[patch v3 11/12] lib: add notmuch_message_reindex
David Bremner
david at tethera.net
Sun Jun 4 05:32:34 PDT 2017
From: Daniel Kahn Gillmor <dkg at fifthhorseman.net>
This new function asks the database to reindex a given message.
The parameter `indexopts` is currently ignored, but is intended to
provide an extensible API to support e.g. changing the encryption or
filtering status (e.g. whether and how certain non-plaintext parts are
indexed).
---
lib/add-message.cc | 2 +-
lib/message.cc | 108 +++++++++++++++++++++++++++++++++++++++++++++++++-
lib/notmuch-private.h | 6 +++
lib/notmuch.h | 15 +++++++
4 files changed, 129 insertions(+), 2 deletions(-)
diff --git a/lib/add-message.cc b/lib/add-message.cc
index ae9b14a7..26405742 100644
--- a/lib/add-message.cc
+++ b/lib/add-message.cc
@@ -220,7 +220,7 @@ _my_talloc_free_for_g_hash (void *ptr)
talloc_free (ptr);
}
-static notmuch_status_t
+notmuch_status_t
_notmuch_database_link_message_to_parents (notmuch_database_t *notmuch,
notmuch_message_t *message,
notmuch_message_file_t *message_file,
diff --git a/lib/message.cc b/lib/message.cc
index 33c24354..5b6abc83 100644
--- a/lib/message.cc
+++ b/lib/message.cc
@@ -579,7 +579,9 @@ void
_notmuch_message_remove_terms (notmuch_message_t *message, const char *prefix)
{
Xapian::TermIterator i;
- size_t prefix_len = strlen (prefix);
+ size_t prefix_len = 0;
+
+ prefix_len = strlen (prefix);
while (1) {
i = message->doc.termlist_begin ();
@@ -1934,3 +1936,107 @@ _notmuch_message_frozen (notmuch_message_t *message)
{
return message->frozen;
}
+
+notmuch_status_t
+notmuch_message_reindex (notmuch_message_t *message,
+ notmuch_param_t unused (*indexopts))
+{
+ notmuch_database_t *notmuch = NULL;
+ notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
+ notmuch_private_status_t private_status;
+ notmuch_filenames_t *orig_filenames = NULL;
+ const char *orig_thread_id = NULL;
+ notmuch_message_file_t *message_file = NULL;
+
+ int found = 0;
+
+ if (message == NULL)
+ return NOTMUCH_STATUS_NULL_POINTER;
+
+ /* Save in case we need to delete message */
+ orig_thread_id = notmuch_message_get_thread_id (message);
+ if (!orig_thread_id) {
+ /* XXX TODO: make up new error return? */
+ INTERNAL_ERROR ("message without thread-id");
+ }
+
+ /* strdup it because the metadata may be invalidated */
+ orig_thread_id = talloc_strdup (message, orig_thread_id);
+
+ notmuch = _notmuch_message_database (message);
+
+ ret = _notmuch_database_ensure_writable (notmuch);
+ if (ret)
+ return ret;
+
+ orig_filenames = notmuch_message_get_filenames (message);
+
+ private_status = _notmuch_message_remove_indexed_terms (message);
+ if (private_status) {
+ ret = COERCE_STATUS(private_status, "error removing terms");
+ goto DONE;
+ }
+
+ /* re-add the filenames with the associated indexopts */
+ for (; notmuch_filenames_valid (orig_filenames);
+ notmuch_filenames_move_to_next (orig_filenames)) {
+
+ const char *date;
+ const char *from, *to, *subject;
+ char *message_id = NULL;
+ const char *thread_id = NULL;
+
+ const char *filename = notmuch_filenames_get (orig_filenames);
+
+ message_file = _notmuch_message_file_open (notmuch, filename);
+ if (message_file == NULL)
+ continue;
+
+ ret = _notmuch_message_file_get_headers (message_file,
+ &from, &subject, &to, &date,
+ &message_id);
+ if (ret)
+ goto DONE;
+
+ /* XXX TODO: deal with changing message id? */
+
+ _notmuch_message_add_filename (message, filename);
+
+ ret = _notmuch_database_link_message_to_parents (notmuch, message,
+ message_file,
+ &thread_id);
+ if (ret)
+ goto DONE;
+
+ if (thread_id == NULL)
+ thread_id = orig_thread_id;
+
+ _notmuch_message_add_term (message, "thread", thread_id);
+ _notmuch_message_set_header_values (message, date, from, subject);
+
+ ret = _notmuch_message_index_file (message, message_file);
+
+ if (ret == NOTMUCH_STATUS_FILE_ERROR)
+ continue;
+ if (ret)
+ goto DONE;
+
+ found++;
+ _notmuch_message_file_close (message_file);
+ message_file = NULL;
+ }
+ if (found == 0) {
+ /* put back thread id to help cleanup */
+ _notmuch_message_add_term (message, "thread", orig_thread_id);
+ ret = _notmuch_message_delete (message);
+ } else {
+ _notmuch_message_sync (message);
+ }
+
+ DONE:
+ if (message_file)
+ _notmuch_message_file_close (message_file);
+
+ /* XXX TODO destroy orig_filenames? */
+ return ret;
+}
diff --git a/lib/notmuch-private.h b/lib/notmuch-private.h
index a4a20d8e..f4250442 100644
--- a/lib/notmuch-private.h
+++ b/lib/notmuch-private.h
@@ -436,6 +436,12 @@ _notmuch_message_file_get_headers (notmuch_message_file_t *message_file,
const char *
_notmuch_message_file_get_filename (notmuch_message_file_t *message);
+/* add-message.cc */
+notmuch_status_t
+_notmuch_database_link_message_to_parents (notmuch_database_t *notmuch,
+ notmuch_message_t *message,
+ notmuch_message_file_t *message_file,
+ const char **thread_id);
/* index.cc */
notmuch_status_t
diff --git a/lib/notmuch.h b/lib/notmuch.h
index 7bd5346f..df0d7d2c 100644
--- a/lib/notmuch.h
+++ b/lib/notmuch.h
@@ -219,6 +219,7 @@ typedef struct _notmuch_tags notmuch_tags_t;
typedef struct _notmuch_directory notmuch_directory_t;
typedef struct _notmuch_filenames notmuch_filenames_t;
typedef struct _notmuch_config_list notmuch_config_list_t;
+typedef struct _notmuch_param notmuch_param_t;
#endif /* __DOXYGEN__ */
/**
@@ -1394,6 +1395,20 @@ notmuch_filenames_t *
notmuch_message_get_filenames (notmuch_message_t *message);
/**
+ * Re-index the e-mail corresponding to 'message' using the supplied index options
+ *
+ * Returns the status of the re-index operation. (see the return
+ * codes documented in notmuch_database_add_message)
+ *
+ * After reindexing, the user should discard the message object passed
+ * in here by calling notmuch_message_destroy, since it refers to the
+ * original message, not to the reindexed message.
+ */
+notmuch_status_t
+notmuch_message_reindex (notmuch_message_t *message,
+ notmuch_param_t *indexopts);
+
+/**
* Message flags.
*/
typedef enum _notmuch_message_flag {
--
2.11.0
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