From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.bugs Subject: bug#8968: arc-mode 7z writing support Date: Fri, 08 Jul 2011 23:20:43 +0300 Organization: JURTA Message-ID: <878vs8v810.fsf@mail.jurta.org> References: <87k4c356w6.fsf@mail.jurta.org> <871uy51y7h.fsf@mail.jurta.org> <87mxgpmy40.fsf@mail.jurta.org> <83r561nt9y.fsf@gnu.org> <87tyaw8vqb.fsf@mail.jurta.org> <83liw8o8m4.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1310157171 25381 80.91.229.12 (8 Jul 2011 20:32:51 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 8 Jul 2011 20:32:51 +0000 (UTC) Cc: 8968@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Jul 08 22:32:46 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QfHj8-0007bL-RA for geb-bug-gnu-emacs@m.gmane.org; Fri, 08 Jul 2011 22:32:42 +0200 Original-Received: from localhost ([::1]:33189 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QfHj7-0008Dm-W0 for geb-bug-gnu-emacs@m.gmane.org; Fri, 08 Jul 2011 16:32:42 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:40229) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QfHco-0006x3-RM for bug-gnu-emacs@gnu.org; Fri, 08 Jul 2011 16:26:14 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QfHci-0007Kx-Pw for bug-gnu-emacs@gnu.org; Fri, 08 Jul 2011 16:26:10 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:39387) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QfHch-0007Kb-M2 for bug-gnu-emacs@gnu.org; Fri, 08 Jul 2011 16:26:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1QfHcg-0004A0-FJ; Fri, 08 Jul 2011 16:26:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Juri Linkov Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 08 Jul 2011 20:26:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 8968 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 8968-submit@debbugs.gnu.org id=B8968.131015673815954 (code B ref 8968); Fri, 08 Jul 2011 20:26:02 +0000 Original-Received: (at 8968) by debbugs.gnu.org; 8 Jul 2011 20:25:38 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1QfHcE-00049D-Br for submit@debbugs.gnu.org; Fri, 08 Jul 2011 16:25:38 -0400 Original-Received: from smarty.dreamhost.com ([208.113.175.8]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1QfHc8-00048w-31 for 8968@debbugs.gnu.org; Fri, 08 Jul 2011 16:25:32 -0400 Original-Received: from ps18281.dreamhostps.com (ps18281.dreamhost.com [69.163.218.105]) by smarty.dreamhost.com (Postfix) with ESMTP id 71E1E6E8050; Fri, 8 Jul 2011 13:25:22 -0700 (PDT) Original-Received: from localhost (ps18281.dreamhostps.com [69.163.218.105]) by ps18281.dreamhostps.com (Postfix) with ESMTP id 4783A451C1A5; Fri, 8 Jul 2011 13:25:21 -0700 (PDT) In-Reply-To: <83liw8o8m4.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 08 Jul 2011 22:49:55 +0300") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (x86_64-pc-linux-gnu) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Fri, 08 Jul 2011 16:26:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:48272 Archived-At: >> AFAIU, 7z as a program is Free Software on GNU/Linux systems. > > Not AFAIK. At least fencepost.gnu.org doesn't have 7z, but does have > p7zip, which is a shell script. That shell script invokes another > shell script, called 7zr, which in turn invokes a program > /usr/lib/p7zip/7zr. I'd like to find the definitive answer. On fencepost.gnu.org 7z is not installed, but for what reason? I see that p7zip-full.deb contains 7z that handles free archives, and there is a separate p7zip-rar.deb to handle non-free archives. >> The program `p7zip' (a gzip like wrapper) is not suitable for using in >> arc-mode.el on GNU/Linux. > > Why not? `p7zip' is just a gzip like wrapper that just calls `7zr a -si' and `7zr x -so' on stdin/stdout. Such interface is not used in arc-mode.el. > Is 7zr suitable? If so, we should use it in preference to 7z. There are two kinds of functionality where 7z can be used in arc-mode.el: 1. Browse and update archives in the 7z format. I agree that `7zr' should be preferable, and `7z' should be used as a second option when `7zr' is not available. 2. Browse and update zip and other free archives. Only `7z' can be used for this functionality, not `7zr'. >> The difference between programs `7z' and `7za' is not essential: >> one of them is just a standalone version of another. > > That's not what Jason said. Jason said this about Windows. What I see on GNU/Linux is different.