Beagle SCM

JS-050: bin/delete.js — staged removal + branch tombstone

be delete as JS: stage a file's removal (dirty-gate → unlink → delete row), bare-sweep vanished tracked files, dir recursive-unlink, and the ?br branch tombstone. Reuses JS-049's stage.js. ← JS-047+JS-048+JS-049. Part of JS-046. Method: Issues.

Input

Context

• Native sniff/DEL.c: named delete refuses DELDIRTY if mtime ∉ stamp-set (:492), then FILEUnLinks (:500), then appends delete <path> (no file stamp). Bare delete sweeps baseline files gone from disk (del_sweep_missing :307); dir-form is preflight-then-unlink (del_dir :210).
• ?br→DELBranch tombstone ?br → 000…0 (:736); refuses trunk / wt-on-branch / active descendants unless -r (deepest-first, :664).

Goals

• bin/delete.js: path/dir/bare staging (reuse stage.js), branch tombstone via store.tombstone (JS-048) with the trunk / on-branch / -r guards.

Constraints

• libabc+libdog ONLY. Byte-equivalent to native be delete. DELETE physically unlinks BEFORE logging — back the dirty-gate with classify.wtEqBase (content, not just mtime) so a user's edits are never silently removed.

WIP

Design decisions

• stage.js gains a delete mode (unlink + dirty-gate); bare-sweep + dir recurse reuse the baseline-walk already in stage.js.

TODOs

• Repro-first parity test/js/delete/*: file / dir / bare-missing / branch tombstone (+ -r) — JS vs native be delete: rows, unlinked files, REFS. (Now be/test/delete/*: file/dir/dirty/bare-missing/branch/branch-recursive /nonexistent, 8 cases.)
• Implement delete.js. (e0f79ff0.)

Blockers and bummers

• ← JS-049 (stage.js), JS-047, JS-048 — all landed 2026-06-22.

Outcome

• LANDED e0f79ff0 (bin/delete.js + shared reanchor test helper). Today at be/verbs/delete/delete.js (beagle-ext shard), staging via be/shared/stage.js; parity suite be/test/delete/*. Audited 2026-07-07.