From: Mark Walters Date: Wed, 21 May 2014 09:58:50 +0000 (+0100) Subject: [PATCH] emacs: make sure tagging on an empty query is harmless X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=606f001b7832674a4106c06baf207e25e53ff0ec;p=notmuch-archives.git [PATCH] emacs: make sure tagging on an empty query is harmless --- diff --git a/07/e494baef9e218e3fd327844b1e63db6e371f0b b/07/e494baef9e218e3fd327844b1e63db6e371f0b new file mode 100644 index 000000000..d4805475f --- /dev/null +++ b/07/e494baef9e218e3fd327844b1e63db6e371f0b @@ -0,0 +1,145 @@ +Return-Path: +X-Original-To: notmuch@notmuchmail.org +Delivered-To: notmuch@notmuchmail.org +Received: from localhost (localhost [127.0.0.1]) + by olra.theworths.org (Postfix) with ESMTP id 95B2B431FC7 + for ; Wed, 21 May 2014 02:59:09 -0700 (PDT) +X-Virus-Scanned: Debian amavisd-new at olra.theworths.org +X-Spam-Flag: NO +X-Spam-Score: 0.201 +X-Spam-Level: +X-Spam-Status: No, score=0.201 tagged_above=-999 required=5 + tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, + FREEMAIL_ENVFROM_END_DIGIT=1, FREEMAIL_FROM=0.001, + RCVD_IN_DNSWL_LOW=-0.7] autolearn=disabled +Received: from olra.theworths.org ([127.0.0.1]) + by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024) + with ESMTP id YYHDEm9qyWvN for ; + Wed, 21 May 2014 02:59:04 -0700 (PDT) +Received: from mail-wi0-f176.google.com (mail-wi0-f176.google.com + [209.85.212.176]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) + (No client certificate requested) + by olra.theworths.org (Postfix) with ESMTPS id E469F431FC4 + for ; Wed, 21 May 2014 02:59:03 -0700 (PDT) +Received: by mail-wi0-f176.google.com with SMTP id n15so7360239wiw.3 + for ; Wed, 21 May 2014 02:59:01 -0700 (PDT) +DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; + h=from:to:cc:subject:date:message-id:in-reply-to:references; + bh=UNWEXWTz/XV+fy3Enf5s+AntmoVmdr0PRCeLNzbJz08=; + b=pLrOHbAHE1p9gWirIFTrSwY63SSP4pT7CXrCTmDOTaW29XAzPR3Zwugf22merJBltm + BezFgST38/AlvLUwRv1mGoGYXobpk3yCUs97UFycHoAsB4t9KZ1pWYdldU+MNqOCh1mv + GL3JVfXY6mszNKzY3ayaEdiA34ea7RjHBshX2dEwu5gf5m6ZgDs5JDeZ3N93gDuPRNpN + ss3hNcVFbtHtUOymYpuHfdxhlyOAQGmbouEjWLecvnhTgT5PnhYSRCXkas+//yviW3rh + VlYtxI9SXx9ONe2a0QFpx7XB6icbb4/GkA0XNLC4A0LYEJjGbA33TM5wwfGpBOgW3wF1 + 7ayA== +X-Received: by 10.194.221.69 with SMTP id qc5mr800900wjc.91.1400666341522; + Wed, 21 May 2014 02:59:01 -0700 (PDT) +Received: from localhost (5751dfa2.skybroadband.com. [87.81.223.162]) + by mx.google.com with ESMTPSA id + kp5sm21930823wjb.30.2014.05.21.02.59.00 for + (version=TLSv1.2 cipher=RC4-SHA bits=128/128); + Wed, 21 May 2014 02:59:00 -0700 (PDT) +From: Mark Walters +To: notmuch@notmuchmail.org, + David Edmondson +Subject: [PATCH] emacs: make sure tagging on an empty query is harmless +Date: Wed, 21 May 2014 10:58:50 +0100 +Message-Id: <1400666330-4363-1-git-send-email-markwalters1009@gmail.com> +X-Mailer: git-send-email 1.7.10.4 +In-Reply-To: <87iop0ynl2.fsf@qmul.ac.uk> +References: <87iop0ynl2.fsf@qmul.ac.uk> +X-BeenThere: notmuch@notmuchmail.org +X-Mailman-Version: 2.1.13 +Precedence: list +List-Id: "Use and development of the notmuch mail system." + +List-Unsubscribe: , + +List-Archive: +List-Post: +List-Help: +List-Subscribe: , + +X-List-Received-Date: Wed, 21 May 2014 09:59:09 -0000 + +Currently notmuch-tag throws a "wrong-type-argument stringp nil" if +passed a nil query-string. Catch this and provide a more useful error +message. This fixes a case in notmuch-tree (if you try to tag when at +the end of the buffer). + +Secondly, as pointed out by David (dme) +`notmuch-search-find-stable-query-region' can return the query string +() if there are no messages in the region. This gets passed to notmuch +tag, and due to interactions in the optimize_query code in +notmuch-tag.c becomes, in the case tag-change is -inbox, "( () ) and +(tag:inbox)". This query matches some strange collection of messages +which then get archived. This should probably be fixed, but in any +case make `notmuch-search-find-stable-query-region' return a nil +query-string in this case. + +This avoids data-loss (random tag removal) in this case. +--- + +This is my attempt to solve the same problem as the parent. I prefer +not throwing an error in n.s.f.s.q.r as it is difficult for the caller +to catch cleanly. Throwing it in notmuch-tag is fine as the caller can +trivially check for query-string being nil before calling notmuch-tag +if it wants to deal with it gracefully. + +If people do prefer an error in n.s.f.s.q.r as in the parent patch +then I think we should update the error message. The first hunk of +this should also be applied to catch nil queries to notmuch-tag gracefully. + +Although this has been present for a while I think it is a dataloss +issue so a fix should go in for 0.18.1 + +Best wishes + +Mark + + + + + emacs/notmuch-tag.el | 2 ++ + emacs/notmuch.el | 6 ++++-- + 2 files changed, 6 insertions(+), 2 deletions(-) + +diff --git a/emacs/notmuch-tag.el b/emacs/notmuch-tag.el +index 07c260e..f54aa9d 100644 +--- a/emacs/notmuch-tag.el ++++ b/emacs/notmuch-tag.el +@@ -387,6 +387,8 @@ (defun notmuch-tag (query tag-changes) + (unless (string-match-p "^[-+]\\S-+$" tag-change) + (error "Tag must be of the form `+this_tag' or `-that_tag'"))) + tag-changes) ++ (unless query ++ (error "Nothing to tag!")) + (unless (null tag-changes) + (run-hooks 'notmuch-before-tag-hook) + (if (<= (length query) notmuch-tag-argument-limit) +diff --git a/emacs/notmuch.el b/emacs/notmuch.el +index 6c0bc1b..1adea9c 100644 +--- a/emacs/notmuch.el ++++ b/emacs/notmuch.el +@@ -428,14 +428,16 @@ (defun notmuch-search-find-stable-query-region (beg end &optional only-matched) + "Return the stable query for the current region. + + If ONLY-MATCHED is non-nil, include only matched messages. If it +-is nil, include both matched and unmatched messages." ++is nil, include both matched and unmatched messages. If there are ++no messages in the region then return nil." + (let ((query-list nil) (all (not only-matched))) + (dolist (queries (notmuch-search-properties-in-region :query beg end)) + (when (first queries) + (push (first queries) query-list)) + (when (and all (second queries)) + (push (second queries) query-list))) +- (concat "(" (mapconcat 'identity query-list ") or (") ")"))) ++ (when query-list ++ (concat "(" (mapconcat 'identity query-list ") or (") ")")))) + + (defun notmuch-search-find-authors () + "Return the authors for the current thread" +-- +1.7.10.4 +