- meta/.pre-commit-config.yaml: move pytest-coverage hook to pre-commit stage
- scripts/pytest_changed_packages.py: single batched pytest -n auto invocation
with one --cov flag per affected python_pkg subpackage, wrapped in
systemd-run --user --scope -p MemoryMax=4G -p MemorySwapMax=0 when available
- python_pkg/steam_backlog_enforcer/tests/conftest.py: new autouse
_no_real_sleep fixture patches time.sleep across game_install /
library_hider / steam_api / _enforce_loop. Removes 3x 15s real sleeps
in TestFinalizeCompletion that fired through _ensure_steam_running
steam_backlog_enforcer test wall time: 33.97s -> 5.61s (xdist, no-cov)
5-package batched run: 732 tests in 1.37s @ 668% CPU
Coverage stays at 100% on all affected packages.
Evidence: docs/superpowers/evidence/pre-commit-pytest-batch-2026-05-14.json
_affected_packages() now ignores subpackages whose tests/ dir doesn't
exist on disk and stops returning None for stray root-level files left
over from rewritten history. Pre-push pytest scope is bounded to the
6 packages with real test suites instead of every diverged path.
Each package subprocess now writes to its own tmpfile via COVERAGE_FILE env.
This prevents sequential subprocess runs from stomping on the .coverage SQLite
DB that the prior run left behind, which caused INTERNALERROR when pytest-cov
tried to combine() parallel data files with incompatible schemas.
Parallel cgroup subprocesses racing on the same .coverage SQLite DB caused
INTERNALERROR (no such table: meta/arc) when combining coverage data files.
Delete all .coverage* files before each package run to prevent corruption.
Each pytest package runs in its own systemd-run scope with:
- MemoryMax=2G per package (nested inside the 4GB parent cgroup)
- MemorySwapMax=0 to prevent zram thrashing (the real cause of freezes)
- gc.collect() between packages to free Python heap
- Set oom_score_adj=1000 in git hooks so OOM killer targets
pre-commit first, never crashing the PC
- Cap Node.js heap to 512MB for eslint/prettier/vitest
- Remove broken systemd-run cgroup wrapper (didn't work)
- cppcheck: process files one-at-a-time, --check-level=normal
- pytest: run packages sequentially in separate subprocesses
- Remove --force from cppcheck (exponential memory on #ifdef combos)
systemd-run --scope -p MemoryMax=3G per pytest subprocess so each
package gets its own memory cap, freed completely before the next.
Also use shutil.which + pathlib per ruff rules.
Each python_pkg subpackage now runs in its own pytest subprocess so
memory is freed between packages. Prevents 4GB+ accumulation when
matplotlib, geopandas, pygame, etc. all load in a single process.
- scripts/optimize_vscode.py: auto-detect hardware (CPU, RAM, GPU, disk)
and apply optimal VS Code settings and Electron GPU flags
- scripts/pytest_changed_packages.py: pre-commit hook that runs pytest
only for python_pkg subpackages with changed files
- .pre-commit-config.yaml: use new selective pytest hook
- scripts/check_python_location.sh: allow scripts/ directory
