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This will permit the re-use of the same logic in the infix query
parser. The location of the shared code in the infix side is for
consistency with the other shared parsing logic. It will make more
sense when a Xapian field processor is added for the lastmod prefix.
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This is analogous to the "infix" prefix provided by the s-expression
based query parser.
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There is not much of a parser here yet, but it already does some
useful error reporting. Most functionality sketched in the
documentation is not implemented yet; detailed documentation will
follow with the implementation.
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In principle this could be done without depending on C++11 features,
but these features should be available since gcc 4.8.1, and this
localized usage is easy to replace if it turns out to be problematic
for portability.
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Reduce the size of database.cc, and prepare for extending the database
opening API
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Reduce the size of database.cc, and limit the scope of prefix_table,
make sure it's accessed via a well-defined internal API.
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database.cc is uncomfortably large, and some of the static data
structures do not need to be shared as much as they are.
This is a somewhat small piece to factor out, but it will turn out to
be helpful to further refactoring.
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Use `makefile-gmake-mode' instead of `makefile-mode' because the
former also highlights ifdef et al. while the latter does not.
"./Makefile.global" and one "Makefile.local" failed to specify any
major mode at all but doing so is necessary because Emacs does not
automatically figure out that these are Makefiles (of any flavor).
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This change allows queries of the form
thread:{from:me} and thread:{from:jian} and not thread:{from:dave}
This is still somewhat brute-force, but it's a big improvement over
both the shell script solution and the previous proposal [1], because it
does not build the whole thread structure just generate a
query. A further potential optimization is to replace the calls to
notmuch with more specialized Xapian code; in particular it's not
likely that reading all of the message metadata is a win here.
[1]: id:20170820213240.20526-1-david@tethera.net
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This reverts commit 4f5bbaf7e2cecfe5022ba4b28915cccfb7ccb12d.
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This change allows queries of the form
thread:{from:me} and thread:{from:jian} and not thread:{from:dave}
This is still somewhat brute-force, but it's a big improvement over
both the shell script solution and the previous proposal [1], because it
does not build the whole thread structure just generate a
query. A further potential optimization is to replace the calls to
notmuch with more specialized Xapian code; in particular it's not
likely that reading all of the message metadata is a win here.
[1]: id:20170820213240.20526-1-david@tethera.net
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Broken, again, by yours truly in bc11759dd1fd ("build: switch to
hiding libnotmuch symbols by default"). Reference notmuch.sym via
$(srctree).
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There are at least three places in notmuch that can trigger an
indexing action:
* notmuch new
* notmuch insert
* notmuch reindex
I have plans to add some indexing options (e.g. indexing the cleartext
of encrypted parts, external filters, automated property injection)
that should properly be available in all places where indexing
happens.
I also want those indexing options to be exposed by (and constrained
by) the libnotmuch C API.
This isn't yet an API break because we've never made a release with
notmuch_param_t.
These indexing options are relevant in the listed places (and in the
libnotmuch analogues), but they aren't relevant in the other kinds of
functionality that notmuch offers (e.g. dump/restore, tagging, search,
show, reply).
So i think a generic "param" object isn't well-suited for this case.
In particular:
* a param object sounds like it could contain parameters for some
other (non-indexing) operation. This sounds confusing -- why would
i pass non-indexing parameters to a function that only does
indexing?
* bremner suggests online a generic param object would actually be
passed as a list of param objects, argv-style. In this case (at
least in the obvious argv implementation), the params might be some
sort of generic string. This introduces a problem where the API of
the library doesn't grow as new options are added, which means that
when code outside the library tries to use a feature, it first has
to test for it, and have code to handle it not being available.
The indexopts approach proposed here instead makes it clear at
compile time and at dynamic link time that there is an explicit
dependency on that feature, which allows automated tools to keep
track of what's needed and keeps the actual code simple.
My proposal adds the notmuch_indexopts_t as an opaque struct, so that
we can extend the list of options without causing ABI breakage.
The cost of this proposal appears to be that the "boilerplate" API
increases a little bit, with a generic constructor and destructor
function for the indexopts struct.
More patches will follow that make use of this indexopts approach.
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This is really pure C string parsing, and doesn't need to be mixed in
with the Xapian/C++ layer. Although not strictly necessary, it also
makes it a bit more natural to call _parse_message_id from multiple
compilation units.
