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The change in each case is to call notmuch_query_create_with_syntax,
relying on the already inherited shared options. As a bonus we get
improved error handling from the new query creation API.
The remaining subcommand is 'tag', which is a bit trickier.
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It turns out that now that we pass an open database into the
subcommands, it is easy to check any requested uuid against the
database at the same time as we process the other shared
arguments. This results in overall less boilerplate code, as well as
making a CLI scope function and variable file scope in notmuch.c.
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At this point it is unused in all subcommands.
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This is the result of running
$ uncrustify --replace --config devel/uncrustify.cfg *.c *.h
in the top level source directory
Line breaks were then adjusted manually to keep argc and argv
together.
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This conversion is trivial because the only configuration information
accessed by dump is that stored in the database (in order to dump
it). We do need to be careful to keep the write lock on the database
to ensure dump consistency.
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This will allow transitioning individual subcommands to the new
configuration framework. Eventually when they are all converted we can
remove the notmuch_config_t * argument.
For now, live with the parameter shadowing in some some subcommands;
it will go away when they are converted.
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These can be large, and hit buffer limitations of gzprintf.
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Similarly to GZPRINTF, this is a drop in replacement that can be
improved where needd.
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This will at least catch errors, and can be replaced with more
sophisticated error handling where appropriate.
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Although (as of 1.2.11) zlib checks this parameter before writing to
it, the docs don't promise to keep doing so, so be safe.
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Fixed: If the output file for a dump was non-writeable, gzclose_w()
was called twice on the output file handle, resulting in SIGABRT.
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This is the result of running
$ uncrustify --replace --config devel/uncrustify.cfg *.c *.h
in the top level source directory
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C99 stdbool turned 18 this year. There really is no reason to use our
own, except in the library interface for backward
compatibility. Convert the cli and test binaries to stdbool.
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Several changes at once, just to not have to change the same lines
several times over:
- Use designated initializers to initialize opt desc arrays.
- Only initialize the needed fields.
- Remove arg_id (short options) as unused.
- Replace opt_type and output_var with several type safe output
variables, where the output variable being non-NULL determines the
type. Introduce checks to ensure only one is set. The downside is
some waste of const space per argument; this could be saved by
retaining opt_type and using a union, but that's still pretty
verbose.
- Fix some variables due to the type safety. Mostly a good thing, but
leads to some enums being changed to ints. This is pedantically
correct, but somewhat annoying. We could also cast, but that defeats
the purpose a bit.
- Terminate the opt desc arrays using {}.
The output variable type safety and the ability to add new fields for
just some output types or arguments are the big wins. For example, if
we wanted to add a variable to set when the argument is present, we
could do so for just the arguments that need it.
Beauty is in the eye of the beholder, but I think this looks nice when
defining the arguments, and reduces some of the verbosity we have
there.
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Add in the analogous test for tags that is given for properties a few
lines below.
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Final 0.24.1 release
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Fix copy paste error.
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This function was deprecated in notmuch 0.21. We re-use the name for
a status returning version, and deprecate the _st name.
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Part of providing extensibility via properties is to make sure that user
data is not lost. Thus we need to be able to dump and restore
properties.
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This is mainly code movement, to make room in the loop over messages for
dumping properties.
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Many of the external links found in the notmuch source can be resolved
using https instead of http. This changeset addresses as many as i
could find, without touching the e-mail corpus or expected outputs
found in tests.
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Note that it changes the default dump output format, but doesn't break
existing notmuch-restore. It might break user scripts though.
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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.
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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.
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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.
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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.
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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.
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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.
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Also expose the dump function to the rest of notmuch. No functional
changes, except for slight improvement in error handling.
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No functional changes, except for slight improvement in error
handling.
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Although we didn't formally deprecate the old format, the new one has
been available for a year.
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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.
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This allows specifying config file as a top level argument to notmuch,
and generally makes it possible to override config file options in
main(), without having to touch the subcommands.
If the config file does not exist, one will be created for the notmuch
main command and setup and help subcommands. Help is special in this
regard; the config is created just to avoid errors about missing
config, but it will not be saved.
This also makes notmuch config the talloc context for subcommands.
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We now have a notmuch_config_is_new() function to query whether a
config was created or not. Change the notmuch_config_open() is_new
parameter into boolean create_new to determine whether the function
should create a new config if one doesn't exist. This reduces the
complexity of the API.
