616 lines
27 KiB
EmacsLisp
616 lines
27 KiB
EmacsLisp
;;; configuration-layer.el --- Spacemacs Core File
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;;
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;; Copyright (c) 2012-2014 Sylvain Benner
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;; Copyright (c) 2014-2015 Sylvain Benner & Contributors
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;;
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;; Author: Sylvain Benner <sylvain.benner@gmail.com>
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;; URL: https://github.com/syl20bnr/spacemacs
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;;
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;; This file is not part of GNU Emacs.
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;;
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;;; License: GPLv3
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(require 'dotspacemacs)
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(require 'ht)
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(require 'package)
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(unless package--initialized
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(setq package-archives '(("ELPA" . "http://tromey.com/elpa/")
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("gnu" . "http://elpa.gnu.org/packages/")
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("melpa" . "http://melpa.org/packages/")))
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;; optimization, no need to activate all the packages so early
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(package-initialize 'noactivate)
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;; Emacs 24.3 and above ships with python.el but in some Emacs 24.3.1 packages
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;; for Ubuntu, python.el seems to be missing.
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;; This hack adds marmalade repository for this case only.
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(unless (or (package-installed-p 'python) (version< emacs-version "24.3"))
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(add-to-list 'package-archives
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'("marmalade" . "http://marmalade-repo.org/packages/")))
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(setq warning-minimum-level :error))
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(defconst configuration-layer-template-directory
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(expand-file-name (concat spacemacs-core-directory "templates/"))
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"Configuration layer templates directory.")
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(defconst configuration-layer-contrib-directory
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(expand-file-name (concat user-emacs-directory "contrib/"))
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"Spacemacs contribution layers base directory.")
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(defconst configuration-layer-private-directory
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(expand-file-name (concat user-emacs-directory "private/"))
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"Spacemacs private layers base directory.")
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(defvar configuration-layer-layers '()
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"Alist of declared configuration layers.")
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(defvar configuration-layer-paths #s(hash-table size 128 data ())
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"Hash table of layers locations. The key is a layer symbol and the value is
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the path for this layer.")
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(defvar configuration-layer-all-packages #s(hash-table size 256 data ())
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"Hash table of all declared packages in all layers where the key is a package
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symbol and the value is a list of layer symbols responsible for initializing
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and configuring the package.")
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(defvar configuration-layer-all-packages-sorted '()
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"Sorted list of all package symbols.")
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(defvar configuration-layer-all-pre-extensions #s(hash-table size 128 data ())
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"Hash table of all declared pre-extensions in all layers where the key is a
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extension symbol and the value is the layer symbols responsible for initializing
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and configuring the package.")
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(defvar configuration-layer-all-pre-extensions-sorted '()
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"Sorted list of all pre extensions symbols.")
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(defvar configuration-layer-all-post-extensions #s(hash-table size 128 data ())
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"Hash table of all declared post-extensions in all layers where the key is a
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extension symbol and the value is the layer symbols responsible for initializing
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and configuring the package.")
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(defvar configuration-layer-all-post-extensions-sorted '()
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"Sorted list of all post extensions symbols.")
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(defvar configuration-layer-contrib-categories '("usr" "lang")
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"List of strings corresponding to category names. A category is a
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sub-directory of the contribution directory.")
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(defvar configuration-layer-excluded-packages '()
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"List of all excluded packages declared at the layer level.")
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(defvar configuration-layer--loaded-files '()
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"List of loaded files.")
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(defun configuration-layer/create-layer (name)
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"Ask the user for a configuration layer name and create a layer with this
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name in the private layers directory."
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(interactive "sConfiguration layer name: ")
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(let ((layer-dir (configuration-layer//get-private-layer-dir name)))
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(cond
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((string-equal "" name)
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(message "Cannot create a configuration layer without a name."))
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((file-exists-p layer-dir)
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(message "Cannot create configuration layer \"%s\", this layer already exists."
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name))
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(t
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(make-directory layer-dir)
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(configuration-layer//copy-template "extensions")
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(configuration-layer//copy-template "packages")
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(message "Configuration layer \"%s\" successfully created." name))
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)))
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(defun configuration-layer//get-private-layer-dir (name)
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"Return an absolute path the the private configuration layer with name
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NAME."
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(concat configuration-layer-private-directory name "/"))
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(defun configuration-layer//copy-template (template)
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"Copy and replace special values of TEMPLATE to LAYER_DIR."
