From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Philip Kaludercic Newsgroups: gmane.emacs.devel Subject: Re: Proposal for 'package-isolate' command Date: Thu, 17 Aug 2023 08:34:42 +0000 Message-ID: <87pm3mgj8d.fsf@posteo.net> References: <87r0oftgye.fsf@posteo.net> <87350vt1wz.fsf@posteo.net> <871qgen1ln.fsf@posteo.net> <87edke4mou.fsf@posteo.net> <87wmy6kuan.fsf@posteo.net> <87wmy6w070.fsf@posteo.net> <87zg2sjleg.fsf@posteo.net> <87pm3nlbm7.fsf@posteo.net> <87zg2ri9g9.fsf@posteo.net> <87bkf7b7ls.fsf@posteo.net> <87v8dfi6zy.fsf@posteo.net> <877cpvb361.fsf@posteo.net> <87pm3mj0ot.fsf_-_@posteo.net> <87v8de9qel.fsf@posteo.net> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3945"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Thierry Volpiatto Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Aug 17 10:35:49 2023 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qWYTs-0000nu-Jy for ged-emacs-devel@m.gmane-mx.org; Thu, 17 Aug 2023 10:35:48 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qWYSx-0004fS-8y; Thu, 17 Aug 2023 04:34:51 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qWYSw-0004fJ-7e for emacs-devel@gnu.org; Thu, 17 Aug 2023 04:34:50 -0400 Original-Received: from mout02.posteo.de ([185.67.36.66]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qWYSt-0008Jz-9h for emacs-devel@gnu.org; Thu, 17 Aug 2023 04:34:49 -0400 Original-Received: from submission (posteo.de [185.67.36.169]) by mout02.posteo.de (Postfix) with ESMTPS id B0E49240105 for ; Thu, 17 Aug 2023 10:34:44 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1692261284; bh=aEO4QgA4CInzntLB9bLSVhVdD46Y7zzzK/aOdK6qy9o=; h=From:To:Cc:Subject:Autocrypt:Date:Message-ID:MIME-Version:From; b=GYS/PC/pd1bomtfx6xN41OORQJA6d7XPDbh7I+mHyNQY4PKvYF4+Mivp8KQNuUYN8 kOqN9M8mRRhUjvrU2UCORH2nE9urswx9xcRxV72qp0wAysepbkvoLb7U5aEFrgAgn1 8STJow7cTTWRLL38DrE2zi4Q7Wohz7ZeZNFzT6By5CgMXp2bfrNVBpNJs0df1YfeDR c48uAcuALEeI0j5c9JfbyHmAaurSdawf3SpFZQEADhJ0Fo7HfgzCB5ngIBMqQOc+6p 9A9YQXuQ99glQkCjUjj1EO5f6yO/My03KCC0k+8I59VQMbO4+DSOrVxDq/LWK2GQCj rAxl4FghZD7Mg== Original-Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4RRJGC6Qx4z6twJ; Thu, 17 Aug 2023 10:34:43 +0200 (CEST) In-Reply-To: <87v8de9qel.fsf@posteo.net> (Thierry Volpiatto's message of "Thu, 17 Aug 2023 05:30:24 +0000") Autocrypt: addr=philipk@posteo.net; keydata= mDMEZBBQQhYJKwYBBAHaRw8BAQdAHJuofBrfqFh12uQu0Yi7mrl525F28eTmwUDflFNmdui0QlBo aWxpcCBLYWx1ZGVyY2ljIChnZW5lcmF0ZWQgYnkgYXV0b2NyeXB0LmVsKSA8cGhpbGlwa0Bwb3N0 ZW8ubmV0PoiWBBMWCAA+FiEEDg7HY17ghYlni8XN8xYDWXahwukFAmQQUEICGwMFCQHhM4AFCwkI BwIGFQoJCAsCBBYCAwECHgECF4AACgkQ8xYDWXahwulikAEA77hloUiSrXgFkUVJhlKBpLCHUjA0 mWZ9j9w5d08+jVwBAK6c4iGP7j+/PhbkxaEKa4V3MzIl7zJkcNNjHCXmvFcEuDgEZBBQQhIKKwYB BAGXVQEFAQEHQI5NLiLRjZy3OfSt1dhCmFyn+fN/QKELUYQetiaoe+MMAwEIB4h+BBgWCAAmFiEE Dg7HY17ghYlni8XN8xYDWXahwukFAmQQUEICGwwFCQHhM4AACgkQ8xYDWXahwukm+wEA8cml4JpK NeAu65rg+auKrPOP6TP/4YWRCTIvuYDm0joBALw98AMz7/qMHvSCeU/hw9PL6u6R2EScxtpKnWof z4oM Received-SPF: pass client-ip=185.67.36.66; envelope-from=philipk@posteo.net; helo=mout02.posteo.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:308850 Archived-At: --=-=-= Content-Type: text/plain Thierry Volpiatto writes: > Philip Kaludercic writes: > >>> No don't worry, helm will work in any cases, thanks. >> >> OK, in that case I'd prefer to keep it the way it is. > > Ok, fair enough. > >>>> Mainly to avoid issues with packages that might place files in the >>>> configuration directory, which might hinder the reproduction of bugs. >>> >>> Hmm, maybe, I don't have an example in mind though. >> >> It might not be the best example, but my package autocrypt generates a >> file in the `user-emacs-directory'. If we don't use --init-directory, >> the existing file would be re-used. > > Ok, for such case it is easy to either rename the file temporarily to > foo_ori or foo_save or to set the variable handling the file (generally > it is not harcoded) to something else. But another issue is if your > isolated package needs the history file or tramp file or whatever file > ~/.emacs.d is handling; e.g. a package providing completion on history. > I still think it is more handy to reuse user-emacs-directory and its > elpa directory where the packages are already installed. How about this patch, that will use a temporary directory when `package-isolate' is invoked with a prefix argument (not sure what the default should be, I guess reusing `user-emacs-directory' is less surprising): --=-=-= Content-Type: text/x-diff Content-Disposition: attachment; filename=0001-Add-command-to-start-Emacs-with-specific-packages.patch >From dd5da3d2f64f89994084012a3b7379aa78ae33f2 Mon Sep 17 00:00:00 2001 From: Philip Kaludercic Date: Tue, 15 Aug 2023 18:39:14 +0200 Subject: [PATCH] Add command to start Emacs