GitService.issueIdFromCommit failing when Issue ID is not on the first line in a multiline commit message

[mariussl]

Describe the bug
Some time (around 6 weeks) ago bitbucket changed the content of the automatically generated merge commit message for pull requests. My bitbucket version is now 7.21.7 .

Before:

Pull request #43: Feature/MYPROJECT-147 jenkins pipeline broken

Merge in MYPROJECT/myrepo from feature/MYPROJECT-147-jenkins-pipeline-broken to master

* commit 'b5b627a315fa9e739d81d7c38d937676d44795d7':

Now:

Pull request #49: adapt to new url

Merge in MYPROJECT/myrepo from bugfix/MYPROJECT-483-url-is-defect

* commit '0749118969654c44f400f6a3034ae3bd5bb48969':

Since this change the context.issueId in my Jenkinsfile inside the odsComponentPipeline is always empty when a pull request for a feature/bugfix branch is merged back to master.

I believe the problem is in GitService.groovy Line 44ff : The msgMatcher does not carry the multiline flag to also check subsequent lines for an issue id.

Changing the code as follows should fix the bug:

def msgMatcher = commitMessage =~ /(?m)${uppercaseProject}-([0-9]+)/

To Reproduce
Steps to reproduce the behavior:

1. Create a bugfix/feature branch
2. Change something
3. Create a pull request
4. Edit Jenkinsfile to output context.issueId
5. Merge pull request with a multiline commit message that has the PROJECTID-ISSUED not on the first line (as Bitbucket 7.21.7 does it automatically)
6. Observe output of context.issueId to be empty

Expected behavior
When merging a pull request with PROJECTID-ISSUEID somewhere in a multiline commit message context.issueId should be set accordingly.

Affected version (please complete the following information):

• OpenShift: 4.11
• OpenDevStack: 4.1.0 + Master

Gradle code to test regex
Remove the (?m) flag in the matcher and the regex fails.

def s = """
Pull request #50: remove

Merge in ODMC/odmc-fullstack from bugfix/MYPROJECT-484-test-pull-request-message to master

* commit '99dee286861205fcf0d5ad787ce53c69c77770bf':
  remove
"""

def msgMatcher = s=~ /(?m)MYPROJECT-([0-9]+)/

if (msgMatcher) {
   println("yes")
   println(msgMatcher[0][1])
} else {
   println("no")
}
​