potiuk commented on pull request #11903:
URL: https://github.com/apache/airflow/pull/11903#issuecomment-717791362
@turbaszek - add this to `scripts/ci/libriaries/_initialisation.sh` (see
where it is added in master). This should help with image building.
```
# Determine current branch
function initialization::initialize_branch_variables() {
# Default branch used - this will be different in different branches
export DEFAULT_BRANCH=${DEFAULT_BRANCH="v1-10-test"}
export
DEFAULT_CONSTRAINTS_BRANCH=${DEFAULT_CONSTRAINTS_BRANCH="constraints-1-10"}
readonly DEFAULT_BRANCH
readonly DEFAULT_CONSTRAINTS_BRANCH
# Default branch name for triggered builds is the one configured in
default branch
# We need to read it here as it comes from _common_values.sh
export BRANCH_NAME=${BRANCH_NAME:=${DEFAULT_BRANCH}}
}
```
Explanation:
Since we cannot 'source' the scripts coming from the PR (it's dangerous
because we could run malicious code) we grep _initialization.sh to find out
which is the image branch and what is the constraints branch.
This is done (and explained) here:
https://github.com/apache/airflow/blob/db121f726b3c7a37aca1ea05eb4714f884456005/.github/workflows/build-images-workflow-run.yml#L280
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