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el-get.el
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;;; el-get.el --- Manage the external elisp bits and pieces you depend upon
;;
;; Copyright (C) 2010-2012 Dimitri Fontaine
;;
;; Author: Dimitri Fontaine <[email protected]>
;; URL: http://www.emacswiki.org/emacs/el-get
;; GIT: https://github.com/dimitri/el-get
;; Version: 4.1
;; Created: 2010-06-17
;; Keywords: emacs package elisp install elpa git git-svn bzr cvs svn darcs hg
;; apt-get fink pacman http http-tar emacswiki
;; Licence: WTFPL, grab your copy here: http://sam.zoy.org/wtfpl/
;;
;; This file is NOT part of GNU Emacs.
;;
;; Install
;; Please see the README.asciidoc file from the same distribution
;;; Commentary:
;;
;; Version String are now inspired by how Emacs itself numbers its version.
;; First is the major version number, then a dot, then the minor version
;; number. The minor version number is 0 when still developping the next
;; major version.
;;
;; So 2.0 is a developer release while 2.1 will be the next stable release.
;;
;; Please note that this versioning policy has been picked while backing
;; 1.2~dev, so 1.0 was a "stable" release in fact. Ah, history.
;;
;; In addition to the version, you can also get the exact git revision
;; by running M-x `el-get-self-checksum'. You should provide this
;; checksum when seeking support or reporting a bug, so that the
;; developers will know exactly which version you are using.
;;; Change Log:
;;
;; 4.1 - 2012-08-28 - To infinity, and beyond!
;;
;; - code refactoring
;; - fix dependency tracking at install and init times
;; - fix autoloading so that it happens before notifying install is done
;; - add some tests
;; - deprecate package.el from the old days, only include the Emacs24 one
;; - implement :builtin property (useful for dealing with package.el)
;; - fix recipes :build commands, must be either lists of strings or expr
;; - add support for el-get-reload and do that at update time
;; - implement :checksum property for http kinds of files
;; - Add new command el-get-reinstall
;; - implement :checkout property for git, fossil, hg, and http methods
;; - implement :shallow property for git packages
;; - add support for auto-building of ELPA recipes
;; - implement :submodule property for git packages (allow bypassing them)
;; - New package types: github, github-tar and zip, emacsmirror, fossil, etc
;; - Support for installing CVS packages through non-transparent
;; http proxy servers
;; - `el-get-update-all' now prompts before updating packages
;; - new status file format, with a cache
;; - plenty new recipes
;; - fetch emacswiki recipes at install time by default
;; - new documentation, in proper info format
;;
;; 3.1 - 2011-09-15 - Get a fix
;;
;; - support for package dependencies
;; - rely on package status for `el-get' to install and init them
;; - M-x el-get-list-packages
;; - support for :branch in git
;; - new recipes, galore
;; - bug fixes, byte compiling, windows compatibility, etc
;; - recipe files are now *.rcp rather than *.el (el still supported)
;; - el-get-user-package-directory allows to setup init-<package>.el files
;; - remove M-x el-get-sync, now obsolete
;;
;; 2.2 - 2011-05-26 - Fix the merge
;;
;; - Revert changes introduced by a merge done by mistake
;;
;; 2.1 - 2011-05-25 - Still growing, getting lazy
;;
;; - Add support for autoloads, per Dave Abrahams
;; - fix 'wait support for http (using sync retrieval)
;; - code cleanup per Dave Abrahams, lots of it
;; - add function M-x el-get-update-all
;; - Implement M-x el-get-make-recipes
;; - byte-compile at build time rather than at init time
;; - and use a "clean room" external emacs -Q for byte compiling
;; - allow to skip autoloads either globally or per-package
;; - better checks and errors for commands used when installing packages
;; - register `el-get-sources' against the custom interface
;; - el-get will now accept a list of sources to install or init
;; - open el-get-{install,init,remove,update} from `el-get-sources' only
;; - add :prepare and :post-init and :lazy, and `el-get-is-lazy'
;; - add support for :repo for ELPA packages
;;
;; 1.1 - 2010-12-20 - Nobody's testing until the release
;;
;; - Adapt to package.el from Emacs24 by using relative symlinks to ELPA
;; packages ((package-user-dir) is "~/.emacs.d/elpa" now, so needs to
;; get expanded at least)
;; - Allow to bypass byte compiling entirely with a single global var
;; - Have http local file default to something sane, not package.el
;; - Implement support for svn and darcs too
;; - Still more recipes
;; - Add support for the `pacman' package manager (ARCH Linux)
;; - Add support for mercurial
;; - (el-get 'sync) now really means synchronous, and serialized too
;; - el-get-start-process-list implements :sync, defaults to nil (async)
;; - Implement a :localname package property to help with some kind of URLs
;; - Add el-get-post-init-hooks
;; - Allow build commands to be evaluated, hence using some emacs variables
;; - Finaly walk the extra mile and remove "required" packages at install
;; - Implement support for the "Do you want to continue" apt-get prompt
;; - implement :before user defined function to run before init
;;
;; 1.0 - 2010-10-07 - Can I haz your recipes?
