- `wo_wal_resolve_data_path` (database/src/wal.c|h): an existing directory
or a trailing `/` → `<dir>/shard-0.wal` byte for byte (the `//` after a
trailing slash included); otherwise the path IS the log — opened if a
regular file, created by `wo_wal_open` if absent under an existing parent.
- Refusals as codes for main.c: WO_WAL_PATH_NO_PARENT (out = the parent, so
the line names it), WO_WAL_PATH_NOT_A_FILE (fifo/socket/device),
WO_WAL_PATH_TOO_LONG (today's snprintf truncated silently).
- `parent_dir_of` shared by the resolver and `sync_parent_dir`: the parent
checked at boot IS the parent fsync'd after a compaction/migration rename.
- runtime/src/main.c: the resolver replaces the unconditional
`"%s/shard-0.wal"`; each refusal is one stderr line, exit 2 through the
6a destroy sequence; never mkdir -p. The 6a block is untouched.
- Failing first: test_resolve_data_path — 4× -Werror (implicit declaration
+ three undeclared codes); green after: 21 assertions (dir, trailing
slash, absent file, regular file, bare name, missing parent, parent is a
file, fifo, two too-long).
- `make -C runtime test`: 21 suites, 8374 pass / 0 fail (was 8353/0).
`make -C runtime wovm-asan` clean; smoke: file form seeds + replays with
`app.db` the only artifact; missing parent and fifo refuse rc 2 naming
path + parent; dir and trailing slash unchanged; WO_EPHEMERAL conflict
inherited from 6a.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
(cherry picked from commit b31bd4052624be460de1c18cf208661539397e09)
shoney.arickathil
c19a01564f