A coverage map must cover every function it lists, and five of the seven
variants covered only function 1, so the map failed to parse and the test
stopped at its setup ("map is NULL") with the fix applied or not. The
changed function (0) is now covered by the setup row of a suite no runner
registers, so alpha's own rows stay quiet and each variant still reaches
alpha by exactly one path. RED with the selection fix reverted (alpha
lacks CONDITIONAL), green with it.
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>
A runner suite registered only under a preprocessor condition (the four
coverage_* suites under `#if defined(CBM_TEST_COVERAGE) && !defined(_WIN32)`
in tests/test_main.c) is absent from builds without that condition. The
selection marked such a suite CONDITIONAL only on the per-registration path,
and only when a registration of its own was conditional and contributed a
reason. Every suite-level path (setup unknown or hit, suite-body, changed and
rule triggers, inventory, rejected artifact) made the suite whole without it,
and the runner registration's own condition was never recorded.
PR CI on the x86 Linux gcc leg then failed with "the test selection names
suites this build does not register: coverage_setup_success
coverage_setup_uncertain" (#2679, #2680): the suite-body trigger and an
incomplete setup row selected both suites whole without CONDITIONAL, so
selection.py left them out of optional-suites.txt.
The model now records whether a runner registration sits under a condition
(conditional only when every site of the suite is), and the selection marks
any selected conditionally registered suite whole with CONDITIONAL after every
whole-suite path. Unconditionally registered suites keep the strict contract.
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>
Two Windows-only compile errors, hidden until now because the Windows leg
stopped at its contract steps before building the runner:
- test_test_impact.c calls cbm_find_cli under _WIN32 without including
cli/cli.h (an implicit declaration, an error in clang).
- test_test_impact_engine.c canonicalizes the fixture's temp dir with
realpath, which Windows does not have. It now uses _fullpath there, with
forward slashes like the paths the fixture builds from it, the same split
test_daemon_ipc.c makes.
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>
A main commit can now publish its test-impact bundle — the commit's frozen
graph, its per-test coverage map and receipt.json binding both — and a PR
selection given the bundle of its merge base, verified by the caller,
builds its graph incrementally from the bundle's graph and narrows suites
by the admitted map. Without a verified bundle nothing changes: the graph
is built from scratch and every reached suite runs whole.
Producer and consumer:
- `codebase-memory-mcp test-impact publish|select` (in process, no
daemon): publish builds the bundle of the checked-out commit, from the
previous bundle's graph when that bundle verifies; select is the
selection with optional --artifact/--artifact-commit/--artifact-verified.
The MCP surface is unchanged.
- receipt.json binds the exact imported graph (graph digest), the graph's
content and topology, the map's three files and a compatibility digest
(platform label + the bytes of test_impact.coverage.compatibility_paths).
- A bundle is used only when the caller verified its source, it is the
merge base's own, and its imported graph is the one the receipt names;
the map is admitted by the existing receipt policy (source, ancestry,
content, age, compatibility, metadata). Refusals become rejection
reasons in the answer's receipt.
- C_eff: a changed function the map knows contributes its own id; one it
does not know (new, platform-only, a type or macro) contributes its
nearest mapped callers on the static inbound closure; deleted names
contribute every mapped function of that name.
Graph:
- the frozen build accepts a base candidate and repairs it through the
incremental closure route; any doubt declines to the full build. Pinned
to one worker like the full frozen build.
- incremental closure repair skipped the interprocedural complexity pass:
re-parsed functions lost transitive_loop_depth/recursive and callers kept
stale values. One traversal now serves the in-memory pass and a new
store-level recompute that runs before the importance rescore.
- test-impact's frozen builds use a fixed display Git context: the per-run
pin path and the commit ids made two builds of one tree differ and made
every commit a semantic-input change, so repair always declined.
- graph content and topology digests (store_content_digest.c): the exact
graph digest binds one database (ids, db_uid, generation), never equal
across builds; the content digest keys rows by what they say, the
topology digest by what selection reads.
