mirror of
https://github.com/dimitri/el-get.git
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2a74721d05
'developer' is the correct spelling.
330 lines
13 KiB
EmacsLisp
330 lines
13 KiB
EmacsLisp
;;; el-get-recipes.el --- Manage the external elisp bits and pieces you depend upon
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;;
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;; Copyright (C) 2010-2011 Dimitri Fontaine
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;;
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;; Author: Dimitri Fontaine <dim@tapoueh.org>
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;; URL: http://www.emacswiki.org/emacs/el-get
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;; GIT: https://github.com/dimitri/el-get
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;; Licence: WTFPL, grab your copy here: http://sam.zoy.org/wtfpl/
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;;
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;; This file is NOT part of GNU Emacs.
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;;
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;; Install
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;; Please see the README.md file from the same distribution
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;;; Commentary:
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;;
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;; el-get-recipes provides the API to manage the el-get recipes.
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;;
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;; el-get-core provides basic el-get API, intended for developers of el-get
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;; and its methods. See the methods directory for implementation of them.
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;;
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;;; Code:
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(require 'el-get-core)
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(require 'el-get-custom)
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(require 'el-get-byte-compile)
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(defcustom el-get-recipe-path-emacswiki
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(expand-file-name "el-get/recipes/emacswiki/" el-get-dir)
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"Define where to keep a local copy of emacswiki recipes."
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:group 'el-get
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:type 'directory)
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(defcustom el-get-recipe-path-elpa
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(expand-file-name "el-get/recipes/elpa/" el-get-dir)
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"Define where to keep a local copy of elpa recipes."
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:group 'el-get
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:type 'directory)
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(defvar el-get-recipe-path
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(list (concat (file-name-directory el-get-script) "recipes")
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el-get-recipe-path-elpa
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el-get-recipe-path-emacswiki)
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"List of directories in which to look for el-get recipes.
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Directories that contain automatically-generated recipes, such as
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`el-get-recipe-path-emacswiki' and `el-get-recipe-path-elpa',
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should be placed last in this list.
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This variable is not customizable, as it needs to be set before
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el-get is loaded, while customizations should be loaded after
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el-get, so that they can affect pacakages loaded by el-get.
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It is recommended to add new directories using code like:
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(add-to-list 'el-get-recipe-path \"~/.emacs.d/el-get-user/recipes/\")")
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(defcustom el-get-user-package-directory nil
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"Define where to look for init-pkgname.el configurations. Disabled if nil."
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:group 'el-get
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:type '(choice (const :tag "Off" nil) directory))
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(defun el-get-load-package-user-init-file (package)
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"Load the user init file for PACKAGE, called init-package.el
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and to be found in `el-get-user-package-directory'. Do nothing
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when this custom is nil.
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Will automatically compile the init file as needed and load the
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compiled version."
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(when el-get-user-package-directory
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(let* ((init-file-name (format "init-%s.el" package))
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(package-init-file
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(expand-file-name init-file-name el-get-user-package-directory))
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(file-name-no-extension (file-name-sans-extension package-init-file))
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(compiled-init-file (concat file-name-no-extension ".elc"))
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(default-directory (el-get-package-directory package)))
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(when (file-exists-p package-init-file)
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(when el-get-byte-compile
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(el-get-byte-compile-file package-init-file))
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(el-get-verbose-message "el-get: load %S" file-name-no-extension)
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(load file-name-no-extension 'noerror)))))
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(defun el-get-recipe-dirs ()
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"Return the elements of `el-get-recipe-path' that actually exist.
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Used to avoid errors when exploring the path for recipes"
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(reduce (lambda (dir result)
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(if (file-directory-p dir) (cons dir result) result))
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el-get-recipe-path :from-end t :initial-value nil))
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;; recipe files are elisp data, you can't byte-compile or eval them on their
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;; own, but having elisp indenting and colors make sense
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(eval-and-compile
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(add-to-list 'auto-mode-alist '("\\.rcp\\'" . emacs-lisp-mode)))
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;;
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;; recipes
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;;
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(defun el-get-recipe-pprint (source)
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"Pretty print a recipe definition to current buffer."
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(if (eq major-mode 'emacs-lisp-mode)
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(let ((point (point)))
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(insert "(")
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;; Standard Emacs pretty print functions don't put newlines after
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;; prop val pairs of plists, so we have to do it ourselves.
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(loop for (prop val) on source by #'cddr
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do (insert (format "%S %S\n" prop val)))
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(delete-char -1) ; delete last \n
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(insert ")\n")
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(goto-char point)
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(indent-pp-sexp 'pretty))
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(let ((temp-buffer (generate-new-buffer " *temp*")))
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(unwind-protect
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(progn
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(save-current-buffer
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(set-buffer temp-buffer)
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(emacs-lisp-mode)
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(el-get-recipe-pprint source))
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(insert-buffer-substring temp-buffer))
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(kill-buffer temp-buffer)))))
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(defun el-get-recipe-filename (package)
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"Return the name of the file that contains the recipe for PACKAGE, if any."
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(let ((package-el (concat (el-get-as-string package) ".el"))
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(package-rcp (concat (el-get-as-string package) ".rcp")))
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(loop for dir in el-get-recipe-path
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for recipe-el = (expand-file-name package-el dir)
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for recipe-rcp = (expand-file-name package-rcp dir)
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if (file-exists-p recipe-el) return recipe-el
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if (file-exists-p recipe-rcp) return recipe-rcp)))
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(defun el-get-read-recipe (package)
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"Return the source definition for PACKAGE, from the recipes."
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(let ((filename (el-get-recipe-filename package)))
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(if filename
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(el-get-read-from-file filename)
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(error "El-get can not find a recipe for package \"%s\"" package))))
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(defun el-get-all-recipe-file-names ()
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"Return the list of all file based recipe names.
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The result may have duplicates."
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(loop for dir in (el-get-recipe-dirs)
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nconc (mapcar #'file-name-base
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(directory-files dir nil "^[^.].*\.\\(rcp\\|el\\)$"))))
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(defun el-get-read-all-recipe-files ()
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"Return the list of all file based recipes, formated like `el-get-sources'.
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Only consider any given recipe only once even if present in
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multiple dirs from `el-get-recipe-path'. The first recipe found
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is the one considered."
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(let (packages)
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(loop
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for dir in (el-get-recipe-dirs)
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nconc (loop
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for recipe in (directory-files dir nil "^[^.].*\.\\(rcp\\|el\\)$")
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for filename = (concat (file-name-as-directory dir) recipe)
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for pname = (file-name-sans-extension
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(file-name-nondirectory recipe))
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for package = (el-get-as-symbol pname)
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unless (member package packages)
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do (push package packages)
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and collect (ignore-errors (el-get-read-from-file filename))))))
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(defun el-get-read-all-recipes ()
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"Return the list of all the recipes, formatted like `el-get-sources'.
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We first look in `el-get-sources' then in each directory listed
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in `el-get-recipe-path' in order."
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(let* ((s-recipes (mapcar (lambda (s) (cons (plist-get s :name) s))
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el-get-sources))
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(file-recipes (el-get-read-all-recipe-files)))
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(setq file-recipes
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(mapcar (lambda (f-recipe)
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(let* ((pkg (plist-get f-recipe :name))
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(s-recipe (assq pkg s-recipes)))
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(if (null s-recipe) f-recipe
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(setq s-recipes (assq-delete-all pkg s-recipes))
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(el-get-recipe-merge f-recipe (cdr s-recipe)))))
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file-recipes))
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(append (mapcar #'cdr s-recipes) file-recipes)))
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(defun el-get-recipe-merge (r1 r2)
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"Merge recipe R1 into R2.
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If R2 has a `:type' it completely replaces R1, otherwise, R1
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fields are the default value and R2 may override them."
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(if (plist-get r2 :type)
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r2
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(loop with merged
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for (prop val) on (append r2 r1) by 'cddr
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unless (plist-member merged prop)
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nconc (list prop val) into merged
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finally return merged)))
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(defun el-get-package-def (package)
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"Return a single `el-get-sources' entry for PACKAGE."
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(let ((source (loop for src in el-get-sources
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when (string= package (el-get-source-name src))
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return src)))
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(cond ((or (null source) (symbolp source))
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;; not in `el-get-sources', or only mentioned by name
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;; (compatibility from pre 3.1 era)
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(el-get-read-recipe package))
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((null (plist-get source :type))
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;; we got a list with no :type, that's an override plist
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(el-get-recipe-merge (el-get-read-recipe package) source))
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;; none of the previous, must be a full definition
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(t source))))
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(defun el-get-package-method (package-or-source)
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"Return the :type property (called method) of PACKAGE-OR-SOURCE.
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If the package is built in to the current major version of Emacs,
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return 'builtin."
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(let* ((def (if (or (symbolp package-or-source) (stringp package-or-source))
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(el-get-package-def package-or-source)
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package-or-source))
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(builtin (plist-get def :builtin)))
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(when (integerp builtin)
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(warn "Integer argument for :builtin is obsolete. Use strings instead.")
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(setq builtin (number-to-string builtin)))
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(if (and builtin (version<= builtin emacs-version))
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'builtin
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(plist-get def :type))))
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(defalias 'el-get-package-type #'el-get-package-method)
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(defun el-get-package-types-alist (statuses &rest types)
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"Return an alist of package names that are of given TYPES.
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Only consider packages whose status is `member' of STATUSES,
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which defaults to installed, required and removed. Example:
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(el-get-package-types-alist \"installed\" 'http 'cvs)"
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(loop for src in (apply 'el-get-list-package-names-with-status
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(cond ((stringp statuses) (list statuses))
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((null statuses) '("installed" "required"
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"removed"))
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(t statuses)))
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for name = (el-get-as-symbol src)
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for type = (el-get-package-type name)
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when (or (null types) (memq 'all types) (memq type types))
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collect (cons name type)))
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(defun el-get-package-required-emacs-version (package-or-source)
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(let* ((def (if (or (symbolp package-or-source) (stringp package-or-source))
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(el-get-package-def package-or-source)
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package-or-source)))
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(el-get-plist-get-with-default
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def :minimum-emacs-version
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0)))
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(defun el-get-package-effective-library (package-or-source)
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"Return the effective :library of PACKAGE-OR-SOURCE.
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See `el-get-sources' for details."
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(let* ((source (if (or (symbolp package-or-source) (stringp package-or-source))
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(el-get-package-def package-or-source)
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package-or-source))
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(package (if (or (symbolp package-or-source) (stringp package-or-source))
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(el-get-as-symbol package-or-source)
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(plist-get source :name)))
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(pkgname (plist-get source :pkgname))
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(feats (el-get-as-list (plist-get source :features))))
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(or (plist-get source :library)
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(car feats)
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(if (memq (el-get-package-method source)
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'(github emacsmirror github-tar github-zip))
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(cdr (el-get-github-parse-user-and-repo package))
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pkgname)
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package)))
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(defun el-get-version-to-list (version)
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"Convert VERSION to a standard version list.
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Like the builtin `version-to-list', this function accepts a
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string. Unlike the builtin, it will also accept a single number,
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which will be wrapped into a single-element list, or a or a list
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of numbers, which will be returned unmodified."
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(cond
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;; String
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((stringp version)
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(version-to-list version))
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;; Single number
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((numberp version)
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(list version))
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;; List of numbers
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((and (listp version)
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(null (remove-if 'numberp version)))
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version)
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(t (error "Unrecognized version specification: %S" version))))
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(defun el-get-error-unless-required-emacs-version (package-or-source)
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"Raise an error if `emacs-major-version' is less than package's requirement."
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(let* ((pname (el-get-source-name package-or-source))
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(required-version (el-get-package-required-emacs-version
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package-or-source))
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(required-version-list (el-get-version-to-list required-version)))
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(when (version-list-< (version-to-list emacs-version) required-version-list)
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(error "Package %s requires Emacs version %s or higher, but the current\
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Emacs is only version %s"
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pname required-version emacs-version))))
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(defun el-get-envpath-prepend (envname head)
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"Prepend HEAD in colon-separated environment variable ENVNAME.
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This is effectively the same as doing the following in shell:
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export ENVNAME=HEAD:$ENVNAME
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Use this to modify environment variable such as $PATH or $PYTHONPATH."
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(setenv envname (el-get-envpath-prepend-1 (getenv envname) head)))
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(defun el-get-envpath-prepend-1 (paths head)
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"Return \"HEAD:PATHS\" omitting duplicates in it."
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(let ((pplist (split-string (or paths "") path-separator 'omit-nulls)))
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(mapconcat 'identity
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(remove-duplicates (cons head pplist)
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:test #'string= :from-end t)
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path-separator)))
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(provide 'el-get-recipes)
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;;; el-get-recipes.el ends here
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