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# -*- coding: utf-8 -*-
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"""
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rhodecode.lib.indexers.daemon
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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A daemon will read from task table and run tasks
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:created_on: Jan 26, 2010
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:author: marcink
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:copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>
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:license: GPLv3, see COPYING for more details.
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"""
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import with_statement
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import os
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import sys
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import logging
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import traceback
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from shutil import rmtree
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from time import mktime
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from os.path import dirname as dn
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from os.path import join as jn
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#to get the rhodecode import
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project_path = dn(dn(dn(dn(os.path.realpath(__file__)))))
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sys.path.append(project_path)
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from rhodecode.config.conf import INDEX_EXTENSIONS
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from rhodecode.model.scm import ScmModel
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from rhodecode.lib.utils2 import safe_unicode, safe_str
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from rhodecode.lib.indexers import SCHEMA, IDX_NAME, CHGSETS_SCHEMA, \
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CHGSET_IDX_NAME
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from rhodecode.lib.vcs.exceptions import ChangesetError, RepositoryError, \
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NodeDoesNotExistError
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from whoosh.index import create_in, open_dir, exists_in
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from whoosh.query import *
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from whoosh.qparser import QueryParser
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log = logging.getLogger('whoosh_indexer')
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class WhooshIndexingDaemon(object):
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"""
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Daemon for atomic indexing jobs
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"""
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def __init__(self, indexname=IDX_NAME, index_location=None,
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repo_location=None, sa=None, repo_list=None,
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repo_update_list=None):
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self.indexname = indexname
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self.index_location = index_location
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if not index_location:
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raise Exception('You have to provide index location')
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self.repo_location = repo_location
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if not repo_location:
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raise Exception('You have to provide repositories location')
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self.repo_paths = ScmModel(sa).repo_scan(self.repo_location)
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#filter repo list
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if repo_list:
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#Fix non-ascii repo names to unicode
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repo_list = map(safe_unicode, repo_list)
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self.filtered_repo_paths = {}
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for repo_name, repo in self.repo_paths.items():
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if repo_name in repo_list:
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self.filtered_repo_paths[repo_name] = repo
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self.repo_paths = self.filtered_repo_paths
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#filter update repo list
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self.filtered_repo_update_paths = {}
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if repo_update_list:
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self.filtered_repo_update_paths = {}
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for repo_name, repo in self.repo_paths.items():
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if repo_name in repo_update_list:
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self.filtered_repo_update_paths[repo_name] = repo
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self.repo_paths = self.filtered_repo_update_paths
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self.initial = True
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if not os.path.isdir(self.index_location):
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os.makedirs(self.index_location)
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log.info('Cannot run incremental index since it does not'
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' yet exist running full build')
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elif not exists_in(self.index_location, IDX_NAME):
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log.info('Running full index build as the file content'
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' index does not exist')
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elif not exists_in(self.index_location, CHGSET_IDX_NAME):
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log.info('Running full index build as the changeset'
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' index does not exist')
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else:
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self.initial = False
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def get_paths(self, repo):
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"""
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recursive walk in root dir and return a set of all path in that dir
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based on repository walk function
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"""
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index_paths_ = set()
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try:
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tip = repo.get_changeset('tip')
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for _topnode, _dirs, files in tip.walk('/'):
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for f in files:
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index_paths_.add(jn(safe_str(repo.path), safe_str(f.path)))
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except RepositoryError:
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log.debug(traceback.format_exc())
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pass
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return index_paths_
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def get_node(self, repo, path):
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n_path = path[len(repo.path) + 1:]
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node = repo.get_changeset().get_node(n_path)
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return node
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def get_node_mtime(self, node):
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return mktime(node.last_changeset.date.timetuple())
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def add_doc(self, writer, path, repo, repo_name):
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"""
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Adding doc to writer this function itself fetches data from
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the instance of vcs backend
