`runCodeImport()` walked with a bare `gbrain sync --strategy code --source X`.
The strategy is right, but that walk is incremental: it only revisits files
changed since the source's checkpoint. A file missed at the ORIGINAL import is
therefore never revisited and stays out of the index indefinitely.
The reindex-code pass below cannot rescue it. It re-chunks pages that already
exist and never walks the filesystem — the same property the comment directly
above already relies on when explaining why the walk has to run first. That fix
landed one flag short: it made a fresh source get pages at all, but left
`--full` unable to discover a file the first walk skipped.
Net effect: `/sync-gbrain --full` did not perform a full walk, and re-running it
never re-detected the gap.
The failure is silent, which is what makes it expensive. Nothing errors, nothing
warns, and the verdict block still reports OK while `gbrain search` and
`gbrain code-def` answer out of a partial index. It reads as "gbrain is weak at
code questions" rather than "the index is incomplete".
Measured on two local code sources before and after this change, counting
exported functions resolvable via `gbrain code-def`: one went from 61/201 (30%)
to 180/201 (89%), importing 79 files that had no page at all; the other had
whole source files missing entirely and reached 93%. Both had been serving
search from a partial index for weeks.
Scoped to `--full` so incremental runs stay fast. `--yes` because this spawns
non-interactively and a full walk otherwise prompts to confirm import cost.
Anyone can check their own brain without applying this:
gbrain sync --source <id> --strategy code --full --dry-run
and compare "N file(s) would be imported" against that source's page_count.
Worth knowing while doing so: the default strategy is markdown and --strategy
is per-invocation, never persisted on the source, so dropping the flag reports
strategy=markdown and a handful of files.
The brain-sync stage failed on EVERY Windows run with "is not
recognized as an internal or external command", so /sync-gbrain always
reported ERR brain-sync among otherwise green stages.
#1731 gave these spawns shell: NEEDS_SHELL_ON_WINDOWS. That is correct
for the gbrain.cmd shim and does nothing here: shell:true routes through
cmd.exe, which resolves .cmd/.bat via PATHEXT but has no concept of a
shebang, so an extension-less bash script is rejected outright. A .cmd
shim needs a shell; a shebang script needs an interpreter. The two cases
look identical and are not.
The failure was quiet rather than loud. artifacts_sync_mode defaults to
pushing curated artifacts to git, so a Windows user's learnings piled up
uncommitted in ~/.gstack indefinitely while the sync report showed one
red line out of four.
New bashScriptInvocation() resolves Git for Windows' bash explicitly and
passes the script as argv[0]. It prefers Git bash over a bare `bash` on
PATH because WindowsApps ships a bash.exe that is the WSL launcher, which
would read C:\... as a Linux path; GSTACK_BASH overrides for unusual
installs; forward slashes because bash treats backslashes as escapes; and
it returns null when no bash exists so the stage says so plainly instead
of surfacing an unactionable spawn error.
The #1731 tripwire asserted the shape that does not work, so it now
asserts the opposite (never a raw spawnSync(brainSyncPath, ...)) and six
unit tests cover the resolver.
Verified on Windows: the stage now reports "OK brain-sync curated
artifacts pushed (4.2s)" and the artifacts repo committed + pushed on its
own. Affected-test set unchanged at 14 pre-existing failures before and
after, with 6 new passing tests.
ShahriarLak