;;
;; - Implement el-get recipes so that el-get-sources can be a simple list
;; of symbols. Now that there's an authoritative git repository, where
;; to share the recipes is easy.
;; - Add support for emacswiki directly, save from having to enter the URL
;; - Implement package status on-disk saving so that installing over a
;; previously failed install is in theory possible. Currently `el-get'
;; will refrain from removing your package automatically, though.
;; - Fix ELPA remove method, adding a "removed" state too.
;; - Implement CVS login support.
;; - Add lots of recipes
;; - Add support for `system-type' specific build commands
;; - Byte compile files from the load-path entries or :compile files
;; - Implement support for git submodules with the command
;; `git submodule update --init --recursive`
;; - Add catch-all post-install and post-update hooks
;; - Add desktop notification on install/update.
;;
;; 0.9 - 2010-08-24 - build me a shell
;;
;; - have `el-get-build' use start-process-shell-command so that you can
;; pass-in shell commands. Beware of poor command argument "parsing"
;; though, done with a simple `split-string'.
;;
;; 0.8 - 2010-08-23 - listen to the users
;;
;; - implement :after user defined function to run at the end of init
;; - add CVS support (no login support)
;; - improve el-get-build to use async building
;; - fix el-get-update doing so
;;
;; 0.7 - 2010-08-23 - archive
;;
;; - http support is extended to `tar' archives, via the http-tar type
;;
;; 0.6 - 2010-08-12 - towards a stable version
;;
;; - fix when asynchronous http support call post-install-fun
;; - fix el-get-remove calling convention
;; - add support for bzr, thanks to Kevin Fletcher
;;
;; 0.5 - 2010-08-06 - release early, fix often
;;
;; - fix apt-get and fink install hooks to call el-get-dpkg-symlink
;; - fix elpa and http support to follow the new call convention
;; - use asynchronous url-retrieve facility so that http is async too
;;
;; 0.4 - 2010-08-04 - foxy release
;;
;; - support asynchronous processes for system commands
;; apt-get, fink, git and git-svn are run in background
;; - support `sudo' password prompts (classic and ubuntu variants)
;; - fix fink support
;; - ELPA support is an option so that you can install ELPA from el-get
;; - implement el-get-rmdir
;;; Code:
;; first some essential variables, used in other parts of the code.
(defgroup el-get nil "el-get customization group"
:group 'convenience)
(defconst el-get-version "4.0.7" "el-get version number")
(defconst el-get-script (or load-file-name buffer-file-name))
(defcustom el-get-dir "~/.emacs.d/el-get/"
"Path where to install the packages."
:group 'el-get
:type 'directory)
(defcustom el-get-status-file
(concat (file-name-as-directory el-get-dir) ".status.el")
"Define where to store and read the package statuses")
(defvar el-get-autoload-file
(concat (file-name-as-directory el-get-dir) ".loaddefs.el")
"Where generated autoloads are saved")
(defvar el-get-emacs (concat invocation-directory invocation-name)
"Where to find the currently running emacs, a facility for :build commands")
;;
;; Now load the rest of the el-get code
;;
(require 'el-get-core) ; core facilities used everywhere
(require 'el-get-custom) ; user tweaks and `el-get-sources'
(require 'el-get-methods) ; support for `el-get-methods', backends
(require 'el-get-recipes) ; support for dealing with recipes
(require 'el-get-status) ; support for dealing with status
(require 'el-get-build) ; building packages
(require 'el-get-byte-compile) ; byte compiling in a subprocess
(require 'el-get-dependencies) ; topological-sort of package dep graph
(require 'el-get-notify) ; notification support (dbus, growl...)
(require 'el-get-list-packages) ; menu and `el-get-describe' facilities
(require 'el-get-autoloads) ; manages updating el-get's loaddefs.el
;;
;; And then define some more code-level customs. They stay here so that
;; it's easier for elisp programmers to find them and know about them. If
;; that is too lame of an excuse, let's move them to el-get-custom.el.
;;
(defcustom el-get-post-init-hooks nil
"Hooks to run after a package init.
Each hook is a unary function accepting a package"
:group 'el-get
:type 'hook)
(defcustom el-get-post-install-hooks nil
"Hooks to run after installing a package.
