mirror of
https://github.com/facebook/sapling.git
synced 2024-10-12 01:39:21 +03:00
9dc21f8d0b
Summary: D13853115 adds `edenscm/` to `sys.path` and code still uses `import mercurial`. That has nasty problems if both `import mercurial` and `import edenscm.mercurial` are used, because Python would think `mercurial.foo` and `edenscm.mercurial.foo` are different modules so code like `try: ... except mercurial.error.Foo: ...`, or `isinstance(x, mercurial.foo.Bar)` would fail to handle the `edenscm.mercurial` version. There are also some module-level states (ex. `extensions._extensions`) that would cause trouble if they have multiple versions in a single process. Change imports to use the `edenscm` so ideally the `mercurial` is no longer imported at all. Add checks in extensions.py to catch unexpected extensions importing modules from the old (wrong) locations when running tests. Reviewed By: phillco Differential Revision: D13868981 fbshipit-source-id: f4e2513766957fd81d85407994f7521a08e4de48
407 lines
14 KiB
Python
407 lines
14 KiB
Python
# 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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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 indexapi import indexapi, indexexception
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from edenscm.mercurial import util
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def _convertbookmarkpattern(pattern):
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# To search for \, specify it as \\
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# To search for _, specify it as \_
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# To search for %, specify it as \%
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pattern = pattern.replace("\\", "\\\\")
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pattern = pattern.replace("_", "\\_")
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pattern = pattern.replace("%", "\\%")
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if pattern.endswith("*"):
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pattern = pattern[:-1] + "%"
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return pattern
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SEC_IN_DAY = 24 * 60 * 60
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class sqlindexapi(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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shorthasholdrevthreshold,
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waittimeout=600,
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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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"host": host,
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"port": port,
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"database": database,
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"user": user,
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"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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self.shorthasholdrevthreshold = shorthasholdrevthreshold
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def sqlconnect(self):
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if self.sqlconn:
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raise indexexception("SQL connection already open")
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if self.sqlcursor:
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raise indexexception("SQL cursor already open without connection")
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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(force_ipv6=True, **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("%s" % self._waittimeout)
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self.sqlcursor = self.sqlconn.cursor()
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self.sqlcursor.execute("SET wait_timeout=%s" % waittimeout)
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self.sqlcursor.execute("SET innodb_lock_wait_timeout=%s" % self._locktimeout)
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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("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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"""Records bundles, mapping from node to bundle and metadata for nodes
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"""
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if not self._connected:
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self.sqlconnect()
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# insert bundle
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self.log.info("ADD BUNDLE %r %r" % (self.reponame, bundleid))
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self.sqlcursor.execute(
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"INSERT INTO bundles(bundle, reponame) VALUES " "(%s, %s)",
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params=(bundleid, self.reponame),
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)
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# insert nodes to bundle mapping
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self.sqlcursor.executemany(
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"INSERT INTO nodestobundle(node, bundle, reponame) "
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"VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE "
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"bundle=VALUES(bundle)",
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[(ctx.hex(), bundleid, self.reponame) for ctx in nodesctx],
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)
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# insert metadata
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data = [
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(
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ctx.hex(), # node
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ctx.description(), # message
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ctx.p1().hex(), # p1
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ctx.p2().hex(), # p2
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ctx.user(), # author
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ctx.extra().get("committer", ctx.user()), # committer
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int(ctx.date()[0]), # author_date
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int(
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ctx.extra().get("committer_date", int(ctx.date()[0]))
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), # committer_date
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self.reponame, # reponame
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)
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for ctx in nodesctx
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]
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self.sqlcursor.executemany(
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"INSERT IGNORE INTO nodesmetadata(node, message, p1, p2, "
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"author, committer, author_date, committer_date, "
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"reponame) VALUES "
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"(%s, %s, %s, %s, %s, %s, %s, %s, %s)",
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data,
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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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"ADD BOOKMARKS %r bookmark: %r node: %r" % (self.reponame, bookmark, node)
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)
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self.sqlcursor.execute(
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"INSERT INTO bookmarkstonode(bookmark, node, reponame) "
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"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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"""Records mapping of bookmarks and nodes"""
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if not self._connected:
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self.sqlconnect()
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data = [
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(bookmark, node, self.reponame) for bookmark, node in bookmarks.iteritems()
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]
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self.sqlcursor.executemany(
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"INSERT INTO bookmarkstonode(bookmark, node, reponame) "
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"VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE node=VALUES(node)",
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data,
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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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# build and execute detete query
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self.log.info("DELETE BOOKMARKS: %s" % patterns)
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patterns = [_convertbookmarkpattern(pattern) for pattern in patterns]
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condition1 = "reponame = %s"
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condition2 = " OR ".join(("bookmark LIKE (%s)",) * len(patterns))
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query = "DELETE FROM bookmarkstonode WHERE (%s) AND (%s)" % (
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condition1,
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condition2,
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)
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self.sqlcursor.execute(query, params=[self.reponame] + patterns)
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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("GET BUNDLE %r %r" % (self.reponame, node))
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self.sqlcursor.execute(
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"SELECT bundle from nodestobundle " "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("No matching node")
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return None
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bundle = result[0][0]
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self.log.info("Found bundle %r" % bundle)
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return bundle
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def getnodebyprefix(self, prefix):
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"""Returns the node with the given hash prefix.
