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elpaca.el
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;;; elpaca.el --- An elisp package manager -*- lexical-binding: t; -*-
;; Copyright (C) 2022-2025 Nicholas Vollmer
;; Author: Nicholas Vollmer
;; URL: https://github.com/progfolio/elpaca
;; Created: Jan 1, 2022
;; Keywords: tools, convenience, lisp
;; Package-Requires: ((emacs "27.1"))
;; Version: 0.0.2
;; This file is not part of GNU Emacs.
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(eval-and-compile (require 'cl-lib))
(eval-when-compile (require 'subr-x))
(cl-declaim (optimize (safety 0) (speed 3)))
(require 'elpaca-process)
(declare-function autoload-rubric "autoload")
(declare-function info-initialize "info")
(declare-function url-filename "url-parse")
(defvar autoload-timestamps)
(defvar generated-autoload-file)
(defvar Info-directory-list)
(defconst elpaca--inactive-states '(blocked finished failed))
(defvar elpaca-installer-version -1)
(or noninteractive (= elpaca-installer-version 0.11)
(lwarn '(elpaca installer) :warning "%s installer version does not match %s."
(or (symbol-file 'elpaca-installer-version 'defvar) "Init")
(expand-file-name "./doc/installer.el" (file-name-directory (or load-file-name (buffer-file-name))))))
(or (executable-find "git") (error "Elpaca unable to find git executable"))
(and (not after-init-time) load-file-name (featurep 'package) (warn "Package.el loaded before Elpaca"))
(defgroup elpaca nil "An elisp package manager." :group 'applications :prefix "elpaca-")
(defface elpaca-finished '((t (:inherit success))) "Indicates an order is finished.")
(defface elpaca-busy '((t (:inherit warning :inverse-video t)))
"Indicates order's subprocess has not produced output in `elpaca-busy-interval'.")
(defface elpaca-blocked '((t (:inherit warning))) "Indicates an order is blocked.")
(defface elpaca-failed '((t (:inherit error))) "Indicates an order has failed.")
(defcustom elpaca-status-faces '((blocked . elpaca-blocked)
(finished . elpaca-finished)
(failed . elpaca-failed)
(busy . elpaca-busy))
"Alist mapping order statuses to faces."
:type '(alist :key-type symbol :options (blocked finished failed busy) :value-type face))
(defvar elpaca--pre-built-steps
'(elpaca--queue-dependencies elpaca--add-info-path elpaca--activate-package)
"List of steps for packages which are already built.")
(defvar elpaca-after-init-time nil "`current-time' after processing all queues.")
(defcustom elpaca-after-init-hook nil
"Elpaca's analogue to `after-init-hook'.
This is run after all orders queued during init have finished processing.
It is only run once after init.
Note a blocked process will prevent this hook from being run."
:type 'hook)
(defcustom elpaca-post-queue-hook nil
"Hook run after a queue is finished processing.
Note blocked or failed orders will prevent this hook from being run."
:type 'hook)
(defcustom elpaca-queue-limit nil
"When non-nil, limit the number of orders which can be processed at once."
:type 'integer)
(defcustom elpaca-cache-autoloads t
"If non-nil, cache package autoloads and load all at once.
Results in faster start-up time." :type 'boolean)
(defcustom elpaca-directory (expand-file-name "elpaca" user-emacs-directory)
"Location of the elpaca package store." :type 'directory)
(defvar elpaca-cache-directory (expand-file-name "cache" elpaca-directory)
"Location of the cache directory.")
(defvar elpaca-builds-directory (expand-file-name "builds" elpaca-directory)
"Location of the builds directory.")
(defvar elpaca-repos-directory (expand-file-name "repos" elpaca-directory)
"Location of the repos directory.")
(defcustom elpaca-makeinfo-executable (executable-find "makeinfo")
"Path of the makeinfo executable." :type '(file :must-match t))
(defcustom elpaca-install-info-executable (executable-find "install-info")
"Path of the install-info executable." :type '(file :must-match t))
(defvar elpaca--log-timer nil "Timer to debounce order info printing.")
(defcustom elpaca-log-interval 0.02
"Number of idle seconds to wait before updating log buffer.
Setting this to too low may cause the status buffer to block more.
Setting it too high causes prints fewer status updates."
:type 'number)
(defcustom elpaca-busy-interval 60
"Seconds to wait between subprocess outputs before declaring process blocked."
:type 'number)
(defcustom elpaca-build-steps '(elpaca--clone
elpaca--configure-remotes
elpaca--checkout-ref
elpaca--run-pre-build-commands
elpaca--queue-dependencies
elpaca--check-version
elpaca--link-build-files
elpaca--generate-autoloads-async
elpaca--byte-compile
elpaca--compile-info
elpaca--install-info
elpaca--add-info-path
elpaca--run-post-build-commands
elpaca--activate-package)
"List of steps which are run when installing/building a package."
:type '(repeat function))
(defvar elpaca--debug-init init-file-debug "Preserves --debug-init option.")
(defvar elpaca-default-files-directive
'("*.el" "*.el.in" "dir" "*.info" "*.texi" "*.texinfo"
"doc/dir" "doc/*.info" "doc/*.texi" "doc/*.texinfo" "lisp/*.el"
"docs/dir" "docs/*.info" "docs/*.texi" "docs/*.texinfo"
(:exclude ".dir-locals.el" "test.el" "tests.el" "*-test.el" "*-tests.el" "LICENSE"
"README*" "*-pkg.el"))
"Default value for the `:files' directive in recipes.
It is also spliced in at any point where the `:defaults' keyword
is used in a `:files' directive.")
