Add changelog

CHANGELOG

@@ -0,0 +1,4 @@
+* 0.1.0
+	- Custom scope calculations
+	- Averages, lows and highs
+	- Stats HTTP server

eth_stat_syncer/runnable/tracker.py

@@ -3,12 +3,12 @@ import sys
 import os
 import logging
 import argparse
+import uuid
 
 # external imports
 import confini
-from chainsyncer.backend.memory import MemBackend
+from chainsyncer.store.fs import SyncFsStore
-from chainsyncer.driver.head import HeadSyncer
+from chainsyncer.driver.chain_interface import ChainInterfaceDriver
-from chainsyncer.driver.history import HistorySyncer
 from chainsyncer.filter import SyncFilter
 from chainsyncer.error import NoBlockForYou
 from chainlib.chain import ChainSpec
@@ -33,14 +33,20 @@ from eth_stat_syncer.store import (
 logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
 
-default_config_dir = os.environ.get('CONFINI_DIR', './config')
+script_dir = os.path.realpath(os.path.dirname(__file__))
+exec_dir = os.path.realpath(os.getcwd())
+default_config_dir = os.environ.get('confini_dir', os.path.join(exec_dir, 'config'))
 
 argparser = argparse.ArgumentParser()
 argparser.add_argument('-p', '--provider', dest='p', type=str, help='rpc provider')
 argparser.add_argument('-c', '--config', dest='c',  default=default_config_dir, type=str, help='rpc provider')
 argparser.add_argument('-i', '--chain-spec', dest='i', default='evm:ethereum:1', type=str, help='chain spec')
-argparser.add_argument('--start', type=int, help='number of blocks to sample at startup')
+argparser.add_argument('--moving', action='append', default=[], type=int, help='add moving average')
+argparser.add_argument('--offset', type=int, default=0, help='Start sync on this block')
 argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
+argparser.add_argument('--cache-dir', dest='cache_dir', type=str, help='Directory to store gas cache')
+argparser.add_argument('--state-dir', dest='state_dir', default=exec_dir, type=str, help='Directory to store sync state')
+argparser.add_argument('--session-id', dest='session_id', type=str, help='Use state from specified session id')
 argparser.add_argument('-v', action='store_true', help='be verbose')
 argparser.add_argument('-vv', action='store_true', help='be more verbose')
 args = argparser.parse_args()
@@ -58,13 +64,19 @@ args_override = {
         'RPC_PROVIDER': getattr(args, 'p'),
         }
 config.dict_override(args_override, 'cli flag')
-config.add(args.start, '_START', True)
+config.add(args.offset, '_SYNC_OFFSET', True)
+config.add(os.path.realpath(args.state_dir), '_STATE_DIR', True)
+config.add(args.cache_dir, '_CACHE_DIR', True)
+config.add(args.session_id, '_SESSION_ID', True)
+config.add(args.moving, '_MOVING', True)
 logg.debug('loaded config: {}\n'.format(config))
         
 chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
 
 conn = EthHTTPConnection(args.p)
 
+if config.get('_SESSION_ID') == None:
+    config.add(str(uuid.uuid4()), '_SESSION_ID', True)
 
 class GasPriceFilter(SyncFilter):
     
@@ -73,8 +85,9 @@ class GasPriceFilter(SyncFilter):
         self.gas_aggregator = gas_aggregator
 
 
-    def filter(self, conn, block, tx, db_session):
+    def filter(self, conn, block, tx, db_session=None):
         self.gas_aggregator.put(tx.gas_price)
+        return False
 
 
 class EthChainInterface(ChainInterface):
@@ -87,33 +100,35 @@ class EthChainInterface(ChainInterface):
 
 
 def main():
-    gas_store = RunStore(basedir=config.get('STORE_BASE_DIR'))
+    gas_store = RunStore(basedir=config.get('_CACHE_DIR'))
-    gas_aggregator = GasAggregator(gas_store, 360)
+    cap = 360
+    try:
+        v =  max(config.get('_MOVING'))
+        if v > cap:
+            cap = v
+    except ValueError:
+        pass
+    gas_aggregator = GasAggregator(gas_store,  cap, moving=config.get('_MOVING'))
     gas_filter = GasPriceFilter(chain_spec, gas_aggregator)
 
