@rigor789/resolve-package-path

Small utility (no external dependencies) for finding the path of a package across different node versions.

npm i --save @rigor789/resolve-package-path
# or 
yarn add @rigor789/resolve-package-path
# or
pnpm add @rigor789/resolve-package-path

The reason this exists is because require.resolve("<packageName>/package.json") can fail if a package defines exports in their package.json and does not include package.json.

Some details on the issue can be found here: https://github.com/nodejs/node/issues/33460

This package works around the issue by:

1. first trying a regular require.resolve("<packageName>/package.json")
2. then falling back to require.resolve("<packageName>") and finding the last index of node_modules/<packageName>
3. finally falls back to the same require.resolve("<packageName>") and a filesystem traversal upwards until a matching package.json is found
4. if the package is not found, returns false

API

resolvePackagePath(packageName: string, options?)

Resolves the package path. Options accepts anything that require.resovle("", options) accepts. See Node Docs

Example:

const { resolvePackagePath } = require("@rigor789/resolve-package-path");

console.log(resolvePackagePath('package-a'))         // /path/to/package-a
console.log(resolvePackagePath('@scoped/package-a')) // /path/to/@scoped/package-a

resolvePackageJSONPath(packageName: string, options?)

Same as resolvePackagePath but returns the path to the package.json instead.

Example:

const { resolvePackageJSONPath } = require("@rigor789/resolve-package-path");

console.log(resolvePackageJSONPath('package-a'))         // /path/to/package-a/package.json
console.log(resolvePackageJSONPath('@scoped/package-a')) // /path/to/@scoped/package-a/package.json

License

MIT