Each hook is a unary function accepting a package"
:group 'el-get
:type 'hook)
(defcustom el-get-post-update-hooks nil
"Hooks to run after updating a package.
Each hook is a unary function accepting a package"
:group 'el-get
:type 'hook)
(defcustom el-get-post-error-hooks nil
"Hooks to run after package installation fails.
Each hook is a binay function accepting a package and error data"
:group 'el-get
:type 'hook)
(defcustom el-get-byte-compile t
"Whether or not to byte-compile packages. Can be used to
disable byte-compilation globally, unless this process is not
controlled by `el-get' itself.
The cases when `el-get' loses control are with \"advanced\"
packaging systems (apt-get, fink, pacman, elpa) or when the
recipe contains a :build rule (using a Makefile for example)."
:group 'el-get
:type 'boolean)
(defcustom el-get-verbose nil
"Non-nil means print messages describing progress of el-get even for fast operations."
:group 'el-get
:type 'boolean)
(defcustom el-get-byte-compile-at-init nil
"Whether or not to byte-compile packages at init.
Turn this to t if you happen to update your packages from under
`el-get', e.g. doing `cd el-get-dir/package && git pull`
directly."
:group 'el-get
:type 'boolean)
(defcustom el-get-generate-autoloads t
"Whether or not to generate autoloads for packages. Can be used
to disable autoloads globally."
:group 'el-get
:type 'boolean)
(defcustom el-get-is-lazy nil
"Whether or not to defer evaluation of :post-init and :after
functions until libraries are required. Will also have el-get
skip the :load and :features properties when set. See :lazy to
force their evaluation on some packages only."
:group 'el-get
:type 'boolean)
(defcustom el-get-auto-update-cached-recipes t
"When non-nil, auto-update certain properties in cached recipes.
When El-get installs a package, it stores a copy of the package's
recipe that becomes independent from the recipe in
`el-get-sources'. The cached copy is updated only when the
package itself is updated or reinstalled. However, if this
preference is t (the default), select properties of the cached
recipe copy will be updated from `el-get-sources' whenever the
package is initialized (see
`el-get-status-recipe-updatable-properties').
If this is set to nil, then the cached copy will *only* be
updated when the package itself is."
:group 'el-get
:type 'boolean)
(defvar el-get-next-packages nil
"List of packages to install next, used when dealing with dependencies.")
(defun el-get-installation-failed (package signal-data)
"Run all the failure hooks for PACKAGE and `signal' the car and cdr of SIGNAL-DATA."
(run-hook-with-args 'el-get-post-error-hooks package signal-data)
(signal (car signal-data) (cdr signal-data)))
;;
;; User Interface, Interactive part
;;
;;;###autoload
(defun el-get-version ()
"Message the current el-get version"
(interactive)
(let ((version
(if (string= (cadr (split-string el-get-version "\\.")) "0")
;; devel version, add the current git sha1 (short form)
(let ((default-directory (file-name-directory el-get-script)))
(concat el-get-version "."
(shell-command-to-string
"git --no-pager log -n1 --format=format:%h")))
el-get-version)))
(kill-new version)
(message "el-get version %s" version)))
(defun el-get-read-all-recipe-names ()
"Return the list of all known recipe names.
This is useful to use for providing completion candidates for
package names."
(mapcar 'el-get-source-name (el-get-read-all-recipes)))
(defun el-get-error-unless-package-p (package)
"Raise an error if PACKAGE does not name a package that has a valid recipe."
;; check for recipe
(let ((recipe (el-get-package-def package)))
(unless recipe
(error "el-get: package `%s' has no recipe" package))
(unless (plist-member recipe :type)
(error "el-get: package `%s' has incomplete recipe (no :type)" package))))
(defun el-get-package-is-installed (package)
"Return true if PACKAGE is installed"
(and (file-directory-p (el-get-package-directory package))
(string= "installed"
(el-get-read-package-status package))))
(defun el-get-read-package-name (action &optional filtered)
"Ask user for a package name in minibuffer, with completion.
Completions are offered from all known package names, after
removing any packages in FILTERED."
(let ((packages (el-get-read-all-recipe-names)))
(completing-read (format "%s package: " action)
(set-difference packages filtered :test 'string=) nil t)))
(defun el-get-read-recipe-name (action)
"Ask user for a recipe name, with completion from the list of known recipe files.
This function does not deal with `el-get-sources' at all."
(completing-read (format "%s recipe: " action)
(el-get-read-all-recipe-names) nil))
(defun el-get-find-recipe-file (package &optional dir)
"Find recipe file for PACKAGE.
If no recipe file exists for PACKAGE, create a new one in DIR,
which defaults to the first element in `el-get-recipe-path'."
(interactive (list (el-get-read-recipe-name "Find or create")))
(let* ((package-el (concat (el-get-as-string package) ".rcp"))
(recipe-file (or
;; If dir was specified, open or create the
;; recipe file in that directory.
(when dir (expand-file-name package-el dir))
;; Next, try to find an existing recipe file anywhere.
(el-get-recipe-filename package)
;; Lastly, create a new recipe file in the first
;; directory in `el-get-recipe-path'
(expand-file-name package-el
(car el-get-recipe-path)))))
(find-file recipe-file)))
(defun el-get-eval-after-load (package form)
"Like `eval-after-load', but first arg is an el-get package name."
(let* ((package (el-get-as-symbol package))
(source (el-get-package-def package))
(pkgname (plist-get source :pkgname))
(feats (el-get-as-list (plist-get source :features)))
(library (or (plist-get source :library)
(car feats)
pkgname
package)))
(el-get-verbose-message "Using library `%s' for `eval-after-load' for package `%s'"
library package)
(eval-after-load (el-get-as-string library) form)))
(put 'el-get-eval-after-load 'lisp-indent-function
(get 'eval-after-load 'lisp-indent-function))
(defun el-get-run-package-support (form fname package)
"`eval' FORM for PACKAGE and report about FNAME when `el-get-verbose'"
(let* (;; Auto-strip quoting from form before doing anything else
(form (if (equal (car-safe form) 'quote)
(prog1 (eval form)
(warn "The :%s form for package %s is quoted unnecessarily."
fname package))
form))
;; Allow either function (symbol or lambda) or single lisp form
(form
(cond
;; Nil means do nothing
((null form) nil)
;; A symbol is the name of a function to call
((symbolp form)
;; Convert it to a quoted call to that function
(prog1 `(,form)
(warn "The :%s form for package %s uses the old-style function form instead of a lisp form. The value should be changed from `%S' to `%S'"
fname package form `(,form))
(unless (symbol-function form)
(warn "The function %s, which is called in the :%s form for package %s, does not seem to be defined. Calling it will probably fail."
form fname package))))
;; A non-symbol function (like a lambda or something)
((functionp form)
;; Convert it to a quoted call to that function
(prog1 `(,form)
(if (and (listp form)
(equal (subseq form 0 2) '(lambda ())))
;; It's a zero-arg function, so it can be trivially
;; rewritten as a progn. Inform the user of such.
(warn "The :%s form for package %s uses the old-style lambda form instead of a lisp form. The leading \"(lambda ()\" should be replaced with \"(progn\"."
fname package)
;; Otherwise, provide a less informative warning
(warn "The :%s form for package %s uses the old-style function form instead of a lisp form."
fname package))))
;; A list is interpreted as a single lisp form to be passed
;; directly to `eval'.
((listp form) form)
;; Anything else is an error
(t (error "Unknown :%s form for package %s: `%S'"
fname package form)))))
(when form
(assert (listp form))
(el-get-verbose-message "el-get: Evaluating :%s form for package %s"
fname package)
;; don't forget to make some variables available
(let* ((pdir (el-get-package-directory package))
(default-directory pdir))
(eval form)))))
(defun el-get-lazy-run-package-support (form fname package)
"Like `el-get-run-package-support', but using `eval-after-load' to wait until PACKAGE is loaded."
(el-get-eval-after-load package
`(el-get-run-package-support ',form ',fname ',package)))
(defun el-get-init (package &optional package-status-alist)
"Make the named PACKAGE available for use, first initializing any
dependency of the PACKAGE."
(interactive (progn
(el-get-clear-status-cache)
(list (el-get-read-package-with-status "Init" "installed"))))
(el-get-verbose-message "el-get-init: %s" package)
(let* ((init-deps (el-get-dependencies (el-get-as-symbol package))))
(el-get-verbose-message "el-get-init: " init-deps)
(loop for p in init-deps do (el-get-do-init p) collect p)))
(defun el-get-do-init (package &optional package-status-alist)
"Make the named PACKAGE available for use.
Add PACKAGE's directory (or `:load-path' if specified) to the
`load-path', add any its `:info' directory to
`Info-directory-list', and `require' its `:features'. Will be
called by `el-get' (usually at startup) for each installed package."
(when el-get-auto-update-cached-recipes
(el-get-merge-properties-into-status package package-status-alist :noerror t))
(condition-case err
(let* ((el-get-sources (el-get-package-status-recipes))
(source
(el-get-read-package-status-recipe package package-status-alist))
(method (el-get-package-method source))
(loads (el-get-as-list (plist-get source :load)))
(autoloads (plist-get source :autoloads))
(feats (el-get-as-list (plist-get source :features)))
(el-path (el-get-as-list (el-get-load-path package)))
(lazy (el-get-plist-get-with-default source :lazy
el-get-is-lazy))
(prepare (plist-get source :prepare))
(before (plist-get source :before))
(postinit (plist-get source :post-init))
(after (plist-get source :after))
(pkgname (plist-get source :pkgname))
(library (or (plist-get source :library) pkgname package))
(pdir (el-get-package-directory package)))
(el-get-error-unless-required-emacs-version source)
;; a builtin package initialisation is about calling recipe and user
;; code only, no load-path nor byte-compiling support needed here.
