[PATCH] Mailstore abstraction v4 - part 2 (maildir synchronization)

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+From: Michal Sojka <sojkam1@fel.cvut.cz>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH] Mailstore abstraction v4 - part 2 (maildir synchronization)\r
+Date: Thu,  8 Apr 2010 17:13:11 +0200\r
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+\r
+This is the second part of mailstore abstraction patches. I do not\r
+want this to be merged yet, but there might be some people interested\r
+in testing this.\r
+\r
+This patch adds a mailstore, which bi-directionally synchronizes\r
+certain tags with maildir flags.\r
+\r
+I use it already four weeks and it works quite well. There are the\r
+following know bugs:\r
+\r
+1) Viewing/storing of attachments of unread messages doesn't work. The\r
+   reason is that when you view the message its unread tag is removed\r
+   by elisp code. This leads to rename of the file, but Emacs still\r
+   uses the original name to access message with the attachment.\r
+\r
+   Workaround: close the message and open it again.\r
+\r
+   I'm working on the solution - if the mailstore cannot open the\r
+   message with the name passed, it tries different names with\r
+   different maildir flags.\r
+\r
+2) If there several messages with the same ID (e.g. one in sent folder\r
+   and one sent back by mailing list), the flags are synchronized to\r
+   only one of these files.\r
+\r
+   I plan to do this:\r
+\r
+   - When a tag is added/removed in notmuch, flags of all\r
+     files corresponding to the message will be updated.\r
+   - If we detect (during notmuch new) that flags of one file were\r
+     changed by somebody else, we also change the flags for the other\r
+     files corresponding to the message.\r
+   - If we detect (during notmuch new) that flags of two or more files\r
+     were changed by somebody else, we have to solve the conflict\r
+     somehow, but I didn't invent how, yet.\r
+\r
+The full series is available at\r
+http://rtime.felk.cvut.cz/gitweb/notmuch.git/shortlog/refs/heads/mailstore-abstraction-v4\r
+and can be pulled by\r
+\r
+   git pull git://rtime.felk.cvut.cz/notmuch.git mailstore-abstraction-v4\r
+\r
+Besides the patch sent here, there are also tests for the maildir\r
+mailstore and a not finished implementation of the solution for 1)\r
+above.\r
+\r
+--Michal\r
+   \r