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(let ((src (concat configuration-layer-template-directory
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(format "%s.template" template)))
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(dest (concat (configuration-layer//get-private-layer-dir name)
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(format "%s.el" template))))
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(copy-file src dest)
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(find-file dest)
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(save-excursion
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(goto-char (point-min))
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(while (re-search-forward "NAME" nil t)
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(replace-match name t)))
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(save-buffer)))
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(defun configuration-layer//get-contrib-category-dirs ()
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"Return a list of all absolute paths to the contribution categories stored
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in `configuration-layer-contrib-categories'"
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(mapcar
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(lambda (d) (expand-file-name
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(concat configuration-layer-contrib-directory (format "%s/" d))))
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configuration-layer-contrib-categories))
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(defun configuration-layer//discover-layers ()
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"Return a hash table where the key is the layer symbol and the value is its
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path."
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(let ((cat-dirs (configuration-layer//get-contrib-category-dirs))
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(result #s(hash-table size 128 data ())))
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(ht-clear result)
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;; add spacemacs layer
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(puthash 'spacemacs (expand-file-name user-emacs-directory) result)
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(mapc (lambda (dir)
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(let ((layers (configuration-layer//discover-layers-in-dir dir)))
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(mapc (lambda (layer)
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(puthash (car layer) (cdr layer) result))
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layers)))
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(append (list configuration-layer-contrib-directory)
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cat-dirs
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dotspacemacs-configuration-layer-path
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;; load private layers at the end on purpose
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;; we asume that the user layers must have the final word
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;; on configuration choices.
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(list configuration-layer-private-directory)))
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(ht-copy result)))
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(defun configuration-layer//discover-layers-in-dir (dir)
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"Return an alist where the key is a layer symbol and the value is the path
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for that layer."
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(spacemacs/message "Looking for configuration layers in %s" dir)
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(ignore-errors
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(let ((files (directory-files dir nil nil 'nosort))
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(filter-out (append configuration-layer-contrib-categories '("." "..")))
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result '())
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(dolist (f files)
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(when (and (file-directory-p (concat dir f))
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(not (member f filter-out)))
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(spacemacs/message "-> Discovered configuration layer: %s" f)
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(push (cons (intern f) dir) result)))
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result)))
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(defun configuration-layer//declare-layer (name)
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"Declare a layer with NAME symbol. Return a cons cell (symbol . plist)
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where `symbol' is the name of the layer and `plist' is a property list with
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the following keys:
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- `:dir' the absolute path to the base directory of the layer.
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- `:ext-dir' the absolute path to the directory containing the extensions."
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(let* ((namestr (symbol-name name))
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(base-dir (configuration-layer/get-layer-path name))
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(dir (format "%s%s/" base-dir namestr))
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(ext-dir (format "%sextensions/" dir)))
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(when (and base-dir (file-exists-p dir))
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(cons name (list :dir dir :ext-dir ext-dir)))))
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(defun configuration-layer/package-declaredp (pkg)
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"Return non-nil if PKG symbol corresponds to a used package."
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(ht-contains? configuration-layer-all-packages pkg))
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(defun configuration-layer/get-layers-list ()
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"Return a list of all discovered layer symbols."
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(ht-keys configuration-layer-paths))
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(defun configuration-layer/get-layer-path (layer)
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"Return the path for LAYER symbol."
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(let ((path (ht-get configuration-layer-paths layer)))
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(unless path (spacemacs/message "Warning: Cannot find layer %s !" layer))
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path))
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(defun configuration-layer/load-layers ()
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"Load all declared layers."