(unless (eq method 'builtin)
;; append entries to load-path and Info-directory-list
(unless (member method '(apt-get fink pacman))
;; append entries to load-path
(dolist (path el-path)
(el-get-add-path-to-list package 'load-path path))
;; and Info-directory-list
(el-get-install-or-init-info package 'init))
(when el-get-byte-compile-at-init
;; If the package has been updated outside el-get, the .el files will be
;; out of date, so just check if we need to recompile them.
;;
;; when using el-get-update to update packages, though, there's no
;; need to byte compile at init.
(el-get-byte-compile package))
;; load any autoloads file if needed
(unless (eq autoloads t)
(dolist (file (el-get-as-list autoloads))
(el-get-load-fast file))))
;; first, the :prepare function, usually defined in the recipe
(el-get-run-package-support prepare "prepare" package)
;; now call the :before user function
(el-get-run-package-support before "before" package)
;; loads and feature are skipped when el-get-is-lazy
(unless lazy
;; loads
(dolist (file loads)
(let ((pfile (concat pdir file)))
(unless (file-exists-p pfile)
(error "el-get could not find file '%s'" pfile))
(el-get-verbose-message "el-get: load '%s'" pfile)
(el-get-load-fast pfile)))
;; features, only ELPA will handle them on its own
(unless (eq method 'elpa)
;; if a feature is provided, require it now
(dolist (feat feats)
(let ((feature (el-get-as-symbol feat)))
(el-get-verbose-message "require '%s" feature)
(require feature)))))
(let ((el-get-maybe-lazy-runsupp
(if lazy
#'el-get-lazy-run-package-support
#'el-get-run-package-support))
(maybe-lazy-eval
(if lazy
(apply-partially 'el-get-eval-after-load package)
'eval)))
(funcall el-get-maybe-lazy-runsupp
postinit "post-init" package)
(funcall maybe-lazy-eval `(el-get-load-package-user-init-file ',package))
(funcall el-get-maybe-lazy-runsupp
after "after" package)))
(debug error
(el-get-installation-failed package err)))
;; and call the global init hooks
(run-hook-with-args 'el-get-post-init-hooks package)
;; return the package
package)
(defun el-get-install (package)
"Cause the named PACKAGE to be installed after all of its
dependencies (if any).
PACKAGE may be either a string or the corresponding symbol."
(interactive (progn
(el-get-clear-status-cache)
(list (el-get-read-package-name "Install"))))
(setq el-get-next-packages (el-get-dependencies (el-get-as-symbol package)))
(el-get-verbose-message "el-get-install %s: %S" package el-get-next-packages)
(add-hook 'el-get-post-init-hooks 'el-get-install-next-packages)
;; Start the chain of dependency installation
(el-get-install-next-packages))
(defun el-get-install-next-packages (&rest ignored)
"Run as part of `el-get-post-init-hooks' when dealing with dependencies."
(let ((package (pop el-get-next-packages)))
(el-get-verbose-message "el-get-install-next-packages: %s" package)
(if package
;; el-get-do-install will either init the package, installing it
;; first only when necessary to do so
(el-get-do-install (el-get-as-string package))
;; no more packages to install in the dependency walk, clean up
(remove-hook 'el-get-post-init-hooks 'el-get-install-next-packages))))
(defun el-get-post-install-build (package)
"Function to call after building the package while installing it."
(el-get-save-package-status package "installed")
(el-get-invalidate-autoloads package) ; that will also update them
(el-get-do-init package)
(run-hook-with-args 'el-get-post-install-hooks package))
(defun el-get-post-install (package)
"Post install PACKAGE. This will get run by a sentinel."
(let* ((sync el-get-default-process-sync)
(type (el-get-package-type package))
(hooks (el-get-method type :install-hook))
(commands (el-get-build-commands package))
(checksum (plist-get (el-get-package-def package) :checksum))
(compute-checksum (el-get-method type :compute-checksum)))
;; check the checksum of the package here, as early as possible
(when (and checksum (not compute-checksum))
(error
"Checksum verification of package %s is not supported with method %s."
package type))
(when compute-checksum
(let ((computed (funcall compute-checksum package)))
(if checksum
(if (equal computed (el-get-as-string checksum))
(el-get-verbose-message "el-get: package %s passed checksum with \"%s\"."
package computed)
(error "Checksum verification failed. Required: \"%s\", actual: \"%s\"."
checksum computed))
(el-get-verbose-message "el-get: pakage %s checksum is %s."
package computed))))
;; post-install is the right place to run install-hook
(run-hook-with-args hooks package)
;; el-get-post-build will care about autoloads and initializing the
;; package, and will change the status to "installed"
(el-get-build package commands nil sync 'el-get-post-install-build)))
(defun el-get-do-install (package)
"Install any PACKAGE for which you have a recipe."
(el-get-error-unless-package-p package)
(if (el-get-package-is-installed package)
(progn
(el-get-verbose-message "el-get: `%s' package is already installed" package)
(el-get-do-init package))
(let* ((status (el-get-read-package-status package))
(source (el-get-package-def package))
(method (el-get-package-method source))
(install (el-get-method method :install))
(url (plist-get source :url))
(pdir (el-get-package-directory package)))
(el-get-error-unless-required-emacs-version source)
(cond ((string= "installed" status)
(error "Package %s is already installed." package))
((string= "required" status)
(message "Package %s previously failed to install, removing it first." package)
(el-get-remove package))
((file-exists-p pdir)
(message "Package %s has an install dir but is not known to be installed. Removing it so we can install a known version." package)
(el-get-remove package)))
;; check we can install the package and save to "required" status
(el-get-check-init)
(el-get-save-package-status package "required")
;; and install the package now, *then* message about it
(funcall install package url 'el-get-post-install)
(message "el-get install %s" package))))
(defun el-get-reload (package &optional package-status-alist)
"Reload PACKAGE."
(interactive
(progn
(el-get-clear-status-cache)
(list (el-get-read-package-with-status "Reload" "installed"))))
(el-get-verbose-message "el-get-reload: %s" package)
(el-get-with-status-sources package-status-alist
(let* ((all-features features)
(package-features (el-get-package-features package))
(package-files (el-get-package-files package))
(other-features
(remove-if (lambda (x) (memq x package-features)) all-features)))
(unwind-protect
(progn
;; We cannot let-bind `features' here, becauses the changes
;; made by `el-get-init' must persist.
(setq features other-features)
;; Reload all loaded files in package dir if they still
;; exist.
(loop for file in package-files
;; We convert errors to warnings here, because some
;; files don't like being loaded more than once in a
;; session. Example: "cedet-remove-builtin.el" from
;; CEDET.
do (condition-case e
(load file 'noerror)
(error (warn "Error while reloading file %s in package %s: %S\n\n This package may require a restart of emacs to complete the update process."
file package (cdr e)))))
;; Redo package initialization
(el-get-init package package-status-alist)
;; Reload all features provided by the package. This ensures
;; that autoloaded packages (which normally don't load
;; anything until one of their entry points is called) are
;; forced to reload immediately if they were already loaded.
(loop for f in package-features
do (require f nil 'noerror)))
;; We have to add all the removed features back in no matter
;; what, or else we would be lying about what has been loaded.
;; This covers the corner case where an updated package no
;; longer provides a certain feature. Technically that feature
;; is still provided, so not adding it back would be wrong.
(let ((missing-features
(remove-if (lambda (x) (memq x features)) package-features)))
(when missing-features
(warn "Adding %S back onto features, because the reloaded package did not provide them."
missing-features)
(setq features (append missing-features features))))))))
(defun el-get-post-update-build (package)
"Function to call after building the package while updating it."
;; fix trailing failed installs
(when (string= (el-get-read-package-status package) "required")
(el-get-save-package-status package "installed"))
(el-get-invalidate-autoloads package)
(el-get-do-init package)
(el-get-reload package)
(run-hook-with-args 'el-get-post-update-hooks package))
(defun el-get-post-update (package)
"Post update PACKAGE. This will get run by a sentinel."
(let* ((sync el-get-default-process-sync)
(type (el-get-package-type package))
(hooks (el-get-method type :update-hook))
(commands (el-get-build-commands package)))
;; post-update is the right place to run update-hook
(run-hook-with-args hooks package)
(el-get-build package commands nil sync 'el-get-post-update-build)))
(defun el-get-update-requires-reinstall (package)
"Returns true if updating PACKAGE would require a reinstall.
This happens if the cached recipe and the current one have
different install methods."
(let* ((source (el-get-package-def package))
(old-source (el-get-read-package-status-recipe package))
(method (el-get-package-method source))
(old-method (el-get-package-method old-source)))
(not (eq method old-method))))
(defun el-get-do-update (package)
"Update "
(el-get-error-unless-package-p package)
(assert (el-get-package-is-installed package) nil
"Package %s cannot be updated because it is not installed.")
