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#!/usr/bin/env python3
# Lazy imports: traceback and threading are deferred to avoid paying their
# import cost (~4ms and ~2.5ms respectively) on early-exit paths (CASE 0-4).
# They are imported just-in-time in the code that actually needs them.
from __future__ import annotations
import _thread
import json
import os
import sys
import time
import warnings
from enum import Enum, auto
from pathlib import Path
# Ultra-early-exit cache helpers: imported at module level to avoid heavy
# ci.* imports during startup. See ci/early_exit_cache.py for details.
from ci.early_exit_cache import (
argv_ultra_early_exit,
check_single_test_cached,
pytest_addopts_active,
)
# Record start time as early as possible, before any heavy imports.
# This gives the most accurate timing for ultra-early exit messages.
_START_TIME = time.time()
# Change to script directory for relative path resolution in early exit.
# Ultra-early exit uses relative paths (.cache/, .build/, src/, etc.)
# and requires the working directory to be the project root.
os.chdir(Path(__file__).parent)
# When stdout is piped (e.g., `bash test --cpp 2>&1 | tail -15`), Python
# defaults to block buffering — small writes may not surface until program
# exit, making background test runs appear to "hang silently" even when
# they're producing output. Force line buffering so `\n`-terminated output
# flushes immediately to whatever pipe is reading us.
#
# This must run before any imports that touch stdout (e.g., test runners,
# rich console) so the buffering policy is set on first write.
if not sys.stdout.isatty():
# `reconfigure` is on io.TextIOWrapper but not the abstract TextIO type
# that sys.stdout is typed as. getattr+callable keeps this type-safe across
# mypy/pyright/ty without needing per-checker `# ignore` comments.
_reconfigure_stdout = getattr(sys.stdout, "reconfigure", None)
if callable(_reconfigure_stdout):
try:
_reconfigure_stdout(line_buffering=True)
except KeyboardInterrupt:
# Pre-imports startup path — handle_keyboard_interrupt() isn't
# available yet (it's imported below). Use the lower-level
# _thread.interrupt_main() (stdlib, already imported above) to
# satisfy KBI002 and notify the main thread, then re-raise.
_thread.interrupt_main()
raise
except ValueError:
pass
if not sys.stderr.isatty():
_reconfigure_stderr = getattr(sys.stderr, "reconfigure", None)
if callable(_reconfigure_stderr):
try:
_reconfigure_stderr(line_buffering=True)
except KeyboardInterrupt:
# See note above on the stdout block — helper not yet imported.
_thread.interrupt_main()
raise
except ValueError:
pass
# Ultra-early exit fires BEFORE heavy ci.util.* imports (~318ms savings on cached runs).
# All ultra-early-exit logic is in ci.early_exit_cache (imported above).
# typeguard (177ms), psutil (28ms), asyncio (50ms), unittest.mock (65ms) are skipped
# entirely when the test result is found in cache.
argv_ultra_early_exit(_START_TIME)
# Configure UTF-8 console now that we know we're on the non-early-exit path.
# This was previously in ci/__init__.py but was deferred to avoid ~20ms cost
# on ultra-early-exit paths that only need ci.early_exit_cache (stdlib-only).
import ci # noqa: PLC0415 - already loaded; just grabbing the module reference
ci._ensure_init()
# --- Heavy imports: only reached if no early exit fired above ---
from ci.util.global_interrupt_handler import (
handle_keyboard_interrupt,
signal_interrupt,
wait_for_cleanup,
)
from ci.util.test_args import parse_args
from ci.util.test_env import (
dump_thread_stacks,
setup_environment,
setup_force_exit,
)
from ci.util.test_exceptions import TestExecutionFailedException, TestTimeoutException
from ci.util.test_runner import _TOP_LEVEL_TEST_TIMEOUT, failed_fingerprint_scopes
from ci.util.test_types import (
process_test_flags,
)
from ci.util.timestamp_print import ts_print
class RebuildMode(Enum):
"""Defines the rebuild/cache behavior for test execution."""
