mirror of
https://github.com/khoaliber/khoj.git
synced 2026-03-02 13:18:18 +00:00
bc7477ea3e
- What
- The Emacs and Obsidian interfaces stay in their original
directories under src/
- src/khoj now only contains code meant for pypi packaging
- Benefits
- This avoids having to update khoj MELPA, Obsidian plugin config as
the Emacs, Obsidian code is under their original directories
- It separates the code in src/khoj meant for python packaging from
code for external interfaces like Emacs and Obsidian
527 lines
23 KiB
EmacsLisp
527 lines
23 KiB
EmacsLisp
;;; khoj.el --- Natural, Incremental Search for your Second Brain -*- lexical-binding: t -*-
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;; Copyright (C) 2021-2022 Debanjum Singh Solanky
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;; Author: Debanjum Singh Solanky <debanjum@gmail.com>
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;; Description: Natural, Incremental Search for your Second Brain
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;; Keywords: search, org-mode, outlines, markdown, beancount, ledger, image
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;; Version: 0.3.0
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;; Package-Requires: ((emacs "27.1") (transient "0.3.0"))
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;; URL: https://github.com/debanjum/khoj/tree/master/src/interface/emacs
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;; This file is NOT part of GNU Emacs.
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;;; License:
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License
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;; as published by the Free Software Foundation; either version 3
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;; of the License, or (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This package provides a natural, incremental search interface to your
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;; `org-mode' notes, `markdown' files, `beancount' transactions and images.
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;; It is a wrapper that interfaces with the Khoj server.
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;; The server exposes an API for advanced search using transformer ML models.
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;; The Khoj server needs to be running to use this package.
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;; See the repository docs for detailed setup of the Khoj server.
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;;
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;; Quickstart
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;; -------------
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;; 1. Install Khoj Server
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;; pip install khoj-assistant
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;; 2. Start, Configure Khoj Server
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;; khoj
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;; 3. Install khoj.el from MELPA Stable
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;; (use-package khoj :pin melpa-stable :bind ("C-c s" . 'khoj))
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;;; Code:
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(require 'url)
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(require 'json)
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(require 'transient)
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(require 'outline)
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(eval-when-compile (require 'subr-x)) ;; for string-trim before Emacs 28.2
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;; -------------------------
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;; Khoj Static Configuration
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;; -------------------------
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(defcustom khoj-server-url "http://localhost:8000"
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"Location of Khoj API server."
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:group 'khoj
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:type 'string)
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(defcustom khoj-image-width 156
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"Width of rendered images returned by Khoj."
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:group 'khoj
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:type 'integer)
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(defcustom khoj-image-height 156
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"Height of rendered images returned by Khoj."
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:group 'khoj
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:type 'integer)
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(defcustom khoj-results-count 5
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"Number of results to get from Khoj API for each query."
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:group 'khoj
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:type 'integer)
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(defcustom khoj-default-content-type "org"
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"The default content type to perform search on."
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:group 'khoj
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:type '(choice (const "org")
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(const "markdown")
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(const "ledger")
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(const "image")
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(const "music")))
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;; --------------------------
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;; Khoj Dynamic Configuration
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;; --------------------------
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(defvar khoj--minibuffer-window nil
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"Minibuffer window used to enter query.")
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(defconst khoj--query-prompt "🦅Khoj: "
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"Query prompt shown in the minibuffer.")
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(defconst khoj--buffer-name "*🦅Khoj*"
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"Name of buffer to show results from Khoj.")
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(defvar khoj--content-type "org"
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"The type of content to perform search on.")
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(declare-function beancount-mode "beancount" ())
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(declare-function markdown-mode "markdown-mode" ())
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(declare-function org-music-mode "org-music" ())
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(declare-function which-key--show-keymap "which-key" (KEYMAP-NAME KEYMAP &optional PRIOR-ARGS ALL
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NO-PAGING FILTER))
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(defun khoj--keybindings-info-message ()
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"Show available khoj keybindings in-context, when khoj invoked."
