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Remove incorrect skipping to first match from init(), and add explicit
skip_to() and check() methods to work around xapian-core bug (the
check() method will also improve speed when filtering by one of
these).
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We filter added exclude at add time, rather than modifying the query by
count search. As noted in the comments, there are several ignored
conditions here.
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The main goal is to prepare the way for non-destructive (or at least
less destructive) exclude tag handling. It does this by having a
pre-parsed query available for further processing. This also allows us
to provide slightly more precise error messages.
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Fix warning caught by clang:
lib/regexp-fields.cc:41:2: warning: 'delete' applied to a pointer that was allocated
with 'new[]'; did you mean 'delete[]'? [-Wmismatched-new-delete]
delete buffer;
^
[]
lib/regexp-fields.cc:37:17: note: allocated with 'new[]' here
char *buffer = new char[len];
^
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mid: is the url scheme suggested by URL 2392. We also plan to
introduce more flexible searches for mid: than are possible with
id: (in order not to break assumptions about the special behaviour of
id:, e.g. identifying at most one message).
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the idea is that you can run
% notmuch search subject:/<your-favourite-regexp>/
% notmuch search from:/<your-favourite-regexp>/
or
% notmuch search subject:"your usual phrase search"
% notmuch search from:"usual phrase search"
This feature is only available with recent Xapian, specifically
support for field processors is needed.
It should work with bindings, since it extends the query parser.
This is easy to extend for other value slots, but currently the only
value slots are date, message_id, from, subject, and last_mod. Date is
already searchable; message_id is left for a followup commit.
This was originally written by Austin Clements, and ported to Xapian
field processors (from Austin's custom query parser) by yours truly.
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This is a bit more code than hardcoding the two existing field
processors, but it should make it easy to add more.
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Currently the view number is incremented by notmuch_database_reopen
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The retries are hardcoded to a small number, and error handling aborts
than propagating errors from notmuch_database_reopen. These are both
somewhat justified by the assumption that most things that can go
wrong in Xapian::Database::reopen are rare and fatal. Here's the brief
discussion with Xapian upstream:
24-02-2017 08:12:57 < bremner> any intuition about how likely
Xapian::Database::reopen is to fail? I'm catching a
DatabaseModifiedError somewhere where handling any further errors is
tricky, and wondering about treating a failed reopen as as "the
impossible happened, stopping"
24-02-2017 16:22:34 < olly> bremner: there should not be much scope for
failure - stuff like out of memory or disk errors, which are probably a
good enough excuse to stop
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The main expected use is to recover from a Xapian::DatabaseChanged
exception.
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Merge in g_hash_table read-after-free fix
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It's not called outside message.cc
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It's not called anywhere outside message.cc.
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The two g_hash_table functions (insert, add) have different behaviour
with respect to existing keys. g_hash_table_insert frees the new key,
while g_hash_table_add (which is really g_hash_table_replace in
disguise) frees the existing key. With this change 'ref' is live until
the end of the function (assuming single-threaded access to
'hash'). We can't guarantee it will continue to be live in the
future (i.e. there may be a future key duplication) so we copy it with
the allocation context passed to parse_references (in practice this is
the notmuch_message_t object whose parents we are finding).
Thanks to Tomi for the simpler approach to the problem based on
reading the fine glib manual.
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It turns out this is exactly what release() is for; Xapian will
deallocate the objects when it's done with them.
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Replace multiple tables with some flags in a single table. This makes
the code in notmuch_database_open_verbose a bit shorter, and it should
also make it easier to add other options to fields, e.g. regexp
searching.
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From #xapian
olly> bremner: btw, i noticed notmuch count see ms to request all the documents and then ignores them
bremner> hmm. There's something funny about the way that notmuch uses matches in general iirc
olly> it should be able to do: mset = enquire.get_mset (0, 0, notmuch->xapian_db->get_doccount ());
...
olly> get_matches_estimated() will be exact because check_at_least is the size of the database
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It returns the value, not the key.
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We already depend on glib both directly and indirectly (via gmime). We
might as well make use of its facilities. Drop the embedded libsha1
and use glib for sha1 digests.
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The todo comment got separated from the status it's related to at
commit 3f32fd8a1c06 ("Add missing comment for
NOTMUCH_STATUS_READONLY_DATABASE."). Later, commit b65ca8e0ba5e ("lib:
modify notmuch.h for automatic document generation") moved it, but to
the wrong place. Fix the location.
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This is not ideal, but the new API is not available in Xapian 1.2.x, and
it seems to soon to depend on Xapian >= 1.4
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This will make notmuch incompatible with Xapian before 1.1.0, which is
more than 6 years old this point.
