X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=howto.mdwn;h=16d1ddd38eade748f37cd80c419a08883620309f;hb=ae90ab28e97d46fd416a105936b44dfd0f08696f;hp=f0673087f3cfb474c07dd5d90b8b187455c9b333;hpb=22f25b55898bee292bb841b9baec2865de470122;p=notmuch-wiki

diff --git a/howto.mdwn b/howto.mdwn
index f067308..16d1ddd 100644
--- a/howto.mdwn
+++ b/howto.mdwn
@@ -26,26 +26,25 @@ various "third party" notmuch utilities.
 
   * [fetchmail](http://fetchmail.berlios.de/)
 
-  See the [[initial_tagging]] page for more info on intial tagging of messages.
+  See the [[initial_tagging]] page for more info on initial tagging of messages.
 
-* <span id="print_filenames">**Print only filenames of a search (python bindings)**</span>
+* <span id="python">**Use notmuch from python**</span>
 
-  Notmuch includes [python bindings](http://pypi.python.org/pypi/notmuch)
-  to the notmuch shared library. Extensive API documentation
-  [is available](http://packages.python.org/notmuch).
+  Notmuch includes python bindings to the notmuch shared
+  library. Extensive API documentation [is
+  available](http://notmuchmail.readthedocs.org/).
 
   The bindings are very simple to use.  As an example, given you have
   the python bindings installed (or simply set your PYTHONPATH
   environment variable to point to the .../bindings/python directory),
-  this script will print the filenames of a matching search:
+  this snippet will produce a list of mails matching the given
+  expression:
 
-                             #!/usr/bin/env python
-                             import sys
-                             import notmuch
-                             search = " ".join(sys.argv[1:])
-                             q = notmuch.Database().create_query(search)
-                             for m in q.search_messages():
-                                 print m.get_filename()
+          >>> import notmuch
+          >>> db = notmuch.Database()
+          >>> query = db.create_query('tag:inbox AND NOT tag:killed')
+          >>> list(query.search_messages()) # doctest:+ELLIPSIS
+          [...]
 
 * <span id="sync_maildir_flags">**Sync notmuch tags and maildir flags**</span>
 
@@ -97,3 +96,45 @@ various "third party" notmuch utilities.
   [available](http://git.upsilon.cc/cgi-bin/gitweb.cgi?p=zack-homepage.git;a=history;f=blog/posts/2011/01/how_to_use_Notmuch_with_Mutt.mdwn)
   in markdown syntax from the Git repository of my homepage.)</small>
 
+* <span id="reapply_auto">**Automatically retagging the database (e.g., when upgrading versions)**</span>
+
+  Certain versions of notmuch include new automatic tags (for example, between
+  0.3 and 0.10, automatic tagging of signed and encrypted messages was added).
+  However, for users running with databases created in older versions of
+  notmuch, these tags are missing in pre-existing messages and need to be
+  added.  One way to do this is as follows:
+
+                           $ notmuch dump ~/out.nm
+                           $ mv ~/Mail/.notmuch ~/.notmuch.bak
+                           $ notmuch new
+                           $ notmuch tag -inbox -unread '*'
+                           $ notmuch restore --accumulate ~/out.nm
+
+  At this point, one should run a sanity check on the tags, and if everything
+  has merged correctly, the ~/.notmuch.bak directory is expendable, as is
+  ~/out.nm.
+
+* <span id="nbox">**Dealing with mbox and other formats**</span>
+
+  notmuch by itself is unable to handle non-maildir mail archives.  One tool
+  to solve this is called mb2md.  Assuming an mbox in ~/test.mbox and ones
+  mail archives to be in ~/Mail, an invocation would look like
+
+                           $ mb2md -s ~/test.mbox -d ~/Mail/mynewmaildirname
+
+  Note that specifying the paths for -s and -d is necessary.  This will create
+  a new maildir in ~/Mail/mynewmaildirname from the mbox at ~/test.mbox.
+
+  Often the formats are more convoluted, however.  Many lists provide an
+  almost-but-not-quite-mbox format that mailman produces, as can be seen, for
+  example, [here](http://lists.xapian.org/pipermail/xapian-devel/).  These
+  files can be converted with some degree of success to mbox using the script
+  found
+  [here](http://www.hermann-uwe.de/blog/converting-mailman-gzipd-text-archive-files-to-proper-mbox-files),
+  and from mbox to maildir as above.
+
+  However, many of these lists also have a gmane version, which, where it
+  exists, achieves far better results than dealing with the messy mailman
+  output.  Using the instructions from [Gmane's
+  site](http://gmane.org/export.php), we can download an mbox file, which we
+  can then convert to maildir using mb2md or other utility.