VersionPress\ChangeInfos\ChangeInfoEnvelope::getCommitMessage PHP Method

    public function getCommitMessage()
    {
        $subject = $this->getChangeDescription();
        $bodies = [];
        foreach ($this->getSortedChangeInfoList() as $changeInfo) {
            $bodies[] = $changeInfo->getCommitMessage()->getBody();
        }
        $body = join("\n\n", $bodies);
        $body .= sprintf("\n\n%s: %s", self::VP_VERSION_TAG, $this->version);
        $body .= sprintf("\n%s: %s", self::VP_ENVIRONMENT_TAG, $this->environment);
        return new CommitMessage($subject, $body);
    }

 /**
  * Creates manual commit. Adds everything to stage.
  *
  * @param WP_REST_Request $request
  * @return WP_REST_Response|WP_Error
  */
 public function commit(WP_REST_Request $request)
 {
     $currentUser = wp_get_current_user();
     if ($currentUser->ID === 0) {
         return new WP_Error('error', 'You don\'t have permission to do this.', ['status' => 403]);
     }
     /** @noinspection PhpUndefinedFieldInspection */
     $authorName = $currentUser->display_name;
     /** @noinspection PhpUndefinedFieldInspection */
     $authorEmail = $currentUser->user_email;
     $this->gitRepository->stageAll();
     $status = $this->gitRepository->getStatus(true);
     if (ArrayUtils::any($status, function ($fileStatus) {
         $vpdbName = basename(VP_VPDB_DIR);
         return Strings::contains($fileStatus[1], $vpdbName);
     })) {
         $this->updateDatabase($status);
     }
     $commitMessage = new CommitMessage($request['commit-message']);
     $changeInfoEnvelope = new ChangeInfoEnvelope([new UntrackedChangeInfo($commitMessage)]);
     $this->gitRepository->commit($changeInfoEnvelope->getCommitMessage(), $authorName, $authorEmail);
     return new WP_REST_Response(true);
 }