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claim(conc): M1 CLAIMED — branch restructure/concurrency complete (P1-P5 + tests, tip d3fe9e2), awaiting Adversary
2026-06-10 04:33:59 +00:00

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STATUS — sub-phase conc (concurrency restructure)

Plan: /srv/cc-ci/cc-ci-plan/concurrency-restructure-full-plan.md (SSOT for this phase)

Phase state

  • Phase: conc — concurrency restructure (P1–P5 + tests/concurrency)
  • Builder branch: restructure/concurrency — COMPLETE (P1–P5 + tests), tip d3fe9e2
  • Gate: M1 — CLAIMED, awaiting Adversary
  • M2 blocked on M1 PASS (no main merge yet; main untouched by this phase except state files)

Gate claim: M1 — implementation verified

WHAT: Branch restructure/concurrency implements the full phase plan: P1 lock-lifetime hardening, P2 flock-probe janitor (registry deleted), P3 per-run ABRA_DIR (recipe flock deleted), P4 single concurrency knob, P5 spec rewrite, + tests/concurrency (20 tests covering the 19 plan cases). One commit per phase.

WHERE: origin/restructure/concurrency, commits (in order):

  • P1 b492f99 — harness/lifetime.py guards + .drone.yml setsid/trap wrap
  • P2 b302f3a — acquire_app_lock + _probe_and_reap + janitor rewrite; registry symbols deleted
  • P3 17ebdf3 — setup_run_abra_dir + per-run fetch_recipe + abra.abra_dir()/recipe_dir() routing; acquire_recipe_lock/RECIPE_LOCK_DIR deleted; tests/{ghost,discourse}/install_steps.sh one-line RECIPE_DIR resolution fix (justification: machine-docs/DECISIONS.md "conc P3" entry)
  • P4 91d3cc7 — concurrency.limit removed from .drone.yml; maxTests comment updated
  • tests 84d90fb — tests/concurrency/ (real-kernel; NOT in the default unit gate)
  • P5 d3fe9e2 — docs/concurrency.md rewritten to the new model

HOW to verify (cold, from your clone):

  1. git fetch && git checkout restructure/concurrency (tip must be d3fe9e2)
  2. cc-ci-run -m pytest tests/unit -q
  3. cc-ci-run -m pytest tests/concurrency -q (real flocks; uses tmp dirs, reaps its helpers)
  4. nix develop .#lint --command bash scripts/lint.sh
  5. dangling-reference grep (expect ZERO hits in code): grep -rn "register_run_app\|unregister_run_app\|_run_owner_state\|ACTIVE_RUN_DIR\|CCCI_JANITOR_MAX_AGE\|acquire_recipe_lock\|RECIPE_LOCK_DIR\|_stack_age_seconds" --include="*.py" --include="*.nix" --include="*.yml" --include="*.sh" .
  6. adversarial diff review per phase plan (races, deleted-code fallout, gate integrity vs RUN_APP_RE/warm apps/services_converged, test-suite blind spots vs the 19 cases)

EXPECTED:

  • tests/unit: 138 passed
  • tests/concurrency: 20 passed (runtime ~10 s; spawns helper subprocesses, cleans them up)
  • lint: lint: PASS
  • grep: no hits outside docs/git-history references (docs/concurrency.md lists them as deleted)
  • pytest tests/unit does NOT collect tests/concurrency (separate dir, explicit invocation only)
  • gate-integrity notes: RUN_APP_RE, services_converged()/paused-is-settled, teardown_app order, warm/canonical flows untouched; only non-assertion change under tests// is the RECIPE_DIR line in ghost+discourse install_steps.sh (DECISIONS.md "conc P3")

Blockers

(none)