Bitbucket Deploy Hook

deploy.php

<?php
  
  define('REPO_PATH', '/repositories/');
  define('STAGING_PATH', '/htdocs/dev/');
  define('PRODUCTION_PATH', '/htdocs/');

  $git = 'git';

  $update = false;

  // Parse data from Bitbucket hook payload
  $payload = json_decode( $_POST['payload'] );

  if ($payload && $slug = $payload->repository->slug) {

    $repo_dir = REPO_PATH . $slug . '.git';

    if ( empty($payload->commits) ) {

      // we recieved some POST data, but can't determine the branch
      // so we are going to update the staging branch to be safe
      $web_root_dir = STAGING_PATH . $slug;
      $branch = 'develop';
      $commit = false;
      $update = true;

    } else {

      $commit = true;

      foreach ($payload->commits as $commit) {

        $branch = $commit->branch;

        if ( $branch === 'master' || isset($commit->branches) && in_array('master', $commit->branches) ) {

          $web_root_dir = PRODUCTION_PATH . $slug;
          $update = true;
          break;

        } elseif ( $branch === 'develop' || isset($commit->branches) && in_array('develop', $commit->branches) ) {
          
          $web_root_dir = STAGING_PATH . $slug;
          $update = true;
          break;
        }

      }

    }

    if ($update) {

      // Do a git checkout to the web root
      exec('cd ' . $repo_dir . ' && ' . $git  . ' fetch');
      exec('cd ' . $repo_dir . ' && GIT_WORK_TREE=' . $web_root_dir . ' ' . $git  . ' checkout -f ' . $branch);

      // Log the deployment
      $commit_hash = shell_exec('cd ' . $repo_dir . ' && ' . $git  . ' rev-parse --short HEAD');

      deploy_log( date('d.m.Y H:i:s') . ' ' . $slug . ': ' . $branch . ($commit ? '' : '[no commit]') . " @ " . $commit_hash);

    }

  } else {

    deploy_log("Page accessed but no valid POST data found.\r\n");
    die();

  }

  function deploy_log($message) {
    file_put_contents('/logs/git_deploy.log', $message . "\r\n", FILE_APPEND);
  }