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Adam Perry @ OpenAI 1168254bd9 [codex] group blocking and postmerge CI workflows (#30146)
## Why

It's hard to change the set of required jobs when they're managed in the
GitHub UI, and when each workflow is responsible for choosing it's own
scheduling it's easy to end up with skew between what we enforce on PRs
vs. on main.

## What

- add a `blocking-ci` caller workflow, triggered by pull requests and
pushes to `main`, for Bazel, blob size, cargo-deny, Codespell,
`repo-checks`, rust CI, and SDK CI
- add an `always()` terminal job named `CI required` that fails unless
every called workflow succeeds
- add a `postmerge-ci` caller workflow for `rust-ci-full` and
`v8-canary`, with a terminal `Postmerge CI results` job
- centralize V8 relevance detection in `v8_canary_changes.py`; unrelated
PR and postmerge runs execute metadata only and skip the expensive build
matrices
- leave `v8-canary` outside the blocking gate and leave the external
`cla` check independent

## Rollout

A repository admin must replace the existing required GitHub Actions
contexts with `CI required` in the main-branch ruleset. Retain `cla` as
a separate required check. Until that change is coordinated, this PR
cannot satisfy the old standalone check names. In-flight PRs will need
to be rebased after this lands.
2026-06-26 15:07:05 -07:00

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Python

#!/usr/bin/env python3
"""Fail a terminal CI job unless every serialized dependency succeeded.
Parent workflows pass GitHub's `toJSON(needs)` object through the NEEDS
environment variable. Treat skipped and cancelled dependencies as failures too:
for a required fan-in job, only an explicit success is safe to accept.
"""
import json
import os
def main() -> None:
# Keep result policy in one script so blocking-ci and postmerge-ci cannot
# drift in how they interpret dependency conclusions.
needs = json.loads(os.environ["NEEDS"])
failures = sorted(
(name, dependency["result"])
for name, dependency in needs.items()
if dependency["result"] != "success"
)
if failures:
print("CI dependencies did not succeed:")
for name, result in failures:
print(f"{name}: {result}")
raise SystemExit(1)
print("All CI dependencies succeeded.")
if __name__ == "__main__":
main()