assistant.module

<?php

/**
 * @file
 * Defines common functionality for ACC assistant.
 */

use Drupal\Core\Url;

/**
 * Implements hook_toolbar().
 */
function assistant_toolbar() {
  
  $tabs = [];
  $env = acc_get_environment();
  
  if ($env != 'dev' && $env != 'local') {
    $tabs['git_info'] = [
      '#type'   => 'toolbar_item',
      'tab'     => [
        '#type'       => 'link',
        '#title'      => t('Release: @git', ['@git' => acc_get_git_state($env)]),
        '#url'        => Url::fromRoute('<nolink>', []),
        '#attributes' => [
          'style' => 'display: block; padding-left: 10px; background-color: inherit; cursor: inherit; color: #fc0; font-weight: 100;',
        ],
      ],
      '#weight' => 999999,
      '#cache'  => [
        'max-age' => 0,
      ],
    ];
  }
  
  return $tabs;
}

/**
 * Get current state of git.
 *
 * @param $env string with current environment
 *
 * @return string , can be local, dev, stage, prod
 */
function acc_get_git_state($env) {
  if ($env == 'dev' || $env == 'stage' || $env == 'prod') {
    $git = shell_exec("drush @accuchekde." . $env . " ac-environment-info accuchekde " . $env . " | grep vcs_path | awk  -F'/' '{print $2}'");
  }
  else {
    $git = shell_exec("describe --tags --abbrev=0");
    
    if ($git === NULL) {
      $git = shell_exec("git log -1 --pretty=format:'%s (%ci)' --abbrev-commit `git merge-base local-dev dev`");
    };
  }
  return $git;
}

/**
 * Get a current environment name.
 *
 * @return string, can be local, dev, stage, prod
 */
function acc_get_environment() {
  if (isset($_ENV['AH_SITE_ENVIRONMENT'])) {
    return $_ENV['AH_SITE_ENVIRONMENT'];
  }
  else {
    return 'local';
  }
}