-    o = block_latest()
+    start_block = 0
-    r = conn.do(o)
+    if config.get('_SYNC_OFFSET') != None:
-    n = int(r, 16)
+        start_block = config.get('_SYNC_OFFSET')
-    start_block =  n
+    else:
-    logg.info('block height at start {}'.format(start_block))
+        o = block_latest()
+        r = conn.do(o)
+        n = int(r, 16)
+        start_block = n
+        logg.info('block height at start {}'.format(start_block))
 
     chain_interface = EthChainInterface()
-    if config.get('_START') != None:
-        offset = start_block - config.get('_START')
-        syncer_backend = MemBackend.custom(chain_spec, start_block)
-        syncer_backend.set(offset, 0)
-        syncer = HistorySyncer(syncer_backend, chain_interface, block_callback=gas_aggregator.block_callback)
-        syncer.add_filter(gas_filter)
-        try:
-            syncer.loop(0.0, conn)
-        except NoBlockForYou:
-            logg.info('history done at {}'.format(syncer.backend.get()))
 
-    syncer_backend = MemBackend(chain_spec, None)
+    sync_store = SyncFsStore(config.get('_STATE_DIR'), session_id=config.get('_SESSION_ID'))
-    syncer_backend.set(start_block + 1, 0)
+    sync_store.register(gas_filter)
-    syncer = HeadSyncer(syncer_backend, chain_interface, block_callback=gas_aggregator.block_callback)
+
-    syncer.add_filter(gas_filter)
+    drv = ChainInterfaceDriver(sync_store, chain_interface, offset=start_block, target=-1, block_callback=gas_aggregator.block_callback)
-    syncer.loop(1.0, conn)
+
+    r = drv.run(conn)
 
 
 if __name__ == '__main__':

eth_stat_syncer/store.py

@@ -40,7 +40,7 @@ class RunStore:
 
 class GasAggregator:
 
-    def __init__(self, store, capacity):
+    def __init__(self, store, capacity, moving=[]):
         self.store = store
         self.avg = 0
         self.count = 0
@@ -57,6 +57,15 @@ class GasAggregator:
         self.local_high = 0
         self.local_low = 0
 
+        self.moving = []
+        for v in moving:
+            if v > capacity:
+                raise ValueError('moving average {} requested but capacity is only {}'.format(v, capacity))
+            self.moving.append(v)
+            logg.info('will calculate moving average {}'.format(v))
+
+        logg.info('buffer capacity is {}'.format(capacity))
+
 
     def put(self, v):
         self.local_aggr += v
@@ -95,25 +104,28 @@ class GasAggregator:
         self.aggr += v
         self.avg = int(self.aggr / self.count)
         logg.info('added {} to aggregate {} new average {} from {} samples'.format(v, self.aggr, self.avg, self.count))
+
         return True
 
 
     def get(self, n=0):
         if n == 0:
-            n = self.capacity
+            n = self.buffer_capacity
+        if n > self.count:
+            n = self.count
         
         aggrs = {
                 'average': 0,
                 'low': 0,
                 'high': 0,
                 }
+        
         for o in [
                 (self.buffer_average, 'average',),
                 (self.buffer_low, 'low',),
                 (self.buffer_high, 'high',),
                 ]:
             cursor = self.buffer_cursor 
-            aggr = 0
             i = 0
             while i < n:
                 v = o[0][cursor]
@@ -122,23 +134,26 @@ class GasAggregator:
                 if cursor < 0:
                     cursor = self.buffer_capacity - 1
                 i += 1
-       
+
-        return {
+        r = {
                 'average': int(aggrs['average']/ n),
                 'high': int(aggrs['high']/ n),
                 'low': int(aggrs['low']/ n),
                 }
+        logg.debug('calc for {}: avg {} high {} low {}'.format(n, r['average'], r['high'], r['low']))
+        return r
 
 
     def block_callback(self, block, tx):
-        logg.info('synced {}'.format(block))
+        tx_count = len(block.txs)
+        logg.info('synced {} with {} txs'.format(block, tx_count))
         if self.process():
-            last = self.get(1)
+            last = self.get(tx_count)
             self.store.put(last, 'block')
-            minute = self.get(6)
-            self.store.put(minute, 'minute')
-            hour = self.get(360)
-            self.store.put(hour, 'hour')
             self.store.put({
                 'average': int(self.aggr / self.count),
                 }, 'all')
+
+            for v in self.moving:
+                r = self.get(v)
+                self.store.put(r, str(v))

requirements.txt

@@ -1,3 +1,3 @@
-chainsyncer~=0.2.0
+chainsyncer~=0.3.0
 chainlib-eth>=0.1.0b1,<=0.1.0
 jsonrpc_std~=0.1.0