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+From: Stefano Zacchiroli <zack@upsilon.cc>\r
+To: notmuch@notmuchmail.org\r
+Subject: notmuch-mutt: support for messages that lack Message-ID (v2)\r
+Date: Mon, 9 Feb 2015 10:41:28 +0100\r
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+\r
+Heya, please find attached the second take on adding support for\r
+messages that lack Message-ID to notmuch-mutt. For context see\r
+http://notmuchmail.org/pipermail/notmuch/2015/thread.html#20079\r
+\r
+In this new verison of the patch we start computing the SHA1\r
+incrementally, in case no Message-ID will be found. As soon as the\r
+header is over we parse it (using Mail::Header, to properly handle\r
+line breaks). If a Message-ID is found, it is retourned and SHA1\r
+computation on the rest of the message is aborted. If no Message-ID is\r
+found, SHA1 computation continues, and is used in the end to\r
+synthesize a fake Message-ID in the same way that notmuch itself would\r
+to.\r
+\r
+Note that, contrary to the previous version, no changes of the Debian\r
+packaging are needed this time: Mail::Header is contained in the same\r
+package of Mail::Internet that notmuch-mutt was already using, and\r
+Digest::SHA is shipped with Perl itself.\r
+\r
+Please consider applying this patch to notmuch's master branch.\r
+\r
+Cheers.\r
+\r