Re: [PATCH] Add configurable changed tag to messages that have been changed on disk

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+From: David Bremner <david@tethera.net>\r
+To: Gaute Hope <eg@gaute.vetsj.com>\r
+Subject: Re: [PATCH] Add configurable changed tag to messages that have been\r
+       changed on disk\r
+In-Reply-To: <1397163239-sup-5101@qwerzila>\r
+References: <1396800683-9164-1-git-send-email-eg@gaute.vetsj.com>\r
+       <87wqf2gqig.fsf@ta.scs.stanford.edu> <1397140962-sup-6514@qwerzila>\r
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+Date: Wed, 23 Apr 2014 07:05:02 +0900\r
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+Gaute Hope <eg@gaute.vetsj.com> writes:\r
+\r
+>\r
+> I am talking about syncing tags to a maildir _folder_, not flags. It\r
+> could be implemented as maildir.synchronize is now, but it would be a\r
+> larger feature which could work in a lot of different ways.\r
+>\r
+\r
+So to try and clarify the use case, this could be used to add a tag\r
+"changed" to each message-id that had one or more files\r
+moved/added/deleted on disk.  You would then retag that message using\r
+something like the output of notmuch search --output=files so that a set\r
+of tags corresponds to a set of folders containing the message. Is this\r
+correct?   I guess the proposed ctime information could be used for this\r
+as well, if it also tracked those non-tag related changes. I guess this\r
+would make it worse for David M's purposes (although presumeably still\r
+better than nothing).\r
+\r
+d\r