277 lines
10 KiB
Python
277 lines
10 KiB
Python
import logging
|
|
import os.path
|
|
import errno
|
|
import prserv
|
|
import time
|
|
|
|
try:
|
|
import sqlite3
|
|
except ImportError:
|
|
from pysqlite2 import dbapi2 as sqlite3
|
|
|
|
logger = logging.getLogger("BitBake.PRserv")
|
|
|
|
sqlversion = sqlite3.sqlite_version_info
|
|
if sqlversion[0] < 3 or (sqlversion[0] == 3 and sqlversion[1] < 3):
|
|
raise Exception("sqlite3 version 3.3.0 or later is required.")
|
|
|
|
#
|
|
# "No History" mode - for a given query tuple (version, pkgarch, checksum),
|
|
# the returned value will be the largest among all the values of the same
|
|
# (version, pkgarch). This means the PR value returned can NOT be decremented.
|
|
#
|
|
# "History" mode - Return a new higher value for previously unseen query
|
|
# tuple (version, pkgarch, checksum), otherwise return historical value.
|
|
# Value can decrement if returning to a previous build.
|
|
#
|
|
|
|
class PRTable(object):
|
|
def __init__(self, conn, table, nohist):
|
|
self.conn = conn
|
|
self.nohist = nohist
|
|
self.dirty = False
|
|
if nohist:
|
|
self.table = "%s_nohist" % table
|
|
else:
|
|
self.table = "%s_hist" % table
|
|
|
|
self._execute("CREATE TABLE IF NOT EXISTS %s \
|
|
(version TEXT NOT NULL, \
|
|
pkgarch TEXT NOT NULL, \
|
|
checksum TEXT NOT NULL, \
|
|
value INTEGER, \
|
|
PRIMARY KEY (version, pkgarch, checksum));" % self.table)
|
|
|
|
def _execute(self, *query):
|
|
"""Execute a query, waiting to acquire a lock if necessary"""
|
|
start = time.time()
|
|
end = start + 20
|
|
while True:
|
|
try:
|
|
return self.conn.execute(*query)
|
|
except sqlite3.OperationalError as exc:
|
|
if 'is locked' in str(exc) and end > time.time():
|
|
continue
|
|
raise exc
|
|
|
|
def sync(self):
|
|
self.conn.commit()
|
|
self._execute("BEGIN EXCLUSIVE TRANSACTION")
|
|
|
|
def sync_if_dirty(self):
|
|
if self.dirty:
|
|
self.sync()
|
|
self.dirty = False
|
|
|
|
def _getValueHist(self, version, pkgarch, checksum):
|
|
data=self._execute("SELECT value FROM %s WHERE version=? AND pkgarch=? AND checksum=?;" % self.table,
|
|
(version, pkgarch, checksum))
|
|
row=data.fetchone()
|
|
if row != None:
|
|
return row[0]
|
|
else:
|
|
#no value found, try to insert
|
|
try:
|
|
self._execute("INSERT INTO %s VALUES (?, ?, ?, (select ifnull(max(value)+1,0) from %s where version=? AND pkgarch=?));"
|
|
% (self.table,self.table),
|
|
(version,pkgarch, checksum,version, pkgarch))
|
|
except sqlite3.IntegrityError as exc:
|
|
logger.error(str(exc))
|
|
|
|
self.dirty = True
|
|
|
|
