From debbugs-submit-bounces@debbugs.gnu.org Wed Nov 29 22:14:42 2023 Received: (at submit) by debbugs.gnu.org; 30 Nov 2023 03:14:42 +0000 Received: from localhost ([127.0.0.1]:51934 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1r8XVi-0007FW-4S for submit@debbugs.gnu.org; Wed, 29 Nov 2023 22:14:42 -0500 Received: from lists.gnu.org ([2001:470:142::17]:34710) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1r8XEj-0006jx-S6 for submit@debbugs.gnu.org; Wed, 29 Nov 2023 21:57:10 -0500 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 1r8XEW-0002eX-LP for bug-diffutils@gnu.org; Wed, 29 Nov 2023 21:56:56 -0500 Received: from mail-yb1-xb33.google.com ([2607:f8b0:4864:20::b33]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1r8XEU-000657-6u for bug-diffutils@gnu.org; Wed, 29 Nov 2023 21:56:56 -0500 Received: by mail-yb1-xb33.google.com with SMTP id 3f1490d57ef6-db537948ea0so234343276.2 for ; Wed, 29 Nov 2023 18:56:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1701313012; x=1701917812; darn=gnu.org; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=SsOmdKHYKwQKOa7DOk15tWIbeYuh+Z1A/BOw2jfD1e8=; b=i0QorS1DefiQ/Okk0+fmQLpghHguMFHYzwot3jw2JrZfmMIpGk3IJeyJoBhd9dR1CA IvkCzWbxxbR7n8E9jMMPga6MD1wZoaHfJHiOBV0n8sEJtZAv2/882asqMKz9DwiBow7l S5fXNGfkUC+D0obULREUgBIAjkTGTIXd5YfTO5mK56vZJlFrSvvZTYPU0Nj0wQKayYEk Ci6Js9b8w04Gtvr+6ybZ7+WQY9eQXkLXPxbFm9mNfzj4QG34ip8vVtSdMcazPJhDOjm0 NZ2jM2UkaAj6hrB2MijP+Y5DN1ssMovaYAEQ653nbtQwfckbmP+WZfsFa5T31ZMYspBc YM4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701313012; x=1701917812; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=SsOmdKHYKwQKOa7DOk15tWIbeYuh+Z1A/BOw2jfD1e8=; b=O98FOUDKDuL3flwti3fm3n7TdmNQuFbpl2gkex5UI5wo2fvS2kKuKhj37YUrEt4jxV pi8wTca7KtGDQmWarCKCIzuQqyc4aqSqJLec8kT6sAR0At6Ck8x7gdGHluK965Hupiec FqzJBlvwtapOmCcCAawAMsozgDJvOScbpYpL1bp3KNQJTP+FCMeGvs3gXmsFXVViTFrE 1+968HYBRW5hR0LVi99X+BDZQvoc9hqScn5ErncI1uJT5sF0010JJvZ00eRL9lx2UGPi nudFB84KaCQMNlpWxRwGRV2+hOWYCkT6ATQrR/p2Iz7ztjBi69MMWRF8KWzkyyf9p7by RzAQ== X-Gm-Message-State: AOJu0YwG7TDHG8cRWTTRe9r8+1y6UBoOn59Q/gjH4rs0BR+jPjqz8+ym /lALSSkjuYVDSUi9WxEh3hQZGph8i04rAKABL2nhhtV5za4= X-Google-Smtp-Source: AGHT+IHELvP7KulGHpObJf1y/2qLlypYFEwzOB1gtvHxfPQwKjZ7RcMfm0HNvpM2Xt8X2tC5bdc05sDZXIo/hbCe60s= X-Received: by 2002:a25:f904:0:b0:d9a:ed4d:b396 with SMTP id q4-20020a25f904000000b00d9aed4db396mr19262152ybe.6.1701313012453; Wed, 29 Nov 2023 18:56:52 -0800 (PST) MIME-Version: 1.0 From: kevin dankwardt Date: Wed, 29 Nov 2023 18:56:16 -0800 Message-ID: Subject: diff -r reporting two fifos as somehow different To: bug-diffutils@gnu.org Content-Type: multipart/alternative; boundary="000000000000c255d3060b55cd2f" Received-SPF: pass client-ip=2607:f8b0:4864:20::b33; envelope-from=kevin.dankwardt@gmail.com; helo=mail-yb1-xb33.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 1.0 (+) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Wed, 29 Nov 2023 22:14:41 -0500 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.0 (/) --000000000000c255d3060b55cd2f Content-Type: text/plain; charset="UTF-8" Reproduce: $ mkdir /tmp/a.dir $ mkdir /tmp/b.dir $ mkfifo /tmp/a.dir/afifo $ mkfifo /tmp/b.dir/afifo $ diff -r /tmp/a.dir /tmp/b.dir *File /tmp/a.dir/afifo is a fifo while file /tmp/b.dir/afifo is a fifo* --000000000000c255d3060b55cd2f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Reproduce:

