* 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/ .
+ * along with this program. If not, see https://www.gnu.org/licenses/ .
*
* Author: Carl Worth <cworth@cworth.org>
*/
#include "notmuch-private.h"
#include "database-private.h"
+#include "xapian-extra.h"
#include <glib.h> /* GHashTable, GPtrArray */
-#include <xapian.h>
-
struct _notmuch_query {
notmuch_database_t *notmuch;
const char *query_string;
notmuch_sort_t sort;
+ notmuch_string_list_t *exclude_terms;
+ notmuch_exclude_t omit_excluded;
+ bool parsed;
+ notmuch_query_syntax_t syntax;
+ Xapian::Query xapian_query;
+ std::set<std::string> terms;
};
typedef struct _notmuch_mset_messages {
Xapian::MSetIterator iterator_end;
} notmuch_mset_messages_t;
+struct _notmuch_doc_id_set {
+ unsigned char *bitmap;
+ unsigned int bound;
+};
+
+#define DOCIDSET_WORD(bit) ((bit) / CHAR_BIT)
+#define DOCIDSET_BIT(bit) ((bit) % CHAR_BIT)
+
struct _notmuch_threads {
notmuch_query_t *query;
- GHashTable *threads;
- notmuch_messages_t *messages;
- /* This thread ID is our iterator state. */
- const char *thread_id;
+ /* The ordered list of doc ids matched by the query. */
+ GArray *doc_ids;
+ /* Our iterator's current position in doc_ids. */
+ unsigned int doc_id_pos;
+ /* The set of matched docid's that have not been assigned to a
+ * thread. Initially, this contains every docid in doc_ids. */
+ notmuch_doc_id_set_t match_set;
};
-notmuch_query_t *
-notmuch_query_create (notmuch_database_t *notmuch,
- const char *query_string)
+/* We need this in the message functions so forward declare. */
+static bool
+_notmuch_doc_id_set_init (void *ctx,
+ notmuch_doc_id_set_t *doc_ids,
+ GArray *arr);
+
+static bool
+_debug_query (void)
+{
+ char *env = getenv ("NOTMUCH_DEBUG_QUERY");
+
+ return (env && strcmp (env, "") != 0);
+}
+
+/* Explicit destructor call for placement new */
+static int
+_notmuch_query_destructor (notmuch_query_t *query)
+{
+ query->xapian_query.~Query();
+ query->terms.~set<std::string>();
+ return 0;
+}
+
+static notmuch_query_t *
+_notmuch_query_constructor (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
+ if (_debug_query ())
+ fprintf (stderr, "Query string is:\n%s\n", query_string);
- query = talloc (NULL, notmuch_query_t);
+ query = talloc (notmuch, notmuch_query_t);
if (unlikely (query == NULL))
return NULL;
+ new (&query->xapian_query) Xapian::Query ();
+ new (&query->terms) std::set<std::string> ();
+ query->parsed = false;
+
+ talloc_set_destructor (query, _notmuch_query_destructor);
+
query->notmuch = notmuch;
- query->query_string = talloc_strdup (query, query_string);
+ if (query_string)
+ query->query_string = talloc_strdup (query, query_string);
+ else
+ query->query_string = NULL;
query->sort = NOTMUCH_SORT_NEWEST_FIRST;
+ query->exclude_terms = _notmuch_string_list_create (query);
+
+ query->omit_excluded = NOTMUCH_EXCLUDE_TRUE;
+
+ return query;
+}
+
+notmuch_query_t *
+notmuch_query_create (notmuch_database_t *notmuch,
+ const char *query_string)
+{
+
+ notmuch_query_t *query;
+ notmuch_status_t status;
+
+ status = notmuch_query_create_with_syntax (notmuch, query_string,
+ NOTMUCH_QUERY_SYNTAX_XAPIAN,
+ &query);
+ if (status)
+ return NULL;
+
return query;
}
+notmuch_status_t
+notmuch_query_create_with_syntax (notmuch_database_t *notmuch,
+ const char *query_string,
+ notmuch_query_syntax_t syntax,
+ notmuch_query_t **output)
+{
+
+ notmuch_query_t *query;
+
+ if (! output)
+ return NOTMUCH_STATUS_NULL_POINTER;
+
+ query = _notmuch_query_constructor (notmuch, query_string);
+ if (! query)
+ return NOTMUCH_STATUS_OUT_OF_MEMORY;
+
+ if (syntax == NOTMUCH_QUERY_SYNTAX_SEXP && ! HAVE_SFSEXP) {
+ _notmuch_database_log (notmuch, "sexp query parser not available");
+ return NOTMUCH_STATUS_ILLEGAL_ARGUMENT;
+ }
+
+ query->syntax = syntax;
+
+ *output = query;
+
+ return NOTMUCH_STATUS_SUCCESS;
+}
+
+static void
+_notmuch_query_cache_terms (notmuch_query_t *query)
+{
+ /* Xapian doesn't support skip_to on terms from a query since
+ * they are unordered, so cache a copy of all terms in
+ * something searchable.
