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gptel-privategpt.el
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gptel-privategpt.el
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;;; gptel-privategpt.el --- Privategpt AI suppport for gptel -*- lexical-binding: t; -*-
;; Copyright (C) 2023 Karthik Chikmagalur
;; Author: Karthik Chikmagalur <[email protected]>
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This file adds support for Privategpt's Messages API to gptel
;;; Code:
(require 'cl-generic)
(eval-when-compile
(require 'cl-lib))
(require 'map)
(require 'gptel)
(defvar json-object-type)
(declare-function prop-match-value "text-property-search")
(declare-function text-property-search-backward "text-property-search")
(declare-function json-read "json" ())
;;; Privategpt (Messages API)
(cl-defstruct (gptel-privategpt (:constructor gptel--make-privategpt)
(:copier nil)
(:include gptel-openai))
context sources)
(defun gptel--privategpt-parse-sources (response)
(cl-loop with source-alist
for source across (map-nested-elt response '(:choices 0 :sources))
for name = (map-nested-elt source '(:document :doc_metadata :file_name))
for page = (map-nested-elt source '(:document :doc_metadata :page_label))
do (push page (alist-get name source-alist nil nil #'equal))
finally return
(cl-loop for (file-name . file-pages) in source-alist
for pages = (delete-dups (delq nil file-pages))
if pages
collect (format "- %s (page %s)" file-name (mapconcat #'identity pages ", "))
into source-items
else collect (format "- %s" file-name) into source-items
finally return (mapconcat #'identity (cons "\n\nSources:" source-items) "\n"))))
(cl-defmethod gptel-curl--parse-stream ((_backend gptel-privategpt) info)
(let* ((content-strs))
(condition-case nil
(while (re-search-forward "^data:" nil t)
(save-match-data
(if (looking-at " *\\[DONE\\]")
(when-let ((sources-string (plist-get info :sources)))
(push sources-string content-strs))
(let ((response (gptel--json-read)))
(unless (or (plist-get info :sources)
(not (gptel-privategpt-sources (plist-get info :backend))))
(plist-put info :sources (gptel--privategpt-parse-sources response)))
(let* ((delta (map-nested-elt response '(:choices 0 :delta)))
(content (plist-get delta :content)))
(push content content-strs))))))
(error
(goto-char (match-beginning 0))))
(apply #'concat (nreverse content-strs))))
(cl-defmethod gptel--parse-response ((_backend gptel-privategpt) response info)
(let ((response-string (map-nested-elt response '(:choices 0 :message :content)))
(sources-string (and (gptel-privategpt-sources (plist-get info :backend))
(gptel--privategpt-parse-sources response))))
(concat response-string sources-string)))
(cl-defmethod gptel--request-data ((_backend gptel-privategpt) prompts)
"JSON encode PROMPTS for sending to ChatGPT."
(let ((prompts-plist
`(:model ,gptel-model
:messages [,@prompts]
:use_context ,(or (gptel-privategpt-context gptel-backend) :json-false)
:include_sources ,(or (gptel-privategpt-sources gptel-backend) :json-false)
:stream ,(or (and gptel-stream gptel-use-curl
(gptel-backend-stream gptel-backend))
:json-false))))
(when gptel-temperature
(plist-put prompts-plist :temperature gptel-temperature))
(when gptel-max-tokens
(plist-put prompts-plist :max_tokens gptel-max-tokens))
prompts-plist))
;;;###autoload
(cl-defun gptel-make-privategpt
(name &key curl-args stream key
(header
(lambda () (when-let (key (gptel--get-api-key))
`(("Authorization" . ,(concat "Bearer " key))))))
(host "localhost:8001")
(protocol "http")
(models '("private-gpt"))
(endpoint "/v1/chat/completions")
(context t) (sources t))
"Register an Privategpt API-compatible backend for gptel with NAME.
Keyword arguments:
CURL-ARGS (optional) is a list of additional Curl arguments.
HOST (optional) is the API host, \"api.privategpt.com\" by default.
MODELS is a list of available model names.
STREAM is a boolean to toggle streaming responses, defaults to
false.
PROTOCOL (optional) specifies the protocol, https by default.
ENDPOINT (optional) is the API endpoint for completions, defaults to
\"/v1/messages\".
HEADER (optional) is for additional headers to send with each
request. It should be an alist or a function that retuns an
alist, like:
((\"Content-Type\" . \"application/json\"))
KEY is a variable whose value is the API key, or function that
returns the key.
CONTEXT and SOURCES: if true (the default), use available context
and provide sources used by the model to generate the response."
(declare (indent 1))
(let ((backend (gptel--make-privategpt
:curl-args curl-args
:name name
:host host
:header header
:key key
:models models
:protocol protocol
:endpoint endpoint
:stream stream
:url (if protocol
(concat protocol "://" host endpoint)
(concat host endpoint))
:context context
:sources sources)))
(prog1 backend
(setf (alist-get name gptel--known-backends
nil nil #'equal)
backend))))
(provide 'gptel-privategpt)
;;; gptel-backends.el ends here