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The API was already documented, but for future readers note when the
functions were added,
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It seems that no-one tried to compile without Xapian compact support
since March of 2015, since that's when I introduced a syntax error in
that branch of the ifdef.
Given the choice of maintaining this underused branch of code, or
bumping the Xapian dependency to a version from 2011, it seems
reasonable to do the latter.
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This should not change the SONAME, and therefore won't change the
dynamic linking behaviour, but it may help some users debug missing
symbols in case their libnotmuch is too old.
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Found by gcc 6.1.1 -Wmisleading-indentation option (set by -Wall).
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This is needed so that when the map is modified during traversal, and
thus unlinked by the database code, the map is not disposed of until the
iterator is done with it.
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We want to be able to query the properties directly, like:
notmuch count property:foo=bar
which should return a count of messages where the property with key
"foo" has value equal to "bar".
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This is a thin wrapper around the string map iterator API just introduced.
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Support for prefix based iterators is perhaps overengineering, but I
wanted to mimic the existing database_config API.
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Initially, support get, set and removal of single key/value pair, as
well as removing all properties.
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The choice of array implementation is deliberate, for future iterator support
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This is a first step towards providing an API to attach
arbitrary (key,value) pairs to messages and retrieve all of the values
for a given key.
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Without this change, the following code fails
notmuch_directory_set_mtime(dir, 12345);
assert(notmuch_directory_get_mtime(dir) == 12345);
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I believe the current one is misleading, because in my experiments
Xapian did not add : when prefix and term were both upper case. Indeed,
it's hard to see how it could, because prefixes are added at a layer
above Xapian in our code. See _notmuch_message_add_term for an example.
Also try to explain why this is a good idea. As far as I can ascertain,
this is more of an issue for a system trying to work with an unknown set
of prefixes. Since notmuch has a fixed set of prefixes, and we can
hopefully be trusted not to add XGOLD and XGOLDEN as prefixes, it is
harder for problems to arise.
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_notmuch_database_log clears the log buffer each time. Rather than
introducing more complicated semantics about for this function, provide
a second function that does not clear the buffer. This is mainly a
convenience function for callers constructing complex or multi-line log
messages.
The changes to query.cc are to make sure that the common code path of
the new function is tested.
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This support will be present only if the appropriate version of xapian
is available _and_ the user did not disable the feature when
building. So there really needs to be some way for the user to check.
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Xapian 1.3 has introduced the DB_RETRY_LOCK flag (Xapian bug
275). Detect it in configure and optionally use it. With this flag
commands that need the write lock will wait for their turn instead of
aborting when it's not immediately available.
Amended by db: allow disabling in configure
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We could add many null pointer checks, but currently I don't see a use
case that justifies it.
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Fix bug reported in id:20160606124522.g2y2eazhhrwjsa4h@flatcap.org
Although the C99 standard 6.10 is a little non-obvious on this point,
the docs for e.g. gcc are unambiguous. And indeed in practice with the
extra space, this code fails
#include <stdio.h>
#define foo (x) (x+1)
int main(int argc, char **argv){
printf("%d\n",foo(1));
}
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The field processor objects need to be deallocated explicitly just like
the range processors (or a talloc destructor defined).
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This probably should have been part of 3458e3c89c, but I missed it.
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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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Cleaned the following whitespace in lib/* files:
lib/index.cc: 1 line: trailing whitespace
lib/database.cc 5 lines: 8 spaces at the beginning of line
lib/notmuch-private.h: 4 lines: 8 spaces at the beginning of line
lib/message.cc: 1 line: trailing whitespace
lib/sha1.c: 1 line: empty lines at the end of file
lib/query.cc: 2 lines: 8 spaces at the beginning of line
lib/gen-version-script.sh: 1 line: trailing whitespace
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This relies on the optional presense of xapian field processors, and the
library config API.
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It's already kindof gross that this is hardcoded in two different
places. We will also need these later in field processors calling back
into the query parser.
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Since xapian provides the ability to restrict the iterator to a given
prefix, we expose this ability to the user. Otherwise we mimic the other
iterator interfances in notmuch (e.g. tags.c).
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This is a thin wrapper around the Xapian metadata API. The job of this
layer is to keep the config key value pairs from colliding with other
metadata by transparently prefixing the keys, along with the usual glue
to provide a C interface.
The split of _get_config into two functions is to allow returning of the
return value with different memory ownership semantics.
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This is intentionally low tech; if we have more than two options it may
make sense to build up what infrastructure is provided.
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This relies on the FieldProcessor API, which is only present in xapian
>= 1.3.
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