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None if it doesn't exist.
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Raise error for ambiguous identifier"""
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if not self._connected:
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self.sqlconnect()
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self.log.info("GET NODE BY PREFIX %r %r" % (self.reponame, prefix))
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nodeprefixpattern = prefix + "%"
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result = None
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if len(prefix) >= 6 and len(prefix) < 20:
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# With longer hashes we can make more complex QUERY
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# in order to return some suggestions with the matched PREFIX
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# so user can pick up the desired one easily
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# there is no need to go this path for prefixes longer than 20
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# because to find several commits is highly unlikely
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# Order suggestions by date to show the recent ones first
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cmd = (
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"SELECT t1.node, t2.message, t2.author, t2.committer_date "
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"FROM nodestobundle t1 JOIN nodesmetadata t2 "
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"ON t1.node = t2.node AND t1.reponame = t2.reponame "
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"WHERE t1.node LIKE %s AND t1.reponame = %s "
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"ORDER BY t2.committer_date DESC LIMIT 5"
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)
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params = (nodeprefixpattern, self.reponame)
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self.sqlcursor.execute(cmd, params)
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result = self.sqlcursor.fetchall()
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def gettitle(s):
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return s.splitlines()[0]
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# format time from timestamp
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def formattime(s):
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_timeformat = r"%d %b %Y %H:%M"
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return time.strftime(_timeformat, time.localtime(int(s)))
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# format metadata output from query rows
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def formatdata(arr):
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return "\n".join(
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[
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" changeset: {c}\n"
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" author: {a}\n"
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" date: {d}\n"
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" summary: {m}\n".format(
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c=c, m=gettitle(m), a=a, d=formattime(d)
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)
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for c, m, a, d in result
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]
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)
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if len(result) > 1:
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raise indexexception(
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("ambiguous identifier '%s'\n" % prefix)
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+ "#commitcloud suggestions are:\n"
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+ formatdata(result)
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)
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if len(result) == 1:
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revdate = result[0][3]
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threshold = self.shorthasholdrevthreshold * SEC_IN_DAY
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if time.time() - revdate > threshold:
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raise indexexception(
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"commit '%s' is more than %d days old\n"
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"description:\n%s"
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"#commitcloud hint: if you would like to fetch this "
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"commit, please provide the full hash"
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% (prefix, self.shorthasholdrevthreshold, formatdata(result))
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)
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else:
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self.sqlcursor.execute(
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"SELECT node from nodestobundle "
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"WHERE node LIKE %s "
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"AND reponame = %s "
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"LIMIT 2",
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params=(nodeprefixpattern, self.reponame),
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)
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result = self.sqlcursor.fetchall()
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if len(result) > 1:
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raise indexexception(
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("ambiguous identifier '%s'\n" % prefix)
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+ "suggestion: provide longer commithash prefix"
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)
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# result not found
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if len(result) != 1 or len(result[0]) == 0:
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self.log.info("No matching node")
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return None
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node = result[0][0]
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# Log found result. It is unique.
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self.log.info("Found node %r" % node)
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return node
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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("GET NODE reponame: %r bookmark: %r" % (self.reponame, bookmark))
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self.sqlcursor.execute(
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"SELECT node from bookmarkstonode WHERE " "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("No matching bookmark")
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return None
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node = result[0][0]
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self.log.info("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("QUERY BOOKMARKS reponame: %r query: %r" % (self.reponame, query))
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query = _convertbookmarkpattern(query)
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self.sqlcursor.execute(
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"SELECT bookmark, node from bookmarkstonode WHERE "
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"reponame = %s AND bookmark LIKE %s "
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# Bookmarks have to be restored in the same order of creation
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# See T24417531
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"ORDER BY time ASC",
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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 = util.sortdict()
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for row in result:
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if len(row) != 2:
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self.log.info("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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"INSERT METADATA, QUERY BOOKMARKS reponame: %r "
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+ "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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"UPDATE nodesmetadata SET optional_json_metadata=%s WHERE "
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"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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# localstr is Mercurial-specific. See encoding.py
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def _localstr_to_mysql(self, value):
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return str(value)
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