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notmuch-index-message: Fix handling of thread_id terms.

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We now emit one term per thread_id, rather than the comma-separated
super-term we were doing previously.
This commit is contained in:
Carl Worth 2009-10-14 14:00:10 -07:00
parent 535b14dcba
commit 736bad40ac
1 changed files with 41 additions and 22 deletions
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63
notmuch-index-message.cc
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@ -277,18 +277,25 @@ insert_thread_id (GHashTable *thread_ids, Xapian::Document doc)
g_hash_table_insert (thread_ids, strdup (value), NULL);
}
static char *
find_thread_id (Xapian::Database db,
GPtrArray *parents,
const char *message_id)
/* Return one or more thread_ids, (as a GPtrArray of strings), for the
* given message based on looking into the database for any messages
* referenced in parents, and also for any messages in the database
* referencing message_id.
*
* Caller should free all strings in the array and the array itself,
* (g_ptr_array_free) when done. */
static GPtrArray *
find_thread_ids (Xapian::Database db,
GPtrArray *parents,
const char *message_id)
{
Xapian::PostingIterator child, children_end;
Xapian::Document doc;
GHashTable *thread_ids;
GList *keys, *l;
GString *result = NULL;
unsigned int i;
const char *parent_message_id;
GPtrArray *result;
thread_ids = g_hash_table_new (g_str_hash, g_str_equal);
@ -304,21 +311,15 @@ find_thread_id (Xapian::Database db,
insert_thread_id (thread_ids, doc);
}
result = g_ptr_array_new ();
keys = g_hash_table_get_keys (thread_ids);
for (l = keys; l; l = l->next) {
char *id = (char *) l->data;
if (result == NULL) {
result = g_string_new (id);
} else {
g_string_append_printf (result, ",%s", id);
}
free (id);
g_ptr_array_add (result, id);
}
if (result)
return g_string_free (result, FALSE);
else
return NULL;
return result;
}
/* Add a term for each message-id in the References header of the
@ -440,12 +441,12 @@ index_file (Xapian::WritableDatabase db,
GMimeParser *parser;
GMimeMessage *message;
InternetAddressList *addresses;
GPtrArray *parents;
GPtrArray *parents, *thread_ids;
FILE *file;
const char *subject, *refs, *in_reply_to, *from;
const char *message_id, *thread_id;
const char *message_id;
time_t time;
struct tm gm_time_tm;
@ -501,7 +502,7 @@ index_file (Xapian::WritableDatabase db,
message_id = g_mime_message_get_message_id (message);
thread_id = find_thread_id (db, parents, message_id);
thread_ids = find_thread_ids (db, parents, message_id);
for (i = 0; i < parents->len; i++)
g_free (g_ptr_array_index (parents, i));
@ -536,10 +537,28 @@ index_file (Xapian::WritableDatabase db,
add_term (doc, "msgid", message_id);
doc.add_value (NOTMUCH_VALUE_MESSAGE_ID, message_id);
if (thread_id) {
add_term (doc, "thread", thread_id);
doc.add_value (NOTMUCH_VALUE_THREAD, thread_id);
free ((void *) thread_id);
if (thread_ids->len) {
unsigned int i;
GString *thread_id;
char *id;
for (i = 0; i < thread_ids->len; i++) {
id = (char *) thread_ids->pdata[i];
add_term (doc, "thread", id);
if (i == 0)
thread_id = g_string_new (id);
else
g_string_append_printf (thread_id, ",%s", id);
free (id);
}
g_ptr_array_free (thread_ids, TRUE);
doc.add_value (NOTMUCH_VALUE_THREAD, thread_id->str);
g_string_free (thread_id, TRUE);
} else {
/* If not referenced thread, use the message ID */
add_term (doc, "thread", message_id);