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starhugger.el
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starhugger.el
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;;; starhugger.el --- Hugging Face/AI-powered text & code completion client -*- lexical-binding: t; -*-
;; Version: 0.4.3-git
;; Package-Requires: ((emacs "28.2") (compat "29.1.4.0") (dash "2.18.0") (s "1.13.1") (spinner "1.7.4"))
;; Keywords: completion, convenience, languages
;; Homepage: https://gitlab.com/daanturo/starhugger.el
;; 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:
;; Hugging Face/AI-powered text & code completion client (unofficial).
;;; Code:
(require 'cl-lib)
(require 'subr-x)
(require 'map)
(require 'dash)
(require 'compat)
;;;; Helpers
(cl-defmacro starhugger--with-buffer-scrolling (buffer-or-name &rest body)
"Execute the forms in BODY with BUFFER-OR-NAME temporarily current.
Like `with-current-buffer', but allow scrolling the visible
window of BUFFER-OR-NAME when at the buffer end, if any."
(declare (debug t) (indent defun))
`(-let* ((wd (get-buffer-window ,buffer-or-name t)))
(cond
(wd
(with-selected-window wd
;; disallow scrolling when visibly not at end of buffer
(-let* ((eob-flag (eobp))
(pt0 (point)))
(unwind-protect
(progn
,@body)
(unless eob-flag
(goto-char pt0))))))
(t
(with-current-buffer ,buffer-or-name
,@body)))))
;;;; Making requests
(defcustom starhugger-api-token nil
"Hugging Face user access token.
Generate yours at URL `https://huggingface.co/settings/tokens'.
Can be either a direct string, or a function to be called with no
arguments that returns a string. When being a function, it has
to be fast to return.
Note: the (returned) string must be unibyte, ensure that before
dynamically setting with (`encode-coding-string' ... \\='utf-8)."
:group 'starhugger
:type '(choice string function))
(defvar starhugger--model-config-presets
'(("bigcode/starcoder" .
(:endpoint
"https://api-inference.huggingface.co/models/bigcode/starcoder"
:fill-tokens ("<fim_prefix>" "<fim_suffix>" "<fim_middle>")
:stop-tokens ("<|endoftext|>")))
("codellama/CodeLlama-13b-hf" .
(:endpoint
"https://api-inference.huggingface.co/models/codellama/CodeLlama-13b-hf"
:fill-tokens ("<PRE>" "<SUF>" "<MID>")
:stop-tokens ("<|endoftext|>" "<EOT>"))))
"Refer to https://github.com/huggingface/huggingface-vscode/blob/f044ff02f08e49a5da9849f34235fece4a32535b/src/configTemplates.ts#L17.")
(defvar starhugger-model-api-endpoint-url)
(defvar starhugger-fill-tokens)
(defvar starhugger-stop-tokens)
(defcustom starhugger-model-id "bigcode/starcoder2-15b"
"The language model's ID.
If you want to use one of the configuration presets, set this
before loading `starhugger.el' or use `setopt' (or Emacs's
customization interface). Else if you use a custom model,
configure `starhugger-model-api-endpoint-url',
`starhugger-fill-tokens', `starhugger-stop-tokens' manually (and
you don't need to customize this variable if they are set that
way)."
:group 'starhugger
:type 'string
:set (lambda (sym val)
(set-default-toplevel-value sym val)
(-when-let* ((preset
(map-nested-elt
starhugger--model-config-presets
(list starhugger-model-id))))
(setq starhugger-model-api-endpoint-url
(map-nested-elt preset '(:endpoint)))
(setq starhugger-fill-tokens (map-nested-elt preset '(:fill-tokens)))
(setq starhugger-stop-tokens (map-nested-elt preset '(:stop-tokens))))))
(defcustom starhugger-model-api-endpoint-url
(or (map-nested-elt
starhugger--model-config-presets (list starhugger-model-id :endpoint))
(format "https://api-inference.huggingface.co/models/%s"
starhugger-model-id))
"End point URL to make HTTP requests."
:group 'starhugger
:type 'string)
(defcustom starhugger-stop-tokens
(map-nested-elt
starhugger--model-config-presets (list starhugger-model-id :stop-tokens))
"End of sentence tokens."
:group 'starhugger
:type 'string)
(defcustom starhugger-fill-tokens
(map-nested-elt
starhugger--model-config-presets (list starhugger-model-id :fill-tokens))
"List of 3 tokens to use for `starhugger-fill-in-the-middle'.