(defvar elpaca-order-defaults (list :protocol 'https :inherit t :depth 'treeless)
"Default order modifications.")
(defun elpaca-order-defaults (_order) "Return order defaults." elpaca-order-defaults)
(defcustom elpaca-order-functions '(elpaca-order-defaults)
"Abnormal hook run to alter orders.
Each element must be a unary function which accepts an order.
An order may be nil, a symbol naming a package, or a plist.
The function may return nil or a plist to be merged with the order.
This hook is run via `run-hook-with-args-until-success'."
:type 'hook)
(defcustom elpaca-recipe-functions nil
"Abnormal hook run to alter recipes.
Each element must be a unary function which accepts an recipe plist.
The function may return nil or a plist to be merged with the recipe.
This hook is run via `run-hook-with-args-until-success'."
:type 'hook)
(defsubst elpaca-alist-get (key alist &optional default)
"Return KEY's value in ALIST or DEFAULT.
Simplified, faster version of `alist-get'."
(or (cdr (assq key alist)) default))
(defvar elpaca-menu-extensions--cache nil "Cache for `elpaca-menu-extenions' items.")
(defun elpaca-menu-extensions (request &optional item)
"Return menu ITEM REQUEST."
(if-let* (((eq request 'index))
(cache (or elpaca-menu-extensions--cache (elpaca-menu-extensions 'update))))
(if item (elpaca-alist-get item cache) cache)
(setq elpaca-menu-extensions--cache
(list (cons 'elpaca-use-package
(list :source "Elpaca extensions"
:description "Elpaca use-package support."
:recipe (list :package "elpaca-use-package" :wait t
:repo "https://github.com/progfolio/elpaca.git"
:files '("extensions/elpaca-use-package.el")
:main "extensions/elpaca-use-package.el"
:build '(:not elpaca--compile-info))))))))
(defcustom elpaca-menu-functions
'( elpaca-menu-lock-file elpaca-menu-extensions elpaca-menu-org elpaca-menu-melpa
elpaca-menu-non-gnu-elpa elpaca-menu-gnu-elpa elpaca-menu-declarations)
"Abnormal hook to lookup packages in menus.
Each function is passed a request, which may be any of the following symbols:
- `index`
Must return a alist of the menu's package candidates.
Each candidate is a cell of form:
(PACKAGE-NAME . (:source SOURCE-NAME :recipe RECIPE-PLIST))
- `update`
Updates the menu's package candidate list.
Each function must also accept an optional ITEM as a second argument."
;;@TODO: document ITEM spec requirements
:type 'hook)
(defcustom elpaca-verbosity 0 "Maximum event verbosity level shown in logs."
:type 'integer)
(defcustom elpaca-default-remote-name "origin" "Default remote name." :type 'string)
;;@COMPAT @HACK:
;;Transient not in `package--builtin-versions' from addition in 28.1 until Emacs 30.
(when-let* (((< 27 emacs-major-version 30))
(transient-versions '(("28.1" . (0 3 7)) ("28.2" . (0 3 7))
("29.1" . (0 4 1)) ("29.2" . (0 4 3))
("29.3" . (0 4 3)) ("29.4" . (0 4 3)))))
(add-to-list 'package--builtin-versions
(cons 'transient (alist-get emacs-version transient-versions
nil nil #'string-prefix-p))))
(defcustom elpaca-ignored-dependencies (mapcar #'car package--builtin-versions)
"List of IDs which are not installed unless the user explicitly requests them."
:type '(repeat symbol))
(defvar elpaca-overriding-prompt nil "Overriding prompt for interactive functions.")
(defun elpaca--read-file (path)
"Read file at PATH into memory."
(when-let* (((file-exists-p path))
(dir default-directory))
(condition-case-unless-debug err
(with-current-buffer (get-buffer-create " elpaca--read-file")
(setq default-directory dir)
(insert-file-contents path nil nil nil 'replace)
(goto-char (point-min))
(read (current-buffer)))
((error) (warn "Error reading %S into memory: %S" path err) nil))))
(defmacro elpaca--write-file (file &rest body)
"Write FILE using BODY.
`standard-output' and print variables are lexically bound for convenience.
e.g. elisp forms may be printed via `prin1'."
(declare (indent 1) (debug t))
`(let ((coding-system-for-write 'utf-8))
(with-temp-file ,file
(let* ((standard-output (current-buffer))
print-circle print-level print-length)
,@body
nil))))
(cl-defstruct (elpaca-q (:constructor elpaca-q<-create)
(:type list) (:copier nil)
(:named) (:conc-name elpaca-q<-))
"Queue to hold elpacas."
(type (when (or (not after-init-time)
(let ((init (expand-file-name "init.el" user-emacs-directory)))
(member init (list load-file-name (buffer-file-name)))))
'init))
(id (if (boundp 'elpaca--queues) (length elpaca--queues) 0))
(processed 0)
(status 'incomplete)
(time (current-time))
autoloads forms elpacas)
(defvar elpaca--queues (list (elpaca-q<-create)) "List of elpaca queue objects.")
(defun elpaca-merge-plists (&rest plists)
"Return plist with set of unique keys from PLISTS.
Values for each key are that of the right-most plist containing that key."
(let ((plists (delq nil plists))
current plist)
(while (setq current (pop plists))
(while current (setq plist (plist-put plist (pop current) (pop current)))))
plist))
(defsubst elpaca--first (obj)
"Return `car' of OBJ if it is a list, else OBJ."
(if (listp obj) (car obj) obj))
(defsubst elpaca--q (e)
"Return E's Q."
