How to check on preceive hook merge commit?

Gonchik Tsymzhitov Community Champion Sep 25, 2017



We have upgraded Bitbucket to 5.3. from 4.14 version. 

And now our preceive hook can match merge commits.

private final Pattern mergeBranchPattern =
boolean isMerge = false;
String mergeBranch = "";
Collection<MinimalCommit> parents = cs.getParents();
if (parents.size() > 1) {
Matcher m = mergeBranchPattern.matcher(comment);
if (m.find()) {
isMerge = true;
mergeBranch =;
} else {
rejects.add("Merge commit message should start from word \"Merge...\"");
return rejects;


Could you help which changes was on 5.3. version for merge commits? 

Thank you


Additional info about Merge strategies: 

Merge commit--no-ff





1 answer

1 accepted

This condition is helped 

private final String pullRequestEvent ="pull-request-merge";
String eventTrigger = repositoryHookRequest.getTrigger().getId();
if (eventTrigger.equalsIgnoreCase(pullRequestEvent)) {"Excepted Merge Pull request");
return RepositoryHookResult.accepted();


Suggest an answer

Log in or Sign up to answer
Atlassian Community Anniversary

Happy Anniversary, Atlassian Community!

This community is celebrating its one-year anniversary and Atlassian co-founder Mike Cannon-Brookes has all the feels.

Read more
Community showcase
Piotr Plewa
Published Dec 27, 2017 in Bitbucket

Recipe: Deploying AWS Lambda functions with Bitbucket Pipelines

Bitbucket Pipelines helps me manage and automate a number of serverless deployments to AWS Lambda and this is how I do it. I'm building Node.js Lambda functions using node-lambda&nbsp...

1,755 views 1 5
Read article

Atlassian User Groups

Connect with like-minded Atlassian users at free events near you!

Find a group

Connect with like-minded Atlassian users at free events near you!

Find my local user group

Unfortunately there are no AUG chapters near you at the moment.

Start an AUG

You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs

Groups near you