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'database.cc' is becoming a monster, and it's hard to follow what the
various static functions are used for. It turns out that about 1/3 of
this file notmuch_database_add_message and helper functions not used
by any other function. This commit isolates this code into it's own
file.
Some side effects of this refactoring:
- find_doc_ids becomes the non-static (but still private)
_notmuch_database_find_doc_ids
- a few instances of 'string' have 'std::' prepended, avoiding the
need for 'using namespace std;' in the new file.
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The dynamic generation of the linker version script for libnotmuch
exports has grown rather complicated.
Reverse the visibility control by hiding symbols by default using
-fvisibility=hidden, and explicitly exporting symbols in notmuch.h
using #pragma GCC visibility. (We could also use __attribute__
((visibility ("default"))) for each exported function, but the pragma
is more convenient.)
The above is not quite enough alone, as it would "leak" a number of
weak symbols from Xapian and C++ standard library. Combine it with a
small static version script that filters out everything except the
notmuch_* symbols that we explicitly exposed, and the C++ RTTI
typeinfo symbols for exception handling.
Finally, as the symbol hiding test can no longer look at the generated
symbol table, switch the test to parse the functions from notmuch.h.
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Apparently some systems (MacOS?) have a system library called libutil
and the name conflict causes problems. Since this library is quite
notmuch specific, rename it to something less generic.
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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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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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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 relies on the optional presense of xapian field processors, and the
library config API.
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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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- Make lib/notmuch.h the canonical location for the library versioning
information.
- Since the release-check should never fail now, remove it to reduce
complexity.
- Make the version numbers in notmuch.h consistent with the (now
deleted) ones in lib/Makefile.local
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This is to make it easier for clients of the library to update to the
new error code returning versions of notmuch_query_search_messages
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In particular this is supposed to help build on systems (presumably
using a non-gnu ld) where this flag is not available.
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The install_name of libnotmuch.dylib on Mac OS X is what is written
into a program that links against it. If it is just the name of the
shared library file, as opposed to the full path, the program won't be
able to find it when it runs and will abort. Instead, the install_name
should be the full path to the shared library (in its final installed
location).
Why does Notmuch work without this patch when installed via Homebrew?
The answer is twofold. One, /usr/local/lib is a special location in
which the dynamic linker will look by default to find shared libraries.
Homebrew highly recommends installing to /usr/local, and, assuming it
has been configured this way, the Notmuch library will end up installed
in /usr/local/lib, and the dynamic linker will find it. Two, Homebrew
globally corrects all install names in dynamically shared libraries and
binaries for each package it installs. So, even if the install names in
a package's binaries and libraries are incorrect, Homebrew corrects them
automatically, and no one ever knows.
Why does Notmuch work without this patch when installed via MacPorts?
The answer is that MacPorts applies a patch just like this patch to fix
the same problem.
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This indicates upwardly compatible changes, namely adding new symbols.
Although we don't formally need to do this until the next release,
there is no hard in doing it now, as long as we don't bump the minor
version for every addition between now and the release.
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Adding return values to notmuch_database_close and
notmuch_database_destroy may require bumping the soname.
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This version of the library introduces LIBNOTMUCH_CHECK_VERSION and
the *_VERSION macros. Bumping the version number is also necessary to
make the comment on LIBNOTMUCH_CHECK_VERSION no longer a lie.
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We have two distinct "library version" numbers: the soname version and
the version macros. We need both for different reasons: the version
macros enable easy compile-time version detection (and conditional
compilation), while the soname version enables runtime version
detection (which includes the version checking done by things like the
Python bindings).
However, currently, these two version numbers are different, which is
unnecessary and can lead to confusion (especially in things like
Debian, which include the soname version in the package name). This
patch makes them the same by bumping the version macros up to agree
with the soname version.
(We should probably keep the version number in just one place so they
can't get out of sync, but that can be done in another patch.)
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Add a custom value range processor to enable date and time searches of
the form date:since..until, where "since" and "until" are expressions
understood by the previously added date/time parser, to restrict the
results to messages within a particular time range (based on the Date:
header).
