Re: [PATCH 6/6] WIP: support XDG database directory

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+From: Tomi Ollila <tomi.ollila@iki.fi>\r
+To: David Bremner <david@tethera.net>, notmuch@notmuchmail.org\r
+Subject: Re: [PATCH 6/6] WIP: support XDG database directory\r
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+Date: Mon, 14 Mar 2016 20:06:49 +0200\r
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+\r
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+This is good opening for (eventually "fixing" e.g. library interface...);\r
+in its current state I can come up 2 (easily solvable) problems\r
+\r
+1) the xapian database holding email indexes can grow to be quite large;\r
+user may have large space for emails (somewhere else than HOME) but small\r
+HOME. This can be "fixed" by keeping the database still in the same hierarchy\r
+as email files. Making user to point XDG_DATA_HOME elsewhere is (I) global\r
+and (II) fragile for an user to do.\r
+\r
+2) User may have multiple separate email configurations under one user\r
+account; This is easy to fix with environment variable; if exists,\r
+overrides XDG_DATA_HOME or $HOME/.local/share -- actually if this holds\r
+"only" configurations, the XDG_CONFIG_HOME is more appropriate\r
+(again, in simple case users should not be bothered to set any environment\r
+variables themselves, but should be able to survive with large databases).\r
+\r
+(standard disclaimer apply :)\r
+\r
+Tomi\r
+\r
+\r
+PS: I have not (yet) looked the other patches; been too\r
+busy writing code to my personal htpc environment...\r