(let* ((package (el-get-as-symbol package))
(source (el-get-package-def package))
(method (el-get-package-method source))
(update (el-get-method method :update))
(url (plist-get source :url)))
(assert (null (remove-if 'el-get-package-is-installed
(el-get-dependencies package)))
nil
"Dependencies of package %s should already be installed before updating"
package)
(funcall update package url 'el-get-post-update)
(message "el-get update %s" package)))
(defvar el-get-update-post-dependency-fun nil
"Helper variable for updating after dependencies are installed.
This variable exists because the function that it holds is a
dynamically-generated lambda, but it needs to be able to refer to
itself.")
(defun el-get-update (package)
"Update PACKAGE."
(interactive
(progn
(el-get-read-status-file-force)
(list (el-get-read-package-with-status "Update" "required" "installed"))))
(el-get-error-unless-package-p package)
(if (el-get-update-requires-reinstall package)
(el-get-reinstall package)
(let* ((package (el-get-as-symbol package))
(new-dependencies (remove-if 'el-get-package-is-installed
(el-get-dependencies package)))
(source (el-get-package-def package)))
(if (plist-get source :checksum)
(error "el-get: remove checksum from package %s to update it." package)
(if new-dependencies
;; Package has gained new dependencies, so we need to
;; install them before updating.
(progn
;; Prepare to install dependencies
(setq el-get-next-packages new-dependencies)
(add-hook 'el-get-post-init-hooks 'el-get-install-next-packages)
(when el-get-update-post-dependency-fun
;; Ensure previous value is removed
(remove-hook 'el-get-post-init-hooks
el-get-update-post-dependency-fun))
;; Set up hook to run the update only once after all
;; dependencies are installed, and then have the hook
;; disable itself.
(setq el-get-update-post-dependency-fun
`(lambda (&rest ignored)
(when (null el-get-next-packages)
(remove-hook 'el-get-post-init-hooks
el-get-update-post-dependency-fun)
(setq el-get-update-post-dependency-fun nil)
(el-get-do-update ',package))))
;; Add the hook at the *END* so that it runs after
;; `el-get-install-next-packages' and therefore sees the
;; empty dependency list.
(add-hook 'el-get-post-init-hooks
el-get-update-post-dependency-fun
'append)
;; Set the update process in motion
(el-get-install-next-packages))
;; update the package now
(el-get-do-update package))))))
;;;###autoload
(defun el-get-update-all (&optional no-prompt)
"Performs update of all installed packages."
(interactive)
(when (or no-prompt
(yes-or-no-p
"Do you really want to update all installed packages? "))
;; The let and flet forms here ensure that
;; `package-refresh-contents' is only called once, regardless of
;; how many ELPA-type packages need to be installed. Without this,
;; a refresh would happen for every ELPA package, which is totally
;; unnecessary when updating them all at once.
(let ((refreshed nil)
(orig-package-refresh-contents
(ignore-errors (symbol-function 'package-refresh-contents))))
(flet ((package-refresh-contents
;; This is the only way to get sane auto-indentation
(cdr (lambda (&rest args)
(unless refreshed
(apply orig-package-refresh-contents args)
(setq refreshed t))))))
;; This is the only line that really matters
(mapc 'el-get-update (el-get-list-package-names-with-status "installed"))))))
;;;###autoload
(defun el-get-self-update ()
"Update el-get itself. The standard recipe takes care of reloading the code."
(interactive)
(let ((el-get-default-process-sync t)
(el-get-dir
(expand-file-name ".." (file-name-directory el-get-script))))
(el-get-update "el-get")))
(defun el-get-post-remove (package)
"Run the post-remove hooks for PACKAGE."
(let* ((hooks (el-get-method (el-get-package-method package) :remove-hook)))
(run-hook-with-args hooks package)
(run-hook-with-args 'el-get-post-remove-hooks package)))
(defun el-get-remove (package &optional package-status-alist)
"Remove any PACKAGE that is know to be installed or required."
(interactive
(progn
(el-get-clear-status-cache)
(list (el-get-read-package-with-status "Remove" "required" "installed"))))
;; When the user didn't select any package, just bail out
(unless (string= package "")
;; If the package has a recipe saved in the status file, that will
;; be used. But if not, we still want to try to remove it, so we
;; fall back to the recipe file, and if even that doesn't provide
;; something, we use `el-get-rmdir' by default. This won't work for
;; everything, but it's better than nothing.
(let ((fallback-source
(or (ignore-errors (el-get-package-def package))
(list :name package :type 'builtin))))
(el-get-with-status-sources package-status-alist
(let* ((source (or (ignore-errors (el-get-package-def package))
fallback-source))
;; Put the fallback source into `el-get-sources' so that
;; other functions will pick it up.