If "since" or "until" describes date/time at an accuracy of days or
less, the values are rounded according to the accuracy, towards past
for "since" and towards future for "until". For example,
date:november..yesterday would match from the beginning of November
until the end of yesterday. Expressions such as date:today..today
means since the beginning of today until the end of today.
Open-ended ranges are supported (since Xapian 1.2.1), i.e. you can
specify date:..until or date:since.. to not limit the start or end
date, respectively.
CAVEATS:
Xapian does not support spaces in range expressions. You can replace
the spaces with '_', or (in most cases) '-', or (in some cases) leave
the spaces out altogether.
Entering date:expr without ".." (for example date:yesterday) will not
work as you might expect. You can achieve the expected result by
duplicating the expr both sides of ".." (for example
date:yesterday..yesterday).
Open-ended ranges won't work with pre-1.2.1 Xapian, but they don't
produce an error either.
Signed-off-by: Jani Nikula <jani@nikula.org>
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OpenBSD's build flags are identical to FreeBSD, except that libraries
need to be explicitly linked against libc. No code changes are
necessary.
From: Cody Cutler <ccutler@csail.mit.edu>
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We've changed the APIs of notmuch_database_open,
notmuch_database_create, and notmuch_database_close.
Amended by db: also bump string in bindings/python/notmuch/globals.py
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For some reason, on my machine, the link is picking up
/usr/lib/libutil.so instead of util/libutil.a. This causes there to be
undefined symbols in libnotmuch, making it unuseable. This patch causes
the link to fail instead.
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glibc includes a libutil, so if the wrong -L options get passed, we
will pick up glibc's version, rather than our own.
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We keep the lib/xutil.c version. As a consequence, also factor out
_internal_error and associated macros. It might be overkill to make a
new file error_util.c for this, but _internal_error does not really
belong in database.cc.
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lib/notmuch.h and lib/gen-version-script.sh couldn't have been found
when building out of sources directory.
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Based on discussions with amdragon, tschwinge, and others on IRC, I concluded that
1) symbol versioning was probably overkill for libnotmuch
2) It was also probably GNU ld specific
3) Most importantly, nobody could tell me on short notice how exactly it works.
So since the change to the notmuch_database_find_message breaks the
previous ABI, we need to bump the SONAME.
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This bump is because of the new symbols introduced by the atomicity
patches.
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If the notmuch.sym target does not explicitly depend on $(libnotmuch_modules),
gen-version-script.sh may be run before all the .o files are created, for
example when doing a parallel build on a machine with many cores.
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Conflicts:
lib/Makefile.local
The conflicts are from three kinds of commits not merged into release:
- typo fixes
- removal of debug output
- fix for CLEAN rule
That were never merged into the release branch.
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The lack of such exporting seems to cause problems catching
exceptions, as suggested by
http://gcc.gnu.org/wiki/Visibility
This manifested in the symbol-hiding test failing when notmuch was
compile with gcc 4.4.5. On i386, this further manifested as notmuch
new failing to run (crashing with an uncaught exception on first run).
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Fixes broken build on DragonFly BSD
Signed-off-by: Robin Green <greenrd@greenrd.org>
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The removed "echo $(libnotmuch_modules)" was strictly for debugging.
Thanks to Austin Clements for the hint.
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Carl reports "gcc -aux-info notmuch.aux lib/notmuch.h" does not
generate notmuch.aux for him with Debian gcc 4.6.0-8. A small
modification of the original sed regular expression allows us to work
directly from lib/notmuch.h, rather than preprocessing with gcc.
As with most such simple regex based "parsing", this is quite
sensitive to the input format, and needs that each symbol to be
exported from libnotmuch should
- start with "notmuch_"
- be the first non-whitespace token on the line
- be followed by an open parenthesis.
(Cherry-picked from 51b7ab69687, with conflicts resolved by db)
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Carl reports "gcc -aux-info notmuch.aux lib/notmuch.h" does not
generate notmuch.aux for him with Debian gcc 4.6.0-8. A small
modification of the original sed regular expression allows us to work
directly from lib/notmuch.h, rather than preprocessing with gcc.
As with most such simple regex based "parsing", this is quite
sensitive to the input format, and needs that each symbol to be
exported from libnotmuch should
- start with "notmuch_"
- be the first non-whitespace token on the line
- be followed by an open parenthesis.
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