mirror of
https://git.notmuchmail.org/git/notmuch
synced 2024-11-24 20:08:10 +01:00
1fd8b7866f
This was a poor workaround around the fact that the existing notmuch_threads_t object is implemented poorly. It's got a fine iterartor-based interface, but the implementation does all of the work up-front in _create rather than doing the work incrementally while iterating. So to start fixing this, first get rid of all the hacks we had working around this. This drops the --first and --max-threads options from the search command, (but hopefully nobody was using them anyway---notmuch.el certainly wasn't).
308 lines
8.1 KiB
C++
308 lines
8.1 KiB
C++
/* query.cc - Support for searching a notmuch database
|
|
*
|
|
* Copyright © 2009 Carl Worth
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see http://www.gnu.org/licenses/ .
|
|
*
|
|
* Author: Carl Worth <cworth@cworth.org>
|
|
*/
|
|
|
|
#include "notmuch-private.h"
|
|
#include "database-private.h"
|
|
|
|
#include <glib.h> /* GHashTable, GPtrArray */
|
|
|
|
#include <xapian.h>
|
|
|
|
struct _notmuch_query {
|
|
notmuch_database_t *notmuch;
|
|
const char *query_string;
|
|
notmuch_sort_t sort;
|
|
};
|
|
|
|
struct _notmuch_messages {
|
|
notmuch_database_t *notmuch;
|
|
Xapian::MSetIterator iterator;
|
|
Xapian::MSetIterator iterator_end;
|
|
};
|
|
|
|
struct _notmuch_threads {
|
|
notmuch_database_t *notmuch;
|
|
GPtrArray *threads;
|
|
unsigned int index;
|
|
};
|
|
|
|
notmuch_query_t *
|
|
notmuch_query_create (notmuch_database_t *notmuch,
|
|
const char *query_string)
|
|
{
|
|
notmuch_query_t *query;
|
|
|
|
#ifdef DEBUG_QUERY
|
|
fprintf (stderr, "Query string is:\n%s\n", query_string);
|
|
#endif
|
|
|
|
query = talloc (NULL, notmuch_query_t);
|
|
if (unlikely (query == NULL))
|
|
return NULL;
|
|
|
|
query->notmuch = notmuch;
|
|
|
|
query->query_string = talloc_strdup (query, query_string);
|
|
|
|
query->sort = NOTMUCH_SORT_NEWEST_FIRST;
|
|
|
|
return query;
|
|
}
|
|
|
|
void
|
|
notmuch_query_set_sort (notmuch_query_t *query, notmuch_sort_t sort)
|
|
{
|
|
query->sort = sort;
|
|
}
|
|
|
|
notmuch_messages_t *
|
|
notmuch_query_search_messages (notmuch_query_t *query,
|
|
int first,
|
|
int max_messages)
|
|
{
|
|
notmuch_database_t *notmuch = query->notmuch;
|
|
const char *query_string = query->query_string;
|
|
notmuch_message_list_t *message_list;
|
|
Xapian::MSetIterator i;
|
|
|
|
message_list = _notmuch_message_list_create (query);
|
|
if (unlikely (message_list == NULL))
|
|
return NULL;
|
|
|
|
try {
|
|
Xapian::Enquire enquire (*notmuch->xapian_db);
|
|
Xapian::Query mail_query (talloc_asprintf (query, "%s%s",
|
|
_find_prefix ("type"),
|
|
"mail"));
|
|
Xapian::Query string_query, final_query;
|
|
Xapian::MSet mset;
|
|
unsigned int flags = (Xapian::QueryParser::FLAG_BOOLEAN |
|
|
Xapian::QueryParser::FLAG_PHRASE |
|
|
Xapian::QueryParser::FLAG_LOVEHATE |
|
|
Xapian::QueryParser::FLAG_BOOLEAN_ANY_CASE |
|
|
Xapian::QueryParser::FLAG_WILDCARD |
