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from __future__ import annotations
import logging
import os
import time
from concurrent.futures import ThreadPoolExecutor, as_completed, Future
from typing import Any, Dict, Generator, List, Optional
from core.analysis_registry import AnalysisRegistry, AnalysisNode
from core.incremental_build_planner import BuildTask
from models.build_event import (
BuildEvent,
TaskQueued,
TaskStarted,
TaskCompleted,
TaskSkipped,
TaskFailed,
StageCompleted,
CacheHitEvent,
LoadEvent,
CacheMissEvent,
ProgressEvent,
SaveEvent,
BuildTimeEvent,
ErrorEvent,
)
logger = logging.getLogger(__name__)
def execute_single_task(
task: BuildTask,
node: AnalysisNode,
repo_name: str,
repo_path: Optional[str],
files: Optional[List[Dict[str, str]]],
context: Any,
force_rebuild: bool,
build_id: str,
service_resolver: Optional[Any] = None,
snapshot_store: Optional[Any] = None,
) -> List[BuildEvent]:
"""Execute a single build task and capture all events generated."""
from core.logging_context import build_id_var, repository_var, analysis_var
token_build = build_id_var.set(build_id)
token_repo = repository_var.set(repo_name)
token_analysis = analysis_var.set(node.name)
events: List[BuildEvent] = []
try:
if task.mode == "SKIP":
events.append(TaskSkipped(repo_name, node.name))
events.append(CacheHitEvent(repo_name, node.name))
events.append(LoadEvent(repo_name, node.name))
events.append(BuildTimeEvent(repo_name, node.name, 0.0))
return events
events.append(TaskStarted(repo_name, node.name))
events.append(CacheMissEvent(repo_name, node.name))
start_time = time.time()
try:
# Resolve service singleton via resolver or direct instantiation
service_instance = None
if service_resolver is not None:
service_instance = service_resolver(node.service_class)
elif node.service_class is not None:
try:
service_instance = node.service_class()
except Exception:
service_instance = None
if service_instance is not None:
has_new_api = hasattr(service_instance, "build_full")
if node.name == "Symbol Index":
if has_new_api:
if task.mode == "FULL":
service_instance.build_full(
repo_name, repo_path=repo_path, files=files
)
else:
service_instance.build_partial(
repo_name,
task.changed_files,
repo_path=repo_path,
files=files,
)
else:
service_instance.build(
repo_name, repo_path=repo_path, files=files
)
elif node.name == "Dependency Graph":
if has_new_api:
if task.mode == "FULL":
service_instance.build_full(
repo_name, repo_path=repo_path, files=files
)
else:
service_instance.build_partial(
repo_name,
task.changed_files,
repo_path=repo_path,
files=files,
)
else:
service_instance.build(
repo_name,
repo_path=repo_path,
files=files,
force_rebuild=force_rebuild,
)
elif node.name == "Call Graph":
if has_new_api:
if task.mode == "FULL":
gen = service_instance.build_full(
repo_name, context=context, files=files
)
else:
gen = service_instance.build_partial(
repo_name,
task.changed_files,
context=context,
files=files,
)
for progress in gen:
events.append(
ProgressEvent(
repo_name, node.name, progress.get("message", "")
)
)
else:
service_instance.build(repo_name, context=context)
elif node.name == "Git History":
if has_new_api:
if task.mode == "FULL":
gen = service_instance.build_full(
repo_name, since_days=30, context=context
)
else:
gen = service_instance.build_partial(
repo_name,
task.changed_files,
since_days=30,
context=context,
)
else:
gen = service_instance.build(repo_name, since_days=30)
for progress in gen:
events.append(
ProgressEvent(
repo_name, node.name, progress.get("message", "")
)
)
elif node.name == "API Surface":
if has_new_api:
if task.mode == "FULL":
gen = service_instance.build_full(
repo_name, context=context, files=files
)
else:
gen = service_instance.build_partial(
repo_name,
task.changed_files,
context=context,
files=files,
)
for progress in gen:
pass
else:
service_instance.build(repo_name, context=context)
else:
# Custom/mock service execution fallback
if has_new_api:
if task.mode == "FULL":
service_instance.build_full(
repo_name, repo_path=repo_path, files=files
)
else:
service_instance.build_partial(
repo_name,
task.changed_files,
repo_path=repo_path,
files=files,
)
elif hasattr(service_instance, "build"):
service_instance.build(
repo_name, repo_path=repo_path, files=files
)
else:
# Placeholder for future analyses (service_instance is None)
if snapshot_store is not None:
store = snapshot_store
else:
from storage.snapshot_store import JsonSnapshotStore
store = JsonSnapshotStore()
key = node.outputs[0] if node.outputs else node.name.lower()
store.save(
repo_name,
key,
{"status": "placeholder", "_schema_version": node.schema_version},
)
events.append(SaveEvent(repo_name, node.name))
duration = (time.time() - start_time) * 1000
events.append(TaskCompleted(repo_name, node.name, duration))
events.append(BuildTimeEvent(repo_name, node.name, duration))
from core.metrics import metrics_registry
metrics_registry.record_task_duration(
repo_name, node.name, duration / 1000.0
)
except Exception as exc:
duration = (time.time() - start_time) * 1000
events.append(TaskFailed(repo_name, node.name, str(exc)))
events.append(ErrorEvent(repo_name, str(exc), node=node.name))
from core.metrics import metrics_registry
metrics_registry.record_task_duration(
repo_name, node.name, duration / 1000.0
)
raise
finally:
build_id_var.reset(token_build)
repository_var.reset(token_repo)
analysis_var.reset(token_analysis)
return events
class ParallelExecutionRunner:
"""Orchestrates stage-based parallel build execution using ThreadPoolExecutor."""
