Mercurial > kallithea
view rhodecode/lib/indexers/daemon.py @ 759:a7f50911a945 beta
Models code cleanups
author | Marcin Kuzminski <marcin@python-works.com> |
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date | Thu, 25 Nov 2010 22:16:29 +0100 |
parents | 7486da5f0628 |
children | 0dad296d2a57 |
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#!/usr/bin/env python # encoding: utf-8 # whoosh indexer daemon for rhodecode # Copyright (C) 2009-2010 Marcin Kuzminski <marcin@python-works.com> # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; version 2 # of the License or (at your opinion) any later version of the license. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, # MA 02110-1301, USA. """ Created on Jan 26, 2010 @author: marcink A deamon will read from task table and run tasks """ import sys import os from os.path import dirname as dn from os.path import join as jn #to get the rhodecode import project_path = dn(dn(dn(dn(os.path.realpath(__file__))))) sys.path.append(project_path) from rhodecode.model.scm import ScmModel from rhodecode.lib.helpers import safe_unicode from whoosh.index import create_in, open_dir from shutil import rmtree from rhodecode.lib.indexers import INDEX_EXTENSIONS, SCHEMA, IDX_NAME from time import mktime from vcs.exceptions import ChangesetError, RepositoryError import logging log = logging.getLogger('whooshIndexer') # create logger log.setLevel(logging.DEBUG) log.propagate = False # create console handler and set level to debug ch = logging.StreamHandler() ch.setLevel(logging.DEBUG) # create formatter formatter = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s") # add formatter to ch ch.setFormatter(formatter) # add ch to logger log.addHandler(ch) class WhooshIndexingDaemon(object): """ Deamon for atomic jobs """ def __init__(self, indexname='HG_INDEX', index_location=None, repo_location=None): self.indexname = indexname self.index_location = index_location if not index_location: raise Exception('You have to provide index location') self.repo_location = repo_location if not repo_location: raise Exception('You have to provide repositories location') self.repo_paths = ScmModel().repo_scan(self.repo_location, None, True) self.initial = False if not os.path.isdir(self.index_location): os.mkdir(self.index_location) log.info('Cannot run incremental index since it does not' ' yet exist running full build') self.initial = True def get_paths(self, repo): """recursive walk in root dir and return a set of all path in that dir based on repository walk function """ index_paths_ = set() try: for topnode, dirs, files in repo.walk('/', 'tip'): for f in files: index_paths_.add(jn(repo.path, f.path)) for dir in dirs: for f in files: index_paths_.add(jn(repo.path, f.path)) except RepositoryError: pass return index_paths_ def get_node(self, repo, path): n_path = path[len(repo.path) + 1:] node = repo.get_changeset().get_node(n_path) return node def get_node_mtime(self, node): return mktime(node.last_changeset.date.timetuple()) def add_doc(self, writer, path, repo): """Adding doc to writer this function itself fetches data from the instance of vcs backend""" node = self.get_node(repo, path) #we just index the content of chosen files if node.extension in INDEX_EXTENSIONS: log.debug(' >> %s [WITH CONTENT]' % path) u_content = node.content else: log.debug(' >> %s' % path) #just index file name without it's content u_content = u'' writer.add_document(owner=unicode(repo.contact), repository=safe_unicode(repo.name), path=safe_unicode(path), content=u_content, modtime=self.get_node_mtime(node), extension=node.extension) def build_index(self): if os.path.exists(self.index_location): log.debug('removing previous index') rmtree(self.index_location) if not os.path.exists(self.index_location): os.mkdir(self.index_location) idx = create_in(self.index_location, SCHEMA, indexname=IDX_NAME) writer = idx.writer() for cnt, repo in enumerate(self.repo_paths.values()): log.debug('building index @ %s' % repo.path) for idx_path in self.get_paths(repo): self.add_doc(writer, idx_path, repo) log.debug('>> COMMITING CHANGES <<') writer.commit(merge=True) log.debug('>>> FINISHED BUILDING INDEX <<<') def update_index(self): log.debug('STARTING INCREMENTAL INDEXING UPDATE') idx = open_dir(self.index_location, indexname=self.indexname) # The set of all paths in the index indexed_paths = set() # The set of all paths we need to re-index to_index = set() reader = idx.reader() writer = idx.writer() # Loop over the stored fields in the index for fields in reader.all_stored_fields(): indexed_path = fields['path'] indexed_paths.add(indexed_path) repo = self.repo_paths[fields['repository']] try: node = self.get_node(repo, indexed_path) except ChangesetError: # This file was deleted since it was indexed log.debug('removing from index %s' % indexed_path) writer.delete_by_term('path', indexed_path) else: # Check if this file was changed since it was indexed indexed_time = fields['modtime'] mtime = self.get_node_mtime(node) if mtime > indexed_time: # The file has changed, delete it and add it to the list of # files to reindex log.debug('adding to reindex list %s' % indexed_path) writer.delete_by_term('path', indexed_path) to_index.add(indexed_path) # Loop over the files in the filesystem # Assume we have a function that gathers the filenames of the # documents to be indexed for repo in self.repo_paths.values(): for path in self.get_paths(repo): if path in to_index or path not in indexed_paths: # This is either a file that's changed, or a new file # that wasn't indexed before. So index it! self.add_doc(writer, path, repo) log.debug('re indexing %s' % path) log.debug('>> COMMITING CHANGES <<') writer.commit(merge=True) log.debug('>>> FINISHED REBUILDING INDEX <<<') def run(self, full_index=False): """Run daemon""" if full_index or self.initial: self.build_index() else: self.update_index()