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(let ((enabled-content-types (khoj--get-enabled-content-types)))
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(concat
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"
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Set Content Type
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-------------------------\n"
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(when (member 'markdown enabled-content-types)
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"C-x m | markdown\n")
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(when (member 'org enabled-content-types)
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"C-x o | org-mode\n")
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(when (member 'ledger enabled-content-types)
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"C-x l | ledger\n")
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(when (member 'image enabled-content-types)
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"C-x i | image\n")
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(when (member 'music enabled-content-types)
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"C-x M | music\n"))))
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(defvar khoj--rerank nil "Track when re-rank of results triggered.")
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(defun khoj--search-markdown () "Set content-type to `markdown'." (interactive) (setq khoj--content-type "markdown"))
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(defun khoj--search-org () "Set content-type to `org-mode'." (interactive) (setq khoj--content-type "org"))
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(defun khoj--search-ledger () "Set content-type to `ledger'." (interactive) (setq khoj--content-type "ledger"))
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(defun khoj--search-images () "Set content-type to image." (interactive) (setq khoj--content-type "image"))
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(defun khoj--search-music () "Set content-type to music." (interactive) (setq khoj--content-type "music"))
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(defun khoj--improve-rank () "Use cross-encoder to rerank search results." (interactive) (khoj--incremental-search t))
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(defun khoj--make-search-keymap (&optional existing-keymap)
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"Setup keymap to configure Khoj search. Build of EXISTING-KEYMAP when passed."
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(let ((enabled-content-types (khoj--get-enabled-content-types))
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(kmap (or existing-keymap (make-sparse-keymap))))
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(define-key kmap (kbd "C-c RET") #'khoj--improve-rank)
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(when (member 'markdown enabled-content-types)
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(define-key kmap (kbd "C-x m") #'khoj--search-markdown))
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(when (member 'org enabled-content-types)
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(define-key kmap (kbd "C-x o") #'khoj--search-org))
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(when (member 'ledger enabled-content-types)
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(define-key kmap (kbd "C-x l") #'khoj--search-ledger))
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(when (member 'image enabled-content-types)
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(define-key kmap (kbd "C-x i") #'khoj--search-images))
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(when (member 'music enabled-content-types)
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(define-key kmap (kbd "C-x M") #'khoj--search-music))
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kmap))
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(defvar khoj--keymap nil "Track Khoj keymap in this variable.")
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(defun khoj--display-keybinding-info ()
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"Display information on keybindings to customize khoj search.
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Use `which-key` if available, else display simple message in echo area"
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(if (fboundp 'which-key-show-full-keymap)
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(let ((khoj--keymap (khoj--make-search-keymap)))
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(which-key--show-keymap (symbol-name 'khoj--keymap)
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(symbol-value 'khoj--keymap)
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nil t t))
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(message "%s" (khoj--keybindings-info-message))))
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;; -----------------------------------------------
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;; Extract and Render Entries of each Content Type
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;; -----------------------------------------------
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(defun khoj--extract-entries-as-markdown (json-response query)
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"Convert JSON-RESPONSE, QUERY from API to markdown entries."
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(thread-last
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json-response
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;; Extract and render each markdown entry from response
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(mapcar (lambda (json-response-item)
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(thread-last
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;; Extract markdown entry from each item in json response
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(cdr (assoc 'entry json-response-item))
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;; Format markdown entry as a string
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(format "%s\n\n")
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;; Standardize results to 2nd level heading for consistent rendering
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(replace-regexp-in-string "^\#+" "##"))))
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;; Render entries into markdown formatted string with query set as as top level heading
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(format "# %s\n%s" query)
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;; remove leading (, ) or SPC from extracted entries string
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(replace-regexp-in-string "^[\(\) ]" "")))
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(defun khoj--extract-entries-as-org (json-response query)
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"Convert JSON-RESPONSE, QUERY from API to `org-mode' entries."