CACHED = auto() # Use fingerprint cache normally
NO_CACHE = auto() # Disable fingerprint cache (--no-fingerprint)
FULL_REBUILD = auto() # Force full rebuild (--force, --clean)
import threading # noqa: PLC0415 - lazy import (not at top level to speed up early-exit paths)
_CANCEL_WATCHDOG = threading.Event()
_TIMEOUT_EVERYTHING = _TOP_LEVEL_TEST_TIMEOUT
_GDB_CRASH_DIR = Path(".gdb_crash")
_GDB_CRASH_SEEN = _GDB_CRASH_DIR / ".seen"
def _check_crash_dumps() -> None:
"""Check for crash dump files and warn the user."""
if not _GDB_CRASH_DIR.exists():
return
dumps = sorted(_GDB_CRASH_DIR.glob("crash_*.txt"))
if not dumps:
return
# Build a content fingerprint from file names + sizes + mtimes
import hashlib
h = hashlib.md5()
for d in dumps:
stat = d.stat()
h.update(f"{d.name}:{stat.st_size}:{stat.st_mtime_ns}".encode())
current_hash = h.hexdigest()
# Check if we already warned about these exact dumps
seen_hash = ""
if _GDB_CRASH_SEEN.exists():
seen_hash = _GDB_CRASH_SEEN.read_text().strip()
RED = "\033[91m"
YELLOW = "\033[93m"
RESET = "\033[0m"
BOLD = "\033[1m"
if current_hash == seen_hash:
# Already seen — muted one-liner
print(
f"{YELLOW}(crash dumps unchanged in .gdb_crash/ — {len(dumps)} file(s), run `bash lint` to clean){RESET}"
)
else:
# New or changed dumps — loud red warning
print(f"\n{RED}{BOLD}{'=' * 60}")
print(f" CRASH DUMP(S) DETECTED — {len(dumps)} file(s) in .gdb_crash/")
print(f"{'=' * 60}{RESET}")
for d in dumps:
size = d.stat().st_size
print(f" {RED}{d.name}{RESET} ({size} bytes)")
print(f"{RED}{BOLD}Inspect with: cat .gdb_crash/<file>{RESET}")
print(f"{RED}{BOLD}Clean with: bash lint{RESET}")
print(f"{RED}{BOLD}{'=' * 60}{RESET}\n")
# Stamp so subsequent runs show the muted warning
_GDB_CRASH_SEEN.write_text(current_hash)
# Platform to emulator backend mapping for --run command (lazy-loaded).
# Loading reads a JSON file from disk (~18ms). Deferred to first access since
# the mapping is only needed when --run is used.
_RUN_PLATFORM_BACKENDS: dict[str, list[str]] | None = None
def _get_run_platform_backends() -> dict[str, list[str]]:
global _RUN_PLATFORM_BACKENDS
if _RUN_PLATFORM_BACKENDS is None:
backend_path = Path(__file__).parent / "ci" / "runners" / "backends.json"
with open(backend_path) as f:
_RUN_PLATFORM_BACKENDS = json.load(f)
return _RUN_PLATFORM_BACKENDS # type: ignore[return-value]
if os.environ.get("GITHUB_ACTIONS"):
_TIMEOUT_EVERYTHING = max(_TIMEOUT_EVERYTHING, 1200)
ts_print(
f"GitHub Actions environment detected - using extended timeout: {_TIMEOUT_EVERYTHING} seconds"
)
# Deadman timer fires this many seconds after the primary watchdog if the
# process is still alive — bypasses any blocked diagnostics in the primary
# watchdog and unconditionally calls os._exit().
_DEADMAN_GRACE_S = 60
def _release_held_build_locks() -> None:
"""Best-effort: release any libfastled_build locks held by this PID.
Called from the watchdog before force-exit so subsequent runs don't
block on a stale lock from this hung process. Intentionally suppresses
KeyboardInterrupt: the watchdog's caller (deadman_timer / watchdog_timer)
is about to call os._exit(), so cleanup must run to completion regardless
of signal state. Re-raising would short-circuit the force-exit.
