a517655aade8641afa516016dc5474c2de093a0b
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Commits
| Author | SHA1 | Message | Date | |
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  sysadminandClaude Opus 4.8
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f858c1d1b2 |
fix(mcp): let a sanctioned recovery keep its own owning PR (Closes #755)
#753 added the dead-session author-lock recovery assessor, but no sanctioned
recovery could ever reach the lock write. A dead-session lock is by construction
a lock for work that already has an open PR, and the #400 duplicate-work gate
blocked unconditionally on any linked open PR. gitea_lock_issue computed
recovery_sanctioned, then discarded it one gate later:
open PR #750 already covers issue #749 (fail closed)
Because the recovered lock was never persisted, it stayed non-live, so
_prove_author_ownership_for_pr found no live author lock and
gitea_update_pr_branch_by_merge failed closed too. Both blockers had a single
cause, so only the first one is fixed here.
issue_lock_recovery.owning_pr_recovery_evidence distils a granted assessment
into the minimum evidence the duplicate gate needs: issue, branch, owning PR
number, and head. It returns None unless the outcome is RECOVERY_SANCTIONED and
the assessment's own evidence agrees that local head == remote head == PR head,
so a partial or hand-built assessment cannot authorize anything.
The duplicate gate takes that evidence and re-checks every element against the
live PR list it was handed: exactly one linked open PR, matching number, head
branch, head SHA, and locked branch. Only that exact self-owned PR is exempt.
A different PR, several linked PRs, a different branch or head, or evidence for
another issue all keep failing closed, with a diagnostic naming which element
disagreed. The competing-branch, claim-lease and commit/push/create_pr arms are
untouched, and with no evidence the gate behaves exactly as before.
Ownership proof needed no change: once the recovered lock persists under the
live session pid, _prove_author_ownership_for_pr matches it as before.
Out of scope: the PHASE_COMMIT/PHASE_PUSH/PHASE_CREATE_PR rechecks still block
on a linked open PR for every author, recovered or not. That is pre-existing
#400 behavior, unrelated to lock recovery, and #755 does not cover it.
Tests
- tests/test_issue_755_owning_pr_recovery.py (new, 31 tests) drives the real
mcp_server.gitea_lock_issue handler, not only the pure assessor: sanctioned
recovery relocks, persists a live lease with truthful dead_session_recovery
provenance, and satisfies _prove_author_ownership_for_pr; competing PR,
multiple linked PRs, mismatched head/branch/worktree, dirty worktree, live
prior pid, and a fresh claim with no prior lock all stay blocked.
- Neutralizing owning_pr_recovery_evidence regresses all three success tests to
the exact production error above, so the coverage is load-bearing.
- Focused suites (755, 753, duplicate gates, lock registration, provenance) —
102 passed.
- Lock/ownership/worktree/handoff suites — 172 passed, 16 subtests.
- Full suite tests/ — 3529 passed, 6 skipped, 2 failed, 365 subtests.
- The same 2 failures reproduce on a pristine detached worktree at
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sysadminandClaude Opus 4.8
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3edeba4d7f |
fix(mcp): allow author-lock recovery after the owning session exits (Closes #753)
A durable author issue lock records the PID of the MCP session that took it.
When that process exits, assess_lock_freshness marks the lock stale (live=False)
even while its lease is still within TTL, so every ownership check that needs a
live lock fails closed -- including gitea_update_pr_branch_by_merge.
Re-taking the lock was unreachable for real work. assess_issue_lock_worktree
requires the worktree to be base-equivalent to master/main/dev, and a branch
that already carries commits is ahead of its base by construction. The existing
assess_expired_lock_reclaim affordance does not apply either: it is only
consulted once the lease has expired, so a dead PID under an unexpired lease
never reaches it. assess_own_branch_adoption already speaks of "lock recovery",
but it runs after the base-equivalence gate and so was never reached.
This adds issue_lock_recovery, a pure assessor that grants a narrow waiver only
when every element of durable ownership still matches exactly and the recorded
process is demonstrably dead: same remote/org/repo/issue, same branch (and the
worktree actually on it), same registered worktree, clean worktree, local head
== remote head == open PR head, same claimant identity/profile, no competing
live lock or lease, and no ambiguous branch claims. A malformed or incomplete
lock record can never prove ownership.
The waiver suppresses base-equivalence and nothing else. Cleanliness and every
other precondition still apply, and brand-new issue claims keep the full
requirement. A refused assessment never raises: it withholds the waiver and
lets the pre-existing guard fail closed exactly as before, so recovery can only
ever add permission, never remove a guard. Refusal reasons are appended to the
block message so a caller sees the exact missing evidence.
A completed recovery is recorded on the lock as dead_session_recovery with the
prior and replacement session PIDs, heads, and claimant, so the takeover is
auditable and never looks like an original claim. Rebinding sets the live
session PID, so the recovered lock satisfies verify_lock_for_mutation and the
downstream PR update paths.
Validation:
* new tests/test_issue_753_dead_pid_lock_recovery.py -- 33 passed
* issue-lock, adoption, store, provenance, registration, duplicate-gate,
worktree, create-issue-guard suites -- 120 passed
* MCP server, commit payloads, handoff ledger, PR ownership, branch cleanup
suites -- 286 passed
* full suite -- 3498 passed, 6 skipped, 2 failed
* the same 2 failures reproduce identically on pristine master
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