Review round 1 on PR #189 (three tests stayed green with their guard
removed):
- TestEditRefusesANoteBehindASymlinkedDirectory had no .git, so Edit
refused "not the sync source" before any path check. It now has one,
plus a positive control.
- AppendRegular's unclean-path case was refused by a final symlink, not
cleanRel. New test where ".." after a symlinked dir resolves to a real
file, for AppendRegular and PutRegular.
- brainfs.Remove had no test; new one (refuses behind a symlinked dir,
removes a final link but never its target, positive control).
Also: promote/reject create with O_EXCL (new brainfs.CreateRegular), so a
note that appears after the collision check is never overwritten;
gofmt fixes in provenance.go and wiki/log.go; dead wingDir and
putBrainFile removed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Writers that created or rewrote brain files by path followed symlinks:
- promote/reject: os.MkdirAll + os.WriteFile of the destination, then
os.Remove of the raw source. Now PutRegular + brainfs.Remove; the source
is kept when the write is refused.
- StampProvenanceFile (brain_edit's re-stamp): provenance.ApplyFile read
and rewrote by path. Now ReadRegular + WriteRegular; ApplyFile, now
unused, is removed.
- BuildWingIndex (_index.md) and wiki.RebuildIndex (wiki/index.md): now
PutRegular.
- wiki.AppendLog (log.md) and AutoTunnel's fuzzy-candidate log
(raw/tunnel-candidates-*.md): now AppendRegular; tunnel's fileExists,
now unused, is removed.
- New brainfs.Remove: clean path, real parent, removes a final symlink
itself, never its target.
brain_edit's own atomic rename was already refused behind a symlinked
directory by #187's read check; a guard test pins it.
Pipeline writes, BackfillRefs, the watcher's raw/ markers and the session
archive in cmd/server follow in a separate PR (#158).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Closes#144 (audit line per tools/call) and #145 (origin/written_by stamped on every model-reachable write, surfaced in brain_query/brain_get).
Passed pr-gatekeeper after four rounds of adversarial review, verified by execution: #147
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Mathias <mthbqv@gmail.com>