Measured on this repository (frozen publish, macOS arm64): a two-file C
change repairs in 18-20 s instead of 75-80 s with the topology of the full
build; a docs-only change repairs with identical content; selections with
and without the bundle are identical on all seven replayed pairs
(two repaired incrementally, five declined to the full build). Recorded, not
fixed: closure repair still differs from a full build in edge PROPERTIES
(argument quoting and key order, CONFIGURES args) and in the corpus-wide
SIMILAR_TO/SEMANTICALLY_RELATED edges; selection reads neither, so the
topology digest is the incremental-equals-full check and the receipt
carries both.
Tooling: scripts/test-impact/coverage-merge.py builds a push's incremental
coverage map (re-run suites verbatim, the rest carried with ids remapped
onto the new image's function table), with its contract as test.sh Step
0z7.
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>
One request pins the change (merge base .. HEAD), builds the graph and the
runnable test registry of exactly the HEAD snapshot, seeds the graph from
the change, walks what depends on it and answers which tests to run
(cbm.test_impact). Missing or doubtful evidence never narrows: it becomes a
run-all answer that names why.
Snapshot (classified ledger -> frozen graph -> registry):
- one shared language classifier for discovery and pinned blobs (raw bytes
on every platform); the classified ledger feeds the frozen build, which
indexes exactly the listed files and records partial parses as per-file
PARSE_GAP instead of refusing the graph;
- the pinned tree skips symlinks and submodule links (counted), as
discovery never indexes them;
- the test model scopes uncertainty to the suites of its file (they run
whole), reads line splices where they occur, treats a mid-file
`#ifndef X` + `#define X` as an ordinary condition, and no longer reads a
plain identifier named like a macro as an invocation. On this repository
the registry is now narrowable and matches a text census exactly
(8,365 cases, 141 runner suites).
Seeding and reach (port of the measured replay, rule B):
- hunk -> overlapping definitions, comment-only hunks dropped, pure
deletions -> enclosing definition, no-definition hunks -> whole file,
deleted names found by text, header changes propagated through the
include closure and the headers' macros (pastes included), file-level
escalation for unclassifiable header lines;
- inbound fixpoint walk over CALLS, ASYNC_CALLS, USAGE, CALL_REFERENCE,
READS (+ routes); cases, suites and the runner's entry points are sinks;
a reached runner main runs everything (RUNNER_REACHED);
- a parse gap whose text names a reached definition reaches the
definition around it (or its file);
- macro-registered tests run their suites whole; cases and suites map to
graph nodes by their start line.
The line patterns reproduce the reference regexes exactly on 1,383,850
lines of this repository and 37,167,926 kernel lines; on 24 replayed
changes the engine selects at least what the reference selected (13
identical, the rest only conservative supersets on the same graph).
Also:
- configured test declarations that cannot be mapped degrade their file
(no configured roles, a test_declarations diagnostic) instead of
aborting the whole index;
- the selector keeps other runners' suites out of the selection, and the
result codec judges the model by narrowability like the selector;
- a change to .codebase-memory.json runs everything (built-in rule);
- .codebase-memory.json with the c-cbm preset and this repository's rules.
Gate fixes (suites, lint-ci, Windows cross-compile):
- the request runs on its own thread with a default-size stack (daemon
tool calls run on 256 KiB threads, where the in-process build died);
- a request-supplied config_path is no longer followed by an unlink of an
uninitialized path buffer;
- the inventory's frame-local reader no longer stays reachable from the
caller's source after the filter call;
- FILE_ID_INFO needs _WIN32_WINNT >= 0x0602; the pinned-tree header pins
it before any system header (toolchains defaulting lower failed);
- memory-core ratchet: the win_utf8 converters gain core-backed
`_in(cls, ...)` forms over one implementation (the legacy names keep
the C library for unmigrated callers), the Git facts module uses them,
and the Windows spawn path releases everything through one failure
exit; pipeline, extraction and config allocations that this work
touched moved to the core in matched pairs; baselines tightened;
- the branch's C files formatted with the project's clang-format.
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>
Preserve the current selector, frozen-input inventory, result codec,
coverage collection, runner filtering, and isolated Windows venue work.
Component-level regression proofs are recorded in the PR handover.
The live classified provider, public execution integration, artifact
admission, fresh oracle/shadow evidence, and full platform gates remain
incomplete. This checkpoint does not enable or claim verified narrowing.
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>
Martin Vogel