45 lines
1.6 KiB
JavaScript
45 lines
1.6 KiB
JavaScript
|
/**
|
||
|
|
* Utility for resolving a module relative to another module
|
||
|
|
* @author Teddy Katz
|
||
|
|
*/
|
||
|
|
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
const Module = require("module");
|
||
|
|
|
||
|
|
/*
|
||
|
|
* `Module.createRequire` is added in v12.2.0. It supports URL as well.
|
||
|
|
* We only support the case where the argument is a filepath, not a URL.
|
||
|
|
*/
|
||
|
|
// eslint-disable-next-line node/no-unsupported-features/node-builtins, node/no-deprecated-api
|
||
|
|
const createRequire = Module.createRequire || Module.createRequireFromPath;
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Resolves a Node module relative to another module
|
||
|
|
* @param {string} moduleName The name of a Node module, or a path to a Node module.
|
||
|
|
* @param {string} relativeToPath An absolute path indicating the module that `moduleName` should be resolved relative to. This must be
|
||
|
|
* a file rather than a directory, but the file need not actually exist.
|
||
|
|
* @returns {string} The absolute path that would result from calling `require.resolve(moduleName)` in a file located at `relativeToPath`
|
||
|
|
*/
|
||
|
|
resolve(moduleName, relativeToPath) {
|
||
|
|
try {
|
||
|
|
return createRequire(relativeToPath).resolve(moduleName);
|
||
|
|
} catch (error) {
|
||
|
|
|
||
|
|
// This `if` block is for older Node.js than 12.0.0. We can remove this block in the future.
|
||
|
|
if (
|
||
|
|
typeof error === "object" &&
|
||
|
|
error !== null &&
|
||
|
|
error.code === "MODULE_NOT_FOUND" &&
|
||
|
|
!error.requireStack &&
|
||
|
|
error.message.includes(moduleName)
|
||
|
|
) {
|
||
|
|
error.message += `\nRequire stack:\n- ${relativeToPath}`;
|
||
|
|
}
|
||
|
|
throw error;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|