tvl-depot/configs/shared/emacs/.emacs.d/elpa/nix-mode-20180908.2240/nix-search.el

65 lines
1.8 KiB
EmacsLisp
Raw Normal View History

;;; nix-search.el -- run nix commands in Emacs -*- lexical-binding: t -*-
;; Author: Matthew Bauer <mjbauer95@gmail.com>
;; Homepage: https://github.com/NixOS/nix-mode
;; Keywords: nix
;; This file is NOT part of GNU Emacs.
;;; Commentary:
;;; Code:
(require 'nix)
(require 'nix-instantiate)
(require 'nix-shell)
(require 'json)
;;;###autoload
(defun nix-search (&optional search file)
"Run nix search.
SEARCH a search term to use.
FILE a Nix expression to search in."
(interactive)
(unless search (setq search ""))
(unless file (nix-read-file))
(let ((stdout (generate-new-buffer "nix search"))
result)
(call-process nix-executable nil (list stdout nil) nil
"search" "--json" "-f" file search)
(with-current-buffer stdout
(when (eq (buffer-size) 0)
(error "Error: nix search %s failed to produce any output" search))
(goto-char (point-min))
(setq result (json-read)))
(kill-buffer stdout)
(when (called-interactively-p 'any)
(let ((display (generate-new-buffer "*nix search*")))
(with-current-buffer display
(dolist (entry result)
(widget-insert
(format "attr: %s\nname: %s\nversion: %s\ndescription: %s\n\n"
(car entry)
(alist-get 'pkgName (cdr entry))
(alist-get 'version (cdr entry))
(alist-get 'description (cdr entry)))))
)
(display-buffer display 'display-buffer-pop-up-window)))
(kill-buffer stdout)
result))
(defun nix-search-read-attr (file)
"Read from a list of attributes.
FILE the nix file to look in."
(let ((collection
(sort (mapcar (lambda (x) (symbol-name (car x)))
(nix-search "" file))
'string<))
(read (cond ((fboundp 'ivy-read) 'ivy-read)
(t 'completing-read))))
(funcall read "Attribute: " collection)))
(provide 'nix-search)
;;; nix-search.el ends here