chat-cli: renamed and added Ollama support

I have added support for Ollama to my chat-cli tool (formerly named cli-chatgpt, see previous posts). Ollama is a very easy way to run llama2 locally; it runs a local HTTP server and this will be used.

Depending on whether an OpenAI key or Ollama are available, the models will be made available and you can see this in cgt -h. (Using cgt as a command here is based on my recommendation of using an alias in your shell.)

When you’re offline, OpenAI is deemed unavailable, thus–if it is installed and active–Ollama/llama2 will be used automatically. While it currently doesn’t switch between models during a conversation (because of your online state), you can simply exit and re-continue the conversation with another model using cgt -l.

Both models show their responses in a streaming way.

❯ cgt where is gerolstein
Model: gpt-3.5-turbo
> where is gerolstein

Gerolstein is a town in the Bitburg-Prüm district in Rhineland-Palatinate, Germany. It is located in the Eifel mountain range, approximately 15 kilometers southeast of Bitburg.
> ^c

### Went offline here.
❯ cgt where is gerolstein
Model: llama2:latest
> where is gerolstein

 Gerolstein is a town located in the state of Rhineland-Palatinate, Germany. It is situated in the northern part of the state, approximately 20 kilometers (12 miles) northwest of the city of Mainz. The exact address of Gerolstein is:

Gerolstein, Germany

If you are planning to visit Gerolstein or need more detailed information, please let me know and I will be happy to help.
>

While there is no config available, you can change the priority of models in the source.

Resuming ChatGPT chats in CLI

I have issued an update to my CLI ChatGPT Client (see when I first announced it) so that you can now resume conversations. Here is the new --help output (I personally have an alias cgt=path/to/chat.php to have it quickly available):

Usage: chat.php [-l] [-r [number]] [-s system_prompt] [conversation_input]

Options:
  -l                 Resume last conversation.
  -r [number]        Resume a previous conversation and list 'number' conversations (default: 10).
  -s [system_prompt] Specify a system prompt preceeding the conversation.

Arguments:
  conversation_input  Input for the first conversation.

Notes:
  - To input multiline messages, send an empty message.
  - To end the conversation, enter "bye".

Example usage:
  chat.php -l
    Resumes the last conversation.

  chat.php -r 5
    Resume a conversation and list the last 5 to choose from.

  chat.php -s "Only respond in emojis"
    Have an interesting conversation 🙂

  chat.php Tell me a joke
    Starts a new conversation with the given message.

The CLI client uses a streaming response, so you can watch as it generates your answer.

The resuming functionaliy also changed re-arranges the history in the chat cli folder to a structure chats/%Y/%M/history.%U.txt (with %Y being a 4-digit year, %M a two-digit month and %U the unix timestamp when it was started). The prompt is readline compatibly with a history file so that you can quickly reuse previous questions. You can avoid something to be added to history by prepending it with whitespace.

chat.php -l will quickly resume the last conversation but you can also resume other ones:

$ cgt -r 3                                                                                                                                                     Resuming a conversation. Please choose one: 

1) is there an alternative to the logwatch program that can send daily e-mails with reports on log file (1 answer, 248 words)

2) please give me javascript that restarts a video when i click on it (2 answers, 237 words)

3) does a one-letter domain like w.org (specifically) cost more than other .org domains? (3 answers, 253 words)

Please enter the number of the conversation you want to resume (m for more):

To me, it is very powerful to have ChatGPT available in the CLI since I always have a terminal open. Keeping searchable local history is also something that I like for later (offline) reference.