* NOTMUCH_STATUS_UNBALANCED_FREEZE_THAW: The notmuch_message_thaw
* function has been called more times than notmuch_message_freeze.
*
+ * NOTMUCH_STATUS_UNBALANCED_ATOMIC: notmuch_database_end_atomic has
+ * been called more times than notmuch_database_begin_atomic.
+ *
* And finally:
*
* NOTMUCH_STATUS_LAST_STATUS: Not an actual status value. Just a way
NOTMUCH_STATUS_NULL_POINTER,
NOTMUCH_STATUS_TAG_TOO_LONG,
NOTMUCH_STATUS_UNBALANCED_FREEZE_THAW,
+ NOTMUCH_STATUS_UNBALANCED_ATOMIC,
NOTMUCH_STATUS_LAST_STATUS
} notmuch_status_t;
/* Get a string representation of a notmuch_status_t value.
*
- * The result is readonly.
+ * The result is read-only.
*/
const char *
notmuch_status_to_string (notmuch_status_t status);
* (not necessarily by this process), by calling
* notmuch_database_create with 'path'. By default the database should be
* opened for reading only. In order to write to the database you need to
- * pass the NOTMUCH_DATABASE_MODE_WRITABLE mode.
+ * pass the NOTMUCH_DATABASE_MODE_READ_WRITE mode.
*
* An existing notmuch database can be identified by the presence of a
* directory named ".notmuch" below 'path'.
double progress),
void *closure);
+/* Begin an atomic database operation.
+ *
+ * Any modifications performed between a successful begin and a
+ * notmuch_database_end_atomic will be applied to the database
+ * atomically. Note that, unlike a typical database transaction, this
+ * only ensures atomicity, not durability; neither begin nor end
+ * necessarily flush modifications to disk.
+ *
+ * Atomic sections may be nested. begin_atomic and end_atomic must
+ * always be called in pairs.
+ *
+ * Return value:
+ *
+ * NOTMUCH_STATUS_SUCCESS: Successfully entered atomic section.
+ *
+ * NOTMUCH_STATUS_XAPIAN_EXCEPTION: A Xapian exception occurred;
+ * atomic section not entered.
+ */
+notmuch_status_t
+notmuch_database_begin_atomic (notmuch_database_t *notmuch);
+
+/* Indicate the end of an atomic database operation.
+ *
+ * Return value:
+ *
+ * NOTMUCH_STATUS_SUCCESS: Successfully completed atomic section.
+ *
+ * NOTMUCH_STATUS_XAPIAN_EXCEPTION: A Xapian exception occurred;
+ * atomic section not ended.
+ *
+ * NOTMUCH_STATUS_UNBALANCED_ATOMIC: The database is not currently in
+ * an atomic section.
+ */
+notmuch_status_t
+notmuch_database_end_atomic (notmuch_database_t *notmuch);
+
/* Retrieve a directory object from the database for 'path'.
*
* Here, 'path' should be a path relative to the path of 'database'
* (see notmuch_database_get_path), or else should be an absolute path
* with initial components that match the path of 'database'.
+ *
+ * Can return NULL if a Xapian exception occurs.
*/
notmuch_directory_t *
notmuch_database_get_directory (notmuch_database_t *database,
const char *path);
-/* Add a new message to the given notmuch database.
+/* Add a new message to the given notmuch database or associate an
+ * additional filename with an existing message.
*
- * Here,'filename' should be a path relative to the path of
+ * Here, 'filename' should be a path relative to the path of
* 'database' (see notmuch_database_get_path), or else should be an
* absolute filename with initial components that match the path of
* 'database'.
* notmuch database will reference the filename, and will not copy the
* entire contents of the file.
*
- * If 'message' is not NULL, then, on successful return '*message'
+ * If another message with the same message ID already exists in the
+ * database, rather than creating a new message, this adds 'filename'
+ * to the list of the filenames for the existing message.
+ *
+ * If 'message' is not NULL, then, on successful return
+ * (NOTMUCH_STATUS_SUCCESS or NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID) '*message'
* will be initialized to a message object that can be used for things
* such as adding tags to the just-added message. The user should call
* notmuch_message_destroy when done with the message. On any failure
*
* NOTMUCH_STATUS_SUCCESS: Message successfully added to database.