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(let ((org-results-buffer-format-str "* %s\n%s\n#+STARTUP: showall hidestars inlineimages"))
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(thread-last
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json-response
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;; Extract and render each org-mode entry from response
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(mapcar (lambda (json-response-item)
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(thread-last
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;; Extract org entry from each item in json response
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(cdr (assoc 'entry json-response-item))
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;; Format org entry as a string
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(format "%s")
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;; Standardize results to 2nd level heading for consistent rendering
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(replace-regexp-in-string "^\*+" "**"))))
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;; Render entries into org formatted string with query set as as top level heading
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(format org-results-buffer-format-str query)
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;; remove leading (, ) or SPC from extracted entries string
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(replace-regexp-in-string "^[\(\) ]" ""))))
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(defun khoj--extract-entries-as-ledger (json-response query)
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"Convert JSON-RESPONSE, QUERY from API to ledger entries."
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(thread-last json-response
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;; extract and render entries from API response
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(mapcar (lambda (args) (format "%s\n\n" (cdr (assoc 'entry args)))))
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;; Set query as heading in rendered results buffer
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(format ";; %s\n\n%s\n" query)
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;; remove leading (, ) or SPC from extracted entries string
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(replace-regexp-in-string "^[\(\) ]" "")
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;; remove trailing (, ) or SPC from extracted entries string
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(replace-regexp-in-string "[\(\) ]$" "")))
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(defun khoj--extract-entries-as-images (json-response query)
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"Convert JSON-RESPONSE, QUERY from API to html with images."
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(let ((image-results-buffer-html-format-str "<html>\n<body>\n<h1>%s</h1>%s\n\n</body>\n</html>")
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;; Format string to wrap images into html img, href tags with metadata in headings
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(image-result-html-format-str "\n\n<h2>Score: %s Meta: %s Image: %s</h2>\n\n<a href=\"%s\">\n<img src=\"%s?%s\" width=%s height=%s>\n</a>"))
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(thread-last
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json-response
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;; Extract each image entry from response and render as html
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(mapcar (lambda (json-response-item)
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(let ((score (cdr (assoc 'score json-response-item)))
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(metadata_score (cdr (assoc 'metadata_score (assoc 'additional json-response-item))))
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(image_score (cdr (assoc 'image_score (assoc 'additional json-response-item))))
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(image_url (concat khoj-server-url (cdr (assoc 'entry json-response-item)))))
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;; Wrap images into html img, href tags with metadata in headings
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(format image-result-html-format-str
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;; image scores metadata
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score metadata_score image_score
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;; image url
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image_url image_url (random 10000)
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;; image dimensions
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khoj-image-width khoj-image-height))))
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;; Collate entries into single html page string
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(format image-results-buffer-html-format-str query)
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;; remove leading (, ) or SPC from extracted entries string
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(replace-regexp-in-string "^[\(\) ]" "")
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;; remove trailing (, ) or SPC from extracted entries string
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(replace-regexp-in-string "[\(\) ]$" ""))))
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(defun khoj--buffer-name-to-content-type (buffer-name)
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"Infer content type based on BUFFER-NAME."
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(let ((enabled-content-types (khoj--get-enabled-content-types))
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(file-extension (file-name-extension buffer-name)))
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(cond
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((and (member 'music enabled-content-types) (equal buffer-name "Music.org")) "music")
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((and (member 'ledger enabled-content-types) (or (equal file-extension "bean") (equal file-extension "beancount"))) "ledger")
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((and (member 'org enabled-content-types) (equal file-extension "org")) "org")
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((and (member 'markdown enabled-content-types) (or (equal file-extension "markdown") (equal file-extension "md"))) "markdown")
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(t khoj-default-content-type))))
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;; --------------
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;; Query Khoj API
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;; --------------
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(defun khoj--get-enabled-content-types ()
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"Get content types enabled for search from API."
