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# Infinite push
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#
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# Copyright 2016 Facebook, Inc.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import logging
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import os
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import time
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import warnings
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import mysql.connector
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from mercurial import pycompat
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from . import indexapi
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def _convertbookmarkpattern(pattern):
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pattern = pattern.replace(b'_', b'\\_')
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pattern = pattern.replace(b'%', b'\\%')
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if pattern.endswith(b'*'):
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pattern = pattern[:-1] + b'%'
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return pattern
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class sqlindexapi(indexapi.indexapi):
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'''
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Sql backend for infinitepush index. See schema.sql
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'''
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def __init__(
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self,
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reponame,
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host,
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port,
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database,
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user,
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password,
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logfile,
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loglevel,
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waittimeout=300,
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locktimeout=120,
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):
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super(sqlindexapi, self).__init__()
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self.reponame = reponame
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self.sqlargs = {
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b'host': host,
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b'port': port,
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b'database': database,
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b'user': user,
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b'password': password,
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}
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self.sqlconn = None
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self.sqlcursor = None
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if not logfile:
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logfile = os.devnull
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logging.basicConfig(filename=logfile)
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self.log = logging.getLogger()
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self.log.setLevel(loglevel)
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self._connected = False
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self._waittimeout = waittimeout
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self._locktimeout = locktimeout
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def sqlconnect(self):
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if self.sqlconn:
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raise indexapi.indexexception(b"SQL connection already open")
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if self.sqlcursor:
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raise indexapi.indexexception(
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b"SQL cursor already open without connection"
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)
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retry = 3
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while True:
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try:
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self.sqlconn = mysql.connector.connect(**self.sqlargs)
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# Code is copy-pasted from hgsql. Bug fixes need to be
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# back-ported!
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# The default behavior is to return byte arrays, when we
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# need strings. This custom convert returns strings.
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self.sqlconn.set_converter_class(CustomConverter)
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self.sqlconn.autocommit = False
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break
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except mysql.connector.errors.Error:
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# mysql can be flakey occasionally, so do some minimal
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# retrying.
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retry -= 1
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if retry == 0:
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raise
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time.sleep(0.2)
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waittimeout = self.sqlconn.converter.escape(b'%s' % self._waittimeout)
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self.sqlcursor = self.sqlconn.cursor()
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self.sqlcursor.execute(b"SET wait_timeout=%s" % waittimeout)
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self.sqlcursor.execute(
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b"SET innodb_lock_wait_timeout=%s" % self._locktimeout
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)
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self._connected = True
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def close(self):
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"""Cleans up the metadata store connection."""
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with warnings.catch_warnings():
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warnings.simplefilter(b"ignore")
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self.sqlcursor.close()
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self.sqlconn.close()
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self.sqlcursor = None
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self.sqlconn = None
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def __enter__(self):
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if not self._connected:
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self.sqlconnect()
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return self
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def __exit__(self, exc_type, exc_val, exc_tb):
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if exc_type is None:
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self.sqlconn.commit()
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else:
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self.sqlconn.rollback()
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def addbundle(self, bundleid, nodesctx):
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if not self._connected:
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self.sqlconnect()
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self.log.info(b"ADD BUNDLE %r %r" % (self.reponame, bundleid))
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self.sqlcursor.execute(
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b"INSERT INTO bundles(bundle, reponame) VALUES (%s, %s)",
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params=(bundleid, self.reponame),
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)
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for ctx in nodesctx:
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self.sqlcursor.execute(
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b"INSERT INTO nodestobundle(node, bundle, reponame) "
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b"VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE "
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b"bundle=VALUES(bundle)",
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params=(ctx.hex(), bundleid, self.reponame),
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)
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extra = ctx.extra()
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author_name = ctx.user()
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committer_name = extra.get(b'committer', ctx.user())
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author_date = int(ctx.date()[0])
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committer_date = int(extra.get(b'committer_date', author_date))
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self.sqlcursor.execute(
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b"INSERT IGNORE INTO nodesmetadata(node, message, p1, p2, "
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b"author, committer, author_date, committer_date, "
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b"reponame) VALUES "
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b"(%s, %s, %s, %s, %s, %s, %s, %s, %s)",
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params=(
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ctx.hex(),
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ctx.description(),
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ctx.p1().hex(),
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ctx.p2().hex(),
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author_name,
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committer_name,
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author_date,
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committer_date,
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self.reponame,
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),
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)
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def addbookmark(self, bookmark, node):
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"""Takes a bookmark name and hash, and records mapping in the metadata
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store."""
