[3.14] gh-134309: Add ``github.actor`` to the GitHub Actions concurrency key (GH...

gh-134309: Add ``github.actor`` to the GitHub Actions concurrency key (GH-134310)

When inexperienced users create a PR from their default branch, all of the concurrency keys
collide as there is no namespacing. This becomes an issue at events with many new contributors,
where workflow runs are cancelled on other pull requests.
Disambiguate by adding the username of the relevant 'actor' to the concurrency key.
(cherry picked from commit 979d81a17905e922d32fb1671f9ed394e0ffbda6)

Authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Kira <coldcaption@gmail.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Sviatoslav Sydorenko <sviat@redhat.com>
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3478af18f0e9cb1b4745535b0df9719a2e677b8c..e26433786f74e44898a3e914f0f0cdca94c7c823 100644 (file)
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,7 +15,13 @@ permissions:
   contents: read
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}-reusable
+  # https://docs.github.com/en/actions/writing-workflows/workflow-syntax-for-github-actions#concurrency
+  # 'group' must be a key uniquely representing a PR or push event.
+  # github.workflow is the workflow name
+  # github.actor is the user invoking the workflow
+  # github.head_ref is the source branch of the PR or otherwise blank
+  # github.run_id is a unique number for the current run
+  group: ${{ github.workflow }}-${{ github.actor }}-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true
 
 env: