372 lines
16 KiB
EmacsLisp
372 lines
16 KiB
EmacsLisp
;; Spacemacs Contribution System
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(require 'package)
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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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(package-initialize)
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(setq warning-minimum-level :error)
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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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(load (concat spacemacs-core-directory "ht.el"))
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(defconst spacemacs-dotspacemacs-version "1.0"
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"Minimum Version exepected for ~/.spacemacs file.")
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(defvar spacemacs-config-layers '()
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"Alist of configuration layers with the form (symbol . plist) where
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SYMBOL is the name of the layer and PLIST is a property list with the following
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keys:
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:contrib if t then the layer is a contribution layer.
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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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")
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(defvar spacemacs-all-packages #s(hash-table size 200 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 the layer symbol where to initialize the package.")
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(defvar spacemacs-all-pre-extensions #s(hash-table size 64 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 symbol where to load and
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initialize the extension.")
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(defvar spacemacs-all-post-extensions #s(hash-table size 64 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 symbol where to load and
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initialize the extension.")
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(defvar spacemacs-contrib-layer-paths #s(hash-table size 128 data ())
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"Hash table of layers locations where the key is a layer symbol and the value
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is its path.")
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(defvar dotspacemacs-configuration-layer-path '()
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"List of additional paths where to look for configuration layers.
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Paths must have a trailing slash (ie. `~/.mycontribs/')"
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)
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(defvar dotspacemacs-configuration-layers '()
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"list of contribution to load."
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)
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(defvar dotspacemacs-fullscreen-at-startup nil
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"If non nil the frame is maximized when Emacs starts up (Emacs 24.4+ only).")
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(defvar dotspacemacs-default-package-repository 'melpa-stable
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"The default package repository used if no explicit repository has been
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specified with an installed package.
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NOT USED FOR NOW :-)"
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)
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(defvar dotspacemacs-excluded-packages '()
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"A list of packages and/or extensions that will not be install and loaded.")
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(defun contribsys/dotfile-location ()
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"Return the absolute path to the spacemacs dotfile."
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(concat user-home-directory ".spacemacs"))
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(defun contribsys/load-dotfile ()
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"Load ~/.spacemacs. If it is not found then copy .spacemacs.template to
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~/.spacemacs"
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(let ((dotfile (contribsys/dotfile-location)))
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(if (file-exists-p dotfile) (load dotfile))))
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(defmacro contribsys/call-dotfile-func (func)
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"Call the function from the dotfile only if it is bound."
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`(if (fboundp ',func) (,func)))
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(defun contribsys/declare-layer (sym &optional contrib)
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"Declare a layer with SYM name (symbol). If CONTRIB is non nil then the layer
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is a contribution layer."
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(let* ((sym-name (symbol-name sym))
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(base-dir (if contrib
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(ht-get spacemacs-contrib-layer-paths sym)
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user-emacs-directory))
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(dir (format "%s%s/" base-dir sym-name))
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(ext-dir (format "%sextensions/" dir)))
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(push (cons sym (list :contrib contrib :dir dir :ext-dir ext-dir))
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spacemacs-config-layers)))
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(defun contribsys/discover-contrib-layers ()
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"Fill the hash table `spacemacs-contrib-layer-paths' where the key is the
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layer symbol and the value is its path."
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(mapc 'contribsys/discover-contrib-layers-in-dir
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(cons spacemacs-contrib-config-directory
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dotspacemacs-configuration-layer-path)))
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(defun contribsys/discover-contrib-layers-in-dir (dir)
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"Fill the hash table `spacemacs-contrib-layer-paths' where the key is the
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layer symbol and the value is its path for all layers found in directory DIR."
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(message "Looking for contribution 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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(dolist (f files)
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(if (and (file-directory-p (concat dir f))
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(not (member f '("." ".."))))
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(progn
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(message "-> Discovered contribution layer: %s" f)
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(puthash (intern f) dir spacemacs-contrib-layer-paths)))))))
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(defun contribsys/load-layers ()
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"Load all declared layers."
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(contribsys/load-layer-files '("funcs.el" "config.el"))
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(contribsys/read-packages-and-extensions)
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(contribsys/initialize-extensions spacemacs-all-pre-extensions)
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(contribsys/install-packages)
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(spacemacs/append-to-buffer spacemacs-loading-text)
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(contribsys/initialize-packages)
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(contribsys/initialize-extensions spacemacs-all-post-extensions)
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(contribsys/load-layer-files '("keybindings.el")))
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(defun contribsys/load-layer-files (files)
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"Load the files of list FILES from all declared layers."
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(dolist (layer (reverse spacemacs-config-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)
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(load file)))))))
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(defun contribsys/read-packages-and-extensions ()
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"Load all packages and extensions declared in all layers and fill the
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corresponding hash tables:
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spacemacs-all-packages
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spacemacs-all-pre-extensions
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spacemacs-all-post-extensions
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By using a hash table we ensure that *only one layer* is responsible for the
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initialization of a package or extensions (as well as the loading in case of
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extension), the winner layer is the last layer to declare the package or
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extension.
