setup-python/src/setup-python.ts

import * as core from '@actions/core';
import * as finder from './find-python';
import * as path from 'path';

async function run() {
  try {
    let version = core.getInput('python-version');
    if (version.startsWith('2')) {
      core.warning(
        'The support for python 2.7 will be removed on June 19. Related issue: https://github.com/actions/setup-python/issues/672'
      );
    }
    if (version) {
      const arch: string = core.getInput('architecture', {required: true});
      const installed = await finder.findPythonVersion(version, arch);
      core.info(`Successfully setup ${installed.impl} (${installed.version})`);
    }
    const matchersPath = path.join(__dirname, '..', '.github');
    core.info(`##[add-matcher]${path.join(matchersPath, 'python.json')}`);
  } catch (err) {
    core.setFailed(err.message);
  }
}

run();