See
https://github.com/huggingface/huggingface-vscode/blob/73818334f4939c2f19480a404f74944a47933a12/src/runCompletion.ts#L66"
:group 'starhugger
:type '(list string string string))
(defun starhugger--get-all-generated-texts (str)
(-let* ((parsed (json-parse-string str :object-type 'alist))
((_ . err-msg) (and (listp parsed) (assoc 'error parsed))))
(cond
(err-msg
(user-error "`starhugger' response error: %s" err-msg))
(t
(-map (lambda (elem) (alist-get 'generated_text elem)) parsed)))))
(defcustom starhugger-generated-buffer (format "*%s*" 'starhugger)
"Buffer name to log parsed responses."
:group 'starhugger
:type 'string)
(defcustom starhugger-max-prompt-length (* 1024 8)
"Max length of the code in current buffer to send.
Doesn't count fills tokens and maybe the context."
:group 'starhugger
:type 'natnum)
(defvar starhugger--log-buffer (format " *%s-log*" 'starhugger)
"Buffer name to log things, hidden by default.")
(defun starhugger--log (&rest args)
(unless (get-buffer (format " *%s-log*" 'starhugger))
(with-current-buffer (get-buffer-create starhugger--log-buffer)
(read-only-mode)))
(with-current-buffer starhugger--log-buffer
(-let* ((pt0 (and (not (eobp)) (point))))
(dlet ((inhibit-read-only t))
(goto-char (point-max))
(insert (format-time-string "(%F %T) "))
(dolist (obj (-interpose " " args))
(insert (format "%s" obj)))
(insert "\n")
(when pt0
(goto-char pt0))))))
(declare-function spinner-start "spinner")
(defvar spinner-types)
(defvar starhugger--spinner-added-type nil)
(defun starhugger--spinner-start ()
(unless starhugger--spinner-added-type
(require 'spinner)
(push '(starhugger . ["⭐" "🌟"]) spinner-types)
(setq starhugger--spinner-added-type t))
(spinner-start 'starhugger 3))
(defcustom starhugger-enable-spinner t
"Show spinner when fetching interactively."
:group 'starhugger
:type 'boolean)
;; WHY isn't this documented?!
(defvar url-http-end-of-headers)
(defcustom starhugger-additional-data-alist
'((parameters
(return_full_text . :false) ; don't re-include the prompt
)
(options)
;;
)
"Detailed parameter list.
An association list to be converted by `json-serialize'. See
https://huggingface.co/docs/api-inference/detailed_parameters#text-generation-task
for parameters. Note that this packages is built around the
parameter \"return_full_text\" being false, setting it otherwise
may cause unexpected behaviors."
:group 'starhugger
:type 'alist)
(defcustom starhugger-max-new-tokens nil
"When a number, set it to max_new_tokens.
It can be a list of two natural numbers: the number of tokens to
fetch when called automatically and the number of token to fetch
when called interactively. See also
`starhugger-additional-data-alist'."
:group 'starhugger
:type '(choice natnum (list natnum natnum)))
(defun starhugger--json-serialize (object &rest args)
"Like (`json-serialize' OBJECT @ARGS).
Additionally prevent errors about multi-byte characters."
(-->
object (apply #'json-serialize it args) (encode-coding-string it 'utf-8)))
(defvar starhugger--last-request nil)
(defvar starhugger-debug nil)
(defvar starhugger-before-request-hook '()
"Hook run before making an HTTP request.")
(defvar-local starhugger--current-request-buffer-list '())
(defun starhugger--get-api-token-as-string ()
(cond
((stringp starhugger-api-token)
starhugger-api-token)
((functionp starhugger-api-token)
(funcall starhugger-api-token))))
(cl-defun starhugger--request (prompt callback &key data headers method +parameters +options)
"CALLBACK's arguments: the response's content."
