notmuch/lib/open.cc

889 lines
23 KiB
C++
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#include <unistd.h>
#include <libgen.h>
#include "database-private.h"
#include "parse-time-vrp.h"
#include "path-util.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_with_config (path, mode, "", NULL,
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)
{
return notmuch_database_open_with_config (path, mode, "", NULL,
database, status_string);
}
static const char *
_xdg_dir (void *ctx,
const char *xdg_root_variable,
const char *xdg_prefix,
const char *profile_name)
{
const char *xdg_root = getenv (xdg_root_variable);
if (! xdg_root) {
const char *home = getenv ("HOME");
if (! home) return NULL;
xdg_root = talloc_asprintf (ctx,
"%s/%s",
home,
xdg_prefix);
}
if (! profile_name)
profile_name = getenv ("NOTMUCH_PROFILE");
if (! profile_name)
profile_name = "default";
return talloc_asprintf (ctx,
"%s/notmuch/%s",
xdg_root,
profile_name);
}
static notmuch_status_t
_choose_dir (notmuch_database_t *notmuch,
const char *profile,
notmuch_config_key_t key,
const char *xdg_var,
const char *xdg_subdir,
const char *subdir,
char **message = NULL)
{
const char *parent;
const char *dir;
struct stat st;
int err;
dir = notmuch_config_get (notmuch, key);
if (dir)
return NOTMUCH_STATUS_SUCCESS;
parent = _xdg_dir (notmuch, xdg_var, xdg_subdir, profile);
if (! parent)
return NOTMUCH_STATUS_PATH_ERROR;
dir = talloc_asprintf (notmuch, "%s/%s", parent, subdir);
err = stat (dir, &st);
if (err) {
if (errno == ENOENT) {
char *notmuch_path = dirname (talloc_strdup (notmuch, notmuch->xapian_path));
dir = talloc_asprintf (notmuch, "%s/%s", notmuch_path, subdir);
} else {
IGNORE_RESULT (asprintf (message, "Error: Cannot stat %s: %s.\n",
dir, strerror (errno)));
return NOTMUCH_STATUS_FILE_ERROR;
}
}
_notmuch_config_cache (notmuch, key, dir);
return NOTMUCH_STATUS_SUCCESS;
}
static notmuch_status_t
_load_key_file (notmuch_database_t *notmuch,
const char *path,
const char *profile,
GKeyFile **key_file)
{
notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
if (path && EMPTY_STRING (path))
goto DONE;
if (! path)
path = getenv ("NOTMUCH_CONFIG");
if (path)
path = talloc_strdup (notmuch, path);
else {
const char *dir = _xdg_dir (notmuch, "XDG_CONFIG_HOME", ".config", profile);
if (dir) {
path = talloc_asprintf (notmuch, "%s/config", dir);
if (access (path, R_OK) != 0)
path = NULL;
}
}
if (! path) {
const char *home = getenv ("HOME");
path = talloc_asprintf (notmuch, "%s/.notmuch-config", home);
if (! profile)
profile = getenv ("NOTMUCH_PROFILE");
if (profile)
path = talloc_asprintf (notmuch, "%s.%s", path, profile);
}
*key_file = g_key_file_new ();
if (! g_key_file_load_from_file (*key_file, path, G_KEY_FILE_NONE, NULL)) {
status = NOTMUCH_STATUS_NO_CONFIG;
}
DONE:
if (path)
notmuch->config_path = path;
return status;
}
static notmuch_status_t
_db_dir_exists (const char *database_path, char **message)
{
struct stat st;
int err;
err = stat (database_path, &st);
if (err) {
IGNORE_RESULT (asprintf (message, "Error: Cannot open database at %s: %s.\n",
database_path, strerror (errno)));
return NOTMUCH_STATUS_FILE_ERROR;
}
if (! S_ISDIR (st.st_mode)) {
IGNORE_RESULT (asprintf (message, "Error: Cannot open database at %s: "
"Not a directory.\n",
database_path));
return NOTMUCH_STATUS_FILE_ERROR;
}
return NOTMUCH_STATUS_SUCCESS;
}
static notmuch_status_t
_choose_database_path (notmuch_database_t *notmuch,
const char *profile,
GKeyFile *key_file,
const char **database_path,
char **message)
{
notmuch_status_t status;
if (! *database_path) {
*database_path = getenv ("NOTMUCH_DATABASE");
}
if (! *database_path && key_file) {