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(let ((layers (reverse configuration-layer-layers)))
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(configuration-layer//load-layer-files layers '("funcs.el" "config.el"))
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;; fill the hash tables
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(setq configuration-layer-excluded-packages (configuration-layer/get-excluded-packages layers))
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(setq configuration-layer-all-packages (configuration-layer/get-packages layers))
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(setq configuration-layer-all-pre-extensions (configuration-layer/get-extensions layers t))
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(setq configuration-layer-all-post-extensions (configuration-layer/get-extensions layers))
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;; This is what you get when you have no test cases... hopefully I will code
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;; them soon :-)
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;; (message "excluded: %s" configuration-layer-excluded-packages)
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;; (message "packages: %s" configuration-layer-all-packages)
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;; (message "pre-extensions: %s" configuration-layer-all-pre-extensions)
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;; (message "post-extensions: %s" configuration-layer-all-post-extensions)
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;; filter them
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(let ((excluded (append dotspacemacs-excluded-packages
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configuration-layer-excluded-packages)))
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(configuration-layer//filter-out-excluded configuration-layer-all-packages excluded)
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(configuration-layer//filter-out-excluded configuration-layer-all-pre-extensions excluded)
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(configuration-layer//filter-out-excluded configuration-layer-all-post-extensions excluded))
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;; number of chuncks for the loading screen
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(let ((total (+ (ht-size configuration-layer-all-packages)
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(ht-size configuration-layer-all-pre-extensions)
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(ht-size configuration-layer-all-post-extensions))))
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(setq spacemacs-loading-dots-chunk-threshold
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(/ total spacemacs-loading-dots-chunk-count)))
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;; filter them
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(configuration-layer//sort-packages-and-extensions)
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;; install and initialize packages and extensions
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(configuration-layer//initialize-extensions configuration-layer-all-pre-extensions-sorted t)
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(configuration-layer//install-packages)
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(spacemacs/append-to-buffer spacemacs-loading-text)
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(configuration-layer//initialize-packages)
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(configuration-layer//initialize-extensions configuration-layer-all-post-extensions-sorted)
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;; restore warning level before initialization
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(setq warning-minimum-level :warning)
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(configuration-layer//load-layer-files layers '("keybindings.el"))))
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(defun configuration-layer//load-layer-files (layers files)
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"Load the files of list FILES for all LAYERS."
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(dolist (layer layers)
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(let* ((sym (car layer))
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(dir (plist-get (cdr layer) :dir)))
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(dolist (file files)
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(let ((file (concat dir file)))
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(if (file-exists-p file) (configuration-layer/load-file file)))))))
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(defsubst configuration-layer//add-layer-to-hash (pkg layer hash)
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"Add LAYER to the list value stored in HASH with key PKG."
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(let ((list (ht-get hash pkg)))
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(eval `(push ',layer list))
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(puthash pkg list hash)))
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(defsubst configuration-layer//filter-out-excluded (hash excluded)
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"Remove EXCLUDED packages from the hash tables HASH."
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(dolist (pkg (ht-keys (eval hash)))
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(when (or (member pkg excluded)) (ht-remove (eval hash) pkg))))
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(defun configuration-layer//sort-packages-and-extensions ()
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"Sort the packages and extensions symbol and store them in
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`configuration-layer-all-packages-sorted'
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`configuration-layer-all-pre-extensions-sorted'
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`configuration-layer-all-post-extensions-sorted'"
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(setq configuration-layer-all-packages-sorted
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(configuration-layer/sort-hash-table-keys configuration-layer-all-packages))
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(setq configuration-layer-all-pre-extensions-sorted
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(configuration-layer/sort-hash-table-keys configuration-layer-all-pre-extensions))
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(setq configuration-layer-all-post-extensions-sorted
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(configuration-layer/sort-hash-table-keys configuration-layer-all-post-extensions)))
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(defun configuration-layer/sort-hash-table-keys (h)
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"Return a sorted list of the keys in the given hash table H."
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(mapcar 'intern (sort (mapcar 'symbol-name (ht-keys h)) 'string<)))
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(defun configuration-layer/load-file (file)
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"Assure that FILE is loaded only once."
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(unless (member file configuration-layer--loaded-files)
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(load file)
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(push file configuration-layer--loaded-files)))
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(defun configuration-layer/get-excluded-packages (layers)
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"Read `layer-excluded-packages' lists for all passed LAYERS and return a list
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of all excluded packages."
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(let (result)
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(dolist (layer layers)
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(let* ((layer-sym (car layer))
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(dir (plist-get (cdr layer) :dir))
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(pkg-file (concat dir "packages.el")))
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(when (file-exists-p pkg-file)
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(configuration-layer/load-file pkg-file)
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(let ((excl-var (intern (format "%s-excluded-packages"
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(symbol-name layer-sym)))))
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(when (boundp excl-var)
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(mapc (lambda (x) (push x result)) (eval excl-var)))))))
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result))
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(defun configuration-layer//get-packages-or-extensions (layers file var)
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"Read the packages or extensions lists for all passed LAYERS and
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return a hash table of all packages where the key is a package symbol.
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FILE is a string with value `packages' or `extensions'.
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VAR is a string with value `packages', `pre-extensions' or `post-extensions'."