(run-hooks 'starhugger-before-request-hook)
(-let* ((data
(or data
(starhugger--json-serialize
`((inputs . ,prompt)
(parameters ,@+parameters)
(options ,@+options))))))
(dlet ((url-request-method (or method "POST"))
(url-request-data data)
(url-request-extra-headers
(or headers
`(("Content-Type" . "application/json")
,@(-some-->
(starhugger--get-api-token-as-string)
`(("Authorization" . ,(format "Bearer %s" it))))))))
(when starhugger-debug
(dlet ((starhugger--log-buffer " *starhugger sent request data"))
(starhugger--log data)))
(url-retrieve
starhugger-model-api-endpoint-url
(lambda (status)
(-let* ((content
(and url-http-end-of-headers
(buffer-substring url-http-end-of-headers (point-max)))))
(setq starhugger--last-request
(list
:response-content content
:send-data data
:response-status status))
(when (or starhugger-debug (not url-http-end-of-headers))
(starhugger--log
starhugger--last-request
:header (and url-http-end-of-headers
(buffer-substring (point-min) url-http-end-of-headers))))
(funcall callback content)))
nil t))))
(defun starhugger--record-propertize (str)
(propertize str 'face '(:foreground "yellow" :weight bold)))
(defvar starhugger--record-heading-beg "#*> ")
(cl-defun starhugger--record-generated (prompt parsed-response-list &key display parameters)
(-let* ((buf
(or (get-buffer starhugger-generated-buffer)
(prog1 (get-buffer-create starhugger-generated-buffer)
(with-current-buffer starhugger-generated-buffer
(setq-local outline-regexp
(regexp-quote starhugger--record-heading-beg))
(setq-local window-point-insertion-type t))))))
(starhugger--with-buffer-scrolling buf
(dlet ((inhibit-read-only t))
(goto-char (point-max))
(insert
(starhugger--record-propertize
(concat starhugger--record-heading-beg "INPUT to API: ")))
(insert (format "(with parameters: %s)" parameters) "\n\n")
(insert prompt)
(insert "\n\n")
(if (equal parsed-response-list '())
(insert
(starhugger--record-propertize
(concat starhugger--record-heading-beg "OUTPUT from API: None!\n")))
(-let* ((lst (ensure-list parsed-response-list)))
(--each lst
(insert
(starhugger--record-propertize
(format
"%sOUTPUT #%d/%d from API:"
starhugger--record-heading-beg (+ 1 it-index) (length lst))))
(insert "\n" it "\n\n"))))
(insert "\n \n\n")))
(when display
(save-selected-window
(pop-to-buffer buf)))
buf))
(defcustom starhugger-strip-prompt-before-insert nil
"Whether to remove the prompt in the parsed response before inserting.
Enable this when the return_full_text parameter isn't honored."
:group 'starhugger
:type 'boolean)
(defvar starhugger-stop-token nil
"Obsolete, customize `starhugger-stop-tokens' instead.")
(defcustom starhugger-chop-stop-token t
"Whether to remove `starhugger-stop-tokens' before inserting."
:group 'starhugger
:type 'boolean)
(defcustom starhugger-fill-in-the-middle t
"Enable using code from both before and after point as prompt.
Unless just before the buffer end's trailing newlines (if any),
in that case don't use fill mode. See `starhugger-fill-tokens'
for the relevant tokens."
:group 'starhugger
:type 'boolean)
(defcustom starhugger-prompt-after-point-fraction (/ 1.0 4)
"The length fraction that code after point should take in the prompt."
:group 'starhugger
:type 'float)
(defun starhugger-turn-off-completion-in-region-mode ()
"Use this when inserting parsed response.
To prevent key binding conflicts such as TAB."
(completion-in-region-mode 0))
(defvar starhugger-post-insert-hook
'(starhugger-turn-off-completion-in-region-mode)
"Hook run after inserting the parsed response.")
(defcustom starhugger-retry-temperature-range '(0.0 1.0)
"The lower and upper bound of random temperature when retrying.
A single number means just use it without generating. nil means
don't set temperature at all. Set this to a list of numbers when
the model doesn't honor use_cache = false.
To test if the model honors use_cache = false, run this twice in
the shell:
curl https://api-inference.huggingface.co/models/bigcode/starcoder \\
-X POST \\
-H \"Content-Type: application/json\" \\
-d \\='{\"options\": {\"use_cache\": false},\
\"parameters\": {\"num_return_sequences\": 2}, \"inputs\": \"ping!\"}\\='
It should return 2 different responses, each with 2
\"generated_text\"."
:group 'starhugger
:type '(list float float))
(defun starhugger--data-for-different-response ()
(if (and (listp starhugger-retry-temperature-range)
(not (seq-empty-p starhugger-retry-temperature-range)))
`((parameters
(temperature .
