gitlab-ci: exclude merge requests from specific branch

Question

I would like gitlab-ci to ignore merge from a specific branch.

Example: I have 3 branches. master, development & test.

If I push the code directly or merge the code from any branch to master/development, the pipelines get executed.

Now, I don't want pipeline to get running when I merge from test branch specifically.

I would like to exclude merge from test branch to development or master.

Answer 1

This can be done by specifying an if-rule for the jobs you want to exclude. For example:

docker build:
  script: docker build -t my-image:$CI_COMMIT_REF_SLUG .
  rules:
    - if: '$CI_MERGE_REQUEST_SOURCE_BRANCH_NAME != "test" || ($CI_MERGE_REQUEST_SOURCE_BRANCH_NAME == "test" and ($CI_MERGE_REQUEST_TARGET_BRANCH_NAME != "master" || $CI_MERGE_REQUEST_TARGET_BRANCH_NAME != "development"))'

The 2 variables CI_MERGE_REQUEST_SOURCE_BRANCH_NAME and CI_MERGE_REQUEST_TARGET_BRANCH_NAME are automatically defined only in the case of a merge request.