lib/open: Use check for existing database by trial opening

This is a bit heavyweight for now, but it will make more sense when we
check multiple locations for the Xapian database.
This commit is contained in:
David Bremner 2021-02-07 12:54:45 -04:00
parent aa59424812
commit 986056bdbc
2 changed files with 48 additions and 16 deletions

View file

@ -232,6 +232,51 @@ _alloc_notmuch ()
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;
}
static notmuch_status_t
_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;
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)
@ -410,7 +455,6 @@ notmuch_database_open_with_config (const char *database_path,
notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
void *local = talloc_new (NULL);
notmuch_database_t *notmuch = NULL;
char *notmuch_path;
char *message = NULL;
GKeyFile *key_file = NULL;
@ -426,28 +470,16 @@ notmuch_database_open_with_config (const char *database_path,
&message)))
goto DONE;
_set_database_path (notmuch, database_path);
status = _db_dir_exists (database_path, &message);
if (status)
goto DONE;
if (! (notmuch_path = talloc_asprintf (local, "%s/%s", database_path, ".notmuch"))) {
message = strdup ("Out of memory\n");
status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
_set_database_path (notmuch, database_path);
status = _db_dir_exists (notmuch_path, &message);
status = _choose_xapian_path (notmuch, database_path, &notmuch->xapian_path, &message);
if (status)
goto DONE;
if (! (notmuch->xapian_path = talloc_asprintf (notmuch, "%s/%s", notmuch_path, "xapian"))) {
message = strdup ("Out of memory\n");
status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
status = _finish_open (notmuch, profile, mode, key_file, &message);
DONE:

View file

@ -17,7 +17,7 @@ $TEST_DIRECTORY/symbol-test ${PWD}/fakedb ${PWD}/nonexistent 2>&1 \
| notmuch_dir_sanitize | sed -e "s,\`,\',g" -e "s,No [^[:space:]]* database,No XXXXXX database,g" > OUTPUT
cat <<EOF > EXPECTED
A Xapian exception occurred opening database: Couldn't stat 'CWD/fakedb/.notmuch/xapian'
Cannot open Xapian database at CWD/fakedb/.notmuch/xapian: Couldn't stat 'CWD/fakedb/.notmuch/xapian'
caught No XXXXXX database found at path 'CWD/nonexistent'
EOF
test_expect_equal_file EXPECTED OUTPUT