Fix mayor bug found by fomo, sym info getting stored incorrectly on pps.toml causing it to load pp wrong on second open, also fix header leak bug

piker/config.py

@@ -237,6 +237,7 @@ def write(
     config: dict,  # toml config as dict
     name: str = 'brokers',
     path: str = None,
+    fail_empty: bool = True,
     **toml_kwargs,
 
 ) -> None:
@@ -252,7 +253,7 @@ def write(
         log.debug(f"Creating config dir {_config_dir}")
         os.makedirs(dirname)
 
-    if not config:
+    if not config and fail_empty:
         raise ValueError(
             "Watch out you're trying to write a blank config!")
 

piker/pp.py

@@ -22,6 +22,7 @@ that doesn't try to cuk most humans who prefer to not lose their moneys..
 '''
 from __future__ import annotations
 from contextlib import contextmanager as cm
+from pathlib import Path
 from decimal import Decimal, ROUND_HALF_EVEN
 from pprint import pformat
 import os
@@ -198,12 +199,10 @@ class Position(Struct):
         sym_info = s.broker_info[broker]
 
         d['symbol'] = {
-            'info': {
             'asset_type': sym_info['asset_type'],
             'price_tick_size': sym_info['price_tick_size'],
             'lot_tick_size': sym_info['lot_tick_size']
         }
-        }
 
         if self.expiry is None:
             d.pop('expiry', None)
@@ -693,12 +692,21 @@ class PpTable(Struct):
         '''
         # TODO: show diff output?
         # https://stackoverflow.com/questions/12956957/print-diff-of-python-dictionaries
-        log.info(f'Updating ``pps.toml`` for {path}:\n')
         # active, closed_pp_objs = table.dump_active()
         pp_entries = self.to_toml()
+        if pp_entries:
+            log.info(f'Updating ``pps.toml`` for {path}:\n')
             log.info(f'Current positions:\n{pp_entries}')
             self.conf[self.brokername][self.acctid] = pp_entries
 
+        elif (
+            self.brokername in self.conf and
+            self.acctid in self.conf[self.brokername]
+        ):
+            del self.conf[self.brokername][self.acctid]
+            if len(self.conf[self.brokername]) == 0:
+                del self.conf[self.brokername]
+
         # TODO: why tf haven't they already done this for inline
         # tables smh..
         enc = PpsEncoder(preserve=True)
@@ -711,6 +719,7 @@ class PpTable(Struct):
             self.conf,
             'pps',
             encoder=enc,
+            fail_empty=False
         )
 
 
@@ -972,7 +981,8 @@ def open_pps(
             expiry = pendulum.parse(expiry)
 
         pp = pp_objs[bsuid] = Position(
-            Symbol.from_fqsn(fqsn, info={}),
+            Symbol.from_fqsn(
+                fqsn, entry['symbol']),
             size=size,
             ppu=ppu,
             split_ratio=split_ratio,