annotate hgext/infinitepush/sqlindexapi.py @ 43076:2372284d9457

formatting: blacken the codebase This is using my patch to black (https://github.com/psf/black/pull/826) so we don't un-wrap collection literals. Done with: hg files 'set:**.py - mercurial/thirdparty/** - "contrib/python-zstandard/**"' | xargs black -S # skip-blame mass-reformatting only # no-check-commit reformats foo_bar functions Differential Revision: https://phab.mercurial-scm.org/D6971
author Augie Fackler <augie@google.com>
date Sun, 06 Oct 2019 09:45:02 -0400
parents c1fac3878196
children 687b865b95ad
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1 # Infinite push
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2 #
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3 # Copyright 2016 Facebook, Inc.
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from __future__ import absolute_import
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9
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10 import logging
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11 import os
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12 import time
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13
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14 import warnings
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15 import mysql.connector
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16
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17 from . import indexapi
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18
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19
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20 def _convertbookmarkpattern(pattern):
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21 pattern = pattern.replace('_', '\\_')
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22 pattern = pattern.replace('%', '\\%')
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23 if pattern.endswith('*'):
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24 pattern = pattern[:-1] + '%'
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25 return pattern
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26
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27
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28 class sqlindexapi(indexapi.indexapi):
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29 '''
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30 Sql backend for infinitepush index. See schema.sql
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31 '''
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32
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33 def __init__(
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34 self,
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35 reponame,
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36 host,
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37 port,
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38 database,
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39 user,
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40 password,
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41 logfile,
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42 loglevel,
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43 waittimeout=300,
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44 locktimeout=120,
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45 ):
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46 super(sqlindexapi, self).__init__()
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47 self.reponame = reponame
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48 self.sqlargs = {
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49 'host': host,
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50 'port': port,
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51 'database': database,
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52 'user': user,
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53 'password': password,
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54 }
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55 self.sqlconn = None
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56 self.sqlcursor = None
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57 if not logfile:
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58 logfile = os.devnull
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59 logging.basicConfig(filename=logfile)
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60 self.log = logging.getLogger()
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61 self.log.setLevel(loglevel)
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62 self._connected = False
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63 self._waittimeout = waittimeout
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64 self._locktimeout = locktimeout
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65
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66 def sqlconnect(self):
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67 if self.sqlconn:
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68 raise indexapi.indexexception("SQL connection already open")
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69 if self.sqlcursor:
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70 raise indexapi.indexexception(
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71 "SQL cursor already open without" " connection"
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72 )
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73 retry = 3
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74 while True:
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75 try:
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76 self.sqlconn = mysql.connector.connect(**self.sqlargs)
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77
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78 # Code is copy-pasted from hgsql. Bug fixes need to be
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79 # back-ported!
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80 # The default behavior is to return byte arrays, when we
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81 # need strings. This custom convert returns strings.
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82 self.sqlconn.set_converter_class(CustomConverter)
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83 self.sqlconn.autocommit = False
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84 break
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85 except mysql.connector.errors.Error:
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86 # mysql can be flakey occasionally, so do some minimal
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87 # retrying.
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88 retry -= 1
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89 if retry == 0:
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90 raise
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91 time.sleep(0.2)
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92
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93 waittimeout = self.sqlconn.converter.escape('%s' % self._waittimeout)
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94
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95 self.sqlcursor = self.sqlconn.cursor()
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96 self.sqlcursor.execute("SET wait_timeout=%s" % waittimeout)
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97 self.sqlcursor.execute(
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98 "SET innodb_lock_wait_timeout=%s" % self._locktimeout
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99 )
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100 self._connected = True
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101
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102 def close(self):
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103 """Cleans up the metadata store connection."""
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104 with warnings.catch_warnings():
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105 warnings.simplefilter("ignore")
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106 self.sqlcursor.close()
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107 self.sqlconn.close()
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108 self.sqlcursor = None
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109 self.sqlconn = None
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110
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111 def __enter__(self):
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112 if not self._connected:
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113 self.sqlconnect()
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114 return self
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115
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116 def __exit__(self, exc_type, exc_val, exc_tb):
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117 if exc_type is None:
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118 self.sqlconn.commit()
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119 else:
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120 self.sqlconn.rollback()
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121
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122 def addbundle(self, bundleid, nodesctx):
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123 if not self._connected:
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124 self.sqlconnect()
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125 self.log.info("ADD BUNDLE %r %r" % (self.reponame, bundleid))
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126 self.sqlcursor.execute(
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127 "INSERT INTO bundles(bundle, reponame) VALUES " "(%s, %s)",
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128 params=(bundleid, self.reponame),
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129 )
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130 for ctx in nodesctx:
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131 self.sqlcursor.execute(
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132 "INSERT INTO nodestobundle(node, bundle, reponame) "
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133 "VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE "
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134 "bundle=VALUES(bundle)",
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135 params=(ctx.hex(), bundleid, self.reponame),
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136 )
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137
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138 extra = ctx.extra()
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139 author_name = ctx.user()
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140 committer_name = extra.get('committer', ctx.user())
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141 author_date = int(ctx.date()[0])
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142 committer_date = int(extra.get('committer_date', author_date))
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143 self.sqlcursor.execute(
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144 "INSERT IGNORE INTO nodesmetadata(node, message, p1, p2, "
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145 "author, committer, author_date, committer_date, "
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146 "reponame) VALUES "
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147 "(%s, %s, %s, %s, %s, %s, %s, %s, %s)",
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148 params=(
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149 ctx.hex(),
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150 ctx.description(),
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151 ctx.p1().hex(),
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152 ctx.p2().hex(),
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153 author_name,
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154 committer_name,
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155 author_date,
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156 committer_date,
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157 self.reponame,
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158 ),
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159 )
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160
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161 def addbookmark(self, bookmark, node):
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162 """Takes a bookmark name and hash, and records mapping in the metadata
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163 store."""
