@jupyterlab/buildutils/lib/get-dependency.js

#!/usr/bin/env node
"use strict";
/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
    result["default"] = mod;
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const path = __importStar(require("path"));
const utils = __importStar(require("./utils"));
const packageJson = require("package-json");
let allDeps = [];
let allDevDeps = [];
/**
 * Get the appropriate dependency for a given package name.
 *
 * @param name - The name of the package.
 *
 * @returns The dependency version specifier.
 */
async function getDependency(name) {
    let version = '';
    let versions = {};
    allDeps = [];
    allDevDeps = [];
    utils.getLernaPaths().forEach(pkgRoot => {
        // Read in the package.json.
        let packagePath = path.join(pkgRoot, 'package.json');
        let data;
        try {
            data = utils.readJSONFile(packagePath);
        }
        catch (e) {
            return;
        }
        if (data.name === name) {
            version = '^' + data.version;
            return;
        }
        let deps = data.dependencies || {};
        let devDeps = data.devDependencies || {};
        if (deps[name]) {
            allDeps.push(data.name);
            if (deps[name] in versions) {
                versions[deps[name]]++;
            }
            else {
                versions[deps[name]] = 1;
            }
        }
        if (devDeps[name]) {
            allDevDeps.push(data.name);
            if (devDeps[name] in versions) {
                versions[devDeps[name]]++;
            }
            else {
                versions[devDeps[name]] = 1;
            }
        }
    });
    if (version) {
        return version;
    }
    if (Object.keys(versions).length > 0) {
        // Get the most common version.
        version = Object.keys(versions).reduce((a, b) => {
            return versions[a] > versions[b] ? a : b;
        });
    }
    else {
        const releaseData = await packageJson(name);
        version = '~' + releaseData.version;
    }
    return Promise.resolve(version);
}
exports.getDependency = getDependency;
if (require.main === module) {
    // Make sure we have required command line arguments.
    if (process.argv.length < 3) {
        let msg = '** Must supply a target library name\n';
        process.stderr.write(msg);
        process.exit(1);
    }
    let name = process.argv[2];
    void getDependency(name).then(version => {
        console.log('dependency of: ', allDeps);
        console.log('devDependency of:', allDevDeps);
        console.log(`\n    "${name}": "${version}"`);
    });
}
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