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(let ((config-url (format "%s/api/config/data" khoj-server-url))
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(url-request-method "GET"))
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(with-temp-buffer
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(erase-buffer)
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(url-insert-file-contents config-url)
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(let* ((json-response (json-parse-buffer :object-type 'alist))
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(content-type (cdr (assoc 'content-type json-response))))
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;; return content-type items with configuration
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(mapcar
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#'car
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(cl-remove-if-not
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(lambda (a) (not (eq (cdr a) :null)))
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content-type))))))
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(defun khoj--construct-api-query (query content-type &optional rerank)
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"Construct API Query from QUERY, CONTENT-TYPE and (optional) RERANK params."
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(let ((rerank (or rerank "false"))
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(encoded-query (url-hexify-string query)))
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(format "%s/api/search?q=%s&t=%s&r=%s&n=%s" khoj-server-url encoded-query content-type rerank khoj-results-count)))
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(defun khoj--query-api-and-render-results (query-url content-type query buffer-name)
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"Query Khoj QUERY-URL. Render results in BUFFER-NAME using QUERY, CONTENT-TYPE."
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;; get json response from api
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(with-current-buffer buffer-name
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(let ((inhibit-read-only t)
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(url-request-method "GET"))
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(erase-buffer)
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(url-insert-file-contents query-url)))
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;; render json response into formatted entries
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(with-current-buffer buffer-name
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(let ((inhibit-read-only t)
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(json-response (json-parse-buffer :object-type 'alist)))
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(erase-buffer)
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(insert
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(cond ((or (equal content-type "org") (equal content-type "music")) (khoj--extract-entries-as-org json-response query))
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((equal content-type "markdown") (khoj--extract-entries-as-markdown json-response query))
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((equal content-type "ledger") (khoj--extract-entries-as-ledger json-response query))
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((equal content-type "image") (khoj--extract-entries-as-images json-response query))
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(t (format "%s" json-response))))
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(cond ((equal content-type "org") (progn (org-mode)
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(visual-line-mode)))
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((equal content-type "markdown") (progn (markdown-mode)
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(visual-line-mode)))
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((equal content-type "ledger") (beancount-mode))
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((equal content-type "music") (progn (org-mode)
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(org-music-mode)))
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((equal content-type "image") (progn (shr-render-region (point-min) (point-max))
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(goto-char (point-min))))
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(t (fundamental-mode))))
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(read-only-mode t)))
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;; ------------------
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;; Incremental Search
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;; ------------------
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(defun khoj--incremental-search (&optional rerank)
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"Perform Incremental Search on Khoj. Allow optional RERANK of results."
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(let* ((rerank-str (cond (rerank "true") (t "false")))
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(khoj-buffer-name (get-buffer-create khoj--buffer-name))
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(query (minibuffer-contents-no-properties))
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(query-url (khoj--construct-api-query query khoj--content-type rerank-str)))
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;; Query khoj API only when user in khoj minibuffer and non-empty query
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;; Prevents querying if
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;; 1. user hasn't started typing query
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;; 2. during recursive edits
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;; 3. with contents of other buffers user may jump to
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;; 4. search not triggered right after rerank
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;; ignore to not overwrite reranked results before the user even sees them
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(if khoj--rerank
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(setq khoj--rerank nil)
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(when
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(and
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(not (equal query ""))
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(active-minibuffer-window)
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(equal (current-buffer) khoj--minibuffer-window))
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(progn
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(when rerank
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(setq khoj--rerank t)
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(message "Khoj: Rerank Results"))
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(khoj--query-api-and-render-results
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query-url
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khoj--content-type
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query
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khoj-buffer-name))))))
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(defun khoj--delete-open-network-connections-to-server ()
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"Delete all network connections to khoj server."
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(dolist (proc (process-list))
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(let ((proc-buf (buffer-name (process-buffer proc)))
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(khoj-network-proc-buf (string-join (split-string khoj-server-url "://") " ")))
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(when (string-match (format "%s" khoj-network-proc-buf) proc-buf)
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(delete-process proc)))))
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(defun khoj--teardown-incremental-search ()
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"Teardown hooks used for incremental search."
