Commit 024b8248 authored by Sebastien Luttringer's avatar Sebastien Luttringer
Browse files

introduce repo and database strict versionning

parent f61d2075

installsystems/database.py

+13 −0
Original line number Diff line number Diff line
@@ -47,10 +47,23 @@ class Database(object): 
            raise Exception("Database not exists")

        self.conn = sqlite3.connect(self.path, isolation_level=None)

        self.conn.execute("PRAGMA foreign_keys = ON")

        # get database version

        try:

            r = self.ask("SELECT value FROM misc WHERE key = 'version'").fetchone()

            if r is None:

                raise TypeError()

            self.version = r[0]

        except:

            self.version = u"1"

        # we only support database v1

        if self.version != u"1":

            debug("Invalid database format: %s" % self.version)

            raise Exception("Invalid database format")

        # we make a query to be sure format is valid

        try:

            self.ask("SELECT * FROM image")

        except:

            debug("Invalid database format: %s" % self.version)

            raise Exception("Invalid database format")



    def begin(self):

installsystems/repository.py

+7 −2
Original line number Diff line number Diff line
@@ -66,7 +66,6 @@ class Repository(object): 


    def __init__(self, config):

        self.config = config

        self.version = 1

        self.local = istools.isfile(self.config.path)

        if not self.config.offline:

            try:
@@ -76,7 +75,6 @@ class Repository(object): 
        if self.config.offline:

            debug("Repository %s is offline" % config.name)





    def __getattribute__(self, name):

        '''

        Raise an error if repository is unavailable
@@ -92,6 +90,13 @@ class Repository(object): 
            raise Exception("Repository %s is offline" % config.name)

        return object.__getattribute__(self, name)



    @property

    def version(self):

        '''

        Return repository version

        '''

        return self.db.version



    def init(self):

        '''

        Initialize an empty base repository