*
+ * NOTMUCH_STATUS_XAPIAN_EXCEPTION: A Xapian exception occurred,
+ * message not added.
+ *
* NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID: Message has the same message
* ID as another message already in the database. The new
* filename was successfully added to the message in the database
- * (if not already present).
+ * (if not already present) and the existing message is returned.
*
* NOTMUCH_STATUS_FILE_ERROR: an error occurred trying to open the
* file, (such as permission denied, or file not found,
const char *filename,
notmuch_message_t **message);
-/* Remove a message from the given notmuch database.
+/* Remove a message filename from the given notmuch database. If the
+ * message has no more filenames, remove the message.
*
- * Note that only this particular filename association is removed from
- * the database. If the same message (as determined by the message ID)
- * is still available via other filenames, then the message will
- * persist in the database for those filenames. When the last filename
- * is removed for a particular message, the database content for that
- * message will be entirely removed.
+ * If the same message (as determined by the message ID) is still
+ * available via other filenames, then the message will persist in the
+ * database for those filenames. When the last filename is removed for
+ * a particular message, the database content for that message will be
+ * entirely removed.
*
* Return value:
*
* NOTMUCH_STATUS_SUCCESS: The last filename was removed and the
* message was removed from the database.
*
+ * NOTMUCH_STATUS_XAPIAN_EXCEPTION: A Xapian exception occurred,
+ * message not removed.
+ *
* NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID: This filename was removed but
* the message persists in the database with at least one other
* filename.
/* Find a message with the given message_id.
*
- * If the database contains a message with the given message_id, then
- * a new notmuch_message_t object is returned. The caller should call
- * notmuch_message_destroy when done with the message.
+ * If a message with the given message_id is found then, on successful return
+ * (NOTMUCH_STATUS_SUCCESS) '*message' will be initialized to a message
+ * object. The caller should call notmuch_message_destroy when done with the
+ * message.
+ *
+ * On any failure or when the message is not found, this function initializes
+ * '*message' to NULL. This means, when NOTMUCH_STATUS_SUCCESS is returned, the
+ * caller is supposed to check '*message' for NULL to find out whether the
+ * message with the given message_id was found.
+ *
+ * Return value:
+ *
+ * NOTMUCH_STATUS_SUCCESS: Successful return, check '*message'.
+ *
+ * NOTMUCH_STATUS_NULL_POINTER: The given 'message' argument is NULL
*
- * If no message is found with the given message_id or if an
- * out-of-memory situation occurs, this function returns NULL.
+ * NOTMUCH_STATUS_OUT_OF_MEMORY: Out of memory, creating message object
+ *
+ * NOTMUCH_STATUS_XAPIAN_EXCEPTION: A Xapian exception occurred
*/
-notmuch_message_t *
+notmuch_status_t
notmuch_database_find_message (notmuch_database_t *database,
- const char *message_id);
+ const char *message_id,
+ notmuch_message_t **message);
+
+/* Find a message with the given filename.
+ *
+ * If the database contains a message with the given filename then, on
+ * successful return (NOTMUCH_STATUS_SUCCESS) '*message' will be initialized to
+ * a message object. The caller should call notmuch_message_destroy when done
+ * with the message.
+ *
+ * On any failure or when the message is not found, this function initializes
+ * '*message' to NULL. This means, when NOTMUCH_STATUS_SUCCESS is returned, the
+ * caller is supposed to check '*message' for NULL to find out whether the
+ * message with the given filename is found.
+ *
+ * Return value:
+ *
+ * NOTMUCH_STATUS_SUCCESS: Successful return, check '*message'
+ *
+ * NOTMUCH_STATUS_NULL_POINTER: The given 'message' argument is NULL
+ *
+ * NOTMUCH_STATUS_OUT_OF_MEMORY: Out of memory, creating the message object
+ *
+ * NOTMUCH_STATUS_XAPIAN_EXCEPTION: A Xapian exception occurred
+ */
+notmuch_status_t
+notmuch_database_find_message_by_filename (notmuch_database_t *notmuch,
+ const char *filename,
+ notmuch_message_t **message);
/* Return a list of all tags found in the database.