char *path = g_key_file_get_string (key_file, "database", "path", NULL);
if (path) {
if (path[0] == '/')
*database_path = talloc_strdup (notmuch, path);
else
*database_path = talloc_asprintf (notmuch, "%s/%s", getenv ("HOME"), path);
g_free (path);
}
}
if (! *database_path) {
*database_path = _xdg_dir (notmuch, "XDG_DATA_HOME", ".local/share", profile);
status = _db_dir_exists (*database_path, message);
if (status) {
*database_path = NULL;
} else {
notmuch->params |= NOTMUCH_PARAM_SPLIT;
}
}
if (! *database_path) {
*database_path = getenv ("MAILDIR");
}
if (! *database_path) {
*database_path = talloc_asprintf (notmuch, "%s/mail", getenv ("HOME"));
status = _db_dir_exists (*database_path, message);
if (status) {
*database_path = NULL;
}
}
if (*database_path == NULL) {
*message = strdup ("Error: could not locate database.\n");
return NOTMUCH_STATUS_NO_DATABASE;
}
if (*database_path[0] != '/') {
*message = strdup ("Error: Database path must be absolute.\n");
return NOTMUCH_STATUS_PATH_ERROR;
}
status = _db_dir_exists (*database_path, message);
if (status) {
IGNORE_RESULT (asprintf (message,
"Error: database path '%s' does not exist or is not a directory.\n",
*database_path));
return NOTMUCH_STATUS_NO_DATABASE;
}
return NOTMUCH_STATUS_SUCCESS;
}
static notmuch_status_t
_mkdir (const char *path, char **message)
{
if (g_mkdir_with_parents (path, 0755)) {
IGNORE_RESULT (asprintf (message, "Error: Cannot create directory %s: %s.\n",
path, strerror (errno)));
return NOTMUCH_STATUS_FILE_ERROR;
}
return NOTMUCH_STATUS_SUCCESS;
}
static notmuch_database_t *
_alloc_notmuch (const char *database_path, const char *config_path, const char *profile)
{
notmuch_database_t *notmuch;
notmuch = talloc_zero (NULL, notmuch_database_t);
if (! notmuch)
return NULL;
notmuch->exception_reported = false;
notmuch->status_string = NULL;
notmuch->writable_xapian_db = NULL;
notmuch->config_path = NULL;
notmuch->atomic_nesting = 0;
notmuch->transaction_count = 0;
notmuch->transaction_threshold = 0;
notmuch->view = 1;
notmuch->params = NOTMUCH_PARAM_NONE;
if (database_path)
notmuch->params |= NOTMUCH_PARAM_DATABASE;
if (config_path)
notmuch->params |= NOTMUCH_PARAM_CONFIG;
if (profile)
notmuch->params |= NOTMUCH_PARAM_PROFILE;
return notmuch;
}
static notmuch_status_t
_trial_open (const char *xapian_path, char **message_ptr)
{
try {
Xapian::Database db (xapian_path);
} catch (const Xapian::DatabaseOpeningError &error) {
IGNORE_RESULT (asprintf (message_ptr,
"Cannot open Xapian database at %s: %s\n",
xapian_path,
error.get_msg ().c_str ()));
return NOTMUCH_STATUS_PATH_ERROR;
} catch (const Xapian::Error &error) {
IGNORE_RESULT (asprintf (message_ptr,
"A Xapian exception occurred opening database: %s\n",
error.get_msg ().c_str ()));
return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
return NOTMUCH_STATUS_SUCCESS;
}
notmuch_status_t
_notmuch_choose_xapian_path (void *ctx, const char *database_path,
const char **xapian_path, char **message_ptr)
{
notmuch_status_t status;
const char *trial_path, *notmuch_path;
status = _db_dir_exists (database_path, message_ptr);
if (status)
goto DONE;
trial_path = talloc_asprintf (ctx, "%s/xapian", database_path);
status = _trial_open (trial_path, message_ptr);
if (status != NOTMUCH_STATUS_PATH_ERROR)
goto DONE;
if (*message_ptr)
free (*message_ptr);
notmuch_path = talloc_asprintf (ctx, "%s/.notmuch", database_path);
status = _db_dir_exists (notmuch_path, message_ptr);
if (status)
goto DONE;
trial_path = talloc_asprintf (ctx, "%s/xapian", notmuch_path);
status = _trial_open (trial_path, message_ptr);
DONE:
if (status == NOTMUCH_STATUS_SUCCESS)
*xapian_path = trial_path;
return status;
}
static void