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"
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(dolist (layer (reverse spacemacs-config-layers))
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(let* ((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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(ext-file (concat dir "extensions.el")))
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(progn
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;; packages
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(unless (not (file-exists-p pkg-file))
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(load pkg-file)
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(dolist (pkg (eval (intern (format "%s-packages" (symbol-name sym)))))
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(unless (member pkg dotspacemacs-excluded-packages)
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(puthash pkg sym spacemacs-all-packages))))
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;; extensions
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(unless (not (file-exists-p ext-file))
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(load ext-file)
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(dolist (pkg (eval (intern (format "%s-pre-extensions"
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(symbol-name sym)))))
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(unless (member pkg dotspacemacs-excluded-packages)
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(puthash pkg sym spacemacs-all-pre-extensions)))
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(dolist (pkg (eval (intern (format "%s-post-extensions"
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(symbol-name sym)))))
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(unless (member pkg dotspacemacs-excluded-packages)
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(puthash pkg sym spacemacs-all-post-extensions)))))))
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;; number of chuncks for the loading screen
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(let ((total (+ (ht-size spacemacs-all-packages)
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(ht-size spacemacs-all-pre-extensions)
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(ht-size spacemacs-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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(defun contribsys/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* ((pkg-list (ht-keys spacemacs-all-packages))
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(sorted-pkg-list (mapcar 'intern
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(sort (mapcar 'symbol-name pkg-list)
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'string<)))
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(not-installed (remove-if 'package-installed-p sorted-pkg-list))
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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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(when (not (package-installed-p pkg))
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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 spacemacs-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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(package-install pkg))
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(redisplay))
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(spacemacs/append-to-buffer "\n")))))
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(defun contribsys/initialize-packages ()
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"Initialize all the declared packages."
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(ht-each 'contribsys/initialize-package spacemacs-all-packages))
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(defun contribsys/initialize-package (pkg lsym)
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"Initialize the package PKG from the configuration layer LSYM."
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(let* ((layer (assq lsym spacemacs-config-layers))
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(init-func (intern (format "%s/init-%s" (symbol-name lsym) 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 (message "(Spacemacs) Initializing %s:%s..."
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(symbol-name lsym) pkg)
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(funcall init-func)))))
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(defun contribsys/initialize-extensions (ext-list)
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"Initialize all the declared extensions in EXT-LIST hash table."
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(ht-each 'contribsys/initialize-extension ext-list))
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(defun contribsys/initialize-extension (ext lsym)
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"Initialize the extension EXT from the configuration layer LSYM."
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(let* ((layer (assq lsym spacemacs-config-layers))
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(ext-dir (plist-get (cdr layer) :ext-dir))
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(init-func (intern (format "%s/init-%s" (symbol-name lsym) 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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(message "(Spacemacs) Initializing %s:%s..." (symbol-name lsym) ext)
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(if (fboundp init-func) (funcall init-func))))
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(defun contribsys/initialized-packages-count ()
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"Return the number of initialized packages and extensions."
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(+ (ht-size spacemacs-all-packages)
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(ht-size spacemacs-all-pre-extensions)
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(ht-size spacemacs-all-post-extensions)))
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(defun contribsys/declare-user-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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(if (boundp 'dotspacemacs-configuration-layers)
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(dolist (layer dotspacemacs-configuration-layers)
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(contribsys/declare-layer layer t))))
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(defun contribsys/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 spacemacs-config-layers)))
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(plist-get (cdr layer) prop)))
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(defun contribsys/load-package-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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(dolist (pkg package-alist)
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(let* ((pkg-sym (car pkg))
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(deps (contribsys/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 contribsys/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 `spacemacs-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? spacemacs-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 contribsys/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. Orphan packages are packages whose all dependent packages
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are not in `spacemacs-all-packages' (explicit packages)"
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(let ((result '()))
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(dolist (imp-pkg implicit-pkgs)
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(setq result (append result (contribsys//get-orphan-packages2
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imp-pkg dependencies '()))))
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(delete-dups result)))
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(defun contribsys//get-orphan-packages2 (pkg dependencies acc)
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"Reccursive function to get the orphans packages as well as their
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orphan dependencies."
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(if (and (ht-contains? dependencies pkg)
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(not (ht-contains? spacemacs-all-packages pkg)))
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(dolist (parent (ht-get dependencies pkg))
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(let ((orphans (contribsys//get-orphan-packages2
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parent dependencies acc)))
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(unless (not orphans)
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(add-to-list 'acc pkg)
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(if acc (setq acc (append acc orphans))
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(setq acc orphans)))))
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(unless (ht-contains? spacemacs-all-packages pkg)
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(if acc (add-to-list 'acc pkg) (setq acc (list pkg)))))
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acc)
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(defun contribsys/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 contribsys/get-package-version (package)
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"Return the version string 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")
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(package-version-join (aref (cdr pkg) 0)))
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(t
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(package-version-join (package-desc-version (cadr pkg)))))))
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(defun contribsys/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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(contribsys/get-package-version package)))
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(t
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(package-delete (cadr (assq package package-alist))))))
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(defun contribsys/delete-orphan-packages ()
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"Delete all the orphan packages."
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(interactive)
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(let* ((dependencies (contribsys/load-package-dependencies))
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(implicit-packages (contribsys/get-implicit-packages))
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(orphans (contribsys/get-orphan-packages implicit-packages
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dependencies))
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(orphans-count (length 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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(contribsys/package-delete orphan)
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(redisplay))
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(spacemacs/append-to-buffer "\n"))
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(message "No orphan package to delete."))))
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(defun contribsys/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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(contribsys/initialized-packages-count)
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elapsed))))))
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