$ mkdir /tmp/a.dir

$ mkdir /tmp/b.dir

$ mkfifo /tmp/a.d= ir/afifo

$ mkfifo /tmp/b.d= ir/afifo

$ diff -r /tmp/a.dir /tmp/b.dir

File /tmp/a.di= r/afifo is a fifo while file /tmp/b.dir/afifo is a fifo

--000000000000c255d3060b55cd2f-- From debbugs-submit-bounces@debbugs.gnu.org Wed Nov 29 23:32:53 2023 Received: (at 67541) by debbugs.gnu.org; 30 Nov 2023 04:32:53 +0000 Received: from localhost ([127.0.0.1]:51966 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1r8YjN-0001CV-Dg for submit@debbugs.gnu.org; Wed, 29 Nov 2023 23:32:53 -0500 Received: from mail.cs.ucla.edu ([131.179.128.66]:33778) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1r8YjL-0001CI-LE for 67541@debbugs.gnu.org; Wed, 29 Nov 2023 23:32:52 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.cs.ucla.edu (Postfix) with ESMTP id 886A23C011BD4; Wed, 29 Nov 2023 20:32:37 -0800 (PST) Received: from mail.cs.ucla.edu ([127.0.0.1]) by localhost (mail.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id UkTgzKceg21X; Wed, 29 Nov 2023 20:32:37 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by mail.cs.ucla.edu (Postfix) with ESMTP id 4E03E3C011BD5; Wed, 29 Nov 2023 20:32:37 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.10.3 mail.cs.ucla.edu 4E03E3C011BD5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cs.ucla.edu; s=9D0B346E-2AEB-11ED-9476-E14B719DCE6C; t=1701318757; bh=gw1hpUfF7v8AqW87wRjF5jQKWi5v6pZMqszZ9frHKpE=; h=Message-ID:Date:MIME-Version:To:From; b=SOMUG+x6cXzGaHXEUVcRj6497n+LTF7lnxu0frG9m+NMuu5zQDJWuP+MkS8W4q/k8 cB8TEmFIoc/FVaTU8DZAER4pWLoPfiY8L4EM2+eiKLYTp5YHMfUeF5V9cUwfhxeQ+r JtoPGktLHwQcMsyYf7pfHizCLgFHlhVr3F5AZjyovSa1P3pEeQFWDaPfh/x6c/1IVR bCYrCBVpskyTFQ4kTprJ9oV08Kej1XZcvtr1wdgSPk08ujubP+fEG01/NnzFElHKb8 9nclxM3AXDlzuPTB+Ru29wAqfxZosDBpwI4BxqFJJa/iWk7l5dPWSmCyqnGMCnQL2D bAsVzIXlyDx1Q== X-Virus-Scanned: amavisd-new at mail.cs.ucla.edu Received: from mail.cs.ucla.edu ([127.0.0.1]) by localhost (mail.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id aHcCVWPJINTe; Wed, 29 Nov 2023 20:32:37 -0800 (PST) Received: from [131.179.64.200] (Penguin.CS.UCLA.EDU [131.179.64.200]) by mail.cs.ucla.edu (Postfix) with ESMTPSA id 383D73C011BD4; Wed, 29 Nov 2023 20:32:37 -0800 (PST) Message-ID: <2eab5de3-ec82-478a-9b32-13b773be2763@cs.ucla.edu> Date: Wed, 29 Nov 2023 20:32:36 -0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [bug-diffutils] bug#67541: diff -r reporting two fifos as somehow different Content-Language: en-US To: kevin dankwardt , 67541@debbugs.gnu.org References: From: Paul Eggert Organization: UCLA Computer Science Department In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 67541 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) On 11/29/23 18:56, kevin dankwardt wrote: > Reproduce: > > $ mkdir /tmp/a.dir > > $ mkdir /tmp/b.dir > > $ mkfifo /tmp/a.dir/afifo > > $ mkfifo /tmp/b.dir/afifo > > $ diff -r /tmp/a.dir /tmp/b.dir > > *File /tmp/a.dir/afifo is a fifo while file /tmp/b.dir/afifo is a fifo* I'm not sure I see this as a bug, as they are different fifos. If they were opened and read they'd likely have different contents, though it wouldn't be a good idea for diff -r to open fifos. Perhaps the diagnostic message could be improved, though I'm not sure what the improved wording would be.