Add systemd setup

chaind_eth/runnable/server.py

@@ -50,12 +50,12 @@ args_override = {
             'SESSION_CHAIN_SPEC': getattr(args, 'i'),
             'RPC_ENDPOINT': getattr(args, 'p'),
             'SESSION_DATA_DIR': getattr(args, 'data_dir'),
+            'SESSION_ID': getattr(args, 'session_id'),
         }
 config.dict_override(args_override, 'cli args')
-config.add(getattr(args, 'session_id'), '_SESSION_ID', True)
 
 if not config.get('SESSION_SOCKET_PATH'):
-    socket_path = os.path.join(config.get('SESSION_RUNTIME_DIR'), config.get('_SESSION_ID'), 'chainqueue.sock')
+    socket_path = os.path.join(config.get('SESSION_RUNTIME_DIR'), config.get('SESSION_ID'), 'chaind.sock')
     config.add(socket_path, 'SESSION_SOCKET_PATH', True)
 
 if config.get('DATABASE_ENGINE') == 'sqlite':
@@ -168,8 +168,11 @@ def main():
 
         logg.debug('recv {} bytes'.format(len(data)))
         r = adapter.add(chain_spec, data)
-        r = srvs.send(r.to_bytes(4, byteorder='big'))
-        logg.debug('{} bytes sent'.format(r))
+        try:
+            r = srvs.send(r.to_bytes(4, byteorder='big'))
+            logg.debug('{} bytes sent'.format(r))
+        except BrokenPipeError:
+            logg.debug('they just hung up. how rude.')
         srvs.close()
 
     ctrl.shutdown(None, None)

chaind_eth/runnable/syncer.py

@@ -0,0 +1,141 @@
+# standard imports
+import sys
+import time
+import socket
+import signal
+import os
+import logging
+import stat
+import argparse
+import uuid
+
+# external imports
+from chaind import Environment
+import confini
+from hexathon import strip_0x
+from chainlib.chain import ChainSpec
+from chainlib.eth.connection import EthHTTPConnection
+from chainlib.eth.block import block_latest
+from chainsyncer.driver import (
+        HeadSyncer,
+        HistorySyncer,
+        )
+from chainsyncer.db import dsn_from_config
+from chainsyncer.db.models.base import SessionBase
+from chainsyncer.backend.sql import SQLBackend
+from chainsyncer.error import SyncDone
+
+# local imports
+from chaind_eth.filter import StateFilter
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+env = Environment(domain='eth', env=os.environ)
+
+argparser = argparse.ArgumentParser('chainqueue transaction submission and trigger server')
+argparser.add_argument('-c', '--config', dest='c', type=str, default=env.config_dir, help='configuration directory')
+argparser.add_argument('-p', type=str, help='rpc endpoint')
+argparser.add_argument('-i', type=str, help='chain spec')
+argparser.add_argument('--runtime-dir', dest='runtime_dir', type=str, default=env.runtime_dir, help='runtime directory')
+argparser.add_argument('--data-dir', dest='data_dir', type=str, default=env.data_dir, help='data directory')
+argparser.add_argument('--session-id', dest='session_id', type=str, default=env.session, help='session id to use for session')
+argparser.add_argument('--offset', type=int, default=0, help='block number to start sync')
+argparser.add_argument('--skip-history', action='store_true', help='do not sync initial history')
+argparser.add_argument('--interval', type=int, default=5, help='sync pool interval, in seconds')
+argparser.add_argument('-v', action='store_true', help='be verbose')
+argparser.add_argument('-vv', action='store_true', help='be very verbose')
+args = argparser.parse_args(sys.argv[1:])
+
+if args.vv:
+    logg.setLevel(logging.DEBUG)
+elif args.v:
+    logg.setLevel(logging.INFO)
+
+# process config
+config = confini.Config(args.c)
+config.process()
+args_override = {
+            'SESSION_RUNTIME_DIR': getattr(args, 'runtime_dir'),
+            'SESSION_CHAIN_SPEC': getattr(args, 'i'),
+            'RPC_ENDPOINT': getattr(args, 'p'),
+            'SESSION_DATA_DIR': getattr(args, 'data_dir'),
+            'SYNCER_LOOP_INTERVAL': getattr(args, 'interval'),
+            'SYNCER_HISTORY_START': getattr(args, 'offset'),
+            'SYNCER_SKIP_HISTORY': getattr(args, 'skip_history'),
+            'SESSION_ID': getattr(args, 'session_id'),
+        }
+config.dict_override(args_override, 'cli flag')
+
+if config.get('DATABASE_ENGINE') == 'sqlite':
+    config.add(os.path.join(config.get('SESSION_DATA_DIR'), config.get('DATABASE_NAME')), 'DATABASE_NAME', True)
+ 
+config.censor('PASSWORD', 'DATABASE')
+logg.debug('config loaded\n{}'.format(config))
+
+chain_spec = ChainSpec.from_chain_str(config.get('SESSION_CHAIN_SPEC'))
+
+dsn = dsn_from_config(config)
+SQLBackend.setup(dsn, debug=config.true('DATABASE_DEBUG'))
+rpc = EthHTTPConnection(url=config.get('RPC_ENDPOINT'), chain_spec=chain_spec)
+
+
+def register_filter_tags(filters, session):
+    for f in filters:
+        tag = f.tag()
+        try:
+            add_tag(session, tag[0], domain=tag[1])
+            session.commit()
+            logg.info('added tag name "{}" domain "{}"'.format(tag[0], tag[1]))
+        except sqlalchemy.exc.IntegrityError:
+            session.rollback()
+            logg.debug('already have tag name "{}" domain "{}"'.format(tag[0], tag[1]))
+
+
+def main():
+    o = block_latest()
+    r = rpc.do(o)
+    block_offset = int(strip_0x(r), 16) + 1
+
+    syncers = []
+
+    syncer_backends = SQLBackend.resume(chain_spec, block_offset)
+
+    if len(syncer_backends) == 0:
+        initial_block_start = config.get('SYNCER_HISTORY_START')
+        initial_block_offset = block_offset
+        if config.true('SYNCER_SKIP_HISTORY'):
+            initial_block_start = block_offset
+            initial_block_offset += 1
+        syncer_backends.append(SQLBackend.initial(chain_spec, initial_block_offset, start_block_height=initial_block_start))
+        logg.info('found no backends to resume, adding initial sync from history start {} end {}'.format(initial_block_start, initial_block_offset))
+    else:
+        for syncer_backend in syncer_backends:
+            logg.info('resuming sync session {}'.format(syncer_backend))
+
+    for syncer_backend in syncer_backends:
+        syncers.append(HistorySyncer(syncer_backend))
+
+    syncer_backend = SQLBackend.live(chain_spec, block_offset+1)
+    syncers.append(HeadSyncer(syncer_backend))
+
+    state_filter = StateFilter(chain_spec)
+    filters = [
+        state_filter,
+            ]
+
+    i = 0
+    for syncer in syncers:
+        logg.debug('running syncer index {}'.format(i))
+        for f in filters:
+            syncer.add_filter(f)
+        r = syncer.loop(int(config.get('SYNCER_LOOP_INTERVAL')), rpc)
+        sys.stderr.write("sync {} done at block {}\n".format(syncer, r))
+
+        i += 1
+
+    sys.exit(0)
+
+
+if __name__ == '__main__':
+    main()