|
|
Xapian::QueryParser::FLAG_PURE_NOT);
|
|
|
|
if (strcmp (query_string, "") == 0) {
|
|
final_query = mail_query;
|
|
} else {
|
|
string_query = notmuch->query_parser->
|
|
parse_query (query_string, flags);
|
|
final_query = Xapian::Query (Xapian::Query::OP_AND,
|
|
mail_query, string_query);
|
|
}
|
|
|
|
switch (query->sort) {
|
|
case NOTMUCH_SORT_OLDEST_FIRST:
|
|
enquire.set_sort_by_value (NOTMUCH_VALUE_TIMESTAMP, FALSE);
|
|
break;
|
|
case NOTMUCH_SORT_NEWEST_FIRST:
|
|
enquire.set_sort_by_value (NOTMUCH_VALUE_TIMESTAMP, TRUE);
|
|
break;
|
|
case NOTMUCH_SORT_MESSAGE_ID:
|
|
enquire.set_sort_by_value (NOTMUCH_VALUE_MESSAGE_ID, FALSE);
|
|
break;
|
|
}
|
|
|
|
#if DEBUG_QUERY
|
|
fprintf (stderr, "Final query is:\n%s\n", final_query.get_description().c_str());
|
|
#endif
|
|
|
|
enquire.set_query (final_query);
|
|
|
|
if (max_messages == -1)
|
|
max_messages = notmuch->xapian_db->get_doccount ();
|
|
mset = enquire.get_mset (first, max_messages);
|
|
|
|
for (i = mset.begin (); i != mset.end (); i++) {
|
|
notmuch_message_t *message;
|
|
notmuch_private_status_t status;
|
|
|
|
message = _notmuch_message_create (message_list, notmuch,
|
|
*i, &status);
|
|
if (message == NULL)
|
|
{
|
|
if (status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND)
|
|
INTERNAL_ERROR ("A message iterator contains a "
|
|
"non-existent document ID.\n");
|
|
break;
|
|
}
|
|
|
|
_notmuch_message_list_add_message (message_list, message);
|
|
}
|
|
|
|
} catch (const Xapian::Error &error) {
|
|
fprintf (stderr, "A Xapian exception occurred performing query: %s\n",
|
|
error.get_msg().c_str());
|
|
fprintf (stderr, "Query string was: %s\n", query->query_string);
|
|
notmuch->exception_reported = TRUE;
|
|
}
|
|
|
|
return _notmuch_messages_create (message_list);
|
|
}
|
|
|
|
/* Glib objects force use to use a talloc destructor as well, (but not
|
|
* nearly as ugly as the for messages due to C++ objects). At
|
|
* this point, I'd really like to have some talloc-friendly
|
|
* equivalents for the few pieces of glib that I'm using. */
|
|
static int
|
|
_notmuch_threads_destructor (notmuch_threads_t *threads)
|
|
{
|
|
g_ptr_array_free (threads->threads, TRUE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
notmuch_threads_t *
|
|
notmuch_query_search_threads (notmuch_query_t *query)
|
|
{
|
|
notmuch_threads_t *threads;
|
|
notmuch_thread_t *thread;
|
|
const char *thread_id;
|
|
notmuch_messages_t *messages;
|
|
notmuch_message_t *message;
|
|
GHashTable *seen;
|
|
|
|
threads = talloc (query, notmuch_threads_t);
|
|
if (threads == NULL)
|
|
return NULL;
|
|
|
|
threads->notmuch = query->notmuch;
|
|
threads->threads = g_ptr_array_new ();
|
|
threads->index = 0;
|
|
|
|
talloc_set_destructor (threads, _notmuch_threads_destructor);
|
|
|
|
seen = g_hash_table_new_full (g_str_hash, g_str_equal,
|
|
free, NULL);
|
|
|
|
for (messages = notmuch_query_search_messages (query, 0, -1);
|
|
