the file name, to a node package file (such as package.json).
• @param [options.required] When true or undefined, an exception is thrown if the file is not found.
• @returns The verified contents and location of the node package in a
• @throws - An error is thrown if the file is not found and options.required was set to true. in a {@link NodePackageContentSource}. @example Load and verify a package.json file.

import {
  join,
  dirname,
} from 'node:path';
import {
  loadNodePackage,
  NodePackageContentSource,
} from '../src/index';
const dir = join(dirname(__dirname), 'package.json');
const projConfig: NodePackageContentSource | undefined = await loadNodePackage(dir);
expect(projConfig).toBeDefined();
expect(projConfig?.sourcePath)
  .toEqual(join(dirname(__dirname), 'package.json'));
expect(projConfig?.content.name).toBeDefined();
expect(projConfig?.content.version).toBeDefined();

nodePackagesFromDependency - Convert a Node Package Dependency to an Array Of NodePackages

Given a {@link Dependency} as defined in package.json, converts the object key/value representation of { packageName: packageVersion } into an array of {@link NodePackage}.

@remarks For dependent packages, the version is marked as 'unknown' because the actual package may have a different version than the version defined in package.json

@param dependencies - The dependencies object as defined by package dependencies. Also see {@link Dependency}. @returns An array of {@link NodePackage}. If no dependencies were found, an empty array is returned. @example

import {
  nodePackagesFromDependency
} from '@sqlpm/node-package-ts';
const packageDependencies: Dependency = {
  '@schemastore/package': '^0.0.6',
};
const dependencies: NodePackages = nodePackagesFromDependency(
  packageDependencies,
);
expect(dependencies).toEqual([{
  package: {
    dependencies: [],
    name: '@schemastore/package',
    version: '^0.0.6',
  },
}]);

nodePackageFromSource - Convert Node Package Data and Filter Depencencies

After loading a node package, convert the node package into an easy to manipulate data object. During conversion, filter dependencies. @param contentSource The source (file name) and package.json content. **@returns A {@link NodePackage} with, optionally, filtered dependencies. @example

import {
  NodePackage,
  NodePackageContentSource,
  nodePackageFromSource,
} from '@sqlpm/node-package-ts'
const source: NodePackageContentSource = {
  sourcePath: '/some/package.json',
  content: {
    name: '@sqlpm/types',
    version: '^0.0.0',
    dependencies: {
      '@sqlpm/types': '^0.0.0',
    },
  },
};
const nodePackage: NodePackage = nodePackageFromSource(
  source,
  { exclude: /^@sqlpm\/[\S]/ },
);
expect(nodePackage).toEqual({
  source: {
    absolutePath: '/some',
    fileName: 'package.json'
  },
  package: {
    name: '@sqlpm/types',
    version: '^0.0.0',
    dependencies: [],
  },
});

projectConfiguration -

The project's package.json and any parent package.json file may be used to determine how a project is built and where modules are located. For example, a parent package.json may contain a yarn workspaces configuration.

• @param childPath - The absolute path to the child path containing the first package.json file.
• @param [packageFileName=package.json] - A node package file name to use in place of package.json.
• @throws - An error is returned if any of the package.json files found are invalid. An error is returned if childPath resolves to a file.
• @returns - An array of package.json objects: ordered as found from the child package to the parent package. Example usage:

import {
  dirname,
} from 'node:path';
import {
  projectConfiguration,
} from '@sqlpm/loader';
(async () => {
  const dir = dirname(__dirname);
  const projConfig = await projectConfiguration(dir);
  expect(projConfig[0].content.name).toBeDefined();
})();

Intent

• No Emitted Javascript - The intent is to import this typescript library into a typescript project: compiling to Javascript occurring within the project.

Running Typescript in node_modules

• `ts
• jest

Development

See the monorepo readme.

License

Licensed under MIT. See LICENSE.md.