with specific packages * lisp/emacs-lisp/package.el (package--dependencies): Extend function to handle and return package descriptors. (package-isolate): Add new command. * etc/NEWS: Announce new command. --- etc/NEWS | 9 +++++ lisp/emacs-lisp/package.el | 77 +++++++++++++++++++++++++++++++++++--- 2 files changed, 80 insertions(+), 6 deletions(-) diff --git a/etc/NEWS b/etc/NEWS index 57f04609679..dc213dcee42 100644 --- a/etc/NEWS +++ b/etc/NEWS @@ -505,6 +505,15 @@ project, that you can quickly select using 'project-switch-project' When non-nil, package specifications with side-effects for building software will be used when building a package. +--- +*** New command to start an inferior Emacs loading only specific packages. +The new command 'package-isolate' will start a new Emacs process, as +a sub-process of Emacs where you invoke the command, in a way that +causes the new process to load only some of the installed packages. +The command prompts for the packages to activate in this +sub-process, and is intended for testing Emacs and/or the packages +in a clean environment. + ** Flymake +++ diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el index b3062d2608b..169d0d1360d 100644 --- a/lisp/emacs-lisp/package.el +++ b/lisp/emacs-lisp/package.el @@ -2330,12 +2330,26 @@ package-upgrade-all (mapc #'package-upgrade upgradeable)))) (defun package--dependencies (pkg) - "Return a list of all dependencies PKG has. -This is done recursively." - ;; Can we have circular dependencies? Assume "nope". - (when-let* ((desc (cadr (assq pkg package-archive-contents))) - (deps (mapcar #'car (package-desc-reqs desc)))) - (delete-dups (apply #'nconc deps (mapcar #'package--dependencies deps))))) + "Return a list of all recursive dependencies of PKG. +If PKG is a package descriptor, the return value will consist of +a list of package descriptors. If PKG is a symbol, designating a +package, the return value will be a list of symbols designating +packages." + (when-let* ((desc (if (package-desc-p pkg) pkg + (cadr (assq pkg package-archive-contents))))) + ;; Can we have circular dependencies? Assume "nope". + (let ((all (named-let more ((pkg-desc desc)) + (let (deps) + (dolist (req (package-desc-reqs pkg-desc)) + (setq deps (nconc + (catch 'found + (dolist (p (apply #'append (mapcar #'cdr (package--alist)))) + (when (and (string= (car req) (package-desc-name p)) + (version-list-<= (cadr req) (package-desc-version p))) + (throw 'found (more p))))) + deps))) + (delete-dups (cons pkg-desc deps)))))) + (remq pkg (mapcar (if (package-desc-p pkg) #'identity #'package-desc-name) all))))) (defun package-strip-rcs-id (str) "Strip RCS version ID from the version string STR. @@ -2625,6 +2639,57 @@ package-autoremove removable)) (message "Nothing to autoremove"))))) +(defun package-isolate (packages &optional temp-init) + "Start an uncustomised Emacs and only load a set of PACKAGES. +If TEMP-INIT is non-nil, or when invoked with a prefix argument, +the Emacs user directory is set to a temporary directory." + (interactive + (cl-loop for p in (cl-loop for p in (package--alist) append (cdr p)) + unless (package-built-in-p p) + collect (cons (package-desc-full-name p) p) into table + finally return + (list (cl-loop for c in (completing-read-multiple + "Isolate packages: " table + nil t) + collect (alist-get c table nil nil #'string=)) + current-prefix-arg))) + (let* ((name (concat "package-isolate-" + (mapconcat #'package-desc-full-name packages ","))) + (all-packages (delete-consecutive-dups + (sort (append packages (mapcan #'package--dependencies packages)) + (lambda (p0 p1) + (string< (package-desc-name p0) (package-desc-name p1)))))) + initial-scratch-message package-load-list) + (with-temp-buffer + (insert ";; This is an isolated testing environment, with these packages enabled:\n\n") + (dolist (package all-packages) + (push (list (package-desc-name package) + (package-version-join (package-desc-version package))) + package-load-list) + (insert ";; - " (package-desc-full-name package)) + (unless (memq package packages) + (insert " (dependency)")) + (insert "\n")) + (insert "\n") + (setq initial-scratch-message (buffer-string))) + (apply #'start-process (concat "*" name "*") nil + (list (expand-file-name invocation-name invocation-directory) + "--quick" "--debug-init" + "--init-directory" (if temp-init + (make-temp-file name t) + user-emacs-directory) + (format "--eval=%S" + `(progn + (setq initial-scratch-message ,initial-scratch-message) + + (require 'package) + ,@(mapcar + (lambda (dir) + `(add-to-list 'package-directory-list ,dir)) + (cons package-user-dir package-directory-list)) + (setq package-load-list ',package-load-list) + (package-initialize))))))) + ;;;; Package description buffer. -- 2.39.2 --=-=-=--