function checkEngines()

in src/plugman/install.js [99:123]

• 16 lines of code
• 5 McCabe index (conditional complexity)

function checkEngines (engines) {
    for (let i = 0; i < engines.length; i++) {
        const engine = engines[i];

        // This is a hack to allow plugins with <engine> tag to be installed with
        // engine with '-dev' or '-nightly' suffixes. It is required due to new semver range logic,
        // introduced in semver@3.x. For more details see https://github.com/npm/node-semver#prerelease-tags.
        //
        // This may lead to false-positive checks, when engine version with dropped
        // suffix is equal to one of range bounds, for example: 5.1.0-dev >= 5.1.0.
        // However this shouldn't be a problem, because this only should happen in dev workflow.
        engine.currentVersion = engine.currentVersion && engine.currentVersion.replace(/-dev|-nightly.*$/, '');
        if (semver.satisfies(engine.currentVersion, engine.minVersion, /* loose= */true) || engine.currentVersion === null) {
            continue; // engine ok!
        } else {
            const msg = 'Plugin doesn\'t support this project\'s ' + engine.name + ' version. ' +
                      engine.name + ': ' + engine.currentVersion +
                      ', failed version requirement: ' + engine.minVersion;
            events.emit('warn', msg);
            return Promise.reject(Object.assign(new Error(), { skip: true }));
        }
    }

    return Promise.resolve(true);
}