"""
try:
from ci.util.lock_database import get_lock_database # noqa: PLC0415
db = get_lock_database()
my_pid = os.getpid()
for lock in db.list_all_locks():
if lock["owner_pid"] == my_pid:
try:
db.release(lock["lock_name"], my_pid)
except KeyboardInterrupt as ki:
handle_keyboard_interrupt(ki)
except Exception:
pass
except KeyboardInterrupt as ki:
handle_keyboard_interrupt(ki)
except Exception:
pass
def make_watch_dog_thread(
seconds: int,
) -> threading.Thread: # 60 seconds default timeout
def deadman_timer() -> None:
# Unconditional second-tier kill: if the primary watchdog gets stuck
# in dump_thread_stacks() / psutil queries / blocked I/O, this fires
# _DEADMAN_GRACE_S later and exits without running any diagnostics.
time.sleep(seconds + _DEADMAN_GRACE_S)
if _CANCEL_WATCHDOG.is_set():
return
try:
_release_held_build_locks()
except KeyboardInterrupt as ki:
# Suppress: the unconditional os._exit() below is the entire point
# of the deadman timer. Re-raising would defeat it.
handle_keyboard_interrupt(ki)
except Exception:
pass
os._exit(3) # Exit code 3 = deadman fired (primary watchdog also stuck)
def watchdog_timer() -> None:
time.sleep(seconds)
if _CANCEL_WATCHDOG.is_set():
return
warnings.warn(f"Watchdog timer expired after {seconds} seconds.")
# Release any build locks first, before potentially-blocking diagnostics.
# If diagnostics hang, the deadman timer will still force-exit, but the
# lock will already be released so subsequent runs aren't blocked.
_release_held_build_locks()
dump_thread_stacks()
ts_print(f"Watchdog timer expired after {seconds} seconds - forcing exit")
# Dump outstanding running processes (if any)
try:
from ci.util.running_process_manager import (
RunningProcessManagerSingleton, # noqa: PLC0415
)
RunningProcessManagerSingleton.dump_active()
except KeyboardInterrupt as ki:
handle_keyboard_interrupt(ki)
raise
except Exception as e:
ts_print(f"Failed to dump active processes: {e}")
import traceback # noqa: PLC0415 - lazy: only imported when watchdog fires
traceback.print_stack()
time.sleep(0.5)
os._exit(2) # Exit with error code 2 to indicate timeout (SIGTERM)
thr = threading.Thread(target=watchdog_timer, daemon=True, name="WatchdogTimer")
thr.start()
# Second-tier deadman: fires at seconds + _DEADMAN_GRACE_S regardless of
# whether the primary watchdog blocks.
deadman = threading.Thread(
target=deadman_timer, daemon=True, name="WatchdogDeadman"
)
deadman.start()
return thr
def main() -> None:
try:
# Use module-level start time (recorded before heavy imports for accuracy).
# _argv_ultra_early_exit() already fired at module level; if we reached main(),
# the early exit did not apply and we proceed normally.
start_time = _START_TIME
# Parse and process arguments
args = parse_args()
# Warn about any leftover crash dumps from previous runs
_check_crash_dumps()
if args.debug_test:
from ci.util.global_interrupt_handler import set_debug_test
set_debug_test(True)
# Handle --list-tests flag: list available tests and exit
if args.list_tests:
from ci.meson.test_discovery import list_all_tests
list_all_tests(filter_pattern=args.test, filter_type=None)
sys.exit(0)
# Handle --setup-only flag: run Meson setup to generate compile_commands.json, then exit.
# This is used by the install script to avoid a full build when only IntelliSense
# configuration is needed.
if args.setup_only:
from ci.meson.build_config import setup_meson_build
build_mode = (
args.build_mode
if args.build_mode
else ("debug" if args.debug else "quick")
)
source_dir = Path(".")
build_dir = Path(".build") / f"meson-{build_mode}"
ts_print(f"Running Meson setup only ({build_mode} mode)...")
ok = setup_meson_build(
source_dir,
build_dir,
reconfigure=False,
debug=(build_mode == "debug"),
build_mode=build_mode,
verbose=args.verbose,
enable_examples=True,
enable_unit_tests=True,
)
if ok:
ts_print("Meson setup complete.")
