X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:reply-to:to:subject:date:message-id :references:in-reply-to:content-type:content-transfer-encoding :mime-version; q=dns; s=default; b=kKvXb9rX8D7lyowfxihVYVu8KlLXC Z9gyuX1EaBnNEAqImo3OvQvbVc5Y6IJOPH5qIylivk+UanqvMy7qsztaoO6J9M4i XPfnE2NAYcQrlzMuRqhgc2TAKlgkjG5R+meE9Mi51S9rGf3L7h69x/0J0W65M3Wf +iuo4dCBonj1tk= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:reply-to:to:subject:date:message-id :references:in-reply-to:content-type:content-transfer-encoding :mime-version; s=default; bh=4A4oMu7ZO4BiP+hRKM6SJrNjkUk=; b=Kh1 l3dirL29Fv3sf9hMUCg8+a8AFDMl3dWWr1FNjTmu4KH6Bf5klXCdfoiidCMFdbNs TeZqTLrsmpuFY5N1Qpxg2tnmClbMmh09NEpXnEPXByf87qXBikCmg1AK9/TjKSsW KAOF9oWgcTXz0Y2ETmdsdLXmYj9i+WJDl0UMGLLQ= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE,SPF_HELO_PASS autolearn=ham version=3.3.1 spammy=inbetween, in-between X-HELO: NAM05-DM3-obe.outbound.protection.outlook.com ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ZgwLeghHshVXq3vF0P/RCyOaT5yGHDaLSnauDp6iUHzZR6pte3teaGbRqtdMPkK5c92V7273VRaLDn4hlSRWbSi68o40y8JSxp6wUkY/MQgR+UYd/nRAZThuJYIqoQmxIg5sLFk2oFeT9mcwW+ZkNjOFC4h3r7P+7rZ2Szb+EywHoA4KB1hN3nmX5xuatIOp/WuNpP2VkGae7vqwn6NnZiPBtX0ddHbrCTfAwNSk6IExE5V5q7K53BOxUgyCRMjHkFqiBJ/RjzjnwwEM3UEJQNb9JTMgRC+tJHU+6gDTaj15j9XR+GV3WwuszeJNzjqwivvvWCGPTURgxmG/vz2rBw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=0L3+NjBkQTD5ztnpsaePfjCt+AZ/4TYSRmSOcILD434=; b=djPXplzzchRT0Dc6u8alAKsn4sbLniLcXX1SiEdpSBUsEfhVq1AI5hoS1jcSKl55EtMWk93kPNCb6Rv0ZxnQPt5Ljynb4ppXN4d/NlPQHmMBr6o8jjh09HnIwWMDA4W0EVwSU2WY19O3Kmwy9BAxSFdMGlCG2dUHG13FxgmJ7GIP74mJqqPbxcAJ33NagGWDGDmx8XNUc43C8JZxy1Qmp49WP/Ud5Yp1PDAH6U0mldSl0/NREOuPRjE/nmkTf9Fqqqhr+7oHxeM4zOIws1xHB9cUxd0eO3AJJF9asc5UE7pz1Izb49ZdN7d7nqSGo1Og/1yyfPokYgJhInb/4ukOMw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=microsoft.com; dmarc=pass action=none header.from=microsoft.com; dkim=pass header.d=microsoft.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=0L3+NjBkQTD5ztnpsaePfjCt+AZ/4TYSRmSOcILD434=; b=OAzAWOi6W46bflPXJkdW9YpmpMOzgNCtjxhc/TsmK/dfjMB/NoTpHQINoe1n8JMfqR8IP9bMpjZMSu9I9QFxOVkeKeWhbXMuQr4vRBwde1JdcmMQOexf+TL6hIlHg+cE+7haoluX3Jj82Fr6CtOxzr6wMRYLwQJT5x3kxQ5ohJI= From: "Stephen Provine via cygwin" Reply-To: Stephen Provine To: Ken Brown , "cygwin AT cygwin DOT com" Subject: RE: Future setup regression caused by 'mkdir: always check-for-existence' commit Date: Mon, 26 Aug 2019 22:13:19 +0000 Message-ID: References: <860a3bd2-fc37-27c0-54f3-0fce8add7c24 AT cornell DOT edu> In-Reply-To: authentication-results: spf=none (sender IP is ) smtp.mailfrom=stephpr AT microsoft DOT com; x-ms-exchange-purlcount: 1 x-ms-oob-tlc-oobclassifiers: OLM:10000; received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: CYqyzcDQHdEEYbU1mSDx127+NKMBz4QenajLIVh4BzVWrcCDkT5hRdODRatsILbm7ygiAn47V65PpiJsLlt4mw== Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id x7QMDwCk015565 On 8/26/2019 1:33 PM, Ken Brown wrote: > I don't think you understand the logic change in that commit. An attempt to create an existing directory would already fail before that commit; the failure would occur in the call to fh->mkdir(). The commit in question simply guarantees that the error code is EEXIST. Take a look at the commit message. I installed the current release of Cygwin with all the default packages (so cygwin package version 3.0.7-1) and tested the scenario that Git for Windows runs into, which is that prior to running its post-install script (https://github.com/git-for-windows/git-sdk-64/blob/master/etc/post-install/01-devices.post), there is no "dev" directory present on the host Windows machine (I just renamed it to "dev2" before running Cygwin.bat). Running "mkdir -m 0755 /dev" in Cygwin *succeeds* with exit code 0. I then deleted that installation and installed Cygwin again, only changing the cygwin package version to 3.1.0-0.2 (test). Tried the same scenario again and "mkdir -m 0755 /dev" fails with the error " mkdir: cannot create directory '/dev': File exists". I should also point out that this change in behavior starts not in 3.1.0 but in 3.0.7-3, and in-between 3.0.7-1 and 3.0.7-3 the commit I mention seemed like the most reasonable reason for it. All this said, Cygwin succeeds in both cases. And now that I look, I think the Cygwin setup program explicitly creates "/dev" as a standard directory so it avoids this change in behavior. Given that the new behavior is obviously correct, I assume this means there is nothing for Cygwin to do, and the fix is for Git for Windows to explicitly create this directory. Thanks, Stephen -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple