def loadCache(self, filename):
"""Load cache from filename, check if it is valid and that dbversion
matches the required dbversion"""
db = sqlite3.connect(filename)
db.row_factory = sqlite3.Row
db.text_factory = str
cur = db.cursor()
cur.execute("SELECT * FROM db_info")
info = cur.fetchone()
# If info is not in there this is an incompelete cache file
# (this could happen when the user hits ctrl-c or kills yum
# when the cache is being generated or updated)
if not info:
raise sqlite3.DatabaseError, "Incomplete database cache file"
# Now check the database version
if info['dbversion'] not in supported_dbversions:
log.info2(
"Cache file is version %s, we need %s, will "
"regenerate.\n", info['dbversion'], dbversion)
raise sqlite3.DatabaseError, "Older version of yum sqlite: %s" % info[
'dbversion']
# This appears to be a valid database, return checksum value and
# database object
return (info['checksum'], db)
def create(self, filename):
"""Create an initial database"""
# If it exists, remove it as we were asked to create a new one
if os.path.exists(filename):
try:
os.unlink(filename)
except OSError:
pass
# Try to create the databse in filename, or use in memory when
# this fails
try:
f = open(filename, 'w')
db = sqlite3.connect(filename)
except IOError:
log.warning("Could not create sqlite cache file, using in memory "
"cache instead")
db = sqlite3.connect(":memory:")
db.row_factory = sqlite3.Row
db.text_factory = str
return db
def create(self, filename):
"""Create an initial database"""
# If it exists, remove it as we were asked to create a new one
if os.path.exists(filename):
try:
os.unlink(filename)
except OSError:
pass
# Try to create the databse in filename, or use in memory when
# this fails
try:
f = open(filename, 'w')
db = sqlite3.connect(filename)
except IOError:
log.warning("Could not create sqlite cache file, using in memory "
"cache instead")
db = sqlite3.connect(":memory:")
db.row_factory = sqlite3.Row
db.text_factory = str
return db
def loadCache(self, filename):
"""Load cache from filename, check if it is valid and that dbversion
matches the required dbversion"""
db = sqlite3.connect(filename)
db.row_factory = sqlite3.Row
db.text_factory = str
cur = db.cursor()
cur.execute("SELECT * FROM db_info")
info = cur.fetchone()
# If info is not in there this is an incompelete cache file
# (this could happen when the user hits ctrl-c or kills yum
# when the cache is being generated or updated)
if not info:
raise sqlite3.DatabaseError, "Incomplete database cache file"
# Now check the database version
if info['dbversion'] not in supported_dbversions:
log.info2("Cache file is version %s, we need %s, will "
"regenerate.\n", info['dbversion'], dbversion)
raise sqlite3.DatabaseError, "Older version of yum sqlite: %s" % info['dbversion']
# This appears to be a valid database, return checksum value and
# database object
return (info['checksum'], db)