+ */
+
+ for (Xapian::TermIterator t = query->xapian_query.get_terms_begin ();
+ t != query->xapian_query.get_terms_end (); ++t)
+ query->terms.insert (*t);
+}
+
+notmuch_status_t
+_notmuch_query_string_to_xapian_query (notmuch_database_t *notmuch,
+ std::string query_string,
+ Xapian::Query &output,
+ std::string &msg)
+{
+ try {
+ if (query_string == "" || query_string == "*") {
+ output = xapian_query_match_all ();
+ } else {
+ output =
+ notmuch->query_parser->
+ parse_query (query_string, NOTMUCH_QUERY_PARSER_FLAGS);
+ }
+ } catch (const Xapian::Error &error) {
+ if (! notmuch->exception_reported) {
+ _notmuch_database_log (notmuch,
+ "A Xapian exception occurred parsing query: %s\n",
+ error.get_msg ().c_str ());
+ _notmuch_database_log_append (notmuch,
+ "Query string was: %s\n",
+ query_string.c_str ());
+ notmuch->exception_reported = true;
+ }
+
+ msg = error.get_msg ();
+ return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
+ }
+ return NOTMUCH_STATUS_SUCCESS;
+}
+
+static notmuch_status_t
+_notmuch_query_ensure_parsed_xapian (notmuch_query_t *query)
+{
+ notmuch_status_t status;
+ std::string msg; /* ignored */
+
+ status = _notmuch_query_string_to_xapian_query (query->notmuch, query->query_string,
+ query->xapian_query, msg);
+ if (status)
+ return status;
+
+ query->parsed = true;
+
+ _notmuch_query_cache_terms (query);
+
+ return NOTMUCH_STATUS_SUCCESS;
+}
+
+#if HAVE_SFSEXP
+static notmuch_status_t
+_notmuch_query_ensure_parsed_sexpr (notmuch_query_t *query)
+{
+ notmuch_status_t status;
+
+ if (query->parsed)
+ return NOTMUCH_STATUS_SUCCESS;
+
+ status = _notmuch_sexp_string_to_xapian_query (query->notmuch, query->query_string,
+ query->xapian_query);
+ if (status)
+ return status;
+
+ _notmuch_query_cache_terms (query);
+ return NOTMUCH_STATUS_SUCCESS;
+}
+#endif
+
+static notmuch_status_t
+_notmuch_query_ensure_parsed (notmuch_query_t *query)
+{
+ if (query->parsed)
+ return NOTMUCH_STATUS_SUCCESS;
+
+#if HAVE_SFSEXP
+ if (query->syntax == NOTMUCH_QUERY_SYNTAX_SEXP)
+ return _notmuch_query_ensure_parsed_sexpr (query);
+#endif
+
+ return _notmuch_query_ensure_parsed_xapian (query);
+}
+
+const char *
+notmuch_query_get_query_string (const notmuch_query_t *query)
+{
+ return query->query_string;
+}
+
+void
+notmuch_query_set_omit_excluded (notmuch_query_t *query,
+ notmuch_exclude_t omit_excluded)
+{
+ query->omit_excluded = omit_excluded;
+}
+
void
notmuch_query_set_sort (notmuch_query_t *query, notmuch_sort_t sort)
{
query->sort = sort;
}
+notmuch_sort_t
+notmuch_query_get_sort (const notmuch_query_t *query)
+{
+ return query->sort;
+}
+
+notmuch_status_t
+notmuch_query_add_tag_exclude (notmuch_query_t *query, const char *tag)
+{
+ notmuch_status_t status;
+ char *term;
+
+ status = _notmuch_query_ensure_parsed (query);
+ if (status)
+ return status;
+
+ term = talloc_asprintf (query, "%s%s", _find_prefix ("tag"), tag);
+ if (query->terms.count (term) != 0)
+ return NOTMUCH_STATUS_IGNORED;
+
+ _notmuch_string_list_append (query->exclude_terms, term);
+ return NOTMUCH_STATUS_SUCCESS;
+}
+