,(-let* (((lo hi) starhugger-retry-temperature-range))
(--> (cl-random 1.0) (* it (- hi lo)) (+ lo it))))))
`((options (use_cache . :false))
(parameters
,@(and starhugger-retry-temperature-range
`((temperature . ,starhugger-retry-temperature-range)))))))
(cl-defun starhugger--query-internal-1 (prompt callback &key +options +parameters display)
(starhugger--request
prompt
(lambda (returned)
(when returned
(-let* ((gen-texts-or-error
(condition-case err
(starhugger--get-all-generated-texts returned)
(error (message "Error: %S" err) 'error)))
(error-flag (equal gen-texts-or-error 'error)))
(starhugger--record-generated
prompt
(if error-flag
returned
gen-texts-or-error)
:display display
:parameters `((options . ,+options) (parameters . ,+parameters)))
(unless error-flag
(funcall callback gen-texts-or-error)))))
:+options +options
:+parameters +parameters))
(cl-defun starhugger--query-internal (prompt callback &rest args &key display
spin force-new num max-new-tokens
&allow-other-keys)
"CALLBACK is called with the generated text list.
PROMPT is the prompt to use. DISPLAY is whether to display the
generated text in a buffer. SPIN is whether to show a spinner.
FORCE-NEW is whether to force a new request. NUM is the number of
responses to return. ARGS are the arguments to pass to
`starhugger--request'. See `starhugger--request' for the other
arguments. See `starhugger-additional-data-alist' for additional
data to pass."
(-let* ((call-buf (current-buffer))
(spin-obj
(and spin starhugger-enable-spinner (starhugger--spinner-start)))
((&alist 'options +options 'parameters +parameters)
(and force-new (starhugger--data-for-different-response)))
((&alist 'parameters dynm-parameters 'options dynm-options)
starhugger-additional-data-alist))
(letrec ((request-buf
(starhugger--query-internal-1
prompt
(lambda (gen-texts)
(when (buffer-live-p call-buf)
(with-current-buffer call-buf
;; what if there are multiple requests in a single buffer?
(setq starhugger--current-request-buffer-list
(delete
request-buf
starhugger--current-request-buffer-list))))
(when spin-obj
(funcall spin-obj))
(funcall callback gen-texts))
:+options `(,@+options ,@dynm-options)
:+parameters `(,@(and max-new-tokens `((max_new_tokens . ,max-new-tokens)))
,@(and num `((num_return_sequences . ,num)))
,@+parameters
,@dynm-parameters)
:display display)))
(push request-buf starhugger--current-request-buffer-list)
(-let* ((proc (get-buffer-process request-buf)))
(set-process-query-on-exit-flag proc nil)
(when starhugger-debug
(set-process-plist
proc `(:prompt ,prompt :args ,args ,@(process-plist proc))))
request-buf))))
;;;; Overlay inline suggestion
(defvar-local starhugger--overlay nil)
(defface starhugger-inline-suggestion-face
'((t
:foreground "gray"
:italic t
;; override `:underline' so that the flymake (or any other on-the-fly
;; checker) errors at point won't make the suggestion unreadable because of
;; the intrusive underlines, `:extend' prevents drawn underlines after line
;; ends
:underline nil
:extend t))
"Face for suggestion overlays."
:group 'starhugger)
;; We may as well use a ring (`make-ring'), but it doesn't have a built-in way
;; to modify elements in-place
(defvar-local starhugger--suggestion-list '()
"List of recently fetched suggestions along with internal state.
Recent suggestions are added to the beginning.")
(defcustom starhugger-suggestion-list-size 32
"Maximum number of saved suggestions in current buffer.
Note that this includes all recently fetched suggestions so not
all of them are relevant all the time."
:group 'starhugger
:type 'natnum)
(defcustom starhugger-dismiss-suggestion-after-change t
"Whether to clear the overlay when text changes and not partially accepted."
:group 'starhugger
:type 'boolean)
(defvar-local starhugger--inline-inhibit-changing-overlay nil)
(defun starhugger-inlining--after-change-h (&optional _beg _end _old-len)
(when (and this-command
(not starhugger--inline-inhibit-changing-overlay)
starhugger-dismiss-suggestion-after-change)
(starhugger-dismiss-suggestion)))
(define-minor-mode starhugger-inlining-mode
"Not meant to be called normally.
When this minor mode is off, the overlay must not be shown."
:global nil
:lighter " 🌠"
:keymap `( ;
(,(kbd "<remap> <keyboard-quit>") . starhugger-dismiss-suggestion)
;;
)
(if starhugger-inlining-mode
(progn
(add-hook 'after-change-functions #'starhugger-inlining--after-change-h nil t))
(progn
(remove-hook 'after-change-functions #'starhugger-inlining--after-change-h t)
(when (overlayp starhugger--overlay)
(delete-overlay starhugger--overlay)))))
(defun starhugger--ensure-inlininng-mode (&optional off)
(if off
(when starhugger-inlining-mode
(starhugger-inlining-mode 0))
(unless starhugger-inlining-mode
(starhugger-inlining-mode))))
(defcustom starhugger-numbers-of-suggestions-to-fetch '(2 3)
"List of (natural) numbers of suggestions to fetch.