data=self._execute("SELECT value FROM %s WHERE version=? AND pkgarch=? AND checksum=?;" % self.table,
|
|
(version, pkgarch, checksum))
|
|
row=data.fetchone()
|
|
if row != None:
|
|
return row[0]
|
|
else:
|
|
raise prserv.NotFoundError
|
|
|
|
def _getValueNohist(self, version, pkgarch, checksum):
|
|
data=self._execute("SELECT value FROM %s \
|
|
WHERE version=? AND pkgarch=? AND checksum=? AND \
|
|
value >= (select max(value) from %s where version=? AND pkgarch=?);"
|
|
% (self.table, self.table),
|
|
(version, pkgarch, checksum, version, pkgarch))
|
|
row=data.fetchone()
|
|
if row != None:
|
|
return row[0]
|
|
else:
|
|
#no value found, try to insert
|
|
try:
|
|
self._execute("INSERT OR REPLACE INTO %s VALUES (?, ?, ?, (select ifnull(max(value)+1,0) from %s where version=? AND pkgarch=?));"
|
|
% (self.table,self.table),
|
|
(version, pkgarch, checksum, version, pkgarch))
|
|
except sqlite3.IntegrityError as exc:
|
|
logger.error(str(exc))
|
|
self.conn.rollback()
|
|
|
|
self.dirty = True
|
|
|
|
data=self._execute("SELECT value FROM %s WHERE version=? AND pkgarch=? AND checksum=?;" % self.table,
|
|
(version, pkgarch, checksum))
|
|
row=data.fetchone()
|
|
if row != None:
|
|
return row[0]
|
|
else:
|
|
raise prserv.NotFoundError
|
|
|
|
def getValue(self, version, pkgarch, checksum):
|
|
if self.nohist:
|
|
return self._getValueNohist(version, pkgarch, checksum)
|
|
else:
|
|
return self._getValueHist(version, pkgarch, checksum)
|
|
|
|
def _importHist(self, version, pkgarch, checksum, value):
|
|
val = None
|
|
data = self._execute("SELECT value FROM %s WHERE version=? AND pkgarch=? AND checksum=?;" % self.table,
|
|
(version, pkgarch, checksum))
|
|
row = data.fetchone()
|
|
if row != None:
|
|
val=row[0]
|
|
else:
|
|
#no value found, try to insert
|
|
try:
|
|
self._execute("INSERT INTO %s VALUES (?, ?, ?, ?);" % (self.table),
|
|
(version, pkgarch, checksum, value))
|
|
except sqlite3.IntegrityError as exc:
|
|
logger.error(str(exc))
|
|
|
|
self.dirty = True
|
|
|
|
data = self._execute("SELECT value FROM %s WHERE version=? AND pkgarch=? AND checksum=?;" % self.table,
|
|
(version, pkgarch, checksum))
|
|
row = data.fetchone()
|
|
if row != None:
|
|
val = row[0]
|
|
return val
|
|
|
|
def _importNohist(self, version, pkgarch, checksum, value):
|
|
try:
|
|
#try to insert
|
|
self._execute("INSERT INTO %s VALUES (?, ?, ?, ?);" % (self.table),
|
|
(version, pkgarch, checksum,value))
|
|
except sqlite3.IntegrityError as exc:
|
|
#already have the record, try to update
|
|
try:
|
|
self._execute("UPDATE %s SET value=? WHERE version=? AND pkgarch=? AND checksum=? AND value<?"
