106 lines
3.9 KiB
EmacsLisp
106 lines
3.9 KiB
EmacsLisp
;;; use-package-ensure-system-package.el --- auto install system packages -*- lexical-binding: t; -*-
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;; Copyright (C) 2022-2024 Free Software Foundation, Inc.
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;; Author: Justin Talbott <justin@waymondo.com>
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;; Keywords: convenience, tools, extensions
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;; URL: https://github.com/waymondo/use-package-ensure-system-package
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;; Package-Requires: ((use-package "2.1") (system-packages "1.0.4"))
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;; Filename: use-package-ensure-system-package.el
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; The `:ensure-system-package` keyword allows you to ensure system
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;; binaries exist alongside your `use-package` declarations. Using it
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;; requires the `system-packages' package to be installed (available
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;; on GNU ELPA).
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;;
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;; See the `use-package' info manual for more information.
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;;; Code:
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(require 'use-package)
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(require 'system-packages nil t)
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(eval-when-compile
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(declare-function system-packages-get-command "system-packages"))
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(defvar use-package-ensure-system-package--custom-packages '()
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"List of commands used to install custom packages.")
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(defun use-package-ensure-system-package-consify (arg)
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"Turn ARG into a cons of the form (PACKAGE-NAME . INSTALL-COMMAND')."
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(cond
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((stringp arg)
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(cons arg `(system-packages-install ,arg)))
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((symbolp arg)
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(cons arg `(system-packages-install ,(symbol-name arg))))
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((consp arg)
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(cond
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((not (cdr arg))
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(use-package-ensure-system-package-consify (car arg)))
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((stringp (cdr arg))
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(progn
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(push (cdr arg) use-package-ensure-system-package--custom-packages)
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(cons (car arg) `(async-shell-command ,(cdr arg)))))
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(t
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(cons (car arg)
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`(system-packages-install ,(symbol-name (cdr arg)))))))))
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(defun use-package-ensure-system-package-update-custom-packages ()
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"Update custom packages (not installed by system package manager).
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Run the same commands used for installing them."
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(interactive)
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(dolist (cmd use-package-ensure-system-package--custom-packages)
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(async-shell-command cmd)))
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;;;###autoload
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(defun use-package-normalize/:ensure-system-package (_name-symbol keyword args)
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"Turn ARGS into a list of conses of the form (PACKAGE-NAME . INSTALL-COMMAND)."
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(use-package-as-one (symbol-name keyword) args
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(lambda (_label arg)
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(cond
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((and (listp arg) (listp (cdr arg)))
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(mapcar #'use-package-ensure-system-package-consify arg))
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(t
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(list (use-package-ensure-system-package-consify arg)))))))
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(defun use-package-ensure-system-package-exists? (file-or-exe)
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"If FILE-OR-EXE is a string, ensure the file path exists.
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If it is a symbol, ensure the binary exist."
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(if (stringp file-or-exe)
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(file-exists-p file-or-exe)
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(executable-find (symbol-name file-or-exe))))
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;;;###autoload
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(defun use-package-handler/:ensure-system-package (name _keyword arg rest state)
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"Execute the handler for `:ensure-system-package' keyword in `use-package'."
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(let ((body (use-package-process-keywords name rest state)))
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(use-package-concat
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(mapcar #'(lambda (cons)
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`(unless (use-package-ensure-system-package-exists? ',(car cons))
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,(cdr cons))) arg)
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body)))
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(add-to-list 'use-package-keywords :ensure-system-package t)
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(provide 'use-package-ensure-system-package)
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;;; use-package-ensure-system-package.el ends here
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