import * as core from '@actions/core';

import * as exec from '@actions/exec';

import * as tc from '@actions/tool-cache';

import * as path from 'path';

const IS_WINDOWS = process.platform === 'win32';

export async function findRubyVersion(version: string) {

const installDir: string | null = tc.find('Ruby', version);

if (!installDir) {

throw new Error(`Version ${version} not found`);

}

const toolPath: string = path.join(installDir, 'bin');

if (!IS_WINDOWS) {

// Ruby / Gem heavily use the '#!/usr/bin/ruby' to find ruby, so this task needs to

// replace that version of ruby so all the correct version of ruby gets selected

// replace the default

const dest: string = '/usr/bin/ruby';

exec.exec('sudo ln', ['-sf', path.join(toolPath, 'ruby'), dest]); // replace any existing

}

core.addPath(toolPath);

}