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164 if not self._connected:
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165 self.sqlconnect()
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166 self.log.info(
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167 "ADD BOOKMARKS %r bookmark: %r node: %r"
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168 % (self.reponame, bookmark, node)
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169 )
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170 self.sqlcursor.execute(
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171 "INSERT INTO bookmarkstonode(bookmark, node, reponame) "
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172 "VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE node=VALUES(node)",
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173 params=(bookmark, node, self.reponame),
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174 )
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175
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176 def addmanybookmarks(self, bookmarks):
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177 if not self._connected:
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178 self.sqlconnect()
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179 args = []
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180 values = []
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181 for bookmark, node in bookmarks.iteritems():
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182 args.append('(%s, %s, %s)')
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183 values.extend((bookmark, node, self.reponame))
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184 args = ','.join(args)
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185
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186 self.sqlcursor.execute(
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187 "INSERT INTO bookmarkstonode(bookmark, node, reponame) "
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188 "VALUES %s ON DUPLICATE KEY UPDATE node=VALUES(node)" % args,
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189 params=values,
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190 )
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191
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192 def deletebookmarks(self, patterns):
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193 """Accepts list of bookmark patterns and deletes them.
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194 If `commit` is set then bookmark will actually be deleted. Otherwise
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195 deletion will be delayed until the end of transaction.
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196 """
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197 if not self._connected:
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198 self.sqlconnect()
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199 self.log.info("DELETE BOOKMARKS: %s" % patterns)
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200 for pattern in patterns:
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201 pattern = _convertbookmarkpattern(pattern)
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202 self.sqlcursor.execute(
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203 "DELETE from bookmarkstonode WHERE bookmark LIKE (%s) "
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204 "and reponame = %s",
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205 params=(pattern, self.reponame),
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206 )
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207
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208 def getbundle(self, node):
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209 """Returns the bundleid for the bundle that contains the given node."""
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210 if not self._connected:
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211 self.sqlconnect()
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212 self.log.info("GET BUNDLE %r %r" % (self.reponame, node))
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213 self.sqlcursor.execute(
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214 "SELECT bundle from nodestobundle "
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215 "WHERE node = %s AND reponame = %s",
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216 params=(node, self.reponame),
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217 )
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218 result = self.sqlcursor.fetchall()
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219 if len(result) != 1 or len(result[0]) != 1:
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220 self.log.info("No matching node")
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221 return None
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222 bundle = result[0][0]
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223 self.log.info("Found bundle %r" % bundle)
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224 return bundle
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225
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226 def getnode(self, bookmark):
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227 """Returns the node for the given bookmark. None if it doesn't exist."""
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228 if not self._connected:
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229 self.sqlconnect()
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230 self.log.info(
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231 "GET NODE reponame: %r bookmark: %r" % (self.reponame, bookmark)
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232 )
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233 self.sqlcursor.execute(
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234 "SELECT node from bookmarkstonode WHERE "
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235 "bookmark = %s AND reponame = %s",
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236 params=(bookmark, self.reponame),
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237 )
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238 result = self.sqlcursor.fetchall()
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239 if len(result) != 1 or len(result[0]) != 1:
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240 self.log.info("No matching bookmark")
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241 return None
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242 node = result[0][0]
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243 self.log.info("Found node %r" % node)
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244 return node
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245
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246 def getbookmarks(self, query):
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247 if not self._connected:
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248 self.sqlconnect()
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249 self.log.info(
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250 "QUERY BOOKMARKS reponame: %r query: %r" % (self.reponame, query)
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251 )
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252 query = _convertbookmarkpattern(query)
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253 self.sqlcursor.execute(
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254 "SELECT bookmark, node from bookmarkstonode WHERE "
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255 "reponame = %s AND bookmark LIKE %s",
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256 params=(self.reponame, query),
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257 )
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258 result = self.sqlcursor.fetchall()
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259 bookmarks = {}
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260 for row in result:
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261 if len(row) != 2:
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262 self.log.info("Bad row returned: %s" % row)
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diff changeset
263 continue
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264 bookmarks[row[0]] = row[1]
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265 return bookmarks
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266
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267 def saveoptionaljsonmetadata(self, node, jsonmetadata):
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268 if not self._connected:
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269 self.sqlconnect()
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270 self.log.info(
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271 (
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272 "INSERT METADATA, QUERY BOOKMARKS reponame: %r "
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273 + "node: %r, jsonmetadata: %s"
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274 )
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275 % (self.reponame, node, jsonmetadata)
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276 )
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277
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278 self.sqlcursor.execute(
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279 "UPDATE nodesmetadata SET optional_json_metadata=%s WHERE "
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280 "reponame=%s AND node=%s",
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281 params=(jsonmetadata, self.reponame, node),
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282 )
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283
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284
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285 class CustomConverter(mysql.connector.conversion.MySQLConverter):
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286 """Ensure that all values being returned are returned as python string
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287 (versus the default byte arrays)."""
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288
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289 def _STRING_to_python(self, value, dsc=None):
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290 return str(value)
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291
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292 def _VAR_STRING_to_python(self, value, dsc=None):
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293 return str(value)
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294
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295 def _BLOB_to_python(self, value, dsc=None):
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296 return str(value)