/* We end up having to call the destructors explicitly because we had
* to use "placement new" in order to initialize C++ objects within a
* block that we allocated with talloc. So C++ is making talloc
return 0;
}
-notmuch_messages_t *
-notmuch_query_search_messages (notmuch_query_t *query)
+/* Return a query that matches messages with the excluded tags
+ * registered with query. The caller of this function has to combine the returned
+ * query appropriately.*/
+static Xapian::Query
+_notmuch_exclude_tags (notmuch_query_t *query)
+{
+ Xapian::Query exclude_query = Xapian::Query::MatchNothing;
+
+ for (notmuch_string_node_t *term = query->exclude_terms->head; term;
+ term = term->next) {
+ exclude_query = Xapian::Query (Xapian::Query::OP_OR,
+ exclude_query, Xapian::Query (term->string));
+ }
+ return exclude_query;
+}
+
+
+notmuch_status_t
+notmuch_query_search_messages_st (notmuch_query_t *query,
+ notmuch_messages_t **out)
+{
+ return notmuch_query_search_messages (query, out);
+}
+
+notmuch_status_t
+notmuch_query_search_messages (notmuch_query_t *query,
+ notmuch_messages_t **out)
+{
+ return _notmuch_query_search_documents (query, "mail", out);
+}
+
+notmuch_status_t
+_notmuch_query_search_documents (notmuch_query_t *query,
+ const char *type,
+ notmuch_messages_t **out)
{
notmuch_database_t *notmuch = query->notmuch;
- const char *query_string = query->query_string;
notmuch_mset_messages_t *messages;
+ notmuch_status_t status;
+
+ status = _notmuch_query_ensure_parsed (query);
+ if (status)
+ return status;
messages = talloc (query, notmuch_mset_messages_t);
if (unlikely (messages == NULL))
- return NULL;
+ return NOTMUCH_STATUS_OUT_OF_MEMORY;
try {
- messages->base.is_of_list_type = FALSE;
+ messages->base.is_of_list_type = false;
messages->base.iterator = NULL;
messages->notmuch = notmuch;
new (&messages->iterator) Xapian::MSetIterator ();
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;
+ type));
+ Xapian::Query final_query, exclude_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 ||
- 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);
+ Xapian::MSetIterator iterator;
+
+ final_query = Xapian::Query (Xapian::Query::OP_AND,
+ mail_query, query->xapian_query);
+
+ messages->base.excluded_doc_ids = NULL;
+
+ if ((query->omit_excluded != NOTMUCH_EXCLUDE_FALSE) && (query->exclude_terms)) {
+ exclude_query = _notmuch_exclude_tags (query);
+
+ if (query->omit_excluded == NOTMUCH_EXCLUDE_TRUE ||
+ query->omit_excluded == NOTMUCH_EXCLUDE_ALL) {
+ final_query = Xapian::Query (Xapian::Query::OP_AND_NOT,
+ final_query, exclude_query);
+ } else { /* NOTMUCH_EXCLUDE_FLAG */
+ exclude_query = Xapian::Query (Xapian::Query::OP_AND,
+ exclude_query, final_query);
+
+ enquire.set_weighting_scheme (Xapian::BoolWeight ());
+ enquire.set_query (exclude_query);
+
+ mset = enquire.get_mset (0, notmuch->xapian_db->get_doccount ());
+
+ GArray *excluded_doc_ids = g_array_new (false, false, sizeof (unsigned int));
+
+ for (iterator = mset.begin (); iterator != mset.end (); iterator++) {
+ unsigned int doc_id = *iterator;
+ g_array_append_val (excluded_doc_ids, doc_id);
