Commits on May 11, 2023

1. Print error type to give more context …

   ```
   poetry run python -m synapse.app.homeserver -c homeserver.yaml
   **********************************************************************************
    Error during initialisation:
       connection to server at "localhost" (::1), port 5432 failed: Connection refused
    	Is the server running on that host and accepting TCP/IP connections?
    connection to server at "localhost" (127.0.0.1), port 5432 failed: Connection refused
    	Is the server running on that host and accepting TCP/IP connections?
   
    There may be more information in the logs.
   **********************************************************************************
   ```
   
   ```
   poetry run python -m synapse.app.homeserver -c homeserver.yaml
   **********************************************************************************
    Error during initialisation:
       psycopg2.OperationalError: connection to server at "localhost" (::1), port 5432 failed: Connection refused
      Is the server running on that host and accepting TCP/IP connections?
    connection to server at "localhost" (127.0.0.1), port 5432 failed: Connection refused
      Is the server running on that host and accepting TCP/IP connections?
   
    There may be more information in the logs.
   **********************************************************************************
   ```
   
   ```
   2023-05-10 22:53:56,000 - synapse.app._base - 214 - ERROR - main - Exception during startup
   Traceback (most recent call last):
     File "/home/eric/Documents/github/element/synapse/synapse/app/homeserver.py", line 352, in setup
       hs.setup()
     File "/home/eric/Documents/github/element/synapse/synapse/server.py", line 337, in setup
       self.datastores = Databases(self.DATASTORE_CLASS, self)
     File "/home/eric/Documents/github/element/synapse/synapse/storage/databases/__init__.py", line 65, in __init__
       with make_conn(database_config, engine, "startup") as db_conn:
     File "/home/eric/Documents/github/element/synapse/synapse/storage/database.py", line 161, in make_conn
       native_db_conn = engine.module.connect(**db_params)
     File "/home/eric/.cache/pypoetry/virtualenvs/matrix-synapse-xCtC9ulO-py3.10/lib/python3.10/site-packages/psycopg2/__init__.py", line 122, in connect
       conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
   psycopg2.OperationalError: connection to server at "localhost" (::1), port 5432 failed: Connection refused
      Is the server running on that host and accepting TCP/IP connections?
   connection to server at "localhost" (127.0.0.1), port 5432 failed: Connection refused
      Is the server running on that host and accepting TCP/IP connections?
   ```

   

   MadLittleMods committed May 11, 2023
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2. Print full startup exception

   

   MadLittleMods committed May 11, 2023
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3. Add changelog

   

   MadLittleMods committed May 11, 2023
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4. Fix lint

   

   MadLittleMods committed May 11, 2023
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5. Fix type

   

   MadLittleMods committed May 11, 2023
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6. All we need is traceback.format_exception

   

   MadLittleMods committed May 11, 2023
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7. Fix typo

   

   MadLittleMods committed May 11, 2023
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