_set_database_path (notmuch_database_t *notmuch,
const char *database_path)
{
char *path = talloc_strdup (notmuch, database_path);
strip_trailing (path, '/');
_notmuch_config_cache (notmuch, NOTMUCH_CONFIG_DATABASE_PATH, path);
}
static void
_load_database_state (notmuch_database_t *notmuch)
{
std::string last_thread_id;
std::string last_mod;
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 ());
}
static notmuch_status_t
_finish_open (notmuch_database_t *notmuch,
const char *profile,
notmuch_database_mode_t mode,
GKeyFile *key_file,
char **message_ptr)
{
notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
char *incompat_features;
char *message = NULL;
const char *autocommit_str;
char *autocommit_end;
unsigned int version;
const char *database_path = notmuch_database_get_path (notmuch);
try {
if (mode == NOTMUCH_DATABASE_MODE_READ_WRITE) {
notmuch->writable_xapian_db = new Xapian::WritableDatabase (notmuch->xapian_path,
DB_ACTION);
notmuch->xapian_db = notmuch->writable_xapian_db;
} else {
notmuch->xapian_db = new Xapian::Database (notmuch->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",
database_path, version, NOTMUCH_DATABASE_VERSION));
status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
/* Check features. */
incompat_features = NULL;
notmuch->features = _notmuch_database_parse_features (
notmuch, 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",
database_path, incompat_features));
status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
_load_database_state (notmuch);
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->stemmer = new Xapian::Stem ("english");
notmuch->query_parser->set_stemmer (*notmuch->stemmer);
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);
/* Configuration information is needed to set up query parser */
status = _notmuch_config_load_from_database (notmuch);
if (status)
goto DONE;
if (key_file)
status = _notmuch_config_load_from_file (notmuch, key_file);
if (status)
goto DONE;
status = _choose_dir (notmuch, profile,
NOTMUCH_CONFIG_HOOK_DIR,
"XDG_CONFIG_HOME",
".config",
"hooks",
&message);
if (status)
goto DONE;
status = _choose_dir (notmuch, profile,
NOTMUCH_CONFIG_BACKUP_DIR,
"XDG_DATA_HOME",
".local/share",
"backups",
&message);
if (status)
goto DONE;
status = _notmuch_config_load_defaults (notmuch);
if (status)
goto DONE;
autocommit_str = notmuch_config_get (notmuch, NOTMUCH_CONFIG_AUTOCOMMIT);
if (unlikely (! autocommit_str)) {
INTERNAL_ERROR ("missing configuration for autocommit");
}
notmuch->transaction_threshold = strtoul (autocommit_str, &autocommit_end, 10);
if (*autocommit_end != '\0')
INTERNAL_ERROR ("Malformed database database.autocommit value: %s", autocommit_str);
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 ()));
status = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
DONE:
if (message_ptr)
*message_ptr = message;
return status;
}
notmuch_status_t
notmuch_database_open_with_config (const char *database_path,
notmuch_database_mode_t mode,
const char *config_path,
const char *profile,
notmuch_database_t **database,
char **status_string)
{
notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
notmuch_database_t *notmuch = NULL;
char *message = NULL;
GKeyFile *key_file = NULL;
_notmuch_init ();
notmuch = _alloc_notmuch (database_path, config_path, profile);
if (! notmuch) {
status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
status = _load_key_file (notmuch, config_path, profile, &key_file);
if (status) {
message = strdup ("Error: cannot load config file.\n");
goto DONE;
}
if ((status = _choose_database_path (notmuch, profile, key_file,
&database_path,
&message)))
goto DONE;
status = _db_dir_exists (database_path, &message);
if (status)
goto DONE;
_set_database_path (notmuch, database_path);
status = _notmuch_choose_xapian_path (notmuch, database_path,
&notmuch->xapian_path, &message);
if (status)
goto DONE;
status = _finish_open (notmuch, profile, mode, key_file, &message);
DONE:
if (key_file)
g_key_file_free (key_file);
if (message) {
if (status_string)
*status_string = message;
else
free (message);
}
if (status && notmuch) {
notmuch_database_destroy (notmuch);
notmuch = NULL;
}
if (database)
*database = notmuch;
if (notmuch)
notmuch->open = true;
return status;
}
notmuch_status_t
notmuch_database_create (const char *path, notmuch_database_t **database)
{
char *status_string = NULL;
notmuch_status_t status;
status = notmuch_database_create_verbose (path, database,
&status_string);
if (status_string) {
fputs (status_string, stderr);
free (status_string);
}
return status;
}
notmuch_status_t
notmuch_database_create_verbose (const char *path,
notmuch_database_t **database,
char **status_string)
{
return notmuch_database_create_with_config (path, "", NULL, database, status_string);
}
notmuch_status_t
notmuch_database_create_with_config (const char *database_path,
const char *config_path,
const char *profile,
notmuch_database_t **database,
char **status_string)
{
notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
notmuch_database_t *notmuch = NULL;
const char *notmuch_path = NULL;
char *message = NULL;
GKeyFile *key_file = NULL;
_notmuch_init ();
notmuch = _alloc_notmuch (database_path, config_path, profile);
if (! notmuch) {
status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
status = _load_key_file (notmuch, config_path, profile, &key_file);
if (status) {
message = strdup ("Error: cannot load config file.\n");
goto DONE;
}
if ((status = _choose_database_path (notmuch, profile, key_file,
&database_path, &message)))
goto DONE;
_set_database_path (notmuch, database_path);
if (key_file && ! (notmuch->params & NOTMUCH_PARAM_SPLIT)) {
char *mail_root = notmuch_canonicalize_file_name (
g_key_file_get_string (key_file, "database", "mail_root", NULL));
char *db_path = notmuch_canonicalize_file_name (database_path);
if (mail_root && (0 != strcmp (mail_root, db_path)))
notmuch->params |= NOTMUCH_PARAM_SPLIT;
free (mail_root);
free (db_path);
}
if (notmuch->params & NOTMUCH_PARAM_SPLIT) {
notmuch_path = database_path;
} else {
if (! (notmuch_path = talloc_asprintf (notmuch, "%s/%s", database_path, ".notmuch"))) {
status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
status = _mkdir (notmuch_path, &message);
if (status)
goto DONE;
}
if (! (notmuch->xapian_path = talloc_asprintf (notmuch, "%s/%s", notmuch_path, "xapian"))) {
status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
status = _trial_open (notmuch->xapian_path, &message);
if (status == NOTMUCH_STATUS_SUCCESS) {
notmuch_database_destroy (notmuch);
notmuch = NULL;
status = NOTMUCH_STATUS_DATABASE_EXISTS;
goto DONE;
}
if (message)
free (message);
status = _finish_open (notmuch,
profile,
NOTMUCH_DATABASE_MODE_READ_WRITE,
key_file,
&message);
if (status)
goto DONE;
/* Upgrade doesn't add these feature to existing databases, but
* new databases have them. */
notmuch->features |= NOTMUCH_FEATURE_FROM_SUBJECT_ID_VALUES;
notmuch->features |= NOTMUCH_FEATURE_INDEXED_MIMETYPES;
notmuch->features |= NOTMUCH_FEATURE_UNPREFIX_BODY_ONLY;
status = notmuch_database_upgrade (notmuch, NULL, NULL);
if (status) {
notmuch_database_close (notmuch);
notmuch = NULL;
}
DONE:
if (key_file)
g_key_file_free (key_file);
if (message) {
if (status_string)
*status_string = message;
else
free (message);
}
if (status && notmuch) {
notmuch_database_destroy (notmuch);