(and e (car (last elpaca--queues (1+ (elpaca<-queue-id e))))))
(defun elpaca--completion-group-by-menu (candidate transform)
"Return CANDIDATE menu if TRANSFORM non-nil, otherwise CANDIDATE item."
(if-let* ((space (string-match-p " " candidate)))
(substring candidate (if transform 0 (1+ space)) (when transform space))
candidate))
(defcustom elpaca-description-column 20 "Minimum column for completion descriptions."
:type 'number)
(defun elpaca--completion-affixation-fn (candidates)
"Return `elpaca-menu-item' CANDIDATES affixation function."
(let ((col elpaca-description-column))
(lambda (completions)
(setq col (max col (or (cl-loop for c in completions maximize (string-match-p " " c)) 0)))
(mapcar
(lambda (c) (list c ""
(concat (propertize " " 'display `(space :align-to ,col))
(when-let* ((item (cdr (assoc-string c candidates)))
(desc (plist-get (cdr item) :description)))
(propertize (concat " " desc) 'face 'completions-annotations)))))
completions))))
;;;###autoload
(defun elpaca-menu-item (&optional id interactive)
"Return menu item matching ID in `elpaca-menu-functions'.
If ID is nil, prompt for item. If INTERACTIVE is non-nil, copy to `kill-ring'."
(interactive (list nil t))
(let ((item
(if id (run-hook-with-args-until-success 'elpaca-menu-functions 'index id) ;; Depth first search
(cl-loop
for menu in elpaca-menu-functions
append (cl-loop for i in (funcall menu 'index) collect
(cons (concat (symbol-name (car i)) " " (plist-get (cdr i) :source)) i))
into candidates
finally return
(let ((choice (completing-read
(or elpaca-overriding-prompt "Menu Item: ")
(lambda (string pred action)
(if (eq action 'metadata)
`(metadata . ((group-function . elpaca--completion-group-by-menu)
(affixation-function . ,(elpaca--completion-affixation-fn candidates))))
(complete-with-action action candidates string pred)))
nil t)))
(alist-get choice candidates nil nil #'equal))))))
(when interactive
(message "menu-item copied to kill-ring:\n%S" item)
(kill-new (format "%S" item)))
item))
;;;###autoload
(defun elpaca-update-menus (&rest menus)
"Update all menus in MENUS or `elpaca-menu-functions'.
When called interactively with \\[universal-argument] update all menus."
(interactive (if (equal current-prefix-arg '(4))
elpaca-menu-functions
(mapcar #'intern (completing-read-multiple "Update Menus: "
elpaca-menu-functions))))
(let ((elpaca-menu-functions (or menus elpaca-menu-functions)))
(run-hook-with-args 'elpaca-menu-functions 'update)))
(defsubst elpaca--nonheritable-p (obj)
"Return t if OBJ has explicitly nil :inherit key, nil otherwise."
(when-let* (((listp obj))
(member (plist-member obj :inherit)))
(not (cadr member))))
(defun elpaca--order (&optional err)
"Prompt for order. User ERR is messaged when no order selected."
(if-let* ((elpaca-overriding-prompt (or elpaca-overriding-prompt "Order: "))
(item (elpaca-menu-item)))
(cons (car item) (plist-get (cdr item) :recipe))
(user-error (or err "No order selected"))))
;;;###autoload
(defun elpaca-recipe (&optional order interactive)
"Return recipe computed from ORDER.
ORDER is any of the following values:
- nil. The order is prompted for.
- an ID symbol, looked up in ITEMS or `elpaca-menu-functions' cache.
- an order list of the form: \\='(ID . PROPS).
When INTERACTIVE is non-nil, `yank' the recipe to the clipboard."
(interactive (list (elpaca--order) t))
(let* ((order (or order (elpaca--order)))
(id (elpaca--first order))
(props (let ((it (cdr-safe order)))
(unless (zerop (logand (length it) 1))
(user-error "Uneven property list for order %S %s" id it))
it))
(nonheritable-p (elpaca--nonheritable-p props))
(mods (unless nonheritable-p (run-hook-with-args-until-success
'elpaca-order-functions order)))
(inherit (plist-member props :inherit))
(item (let ((elpaca-menu-functions
(unless (or interactive ;; we already queried for this.
(elpaca--nonheritable-p (elpaca-merge-plists mods inherit)))
(if-let* ((menus (cadr inherit))
((not (eq menus t))))
(if (listp menus) menus (list menus))
elpaca-menu-functions))))
(elpaca-menu-item id)))
(item-recipe (plist-put (plist-get item :recipe) :source (plist-get item :source)))
(r (elpaca-merge-plists item-recipe mods props)))
(unless (plist-get r :package) (setq r (plist-put r :package (symbol-name id))))
(when-let* ((recipe-mods (run-hook-with-args-until-success 'elpaca-recipe-functions r)))
(setq r (elpaca-merge-plists r recipe-mods)))
(when-let* ((remotes (plist-get r :remotes)) ;; Normalize :remotes to list of specs
((not (ignore-errors (mapc #'length remotes)))))
(setq r (plist-put r :remotes (list remotes))))
(when interactive
(setq r (elpaca-merge-plists (append (list :package (symbol-name (car-safe id)))
(cdr-safe id))
r))
(kill-new (format "%S" r))
(message "%S recipe copied to kill-ring:\n%S" (plist-get r :package) r))
r))
(defsubst elpaca--emacs-path ()
"Return path to running Emacs."
(concat invocation-directory invocation-name))
(defsubst elpaca--repo-name (string)
"Return repo name portion of STRING."