*
typedef enum {
NOTMUCH_SORT_OLDEST_FIRST,
NOTMUCH_SORT_NEWEST_FIRST,
- NOTMUCH_SORT_MESSAGE_ID
+ NOTMUCH_SORT_MESSAGE_ID,
+ NOTMUCH_SORT_UNSORTED
} notmuch_sort_t;
+/* Return the query_string of this query. See notmuch_query_create. */
+const char *
+notmuch_query_get_query_string (notmuch_query_t *query);
+
+/* Specify whether to results should omit the excluded results rather
+ * than just marking them excluded. This is useful for passing a
+ * notmuch_messages_t not containing the excluded messages to other
+ * functions. */
+void
+notmuch_query_set_omit_excluded_messages (notmuch_query_t *query, notmuch_bool_t omit);
+
/* Specify the sorting desired for this query. */
void
notmuch_query_set_sort (notmuch_query_t *query, notmuch_sort_t sort);
+/* Return the sort specified for this query. See notmuch_query_set_sort. */
+notmuch_sort_t
+notmuch_query_get_sort (notmuch_query_t *query);
+
+/* Add a tag that will be excluded from the query results by default.
+ * This exclusion will be overridden if this tag appears explicitly in
+ * the query. */
+void
+notmuch_query_add_tag_exclude (notmuch_query_t *query, const char *tag);
+
/* Execute a query for threads, returning a notmuch_threads_t object
* which can be used to iterate over the results. The returned threads
* object is owned by the query and as such, will only be valid until
* notmuch_threads_t object. (For consistency, we do provide a
* notmuch_threads_destroy function, but there's no good reason
* to call it if the query is about to be destroyed).
+ *
+ * If a Xapian exception occurs this function will return NULL.
*/
notmuch_threads_t *
notmuch_query_search_threads (notmuch_query_t *query);
* notmuch_messages_t object. (For consistency, we do provide a
* notmuch_messages_destroy function, but there's no good
* reason to call it if the query is about to be destroyed).
+ *
+ * If a Xapian exception occurs this function will return NULL.
*/
notmuch_messages_t *
notmuch_query_search_messages (notmuch_query_t *query);
*
* It's not strictly necessary to call this function. All memory from
* the notmuch_threads_t object will be reclaimed when the
- * containg query object is destroyed.
+ * containing query object is destroyed.
*/
void
notmuch_threads_destroy (notmuch_threads_t *threads);
*
* This function performs a search and returns Xapian's best
* guess as to number of matching messages.
+ *
+ * If a Xapian exception occurs, this function may return 0 (after
+ * printing a message).
*/
unsigned
notmuch_query_count_messages (notmuch_query_t *query);
+/* Return the number of threads matching a search.
+ *
+ * This function performs a search and returns the number of unique thread IDs
+ * in the matching messages. This is the same as number of threads matching a
+ * search.
+ *
+ * Note that this is a significantly heavier operation than
+ * notmuch_query_count_messages().
+ *
+ * If an error occurs, this function may return 0.
+ */
+unsigned
+notmuch_query_count_threads (notmuch_query_t *query);
+
/* Get the thread ID of 'thread'.
*
* The returned string belongs to 'thread' and as such, should not be
/* Get the number of messages in 'thread' that matched the search.
*
* This count includes only the messages in this thread that were
- * matched by the search from which the thread was created. Contrast
- * with notmuch_thread_get_total_messages() .
+ * matched by the search from which the thread was created and were
+ * not excluded by any exclude tags passed in with the query (see
+ * notmuch_query_add_tag_exclude). Contrast with
+ * notmuch_thread_get_total_messages() .
*/
int
notmuch_thread_get_matched_messages (notmuch_thread_t *thread);
* Note: If this message corresponds to multiple files in the mail
* store, (that is, multiple files contain identical message IDs),
* this function will arbitrarily return a single one of those
- * filenames.
