Emacs use-package config for Codeium

codeium-config.el

  (use-package codeium
    ;; if you use straight
    :elpaca '(codeium :type git :host github :repo "Exafunction/codeium.el")
    ;; otherwise, make sure that the codeium.el file is on load-path

    :init
    ;; use globally
    (add-to-list 'completion-at-point-functions #'codeium-completion-at-point)
    ;; or on a hook
    ;; (add-hook 'python-mode-hook
    ;;     (lambda ()
    ;;         (setq-local completion-at-point-functions '(codeium-completion-at-point))))

    ;; if you want multiple completion backends, use cape (https://github.com/minad/cape):
    ;; (add-hook 'python-mode-hook
    ;;     (lambda ()
    ;;         (setq-local completion-at-point-functions
    ;;             (list (cape-super-capf #'codeium-completion-at-point #'lsp-completion-at-point)))))
    ;; an async company-backend is coming soon!

    ;; codeium-completion-at-point is autoloaded, but you can
    ;; optionally set a timer, which might speed up things as the
    ;; codeium local language server takes ~0.2s to start up
    ;; (add-hook 'emacs-startup-hook
    ;;  (lambda () (run-with-timer 0.1 nil #'codeium-init)))

    ;; :defer t ;; lazy loading, if you want
    :config
    ;; (setq use-dialog-box nil) ;; do not use popup boxes

    ;; if you don't want to use customize to save the api-key
    ;; (setq codeium/metadata/api_key "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx")

    ;; get codeium status in the modeline
    (setq codeium-mode-line-enable
          (lambda (api) (not (memq api '(CancelRequest Heartbeat AcceptCompletion)))))
    (add-to-list 'mode-line-format '(:eval (car-safe codeium-mode-line)) t)
    ;; alternatively for a more extensive mode-line
    ;; (add-to-list 'mode-line-format '(-50 "" codeium-mode-line) t)

    ;; use M-x codeium-diagnose to see apis/fields that would be sent to the local language server
    (setq codeium-api-enabled
          (lambda (api)
            (memq api '(GetCompletions Heartbeat CancelRequest GetAuthToken RegisterUser auth-redirect AcceptCompletion))))
    ;; you can also set a config for a single buffer like this:
    ;; (add-hook 'python-mode-hook
    ;;     (lambda ()
    ;;         (setq-local codeium/editor_options/tab_size 4)))

    ;; You can overwrite all the codeium configs!
    ;; for example, we recommend limiting the string sent to codeium for better performance
    (defun my-codeium/document/text ()
      (buffer-substring-no-properties (max (- (point) 3000) (point-min)) (min (+ (point) 1000) (point-max))))
    ;; if you change the text, you should also change the cursor_offset
    ;; warning: this is measured by UTF-8 encoded bytes
    (defun my-codeium/document/cursor_offset ()
      (codeium-utf8-byte-length
       (buffer-substring-no-properties (max (- (point) 3000) (point-min)) (point))))
    (setq codeium/document/text 'my-codeium/document/text)
    (setq codeium/document/cursor_offset 'my-codeium/document/cursor_offset))