aider: Added a --max-chat-history-tokens switch and passed it to ChatSummary in Coder.

# Aider chat conversation:

USER: add a --max-chat-history-tokens switch, pass it into Coder to `ChatSummary`

ASSISTANT: Here are the changes to add a --max-chat-history-tokens switch and pass it to ChatSummary in Coder:

aider/args.py
```python
<<<<<<< SEARCH
    parser.add_argument(
        "--map-tokens",
        type=int,
        default=1024,
        help="Number of tokens to use for the repo map. Set to 0 to disable.",
    )
=======
    parser.add_argument(
        "--map-tokens",
        type=int,
        default=1024,
        help="Number of tokens to use for the repo map. Set to 0 to disable.",
    )
    parser.add_argument(
        "--max-chat-history-tokens",
        type=int,
        default=None,
        help="Maximum number of tokens to use for chat history. If not specified, uses the model's max_chat_history_tokens.",
    )
>>>>>>> REPLACE
```

aider/coders/base_coder.py
```python
<<<<<<< SEARCH
        self.summarizer = ChatSummary(
            self.main_model.weak_model,
            self.main_model.max_chat_history_tokens,
        )
=======
        max_chat_history_tokens = self.main_model.max_chat_history_tokens
        if kwargs.get("max_chat_history_tokens") is not None:
            max_chat_history_tokens = kwargs["max_chat_history_tokens"]

        self.summarizer = ChatSummary(
            self.main_model.weak_model,
            max_chat_history_tokens,
        )
>>>>>>> REPLACE
```

aider/main.py
```python
<<<<<<< SEARCH
            map_tokens=args.map_tokens,
=======
            map_tokens=args.map_tokens,
            max_chat_history_tokens=args.max_chat_history_tokens,
>>>>>>> REPLACE
```

This adds the new command line argument `--max-chat-history-tokens` which defaults to None. If not specified, it will use the model's default `max_chat_history_tokens`.

It passes this argument from `main()` into the `Coder` constructor.

In the `Coder` constructor, it checks if `max_chat_history_tokens` was provided in the `kwargs`. If so, it uses that value, otherwise it falls back to the model's default.

Let me know if you have any other questions!

ASSISTANT: Here are the changes to add a --max-chat-history-tokens switch and pass it to ChatSummary in Coder:

aider/args.py
```python
<<<<<<< SEARCH
    parser.add_argument(
        "--map-tokens",
        type=int,
        default=1024,
        help="Number of tokens to use for the repo map. Set to 0 to disable.",
    )
=======
    parser.add_argument(
        "--map-tokens",
        type=int,
        default=1024,
        help="Number of tokens to use for the repo map. Set to 0 to disable.",
    )
    parser.add_argument(
        "--max-chat-history-tokens",
        type=int,
        default=None,
        help="Maximum number of tokens to use for chat history. If not specified, uses the model's max_chat_history_tokens.",
    )
>>>>>>> REPLACE
```

aider/coders/base_coder.py
```python
<<<<<<< SEARCH
        self.summarizer = ChatSummary(
            self.main_model.weak_model,
            self.main_model.max_chat_history_tokens,
        )
=======
        max_chat_history_tokens = self.main_model.max_chat_history_tokens
        if kwargs.get("max_chat_history_tokens") is not None:
            max_chat_history_tokens = kwargs["max_chat_history_tokens"]

        self.summarizer = ChatSummary(
            self.main_model.weak_model,
            max_chat_history_tokens,
        )
>>>>>>> REPLACE
```

aider/main.py
```python
<<<<<<< SEARCH
            map_tokens=args.map_tokens,
=======
            map_tokens=args.map_tokens,
            max_chat_history_tokens=args.max_chat_history_tokens,
>>>>>>> REPLACE
```

This adds the new command line argument `--max-chat-history-tokens` which defaults to None. If not specified, it will use the model's default `max_chat_history_tokens`.

It passes this argument from `main()` into the `Coder` constructor.

In the `Coder` constructor, it checks if `max_chat_history_tokens` was provided in the `kwargs`. If so, it uses that value, otherwise it falls back to the model's default.

Let me know if you have any other questions!

USER: InvalidEditBlock: edit failed!

aider/args.py does not contain the *exact chunk* of SEARCH lines you specified.
Try again.
DO NOT skip blank lines, comments, docstrings, etc!
The SEARCH block needs to be EXACTLY the same as the lines in aider/args.py with nothing missing!

aider/args.py does not contain these 6 exact lines in a row:
```
    parser.add_argument(
        "--map-tokens",
        type=int,
        default=1024,
        help="Number of tokens to use for the repo map. Set to 0 to disable.",
    )
```

ASSISTANT: I apologize for the mistake. Here is the corrected change for aider/args.py:

aider/args.py
```python
<<<<<<< SEARCH
    group.add_argument(
        "--map-tokens",
        type=int,
        default=1024,
        help="Max number of tokens to use for repo map, use 0 to disable (default: 1024)",
    )
=======
    group.add_argument(
        "--map-tokens",
        type=int,
        default=1024,
        help="Max number of tokens to use for repo map, use 0 to disable (default: 1024)",
    )
    group.add_argument(
        "--max-chat-history-tokens",
        type=int,
        default=None,
        help="Maximum number of tokens to use for chat history. If not specified, uses the model's max_chat_history_tokens.",
    )
>>>>>>> REPLACE
```

aider/args.py

@@ -151,6 +151,12 @@ def get_parser(default_config_files, git_root):
         default=1024,
         help="Max number of tokens to use for repo map, use 0 to disable (default: 1024)",
     )
+    group.add_argument(
+        "--max-chat-history-tokens",
+        type=int,
+        default=None,
+        help="Maximum number of tokens to use for chat history. If not specified, uses the model's max_chat_history_tokens.",
+    )
     default_env_file = os.path.join(git_root, ".env") if git_root else ".env"
     group.add_argument(
         "--env-file",