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-rw-r--r--portato/db/__init__.py25
1 files changed, 18 insertions, 7 deletions
diff --git a/portato/db/__init__.py b/portato/db/__init__.py
index 190fa8a..9d21d3b 100644
--- a/portato/db/__init__.py
+++ b/portato/db/__init__.py
@@ -20,6 +20,8 @@ class UnknownDatabaseTypeError (Exception):
_SESSION = None
_TYPE = None
+_DEFAULT = "dict"
+_DATABASE = None
types = {
"sql": (_("SQLite"), _("Uses an SQLite-database to store package information.\nMay take longer to generate at the first time, but has advantages if portato is re-started with an unchanged portage tree. Additionally it allows to use fast SQL expressions for fetching the data.")),
@@ -27,9 +29,16 @@ types = {
"eixsql" : (_("eix + SQLite"), _("Similar to SQLite, but now uses the eix database to get the package information.\nThis should be much faster on startup, but requires that your eix database is always up-to-date."))
}
-def Database(type):
- global _SESSION, _TYPE
+def Database(type = None):
+ global _SESSION, _TYPE, _DATABASE
+ if type is None:
+ if _DATABASE is None:
+ warning("No database type specified! Falling back to default.")
+ return Database(_DEFAULT)
+ else:
+ return _DATABASE
+
if _SESSION is None:
_SESSION = Session("db.cfg", name = "DB")
_SESSION.load()
@@ -42,14 +51,14 @@ def Database(type):
from .sql import SQLDatabase
except ImportError:
warning(_("Cannot load %s."), "SQLDatabase")
- return Database("dict")
+ _DATABASE = Database("dict")
else:
- return SQLDatabase(SectionDict(_SESSION, type))
+ _DATABASE = SQLDatabase(SectionDict(_SESSION, type))
elif type == "dict":
debug("Using HashDatabase")
from .hash import HashDatabase
- return HashDatabase(SectionDict(_SESSION, type))
+ _DATABASE = HashDatabase(SectionDict(_SESSION, type))
elif type == "eixsql":
debug("Using EixSQLDatabase")
@@ -57,10 +66,12 @@ def Database(type):
from .eix_sql import EixSQLDatabase
except ImportError:
warning(_("Cannot load %s."), "EixSQLDatabase.")
- return Database("sql")
+ _DATABASE = Database("sql")
else:
- return EixSQLDatabase(SectionDict(_SESSION, type))
+ _DATABASE = EixSQLDatabase(SectionDict(_SESSION, type))
else:
error(_("Unknown database type: %s"), type)
raise UnknownDatabaseTypeError, type
+
+ return _DATABASE