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(message "Khoj: Teardown Incremental Search")
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;; unset khoj minibuffer window
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(setq khoj--minibuffer-window nil)
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;; delete open connections to khoj server
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(khoj--delete-open-network-connections-to-server)
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;; remove hooks for khoj incremental query and self
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(remove-hook 'post-command-hook #'khoj--incremental-search)
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(remove-hook 'minibuffer-exit-hook #'khoj--teardown-incremental-search))
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(defun khoj-incremental ()
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"Natural, Incremental Search for your personal notes, transactions and music."
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(interactive)
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(let* ((khoj-buffer-name (get-buffer-create khoj--buffer-name)))
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;; switch to khoj results buffer
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(switch-to-buffer khoj-buffer-name)
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;; open and setup minibuffer for incremental search
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(minibuffer-with-setup-hook
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(lambda ()
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;; Add khoj keybindings for configuring search to minibuffer keybindings
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(khoj--make-search-keymap minibuffer-local-map)
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;; Display information on keybindings to customize khoj search
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(khoj--display-keybinding-info)
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;; set current (mini-)buffer entered as khoj minibuffer
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;; used to query khoj API only when user in khoj minibuffer
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(setq khoj--minibuffer-window (current-buffer))
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(add-hook 'post-command-hook #'khoj--incremental-search) ; do khoj incremental search after every user action
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(add-hook 'minibuffer-exit-hook #'khoj--teardown-incremental-search)) ; teardown khoj incremental search on minibuffer exit
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(read-string khoj--query-prompt))))
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;; --------------
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;; Similar Search
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;; --------------
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(defun khoj--get-current-outline-entry-text ()
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"Get text under current outline section."
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(string-trim
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;; get text of current outline entry
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(cond
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;; when at heading of entry
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((looking-at outline-regexp)
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(buffer-substring-no-properties
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(point)
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(save-excursion (outline-next-heading) (point))))
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;; when within entry
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(t (buffer-substring-no-properties
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(save-excursion (outline-previous-heading) (point))
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(save-excursion (outline-next-heading) (point)))))))
|
||
|
||
(defun khoj--get-current-paragraph-text ()
|
||
"Get trimmed text in current paragraph at point.
|
||
Paragraph only starts at first text after blank line."
|
||
(string-trim
|
||
(cond
|
||
;; when at end of a middle paragraph
|
||
((and (looking-at paragraph-start) (not (equal (point) (point-min))))
|
||
(buffer-substring-no-properties
|
||
(save-excursion (backward-paragraph) (point))
|
||
(point)))
|
||
;; else
|
||
(t (thing-at-point 'paragraph t)))))
|
||
|
||
|
||
(defun khoj--find-similar (&optional content-type)
|
||