def __init__(
self,
repo_name: str,
repo_path: Optional[str],
files: Optional[List[Dict[str, str]]],
context: Any,
registry: AnalysisRegistry,
max_workers: Optional[int] = None,
force_rebuild: bool = False,
build_id: Optional[str] = None,
service_resolver: Optional[Any] = None,
snapshot_store: Optional[Any] = None,
) -> None:
import uuid
self.repo_name = repo_name
self.repo_path = repo_path
self.files = files
self.context = context
self.registry = registry
self.force_rebuild = force_rebuild
self.build_id = build_id or str(uuid.uuid4())
self.service_resolver = service_resolver
self.snapshot_store = snapshot_store
# Default workers count: max(1, CPU cores - 1)
if max_workers is None:
max_workers = max(1, (os.cpu_count() or 4) - 1)
self.max_workers = max_workers
def run_stages(
self, stages: List[List[BuildTask]]
) -> Generator[BuildEvent, None, None]:
"""Runs the planned stages sequentially, executing tasks within each stage in parallel."""
# Yield queued events for all tasks first
for stage in stages:
for task in stage:
yield TaskQueued(self.repo_name, task.analysis)
with ThreadPoolExecutor(max_workers=self.max_workers) as executor:
for stage_idx, stage in enumerate(stages):
tasks_in_stage = [task.analysis for task in stage]
logger.info(
"Running stage %d containing tasks: %s",
stage_idx,
tasks_in_stage,
)
# Map task name to AnalysisNode
node_map = {node.name: node for node in self.registry.get_build_order()}
futures: Dict[Future[List[BuildEvent]], BuildTask] = {}
for task in stage:
node = node_map.get(task.analysis)
if node is None:
continue
future = executor.submit(
execute_single_task,
task,
node,
self.repo_name,
self.repo_path,
self.files,
self.context,
self.force_rebuild,
self.build_id,
self.service_resolver,
self.snapshot_store,
)
futures[future] = task
# Monitor futures as they complete
failed = False
exception_to_raise = None
completed_task_events: Dict[str, List[BuildEvent]] = {}
try:
for future in as_completed(futures):
task = futures[future]
try:
# future.result() propagates exceptions raised by workers
task_events = future.result()
completed_task_events[task.analysis] = task_events
except Exception as exc:
failed = True
exception_to_raise = exc
logger.error(
"Task %s failed: %s. Cancelling remaining tasks in stage %d.",
task.analysis,
exc,
stage_idx,
)
# Cancel all other pending futures in this stage
for pending_future in futures:
if pending_future != future:
pending_future.cancel()
break
except Exception as exc:
failed = True
exception_to_raise = exc
if failed:
if exception_to_raise:
raise exception_to_raise
else:
raise RuntimeError(
f"Stage {stage_idx} failed due to worker error."
)
# Stage completed successfully: yield events alphabetically
stage_tasks_sorted = sorted(stage, key=lambda t: t.analysis)
for task in stage_tasks_sorted:
task_events = completed_task_events.get(task.analysis, [])
for event in task_events:
yield event
# Yield StageCompleted event
yield StageCompleted(self.repo_name, stage_idx, tasks_in_stage)
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