else:
ts_print("Meson setup failed.", file=sys.stderr)
sys.exit(1)
sys.exit(0)
# ULTRA-EARLY EXIT: Check if the requested test result is already cached.
# Uses check_single_test_cached() from ci.early_exit_cache for the full
# pipeline: name normalization → candidate matching → ninja skip → result cache.
if (
args.test
and not getattr(args, "clean", False)
and not getattr(args, "check", False)
and not getattr(args, "no_fingerprint", False)
):
try:
_build_mode_early = (
args.build_mode
if args.build_mode
else ("debug" if args.debug else "quick")
)
_build_dir_early = Path(".build") / f"meson-{_build_mode_early}"
if check_single_test_cached(args.test, _build_dir_early):
print("✅ All tests passed (1/1 cached)")
_CANCEL_WATCHDOG.set()
print(f"Total: {time.time() - start_time:.2f}s")
sys.exit(0)
except KeyboardInterrupt:
_thread.interrupt_main()
except Exception:
pass # If ultra-early check fails, continue normally
# Handle --no-unity flag
if args.no_unity:
ts_print("(--no-unity is assumed by default now)")
# Default to parallel execution for better performance
# Users can disable parallel compilation by setting NO_PARALLEL=1 or using --no-parallel
if os.environ.get("NO_PARALLEL", "0") == "1":
args.no_parallel = True
args = process_test_flags(args)
timeout = _TIMEOUT_EVERYTHING
# Adjust watchdog timeout based on test configuration
# Sequential builds with debug mode (sanitizers) are very slow, especially on Windows
if args.debug and args.no_parallel:
# 45 minutes for sequential debug builds (sanitizers are slow)
timeout = 2700
ts_print(
f"Adjusted watchdog timeout for sequential debug builds: {timeout} seconds"
)
# Sequential examples compilation can take up to 30 minutes
elif args.examples is not None and args.no_parallel:
# 35 minutes for sequential examples compilation
timeout = 2100
ts_print(
f"Adjusted watchdog timeout for sequential examples compilation: {timeout} seconds"
)
# Set up watchdog timer
_ = make_watch_dog_thread(seconds=timeout)
# Handle --no-interactive flag
if args.no_interactive:
os.environ["FASTLED_CI_NO_INTERACTIVE"] = "true"
os.environ["GITHUB_ACTIONS"] = (
"true" # This ensures all child processes also run in non-interactive mode
)
# Handle --interactive flag
if args.interactive:
os.environ.pop("FASTLED_CI_NO_INTERACTIVE", None)
os.environ.pop("GITHUB_ACTIONS", None)
# Set up remaining environment based on arguments
setup_environment(args)
# Handle stack trace control
enable_stack_trace = not args.no_stack_trace
# Stack trace messages are only useful when debugging timeouts
# Don't clutter normal output with this implementation detail
# Validate conflicting arguments
if args.no_interactive and args.interactive:
ts_print(
"Error: --interactive and --no-interactive cannot be used together",
file=sys.stderr,
)
sys.exit(1)
# Set up fingerprint caching
# Lazy import: FingerprintManager pulls in ci.util.test_types -> typeguard (~245ms).
# We defer this until after all ultra-early exits so cached runs skip it entirely.
from ci.util.fingerprint import FingerprintManager
cache_dir = Path(".cache")
# Determine build mode (default to "quick")
# IMPORTANT: If --debug is set, use "debug" mode even if --build-mode is not specified
# This ensures fingerprint caching correctly separates debug builds from quick builds
build_mode = (
args.build_mode if args.build_mode else ("debug" if args.debug else "quick")
)
fingerprint_manager = FingerprintManager(cache_dir, build_mode=build_mode)
pytest_options_active = pytest_addopts_active()
# Calculate fingerprints
# OPTIMIZATION: When --no-fingerprint is set, skip computing fingerprints entirely.
# Fingerprint computation reads all source files and hashes them (~2-3s on typical
# machines). When --no-fingerprint is used, these values are ignored anyway because
# rebuild_mode forces all change flags to True. Skipping saves ~2-3s per invocation.
if args.no_fingerprint:
cpp_test_change = True
examples_change = True
python_test_change = True
wasm_change = True
else:
# OPTIMIZATION: Run fingerprint checks in parallel threads.
# Each check independently scans directories and hashes files (~20-30ms each).
# Running all 5 concurrently reduces total from ~110ms to ~30ms.
_fp_results: dict[str, bool] = {}
def _fp_check(name: str, fn) -> None:
_fp_results[name] = fn()
_fp_threads = [
threading.Thread(
target=_fp_check,
args=("cpp", lambda: fingerprint_manager.check_cpp(args)),
daemon=True,
),
threading.Thread(
target=_fp_check,
args=("examples", lambda: fingerprint_manager.check_examples(args)),
daemon=True,
),
threading.Thread(
target=_fp_check,
args=("python", fingerprint_manager.check_python),
daemon=True,
),
threading.Thread(
target=_fp_check,
args=("wasm", fingerprint_manager.check_wasm),
daemon=True,
),
]
for _t in _fp_threads:
_t.start()
for _t in _fp_threads:
_t.join()
cpp_test_change = _fp_results["cpp"]
examples_change = _fp_results["examples"]
python_test_change = _fp_results["python"]
wasm_change = _fp_results["wasm"]
# Handle --run flag (unified emulation interface)
if args.run is not None:
if len(args.run) < 1:
ts_print("Error: --run requires a platform/board (e.g., esp32s3, uno)")
sys.exit(1)
platform = args.run[0].lower()
# Look up backend from mapping table
backend = None
for b, platforms in _get_run_platform_backends().items():
if platform in platforms:
backend = b
break
if backend is None:
# Platform not found - show error with supported platforms
ts_print(f"Error: Unknown platform '{platform}'")
ts_print()
ts_print("Supported platforms:")
# Group platforms by backend
for b, platforms in _get_run_platform_backends().items():
ts_print(f" {b.upper()}: {', '.join(sorted(platforms))}")
sys.exit(1)
# Route to appropriate backend
if backend == "avr8js":
from ci.runners.avr8js_runner import run_avr8js_tests
ts_print(f"=== avr8js Testing ({platform}) ===")
# Run avr8js tests
run_avr8js_tests(args)
return
else:
# ESP32 QEMU goes through fbuild's native runner, mirroring
# .github/workflows/qemu_template.yml.
ts_print(
f"Error: No local runner for backend '{backend}' (platform '{platform}')."
)
ts_print(
"For ESP32 QEMU, stage the example and run fbuild test-emu "
"(see qemu_template.yml)."
)
sys.exit(1)
# Track test success/failure for fingerprint status
tests_passed = False
completed_scopes: set[str] = set()
failed_scopes: set[str] = set()
try:
# Run tests using the test runner with sequential example compilation
# Check if we need to use sequential execution to avoid resource conflicts
if not args.unit and not args.examples and not args.py and args.full:
# Full test mode - use RunningProcessGroup for dependency-based execution
from ci.util.running_process_group import (
ExecutionMode,
ProcessExecutionConfig,
RunningProcessGroup,
)
# Discover test counts in background to avoid blocking process
# creation (~1-10s for pytest --collect-only).
from ci.util.test_runner import (
TestCounts,
create_examples_test_process,
create_python_test_process,
get_test_counts,
)
_counts_result: list[TestCounts] = []
def _discover_counts() -> None:
try:
_counts_result.append(get_test_counts())
except KeyboardInterrupt as ki:
handle_keyboard_interrupt(ki)
except Exception:
pass
_discovery_thread = threading.Thread(
target=_discover_counts, daemon=True, name="TestDiscovery"
)
_discovery_thread.start()
# Create processes while discovery runs in background
python_process = create_python_test_process(
enable_stack_trace=False, run_slow=True
)
examples_process = create_examples_test_process(
args, not args.no_stack_trace
)
# Now wait for discovery and display counts
_discovery_thread.join(timeout=15)
if _counts_result:
counts = _counts_result[0]
total_tests = (
counts.unit_test_count
+ counts.example_count
+ counts.python_test_count
)
ts_print(
f"Found {total_tests} tests: {counts.unit_test_count} unit tests, {counts.example_count} examples, {counts.python_test_count} Python tests"
)
