From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Elpa packages and macro dependencies. Date: Sat, 18 Oct 2014 17:41:11 -0400 Message-ID: References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1413668509 18367 80.91.229.3 (18 Oct 2014 21:41:49 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 18 Oct 2014 21:41:49 +0000 (UTC) Cc: emacs-devel To: bruce.connor.am@gmail.com Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Oct 18 23:41:42 2014 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Xfbkr-0001Kp-BA for ged-emacs-devel@m.gmane.org; Sat, 18 Oct 2014 23:41:41 +0200 Original-Received: from localhost ([::1]:37819 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xfbkq-0007Rl-U0 for ged-emacs-devel@m.gmane.org; Sat, 18 Oct 2014 17:41:40 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58025) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XfbkW-0007Qb-NZ for emacs-devel@gnu.org; Sat, 18 Oct 2014 17:41:28 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XfbkP-0007G8-8I for emacs-devel@gnu.org; Sat, 18 Oct 2014 17:41:20 -0400 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.181]:31413) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XfbkP-0007G2-4U; Sat, 18 Oct 2014 17:41:13 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArUGAIDvNVNFxKjo/2dsb2JhbABZgwaDSsA9gRcXdIIlAQEBAQIBViMFCws0EhQYDYgoCNIZF444QgcWhCIElGKUN4Fqg0whgS4 X-IPAS-Result: ArUGAIDvNVNFxKjo/2dsb2JhbABZgwaDSsA9gRcXdIIlAQEBAQIBViMFCws0EhQYDYgoCNIZF444QgcWhCIElGKUN4Fqg0whgS4 X-IronPort-AV: E=Sophos;i="4.97,753,1389762000"; d="scan'208";a="94541339" Original-Received: from 69-196-168-232.dsl.teksavvy.com (HELO pastel.home) ([69.196.168.232]) by ironport2-out.teksavvy.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 18 Oct 2014 17:41:12 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id CA99D6542; Sat, 18 Oct 2014 17:41:11 -0400 (EDT) In-Reply-To: (bruce connor am's message of "Fri, 17 Oct 2014 22:24:10 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 206.248.154.181 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:175543 Archived-At: >> > Before upgrading a package, package.el could check if the package >> > is already loaded and then force-reload it after the installation. >> The question is how to do the "force-reload". Once we know how to do >> that, there are various options as to when to do this force-reload, and >> I think this is an easier problem. > Just calling (load "file") is what I had in mind. > It's enough to redefine macros, which are the biggest issue IMO. There are some issues to deal with: - We shouldn't load "file" if it's not already loaded. - Packages can include several files, so we have to figure out the set of files to load and (here's the rub) the order in which to load them. > It won't redefine defcustom/var, but I'm not even convinced that it would > be a good idea to redefine them. It can be important in some cases, but admittedly, it's not clear how to do it safely. Stefan