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This switches the new batch-tag format away from using a home-grown
hex-encoding scheme for message IDs in the dump to simply using Xapian
queries with Xapian quoting syntax.
This has a variety of advantages beyond presenting a cleaner and more
consistent interface. Foremost is that it will dramatically simplify
the quoting for batch tagging, which shares the same input format.
While the hex-encoding is no better or worse for the simple ID queries
used by dump/restore, it becomes onerous for general-purpose queries
used in batch tagging. It also better handles strange cases like
"id:foo and bar", since this is no longer syntactically valid.
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When we switch to using regular Xapian queries in the dump format, \n
will cause problems, so we disallow it. Specially, while Xapian can
quote and parse queries containing \n without difficultly, quoted
queries containing \n still span multiple lines, which breaks the
line-orientedness of the dump format. Strictly speaking, we could
still round-trip these, but it would significantly complicate restore
as well as scripts that deal with tag dumps. This complexity would
come at absolutely no benefit: because of the RFC 2822 unfolding
rules, no amount of standards negligence can produce a message with a
message ID containing a line break (not even Outlook can do it!).
Hence, we simply disallow it.
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sup is the old format, and remains the default, at least until
restore is converted to parse this format.
Each line of the batch-tag format is modelled on the syntax of notmuch tag:
- "notmuch tag" is omitted from the front of the line
- The dump format only uses query strings of a single message-id.
- Each space seperated tag/message-id is 'hex-encoded' to remove
trouble-making characters.
- It is permitted (and will be useful) for there to be no tags before
the query.
In particular this format won't have the same problem with e.g. spaces
in message-ids or tags; they will be round-trip-able.
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More uncrustify at work.
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The syntax --output=filename is a smaller change than deleting the
output argument completely, and conceivably useful e.g. when running
notmuch under a debugger.
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It has been a long-standing issue that notmuch_database_open doesn't
return any indication of why it failed. This patch changes its
prototype to return a notmuch_status_t and set an out-argument to the
database itself, like other functions that return both a status and an
object.
In the interest of atomicity, this also updates every use in the CLI
so that notmuch still compiles. Since this patch does not update the
bindings, the Python bindings test fails.
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Adapt the notmuch binaries source to the notmuch_database_close split.
Signed-off-by: Justus Winter <4winter@informatik.uni-hamburg.de>
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The output file is handled via positional arguments. There are
currently no "normal" options.
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Asking xapian to sort the messages for us causes suboptimal IO patterns. This
would be useful, if we only wanted the first few results, but since we want
everything anyway, this is pessimization.
On 2011-10-29, a measurement on a 372981 messages instance showed that wall
time can be reduced from 28 minutes (sorted by Message-ID) to 15 minutes
(unsorted).
Timings on 189605 messages:
$ time notmuch.old dump
19.48user 5.83system 12:10.42elapsed 3%CPU (0avgtext+0avgdata 110656maxresident)k
3629584inputs+22720outputs (33major+7073minor)pagefaults 0swaps
$ echo 3 > /proc/sys/vm/drop_caches
$ time notmuch.new
14.89user 1.20system 3:23.58elapsed 7%CPU (0avgtext+0avgdata 46032maxresident)k
1256264inputs+22464outputs (43major+1990minor)pagefaults 0swaps
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previously we deleted the subcommand name from argv before passing to
the subcommand. In this version, the deletion is done in the actual
subcommands. Although this causes some duplication of code, it allows
us to be more flexible about how we parse command line arguments in
the subcommand, including possibly using off-the-shelf routines like
getopt_long that expect the name of the command in argv[0].
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We print an intentionally non-specific message on stderr, since it
isn't clear if there will be some global output file argument to
replace.
We update the test suite atomically, since it relies on having the
same text in two files.
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The main motivation here is allow the fast dumping of tag data for
messages having certain tags. In practice it seems too slow to pipe
dump to grep.
All dump-restore tests should be working now, so we update test/dump-restore
accordingly
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We permit -- as an "option processing terminator".
Currently this does not do anything useful, but we plan to add
search terms after the --.
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We rename 'has_more' to 'valid' so that it can function whether
iterating in a forward or reverse direction. We also rename
'advance' to 'move_to_next' to setup parallel naming with
the proposed functions 'move_to_first', 'move_to_last', and
'move_to_previous'.
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