# Configure parallel execution — Python tests and examples are
# independent and can run concurrently for faster wall-clock time.
config = ProcessExecutionConfig(
execution_mode=ExecutionMode.PARALLEL,
verbose=args.verbose,
timeout_seconds=2100, # 35 minutes for examples compilation
live_updates=True, # Enable real-time display
display_type="auto", # Auto-detect best display format
)
# Create process group — no dependency between Python tests and examples
group = RunningProcessGroup(config=config, name="FullTestParallel")
group.add_process(python_process)
group.add_process(examples_process)
try:
# Start real-time display for full test mode
display_thread = None
if not args.verbose and config.live_updates:
try:
from ci.util.process_status_display import (
display_process_status,
)
display_thread = display_process_status(
group,
display_type=config.display_type,
update_interval=config.update_interval,
)
except ImportError:
pass # Fall back to normal execution
timings = group.run()
completed_scopes.update(("python_test", "examples"))
# Stop display thread if it was started
if display_thread:
time.sleep(0.5)
ts_print("Parallel test execution completed successfully")
# Print timing summary
if timings:
ts_print("\nExecution Summary:")
for timing in timings:
ts_print(f" {timing.name}: {timing.duration:.2f}s")
except KeyboardInterrupt:
_thread.interrupt_main()
raise
except Exception as e:
if isinstance(
e, (TestExecutionFailedException, TestTimeoutException)
):
failed_scopes.update(failed_fingerprint_scopes(e.failures))
else:
failed_scopes.update(("python_test", "examples"))
ts_print(f"Parallel test execution failed: {e}")
sys.exit(1)
else:
# Use normal test runner for other cases
# Determine rebuild mode based on flags (single source of truth)
if args.no_fingerprint:
rebuild_mode = RebuildMode.NO_CACHE
elif args.force or args.clean:
rebuild_mode = RebuildMode.FULL_REBUILD
else:
rebuild_mode = RebuildMode.CACHED
# Force change flags=True when running a specific test or when cache is disabled
force_cpp_test_change = (
cpp_test_change
or (args.test is not None)
or rebuild_mode != RebuildMode.CACHED
)
# Note: args.examples == [] means "all examples" (e.g., default mode or --examples flag)
# args.examples with specific items (e.g., ['Blink']) means specific examples requested
# Only force when specific examples are requested, not for "run all examples"
force_examples_change = (
examples_change
or (args.examples is not None and len(args.examples) > 0)
or args.example_group is not None
or rebuild_mode != RebuildMode.CACHED
)
force_python_test_change = (
python_test_change
or (args.test is not None)
or pytest_options_active
or rebuild_mode != RebuildMode.CACHED
)
force_wasm_change = wasm_change or rebuild_mode != RebuildMode.CACHED
# Only show cache status when it's enabled (the notable case)
# When disabled (--no-fingerprint), this is the default so no message needed
# Lazy import: test_runner loads rich.console (~106ms) and other heavy
# modules. By importing here (not at top level), we skip those imports
# entirely on the ultra-early-exit path (cached test result).
from ci.util.test_runner import runner as test_runner
completed_scopes = test_runner(
args,
force_cpp_test_change,
force_examples_change,
force_python_test_change,
force_wasm_change,
fingerprint_manager=fingerprint_manager,
failed_scopes=failed_scopes,
)
# If we got here, tests passed
tests_passed = True
except SystemExit as e:
# Test runner calls sys.exit() on failure
if e.code != 0:
tests_passed = False
raise
finally:
# Only full, successfully completed scopes may update their cache.
# Note: args.examples == [] means "all examples" (e.g., --cpp mode), which is OK
# args.examples with specific items (e.g., ['Blink']) means specific examples only
running_specific_examples = (
args.examples is not None and len(args.examples) > 0
) or args.example_group is not None
running_all_tests = (
args.test is None
and not running_specific_examples
and not args.no_fingerprint
and not args.check
and not pytest_options_active
)
if running_all_tests:
if tests_passed:
for scope in completed_scopes:
fingerprint_manager.save_success(scope)
else:
for scope in failed_scopes:
fingerprint_manager.mark_failure(scope)
# Set up force exit daemon and exit
_ = setup_force_exit()
_CANCEL_WATCHDOG.set()
# Print total execution time
elapsed_time = time.time() - start_time
print(f"Total: {elapsed_time:.2f}s")
sys.exit(0)
except KeyboardInterrupt as ki:
# Only notify main thread if we're in a worker thread
if threading.current_thread() != threading.main_thread():
from ci.util.global_interrupt_handler import (
handle_keyboard_interrupt,
)
handle_keyboard_interrupt(ki)
signal_interrupt()
wait_for_cleanup()
sys.exit(130)
if __name__ == "__main__":
try:
main()
except KeyboardInterrupt as ki: # noqa: KBI002
# Top-level safety net: main() already handles cleanup.
# Print the full exception chain then exit without propagating
# KeyboardInterrupt to parent processes (e.g. shell callers).
import traceback # noqa: PLC0415
traceback.print_exception(ki)
sys.exit(1)
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