add timestamps to text logging

[nominatim.git] / nominatim / api / logging.py

diff --git a/nominatim/api/logging.py b/nominatim/api/logging.py
index 8d9af10c81aceb57a2117a99ff28491b79c69665..37ae7f5f04464241ad0e81062b56d125555cadff 100644 (file)
--- a/nominatim/api/logging.py
+++ b/nominatim/api/logging.py
@@ -12,6 +12,7 @@ from contextvars import ContextVar
 import datetime as dt
 import textwrap
 import io
+import re
 
 import sqlalchemy as sa
 from sqlalchemy.ext.asyncio import AsyncConnection
@@ -80,7 +81,8 @@ class BaseLogger:
         """
 
     def format_sql(self, conn: AsyncConnection, statement: 'sa.Executable',
-                   extra_params: Union[Mapping[str, Any], Sequence[Mapping[str, Any]], None]) -> str:
+                   extra_params: Union[Mapping[str, Any],
+                                 Sequence[Mapping[str, Any]], None]) -> str:
         """ Return the comiled version of the statement.
         """
         compiled = cast('sa.ClauseElement', statement).compile(conn.sync_engine)
@@ -93,8 +95,21 @@ class BaseLogger:
             for k in extra_params[0]:
                 params[k] = f':{k}'
 
-        return str(compiled) % params
+        sqlstr = str(compiled)
 
+        if sa.__version__.startswith('1'):
+            try:
+                sqlstr = re.sub(r'__\[POSTCOMPILE_[^]]*\]', '%s', sqlstr)
+                return sqlstr % tuple((repr(params.get(name, None))
+                                      for name in compiled.positiontup)) # type: ignore
+            except TypeError:
+                return sqlstr
+
+        # Fixes an odd issue with Python 3.7 where percentages are not
+        # quoted correctly.
+        sqlstr = re.sub(r'%(?!\()', '%%', sqlstr)
+        sqlstr = re.sub(r'__\[POSTCOMPILE_([^]]*)\]', r'%(\1)s', sqlstr)
+        return sqlstr % params
 
 class HTMLLogger(BaseLogger):
     """ Logger that formats messages in HTML.
@@ -220,6 +235,10 @@ class TextLogger(BaseLogger):
         self.buffer = io.StringIO()
 
 
+    def _timestamp(self) -> None:
+        self._write(f'[{dt.datetime.now()}]\n')
+
+
     def get_buffer(self) -> str:
         return self.buffer.getvalue()
 
@@ -232,6 +251,7 @@ class TextLogger(BaseLogger):
 
 
     def section(self, heading: str) -> None:
+        self._timestamp()
         self._write(f"\n# {heading}\n\n")
 
 
@@ -268,6 +288,7 @@ class TextLogger(BaseLogger):
 
 
     def result_dump(self, heading: str, results: Iterator[Tuple[Any, Any]]) -> None:
+        self._timestamp()
         self._write(f'{heading}:\n')
         total = 0
         for rank, res in results:
@@ -283,6 +304,7 @@ class TextLogger(BaseLogger):
 
     def sql(self, conn: AsyncConnection, statement: 'sa.Executable',
             params: Union[Mapping[str, Any], Sequence[Mapping[str, Any]], None]) -> None:
+        self._timestamp()
         sqlstr = '\n| '.join(textwrap.wrap(self.format_sql(conn, statement, params), width=78))
         self._write(f"| {sqlstr}\n\n")