Mingle integration for Gitblit using a groovy script

mingle.groovy

/*
 * Copyright 2011 gitblit.com.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import com.gitblit.GitBlit
import com.gitblit.Keys
import com.gitblit.models.RepositoryModel
import com.gitblit.models.UserModel
import com.gitblit.utils.JGitUtils
import java.text.SimpleDateFormat
import org.eclipse.jgit.lib.Repository
import org.eclipse.jgit.lib.Config
import org.eclipse.jgit.revwalk.RevCommit
import org.eclipse.jgit.transport.ReceiveCommand
import org.eclipse.jgit.transport.ReceiveCommand.Result
import org.slf4j.Logger
import com.gitblit.utils.Base64;

/**
 * Sample Gitblit Post-Receive Hook: jenkins
 *
 * The Post-Receive hook is executed AFTER the pushed commits have been applied
 * to the Git repository.  This is the appropriate point to trigger an
 * integration build or to send a notification.
 * 
 * This script is only executed when pushing to *Gitblit*, not to other Git
 * tooling you may be using.
 * 
 * If this script is specified in *groovy.postReceiveScripts* of gitblit.properties
 * or web.xml then it will be executed by any repository when it receives a
 * push.  If you choose to share your script then you may have to consider
 * tailoring control-flow based on repository access restrictions.
 *
 * Scripts may also be specified per-repository in the repository settings page.
 * Shared scripts will be excluded from this list of available scripts.
 * 
 * This script is dynamically reloaded and it is executed within it's own
 * exception handler so it will not crash another script nor crash Gitblit.
 * 
 * Bound Variables:
 *  gitblit			Gitblit Server	 			com.gitblit.GitBlit
 *  repository		Gitblit Repository			com.gitblit.models.RepositoryModel
 *  receivePack		JGit Receive Pack			org.eclipse.jgit.transport.ReceivePack
 *  user			Gitblit User				com.gitblit.models.UserModel
 *  commands		JGit commands 				Collection<org.eclipse.jgit.transport.ReceiveCommand>
 *	url				Base url for Gitblit		String
 *  logger			Logs messages to Gitblit 	org.slf4j.Logger
 *  clientLogger	Logs messages to Git client	com.gitblit.utils.ClientLogger
 *
 * Accessing Gitblit Custom Fields:
 *   def myCustomField = repository.customFields.myCustomField
 *  
 */
// Indicate we have started the script
logger.info("mingle hook triggered by ${user.username} for ${repository.name}")

Repository r = gitblit.getRepository(repository.name)

// define the summary and commit urls
def repo = repository.name
def summaryUrl
def commitUr

if (gitblit.getBoolean(Keys.web.mountParameters, true)) {
	repo = repo.replace('/', gitblit.getString(Keys.web.forwardSlashCharacter, '/')).replace('/', '%2F')
	summaryUrl = url + "/summary/$repo"
	commitUrl = url + "/commit/$repo/"
} else {
	summaryUrl = url + "/summary?r=$repo"
	commitUrl = url + "/commit?r=$repo&h="
}

SimpleDateFormat df = new SimpleDateFormat(gitblit.getString(Keys.web.datetimestampLongFormat, 'EEEE, MMMM d, yyyy h:mm a z'))
def table = { "\n ${JGitUtils.getDisplayName(it.authorIdent)}\n ${df.format(JGitUtils.getCommitDate(it))}\n\n $it.shortMessage\n\n $commitUrl$it.id.name" }

def SendToMingle(commitMessage){
	def m = commitMessage =~ /(?:#|card)\d+/
	if(m){
		def mingleUrl = gitblit.getString('groovy.mingleServer', 'http://mingle.leapfactor.net:8080')
		def mingleUser = gitblit.getString('groovy.mingleUser', 'git')
		def minglePass = gitblit.getString('groovy.minglePass', 'Leap911')		
		def triggerUrl = "${mingleUrl}/api/v2/projects/${repository.customFields.mingleProject}/murmurs.xml"			
		def authString = mingleUser + ":" + minglePass;
	 
		byte[] authEncBytes = Base64.encodeBytes(authString.getBytes());	 
		String authStringEnc = new String(authEncBytes);	
		def query = URLEncoder.encode("murmur[body]") + "=" + URLEncoder.encode(commitMessage, 'UTF8')			
		def url = new URL(triggerUrl)
		def connection = url.openConnection()
		
		connection.setRequestProperty("Authorization", "Basic " + authStringEnc);
		connection.setRequestMethod("POST")
		connection.setRequestProperty('Content-Type', 'application/x-www-form-urlencoded')		
		connection.setUseCaches (false);
		connection.setDoInput(true);
		connection.setDoOutput(true);
		
		//Send request
		DataOutputStream wr = new DataOutputStream (connection.getOutputStream ());
		wr.writeBytes (query);
		wr.flush ();
		wr.close ();

		//Get Response	
		InputStream is = connection.getInputStream();
		BufferedReader rd = new BufferedReader(new InputStreamReader(is));
		String line;
		StringBuffer response = new StringBuffer(); 
		while((line = rd.readLine()) != null) {
			response.append(line);
			response.append('\r');
		}
		rd.close();  	  
	}
}

for(command in commands) {
	def ref = command.refName
	def refType = 'branch'
	if (ref.startsWith('refs/heads/')) {
		ref  = command.refName.substring('refs/heads/'.length())
	} else if (ref.startsWith('refs/tags/')) {
		ref  = command.refName.substring('refs/tags/'.length())
		refType = 'tag'
	}
	switch (command.type) {
		case ReceiveCommand.Type.UPDATE:
		case ReceiveCommand.Type.UPDATE_NONFASTFORWARD:
			def commits = JGitUtils.getRevLog(r, command.oldId.name, command.newId.name).reverse()
			for(msg in commits.collect(table)){
				SendToMingle(msg)
			}						
			break
	}
}

r.close()