From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: PACKAGE-FEATURES, and hot update of Emacs packages Date: Sat, 27 Nov 2021 12:09:17 +0200 Message-ID: <831r3129ma.fsf@gnu.org> References: <5C502136-57BD-40D4-A1E8-A4313AD7CDFC@stanford.edu> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="1412"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Qiantan Hong Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Nov 27 11:10:17 2021 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 1mqueu-0000Cy-RZ for ged-emacs-devel@m.gmane-mx.org; Sat, 27 Nov 2021 11:10:17 +0100 Original-Received: from localhost ([::1]:44646 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mquet-00038n-QX for ged-emacs-devel@m.gmane-mx.org; Sat, 27 Nov 2021 05:10:15 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:46772) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqudu-0002RY-RC for emacs-devel@gnu.org; Sat, 27 Nov 2021 05:09:14 -0500 Original-Received: from [2001:470:142:3::e] (port=53796 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqudu-0004ZA-CW; Sat, 27 Nov 2021 05:09:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=GLHhgxH26GkGoVbfj9s+6QvyF58WHBTLaMwBdDkK3lE=; b=h0YlFnFp9Hog 1qhyMS7YqfOPnjcAESVa9RSuEOh6XD5nSO6ycuu/v2CH33laaKin1yqXLntnYZZCgvePxjoMCORdU oqN83dly+JhRYTVp3iBjudUudFkzPmPNjqAeYbRTVv/YmGhTqGJiimn4lT4CFCbJ4mF40JzYPMg8A OYd8yE+JD5D8y9vB33fZT8r2y5+W7Ecte9RmTj2Uvc2W+ybsMiNYnIkNc3f2pOhPNjmXV7bX35ov/ sgO+D/hd4fpGNk27jkCzO0zIZ3eedQADcIbWaQZ1H9P+Omo7sQJ041ZCGcMipiQWjO2diFteQxVqe j0jw/2XUcQ5XcWWSE9nbZg==; Original-Received: from [87.69.77.57] (port=2330 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqudr-0005RM-3K; Sat, 27 Nov 2021 05:09:14 -0500 In-Reply-To: <5C502136-57BD-40D4-A1E8-A4313AD7CDFC@stanford.edu> (message from Qiantan Hong on Sat, 27 Nov 2021 09:31:10 +0000) 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" Xref: news.gmane.io gmane.emacs.devel:280313 Archived-At: > From: Qiantan Hong > Date: Sat, 27 Nov 2021 09:31:10 +0000 > > Then to really update p, one just need to > > (mapc (lambda (feature) (unload-feature feature t)) (package-features p)) > (package-reinstall p) > (require p) Is it really 100% safe to unload features, in the sense that reloading the package will then behave as if Emacs was restarted?