+ * filenames. See notmuch_message_get_filenames for returning the
+ * complete list of filenames.
*/
const char *
notmuch_message_get_filename (notmuch_message_t *message);
+/* Get all filenames for the email corresponding to 'message'.
+ *
+ * Returns a notmuch_filenames_t iterator listing all the filenames
+ * associated with 'message'. These files may not have identical
+ * content, but each will have the identical Message-ID.
+ *
+ * Each filename in the iterator is an absolute filename, (the initial
+ * component will match notmuch_database_get_path() ).
+ */
+notmuch_filenames_t *
+notmuch_message_get_filenames (notmuch_message_t *message);
+
/* Message flags */
typedef enum _notmuch_message_flag {
NOTMUCH_MESSAGE_FLAG_MATCH,
+ NOTMUCH_MESSAGE_FLAG_EXCLUDED
} notmuch_message_flag_t;
/* Get a value of a flag for the email corresponding to 'message'. */
notmuch_status_t
notmuch_message_remove_all_tags (notmuch_message_t *message);
+/* Add/remove tags according to maildir flags in the message filename(s)
+ *
+ * This function examines the filenames of 'message' for maildir
+ * flags, and adds or removes tags on 'message' as follows when these
+ * flags are present:
+ *
+ * Flag Action if present
+ * ---- -----------------
+ * 'D' Adds the "draft" tag to the message
+ * 'F' Adds the "flagged" tag to the message
+ * 'P' Adds the "passed" tag to the message
+ * 'R' Adds the "replied" tag to the message
+ * 'S' Removes the "unread" tag from the message
+ *
+ * For each flag that is not present, the opposite action (add/remove)
+ * is performed for the corresponding tags.
+ *
+ * Flags are identified as trailing components of the filename after a
+ * sequence of ":2,".
+ *
+ * If there are multiple filenames associated with this message, the
+ * flag is considered present if it appears in one or more
+ * filenames. (That is, the flags from the multiple filenames are
+ * combined with the logical OR operator.)
+ *
+ * A client can ensure that notmuch database tags remain synchronized
+ * with maildir flags by calling this function after each call to
+ * notmuch_database_add_message. See also
+ * notmuch_message_tags_to_maildir_flags for synchronizing tag changes
+ * back to maildir flags.
+ */
+notmuch_status_t
+notmuch_message_maildir_flags_to_tags (notmuch_message_t *message);
+
+/* Rename message filename(s) to encode tags as maildir flags
+ *
+ * Specifically, for each filename corresponding to this message:
+ *
+ * If the filename is not in a maildir directory, do nothing. (A
+ * maildir directory is determined as a directory named "new" or
+ * "cur".) Similarly, if the filename has invalid maildir info,
+ * (repeated or outof-ASCII-order flag characters after ":2,"), then
+ * do nothing.
+ *
+ * If the filename is in a maildir directory, rename the file so that
+ * its filename ends with the sequence ":2," followed by zero or more
+ * of the following single-character flags (in ASCII order):
+ *
+ * 'D' iff the message has the "draft" tag
+ * 'F' iff the message has the "flagged" tag
+ * 'P' iff the message has the "passed" tag
+ * 'R' iff the message has the "replied" tag
+ * 'S' iff the message does not have the "unread" tag
+ *
+ * Any existing flags unmentioned in the list above will be preserved
+ * in the renaming.
+ *
+ * Also, if this filename is in a directory named "new", rename it to
+ * be within the neighboring directory named "cur".
+ *
+ * A client can ensure that maildir filename flags remain synchronized
+ * with notmuch database tags by calling this function after changing
+ * tags, (after calls to notmuch_message_add_tag,
+ * notmuch_message_remove_tag, or notmuch_message_freeze/
+ * notmuch_message_thaw). See also notmuch_message_maildir_flags_to_tags
+ * for synchronizing maildir flag changes back to tags.
+ */
+notmuch_status_t
+notmuch_message_tags_to_maildir_flags (notmuch_message_t *message);
+
/* Freeze the current state of 'message' within the database.
*
* This means that changes to the message state, (via