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"""
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node = self.get_node(repo, path)
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indexed = indexed_w_content = 0
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# we just index the content of chosen files, and skip binary files
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if node.extension in INDEX_EXTENSIONS and not node.is_binary:
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u_content = node.content
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if not isinstance(u_content, unicode):
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log.warning(' >> %s Could not get this content as unicode '
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'replacing with empty content' % path)
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u_content = u''
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else:
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log.debug(' >> %s [WITH CONTENT]' % path)
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indexed_w_content += 1
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else:
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log.debug(' >> %s' % path)
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# just index file name without it's content
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u_content = u''
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indexed += 1
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p = safe_unicode(path)
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writer.add_document(
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fileid=p,
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owner=unicode(repo.contact),
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repository=safe_unicode(repo_name),
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path=p,
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content=u_content,
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modtime=self.get_node_mtime(node),
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extension=node.extension
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)
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return indexed, indexed_w_content
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def index_changesets(self, writer, repo_name, repo, start_rev=None):
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"""
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Add all changeset in the vcs repo starting at start_rev
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to the index writer
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:param writer: the whoosh index writer to add to
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:param repo_name: name of the repository from whence the
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changeset originates including the repository group
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:param repo: the vcs repository instance to index changesets for,
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the presumption is the repo has changesets to index
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:param start_rev=None: the full sha id to start indexing from
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if start_rev is None then index from the first changeset in
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the repo
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"""
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if start_rev is None:
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start_rev = repo[0].raw_id
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log.debug('indexing changesets in %s starting at rev: %s' %
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(repo_name, start_rev))
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indexed = 0
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for cs in repo.get_changesets(start=start_rev):
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log.debug(' >> %s' % cs)
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writer.add_document(
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raw_id=unicode(cs.raw_id),
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owner=unicode(repo.contact),
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date=cs._timestamp,
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repository=safe_unicode(repo_name),
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author=cs.author,
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message=cs.message,
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last=cs.last,
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added=u' '.join([safe_unicode(node.path) for node in cs.added]).lower(),
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removed=u' '.join([safe_unicode(node.path) for node in cs.removed]).lower(),
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changed=u' '.join([safe_unicode(node.path) for node in cs.changed]).lower(),
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parents=u' '.join([cs.raw_id for cs in cs.parents]),
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)
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indexed += 1
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log.debug('indexed %d changesets for repo %s' % (indexed, repo_name))
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return indexed
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def index_files(self, file_idx_writer, repo_name, repo):
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"""
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Index files for given repo_name
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:param file_idx_writer: the whoosh index writer to add to
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:param repo_name: name of the repository we're indexing
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:param repo: instance of vcs repo
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"""
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i_cnt = iwc_cnt = 0
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log.debug('building index for [%s]' % repo.path)
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for idx_path in self.get_paths(repo):
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i, iwc = self.add_doc(file_idx_writer, idx_path, repo, repo_name)
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i_cnt += i
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iwc_cnt += iwc
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log.debug('added %s files %s with content for repo %s' %
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(i_cnt + iwc_cnt, iwc_cnt, repo.path))
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return i_cnt, iwc_cnt
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def update_changeset_index(self):
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idx = open_dir(self.index_location, indexname=CHGSET_IDX_NAME)
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with idx.searcher() as searcher:
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writer = idx.writer()
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writer_is_dirty = False
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try:
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indexed_total = 0
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repo_name = None
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for repo_name, repo in self.repo_paths.items():
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# skip indexing if there aren't any revs in the repo
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num_of_revs = len(repo)
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if num_of_revs < 1:
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continue
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qp = QueryParser('repository', schema=CHGSETS_SCHEMA)
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q = qp.parse(u"last:t AND %s" % repo_name)
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results = searcher.search(q)
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# default to scanning the entire repo
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last_rev = 0
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start_id = None
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if len(results) > 0:
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# assuming that there is only one result, if not this
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# may require a full re-index.