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if not self._connected:
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self.sqlconnect()
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self.log.info(
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b"ADD BOOKMARKS %r bookmark: %r node: %r"
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% (self.reponame, bookmark, node)
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)
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self.sqlcursor.execute(
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b"INSERT INTO bookmarkstonode(bookmark, node, reponame) "
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b"VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE node=VALUES(node)",
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params=(bookmark, node, self.reponame),
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)
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def addmanybookmarks(self, bookmarks):
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if not self._connected:
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self.sqlconnect()
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args = []
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values = []
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for bookmark, node in pycompat.iteritems(bookmarks):
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args.append(b'(%s, %s, %s)')
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values.extend((bookmark, node, self.reponame))
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args = b','.join(args)
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self.sqlcursor.execute(
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b"INSERT INTO bookmarkstonode(bookmark, node, reponame) "
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b"VALUES %s ON DUPLICATE KEY UPDATE node=VALUES(node)" % args,
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params=values,
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)
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def deletebookmarks(self, patterns):
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"""Accepts list of bookmark patterns and deletes them.
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If `commit` is set then bookmark will actually be deleted. Otherwise
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deletion will be delayed until the end of transaction.
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"""
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if not self._connected:
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self.sqlconnect()
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self.log.info(b"DELETE BOOKMARKS: %s" % patterns)
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for pattern in patterns:
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pattern = _convertbookmarkpattern(pattern)
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self.sqlcursor.execute(
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b"DELETE from bookmarkstonode WHERE bookmark LIKE (%s) "
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b"and reponame = %s",
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params=(pattern, self.reponame),
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)
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def getbundle(self, node):
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"""Returns the bundleid for the bundle that contains the given node."""
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if not self._connected:
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self.sqlconnect()
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self.log.info(b"GET BUNDLE %r %r" % (self.reponame, node))
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self.sqlcursor.execute(
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b"SELECT bundle from nodestobundle "
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b"WHERE node = %s AND reponame = %s",
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params=(node, self.reponame),
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)
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result = self.sqlcursor.fetchall()
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if len(result) != 1 or len(result[0]) != 1:
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self.log.info(b"No matching node")
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return None
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bundle = result[0][0]
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self.log.info(b"Found bundle %r" % bundle)
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return bundle
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def getnode(self, bookmark):
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"""Returns the node for the given bookmark. None if it doesn't exist."""
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if not self._connected:
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self.sqlconnect()
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self.log.info(
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b"GET NODE reponame: %r bookmark: %r" % (self.reponame, bookmark)
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)
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self.sqlcursor.execute(
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b"SELECT node from bookmarkstonode WHERE "
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b"bookmark = %s AND reponame = %s",
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params=(bookmark, self.reponame),
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)
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result = self.sqlcursor.fetchall()
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if len(result) != 1 or len(result[0]) != 1:
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self.log.info(b"No matching bookmark")
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return None
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node = result[0][0]
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self.log.info(b"Found node %r" % node)
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return node
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def getbookmarks(self, query):
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if not self._connected:
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self.sqlconnect()
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self.log.info(
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b"QUERY BOOKMARKS reponame: %r query: %r" % (self.reponame, query)
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)
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query = _convertbookmarkpattern(query)
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self.sqlcursor.execute(
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b"SELECT bookmark, node from bookmarkstonode WHERE "
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b"reponame = %s AND bookmark LIKE %s",
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params=(self.reponame, query),
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)
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result = self.sqlcursor.fetchall()
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bookmarks = {}
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for row in result:
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if len(row) != 2:
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self.log.info(b"Bad row returned: %s" % row)
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continue
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bookmarks[row[0]] = row[1]
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return bookmarks
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def saveoptionaljsonmetadata(self, node, jsonmetadata):
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if not self._connected:
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self.sqlconnect()
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self.log.info(
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(
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b"INSERT METADATA, QUERY BOOKMARKS reponame: %r "
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+ b"node: %r, jsonmetadata: %s"
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)
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% (self.reponame, node, jsonmetadata)
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)
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self.sqlcursor.execute(
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b"UPDATE nodesmetadata SET optional_json_metadata=%s WHERE "
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b"reponame=%s AND node=%s",
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params=(jsonmetadata, self.reponame, node),
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)
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class CustomConverter(mysql.connector.conversion.MySQLConverter):
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"""Ensure that all values being returned are returned as python string
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(versus the default byte arrays)."""
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def _STRING_to_python(self, value, dsc=None):
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return str(value)
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def _VAR_STRING_to_python(self, value, dsc=None):
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return str(value)
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def _BLOB_to_python(self, value, dsc=None):
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return str(value)
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