The first number is the number of suggestions to fetch when
`starhugger-trigger-suggestion' is called automatically.
The second number is the number of suggestions to fetch when
`starhugger-trigger-suggestion' is called interactively.
It can also be a single number, in which case the first number is
the same as the second number."
:group 'starhugger
:type '(choice natnum (list natnum natnum)))
(defun starhugger--current-overlay-suggestion (&optional chop-stop-token)
(-->
(overlay-get starhugger--overlay 'starhugger-ovlp-current-suggestion)
(if chop-stop-token
(s-chop-suffixes starhugger-stop-tokens it)
it)))
(defvar starhugger-at-suggestion-map (make-sparse-keymap)
"Use `starhugger-inline-menu-item' instead!
This doesn't work at the end of buffer.
Keymap used when at the beginning of suggestion overlay.")
(make-obsolete-variable 'starhugger-at-suggestion-map nil "0.1.18")
(defun starhugger--update-overlay (suggt &optional orig-pt)
"Update overlay to displayer SUGGT after ORIG-PT.
ORIG-PT defaults to current point, when supplying it with a
non-nil (numeric) value, mark SUGGT and ORIG-PT as the original
ones."
(-let* ((beg-pt (or orig-pt (point)))
(suggt*
(-->
(propertize suggt
'face 'starhugger-inline-suggestion-face
;; allow placing the cursor before the overlay when
;; 'after-string
'cursor t)
;; WORKAROUND: when the suggestions begins with a newline, the point
;; will be placed at the start of the first non-newline character,
;; therefore won't stay at the current position visually, workaround
;; this by prefixing with a space
(if (and (< 0 (length suggt)) (= ?\n (aref suggt 0)))
(concat " " it)
it))))
(overlay-put starhugger--overlay 'starhugger-ovlp-current-suggestion suggt)
(when orig-pt
(overlay-put
starhugger--overlay 'starhugger-ovlp-original-suggestion suggt)
(overlay-put
starhugger--overlay 'starhugger-ovlp-original-position orig-pt))
;; at end of buffer, 'display doesn't show anything because
;; `overlay-starr'=`overlay-end'
(if (<= (point-max) beg-pt)
(progn
(when (overlay-get starhugger--overlay 'display)
(overlay-put starhugger--overlay 'display nil))
(overlay-put starhugger--overlay 'after-string suggt*))
;; currently I can't find a way to to achieve this:
;; 〈before〉|〈overlay〉〈after〉
;; so the workaround is too concatenate "overlay" and "after" and and put
;; the overlay on "after"
(progn
(when (overlay-get starhugger--overlay 'after-string)
(overlay-put starhugger--overlay 'after-string nil))
(overlay-put
starhugger--overlay
'display
(concat suggt* (buffer-substring beg-pt (+ beg-pt 1))))))))
(defun starhugger--active-overlay-p ()
(and starhugger--overlay (overlay-buffer starhugger--overlay)))
(defun starhugger--init-overlay (suggt pt)
"Initialize over to show SUGGT and mark PT as the original position."
(when (starhugger--active-overlay-p)
(delete-overlay starhugger--overlay))
(when (<= pt (point-max))
(setq starhugger--overlay
(make-overlay pt (+ pt 1)
nil
;; allow inserting before the overlay
t t))
;; (overlay-put starhugger--overlay 'keymap starhugger-at-suggestion-map)
(overlay-put starhugger--overlay 'priority 1)
(starhugger--update-overlay suggt pt)))
(defun starhugger-at-suggestion-beg-p (&optional cmd)
"Return CMD (or true) when point is at suggestion start.
See `starhugger-inline-menu-item'."
(and starhugger-inlining-mode
(equal (overlay-start starhugger--overlay) (point))
(or cmd t)))
(defun starhugger-inline-menu-item (cmd)
"Return a CMD when only at the start of suggestion at run-time.
Use this when binding keys. See info node `(elisp) Extended Menu
Items'."
