From: David Bremner <david@tethera.net>
Date: Sun, 22 May 2016 14:28:57 +0000 (+2100)
Subject: RFC: message property API
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=2872a8be0e27e3d35e39a62968da739406254e81;p=notmuch-archives.git

RFC: message property API
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+From: David Bremner <david@tethera.net>
+To: notmuch@notmuchmail.org
+Subject: RFC: message property API
+Date: Sun, 22 May 2016 11:28:57 -0300
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+
+People (or maybe just dkg) have proposed various bits of user metadata
+to attach to messages
+
+   - references to be added or blacklisted
+   - encryption related key material
+
+Since such metadata would be not-reproducible from the message files,
+it would be "precious" and need a backup/restore path.
+
+This is a prototype of a library API to support that.
+    
+Some things to note:
+    
+    - This is tested on top of my libconfig [1] series, but I think there is no
+      logical dependency
+    
+    - there are no docs, see the tests
+    
+    - this is just the low level api; it would need to be extended in a
+      similar way to the libconfig series to dump and restore metadata.
+      This might require modifying/extending the API to dump all properties
+      for a message. That should be a relatively small change.
+    
+    - it also be useful to be able delete all (key,value) pairs with a given
+      key.
+    
+    - this should really go through the existing caching mechanism used by
+      e.g. tags, or at least not invalidate that cache.
+    
+[1] id:1463135893-7471-6-git-send-email-david@tethera.net
+