[GitHub] [airflow] potiuk commented on a change in pull request #10912: Fixes retrieval of correct branch in non-master related builds

[GitBox <gi...@apache.org>]

potiuk commented on a change in pull request #10912:
URL: https://github.com/apache/airflow/pull/10912#discussion_r488049915



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File path: .github/workflows/build-images-workflow-run.yml
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@@ -209,6 +209,18 @@ jobs:
         uses: actions/checkout@v2
         with:
           ref: ${{ needs.cancel-workflow-runs.outputs.sourceHeadSha }}
+      - name: "Retrieve DEFAULTS from the _initialization.sh"
+        # We cannot "source" the script here because that would be a security problem (we cannot run
+        # any code that comes from the sources coming from the PR. Therefore we extract the
+        # DEFAULT_BRANCH and DEFAULT_CONSTRAINTS_BRANCH via custom grep/awk/sed commands
+        run: |
+          DEFAULT_BRANCH=$(grep "export DEFAULT_BRANCH" scripts/ci/libraries/_initialization.sh | \
+            awk 'BEGIN{FS="="} {print $3}' | sed s'/["}]//g')

Review comment:
       Not really the form of it is export DEFAULT_BRANCH=${DEFAULT_BRANCH:="master"} so that it can be overridden.
   
   




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