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55 lines
1.5 KiB
Markdown
55 lines
1.5 KiB
Markdown
---
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nav_order: 30
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has_children: true
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description: How to use aider to pair program with AI and edit code in your local git repo.
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---
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# Usage
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Run `aider` with the source code files you want to edit.
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These files will be "added to the chat session", so that
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aider can see their
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contents and edit them for you.
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```
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aider <file1> <file2> ...
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```
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## Adding files
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Just add the files that the aider will need to *edit*.
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If you add too many files, the LLM can get overwhelmed
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and confused (and it costs more tokens).
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Aider will automatically
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pull in content from related files so that it can
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[understand the rest of your code base](https://aider.chat/docs/repomap.html).
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You can also run aider without naming any files and use the in-chat
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`/add` command to add files.
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Or you can skip adding files completely, and aider
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will try to figure out which files need to be edited based
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on your requests.
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## LLMs
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Aider uses GPT-4o by default, but you can
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[connect to many different LLMs](/docs/llms.html).
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Claude 3 Opus is another model which works very well with aider,
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which you can use by running `aider --opus`.
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You can run `aider --model XXX` to launch aider with
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a specific model.
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Or, during your chat you can switch models with the in-chat
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`/model` command.
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## Making changes
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Ask aider to make changes to your code.
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It will show you some diffs of the changes it is making to
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complete you request.
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Aider will git commit all of its changes,
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so they are easy to track and undo.
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You can always use the `/undo` command to undo changes you don't
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like.
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