add watcher script

gistfile1.groovy

import com.atlassian.crowd.embedded.api.User
import com.atlassian.jira.ComponentManager
import com.atlassian.jira.issue.Issue
import com.atlassian.jira.issue.search.SearchRequest
import com.atlassian.jira.jql.builder.JqlQueryBuilder
import com.atlassian.jira.project.Project
import com.atlassian.jira.security.roles.ProjectRoleManager
import com.atlassian.jira.web.bean.PagerFilter
import com.atlassian.query.Query

def projectKey = "JRA"
def roleName = "KingOfTheHill"

def jqlQueryBuilder = JqlQueryBuilder.newBuilder()
def componentManager = ComponentManager.getInstance()
def searchProvider = componentManager.getSearchProvider()
def watcherManager = componentManager.getWatcherManager()
def issueManager = componentManager.getIssueManager()

ProjectRoleManager projectRoleManager = (ProjectRoleManager) componentManager.getComponentInstanceOfType(ProjectRoleManager.class);
Project project = componentManager.getProjectManager().getProjectObjByKey(projectKey)

def anyOldAdminUser = componentManager.getUserUtil().getJiraAdministrators().toList().first() as User

def role = projectRoleManager.getProjectRole(roleName)

Query query = jqlQueryBuilder.where().project(projectKey).and().issueTypeIsStandard().and().status().notEq("Closed").buildQuery()
def sr = new SearchRequest(query)

def roleMembers = projectRoleManager.getProjectRoleActors(role, project).getRoleActors()*.getUsers().flatten()

def results = searchProvider.search(sr.getQuery(), anyOldAdminUser, PagerFilter.getUnlimitedFilter())

results.issues.each {Issue docIssue ->
    def issue = issueManager.getIssueObject(docIssue.id)
    log.debug("Looking at issue: ${issue.key}")
    if (issue.subTaskObjects.any {it.summary == "HelpTylerHesNotSmart"}) { // todo: update this
        roleMembers.each {user ->
            log.debug("Add user ${user.name} to ${issue.key}")
            watcherManager.startWatching(user, issue.genericValue)
        }
    }
    else {
        roleMembers.each {user ->
            if (watcherManager.isWatching(user as User, issue.genericValue)) {
                log.debug("Remove user ${user.name} from ${issue.key}")
                watcherManager.stopWatching(user, issue.genericValue)
            }
        }
    }
}