(setq string (directory-file-name string)) ;; remove external :repo trailing slash
(file-name-base (substring string (- (or (string-match-p "/" (reverse string))
(error "Invalid repo name %S" string))))))
(defsubst elpaca--repo-user (string)
"Return user name portion of STRING."
(substring string 0 (string-match-p "/" string)))
(defun elpaca--repo-type (string)
"Return type of :repo STRING.
Type is `local' for a local filesystem path, `remote' for a remote URL, or nil."
(cond ((string-match-p "^[/~]" string) 'local)
((string-match-p ":" string) 'remote)))
(defvar elpaca--repo-dirs nil "List of registered repository directories.")
(defun elpaca-repo-dir (recipe)
"Return path to repo given RECIPE."
(let* ((url (plist-get recipe :url))
(repo (plist-get recipe :repo))
(remote (car-safe repo))
(local (cdr-safe repo))
(pkg (plist-get recipe :package))
(host (or (plist-get recipe :host) (plist-get recipe :fetcher)))
(hostname (and host (prin1-to-string host 'noescape)))
(user nil)
(info (concat url (or remote repo) hostname))
(key (or (and info (> (length info) 0) (intern info))
(error "Cannot determine URL from recipe: %S" recipe)))
(mono-repo (elpaca-alist-get key elpaca--repo-dirs))
(dirs (and (not mono-repo) (mapcar #'cdr elpaca--repo-dirs)))
(name (cond
(local
(if-let* ((owner (assoc local dirs)))
(error "Local repo %S owned by %s" local (cdr owner))
local))
(mono-repo (car mono-repo))
(url
(unless (featurep 'url-parse) (require 'url-parse))
(file-name-base (directory-file-name (url-filename
(url-generic-parse-url url)))))
(repo (if-let* ((r (or remote repo))
((eq (elpaca--repo-type r) 'local)))
(file-name-base (directory-file-name (or local r)))
(when host (setq user (elpaca--repo-user r)))
(elpaca--repo-name (or local r))))
(pkg pkg)
(t (error "Unable to determine repo name"))))
(dir (if (assoc name dirs)
(string-join (list name hostname user) ".")
(and name (replace-regexp-in-string "\\.el$" "" name)))))
(unless mono-repo (push (cons key (cons dir pkg)) elpaca--repo-dirs))
(file-name-as-directory (expand-file-name dir elpaca-repos-directory))))
(defun elpaca-build-dir (recipe)
"Return RECIPE's build dir."
(expand-file-name (plist-get recipe :package) elpaca-builds-directory))
(defun elpaca--repo-uri (recipe)
"Return repo URI from RECIPE."
(cl-destructuring-bind (&key (protocol 'https)
url
fetcher
(host fetcher)
(repo url) &allow-other-keys)
recipe
(when (consp repo) (setq repo (car repo))) ; Handle :repo rename
(pcase (elpaca--repo-type (or repo (error "Unable to determine recipe URL")))
('remote repo)
('local (expand-file-name repo))
(_ (let ((p (pcase protocol
('https '("https://" . "/"))
('ssh '("git@" . ":"))
(_ (signal 'wrong-type-argument `((https ssh) ,protocol)))))
(h (pcase host
('github "github.com")
('gitlab "gitlab.com")
('codeberg "codeberg.org")
('sourcehut "git.sr.ht")
((pred stringp) host)
(_ (signal 'wrong-type-argument
`(:host (github gitlab codeberg sourcehut stringp)
,host ,recipe))))))
(concat (car p) h (cdr p) (when (eq host 'sourcehut) "~") repo
(unless (eq host 'sourcehut) ".git")))))))
(cl-defstruct (elpaca (:constructor elpaca<--create) (:type list) (:named)
(:conc-name elpaca<-))
"Order for queued processing."
id package order statuses
repo-dir build-dir mono-repo main
files build-steps recipe blocking blockers
dependencies dependents
(queue-id (1- (length elpaca--queues)))
(queue-time (current-time))
(init (not after-init-time))
process log builtp)
(defun elpaca--queued (&optional n)
"Return list of elpacas from Nth queue.
If N is nil return a list of all queued elpacas."
(if n (elpaca-q<-elpacas (nth n elpaca--queues))
(cl-loop for queue in elpaca--queues append (elpaca-q<-elpacas queue))))
(defsubst elpaca--mono-repo (id repo)
"Return previously queued E with REPO other than ID."
(cl-loop for (_ . e) in (reverse (elpaca--queued)) thereis
(and (not (eq (elpaca<-id e) id)) (equal repo (elpaca<-repo-dir e)) e)))
(defun elpaca--build-steps (recipe &optional builtp clonedp mono-repo)
"Return list of build functions for RECIPE.
BUILTP, CLONEDP, and MONO-REPO control which steps are excluded."
(when-let* ((defaults (if builtp elpaca--pre-built-steps elpaca-build-steps))
(steps (let* ((build (plist-member recipe :build))
(steps (cadr build))
(removep (and (eq (car-safe steps) :not) (pop steps))))
(cond
((or (not build) (eq steps t)) defaults)
(removep (cl-set-difference defaults steps))
((listp steps) steps)))))
(if builtp
steps
(when mono-repo
(setq steps
(cl-set-difference steps '(elpaca--clone elpaca--configure-remotes elpaca--checkout-ref))))
(when clonedp (setq steps (remq 'elpaca--clone steps)))
steps)))
(declare-function elpaca-log-defaults "elpaca-log")
(declare-function elpaca-log-initial-queues "elpaca-log")
(defcustom elpaca-log-functions '(elpaca-log-initial-queues elpaca-log-command-query)
"Hook run prior to logging.