`(menu-item "" ,cmd nil :filter starhugger-at-suggestion-beg-p))
(defun starhugger--suggestion-state (&optional pt)
(if pt
(save-excursion
(goto-char pt)
(vector (point) (buffer-substring-no-properties (pos-bol) (pos-eol))))
(vector (point) (buffer-substring-no-properties (pos-bol) (pos-eol)))))
(defun starhugger--relevant-fetched-suggestions (&optional all pt)
(-let* ((cur-state (starhugger--suggestion-state pt)))
(-keep
(-lambda ((state suggt)) (and (or all (equal cur-state state)) suggt))
starhugger--suggestion-list)))
(defun starhugger--add-to-suggestion-list (suggestions state)
(dolist (suggt suggestions)
(when suggt
(-let* ((elem (list state suggt)))
(add-to-list 'starhugger--suggestion-list elem))))
(-let* ((leng1 (length starhugger--suggestion-list)))
(when (< starhugger-suggestion-list-size leng1)
(setq starhugger--suggestion-list
(ntake
starhugger-suggestion-list-size starhugger--suggestion-list)))))
(defun starhugger--ensure-suggestion-list-syntax-highlighed (&optional force)
"Ensure that fetched suggestions are syntax highlighted in current `major-mode'.
Normally only apply for unhighlighted suggestions, but FORCE
will (re-)apply for all."
(-let* ((mjmode major-mode)
(suggt-list starhugger--suggestion-list))
(if (or force
;; some suggestions are not fontified?
(-some
(-lambda ((_state str)) (null (object-intervals str))) suggt-list))
(-let* ((strings-around-alist
(save-excursion
(-->
suggt-list (-map (-lambda (([pt])) pt) it) (-uniq it)
(-map
(lambda (pt)
(goto-char pt)
(-let* (((toplv-beg . toplv-end)
(bounds-of-thing-at-point 'defun)))
(list
pt
(buffer-substring (or toplv-beg (point-min)) pt)
(buffer-substring pt (or toplv-end (point-max))))))
it))))
(fontified-lst
(with-temp-buffer
(delay-mode-hooks
(funcall mjmode))
(-map
(-lambda ((state suggt))
(-let* ((fontified-str
(cond
((and (not force) (object-intervals suggt))
suggt)
(t
(-let* (([pt _] state)
((pre suf)
(alist-get pt strings-around-alist)))
(erase-buffer)
(insert pre)
(-let* ((pt* (point)))
(insert suggt)
(insert suf)
(font-lock-ensure)
(buffer-substring
pt* (+ pt* (length suggt)))))))))
(list state fontified-str)))
suggt-list))))
(setq starhugger--suggestion-list fontified-lst))
suggt-list)))
(defun starhugger--try-show-most-recent-suggestion ()
(-let* ((pt (point))
(cur-state (starhugger--suggestion-state))
(recent-suggt
(-some
(-lambda ((state suggt)) (and (equal cur-state state) suggt))
starhugger--suggestion-list)))
(when recent-suggt
(starhugger--ensure-inlininng-mode)
(when starhugger-debug
(starhugger--log #'starhugger--try-show-most-recent-suggestion
"at" pt ":" recent-suggt))
(starhugger--init-overlay recent-suggt pt))
recent-suggt))
(defcustom starhugger-trim-spaces-around-prompt t
"Whether to trim spaces in the prompt.
Trim space before the prompt, and in fill mode, spaces after the
prompt."
:group 'starhugger :type 'boolean)
(defun starhugger--no-fill-prompt ()
(-let* ((pt-cur (point)))
(-->
(buffer-substring-no-properties
(max (- pt-cur starhugger-max-prompt-length) (point-min)) pt-cur)
(if starhugger-trim-spaces-around-prompt
(string-trim-left it)
it))))
(defun starhugger--prompt-build-components ()
(if (and starhugger-fill-in-the-middle
starhugger-fill-tokens
;; don't use fill mode when at trailing newlines
(not (looking-at-p "\n*\\'")))
(-let* ((intend-suf-len
(floor
(* starhugger-max-prompt-length
starhugger-prompt-after-point-fraction)))
(intend-pre-len (- starhugger-max-prompt-length intend-suf-len))
(avail-pre (- (point) (point-min)))
(avail-suf (- (point-max) (point)))
([pre-beg-pos suf-end-pos]
(cond
((and (> avail-pre intend-pre-len) (< avail-suf intend-suf-len))
(vector
(- (point) (- starhugger-max-prompt-length avail-suf))
(point-max)))
((and (< avail-pre intend-pre-len) (> avail-suf intend-suf-len))
(vector
(point-min)
(+ (point) (- starhugger-max-prompt-length avail-pre))))
(t
(vector
(- (point) intend-pre-len) (+ (point) intend-suf-len)))))
([pre-beg-pos suf-end-pos]
(vector
(max (point-min) pre-beg-pos) (min (point-max) suf-end-pos)))
(suf-str
(-->
(buffer-substring-no-properties (point) suf-end-pos)
(if starhugger-trim-spaces-around-prompt
(string-trim-right it)
it)))
(pre-str
(-->
(buffer-substring-no-properties pre-beg-pos (point))
(if starhugger-trim-spaces-around-prompt
(string-trim-left it)
it))))
(vector pre-str suf-str))
(vector (starhugger--no-fill-prompt) nil)))
(defcustom starhugger-enable-dumb-grep-context nil
"Whether to inject a dumb grep-based project-wide context to the prompt.