notmuch_messages_has_more (messages);
|
|
notmuch_messages_advance (messages))
|
|
{
|
|
message = notmuch_messages_get (messages);
|
|
|
|
thread_id = notmuch_message_get_thread_id (message);
|
|
|
|
if (! g_hash_table_lookup_extended (seen,
|
|
thread_id, NULL,
|
|
(void **) &thread))
|
|
{
|
|
thread = _notmuch_thread_create (query, query->notmuch,
|
|
thread_id,
|
|
query->query_string);
|
|
g_ptr_array_add (threads->threads, thread);
|
|
|
|
g_hash_table_insert (seen, xstrdup (thread_id), thread);
|
|
}
|
|
|
|
notmuch_message_destroy (message);
|
|
}
|
|
|
|
g_hash_table_unref (seen);
|
|
|
|
return threads;
|
|
}
|
|
|
|
void
|
|
notmuch_query_destroy (notmuch_query_t *query)
|
|
{
|
|
talloc_free (query);
|
|
}
|
|
|
|
notmuch_bool_t
|
|
notmuch_threads_has_more (notmuch_threads_t *threads)
|
|
{
|
|
return (threads->index < threads->threads->len);
|
|
}
|
|
|
|
notmuch_thread_t *
|
|
notmuch_threads_get (notmuch_threads_t *threads)
|
|
{
|
|
if (! notmuch_threads_has_more (threads))
|
|
return NULL;
|
|
|
|
return (notmuch_thread_t *) g_ptr_array_index (threads->threads,
|
|
threads->index);
|
|
}
|
|
|
|
void
|
|
notmuch_threads_advance (notmuch_threads_t *threads)
|
|
{
|
|
threads->index++;
|
|
}
|
|
|
|
void
|
|
notmuch_threads_destroy (notmuch_threads_t *threads)
|
|
{
|
|
talloc_free (threads);
|
|
}
|
|
|
|
unsigned
|
|
notmuch_query_count_messages (notmuch_query_t *query)
|
|
{
|
|
notmuch_database_t *notmuch = query->notmuch;
|
|
const char *query_string = query->query_string;
|
|
Xapian::doccount count;
|
|
|
|
try {
|
|
Xapian::Enquire enquire (*notmuch->xapian_db);
|
|
Xapian::Query mail_query (talloc_asprintf (query, "%s%s",
|
|
_find_prefix ("type"),
|
|
"mail"));
|
|
Xapian::Query string_query, final_query;
|
|
Xapian::MSet mset;
|
|
unsigned int flags = (Xapian::QueryParser::FLAG_BOOLEAN |
|
|
Xapian::QueryParser::FLAG_PHRASE |
|
|
Xapian::QueryParser::FLAG_LOVEHATE |
|
|
Xapian::QueryParser::FLAG_BOOLEAN_ANY_CASE |
|
|
Xapian::QueryParser::FLAG_WILDCARD |
|
|
Xapian::QueryParser::FLAG_PURE_NOT);
|
|
|
|
if (strcmp (query_string, "") == 0) {
|
|
final_query = mail_query;
|
|
} else {
|
|
string_query = notmuch->query_parser->
|
|
parse_query (query_string, flags);
|
|
final_query = Xapian::Query (Xapian::Query::OP_AND,
|
|
mail_query, string_query);
|
|
}
|
|
|
|
enquire.set_weighting_scheme(Xapian::BoolWeight());
|
|
enquire.set_docid_order(Xapian::Enquire::ASCENDING);
|
|
|
|
#if DEBUG_QUERY
|
|
fprintf (stderr, "Final query is:\n%s\n", final_query.get_description().c_str());
|
|
#endif
|
|
|
|
enquire.set_query (final_query);
|
|
|
|
mset = enquire.get_mset (0, notmuch->xapian_db->get_doccount ());
|
|
|
|
count = mset.get_matches_estimated();
|
|
|
|
} catch (const Xapian::Error &error) {
|
|
fprintf (stderr, "A Xapian exception occurred: %s\n",
|
|
error.get_msg().c_str());
|
|
fprintf (stderr, "Query string was: %s\n", query->query_string);
|
|
}
|
|
|
|
return count;
|
|
}
|