(el-get-sources (cons source el-get-sources))
(method (el-get-package-method source))
(remove (el-get-method method :remove))
(url (plist-get source :url)))
;; remove the package now
(el-get-remove-autoloads package)
(funcall remove package url 'el-get-post-remove)
(el-get-save-package-status package "removed")
(message "el-get remove %s" package))))))
(defun el-get-reinstall (package)
"Remove PACKAGE and then install it again."
(interactive (list (el-get-read-package-name "Reinstall")))
(el-get-remove package)
(el-get-install package))
(defun el-get-cleanup (packages)
"Removes packages absent from the argument list
'packages. Useful, for example, when we
want to remove all packages not explicitly declared
in the user-init-file (.emacs)."
(let* ((packages-to-keep (el-get-dependencies (mapcar 'el-get-as-symbol packages)))
(packages-to-remove (set-difference (mapcar 'el-get-as-symbol
(el-get-list-package-names-with-status
"installed")) packages-to-keep)))
(mapc 'el-get-remove packages-to-remove)))
;;;###autoload
(defun el-get-cd (package)
"Open dired in the package directory."
(interactive
(list (el-get-read-package-with-status "cd to" "required" "installed")))
(el-get-error-unless-package-p package)
(dired (el-get-package-directory package)))
(defun el-get-write-recipe (source dir &optional filename)
"Given an SOURCE entry, write it to FILENAME"
(let* (;; Replace a package name with its definition
(source (if (symbolp source) (el-get-read-recipe source) source))
;; Autogenerate filename if unspecified
(filename (or filename (format "%s.rcp" (el-get-source-name source)))))
;; Filepath is dir/file
(let ((filepath (format "%s/%s" dir filename)))
(with-temp-file filepath
(insert (el-get-print-to-string source))))))
;;;###autoload
(defun el-get-make-recipes (&optional dir)
"Loop over `el-get-sources' and write a recipe file for each
entry which is not a symbol and is not already a known recipe."
(interactive "Dsave recipes in directory: ")
(let* ((all (mapcar 'el-get-source-name (el-get-read-all-recipes)))
(new (loop for r in el-get-sources
when (and (not (symbolp r))
(not (member (el-get-source-name r) all)))
collect r)))
(dolist (r new)
(message "el-get: preparing recipe file for %s" (el-get-source-name r))
(el-get-write-recipe r dir)))
(dired dir))
;;;###autoload
(defun el-get-checksum (package &optional package-status-alist)
"Compute the checksum of the given package, and put it in the kill-ring"
(interactive
(list (el-get-read-package-with-status "Checksum" "installed")))
(el-get-with-status-sources package-status-alist
(let* ((type (el-get-package-type package))
(checksum (plist-get (el-get-package-def package) :checksum))
(compute-checksum (el-get-method type :compute-checksum)))
(when (and checksum (not compute-checksum))
(error "package method %s does not support checksums" type))
(when compute-checksum
(let ((checksum (funcall compute-checksum package)))
(message "Checksum for package %s is: %s. It has been copied to the kill-ring."
package checksum)
(kill-new checksum)
checksum)))))
(defun el-get-self-checksum ()
"Compute the checksum of the running version of el-get itself.
Also put the checksum in the kill-ring."
(interactive)
(el-get-checksum 'el-get))
;;
;; User Interface, Non Interactive part
;;
(defun el-get-init-and-install (&optional packages)
"Install \"required\" packages, init \"installed\" packages.
When PACKAGES is non-nil, only process entries from this list.
Those packages from the list we don't know the status of are
considered \"required\"."
(let* ((p-s-alist (el-get-read-status-file))
(required (el-get-filter-package-alist-with-status p-s-alist "required"))
(installed (el-get-filter-package-alist-with-status p-s-alist "installed"))
(to-init (if packages
(loop for p in packages
when (member (el-get-as-string p) installed)
collect p)
(mapcar 'el-get-as-symbol installed)))
(init-deps (el-get-dependencies to-init))
(to-install (if packages
(loop for p in packages
unless (member p init-deps)
collect p)
(mapcar 'el-get-as-symbol required)))
(install-deps (el-get-dependencies to-install))
done)
(el-get-verbose-message "el-get-init-and-install: install %S" install-deps)
(el-get-verbose-message "el-get-init-and-install: init %S" init-deps)
(loop for p in install-deps do (el-get-do-install p) collect p into done)
(loop for p in init-deps do (el-get-do-init p) collect p into done)
done))
(defun el-get (&optional sync &rest packages)
"Ensure that packages have been downloaded once and init them as needed.