CI_COMMIT_BEFORE_SHA is all zero in a merge request pipeline
Summary
CI_COMMIT_BEFORE_SHA is all zero in a merge request pipeline. According to the document, it should refer to the commit before the merge request.
Steps to reproduce
- Fork a project
- Add a job into
.gitlab-ci.yml
show_env:
stage: test
script:
- env
only:
- merge_requests
- Commit, then create a merge request
- Check output from job
show_env
in merge request pipeline
What is the current bug behavior?
Some of the environment variables:
CI_COMMIT_BEFORE_SHA=0000000000000000000000000000000000000000
CI_MERGE_REQUEST_REF_PATH=refs/merge-requests/1/head
CI_MERGE_REQUEST_SOURCE_BRANCH_NAME=master
CI_MERGE_REQUEST_TARGET_BRANCH_NAME=master
CI_MERGE_REQUEST_SOURCE_PROJECT_URL=https://gitlab.xxx/MY_ID/test
CI_MERGE_REQUEST_PROJECT_URL=https://gitlab.xxx/my_group/test
What is the expected correct behavior?
CI_COMMIT_BEFORE_SHA
should be a valid commit SHA.
GitLab environment info
gitlab 11.6 gitlab-runner 11.6.1