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(let ((result #s(hash-table size 512 data ())))
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(ht-clear result)
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(dolist (layer layers)
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(let* ((layer-sym (car layer))
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(dir (plist-get (cdr layer) :dir))
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(pkg-file (concat dir (format "%s.el" file))))
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(when (file-exists-p pkg-file)
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(configuration-layer/load-file pkg-file)
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(let* ((layer-name (symbol-name layer-sym))
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(packages-var (intern (format "%s-%s" layer-name var))))
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(when (boundp packages-var)
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(dolist (pkg (eval packages-var))
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(puthash pkg (cons layer-sym (ht-get result pkg)) result)))))))
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(ht-copy result)))
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(defun configuration-layer/get-packages (layers)
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"Read `layer-packages' lists for all passed LAYERS and return a hash table
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of all packages where the key is a package symbol."
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(configuration-layer//get-packages-or-extensions layers "packages" "packages"))
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(defun configuration-layer/get-extensions (layers &optional pre)
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"Read `layer-pre-extensions' or `layer-post-extensions' lists for all passed
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LAYERS and return a hash table of all packages where the key is a package
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symbol.
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If PRE is non nil then `layer-pre-extensions' is read instead of
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`layer-post-extensions'."
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(let ((var (if pre "pre-extensions" "post-extensions")))
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(configuration-layer//get-packages-or-extensions layers "extensions" var)))
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(defun configuration-layer//install-packages ()
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"Install the packages all the packages if there are not currently installed."
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(interactive)
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(let* ((not-installed (remove-if 'package-installed-p
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configuration-layer-all-packages-sorted))
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(not-installed-count (length not-installed)))
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;; installation
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(if not-installed
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(progn
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(spacemacs/append-to-buffer
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(format "Found %s new package(s) to install...\n"
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not-installed-count))
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(spacemacs/append-to-buffer
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"--> fetching new package repository indexes...\n")
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(redisplay)
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(package-refresh-contents)
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(setq installed-count 0)
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(dolist (pkg not-installed)
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(setq installed-count (1+ installed-count))
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(spacemacs/replace-last-line-of-buffer
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(format "--> installing %s:%s... [%s/%s]"
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(ht-get configuration-layer-all-packages pkg)
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pkg
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installed-count
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not-installed-count) t)
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(unless (package-installed-p pkg)
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(if (not (assq pkg package-archive-contents))
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(spacemacs/append-to-buffer
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(format "\nPackage %s is unavailable. Is the package name misspelled?\n"
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pkg))
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(dolist (dep (configuration-layer//get-package-dependencies-from-archive
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pkg))
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(configuration-layer//activate-package (car dep)))
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(package-install pkg)))
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(redisplay))
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(spacemacs/append-to-buffer "\n")))))
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(defun configuration-layer/update-packages ()
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"Upgrade elpa packages"
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(interactive)
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(spacemacs/append-to-buffer
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"\nUpdating Spacemacs... (for now only ELPA packages are updated)\n")
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(spacemacs/append-to-buffer
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"--> fetching new package repository indexes...\n")
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(redisplay)
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(package-refresh-contents)
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(setq upgraded-count 0)
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(dolist (pkg configuration-layer-all-packages-sorted)
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;; do not stop with errors on builtins and compilation fails
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(ignore-errors
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(let ((installed-version (configuration-layer//get-package-version pkg))
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(newest-version (configuration-layer//get-latest-package-version pkg)))
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;; (message "package - %s" pkg)
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;; (message "installed - %s" installed-version)
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;; (message "latest - %s" newest-version)
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(unless (version<= newest-version installed-version)
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(progn
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(setq upgraded-count (1+ upgraded-count))
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(spacemacs/replace-last-line-of-buffer
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(format "--> updating packge %s:%s (%s)..."
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(ht-get configuration-layer-all-packages pkg)
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pkg
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upgraded-count
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))
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(redisplay)
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(configuration-layer//package-delete pkg)
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(package-install pkg)
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)))))
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(spacemacs/append-to-buffer
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(format (concat (if (> upgraded-count 0) "\n" "")
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"--> %s packages updated.\n")
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upgraded-count))
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(redisplay))
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(defun configuration-layer//initialize-packages ()
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"Initialize all the declared packages."
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(mapc (lambda (x) (configuration-layer//initialize-package
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x (ht-get configuration-layer-all-packages x)))
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configuration-layer-all-packages-sorted))
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(defun configuration-layer//initialize-package (pkg layers)
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"Initialize the package PKG from the configuration layers LAYERS."
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(dolist (layer layers)
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(let* ((init-func (intern (format "%s/init-%s" layer pkg))))
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(spacemacs/loading-animation)
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(if (and (package-installed-p pkg) (fboundp init-func))
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(progn
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(spacemacs/message "Package: Initializing %s:%s..." layer pkg)
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(configuration-layer//activate-package pkg)
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(funcall init-func))))))
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(defun configuration-layer//activate-package (pkg)
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"Activate PKG."