+ }
+ messages->base.excluded_doc_ids = talloc (messages, _notmuch_doc_id_set);
+ _notmuch_doc_id_set_init (query, messages->base.excluded_doc_ids,
+ excluded_doc_ids);
+ g_array_unref (excluded_doc_ids);
+ }
}
- enquire.set_weighting_scheme (Xapian::BoolWeight());
+
+ enquire.set_weighting_scheme (Xapian::BoolWeight ());
switch (query->sort) {
case NOTMUCH_SORT_OLDEST_FIRST:
- enquire.set_sort_by_value (NOTMUCH_VALUE_TIMESTAMP, FALSE);
+ enquire.set_sort_by_value (NOTMUCH_VALUE_TIMESTAMP, false);
break;
case NOTMUCH_SORT_NEWEST_FIRST:
- enquire.set_sort_by_value (NOTMUCH_VALUE_TIMESTAMP, TRUE);
+ 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);
+ enquire.set_sort_by_value (NOTMUCH_VALUE_MESSAGE_ID, false);
break;
- case NOTMUCH_SORT_UNSORTED:
+ case NOTMUCH_SORT_UNSORTED:
break;
}
-#if DEBUG_QUERY
- fprintf (stderr, "Final query is:\n%s\n", final_query.get_description().c_str());
-#endif
+ if (_debug_query ()) {
+ fprintf (stderr, "Exclude query is:\n%s\n",
+ exclude_query.get_description ().c_str ());
+ fprintf (stderr, "Final query is:\n%s\n",
+ final_query.get_description ().c_str ());
+ }
enquire.set_query (final_query);
messages->iterator = mset.begin ();
messages->iterator_end = mset.end ();
- return &messages->base;
+ *out = &messages->base;
+ return NOTMUCH_STATUS_SUCCESS;
} 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;
+ _notmuch_database_log (notmuch,
+ "A Xapian exception occurred performing query: %s\n",
+ error.get_msg ().c_str ());
+ _notmuch_database_log_append (notmuch,
+ "Query string was: %s\n",
+ query->query_string);
+
+ notmuch->exception_reported = true;
talloc_free (messages);
- return NULL;
+ return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
}
-notmuch_bool_t
+bool
_notmuch_mset_messages_valid (notmuch_messages_t *messages)
{
notmuch_mset_messages_t *mset_messages;
return (mset_messages->iterator != mset_messages->iterator_end);
}
+static Xapian::docid
+_notmuch_mset_messages_get_doc_id (notmuch_messages_t *messages)
+{
+ notmuch_mset_messages_t *mset_messages;
+
+ mset_messages = (notmuch_mset_messages_t *) messages;
+
+ if (! _notmuch_mset_messages_valid (&mset_messages->base))
+ return 0;
+
+ return *mset_messages->iterator;
+}
+
notmuch_message_t *
_notmuch_mset_messages_get (notmuch_messages_t *messages)
{
&status);
if (message == NULL &&
- status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND)
- {
+ status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND) {
INTERNAL_ERROR ("a messages iterator contains a non-existent document ID.\n");
}
+ if (messages->excluded_doc_ids &&
+ _notmuch_doc_id_set_contains (messages->excluded_doc_ids, doc_id))
+ notmuch_message_set_flag (message, NOTMUCH_MESSAGE_FLAG_EXCLUDED, true);
+
return message;
}
mset_messages->iterator++;
}
+static bool
+_notmuch_doc_id_set_init (void *ctx,
+ notmuch_doc_id_set_t *doc_ids,
+ GArray *arr)
+{
+ unsigned int max = 0;
+ unsigned char *bitmap;
+
+ for (unsigned int i = 0; i < arr->len; i++)
+ max = MAX (max, g_array_index (arr, unsigned int, i));
+ bitmap = talloc_zero_array (ctx, unsigned char, DOCIDSET_WORD (max) + 1);
