109 lines
3.2 KiB
EmacsLisp
109 lines
3.2 KiB
EmacsLisp
;;; package-management.el --- Initialize package management. -*- lexical-binding: t; -*-
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;; Time-stamp: <2020-02-26T23:29:23+0100>
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;;; Commentary:
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;; * Sets up package sources and their priorities.
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;; * Sets up use-package.
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;; * Compile elisp files.
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;; * Update packages.
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;;; Code:
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(require 'package)
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(add-to-list 'package-archives
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'("melpa-stable" . "https://stable.melpa.org/packages/") t)
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(add-to-list 'package-archives
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'("melpa" . "https://melpa.org/packages/") t)
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(setq package-archive-priorities '(
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("melpa-stable" . 30)
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("gnu" . 20)
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("melpa" . 10)
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))
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;; Workaround for 26.2 <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34341>.
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(defvar gnutls-algorithm-priority "NORMAL:-VERS-TLS1.3")
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(when (< emacs-major-version 27)
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(package-initialize))
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;; Add path for custom packages.
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(add-to-list 'load-path (concat user-emacs-directory "custom-packages/"))
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;; Install use-package if necessary.
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(unless (package-installed-p 'use-package)
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(package-refresh-contents)
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(package-install 'use-package))
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(eval-when-compile
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(require 'use-package))
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;; We need `my/file-last-modification', it needs `use-package'.
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(require 'basics/global-variables)
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;; Always install packages if they are not present.
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(use-package use-package-ensure
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:ensure nil
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:custom
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(use-package-always-ensure t)
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)
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;; Autocompile files as needed.
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(use-package auto-compile
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:custom
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;; Use uncompiled file if it is newer than the compiled one.
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(load-prefer-newer t)
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:config
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(auto-compile-on-load-mode))
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;; Tool for updating the GNU ELPA keyring.
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(use-package gnu-elpa-keyring-update
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:config
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(defvar my/keyring-last-access
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(time-to-seconds
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(file-attribute-access-time
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(file-attributes gnu-elpa-keyring-update--keyring)))
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"Last access time for the GNU ELPA keyring.")
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;; Only update keyring if atime (mtime with relatime) is > 1 week ago.
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(if (> (- (time-to-seconds) my/keyring-last-access) (* 60 60 24 7))
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(gnu-elpa-keyring-update))
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)
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;; Update packages if at least 7 days have passed.
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(use-package auto-package-update
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:custom
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(auto-package-update-delete-old-versions t)
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(auto-package-update-interval 7)
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(auto-package-update-hide-results nil)
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:config
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(auto-package-update-maybe))
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;; Install Emacs packages directly from source.
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(use-package quelpa
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:demand t
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:custom ((quelpa-self-upgrade-p nil)
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(quelpa-update-melpa-p nil)
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(quelpa-checkout-melpa-p nil))
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:config
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(defvar my/quelpa-last-upgrade-file
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(concat user-emacs-directory "quelpa/last_upgrade")
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"File with the timestamp of the last quelpa upgrade.")
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(defun my/quelpa-maybe-upgrade ()
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"Upgrade quelpa packages if the last upgrade was > 7 days ago."
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(when (or (not (file-exists-p my/quelpa-last-upgrade-file))
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(> (- (time-to-seconds)
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(my/file-last-modification my/quelpa-last-upgrade-file))
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(* 60 60 24 7)))
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(quelpa-upgrade-all)
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(write-region "" nil my/quelpa-last-upgrade-file)))
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:hook (after-init . my/quelpa-maybe-upgrade)
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)
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(provide 'basics/package-management)
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;;; package-management.el ends here
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