Custome Field - Number field - Script Runner

custom field - подчитываем размер вложений в задаче jira.groovy

import com.atlassian.jira.issue.attachment.Attachment;
import com.atlassian.jira.issue.AttachmentManager;
import com.atlassian.jira.component.ComponentAccessor;

        AttachmentManager attachmentManager = ComponentAccessor.getAttachmentManager();
        List<Attachment> attachments = attachmentManager.getAttachments(issue);
        long size = 0l;
        for (Attachment at:
             attachments) {
            size += at.getFilesize();
        }
return size;