+
+ if (bitmap == NULL)
+ return false;
+
+ doc_ids->bitmap = bitmap;
+ doc_ids->bound = max + 1;
+
+ for (unsigned int i = 0; i < arr->len; i++) {
+ unsigned int doc_id = g_array_index (arr, unsigned int, i);
+ bitmap[DOCIDSET_WORD (doc_id)] |= 1 << DOCIDSET_BIT (doc_id);
+ }
+
+ return true;
+}
+
+bool
+_notmuch_doc_id_set_contains (notmuch_doc_id_set_t *doc_ids,
+ unsigned int doc_id)
+{
+ if (doc_id >= doc_ids->bound)
+ return false;
+ return doc_ids->bitmap[DOCIDSET_WORD (doc_id)] & (1 << DOCIDSET_BIT (doc_id));
+}
+
+void
+_notmuch_doc_id_set_remove (notmuch_doc_id_set_t *doc_ids,
+ unsigned int doc_id)
+{
+ if (doc_id < doc_ids->bound)
+ doc_ids->bitmap[DOCIDSET_WORD (doc_id)] &= ~(1 << DOCIDSET_BIT (doc_id));
+}
+
/* 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
static int
_notmuch_threads_destructor (notmuch_threads_t *threads)
{
- g_hash_table_unref (threads->threads);
+ if (threads->doc_ids)
+ g_array_unref (threads->doc_ids);
return 0;
}
-notmuch_threads_t *
-notmuch_query_search_threads (notmuch_query_t *query)
+notmuch_status_t
+notmuch_query_search_threads_st (notmuch_query_t *query, notmuch_threads_t **out)
+{
+ return notmuch_query_search_threads (query, out);
+}
+
+notmuch_status_t
+notmuch_query_search_threads (notmuch_query_t *query,
+ notmuch_threads_t **out)
{
notmuch_threads_t *threads;
+ notmuch_messages_t *messages;
+ notmuch_status_t status;
threads = talloc (query, notmuch_threads_t);
if (threads == NULL)
- return NULL;
+ return NOTMUCH_STATUS_OUT_OF_MEMORY;
+ threads->doc_ids = NULL;
+ talloc_set_destructor (threads, _notmuch_threads_destructor);
threads->query = query;
- threads->threads = g_hash_table_new_full (g_str_hash, g_str_equal,
- free, NULL);
- threads->messages = notmuch_query_search_messages (query);
- if (threads->messages == NULL) {
- talloc_free (threads);
- return NULL;
+ status = notmuch_query_search_messages (query, &messages);
+ if (status) {
+ talloc_free (threads);
+ return status;
}
- threads->thread_id = NULL;
+ threads->doc_ids = g_array_new (false, false, sizeof (unsigned int));
+ while (notmuch_messages_valid (messages)) {
+ unsigned int doc_id = _notmuch_mset_messages_get_doc_id (messages);
+ g_array_append_val (threads->doc_ids, doc_id);
+ notmuch_messages_move_to_next (messages);
+ }
+ threads->doc_id_pos = 0;
- talloc_set_destructor (threads, _notmuch_threads_destructor);
+ talloc_free (messages);
+
+ if (! _notmuch_doc_id_set_init (threads, &threads->match_set,
+ threads->doc_ids)) {
+ talloc_free (threads);
+ return NOTMUCH_STATUS_OUT_OF_MEMORY;
+ }
- return threads;
+ *out = threads;
+ return NOTMUCH_STATUS_SUCCESS;
}
void
notmuch_bool_t
notmuch_threads_valid (notmuch_threads_t *threads)
{
- notmuch_message_t *message;
-
- if (threads->thread_id)
- return TRUE;
-
- while (notmuch_messages_valid (threads->messages))
- {
- message = notmuch_messages_get (threads->messages);
+ unsigned int doc_id;
- threads->thread_id = notmuch_message_get_thread_id (message);
+ if (! threads)
+ return false;
- if (! g_hash_table_lookup_extended (threads->threads,