"Find items of CONTENT-TYPE in khoj index similar to text surrounding point."
|
||
(interactive)
|
||
(let* ((rerank "true")
|
||
;; set content type to: specified > based on current buffer > default type
|
||
(content-type (or content-type (khoj--buffer-name-to-content-type (buffer-name))))
|
||
;; get text surrounding current point based on the major mode context
|
||
(query (cond
|
||
;; get section outline derived mode like org or markdown
|
||
((or (derived-mode-p 'outline-mode) (equal major-mode 'markdown-mode))
|
||
(khoj--get-current-outline-entry-text))
|
||
;; get paragraph, if in text mode
|
||
(t
|
||
(khoj--get-current-paragraph-text))))
|
||
(query-url (khoj--construct-api-query query content-type rerank))
|
||
;; extract heading to show in result buffer from query
|
||
(query-title
|
||
(format "Similar to: %s"
|
||
(replace-regexp-in-string "^[#\\*]* " "" (car (split-string query "\n")))))
|
||
(buffer-name (get-buffer-create khoj--buffer-name)))
|
||
(progn
|
||
(khoj--query-api-and-render-results
|
||
query-url
|
||
content-type
|
||
query-title
|
||
buffer-name)
|
||
(switch-to-buffer buffer-name)
|
||
(goto-char (point-min)))))
|
||
|
||
|
||
;; ---------
|
||
;; Khoj Menu
|
||
;; ---------
|
||
|
||
(transient-define-argument khoj--content-type-switch ()
|
||
:class 'transient-switches
|
||
:argument-format "--content-type=%s"
|
||
:argument-regexp ".+"
|
||
;; set content type to: last used > based on current buffer > default type
|
||
:init-value (lambda (obj) (oset obj value (format "--content-type=%s" (or khoj--content-type (khoj--buffer-name-to-content-type (buffer-name))))))
|
||
;; dynamically set choices to content types enabled on khoj backend
|
||
:choices (or (ignore-errors (mapcar #'symbol-name (khoj--get-enabled-content-types))) '("org" "markdown" "ledger" "music" "image")))
|
||
|
||
(transient-define-suffix khoj--search-command (&optional args)
|
||
(interactive (list (transient-args transient-current-command)))
|
||
(progn
|
||
;; set content type to: specified > last used > based on current buffer > default type
|
||
(setq khoj--content-type (or (transient-arg-value "--content-type=" args) (khoj--buffer-name-to-content-type (buffer-name))))
|
||
;; set results count to: specified > last used > to default
|
||
(setq khoj-results-count (or (transient-arg-value "--results-count=" args) khoj-results-count))
|
||
;; trigger incremental search
|
||
(call-interactively #'khoj-incremental)))
|
||
|
||
(transient-define-suffix khoj--find-similar-command (&optional args)
|
||
"Find items similar to current item at point."
|
||
(interactive (list (transient-args transient-current-command)))
|
||
(progn
|
||
;; set content type to: specified > last used > based on current buffer > default type
|
||
(setq khoj--content-type (or (transient-arg-value "--content-type=" args) (khoj--buffer-name-to-content-type (buffer-name))))
|
||
;; set results count to: specified > last used > to default
|
||
(setq khoj-results-count (or (transient-arg-value "--results-count=" args) khoj-results-count))
|
||
(khoj--find-similar khoj--content-type)))
|
||
|
||
(transient-define-suffix khoj--update-command (&optional args)
|
||
"Call khoj API to update index of specified content type."
|
||
(interactive (list (transient-args transient-current-command)))
|
||
(let* ((force-update (if (member "--force-update" args) "true" "false"))
|
||
;; set content type to: specified > last used > based on current buffer > default type
|
||
(content-type (or (transient-arg-value "--content-type=" args) (khoj--buffer-name-to-content-type (buffer-name))))
|
||
(update-url (format "%s/api/update?t=%s&force=%s" khoj-server-url content-type force-update))
|
||
(url-request-method "GET"))
|
||
(progn
|
||
(setq khoj--content-type content-type)
|
||
(url-retrieve update-url (lambda (_) (message "Khoj %s index %supdated!" content-type (if (member "--force-update" args) "force " "")))))))
|
||
|
||
(transient-define-prefix khoj-menu ()
|
||
"Create Khoj Menu to Configure and Execute Commands."
|
||
[["Configure General"
|
||
("t" "Content Type" khoj--content-type-switch)]
|
||
["Configure Search"
|
||
("n" "Results Count" "--results-count=" :init-value (lambda (obj) (oset obj value (format "%s" khoj-results-count))))]
|
||
["Configure Update"
|
||
("-f" "Force Update" "--force-update")]]
|
||
[["Act"
|
||
("s" "Search" khoj--search-command)
|
||
("f" "Find Similar" khoj--find-similar-command)
|
||
("u" "Update" khoj--update-command)
|
||
("q" "Quit" transient-quit-one)]])
|
||
|
||
|
||
;; ----------
|
||
;; Entrypoint
|
||
;; ----------
|
||
|
||
;;;###autoload
|
||
(defun khoj ()
|
||
"Natural, Incremental Search for your personal notes, transactions and images."
|
||
(interactive)
|
||
(khoj-menu))
|
||
|
||
(provide 'khoj)
|
||
|
||
;;; khoj.el ends here
|