notmuch = NULL;
}
if (database)
*database = notmuch;
if (notmuch)
notmuch->open = true;
return status;
}
notmuch_status_t
notmuch_database_reopen (notmuch_database_t *notmuch,
notmuch_database_mode_t new_mode)
{
notmuch_database_mode_t cur_mode = _notmuch_database_mode (notmuch);
if (notmuch->xapian_db == NULL) {
_notmuch_database_log (notmuch, "Cannot reopen closed or nonexistent database\n");
return NOTMUCH_STATUS_ILLEGAL_ARGUMENT;
}
try {
if (cur_mode == new_mode &&
new_mode == NOTMUCH_DATABASE_MODE_READ_ONLY) {
notmuch->xapian_db->reopen ();
} else {
notmuch->xapian_db->close ();
delete notmuch->xapian_db;
notmuch->xapian_db = NULL;
/* no need to free the same object twice */
notmuch->writable_xapian_db = NULL;
if (new_mode == NOTMUCH_DATABASE_MODE_READ_WRITE) {
notmuch->writable_xapian_db = new Xapian::WritableDatabase (notmuch->xapian_path,
DB_ACTION);
notmuch->xapian_db = notmuch->writable_xapian_db;
} else {
notmuch->xapian_db = new Xapian::Database (notmuch->xapian_path,
DB_ACTION);
}
}
_load_database_state (notmuch);
} catch (const Xapian::Error &error) {
if (! notmuch->exception_reported) {
_notmuch_database_log (notmuch, "Error: A Xapian exception reopening database: %s\n",
error.get_msg ().c_str ());
notmuch->exception_reported = true;
}
return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
notmuch->view++;
notmuch->open = true;
return NOTMUCH_STATUS_SUCCESS;
}
static notmuch_status_t
_maybe_load_config_from_database (notmuch_database_t *notmuch,
GKeyFile *key_file,
const char *database_path,
const char *profile)
{
char *message; /* ignored */
if (_db_dir_exists (database_path, &message))
return NOTMUCH_STATUS_NO_DATABASE;
_set_database_path (notmuch, database_path);
if (_notmuch_choose_xapian_path (notmuch, database_path, &notmuch->xapian_path, &message))
return NOTMUCH_STATUS_NO_DATABASE;
(void) _finish_open (notmuch, profile, NOTMUCH_DATABASE_MODE_READ_ONLY, key_file, &message);
return NOTMUCH_STATUS_SUCCESS;
}
notmuch_status_t
notmuch_database_load_config (const char *database_path,
const char *config_path,
const char *profile,
notmuch_database_t **database,
char **status_string)
{
notmuch_status_t status = NOTMUCH_STATUS_SUCCESS, warning = NOTMUCH_STATUS_SUCCESS;
notmuch_database_t *notmuch = NULL;
char *message = NULL;
GKeyFile *key_file = NULL;
_notmuch_init ();
notmuch = _alloc_notmuch (database_path, config_path, profile);
if (! notmuch) {
status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
status = _load_key_file (notmuch, config_path, profile, &key_file);
switch (status) {
case NOTMUCH_STATUS_SUCCESS:
break;
case NOTMUCH_STATUS_NO_CONFIG:
warning = status;
break;
default:
message = strdup ("Error: cannot load config file.\n");
goto DONE;
}
status = _choose_database_path (notmuch, profile, key_file,
&database_path, &message);
switch (status) {
case NOTMUCH_STATUS_NO_DATABASE:
case NOTMUCH_STATUS_SUCCESS:
if (! warning)
warning = status;
break;
default:
goto DONE;
}
if (database_path) {
status = _maybe_load_config_from_database (notmuch, key_file, database_path, profile);
switch (status) {
case NOTMUCH_STATUS_NO_DATABASE:
case NOTMUCH_STATUS_SUCCESS:
if (! warning)
warning = status;
break;
default:
goto DONE;
}
}
if (key_file) {
status = _notmuch_config_load_from_file (notmuch, key_file);
if (status)
goto DONE;
}
status = _notmuch_config_load_defaults (notmuch);
if (status)
goto DONE;
DONE:
if (status_string)
*status_string = message;
if (status &&
status != NOTMUCH_STATUS_NO_DATABASE
&& status != NOTMUCH_STATUS_NO_CONFIG) {
notmuch_database_destroy (notmuch);
notmuch = NULL;
}
if (database)
*database = notmuch;
if (status)
return status;
else
return warning;
}