- threads->thread_id,
- NULL, NULL))
- {
- g_hash_table_insert (threads->threads,
- xstrdup (threads->thread_id), NULL);
- notmuch_messages_move_to_next (threads->messages);
- return TRUE;
- }
+ while (threads->doc_id_pos < threads->doc_ids->len) {
+ doc_id = g_array_index (threads->doc_ids, unsigned int,
+ threads->doc_id_pos);
+ if (_notmuch_doc_id_set_contains (&threads->match_set, doc_id))
+ break;
- notmuch_messages_move_to_next (threads->messages);
+ threads->doc_id_pos++;
}
- threads->thread_id = NULL;
- return FALSE;
+ return threads->doc_id_pos < threads->doc_ids->len;
}
notmuch_thread_t *
notmuch_threads_get (notmuch_threads_t *threads)
{
+ unsigned int doc_id;
+
if (! notmuch_threads_valid (threads))
return NULL;
+ doc_id = g_array_index (threads->doc_ids, unsigned int,
+ threads->doc_id_pos);
return _notmuch_thread_create (threads->query,
threads->query->notmuch,
- threads->thread_id,
- threads->query->query_string,
+ doc_id,
+ &threads->match_set,
+ threads->query->exclude_terms,
+ threads->query->omit_excluded,
threads->query->sort);
}
void
notmuch_threads_move_to_next (notmuch_threads_t *threads)
{
- threads->thread_id = NULL;
+ threads->doc_id_pos++;
}
void
talloc_free (threads);
}
-unsigned
-notmuch_query_count_messages (notmuch_query_t *query)
+notmuch_status_t
+notmuch_query_count_messages_st (notmuch_query_t *query, unsigned *count_out)
+{
+ return notmuch_query_count_messages (query, count_out);
+}
+
+notmuch_status_t
+notmuch_query_count_messages (notmuch_query_t *query, unsigned *count_out)
+{
+ return _notmuch_query_count_documents (query, "mail", count_out);
+}
+
+notmuch_status_t
+_notmuch_query_count_documents (notmuch_query_t *query, const char *type, unsigned *count_out)
{
notmuch_database_t *notmuch = query->notmuch;
- const char *query_string = query->query_string;
Xapian::doccount count = 0;
+ notmuch_status_t status;
+
+ status = _notmuch_query_ensure_parsed (query);
+ if (status)
+ return status;
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;
+ type));
+ Xapian::Query final_query, exclude_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 ||
- 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);
+ final_query = Xapian::Query (Xapian::Query::OP_AND,
+ mail_query, query->xapian_query);
-#if DEBUG_QUERY
- fprintf (stderr, "Final query is:\n%s\n", final_query.get_description().c_str());
-#endif
+ exclude_query = _notmuch_exclude_tags (query);
+
+ final_query = Xapian::Query (Xapian::Query::OP_AND_NOT,
+ final_query, exclude_query);
+
+ enquire.set_weighting_scheme (Xapian::BoolWeight ());
+ enquire.set_docid_order (Xapian::Enquire::ASCENDING);
+
+ if (_debug_query ()) {
+ fprintf (stderr, "Exclude query is:\n%s\n",
+ exclude_query.get_description ().c_str ());
+ fprintf (stderr, "Final query is:\n%s\n",
+ final_query.get_description ().c_str ());
+ }
enquire.set_query (final_query);
+ /*
+ * Set the checkatleast parameter to the number of documents
+ * in the database to make get_matches_estimated() exact.
+ * Set the max parameter to 1 to avoid fetching documents we will discard.
