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A job launched with an scm_branch override did not propagate that
branch to the auto-triggered ("dependency") project update or SCM
inventory update, so the inventory could sync against the project's
default branch instead of the branch the job actually ran on.
DependencyManager now passes the job's scm_branch into the eager
fields of dependency-spawned ProjectUpdate/InventoryUpdate objects,
gated on the relevant project's allow_override and skipped when the
inventory source already has its own pinned scm_branch. RunInventoryUpdate.build_project_dir
now reads the branch from the InventoryUpdate instance itself rather
than always re-reading the InventorySource's static field, which had
been silently discarding any per-run override.
Fixes ansible#5692
Signed-off-by: Liam Allen <lallen@redhat.com>
lallen92
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Included review availability: Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 WalkthroughWalkthroughLaunch-time SCM branches now propagate to eligible project and inventory updates. Pinned branches remain unchanged. Dependency reuse matches effective branches. SCM synchronization uses the update-level branch and conditional locking. ChangesSCM branch dependency flow
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Bug fix · Severity of issue fixed: Medium Sequence Diagram(s)sequenceDiagram
participant Job
participant DependencyManager
participant ProjectUpdate
participant InventoryUpdate
participant SCM
Job->>DependencyManager: launch with scm_branch
DependencyManager->>ProjectUpdate: select or create matching branch update
DependencyManager->>InventoryUpdate: select or create effective branch update
InventoryUpdate->>SCM: synchronize using inventory_update.scm_branch
Suggested reviewers: Merge Risk: ⚪ Minimal · up to The branch propagation and reuse changes have no identified merge-blocking issue. The lock transition does not cause duplicate SCM synchronization after another caller completes its update. 🚥 Pre-merge checks | ✅ 3 | ❌ 2❌ Failed checks (2 warnings)
✅ Passed checks (3 passed)
Full details: Out of Scope Changes checkExplanation Most changes support issue
✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
In `@awx/main/scheduler/task_manager.py`:
- Around line 349-365: Update get_or_create_project_update and the dependency
reuse logic reached from gen_dep_for_job to resolve the request’s effective SCM
branch, accounting for source pins, project defaults, and disallowed overrides,
then require reused project updates to have the same branch; otherwise create a
new update for that branch.
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awx/main/scheduler/task_manager.pyawx/main/tasks/jobs.pyawx/main/tests/functional/task_management/__init__.pyawx/main/tests/functional/task_management/test_scheduler.pyawx/main/tests/unit/tasks/test_jobs.py
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Inline comments:
In `@awx/main/scheduler/task_manager.py`:
- Line 395: Update gen_dep_for_inventory_update to pass
inventory_task.scm_branch into get_or_create_project_update, ensuring each
inventory update depends on the project update for its effective branch. Add a
same-schedule multi-branch test verifying every inventory update is linked to
its matching branch’s project update.
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❌ Test Results - FAILEDSummary
Pass Rate: 84.5% ❌ Failed Tests
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When a job template is launched with an scm_branch override, the job's project correctly checks out that branch — but a project-linked (source == 'scm') inventory source that syncs as a dependency of the job keeps syncing against the project's default branch instead. This produces jobs that run the intended playbook against the wrong inventory whenever the inventory content differs between branches.
This has been an open complaint since 2020 (#5692). A prior closed PR (#13587) attempted the same fix but never merged, and a currently-open PR (#14101) patches part of the problem but is stale/conflicting and doesn't fix the second root cause below.
Two independent gaps caused this:
Fixes #5692
Solution
silently overridden by whatever branch a job happens to run on. (Note this checks the inventory source's own source_project, not the job's project, since they can differ.)
-RunInventoryUpdate.build_project_dir now uses inventory_update.scm_branch instead of inventory_update.inventory_source.scm_branch. This is safe/backward-compatible because AWX's standard template→job field-copy mechanism already copies scm_branch from the source onto every new InventoryUpdate by default — this line only changes which copy of that value is authoritative, unlocking the per-run override from the point above.
No migrations, serializer, or UI changes needed — scm_branch already exists on both InventorySource and InventoryUpdate from a previously merged fix (#12073).
Test Plan
dependency still gets the override).
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Summary by CodeRabbit
New Features
Bug Fixes