It's functions should return either:
- t to log with the buffer's default filter.
- a string which is used as the search query.
- `silent' to prevent logging altogether.
- nil to skip the function.
The first function, if any, which returns non-nil is used." :type 'hook)
(defvar elpaca--log-request-time nil "Time of most recent log event.")
(declare-function elpaca-log "elpaca-log")
(defun elpaca--maybe-log ()
"Log if `elpaca-log-functions' return non-nil."
(when-let* ((query (run-hook-with-args-until-success 'elpaca-log-functions)))
(require 'elpaca-log)
(unless (eq query 'silent)
(setq elpaca--log-request-time (current-time)) ;;@MAYBE: move into elpaca-log?
(elpaca-log (cond ((eq query t) nil)
((stringp query) query)
(t (signal 'wrong-type-error `((stringp t) ,query))))
t))))
(defun elpaca<-create (order)
"Create a new elpaca struct from ORDER."
(let* ((status 'queued)
(info "Package queued")
(id (elpaca--first order))
(recipe (condition-case-unless-debug err (elpaca-recipe order)
((error) (setq status 'struct-failed
info (format "No recipe: %S" err))
nil)))
(repo-dir (and recipe (condition-case-unless-debug err (elpaca-repo-dir recipe)
((error) (setq status 'struct-failed
info (format "Unable to determine repo dir: %S" err))
nil))))
(build-dir (and recipe (elpaca-build-dir recipe)))
(clonedp (and repo-dir (file-exists-p repo-dir)))
(builtp (and clonedp build-dir (file-exists-p build-dir)))
(blockers nil)
(mono-repo (when-let* (((not builtp))
(e (elpaca--mono-repo id repo-dir)))
(when (and (eq (elpaca<-queue-id e) (elpaca-q<-id (car elpaca--queues)))
(not (memq 'ref-checked-out (elpaca<-statuses e))))
(setq status 'blocked info (concat "Waiting on monorepo " repo-dir))
(push (elpaca<-id e) blockers)
(cl-pushnew id (elpaca<-blocking e)))
e))
(build-steps (elpaca--build-steps recipe builtp clonedp mono-repo)))
(when (memq id elpaca-ignored-dependencies)
(setq elpaca-ignored-dependencies (delq id elpaca-ignored-dependencies)))
(elpaca<--create
:id id :package (symbol-name id) :order order :statuses (list status)
:repo-dir repo-dir :build-dir build-dir :mono-repo mono-repo
:build-steps build-steps :recipe recipe :builtp builtp :blockers blockers
:log (list (list status nil info 0)))))
(defsubst elpaca--status (e) "Return E's status." (car (elpaca<-statuses e)))
(declare-function elpaca-ui--update-search-query "elpaca-ui")
(defun elpaca--update-log-buffer ()
"Update views in `elpaca-log-buffer'."
(when-let* ((log (bound-and-true-p elpaca-log-buffer))
((get-buffer-window log t))) ;; log buffer visible
(with-current-buffer log (elpaca-ui--update-search-query log))))
(defun elpaca--log (e text &optional verbosity replace)
"Store TEXT in E's log.
Each event is of the form: (STATUS TIME TEXT (or VERBOSITY 0))
If REPLACE is non-nil, the most recent log entry is replaced."
(let ((event (list (elpaca--status e) (current-time) text (or verbosity 0))))
(if replace
(setf (car (elpaca<-log e)) event)
(push event (elpaca<-log e)))))
(defvar elpaca--waiting nil "Non-nil when `elpaca-wait' is polling.")
(defvar elpaca--status-counts nil "Status counts for UI progress bar.")
(defun elpaca--count-statuses ()
"Update `elpaca--status-counts'."
(cl-loop with statuses for q in elpaca--queues
do (cl-loop for (_ . e) in (elpaca-q<-elpacas q)
for status = (elpaca--status e)
for state = (if (memq status elpaca--inactive-states) status 'other)
do (cl-incf (alist-get state statuses 0)))
finally return statuses))
(defun elpaca--signal (e &optional info status replace verbosity)
"Signal a change to E. Return nil.
If INFO is non-nil, log and possibly print it in `elpaca-log-buffer'.
If REPLACE is non-nil, E's log is updated instead of appended.
If VERBOSITY is non-nil, log event is given that verbosity number.
If STATUS is non-nil and is not E's current STATUS, signal E's dependents to
check (and possibly change) their statuses."
(let* ((new-status-p (and status (not (eq status (elpaca--status e)))))
(queued (and new-status-p (elpaca--queued))))
(when-let* ((new-status-p)
((push status (elpaca<-statuses e)))
((memq status elpaca--inactive-states)))
(setq elpaca--status-counts (elpaca--count-statuses))
(dolist (blocked (elpaca<-blocking e))
(elpaca--check-status e (elpaca-alist-get blocked queued)))
(and (not elpaca-after-init-time) (eq status 'failed) (elpaca--maybe-log)))
(when info (elpaca--log e info verbosity replace))
(when (<= (or verbosity 0) elpaca-verbosity)
(when elpaca--log-timer (cancel-timer elpaca--log-timer))
(if elpaca--waiting ; Don't set timer. We're already polling.
(elpaca--update-log-buffer)
(setq elpaca--log-timer
(and info (run-at-time elpaca-log-interval nil #'elpaca--update-log-buffer))))))
nil)
;;@TODO: Should this cause a non-local exit? Signal custom error type or just `throw'?
;;@MAYBE: UI command to manually fail an order?
(defun elpaca--fail (e &optional reason)
"Fail E for REASON."