|
|
% (self.table),
|
|
(value,version,pkgarch,checksum,value))
|
|
except sqlite3.IntegrityError as exc:
|
|
logger.error(str(exc))
|
|
|
|
self.dirty = True
|
|
|
|
data = self._execute("SELECT value FROM %s WHERE version=? AND pkgarch=? AND checksum=? AND value>=?;" % self.table,
|
|
(version,pkgarch,checksum,value))
|
|
row=data.fetchone()
|
|
if row != None:
|
|
return row[0]
|
|
else:
|
|
return None
|
|
|
|
def importone(self, version, pkgarch, checksum, value):
|
|
if self.nohist:
|
|
return self._importNohist(version, pkgarch, checksum, value)
|
|
else:
|
|
return self._importHist(version, pkgarch, checksum, value)
|
|
|
|
def export(self, version, pkgarch, checksum, colinfo):
|
|
metainfo = {}
|
|
#column info
|
|
if colinfo:
|
|
metainfo['tbl_name'] = self.table
|
|
metainfo['core_ver'] = prserv.__version__
|
|
metainfo['col_info'] = []
|
|
data = self._execute("PRAGMA table_info(%s);" % self.table)
|
|
for row in data:
|
|
col = {}
|
|
col['name'] = row['name']
|
|
col['type'] = row['type']
|
|
col['notnull'] = row['notnull']
|
|
col['dflt_value'] = row['dflt_value']
|
|
col['pk'] = row['pk']
|
|
metainfo['col_info'].append(col)
|
|
|
|
#data info
|
|
datainfo = []
|
|
|
|
if self.nohist:
|
|
sqlstmt = "SELECT T1.version, T1.pkgarch, T1.checksum, T1.value FROM %s as T1, \
|
|
(SELECT version,pkgarch,max(value) as maxvalue FROM %s GROUP BY version,pkgarch) as T2 \
|
|
WHERE T1.version=T2.version AND T1.pkgarch=T2.pkgarch AND T1.value=T2.maxvalue " % (self.table, self.table)
|
|
else:
|
|
sqlstmt = "SELECT * FROM %s as T1 WHERE 1=1 " % self.table
|
|
sqlarg = []
|
|
where = ""
|
|
if version:
|
|
where += "AND T1.version=? "
|
|
sqlarg.append(str(version))
|
|
if pkgarch:
|
|
where += "AND T1.pkgarch=? "
|
|
sqlarg.append(str(pkgarch))
|
|
if checksum:
|
|
where += "AND T1.checksum=? "
|
|
sqlarg.append(str(checksum))
|
|
|
|
sqlstmt += where + ";"
|
|
|
|
if len(sqlarg):
|
|
data = self._execute(sqlstmt, tuple(sqlarg))
|
|
else:
|
|
data = self._execute(sqlstmt)
|
|
for row in data:
|
|
if row['version']:
|
|
col = {}
|
|
col['version'] = row['version']
|
|
col['pkgarch'] = row['pkgarch']
|
|
col['checksum'] = row['checksum']
|
|
col['value'] = row['value']
|
|
datainfo.append(col)
|
|
return (metainfo, datainfo)
|
|
|
|
def dump_db(self, fd):
|
|
writeCount = 0
|
|
for line in self.conn.iterdump():
|
|
writeCount = writeCount + len(line) + 1
|
|
fd.write(line)
|
|
fd.write('\n')
|
|
return writeCount
|
|
|
|
class PRData(object):
|
|
"""Object representing the PR database"""
|
|
def __init__(self, filename, nohist=True):
|
|
self.filename=os.path.abspath(filename)
|
|
self.nohist=nohist
|
|
#build directory hierarchy
|
|
try:
|
|
os.makedirs(os.path.dirname(self.filename))
|
|
except OSError as e:
|
|
if e.errno != errno.EEXIST:
|
|
raise e
|
|
self.connection=sqlite3.connect(self.filename, isolation_level="EXCLUSIVE", check_same_thread = False)
|
|
self.connection.row_factory=sqlite3.Row
|
|
self.connection.execute("pragma synchronous = off;")
|
|
self.connection.execute("PRAGMA journal_mode = WAL;")
|
|
self._tables={}
|
|
|
|
def disconnect(self):
|
|
self.connection.close()
|
|
|
|
def __getitem__(self,tblname):
|
|
if not isinstance(tblname, str):
|
|
raise TypeError("tblname argument must be a string, not '%s'" %
|
|
type(tblname))
|
|
if tblname in self._tables:
|
|
return self._tables[tblname]
|
|
else:
|
|
tableobj = self._tables[tblname] = PRTable(self.connection, tblname, self.nohist)
|
|
return tableobj
|
|
|
|
def __delitem__(self, tblname):
|
|
if tblname in self._tables:
|
|
del self._tables[tblname]
|
|
logger.info("drop table %s" % (tblname))
|
|
self.connection.execute("DROP TABLE IF EXISTS %s;" % tblname)
|