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(if (version< emacs-version "24.4")
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;; fake version list to always activate the package
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(package-activate pkg '(0 0 0 0))
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(package-activate pkg)))
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(defun configuration-layer//initialize-pre-extension (ext layers)
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"Initialize the pre-extensions EXT from configuration layers LAYERS."
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(configuration-layer//initialize-extension ext layers t))
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(defun configuration-layer//initialize-extensions (ext-list &optional pre)
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"Initialize all the declared extensions in EXT-LIST hash table.
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If PRE is non nil then the extensions are pre-extensions."
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(let ((func (if pre 'configuration-layer//initialize-pre-extension
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'configuration-layer//initialize-extension))
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(hash (if pre configuration-layer-all-pre-extensions
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configuration-layer-all-post-extensions)))
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(mapc (lambda (x) (funcall func x (ht-get hash x))) ext-list)))
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(defun configuration-layer//initialize-extension (ext layers &optional pre)
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"Initialize the extension EXT from the configuration layers LAYERS.
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If PRE is non nil then the extension is a pre-extensions."
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(dolist (layer layers)
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(let* ((l (assq layer configuration-layer-layers))
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(ext-dir (plist-get (cdr l) :ext-dir))
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(init-func (intern (format "%s/init-%s" layer ext))))
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(add-to-list 'load-path (format "%s%s/" ext-dir ext))
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(spacemacs/loading-animation)
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(spacemacs/message "%s-extension: Initializing %s:%s..."
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(if pre "Pre" "Post") layer ext)
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(if (fboundp init-func) (funcall init-func)))))
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(defun configuration-layer//initialized-packages-count ()
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"Return the number of initialized packages and extensions."
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(+ (ht-size configuration-layer-all-packages)
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(ht-size configuration-layer-all-pre-extensions)
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(ht-size configuration-layer-all-post-extensions)))
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(defun configuration-layer/declare-layers ()
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"Declare default layers and user layers from the dotfile by filling the
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`configuration-layer-layers' variable."
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(setq configuration-layer-paths (configuration-layer//discover-layers))
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(push (configuration-layer//declare-layer 'spacemacs) configuration-layer-layers)
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(mapc (lambda (layer) (push layer configuration-layer-layers))
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(configuration-layer//declare-dotspacemacs-configuration-layers)))
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(defun configuration-layer//declare-dotspacemacs-configuration-layers ()
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"Declare the configuration layer in order of appearance in list
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`dotspacemacs-configuration-layers' defined in ~/.spacemacs."
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;; (message "layer paths: %s" configuration-layer-paths)
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(let (result '())
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(if (boundp 'dotspacemacs-configuration-layers)
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(dolist (layer dotspacemacs-configuration-layers)
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(push (configuration-layer//declare-layer layer) result)))
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result))
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(defun configuration-layer/get-layer-property (symlayer prop)
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"Return the value of the PROPerty for the given SYMLAYER symbol."
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(let* ((layer (assq symlayer configuration-layer-layers)))
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(plist-get (cdr layer) prop)))
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(defun configuration-layer//get-packages-dependencies ()
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"Returns a hash map where key is a dependency package symbol and value is
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a list of all packages which depend on it."
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(let ((result #s(hash-table size 200 data ())))
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(ht-clear result)
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(dolist (pkg package-alist)
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(let* ((pkg-sym (car pkg))
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(deps (configuration-layer//get-package-dependencies pkg-sym)))
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(dolist (dep deps)
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(let* ((dep-sym (car dep))
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(value (ht-get result dep-sym)))
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(puthash dep-sym
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(if value (add-to-list 'value pkg-sym) (list pkg-sym))
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result)))))
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result))
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(defun configuration-layer//get-implicit-packages ()
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"Returns a list of all packages in `packages-alist' which are not found
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in `configuration-layer-all-packages'"
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(let ((imp-pkgs))
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(dolist (pkg package-alist)
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(let ((pkg-sym (car pkg)))
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(if (not (ht-contains? configuration-layer-all-packages pkg-sym))
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(add-to-list 'imp-pkgs pkg-sym))))
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imp-pkgs))
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(defun configuration-layer//get-orphan-packages (implicit-pkgs dependencies)
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"Return a list of all orphan packages which are basically meant to be
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deleted safely."
