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Hook for Pull Request

What kind of a hook can I implement to check for Pull Request, or when a pull request has been created in a repository ??

All I want to do is check the message in a pull request and reject the pull request if the pull request message does not contain a valid JIRA...



1 answer

Hi Ishan,

You can just add a normal atlassian-plugin.xml component by using PullRequestOpenRequestedEvent.

public void onPullRequestOpen(PullRequestOpenRequestedEvent event) {
    for(Changeset changeset : pullRequestService.getChangesets(event.getPullRequest().getToRef().getRepository().getId(), event.getPullRequest().getId(), new PageRequestImpl(0, 100)) {
        if (changeset.getAttributeValues("jira-key").isEmpty()) {
            event.cancel(i18nService.getKeyedText("your.plugin.i18n.warning", "Missing JIRA key in message '{0}'", changeset.getMessage());

That code isn't tested and may not even compile. Apologies it's not something we're really advertising which may explain the lack of documentation.

Just a question though - if the user tries to create the pull request and fails, do you normally advise users to amend their messages in git? That requires you don't mind your users using force push (or deleting/creating the branch again). What if they have multiple commits and the very first one is missing a JIRA key - are your users familiar/comfortable with 'git rebase -i'?

I definitely understand the requirement, but I worry that the distributed nature of Git will make this workflow hard to enforce in all cases. I'd love to understand how this kind of restriction works in your environement?



Very good point Adam.

You can also use the above event to restrict the PR based on title/description as well. I agree this is preferable to restricting by commit message, although as you say it doesn't mean that the PR will actually be linked to the JIRA issue.



Adam Atlassian Team Sep 12, 2013

Something that might work better with a Git workflow is checking the pull request description or title for JIRA keys, rather than actual commits. Those should be much easier to amend if they are missing a JIRA key.

That won't enforce any hard, back-end link between the pull request and the JIRA issue, but it ensures there's a link there at least in human-readable form. In 2.7+, issue keys in the description will also show as <a> tags that bring up issue information in a dialog.

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