+ */
+ mset = enquire.get_mset (0, 1,
+ notmuch->xapian_db->get_doccount ());
+
+ count = mset.get_matches_estimated ();
+
+ } catch (const Xapian::Error &error) {
+ _notmuch_database_log (notmuch,
+ "A Xapian exception occurred performing query: %s\n",
+ error.get_msg ().c_str ());
+ _notmuch_database_log_append (notmuch,
+ "Query string was: %s\n",
+ query->query_string);
+ return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
+ }
+
+ *count_out = count;
+ return NOTMUCH_STATUS_SUCCESS;
+}
+
+notmuch_status_t
+notmuch_query_count_threads_st (notmuch_query_t *query, unsigned *count)
+{
+ return notmuch_query_count_threads (query, count);
+}
+
+notmuch_status_t
+notmuch_query_count_threads (notmuch_query_t *query, unsigned *count)
+{
+ notmuch_messages_t *messages;
+ GHashTable *hash;
+ notmuch_sort_t sort;
+ notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
+
+ sort = query->sort;
+ query->sort = NOTMUCH_SORT_UNSORTED;
+ ret = notmuch_query_search_messages (query, &messages);
+ if (ret)
+ return ret;
+ query->sort = sort;
+ if (messages == NULL)
+ return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
+
+ hash = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, NULL);
+ if (hash == NULL) {
+ talloc_free (messages);
+ return NOTMUCH_STATUS_OUT_OF_MEMORY;
+ }
+
+ while (notmuch_messages_valid (messages)) {
+ notmuch_message_t *message = notmuch_messages_get (messages);
+ const char *thread_id = notmuch_message_get_thread_id (message);
+ char *thread_id_copy = talloc_strdup (messages, thread_id);
+ if (unlikely (thread_id_copy == NULL)) {
+ notmuch_message_destroy (message);
+ ret = NOTMUCH_STATUS_OUT_OF_MEMORY;
+ goto DONE;
+ }
+ g_hash_table_insert (hash, thread_id_copy, NULL);
+ notmuch_message_destroy (message);
+ notmuch_messages_move_to_next (messages);
+ }
+
+ *count = g_hash_table_size (hash);
+
+ DONE:
+ g_hash_table_unref (hash);
+ talloc_free (messages);
+
+ return ret;
+}
+
+notmuch_database_t *
+notmuch_query_get_database (const notmuch_query_t *query)
+{
+ return query->notmuch;
+}
+
+notmuch_status_t
+_notmuch_query_expand (notmuch_database_t *notmuch, const char *field, Xapian::Query subquery,
+ Xapian::Query &output, std::string &msg)
+{
+ std::set<std::string> terms;
+ const std::string term_prefix = _find_prefix (field);
+
+ if (_debug_query ()) {
+ fprintf (stderr, "Expanding subquery:\n%s\n",
+ subquery.get_description ().c_str ());
+ }
+
+ try {
+ Xapian::Enquire enquire (*notmuch->xapian_db);
+ Xapian::MSet mset;
+
+ enquire.set_weighting_scheme (Xapian::BoolWeight ());
+ enquire.set_query (subquery);
+
mset = enquire.get_mset (0, notmuch->xapian_db->get_doccount ());
- count = mset.get_matches_estimated();
+ for (Xapian::MSetIterator iterator = mset.begin (); iterator != mset.end (); iterator++) {
+ Xapian::docid doc_id = *iterator;
+ Xapian::Document doc = notmuch->xapian_db->get_document (doc_id);
+ Xapian::TermIterator i = doc.termlist_begin ();
+
+ for (i.skip_to (term_prefix);
+ i != doc.termlist_end () && ((*i).rfind (term_prefix, 0) == 0); i++) {
+ terms.insert (*i);
+ }
+ }
+ output = Xapian::Query (Xapian::Query::OP_OR, terms.begin (), terms.end ());
+ if (_debug_query ()) {
+ fprintf (stderr, "Expanded query:\n%s\n",
+ subquery.get_description ().c_str ());
+ }
} 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);
+ _notmuch_database_log (notmuch,
+ "A Xapian exception occurred expanding query: %s\n",
+ error.get_msg ().c_str ());
+ msg = error.get_msg ();
+ return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
- return count;
+ return NOTMUCH_STATUS_SUCCESS;
}