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start_id = results[0]['raw_id']
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last_rev = repo.get_changeset(revision=start_id).revision
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# there are new changesets to index or a new repo to index
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if last_rev == 0 or num_of_revs > last_rev + 1:
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# delete the docs in the index for the previous
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# last changeset(s)
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for hit in results:
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q = qp.parse(u"last:t AND %s AND raw_id:%s" %
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(repo_name, hit['raw_id']))
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writer.delete_by_query(q)
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# index from the previous last changeset + all new ones
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indexed_total += self.index_changesets(writer,
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repo_name, repo, start_id)
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writer_is_dirty = True
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log.debug('indexed %s changesets for repo %s' % (
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indexed_total, repo_name)
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)
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finally:
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if writer_is_dirty:
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log.debug('>> COMMITING CHANGES TO CHANGESET INDEX<<')
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writer.commit(merge=True)
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log.debug('>>> FINISHED REBUILDING CHANGESET INDEX <<<')
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else:
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writer.cancel
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log.debug('>> NOTHING TO COMMIT TO CHANGESET INDEX<<')
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def update_file_index(self):
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log.debug((u'STARTING INCREMENTAL INDEXING UPDATE FOR EXTENSIONS %s '
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'AND REPOS %s') % (INDEX_EXTENSIONS, self.repo_paths.keys()))
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idx = open_dir(self.index_location, indexname=self.indexname)
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# The set of all paths in the index
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indexed_paths = set()
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# The set of all paths we need to re-index
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to_index = set()
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writer = idx.writer()
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writer_is_dirty = False
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try:
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with idx.reader() as reader:
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# Loop over the stored fields in the index
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for fields in reader.all_stored_fields():
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indexed_path = fields['path']
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indexed_repo_path = fields['repository']
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indexed_paths.add(indexed_path)
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if not indexed_repo_path in self.filtered_repo_update_paths:
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continue
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repo = self.repo_paths[indexed_repo_path]
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try:
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node = self.get_node(repo, indexed_path)
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# Check if this file was changed since it was indexed
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indexed_time = fields['modtime']
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mtime = self.get_node_mtime(node)
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if mtime > indexed_time:
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# The file has changed, delete it and add it to
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# the list of files to reindex
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log.debug(
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'adding to reindex list %s mtime: %s vs %s' % (
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indexed_path, mtime, indexed_time)
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)
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writer.delete_by_term('fileid', indexed_path)
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writer_is_dirty = True
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to_index.add(indexed_path)
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except (ChangesetError, NodeDoesNotExistError):
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# This file was deleted since it was indexed
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log.debug('removing from index %s' % indexed_path)
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writer.delete_by_term('path', indexed_path)
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writer_is_dirty = True
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# Loop over the files in the filesystem
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# Assume we have a function that gathers the filenames of the
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# documents to be indexed
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ri_cnt_total = 0 # indexed
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riwc_cnt_total = 0 # indexed with content
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for repo_name, repo in self.repo_paths.items():
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# skip indexing if there aren't any revisions
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if len(repo) < 1:
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continue
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ri_cnt = 0 # indexed
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riwc_cnt = 0 # indexed with content
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for path in self.get_paths(repo):
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path = safe_unicode(path)
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if path in to_index or path not in indexed_paths:
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# This is either a file that's changed, or a new file
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# that wasn't indexed before. So index it!
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i, iwc = self.add_doc(writer, path, repo, repo_name)
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writer_is_dirty = True
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log.debug('re indexing %s' % path)
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ri_cnt += i
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ri_cnt_total += 1
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riwc_cnt += iwc
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riwc_cnt_total += iwc
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log.debug('added %s files %s with content for repo %s' % (
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ri_cnt + riwc_cnt, riwc_cnt, repo.path)
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)
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log.debug('indexed %s files in total and %s with content' % (
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ri_cnt_total, riwc_cnt_total)
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)
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finally:
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if writer_is_dirty:
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log.debug('>> COMMITING CHANGES TO FILE INDEX <<')
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writer.commit(merge=True)
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log.debug('>>> FINISHED REBUILDING FILE INDEX <<<')
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else:
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log.debug('>> NOTHING TO COMMIT TO FILE INDEX <<')
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writer.cancel()
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def build_indexes(self):
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if os.path.exists(self.index_location):
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log.debug('removing previous index')
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rmtree(self.index_location)
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if not os.path.exists(self.index_location):
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os.mkdir(self.index_location)
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chgset_idx = create_in(self.index_location, CHGSETS_SCHEMA,
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indexname=CHGSET_IDX_NAME)
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chgset_idx_writer = chgset_idx.writer()
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file_idx = create_in(self.index_location, SCHEMA, indexname=IDX_NAME)
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file_idx_writer = file_idx.writer()
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log.debug('BUILDING INDEX FOR EXTENSIONS %s '
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'AND REPOS %s' % (INDEX_EXTENSIONS, self.repo_paths.keys()))
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for repo_name, repo in self.repo_paths.items():
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# skip indexing if there aren't any revisions
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if len(repo) < 1:
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continue
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self.index_files(file_idx_writer, repo_name, repo)
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self.index_changesets(chgset_idx_writer, repo_name, repo)
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log.debug('>> COMMITING CHANGES <<')
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file_idx_writer.commit(merge=True)
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chgset_idx_writer.commit(merge=True)
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log.debug('>>> FINISHED BUILDING INDEX <<<')
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def update_indexes(self):
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self.update_file_index()
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self.update_changeset_index()
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def run(self, full_index=False):
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"""Run daemon"""
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if full_index or self.initial:
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self.build_indexes()
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else:
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self.update_indexes()
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