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(let ((result '()))
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(dolist (imp-pkg implicit-pkgs)
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(if (configuration-layer//is-package-orphan imp-pkg dependencies)
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(add-to-list 'result imp-pkg)))
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result))
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(defun configuration-layer//is-package-orphan (pkg dependencies)
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"Returns not nil if PKG is an orphan package."
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(if (ht-contains? configuration-layer-all-packages pkg)
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nil
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(if (ht-contains? dependencies pkg)
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(let ((parents (ht-get dependencies pkg)))
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(reduce (lambda (x y) (and x y))
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(mapcar (lambda (p) (configuration-layer//is-package-orphan
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p dependencies))
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parents)
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:initial-value t))
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(not (ht-contains? configuration-layer-all-packages pkg)))))
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(defun configuration-layer//get-package-dependencies (package)
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"Return the dependencies alist for PACKAGE."
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(let ((pkg (assq package package-alist)))
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(cond
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((version< emacs-version "24.4") (aref (cdr pkg) 1))
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(t (package-desc-reqs (cadr pkg))))))
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(defun configuration-layer//get-package-dependencies-from-archive (pkg)
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"Return the dependencies alist for a PKG from the archive data."
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(let* ((arch (assq pkg package-archive-contents))
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(reqs (when arch (if (version< emacs-version "24.4")
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(aref (cdr arch) 1)
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(package-desc-reqs (cadr arch))))))
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;; recursively get the requirements of reqs
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(dolist (req reqs)
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(let* ((pkg2 (car req))
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(reqs2 (configuration-layer//get-package-dependencies-from-archive pkg2)))
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(when reqs2 (setq reqs (append reqs2 reqs)))))
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reqs))
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(defun configuration-layer//get-package-version (package)
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"Return the version string for PACKAGE."
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(let ((pkg (or (assq package package-alist)
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(assq package package--builtins))))
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(cond
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((version< emacs-version "24.4") (package-version-join (aref (cdr pkg) 0)))
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(t (package-version-join (package-desc-version (cadr pkg)))))))
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(defun configuration-layer//get-latest-package-version (package)
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"Return the version string for PACKAGE."
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(let ((pkg (assq package package-archive-contents)))
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(cond
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((version< emacs-version "24.4") (package-version-join (aref (cdr pkg) 0)))
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(t (package-version-join (package-desc-version (cadr pkg)))))))
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(defun configuration-layer//package-delete (package)
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"Delete the passed PACKAGE."
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(cond
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((version< emacs-version "24.4")
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(package-delete (symbol-name package)
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(configuration-layer//get-package-version package)))
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(t (package-delete (cadr (assq package package-alist))))))
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(defun configuration-layer/delete-orphan-packages ()
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"Delete all the orphan packages."
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(interactive)
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(let* ((dependencies (configuration-layer//get-packages-dependencies))
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(implicit-packages (configuration-layer//get-implicit-packages))
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(orphans (configuration-layer//get-orphan-packages implicit-packages
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dependencies))
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(orphans-count (length orphans)))
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;; (message "dependencies: %s" dependencies)
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;; (message "implicit: %s" implicit-packages)
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;; (message "orphans: %s" orphans)
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(if orphans
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(progn
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;; for the loading dot bar
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(spacemacs/append-to-buffer "OK!\n")
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(spacemacs/append-to-buffer
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(format "Found %s orphan package(s) to delete...\n"
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orphans-count))
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(setq deleted-count 0)
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(dolist (orphan orphans)
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(setq deleted-count (1+ deleted-count))
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(spacemacs/replace-last-line-of-buffer
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(format "--> deleting %s... [%s/%s]"
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orphan
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deleted-count
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orphans-count) t)
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(configuration-layer//package-delete orphan)
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(redisplay))
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(spacemacs/append-to-buffer "\n"))
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(spacemacs/message "No orphan package to delete."))))
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(defun configuration-layer/setup-after-init-hook ()
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"Add post init processing."
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(add-hook 'after-init-hook
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(lambda ()
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(spacemacs/append-to-buffer (format "%s\n" spacemacs-loading-done-text))
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;; from jwiegley
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;; https://github.com/jwiegley/dot-emacs/blob/master/init.el
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(let ((elapsed (float-time
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(time-subtract (current-time) emacs-start-time))))
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(spacemacs/append-to-buffer
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(format "[%s packages loaded in %.3fs]\n"
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(configuration-layer//initialized-packages-count)
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elapsed)))
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(spacemacs/check-for-new-version spacemacs-version-check-interval))))
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(provide 'configuration-layer)
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