jsii/lib/common/find-utils.js

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.findUp = findUp;
exports.findPackageJsonUp = findPackageJsonUp;
exports.findDependencyDirectory = findDependencyDirectory;
const fs = require("node:fs");
const path = require("node:path");
const utils_1 = require("../utils");
/**
 * Find a directory up the tree from a starting directory matching a condition
 *
 * Will return `undefined` if no directory matches
 *
 * (This code is duplicated among jsii/jsii-pacmak/jsii-reflect. Changes should be done in all
 * 3 locations, and we should unify these at some point: https://github.com/aws/jsii/issues/3236)
 */
function findUp(directory, pred) {
    const result = pred(directory);
    if (result) {
        return directory;
    }
    const parent = path.dirname(directory);
    if (parent === directory) {
        return undefined;
    }
    return findUp(parent, pred);
}
/**
 * Find the package.json for a given package upwards from the given directory
 *
 * (This code is duplicated among jsii/jsii-pacmak/jsii-reflect. Changes should be done in all
 * 3 locations, and we should unify these at some point: https://github.com/aws/jsii/issues/3236)
 */
function findPackageJsonUp(packageName, directory) {
    return findUp(directory, (dir) => {
        const pjFile = path.join(dir, 'package.json');
        return fs.existsSync(pjFile) && JSON.parse(fs.readFileSync(pjFile, 'utf-8')).name === packageName;
    });
}
/**
 * Find the directory that contains a given dependency, identified by its 'package.json', from a starting search directory
 *
 * (This code is duplicated among jsii/jsii-pacmak/jsii-reflect. Changes should be done in all
 * 3 locations, and we should unify these at some point: https://github.com/aws/jsii/issues/3236)
 */
function findDependencyDirectory(dependencyName, searchStart) {
    // Explicitly do not use 'require("dep/package.json")' because that will fail if the
    // package does not export that particular file.
    const entryPoint = require.resolve(dependencyName, {
        paths: [searchStart],
    });
    // Search up from the given directory, looking for a package.json that matches
    // the dependency name (so we don't accidentally find stray 'package.jsons').
    const depPkgJsonPath = findPackageJsonUp(dependencyName, path.dirname(entryPoint));
    if (!depPkgJsonPath) {
        throw new utils_1.JsiiError(`Could not find dependency '${dependencyName}' from '${searchStart}'`);
    }
    return depPkgJsonPath;
}
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