Experimental! This requires ripgrep and python3 as hard
dependencies. Also remember to reduce
`starhugger-max-prompt-length' if you enable this."
:group 'starhugger
:type 'boolean)
(declare-function starhugger-grep-context--prefix-comments
"starhugger-grep-context")
(defun starhugger--async-prompt (callback)
"CALLBACK is called with the constructed prompt."
(-let* (([pre-compon suf-compon] (starhugger--prompt-build-components))
((pre-token mid-token suf-token) starhugger-fill-tokens)
(wrapped-callback
(lambda (dumb-context)
(-let* ((prompt
(cond
(suf-compon
(concat
pre-token
dumb-context
pre-compon
mid-token
suf-compon
suf-token))
(t
(concat dumb-context pre-compon)))))
(funcall callback prompt)))))
(if starhugger-enable-dumb-grep-context
(progn
(require 'starhugger-grep-context)
(starhugger-grep-context--prefix-comments wrapped-callback))
(funcall wrapped-callback ""))))
(defun starhugger--get-from-num-or-list (num-or-list &optional idx)
(cond
((null num-or-list)
nil)
((numberp num-or-list)
num-or-list)
((numberp idx)
(elt num-or-list idx))
(idx
(elt num-or-list 1))
(t
(elt num-or-list 0))))
;;;###autoload
(cl-defun starhugger-trigger-suggestion (&key interact force-new num prompt-fn max-new-tokens)
"Show AI-powered code suggestions as overlays.
When an inline suggestion is already showing, new suggestions
will be fetched, you can switch to them by calling
`starhugger-show-next-suggestion' after fetching finishes. NUM:
number of suggestions to fetch at once (actually sequentially,
the newly fetched ones are appended silently). FORCE-NEW: try to
fetch different responses. Non-nil INTERACT: show spinner."
(interactive (list :interact t :force-new starhugger-inlining-mode))
(-let*
((num
(or num
(starhugger--get-from-num-or-list
starhugger-numbers-of-suggestions-to-fetch
interact)))
(call-buf (current-buffer))
(pt0 (point))
(state (starhugger--suggestion-state))
(prompt-fn (or prompt-fn #'starhugger--async-prompt))
(callback
(lambda (prompt)
(when (< 0 (length prompt))
(starhugger--ensure-inlininng-mode)
(letrec
((func
(lambda (fetch-time)
(starhugger--query-internal
prompt
(lambda (suggestions)
(when (buffer-live-p call-buf)
(with-current-buffer call-buf
(-let* ((suggt-1st (-first-item suggestions)))
(starhugger--add-to-suggestion-list
suggestions state)
;; only display when didn't move or interactive (in that
;; case we are explicitly waiting)
(when (or interact (= pt0 (point)))
;; ;; TODO: why is the buffer modified here?
(when (= 1 fetch-time)
(starhugger--ensure-inlininng-mode)
(starhugger--init-overlay suggt-1st pt0))
(cond
((and (< fetch-time num)
(< (length suggestions) num))
(funcall func (+ fetch-time 1)))
((not (starhugger--active-overlay-p))
(starhugger--ensure-inlininng-mode 0))))))))
:spin (or starhugger-debug interact)
:force-new (or force-new (< 1 fetch-time))
:max-new-tokens (or max-new-tokens
(starhugger--get-from-num-or-list
starhugger-max-new-tokens
interact))
:num num))))
(funcall func 1))))))
(funcall prompt-fn callback)))
(defun starhugger--triggger-suggestion-prefer-cache
(in-buffer position &optional cache-only)
(when (and (equal in-buffer (current-buffer)) (equal position (point)))
(or (starhugger--try-show-most-recent-suggestion)
(when (not cache-only)
(starhugger-trigger-suggestion
:num (starhugger--get-from-num-or-list
starhugger-numbers-of-suggestions-to-fetch
nil))))))
(defun starhugger-dismiss-suggestion (&optional stop-fetching)
"Clear current suggestion.