(unless (eq (elpaca--status e) 'failed)
(let ((q (elpaca--q e)))
(setf (elpaca-q<-forms q) (assq-delete-all (elpaca<-id e) (elpaca-q<-forms q))))
(when-let* ((p (elpaca<-process e)))
(when-let* ((entry (car (last (elpaca<-log e) (process-get p :loglen)))))
(setf (nth 2 entry) (propertize (nth 2 entry) 'face 'elpaca-failed)))
(when (process-live-p p) (kill-process p)))
(push 'reclone (elpaca<-statuses e)) ;;@HACK: Prevent reclone when legitimate failure during clone.
(elpaca--signal e reason 'failed)
(elpaca--finalize e)))
(defun elpaca-get (id)
"Return queued E associated with ID."
(elpaca-alist-get id (elpaca--queued)))
(defun elpaca--run-build-commands (commands)
"Run build COMMANDS."
(dolist (command (if (listp (car-safe commands)) commands (list commands)))
(message "Running command: %S" command)
(if (cl-every #'stringp command)
(apply #'elpaca-process-poll command)
(eval command t))))
(defun elpaca--caller-name (n &rest skip)
"Return Nth calling function's name, skipping symbols in SKIP."
(cl-loop with current = (backtrace-frame (1+ n)) ;; Skip this function call.
with previous = nil
while (and (or (not (eq (car current) t))
(memq (cadr current) skip))
(setq previous current current (backtrace-frame (cl-incf n))))
finally return (cadr (or current previous))))
(defun elpaca--continue-build (e &rest args)
"Run E's next build step.
Optional ARGS are passed to `elpaca--signal', which see."
(elpaca--signal e (format "Continued by: %S"
(elpaca--caller-name 2 'elpaca--process-sentinel 'apply))
nil nil 2)
(when args (apply #'elpaca--signal e args))
(unless (memq (elpaca--status e) elpaca--inactive-states)
(if-let* ((elpaca-queue-limit)
((not (elpaca<-builtp e)))
;; Don't double count current E
(active (1- (cl-loop for (_ . e) in (elpaca-q<-elpacas (elpaca--q e))
count (not (memq (elpaca--status e) elpaca--inactive-states)))))
((>= active elpaca-queue-limit)))
(unless (eq (elpaca--status e) 'blocked) ;;@MAYBE: check for queue-throttled, too?
(push 'queue-throttled (elpaca<-statuses e))
(elpaca--signal e "elpaca-queue-limit exceeded" 'blocked nil 1))
(let ((step (or (pop (elpaca<-build-steps e)) #'elpaca--finalize)))
(condition-case-unless-debug err ;;@TODO: signal/catch custom error types
(if-let* ((vars (plist-get (elpaca<-recipe e) :vars))
(fn `(lambda (elpaca elpaca-build-step)
(let* (,@vars) (funcall elpaca-build-step elpaca)))))
(funcall fn e step)
(funcall step e))
((error) (elpaca--fail e (format "%s: %S" step err))))))))
(defun elpaca--log-duration (e)
"Return E's log duration."
(time-subtract (nth 1 (car (elpaca<-log e))) (elpaca<-queue-time e)))
(defun elpaca--queue (order &optional queue)
"ADD ORDER to QUEUE or current queue. Return E."
(if-let* ((id (elpaca--first (or order (signal 'wrong-type-argument
'((or symbolp listp) nil)))))
((not after-init-time))
(e (elpaca-get id)))
(if-let* ((dependents (elpaca<-dependents e)))
(warn "%S previously queued as dependency of: %S" id dependents)
(warn "Duplicate item ID queued: %S" id))
(let* ((e (elpaca<-create order))
(log (pop (elpaca<-log e)))
(status (car log))
(info (nth 2 log))
(q (or queue (car elpaca--queues))))
(when queue (setf (elpaca<-queue-id e) (elpaca-q<-id q)
(elpaca<-init e) (elpaca-q<-type q)))
(setf (alist-get id (elpaca-q<-elpacas q)) e)
(if (eq status 'struct-failed)
(elpaca--fail e info)
(elpaca--signal e info status nil 1))
e)))
;;;###autoload
(defun elpaca-split-queue (&rest args)
"Split remaining elpacas into new queue with ARGS."
(unless (elpaca-q<-elpacas (car elpaca--queues)) (pop elpaca--queues))
(push (apply #'elpaca-q<-create args) elpaca--queues)
nil)
;;;###autoload
(defmacro elpaca-queue (&rest body)
"Execute BODY in new queue."
(declare (debug t))
`(progn (elpaca-split-queue) ,@body (elpaca-split-queue)))
(defvar elpaca--post-queues-hook nil)
(defun elpaca--finalize-queue (q)
"Run Q's post installation functions:
- load cached autoloads
- evaluate deferred package configuration forms
- possibly run `elpaca-after-init-hook'."
(when-let* ((autoloads (elpaca-q<-autoloads q)))
(condition-case-unless-debug err
(eval `(progn ,@(reverse autoloads)) t)
((error) (warn "Autoload Error: %S" err))))
(setf (elpaca-q<-status q) 'complete) ; Avoid loop when forms call elpaca-process-queue.
(when-let* ((forms (nreverse (elpaca-q<-forms q))))
(with-current-buffer (get-buffer-create " *elpaca--finalize-queue*")
(setq-local lexical-binding t)
(cl-loop for (id . body) in forms
do (condition-case-unless-debug err
(eval `(progn ,@body) t)
((error) (warn "Config Error %s: %S" id err)))))
(setf (elpaca-q<-forms q) nil))
(run-hooks 'elpaca-post-queue-hook)
(let ((next (nth (1+ (elpaca-q<-id q)) (reverse elpaca--queues))))
(unless (or elpaca-after-init-time ; Already run.
elpaca--waiting ; Won't know if final queue until after waiting.
