feat(fleet-data): add git module for cross-lane PR awareness#26
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NagyVikt merged 1 commit intoMay 14, 2026
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Adds rust/fleet-data/src/git.rs — a thin subprocess wrapper around `gh pr list --json` and `git merge-base --is-ancestor`, with the same shape as accounts/tmux/panes (subprocess + pure parse + typed output + TTL-cached loader). Purpose: answer the question colony's readyScopeOverlapWarnings will ask — "for candidate lane B claiming files F, which open PRs touch F and have not yet been absorbed into B's base?" The data-layer answer lives here; the colony-side consumer extends readyScopeOverlapWarnings in a follow-up PR to surface a merge_pending warning in next_action. Per task_claim_file's docstring, Colony's coordination is soft — never a hard block — so the autopilot deprioritizes such candidates rather than refusing them. Cache TTL is 45s, tuned against gh's 5000/hr rate limit: four dashboard binaries each refreshing once per window peak at ~320 calls/hr, two orders of magnitude under the cap, while a newly-opened PR still surfaces within ~one minute. Failure posture mirrors accounts.rs: no gh on PATH, unauthenticated, or a parse failure all return Ok(vec![]) so a dashboard without gh access renders no warnings rather than crashing. branch_contains_pr conservatively returns Ok(false) on lookup failure — "cannot prove this PR is merged" produces a warning, which is the safe default. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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