Non-nil STOP-FETCHING (interactively, true by default): also kill
unfinished fetches."
(interactive (list (not current-prefix-arg)))
(when stop-fetching
(dlet ((kill-buffer-query-functions '()))
(dolist (request-buf starhugger--current-request-buffer-list)
(delete-process (get-buffer-process request-buf))
(kill-buffer request-buf))))
(starhugger-inlining-mode 0))
(defcustom starhugger-trigger-suggestion-after-accepting t
"Whether to continue triggering suggestion after accepting."
:group 'starhugger
:type 'boolean)
(defun starhugger--accept-suggestion-partially (by &optional args)
"Insert a part of active suggestion by the function BY.
Accept the part that is before the point after applying BY on
ARGS. Note that BY should be `major-mode' independent (being
executed in a temporary buffer)."
(-when-let* ((pos (overlay-start starhugger--overlay)))
(dlet ((starhugger--inline-inhibit-changing-overlay t))
(goto-char pos)
(-let* ((suggt (starhugger--current-overlay-suggestion))
(suggt*
(if starhugger-chop-stop-token
(s-chop-suffixes starhugger-stop-tokens suggt)
suggt))
(text-to-insert
(with-temp-buffer
(insert suggt*)
(goto-char (point-min))
(apply by args)
(buffer-substring (point-min) (point)))))
(insert text-to-insert)
(if (equal suggt* text-to-insert)
(progn
(starhugger-dismiss-suggestion)
(and starhugger-trigger-suggestion-after-accepting
(starhugger-trigger-suggestion :interact t)))
(progn
(starhugger--update-overlay
(string-remove-prefix text-to-insert suggt))))
;; maybe put parentheses balancer here?
(run-hooks 'starhugger-post-insert-hook)
text-to-insert))))
(defun starhugger-accept-suggestion ()
"Insert the whole suggestion."
(interactive)
(starhugger--accept-suggestion-partially (lambda () (goto-char (point-max)))))
(defun starhugger-accept-suggestion-by-character (n)
"Insert N characters from the suggestion."
(interactive "p")
(starhugger--accept-suggestion-partially #'forward-char (list n)))
(defun starhugger-accept-suggestion-by-word (n)
"Insert N words from the suggestion."
(interactive "p")
(starhugger--accept-suggestion-partially #'forward-word (list n)))
(defun starhugger-accept-suggestion-by-line (n)
"Insert N lines from the suggestion."
(interactive "p")
(starhugger--accept-suggestion-partially #'forward-line (list n)))
(defun starhugger-accept-suggestion-by-paragraph (n)
"Insert N paragraphs from the suggestion."
(interactive "p")
(starhugger--accept-suggestion-partially #'forward-paragraph (list n)))
(defun starhugger-undo-accept-suggestion-partially ()
"Undo all partial acceptances and go back."
(interactive)
(-let* ((orig-point
(overlay-get starhugger--overlay 'starhugger-ovlp-original-position))
(str (buffer-substring orig-point (point))))
(dlet ((starhugger--inline-inhibit-changing-overlay t))
(delete-char (- (length str)))
(starhugger--update-overlay
(concat str (starhugger--current-overlay-suggestion))))))
(defun starhugger--get-prev-suggestion-index (delta suggestions)
(-let* ((leng (length suggestions))
(cur-idx
(-elem-index (starhugger--current-overlay-suggestion) suggestions)))
(-->
;; either `+': recent at first or `-': recent at last, depends of
;; `starhugger--suggestion-list''s ordering
(+ cur-idx delta)
;; disable wrapping
(min it (- leng 1)) (max it 0))))
(defun starhugger-show-prev-suggestion (delta)
"Show the previous suggestion.
With prefix argument DELTA, show the suggestion that is DELTA away."
(interactive "p")
(-let* ((pt (overlay-get starhugger--overlay 'starhugger-ovlp-original-position))
(suggestions (starhugger--relevant-fetched-suggestions nil pt))
(prev-idx (starhugger--get-prev-suggestion-index delta suggestions))
(suggt (elt suggestions prev-idx)))
(starhugger--update-overlay suggt pt)))