(not (eq (elpaca-q<-type q) 'init)) ; Already run.
(and next (eq (elpaca-q<-type next) 'init))) ; More init queues.
(elpaca-split-queue)
(setq elpaca-after-init-time (current-time))
(run-hooks 'elpaca-after-init-hook))
(if (and next (elpaca-q<-elpacas next))
(elpaca--process-queue next)
(run-hooks 'elpaca--post-queues-hook))))
(defun elpaca--throttled-p (e)
"Return t if E is blocked due to `elpaca-queue-limit'."
(let ((statuses (elpaca<-statuses e)))
(and (eq (car statuses) 'blocked) (eq (cadr statuses) 'queue-throttled))))
(defun elpaca--finalize (e)
"Declare E finished or failed."
(unless (eq (elpaca--status e) 'failed)
(elpaca--signal
e (concat "✓ " (format-time-string "%s.%3N" (elpaca--log-duration e)) " secs")
'finished))
(let* ((q (elpaca--q e))
(es (elpaca-q<-elpacas q)))
(when-let* ((elpaca-queue-limit)
(next (cl-loop for (_ . e) in es thereis (and (elpaca--throttled-p e) e))))
(elpaca--signal next nil 'unthrottled)
(elpaca--continue-build next))
(when (= (cl-incf (elpaca-q<-processed q)) (length es)) (elpaca--finalize-queue q))))
(defun elpaca--propertize-subprocess (process)
"Propertize PROCESS according to exit status in associated E."
(when-let* ((e (process-get process :elpaca))
(entry (car (last (elpaca<-log e) (process-get process :loglen)))))
(setf (nth 2 entry) (propertize (nth 2 entry) 'face
(if (zerop (process-exit-status process))
'elpaca-finished 'elpaca-failed)))))
(defun elpaca--command-string (strings &optional prefix)
"Return string of form PREFIX STRINGS."
(concat (or prefix "$") (string-join strings " ")))
(defun elpaca--call-with-log (e verbosity &rest command)
"Call and Log E's COMMAND and output with VERBOSITY."
(elpaca-with-process (apply #'elpaca-process-call command)
(elpaca--signal e (propertize (elpaca--command-string command)
'face (if success 'elpaca-finished 'elpaca-failed))
nil nil verbosity)
(when-let* ((output (string-trim (concat stdout stderr)))
((not (string-empty-p output))))
(elpaca--signal e output nil nil verbosity))
result))
(defun elpaca--initial-fetch (e)
"Perform initial fetch for E, respecting :remotes recipe inheritance."
(let* ((recipe (copy-tree (elpaca<-recipe e)))
(remotes (plist-get recipe :remotes)))
(setf recipe (elpaca-merge-plists recipe '(:remotes nil)))
(cl-loop for remote in remotes
for opts = (elpaca-merge-plists recipe (cdr-safe remote))
for command = `("git" "fetch" ,@(when-let* ((depth (plist-get opts :depth))
((numberp depth)))
(list "--depth" (format "%s" depth)))
,(or (car-safe remote) remote))
for fn = `(lambda (e) (elpaca--fetch e ,@command))
do (push fn (elpaca<-build-steps e))
finally (elpaca--continue-build e))))
(defun elpaca--configure-remotes (e)
"Add and/or rename E's repo remotes."
(let ((fetchp nil))
(when-let* ((default-directory (elpaca<-repo-dir e))
(recipe (elpaca<-recipe e))
(remotes (plist-get recipe :remotes)))
(elpaca--signal e "Configuring Remotes" 'adding-remotes)
(cl-loop with renamed for spec in remotes do
(if (stringp spec)
(if renamed
(elpaca--signal e (format "ignoring :remotes rename %S" spec))
(unless (equal spec elpaca-default-remote-name)
(elpaca--call-with-log
e 1 "git" "remote" "rename" elpaca-default-remote-name spec))
(setq renamed spec))
(when-let* ((remote (car spec))
(props (cdr spec))
(inherited (elpaca-merge-plists recipe props))
(URI (elpaca--repo-uri inherited)))
(setq fetchp t)
(elpaca-with-process
(elpaca--call-with-log e 1 "git" "remote" "add" remote URI)
(unless success (elpaca--fail e stderr)))))))
(when fetchp (push #'elpaca--initial-fetch (elpaca<-build-steps e))))
(elpaca--continue-build e))
(defun elpaca--remove-build-steps (e spec)
"Remove each step in SPEC from E."
(setf (elpaca<-build-steps e) (cl-set-difference (elpaca<-build-steps e) spec)))
(defun elpaca--files (e &optional files nocons)
"Return alist of E :files to be symlinked: (PATH . TARGET PATH).
FILES and NOCONS are used recursively."
(cl-loop
with repo-dir = (elpaca<-repo-dir e)
with default-directory = repo-dir
with build-dir = (elpaca<-build-dir e)
with recipe = (elpaca<-recipe e)
with files = (or files (if-let* ((member (plist-member recipe :files)))
(cadr member) elpaca-default-files-directive))
with (exclusions targets with-subdirs)
for el in files do
(pcase el
((pred stringp) (push (or (file-expand-wildcards el) el) targets))
(`(:exclude . ,excluded) (push (elpaca--files e excluded 'nocons) exclusions))
(:defaults (push (elpaca--files e elpaca-default-files-directive 'nocons) targets))
;;@FIX: subdir needn't be same name as globbed path...
