#include <unistd.h>
#include "database-private.h"
#include "parse-time-vrp.h"
#if HAVE_XAPIAN_DB_RETRY_LOCK
#define DB_ACTION (Xapian::DB_CREATE_OR_OPEN | Xapian::DB_RETRY_LOCK)
#else
#define DB_ACTION Xapian::DB_CREATE_OR_OPEN
#endif
notmuch_status_t
notmuch_database_open (const char *path,
notmuch_database_mode_t mode,
notmuch_database_t **database)
{
char *status_string = NULL;
notmuch_status_t status;
status = notmuch_database_open_verbose (path, mode, database,
&status_string);
if (status_string) {
fputs (status_string, stderr);
free (status_string);
}
return status;
}
notmuch_status_t
notmuch_database_open_verbose (const char *path,
notmuch_database_mode_t mode,
notmuch_database_t **database,
char **status_string)
{
notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
void *local = talloc_new (NULL);
notmuch_database_t *notmuch = NULL;
char *notmuch_path, *xapian_path, *incompat_features;
char *message = NULL;
struct stat st;
int err;
unsigned int version;
static int initialized = 0;
if (path == NULL) {
message = strdup ("Error: Cannot open a database for a NULL path.\n");
status = NOTMUCH_STATUS_NULL_POINTER;
goto DONE;
}
if (path[0] != '/') {
message = strdup ("Error: Database path must be absolute.\n");
status = NOTMUCH_STATUS_PATH_ERROR;
goto DONE;
}
if (! (notmuch_path = talloc_asprintf (local, "%s/%s", path, ".notmuch"))) {
message = strdup ("Out of memory\n");
status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
err = stat (notmuch_path, &st);
if (err) {
IGNORE_RESULT (asprintf (&message, "Error opening database at %s: %s\n",
notmuch_path, strerror (errno)));
status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
if (! (xapian_path = talloc_asprintf (local, "%s/%s", notmuch_path, "xapian"))) {
message = strdup ("Out of memory\n");
status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
/* Initialize the GLib type system and threads */
#if ! GLIB_CHECK_VERSION (2, 35, 1)
g_type_init ();
#endif
/* Initialize gmime */
if (! initialized) {
g_mime_init ();
initialized = 1;
}
notmuch = talloc_zero (NULL, notmuch_database_t);
notmuch->exception_reported = false;
notmuch->status_string = NULL;
notmuch->path = talloc_strdup (notmuch, path);
strip_trailing (notmuch->path, '/');
notmuch->writable_xapian_db = NULL;
notmuch->atomic_nesting = 0;
notmuch->view = 1;
try {
std::string last_thread_id;
std::string last_mod;
if (mode == NOTMUCH_DATABASE_MODE_READ_WRITE) {
notmuch->writable_xapian_db = new Xapian::WritableDatabase (xapian_path,
DB_ACTION);
notmuch->xapian_db = notmuch->writable_xapian_db;
} else {
notmuch->xapian_db = new Xapian::Database (xapian_path);
}
/* Check version. As of database version 3, we represent
* changes in terms of features, so assume a version bump
* means a dramatically incompatible change. */
version = notmuch_database_get_version (notmuch);
if (version > NOTMUCH_DATABASE_VERSION) {
IGNORE_RESULT (asprintf (&message,
"Error: Notmuch database at %s\n"
" has a newer database format version (%u) than supported by this\n"
" version of notmuch (%u).\n",
notmuch_path, version, NOTMUCH_DATABASE_VERSION));
notmuch_database_destroy (notmuch);
notmuch = NULL;
status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
/* Check features. */
incompat_features = NULL;
notmuch->features = _notmuch_database_parse_features (
local, notmuch->xapian_db->get_metadata ("features").c_str (),
version, mode == NOTMUCH_DATABASE_MODE_READ_WRITE ? 'w' : 'r',
&incompat_features);
if (incompat_features) {
IGNORE_RESULT (asprintf (&message,
"Error: Notmuch database at %s\n"
" requires features (%s)\n"
" not supported by this version of notmuch.\n",
notmuch_path, incompat_features));
notmuch_database_destroy (notmuch);
notmuch = NULL;
status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
notmuch->last_doc_id = notmuch->xapian_db->get_lastdocid ();
last_thread_id = notmuch->xapian_db->get_metadata ("last_thread_id");
if (last_thread_id.empty ()) {
notmuch->last_thread_id = 0;
} else {
const char *str;
char *end;
str = last_thread_id.c_str ();
notmuch->last_thread_id = strtoull (str, &end, 16);
if (*end != '\0')
INTERNAL_ERROR ("Malformed database last_thread_id: %s", str);
}
/* Get current highest revision number. */
last_mod = notmuch->xapian_db->get_value_upper_bound (
NOTMUCH_VALUE_LAST_MOD);
if (last_mod.empty ())
notmuch->revision = 0;
else
notmuch->revision = Xapian::sortable_unserialise (last_mod);
notmuch->uuid = talloc_strdup (
notmuch, notmuch->xapian_db->get_uuid ().c_str ());
notmuch->query_parser = new Xapian::QueryParser;
notmuch->term_gen = new Xapian::TermGenerator;
notmuch->term_gen->set_stemmer (Xapian::Stem ("english"));
notmuch->value_range_processor = new Xapian::NumberRangeProcessor (NOTMUCH_VALUE_TIMESTAMP);
notmuch->date_range_processor = new ParseTimeRangeProcessor (NOTMUCH_VALUE_TIMESTAMP, "date:");
notmuch->last_mod_range_processor = new Xapian::NumberRangeProcessor (NOTMUCH_VALUE_LAST_MOD, "lastmod:");
notmuch->query_parser->set_default_op (Xapian::Query::OP_AND);
notmuch->query_parser->set_database (*notmuch->xapian_db);
notmuch->query_parser->set_stemmer (Xapian::Stem ("english"));
notmuch->query_parser->set_stemming_strategy (Xapian::QueryParser::STEM_SOME);
notmuch->query_parser->add_rangeprocessor (notmuch->value_range_processor);
notmuch->query_parser->add_rangeprocessor (notmuch->date_range_processor);
notmuch->query_parser->add_rangeprocessor (notmuch->last_mod_range_processor);
status = _notmuch_database_setup_standard_query_fields (notmuch);
if (status)
goto DONE;
status = _notmuch_database_setup_user_query_fields (notmuch);
if (status)
goto DONE;
} catch (const Xapian::Error &error) {
IGNORE_RESULT (asprintf (&message, "A Xapian exception occurred opening database: %s\n",
error.get_msg ().c_str ()));
notmuch_database_destroy (notmuch);
notmuch = NULL;
status = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
DONE:
talloc_free (local);
if (message) {
if (status_string)
*status_string = message;
else
free (message);
}
if (database)
*database = notmuch;
else
talloc_free (notmuch);
if (notmuch)
notmuch->open = true;
return status;
}
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