1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
import logging
import os.path
import errno
import prserv
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.")
class PRTable():
def __init__(self, conn, table, nohist):
self.conn = conn
self.nohist = nohist
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"""
count = 0
while True:
try:
return self.conn.execute(*query)
except sqlite3.OperationalError as exc:
if 'database is locked' in str(exc) and count < 500:
count = count + 1
continue
raise exc
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("BEGIN")
self._execute("INSERT OR ROLLBACK INTO %s VALUES (?, ?, ?, (select ifnull(max(value)+1,0) from %s where version=? AND pkgarch=?));"
% (self.table,self.table),
(version,pkgarch, checksum,version, pkgarch))
self.conn.commit()
except sqlite3.IntegrityError as exc:
logger.error(str(exc))
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("BEGIN")
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))
self.conn.commit()
except sqlite3.IntegrityError as exc:
logger.error(str(exc))
self.conn.rollback()
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("BEGIN")
self._execute("INSERT OR ROLLBACK INTO %s VALUES (?, ?, ?, ?);" % (self.table),
(version, pkgarch, checksum, value))
self.conn.commit()
except sqlite3.IntegrityError as exc:
logger.error(str(exc))
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("BEGIN")
self._execute("INSERT OR ROLLBACK INTO %s VALUES (?, ?, ?, ?);" % (self.table),
(version, pkgarch, checksum,value))
self.conn.commit()
except sqlite3.IntegrityError as exc:
#already have the record, try to update
try:
self._execute("BEGIN")
self._execute("UPDATE %s SET value=? WHERE version=? AND pkgarch=? AND checksum=? AND value<?"
% (self.table),
(value,version,pkgarch,checksum,value))
self.conn.commit()
except sqlite3.IntegrityError as exc:
logger.error(str(exc))
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)
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="DEFERRED")
self.connection.row_factory=sqlite3.Row
self._tables={}
def __del__(self):
self.connection.close()
def __getitem__(self,tblname):
if not isinstance(tblname, basestring):
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)
|