Add sha1.c and libsha1.h for doing SHA-1-based message-ID generation.

[notmuch] / database.cc

diff --git a/database.cc b/database.cc
index 00b03731206289b171736dd8f9c4044a67f8f0a8..5049b47e9ef593d44b586bc67d37064f79dc0a84 100644 (file)
--- a/database.cc
+++ b/database.cc
@@ -28,6 +28,26 @@
 
 using namespace std;
 
+const char *
+notmuch_status_to_string (notmuch_status_t status)
+{
+    switch (status) {
+    case NOTMUCH_STATUS_SUCCESS:
+       return "No error occurred";
+    case NOTMUCH_STATUS_XAPIAN_EXCEPTION:
+       return "A Xapian exception occurred";
+    case NOTMUCH_STATUS_FILE_NOT_EMAIL:
+       return "File is not an email";
+    case NOTMUCH_STATUS_NULL_POINTER:
+       return "Erroneous NULL pointer";
+    case NOTMUCH_STATUS_TAG_TOO_LONG:
+       return "Tag value is too long";
+    default:
+    case NOTMUCH_STATUS_LAST_STATUS:
+       return "Unknown error status value";
+    }
+}
+
 /* "128 bits of thread-id ought to be enough for anybody" */
 #define NOTMUCH_THREAD_ID_BITS  128
 #define NOTMUCH_THREAD_ID_DIGITS (NOTMUCH_THREAD_ID_BITS / 4)
@@ -64,6 +84,8 @@ thread_id_generate (thread_id_t *thread_id)
     }
 }
 
+/* XXX: We should drop this function and convert all callers to call
+ * _notmuch_message_add_term instead. */
 static void
 add_term (Xapian::Document doc,
          const char *prefix_name,
@@ -111,40 +133,19 @@ find_message_by_docid (Xapian::Database *db, Xapian::docid docid)
     return db->get_document (docid);
 }
 
-Xapian::Document
-find_message_by_message_id (Xapian::Database *db, const char *message_id)
+notmuch_message_t *
+notmuch_database_find_message (notmuch_database_t *notmuch,
+                              const char *message_id)
 {
     Xapian::PostingIterator i, end;
 
-    find_messages_by_term (db, "msgid", message_id, &i, &end);
+    find_messages_by_term (notmuch->xapian_db,
+                          "msgid", message_id, &i, &end);
 
-    if (i != end)
-       return find_message_by_docid (db, *i);
-    else
-       return Xapian::Document ();
-}
+    if (i == end)
+       return NULL;
 
-static void
-insert_thread_id (GHashTable *thread_ids, Xapian::Document doc)
-{
-    string value_string;
-    const char *value, *id, *comma;
-
-    value_string = doc.get_value (NOTMUCH_VALUE_THREAD);
-    value = value_string.c_str();
-    if (strlen (value)) {
-       id = value;
-       while (*id) {
-           comma = strchr (id, ',');
-           if (comma == NULL)
-               comma = id + strlen (id);
-           g_hash_table_insert (thread_ids,
-                                strndup (id, comma - id), NULL);
-           id = comma;
-           if (*id)
-               id++;
-       }
-    }
+    return _notmuch_message_create (notmuch, notmuch, *i);
 }
 
 /* Return one or more thread_ids, (as a GPtrArray of strings), for the
@@ -155,10 +156,11 @@ insert_thread_id (GHashTable *thread_ids, Xapian::Document doc)
  * 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,
+find_thread_ids (notmuch_database_t *notmuch,
                 GPtrArray *parents,
                 const char *message_id)
 {
+    Xapian::WritableDatabase *db = notmuch->xapian_db;
     Xapian::PostingIterator child, children_end;
     Xapian::Document doc;
     GHashTable *thread_ids;
@@ -172,14 +174,38 @@ find_thread_ids (Xapian::Database *db,
 
     find_messages_by_term (db, "ref", message_id, &child, &children_end);
     for ( ; child != children_end; child++) {
+       const char *thread_id;
        doc = find_message_by_docid (db, *child);
-       insert_thread_id (thread_ids, doc);
+
+       thread_id = doc.get_value (NOTMUCH_VALUE_THREAD).c_str ();
+       if (strlen (thread_id) == 0) {
+           fprintf (stderr, "Database error: Message with doc_id %u has empty thread-id value (value index %d)\n",
+                    *child, NOTMUCH_VALUE_THREAD);
+       } else {
+           g_hash_table_insert (thread_ids, strdup (thread_id), NULL);
+       }
     }
 
     for (i = 0; i < parents->len; i++) {
+       notmuch_message_t *parent;
+       notmuch_thread_ids_t *ids;
+
        parent_message_id = (char *) g_ptr_array_index (parents, i);
-       doc = find_message_by_message_id (db, parent_message_id);
-       insert_thread_id (thread_ids, doc);
+       parent = notmuch_database_find_message (notmuch, parent_message_id);
+       if (parent == NULL)
+           continue;
+
+       for (ids = notmuch_message_get_thread_ids (parent);
+            notmuch_thread_ids_has_more (ids);
+            notmuch_thread_ids_advance (ids))
+       {
+           const char *id;
+
+           id = notmuch_thread_ids_get (ids);
+           g_hash_table_insert (thread_ids, strdup (id), NULL);
+       }
+
+       notmuch_message_destroy (parent);
     }
 
     result = g_ptr_array_new ();
@@ -497,7 +523,7 @@ notmuch_database_add_message (notmuch_database_t *notmuch,
            message_id = NULL;
        }
 
-       thread_ids = find_thread_ids (db, parents, message_id);
+       thread_ids = find_thread_ids (notmuch, parents, message_id);
 
        for (i = 0; i < parents->len; i++)
            g_free (g_ptr_array_index (parents, i));