# 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
```
