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<title>notmuch/notmuch-dump.c, branch 0.22_rc0</title>
<subtitle>thread-based email index, search, and tagging</subtitle>
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<updated>2015-09-23T11:03:34Z</updated>
<entry>
<title>cli: convert remainder of CLI to n_q_search_{messages,threads}_st</title>
<updated>2015-09-23T11:03:34Z</updated>
<author>
<name>David Bremner</name>
<email>david@tethera.net</email>
</author>
<published>2015-09-06T13:15:47Z</published>
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<id>urn:sha1:6cdd34a4c762c954426f586d514a3e041c1db3b0</id>
<content type='text'>
I think it would be no real problem to cut and paste the gdb based
error message test from count to the other clients modified here, but
I'm not currently convinced it's worth the trouble since the code path
being tested is almost the the same, and the tests are relatively
heavyweight.
</content>
</entry>
<entry>
<title>cli: add global option "--uuid"</title>
<updated>2015-08-14T16:23:49Z</updated>
<author>
<name>David Bremner</name>
<email>david@tethera.net</email>
</author>
<published>2015-04-05T22:39:55Z</published>
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<id>urn:sha1:f76d8f82dd004cf14426a91e8a80dcd2a4b97317</id>
<content type='text'>
The function notmuch_exit_if_unmatched_db_uuid is split from
notmuch_process_shared_options because it needs an open notmuch
database.

There are two exceptional cases in uuid handling.

1) notmuch config and notmuch setup don't currently open the database,
   so it doesn't make sense to check the UUID.

2) notmuch compact opens the database inside the library, so we either
   need to open the database just to check uuid, or change the API.
</content>
</entry>
<entry>
<title>cli: define shared options, use for --help and --version</title>
<updated>2015-06-01T05:32:54Z</updated>
<author>
<name>David Bremner</name>
<email>david@tethera.net</email>
</author>
<published>2015-04-05T13:13:03Z</published>
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<id>urn:sha1:0018a8d787a98f80c665061daa9b0c73839d3666</id>
<content type='text'>
Unfortunately it seems trickier to support --config globally

The non-trivial changes are in notmuch.c; most of the other changes
consists of blindly inserting two lines into every subcommand.
</content>
</entry>
<entry>
<title>dump: make dump take Xapian write lock</title>
<updated>2014-07-16T22:33:10Z</updated>
<author>
<name>Mark Walters</name>
<email>markwalters1009@gmail.com</email>
</author>
<published>2014-06-23T20:12:29Z</published>
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<id>urn:sha1:bbbdf0478ea6109afc1ca5a26a8d1cd86b600e2a</id>
<content type='text'>
Dump currently only takes the read lock. Xapian can cope with some
changes while maintaining a read snapshot but with more changes it
fails. Currently notmuch just gives a xapian error.

To avoid this we take the write lock when dumping. This prevents other
notmuch processes from modifying the xapian database preventing this
error.

Discussion with Olly on irc indicates that this is currently the best
solution: in xapian trunk there may be better possibilities using
snapshots but they need to make it to a release and propogate out to
users before we can switch approach.

Finally, this breaks one use case: pipelines of the form

notmuch dump | ... | notmuch restore

According to Olly this is already very fragile: it will only work on
small databases. One of the tests relies on this behaviour so fix that
to store the dump rather than use a pipe.
</content>
</entry>
<entry>
<title>notmuch-dump: use fsync instead of fdatasync</title>
<updated>2014-05-17T21:31:15Z</updated>
<author>
<name>David Bremner</name>
<email>david@tethera.net</email>
</author>
<published>2014-05-08T11:57:07Z</published>
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<id>urn:sha1:f3ee655b493c7e57621226a98abc9e9db5d0cb27</id>
<content type='text'>
Since the file size will have changed, there is no performance benefit
to calling fdatasync.  Somewhat surprisingly, using fdatasync
apparently causes portability problems on FreeBSD.
</content>
</entry>
<entry>
<title>dump: support gzipped and atomic output</title>
<updated>2014-04-12T10:59:44Z</updated>
<author>
<name>David Bremner</name>
<email>david@tethera.net</email>
</author>
<published>2014-03-29T01:14:51Z</published>
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<id>urn:sha1:3c13bc0321baaf340663779d6fce2b1f34c1c2c3</id>
<content type='text'>
The main goal is to support gzipped output for future internal
calls (e.g. from notmuch-new) to notmuch_database_dump.

The additional dependency is not very heavy since xapian already pulls
in zlib.

We want the dump to be "atomic", in the sense that after running the
dump file is either present and complete, or not present.  This avoids
certain classes of mishaps involving overwriting a good backup with a
bad or partial one.
</content>
</entry>
<entry>
<title>cli: abstract dump file open from the dump command</title>
<updated>2014-03-30T22:23:16Z</updated>
<author>
<name>Jani Nikula</name>
<email>jani@nikula.org</email>
</author>
<published>2014-03-25T17:48:57Z</published>
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<id>urn:sha1:3863755f6d9f3e7666c1484822384c036a4426c3</id>
<content type='text'>
Also expose the dump function to the rest of notmuch. No functional
changes, except for slight improvement in error handling.
</content>
</entry>
<entry>
<title>cli: abstract database dumping from the dump command</title>
<updated>2014-03-30T22:22:21Z</updated>
<author>
<name>Jani Nikula</name>
<email>jani@nikula.org</email>
</author>
<published>2014-03-25T17:07:49Z</published>
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<id>urn:sha1:2a79d81211664ca3f0cd1a847795d48bd66b8a3d</id>
<content type='text'>
No functional changes, except for slight improvement in error
handling.
</content>
</entry>
<entry>
<title>notmuch dump: default to batch-tag format.</title>
<updated>2014-01-24T12:52:09Z</updated>
<author>
<name>David Bremner</name>
<email>david@tethera.net</email>
</author>
<published>2014-01-23T13:02:46Z</published>
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<id>urn:sha1:f4167e6de86d071cd94721c2acc1397bf291a13c</id>
<content type='text'>
Although we didn't formally deprecate the old format, the new one has
been available for a year.
</content>
</entry>
<entry>
<title>cli: clean up exit status code returned by the cli commands</title>
<updated>2014-01-18T18:45:26Z</updated>
<author>
<name>Jani Nikula</name>
<email>jani@nikula.org</email>
</author>
<published>2014-01-10T21:28:53Z</published>
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<id>urn:sha1:c7453773064efbd0b2cd17b15ba483edbd28ce1e</id>
<content type='text'>
Apart from the status codes for format mismatches, the non-zero exit
status codes have been arbitrary. Make the cli consistently return
either EXIT_SUCCESS or EXIT_FAILURE.
</content>
</entry>
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