initial orm for sqlite state

sins/__init__.py

@@ -1,3 +1,4 @@
 #!/usr/bin/env python3
-from .run import sins, generation
-# from .orm import SeedNode
+from .run import sins
+from .mutation import generation, flip, seed_shell
+from .orm import db_config, ScrapNode

sins/orm.py

@@ -1,19 +1,26 @@
 #!/usr/bin/env python3
 from datetime import datetime
-from sqlalchemy import Blob, Column, ForeignKey, Integer, String, DateTime, create_engine, exists, desc
+from hashlib import sha1
+from pathlib import Path
+from sqlalchemy import LargeBinary, Column, ForeignKey, Integer, String, DateTime, create_engine
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.orm import Session, relationship, backref
 from sqlalchemy.orm.collections import attribute_mapped_collection
 import logging
-from hashlib import sha1
 
 logger = logging.getLogger('sins')
 now = '{0:%Y%m%dT%H%M%S}'.format(datetime.utcnow())
 
 Base = declarative_base()
 
+def db_config(path: Path) -> Session:
+    engine = create_engine(f'sqlite:///{path.resolve()}', native_datetime=True)
+    Base.metadata.create_all(engine)
+    session = Session(engine)
+    return session
 
-class SeedNode(Base):
+class ScrapNode(Base):
+    __tablename__ = 'scrap_node'
     ctime = Column(DateTime, default=datetime.utcnow)
     id = Column(Integer, primary_key=True)
     length = Column(Integer, default=0)
@@ -21,20 +28,29 @@ class SeedNode(Base):
     parent_id = Column(Integer, ForeignKey(id))
     checksum = Column(String)
     stdout = Column(String)
-    image = Column(Blob)
+    image = Column(LargeBinary)
 
     children = relationship(
-        "SeedNode",
+        "ScrapNode",
         cascade="all, delete-orphan",
         backref=backref("parent", remote_side=id),
         collection_class=attribute_mapped_collection('name'))
 
-    def __init__(self, *, child: bytes, parent: SeedNode = None):
-        if parent:
-            self.parent_id = parent.id
-
+    def __init__(self, *, child: bytes, parent_id: int = None):
+        self.parent_id = parent_id
         self.image = child
         self.length = len(child)
+        self.sha1sum
+
+    def __repr__(self):
+        values = {
+            'id': self.id,
+            'checksum': self.checksum,
+            'length': self.length,
+            'parent_id': self.parent_id,
+        }
+
+        return str(values)
 
     @property
     def sha1sum(self):

sins/run.py

@@ -4,9 +4,12 @@ from datetime import datetime
 from multiprocessing import Process, Queue
 from pathlib import Path
 from queue import Empty
+from sqlalchemy import exists, desc
+from tempfile import TemporaryDirectory
 import logging
 
 from .mutation import generation, flip, seed_shell
+from .orm import db_config, ScrapNode
 
 
 def sins():
@@ -53,19 +56,47 @@ def sins():
         with seed.open('rb') as seed_file:
             seed_data = seed_file.read()
 
-    logger.info(f'seed:\n{seed_data}')
+    seed = ScrapNode(child=seed_data)
+
+    logger.info(f'seed:\n{seed}')
+
+    if args.output:
+        db_path = Path(f'{args.output}/sins.sqlite')
+    else:
+        temp_dir = TemporaryDirectory()
+        db_path = Path(f'{temp_dir.name}/sins.sqlite')
+
+    session = db_config(db_path)
+    logger.info(f'db_path: {db_path}')
+
+    if args.seed:
+        exists = session.query(ScrapNode).filter(ScrapNode.checksum == seed.checksum)
+
+        if exists:
+            seed = exists[0]
+
+        else:
+            session.add(seed)
+            session.commit()
+    else:
+        recent = session.query(ScrapNode).order_by(desc('ctime')).first()
+
+        if recent:
+            seed = recent
+
+    parent = seed
 
     queue = Queue()
 
     while True:
         lineage = 0
-        seed_flipped = flip(seed_data)
+        scrap = flip(parent.image)
 
         while lineage < args.lineage:
             logger.info(f'lineage: {lineage}')
             result = None
 
-            proc = Process(target=generation, args=(queue, seed_flipped))
+            proc = Process(target=generation, args=(queue, scrap))
             proc.start()
             try:
                 result = queue.get(timeout=1)
@@ -77,7 +108,10 @@ def sins():
                 lineage += 1
                 continue
 
-            logger.info(f'scrap:\n{seed_flipped}')
-            logger.info(f'result: {result}')
+            parent = ScrapNode(child=scrap, parent_id=parent.id)
+            parent.length = result
+            session.add(seed)
+            session.commit()
+            logger.info(f'scrap:\n{parent}')
             lineage = 0
-            seed_flipped = flip(seed_flipped)
+            scrap = flip(parent.image)