lib: add support for path: prefix searches

[notmuch] / lib / query.cc

diff --git a/lib/query.cc b/lib/query.cc
index ab18fbc6124d1c573741a9ebc7ac2dbb77b65086..60ff8bd9a39e1707e12a4e96cff99890b00d669b 100644 (file)
--- a/lib/query.cc
+++ b/lib/query.cc
@@ -28,7 +28,7 @@ struct _notmuch_query {
     const char *query_string;
     notmuch_sort_t sort;
     notmuch_string_list_t *exclude_terms;
-    notmuch_bool_t omit_excluded_messages;
+    notmuch_exclude_t omit_excluded;
 };
 
 typedef struct _notmuch_mset_messages {
@@ -39,12 +39,12 @@ typedef struct _notmuch_mset_messages {
 } notmuch_mset_messages_t;
 
 struct _notmuch_doc_id_set {
-    unsigned int *bitmap;
+    unsigned char *bitmap;
     unsigned int bound;
 };
 
-#define DOCIDSET_WORD(bit) ((bit) / sizeof (unsigned int))
-#define DOCIDSET_BIT(bit) ((bit) % sizeof (unsigned int))
+#define DOCIDSET_WORD(bit) ((bit) / CHAR_BIT)
+#define DOCIDSET_BIT(bit) ((bit) % CHAR_BIT)
 
 struct visible _notmuch_threads {
     notmuch_query_t *query;
@@ -64,17 +64,23 @@ _notmuch_doc_id_set_init (void *ctx,
                          notmuch_doc_id_set_t *doc_ids,
                          GArray *arr);
 
+static notmuch_bool_t
+_debug_query (void)
+{
+    char *env = getenv ("NOTMUCH_DEBUG_QUERY");
+    return (env && strcmp (env, "") != 0);
+}
+
 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
+    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;
 
@@ -86,7 +92,7 @@ notmuch_query_create (notmuch_database_t *notmuch,
 
     query->exclude_terms = _notmuch_string_list_create (query);
 
-    query->omit_excluded_messages = FALSE;
+    query->omit_excluded = NOTMUCH_EXCLUDE_TRUE;
 
     return query;
 }
@@ -98,9 +104,10 @@ notmuch_query_get_query_string (notmuch_query_t *query)
 }
 
 void
-notmuch_query_set_omit_excluded_messages (notmuch_query_t *query, notmuch_bool_t omit)
+notmuch_query_set_omit_excluded (notmuch_query_t *query,
+                                notmuch_exclude_t omit_excluded)
 {
-    query->omit_excluded_messages = omit;
+    query->omit_excluded = omit_excluded;
 }
 
 void
@@ -211,15 +218,18 @@ notmuch_query_search_messages (notmuch_query_t *query)
        }
        messages->base.excluded_doc_ids = NULL;
 
-       if (query->exclude_terms) {
+       if ((query->omit_excluded != NOTMUCH_EXCLUDE_FALSE) && (query->exclude_terms)) {
            exclude_query = _notmuch_exclude_tags (query, final_query);
-           exclude_query = Xapian::Query (Xapian::Query::OP_AND,
-                                          exclude_query, final_query);
 
-           if (query->omit_excluded_messages)
+           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 {
+           } 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);
 
@@ -255,9 +265,12 @@ notmuch_query_search_messages (notmuch_query_t *query)
            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);
 
@@ -349,11 +362,11 @@ _notmuch_doc_id_set_init (void *ctx,
                          GArray *arr)
 {
     unsigned int max = 0;
-    unsigned int *bitmap;
+    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 int, 1 + max / sizeof (*bitmap));
+    bitmap = talloc_zero_array (ctx, unsigned char, DOCIDSET_WORD(max) + 1);
 
     if (bitmap == NULL)
        return FALSE;
@@ -449,6 +462,9 @@ notmuch_threads_valid (notmuch_threads_t *threads)
 {
     unsigned int doc_id;
 
+    if (! threads)
+       return FALSE;
+
     while (threads->doc_id_pos < threads->doc_ids->len) {
        doc_id = g_array_index (threads->doc_ids, unsigned int,
                                threads->doc_id_pos);
@@ -476,6 +492,7 @@ notmuch_threads_get (notmuch_threads_t *threads)
                                   doc_id,
                                   &threads->match_set,
                                   threads->query->exclude_terms,
+                                  threads->query->omit_excluded,
                                   threads->query->sort);
 }
 
@@ -531,9 +548,12 @@ notmuch_query_count_messages (notmuch_query_t *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
+       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);