(`(,_subdir . ,paths)
(cl-loop for path in paths
for expanded = (file-expand-wildcards path)
do (cl-loop for path in expanded
do (push (cons (expand-file-name path repo-dir)
(expand-file-name path build-dir))
with-subdirs)))))
finally return
(let ((targets (cl-nset-difference (flatten-tree targets) (flatten-tree exclusions)
:test #'equal)))
(if nocons
targets
(append with-subdirs
(cl-loop for target in targets when (file-exists-p target)
collect (cons (expand-file-name target)
(expand-file-name (file-name-nondirectory target)
build-dir))))))))
(defun elpaca--find-source-file-maybe ()
"Find corresponding source file for `current-buffer'."
(when-let* ((file (buffer-file-name))
((string-prefix-p elpaca-builds-directory file))
(e (cdr (cl-find-if (lambda (bdir) (string-match-p bdir file))
(elpaca--queued)
:key (lambda (qd) (elpaca<-build-dir (cdr qd))))))
(source (car (rassoc file (elpaca--files e))))
((file-exists-p source)))
(find-alternate-file source)
(message "Found Elpaca build file source")))
;;;###autoload
(define-minor-mode elpaca-no-symlink-mode
"Global minor mode which installs build files by copying."
:global t :group 'elpaca
(if elpaca-no-symlink-mode
(add-hook 'find-file-hook #'elpaca--find-source-file-maybe)
(remove-hook 'find-file-hook #'elpaca--find-source-file-maybe)))
(defun elpaca--link-build-files (e)
"Link E's :files into its builds subdirectory."
(elpaca--signal e "Linking build files" 'linking)
(let* ((build-dir (elpaca<-build-dir e))
(files (or (elpaca<-files e)
(setf (elpaca<-files e) (elpaca--files e)))))
(when (file-exists-p build-dir) (delete-directory build-dir 'recusrive))
(make-directory build-dir 'parents)
(dolist (spec files)
(when-let* ((file (car spec))
((file-exists-p file))
(link (cdr spec)))
(make-directory (file-name-directory link) 'parents)
(if elpaca-no-symlink-mode
(if (file-directory-p file)
(copy-directory file link nil 'parents 'recursive)
(copy-file file link 'overwrite))
(make-symbolic-link file link 'overwrite)))))
(setf (elpaca<-builtp e) t)
(elpaca--continue-build e "Build files linked"))
(defun elpaca--add-info-path (e)
"Add the E's info to `Info-directory-list'."
(let ((build-dir (elpaca<-build-dir e)))
(if (file-exists-p (expand-file-name "dir" build-dir))
(progn
(elpaca--signal e "Adding Info path" 'info)
(with-eval-after-load 'info
(info-initialize)
(cl-pushnew build-dir Info-directory-list :test #'equal)))
(elpaca--signal e "No Info dir file found" 'info))
(elpaca--continue-build e)))
(defvar elpaca--eol (if (memq system-type '(ms-dos windows-nt cygwin)) "\r\n" "\n"))
(defun elpaca--process-filter (process output)
"Filter PROCESS OUTPUT."
(process-put process :raw-output (concat (process-get process :raw-output) output))
(let* ((e (process-get process :elpaca))
(parsed (process-get process :parsed))
(timer (process-get process :timer))
(chunk (concat parsed output))
(lines (split-string chunk elpaca--eol))
(linep (string-empty-p (car (last lines)))))
(when timer (cancel-timer timer))
(unless (eq (elpaca--status e) 'failed)
(process-put
process :timer (run-at-time elpaca-busy-interval nil #'elpaca--update-log-buffer)))
(unless linep
(process-put process :parsed (car (last lines)))
(setq lines (butlast lines)))
(dolist (line lines)
(unless (string-empty-p line)
(elpaca--signal e (concat " " (car (last (split-string line "\r" t)))))))))
(defun elpaca--process-sentinel (&optional info status process event)
"Update E's INFO and STATUS when PROCESS EVENT is finished."
(if-let* ((e (process-get process :elpaca))
((and (equal event "finished\n") (not (eq (elpaca--status e) 'failed)))))
(progn (elpaca--propertize-subprocess process)
(elpaca--continue-build e info status))
(elpaca--fail e (format "Subprocess error (see previous log entries)"))))
(defun elpaca--compile-info-process-sentinel (process event)
"Sentinel for info compilation PROCESS EVENT."
(let* ((e (process-get process :elpaca))
(finished (equal event "finished\n")))
(unless finished
(setf (elpaca<-build-steps e)
(cl-set-difference (elpaca<-build-steps e) '(elpaca--install-info elpaca--add-info-path))))
(elpaca--propertize-subprocess process)
(elpaca--continue-build
e (if finished "Info compiled" (concat "Compilation failure: " (string-trim event))))))
(defun elpaca--make-process (e &rest spec)
"Attach process to E from `make-process' SPEC plist."
(declare (indent 1))
(let* ((command (plist-get spec :command))
(_ (elpaca--signal ;;@HACK Signal before process started. SIGSTP/SIGSTOP failed orders.
e (propertize (elpaca--command-string command) 'face 'elpaca-blocked)))
(process (make-process ;;@FIX: Find way to stop process and continue after bookkeeping
:name (concat "elpaca-" (plist-get spec :name) "-" (elpaca<-package e))
:connection-type (or (plist-get spec :connection-type) 'pipe)
:command command
:filter (or (plist-get spec :filter) #'elpaca--process-filter)
:sentinel (plist-get spec :sentinel))))